WO2024061342A1 - 刷头以及电动牙刷 - Google Patents

刷头以及电动牙刷 Download PDF

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Publication number
WO2024061342A1
WO2024061342A1 PCT/CN2023/120651 CN2023120651W WO2024061342A1 WO 2024061342 A1 WO2024061342 A1 WO 2024061342A1 CN 2023120651 W CN2023120651 W CN 2023120651W WO 2024061342 A1 WO2024061342 A1 WO 2024061342A1
Authority
WO
WIPO (PCT)
Prior art keywords
brush
hair
plate
brush head
head according
Prior art date
Application number
PCT/CN2023/120651
Other languages
English (en)
French (fr)
Inventor
梁慧嘉
张雨微
Original Assignee
广州星际悦动股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202222549440.5U external-priority patent/CN218737712U/zh
Priority claimed from CN202222549474.4U external-priority patent/CN218737711U/zh
Priority claimed from CN202222549713.6U external-priority patent/CN218737704U/zh
Priority claimed from CN202321557559.5U external-priority patent/CN220193240U/zh
Priority claimed from CN202322046784.9U external-priority patent/CN220530167U/zh
Application filed by 广州星际悦动股份有限公司 filed Critical 广州星际悦动股份有限公司
Publication of WO2024061342A1 publication Critical patent/WO2024061342A1/zh

Links

Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/06Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor

Definitions

  • the present application relates to the technical field of oral cleaning, and in particular to a brush head and an electric toothbrush using the brush head.
  • an electric toothbrush drives the brush head to vibrate at high frequency, and the high-frequency vibrating brush head contacts the teeth or gums to clean the user's oral cavity.
  • the brush plate of the brush head is made of hard material (such as plastic), during the vibration process of the brush head, the harder brush plate hits the teeth or gums, which may cause discomfort to the user or cause damage to the oral cavity.
  • the present application provides a brush head and an electric toothbrush, which not only have good shock-absorbing performance and can effectively protect teeth and gums, but also have a soft rubber part firmly connected to the brush plate.
  • the first aspect of the embodiment of the present application provides a brush head, which includes a brush rod, a brush plate and a soft rubber part.
  • the brush rod has a length direction;
  • the brush plate includes a hair transplanting plate and a back plate, and at least one of the back plate and the hair transplanting plate is connected to the brush rod;
  • the hair transplanting plate includes a hair transplanting surface and a back side arranged oppositely, and the hair transplanting board also includes a hair transplanting surface and a back surface.
  • the bristles extend from the hair-planting surface;
  • the back plate is arranged on the side of the hair-planting plate away from the bristles, and part of the back plate is spaced from the back to form a filling groove, and along the length direction,
  • the back plate includes a first connection end relatively close to the brush rod and a second connection end relatively far away from the brush rod, and the back plate is connected to the hair transplanting board through the first connection end and/or the second connection end;
  • the soft rubber part is filled in the filling groove, and the soft rubber part covers at least part of the peripheral side of the back plate and the hair grafting board.
  • an electric toothbrush which includes a brush head and a brush handle assembly.
  • the brush head includes a brush rod, a brush plate, and a soft rubber part.
  • the brush rod has a length direction;
  • the brush plate includes a hair transplanting plate and a back plate, and at least one of the back plate and the hair transplanting plate is connected to the brush rod;
  • the hair transplanting plate includes a hair transplanting surface and a back side arranged oppositely, and the hair transplanting board also includes a hair transplanting surface and a back surface.
  • the bristles extend from the hair-planting surface; the back plate is arranged on the side of the hair-planting plate away from the bristles, and part of the back plate is spaced from the back to form a filling groove, and along the length direction,
  • the back plate includes a first connection end relatively close to the brush rod and a second connection end relatively far away from the brush rod.
  • the back plate is connected to the hair grafting board through the first connection end and/or the second connection end; the soft rubber parts are filled in the filling groove. And the soft rubber parts cover at least part of the peripheral sides of the back plate and the hair transplanting plate; the brush handle assembly and the brush head are detachably connected.
  • the brush head and the electric toothbrush of the embodiment of the present application are provided with a filling groove by setting a part of the back plate and the back side of the hair planting plate at intervals, and further providing a soft rubber member to cover the back plate and fill the filling groove, the soft rubber member also covers the back side, and the soft rubber at least covers a circle of area on the circumferential side close to the back side, so that the brush head of the embodiment has two effects:
  • the brush head covers the back plate and the back of the hair transplantation plate
  • the back of the brush head is in contact with the user's mouth through the soft rubber piece
  • the soft plastic piece also covers at least the back side of the hair transplantation plate.
  • a circle area on the peripheral side close to the back. Therefore, the peripheral side of the brush head is in contact with the user's oral cavity through the soft rubber piece, while the front side of the brush head is in contact with the user's oral cavity through the bristles.
  • the brush head except for the front side where the bristles are located, is almost all connected to the user's mouth through soft rubber parts.
  • the material of the soft plastic parts is relatively soft and prone to elastic deformation, it can have a better cushioning effect and effectively protect the user's mouth;
  • the filling groove and the soft plastic part are The rubber parts restrict each other so that the soft rubber parts cannot loosen along the thickness direction of the brush plate and break away from the brush plate. Furthermore, since the soft rubber part covers at least a circle of area on the peripheral side close to the back, the peripheral side of the grafting plate and the soft rubber part also restrict each other, so that the soft rubber part cannot move along the plane of the brush plate. Loose in any direction and separate from the brush plate.
  • the soft plastic parts can be injection molded on the brush plate to fill the above-mentioned filling groove and cover the back plate, back surface and surrounding sides.
  • the soft plastic parts have a stronger bonding strength with the back plate and hair transplanting board. . Therefore, there is better connection stability between the soft rubber part and the brush head.
  • Figure 1 is a schematic structural diagram of an electric toothbrush in an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a brush head in an embodiment of the present application.
  • Figure 3 is an exploded schematic view of the brush head shown in Figure 2;
  • Figure 4 is a schematic structural diagram of the brush head shown in Figure 2 from another perspective;
  • Figure 5 is a cross-sectional view of the brush head in Figure 4 along the D-D section;
  • FIG6 is an enlarged schematic diagram of the structure of portion A in FIG5 ;
  • Figure 7 is an exploded schematic diagram of a partial structure of the brush head shown in Figure 2;
  • Figure 8 is a schematic structural diagram of the soft rubber part in the brush head shown in Figure 2;
  • Figure 9 is a schematic structural diagram of the soft plastic component shown in Figure 8 from another perspective;
  • Figure 10 is a cross-sectional view of the soft plastic part in Figure 9 along the F-F section;
  • FIG 11 is a schematic structural diagram of another embodiment of the brush plate in the brush head shown in Figure 2 of the present application.
  • Figure 12 is a schematic structural diagram of another embodiment of the brush plate in the brush head shown in Figure 2 of the present application.
  • Figure 13 is a schematic structural diagram of another embodiment of the brush plate in the brush head shown in Figure 2 of the present application.
  • Figure 14 is a schematic structural diagram of a brush head according to another embodiment of the present application.
  • Figure 15 is an exploded structural diagram of the brush head in the embodiment of Figure 14;
  • Figure 16 is a partial structural diagram of the brush head in the embodiment shown in Figure 14
  • Figure 17 is a schematic diagram of the exploded structure of the brush head when the joint part of the brush head in Figure 14 has a stepped structure;
  • Figure 18 is a partial structural schematic diagram of the brush head in the embodiment of Figure 14 when the connecting portion is a rib structure;
  • Figure 19 is a schematic structural diagram of an embodiment of the soft rubber part in the brush head in Figure 14;
  • Figure 20 is a schematic structural diagram of another part of the brush head in Figure 14;
  • Figure 21 is a schematic front view of a brush head according to another embodiment of the present application.
  • Figure 22 is a schematic cross-sectional view of the brush filaments that constitute an embodiment of the friction-increasing clusters in the brush head shown in Figure 21;
  • Figure 23 is a schematic cross-sectional view of another embodiment of brush filaments that form friction-increasing clusters in the brush head shown in Figure 21;
  • Figure 24 is a schematic cross-sectional view of another embodiment of the brush filaments that form the friction-increasing clusters in the brush head shown in Figure 21;
  • Figure 25 is a schematic cross-sectional view of another embodiment of the brush filaments that form the friction-increasing clusters in the brush head shown in Figure 21;
  • Figure 26 is a schematic side view of the brush head shown in Figure 21;
  • Figure 27 is an exploded structural diagram of a brush head according to another embodiment of the present application.
  • Figure 28 is a perspective view of the brush head shown in Figure 27;
  • Figure 29 is a perspective view of the brush head shown in Figure 27 from another perspective;
  • Figure 30 is a front view of the brush head shown in Figure 27;
  • Figure 31 is a side view of the brush head shown in Figure 27;
  • FIG32 is a three-dimensional view of the brush head shown in FIG27 from another perspective
  • Figure 33 is a schematic three-dimensional structural diagram of a brush head according to yet another embodiment of the present application.
  • Figure 34 is a schematic three-dimensional structural diagram of the hair transplanting plate in the brush head shown in Figure 33;
  • Fig. 35 is a front view of the hair grafting plate in the brush head shown in Fig. 33.
  • an embodiment of the present application discloses an electric toothbrush 100 .
  • the electric toothbrush 100 includes a brush handle assembly 20 and a brush head 10 detachably connected to the brush handle assembly 20 .
  • the brush handle assembly 20 includes a brush handle 21 and components such as a circuit board 22 , a battery 23 , and a motor 24 arranged in the brush handle 21 .
  • the battery 23 supplies power to the circuit board 22, the motor 24, and the like.
  • the circuit board 22 is used to control the movement of the motor 24 .
  • the output shaft of the motor 24 is transmitted out of the brush handle 21 to be connected with the brush handle 21 and drive the brush head 10 to vibrate, so that the user's oral cavity is cleaned through the vibrating brush head 10 .
  • the vibration frequency when the motor 24 drives the brush head 10 to vibrate is relatively high.
  • the vibration frequency ranges from 10,000 to 40,000 times/minute.
  • the material of the brush head 10 is relatively hard and the brush head 10 hits the teeth or gums, it is easy to cause damage to the teeth or gums due to the user's discomfort.
  • the brush head is covered with soft glue to solve the problem of hard glue brush heads.
  • the bonding force between the soft glue and the hard glue is easy to fail, resulting in soft glue. Problems such as falling off occur.
  • the brush head 10 is detachably connected to the output shaft of the motor 24 to facilitate replacement of brush heads 10 of different models or materials. It can be understood that the brush head 10 of the embodiment of the present application can also be used in manual toothbrushes, which can also reduce the damage caused by the brush head 10 to the oral cavity, especially sensitive teeth or sensitive gums.
  • the brush head 10 includes a brush rod 11 , a brush plate 12 , bristles 13 and a soft rubber part 14 .
  • the brush rod 11 is roughly in the shape of a long strip.
  • the brush rod 11 has a length direction AA.
  • One end of the brush rod 11 is used for detachable connection with the output shaft of the motor 24, and the other end is connected with the brush plate 12.
  • the brush rod 11 makes the brush head 10 integral. It has a certain length so that the brush head 10 can reach various parts of the oral cavity that need to be cleaned.
  • the brush plate 12 has a width direction BB and a thickness direction CC.
  • the width direction BB and the thickness direction CC are perpendicular to the length direction AA.
  • the brush plate 12 includes a hair transplanting plate 121 and a back plate 122.
  • the bristles 13 It is arranged on the hair transplanting board 121.
  • the brush plate 12 is connected to the end of the brush rod 11 away from the output shaft of the motor 24 through at least one of the back plate 122 and the hair transplanting plate 121 .
  • the output shaft of the motor 24 passes through the brush rod 11
  • the vibration energy is transmitted to the hair transplanting plate 121, and then to the back plate 122 and the bristles 13.
  • the output shaft of the motor 24 conducts the vibration energy to the back plate 122 through the brush rod 11 , and then to the hair transplanting plate 121 and the bristles 13 in turn.
  • the output shaft of the motor 24 conducts the vibration energy to the hair transplanting plate 121 and the back plate 122 through the brush rod 11, and then conducts the vibration energy to the bristles 13 through the hair transplanting plate 121.
  • the hair transplanting plate 121 is generally plate-shaped and is used to fix the bristles 13.
  • the hair transplanting plate 121 includes a hair transplanting surface 121a and a back surface 121b arranged oppositely.
  • the bristles 13 extend from the hair transplantation surface 121a, that is, the hair transplantation surface.
  • 121a is a surface for the bristles 13 to penetrate from the inside of the hair transplanting plate 121.
  • the back surface 121b is arranged opposite to the hair transplanting surface 121a and is opposite to the back plate 122.
  • the hair-implanted surface 121a is the surface facing the user's teeth
  • the back surface 121b is the surface facing away from the user's teeth.
  • the hair grafting board 121 also includes a hair grafting surface located on the hair grafting surface.
  • the peripheral side surface 121c between 121a and the back surface 121b.
  • the back plate 122 is disposed on the side of the hair transplanting plate 121 away from the bristles 13, that is, the back plate 122 is opposite to the back side 121b of the hair transplanting plate 121, and a partial area of the back plate 122 is spaced apart from the back side 121b to form the filling groove 12a.
  • the filling groove 12a is used for filling the soft rubber part 14 therein, so as to improve the connection stability between the soft rubber part 14 and the brush plate 12.
  • the back plate 122 includes a first connection end 1221 relatively close to the brush rod 11 and a second connection end 1222 relatively far away from the brush rod 11 .
  • the back plate 122 is connected through the first connection end 1221 and the second connection end 1222 . At least one end of the ends 1222 is connected to the hair transplanting plate 121, so that the back plate 122 and the hair transplanting plate 121 are fixedly connected.
  • the soft plastic member 14 covers the back panel 122 so that the entire back panel 122 does not leak.
  • the back of the brush head 10 is in contact with the user's oral cavity, such as teeth or gums, through the soft rubber member 14 instead of the back plate 122.
  • the rubber piece 14 is made of soft material and is prone to elastic deformation. Therefore, it can have a good cushioning effect and effectively protect the user's oral cavity.
  • the soft rubber part 14 is also filled in the filling groove 12a, and the soft rubber part 14 also covers the back plate 122, thereby increasing the connection between the soft rubber part 14, the hair transplanting plate 121 and the back plate 122. area, increase the overall connection stability between the soft rubber part 14 and the brush plate 12, and reduce the risk of the soft rubber part 14 falling off from the brush plate 12.
  • the soft rubber member 14 at least covers at least part of the peripheral side 121 c of the hair transplanting plate 121 .
  • the peripheral side 121 c of the brush head 10 is also at least partially connected to the user's oral cavity such as teeth through the soft rubber member 14 . Or gum contact, rather than direct contact with the user's mouth through the peripheral side 121c.
  • the material of the soft rubber part 14 is relatively soft and prone to elastic deformation, it can have a better cushioning effect and effectively protect the user's oral cavity.
  • the soft rubber part 14 can wrap part of the peripheral side 121c in a circle or wrap the entire peripheral side 121c, which can increase the contact area between the soft rubber part 14 and the peripheral side 121c of the hair transplanting plate 121, thereby improving the soft rubber part 14
  • the connection stability with the hair transplanting plate 121 prevents the soft rubber part 14 from falling off from the brush plate 12 .
  • the filling groove 12a is constructed by arranging the partial area of the back plate 122 and the back surface 121b of the hair grafting plate 121 at intervals, and by further arranging the soft plastic part 14, the back plate 122 is covered and filled into the filling groove. 12a, the soft rubber piece 14 also covers the back side 121b, and the soft rubber covers at least part of the peripheral side surface 121c, so that the brush head 10 of this embodiment has two effects:
  • the soft rubber part 14 covers the back plate 122 and the back 121b of the hair transplanting plate 121, the back of the brush head 10 is in contact with the user's mouth through the soft rubber part 14, and the soft rubber part 14 also covers at least part of the peripheral side 121c of the hair transplanting plate 121. Therefore, the peripheral side of the brush head 10 is in contact with the user's oral cavity through the soft rubber part 14, and the front side of the brush head 10 is in contact with the user's oral cavity through the bristles 13.
  • the hair transplanting plate 121 is almost not in contact with the user's oral cavity, and the back plate 122 is not in contact with the user's oral cavity.
  • the brush head 10 is almost entirely in contact with the user's oral cavity except for the front side where the bristles 13 are located.
  • the soft rubber part 14 is in contact with the user's oral cavity. Since the soft rubber part 14 is made of soft material and is prone to elastic deformation, it can have a better cushioning effect and effectively protect the user's oral cavity;
  • the soft rubber part 14 is filled in the filling groove 12a, and the filling groove 12a is the space between the back plate 122 and the hair transplanting plate 121 along the thickness direction CC of the brush plate 12 Therefore, the filling groove 12 a and the soft rubber part 14 are mutually restricted, so that the soft rubber part 14 cannot loosen along the thickness direction CC of the brush plate 12 and break away from the brush plate 12 . Furthermore, since the soft rubber part 14 covers at least part of the peripheral side surface 121c, the peripheral side surface 121c of the hair transplanting plate 121 and the soft rubber part 14 also restrict each other, so that the soft rubber part 14 cannot move along the plane where the brush plate 12 is located.
  • the soft rubber part 14 can be injection molded on the brush plate 12 to fill the above-mentioned filling groove 12a and cover the back plate 122, the back surface 121b and at least part of the peripheral side 121c.
  • the soft rubber part 14, the back plate 122 and the hair grafting board 121 has stronger bonding strength. Therefore, the soft rubber part 14 and the brush head 10 have better connection stability, and even if the brush head 10 is used for a long time in a high-frequency vibration scenario, it will not easily fall off from the brush plate 12 .
  • the filling groove 12a penetrates the brush plate 12 along the width direction BB to form two opposite filling grooves 12b in the width direction BB.
  • the filling grooves 12b are used for injection molding.
  • the soft glue flows into the filling groove 12a and forms a first filling part 141.
  • the soft part 14 includes the first filling part 141.
  • the filling grooves 12b communicate with the inside of the filling groove 12a.
  • the liquid soft rubber flows into the filling groove 12a along the filling groove 12b and fills the filling groove 12a.
  • the soft glue part in the filling groove 12a forms a first filling part 141.
  • the first filling part 141 is sandwiched between the hair transplanting plate 121 and the back plate 122, and is protected by the hair transplanting plate 121 and the back plate 122. of system about.
  • the first filling part 141 can be directly connected to the groove wall of the filling groove 12a, thereby increasing the connection stability between the first filling part 141 and the brush plate 12, and the first filling part 141 is integrated with other parts of the soft plastic part 14 Injection molding can therefore enhance the connection stability between the entire soft part 14 and the brush plate 12 .
  • the speed of the liquid soft glue flowing into the filling groove 12a can be accelerated.
  • the two opposite filling slots 12b can allow the liquid soft glue to flow between the two filling slots 12b, so that the liquid soft glue can fill the filling slot 12a. If only one filling slot 12b is provided, when the glue is injected through the filling slot 12b, due to the surface tension of the liquid colloid, the liquid soft glue may directly block the filling slot 12b, causing the air in the filling slot 12a to be unable to discharge, eventually causing the liquid soft glue to be unable to completely fill the filling tank 12a. Two or more interconnected filling slots 12b can avoid this problem.
  • the liquid soft glue will cover the peripheral side 121c at the same time or after filling the filling groove 12a, which can not only inject glue into the filling groove 12a, but also realize the coating of the peripheral side 121c.
  • the process and the overall structure are simple and easy to use. forming.
  • filling groove 12a may also penetrate the brush plate 12 in other directions, such as the longitudinal direction AA, to form two opposite filling grooves 12b.
  • the thickness of the soft rubber part 14 at the filling notch 12 b is greater than the thickness at other positions, so as to form an outer soft rubber contour 142 on the back of the brush head 10 .
  • the thickness of the soft rubber part 14 at this position is greater than the thickness at other positions.
  • the brush rod 11 includes a connecting section 111 connected to the brush plate 12 , and the connecting section 111 is connected to at least one of the hair grafting plate 121 and the back plate 122 .
  • the soft rubber piece 14 also covers the connecting section 111 in a ring shape, that is, the soft rubber piece 14 also includes a socket portion 143, and the socket portion 143 is socketed in the connecting section 111. In this way, the soft piece 14 can be prevented from protruding along the radial direction of the brush rod 11 .
  • the socket portion 143 has a socket hole 143 a for the connecting section 111 to pass through.
  • the diameter of the socket hole 143 a is smaller than the width of the brush plate 12 along the width direction BB. Since the brush plate 12 pairs Due to the blocking of the socket part 143, the socket part 143 cannot come out from the connecting section 111 along the length direction AA. Therefore, the connection stability of the soft part 14, the brush plate 12 and the brush rod 11 can be further enhanced.
  • the filling groove 12 a has a first length
  • the hair transplanting plate 121 has a second length
  • the ratio of the first length to the second length is greater than or equal to 1/2.
  • the filling groove 12a and the soft rubber portion filled in the filling groove 12a that is, the aforementioned first filling portion 141, have a longer length, which can not only provide a larger cushioning range, but also increase the first filling area.
  • connection area between the first filling part 141 and the wall of the filling groove 12a that is, the back surface 121b of the hair transplantation plate 121 and the inner wall surface of the back plate 122, thereby enhancing the connection stability between the first filling part 141, the hair transplantation plate 121 and the back plate 122.
  • the longer filling groove 12a can also make the hair transplanting plate 121 and the back plate 122 more susceptible to deformation, thereby being more adaptable to the arc-shaped arrangement structure of the tooth structure, making it easier for the bristles 13 on the hair transplanting plate 121 to fit the user's teeth. Surface, it is helpful to improve the tooth cleaning effect.
  • the maximum thickness of the filling groove 12a is greater than or equal to 2 mm and less than or equal to 5 mm, so that the filling groove 12a has a more appropriate thickness.
  • the thickness of the filling groove 12a is large enough, so that the liquid soft glue filling groove 12a can flow into the filling groove 12a relatively easily and fill the filling groove 12a during injection molding.
  • the maximum thickness of the filling groove 12a is not too large, so that the brush head 10 has a more appropriate overall thickness, which can reduce the foreign body sensation after the brush head 10 is placed in the user's mouth.
  • the maximum thickness of the filling groove 12a is less than 2 mm, it will be difficult for the liquid soft glue to flow into the filling groove 12a and fill the filling groove 12a during injection molding. There is a risk that the filling groove 12a cannot be filled by the soft plastic part 14 and there will be bubbles. And if the maximum thickness of the filling groove 12 a is less than 2 mm, the thickness of the first filling part 141 must also be less than 2 mm, and the first filling part 141 is easily broken, causing the soft piece 14 to easily fall off from the brush plate 12 .
  • the thickness of the filling groove 12a is too large, and the thickness of the bristle plate 121 and the back plate 122 need to be added as the overall thickness of the brush head 10.
  • the overall thickness of the brush head 10 is too large, and the user needs to open his mouth wide when the brush head 10 enters the mouth, which brings inconvenience to use.
  • a brush head 10 that is too thick will increase the foreign body sensation in the user's mouth, and it will be more difficult to move, resulting in a decrease in the overall brushing comfort.
  • the back plate 122 has a first width
  • the hair transplanting plate 121 has a first width.
  • the first width is smaller than the second width, that is, the width of the back plate 122 is smaller than the width of the hair transplanting plate 121 .
  • the opening of the aforementioned filling slot 12b is larger, which makes it easier for the liquid colloid to flow into the filling slot 12a during injection molding, and can make the filling slot 12b have more soft glue, which has a better cushioning effect.
  • the back plate 122 has a first thickness
  • the hair transplanting plate 121 has a second thickness
  • the first thickness is smaller than the second thickness, that is, the back plate 122
  • the thickness is smaller than the thickness of the hair transplanting plate 121.
  • the roots of the bristles 13 can be implanted deeper and longer into the hair transplanting plate 121, thereby improving the connection stability between the bristles 13 and the hair transplanting plate 121.
  • the thickness of the back plate 122 is thinner than that of the hair transplanting plate 121, which can effectively reduce the overall thickness of the brush head 10 and reduce the user's foreign body feeling and discomfort when brushing teeth.
  • the thickness of the brush plate 12 (that is, the total thickness of the hair transplanting plate 121, the filling groove 12a and the back plate 122) is greater than or equal to 3.5 mm, and less than or equal to less than 7 mm, so that the brush plate 12 has a more appropriate thickness.
  • the thicknesses of the hair transplanting plate 121, the filling groove 12a and the back plate 122 can be reasonably distributed, so that the hair transplanting plate 121 has a thicker thickness to fix the bristles 13, so that the filling groove 12a has a thicker thickness to fill.
  • the first filling part 141 makes the back plate 122 have strong strength and is not easy to break.
  • the thickness of the brush plate 12 is not too large, and the total thickness of the soft rubber part 14 and the brush plate 12 is not too large to affect the comfort of brushing teeth.
  • the thickness of the brush plate 12 is less than 3.5 mm, the overall thickness of the brush plate 12 is too thin, and at least one of the thicknesses of the hair transplanting plate 121, the filling groove 12a and the back plate 122 is too thin. If the thickness of the hair transplanting plate 121 is too thin, not only will it be inconvenient for hair transplantation, but the difficulty of the hair transplantation process will increase dramatically, and the fixation performance of the bristles 13 will decrease after hair transplantation.
  • the thickness of the filling groove 12a is too thin, it is inconvenient to fill the first filling part 141, which may cause the liquid colloid to be unable to fill the filling groove 12a or cause the thickness of the first filling part 141 to be too thin, thereby reducing the friction between the soft rubber part 14 and the brush plate 12. Connection stability. If the thickness of the back plate 122 is too thin, the strength of the back plate 122 is insufficient and it is easy to break.
  • the thickness of the brush plate 12 is greater than 7 mm, the thickness of the brush plate 12 is too large, so that the total thickness of the soft rubber part 14 and the brush plate 12 is too large, and the foreign body sensation and brushing discomfort will increase.
  • the hair-planted surface 121a protrudes from the soft rubber component 14 relative to the soft rubber component 14, so that the peripheral side surface 121c is partially exposed to the soft rubber component. 14.
  • the soft rubber part 14 only wraps a part of the peripheral side 121c of the hair transplantation plate 121 close to the back 121b, and the area of the peripheral side 121c close to the hair transplantation surface 121a is not wrapped by the soft rubber part 14, that is, the soft rubber part 14 is not wrapped.
  • the entire peripheral side 121c is included, and part of the peripheral side 121c and the hair transplanted surface 121a are exposed to the soft rubber part 14. In this way, during the injection molding process, the liquid colloid will not flow onto the hair transplanted surface 121a and block the pores 121d, affecting hair transplantation.
  • the back plate 122 is connected to the hair transplanting plate 121 through the first connection end 1221 and the second connection end 1222 at the same time, and the filling groove 12a is formed at the first connection end 1221 and the second connection end 1222.
  • the two ends of the back plate 122 are connected to the hair transplanting plate 121 to achieve multi-point connection, which can enhance the connection stability between the back plate 122 and the hair transplanting plate 121.
  • first connecting end 1221 and the second connecting end 1222 are arranged sequentially along the length direction AA, the first filling part 141 is arranged in the filling groove 12a, and the first connecting end 1221 and the second connecting end 1222 can block the first filling part 141 Move along the length direction AA, thereby improving the connection stability between the soft rubber part 14 and the brush plate 12 .
  • the back plate 122 is connected to the hair transplanting plate 121 through the first connection end 1221, the second connection end 1222 is provided in the air, and a filling slot 12b is formed between the second connection end 1222 and the back surface 121b.
  • the filling groove 12a penetrates the brush plate 12 along the width direction BB to form two opposite filling grooves 12b.
  • the back plate 122 No other position is connected to the hair transplanting plate 121 to form the filling groove 12a.
  • the filling groove 12a is formed on other sides of the filling groove 12b. In this way, it is easier to fill the liquid soft glue more quickly and fully. in the filling groove 12a.
  • the back plate 122 is connected to the hair transplanting plate 121 through the second connection end 1222, the first connection end 1221 is provided in the air, and a filling slot 12b is formed between the first connection end 1221 and the back surface 121b.
  • the filling groove 12a penetrates the brush plate 12 along the width direction BB to form two opposite filling grooves 12b.
  • the back plate 122 No other position is connected to the hair transplanting plate 121 to form the filling groove 12a.
  • the filling groove 12a is formed on other sides of the filling groove 12b. In this way, it is easier to fill the liquid soft glue more quickly and fully. in the filling groove 12a.
  • the brush plate 12 further includes one or more connecting parts 123 .
  • the connecting parts 123 are disposed in the filling groove 12 a and connect the back surface 121 b and the back plate 122 . Connecting the back plate 122 and the hair transplanting plate 121 through the connecting portion 123 can further improve the connection strength between the back plate 122 and the hair transplanting plate 121 and reduce the risk of the back plate 122 falling off from the hair transplanting plate 121 .
  • the back plate 122 also extends generally along the length direction AA, when there are multiple connecting parts 123 , the plurality of connecting parts 123 are arranged at intervals along the length direction AA and connect the back plate 122 and the hair transplanting board 121 , that is, multiple connecting parts 123 are arranged along the length direction AA and connect the back plate 122 and the hair transplanting plate 121 in a multi-point manner. In this way, the middle part of the back plate 122 can be supported at multiple points to prevent the back plate 122 from breaking from the middle part.
  • the first connection end 1221 or the second connection end 1222 connected to the hair transplanting plate 121 is more likely to break.
  • One or more connecting parts 123 can disperse the stress on the first connecting end 1221 or the second connecting end 1222, and the back plate 122 is less likely to break relative to the hair transplanting plate 121 and fall off.
  • the plurality of connecting parts 123 can also limit the first filling part 141 filled between the connecting parts 123, thereby stabilizing the first filling part 141 in the filling groove 12a, so that the first filling part 141 has the The soft rubber part 14 is less likely to fall off from the brush plate 12 .
  • the hair transplanting plate 121 and the back plate 122 are integrally formed. This not only simplifies the connection process between the hair transplanting plate 121 and the back plate 122, but also improves the connection between the hair transplanting plate 121 and the back plate 122. connection stability. In addition, the one-piece component has fewer molding times, high processing efficiency, and excellent dimensional consistency.
  • the hair transplanting plate 121 and the brush rod 11 are integrally formed. In this way, the connection process between the hair transplantation plate 121 and the brush rod 11 can not only be simplified, but also the connection stability between the hair transplantation plate 121 and the brush rod 11 can be improved. . In addition, the one-piece component has fewer molding times, high processing efficiency, and excellent dimensional consistency.
  • the back plate 122 and the brush rod 11 are integrally formed. In this way, the connection process between the back plate 122 and the brush rod 11 can not only be simplified, but also the connection stability between the back plate 122 and the brush rod 11 can be improved. . In addition, the one-piece component has fewer molding times, high processing efficiency, and excellent dimensional consistency.
  • the hair transplanting plate 121, the back plate 122 and the brush bar 11 are integrally formed. In this way, the connection process between the hair transplanting plate 121, the back plate 122 and the brush rod 11 can not only be simplified, but also the connection stability between the hair transplanting plate 121, the back plate 122 and the brush rod 11 can be improved. In addition, the one-piece component has fewer molding times, high processing efficiency, and excellent dimensional consistency.
  • the hair transplanting plate 121 and the back plate 122 are provided separately, that is, the hair transplanting plate 121 and the back plate 122 are manufactured separately and then connected, and one of the hair transplanting plates 121 and the back plate 122 is integrally formed with the brush bar 11 , thereby simplifying the connection process between the hair transplanting plate 121 or the back plate 122 and the brush rod 11, and improving the connection process between the hair transplanting plate 121 or the back plate 122 and the brush rod 11. Further, please refer to FIG.
  • the brush head 10 further includes a connecting piece 15 , which is integrally formed with the hair transplanting plate 121 , and at least one of the first connecting end 1221 and the second connecting end 1222 is connected to the hair transplanting plate 121 through the connecting piece 15
  • the hardness of the connection piece 15 and the hair grafting plate 121 is less than or equal to the hardness of the soft rubber piece 14 . In this way, the hair transplanting plate 121 is more likely to elastically deform, so that the bristles 13 on the hair transplanting plate 121 fit the teeth more closely, thereby achieving a better tooth cleaning effect.
  • the hair transplanting plate 121 and the back plate 122 are separate components.
  • the hair transplanting plate 121 is connected to the brush rod 11 as a whole.
  • the back plate 122 is connected to the hair transplanting plate 121 through the connector 15.
  • the connector 15 is a soft plastic piece. 14
  • the hard or connecting piece 15 is made of the same material as the software piece.
  • the hair transplanting plate 121 and the back plate 122 are separate components.
  • the back plate 122 and the brush bar 11 are connected as one body.
  • the hair transplanting plate 121 is an independent component.
  • the hair transplanting plate 121 is connected to the back plate 122 through the connector 15.
  • the connector 15 is relatively soft.
  • the plastic part 14 is hard or the connecting part 15 is made of the same material as the software part.
  • the hair grafting board 121 and the back plate 122 have a split structure and are more flexible in manufacturing.
  • the material of the connecting piece 15 can be selected to be softer and have a better cushioning effect.
  • a plurality of hair transplanting holes 121d are opened on the hair transplanting surface 121a, and the hair transplantation holes 121d are blind holes.
  • the brush head 10 also includes a copper sheet (not shown in the figure), and the roots of the bristles 13 pass through The copper sheet is installed in the hair transplanting hole 121d. That is to say, the hair transplantation holes 121d do not penetrate the hair transplantation plate 121 along the thickness direction CC, and the bristles 13 are fixed on the hair transplantation plate 121 through a copper hair transplantation process. This can make the hair transplantation plate 121 thinner, and the hair transplantation plate 121 overlaps the back plate 122 and soft glue. With the strengthening effect of the component 14, the strength of the overall brush plate 12 can be ensured, and the overall brush head 10 will not be too thick.
  • this embodiment adopts a copper hair transplantation process, which can set as many hair transplantation holes 121d as possible on the hair transplantation surface 121a and implant as many bristles 13 as possible through copper sheets, thereby increasing the hair transplantation density of the same hair transplantation surface 121a, thereby improving the hair transplantation density.
  • the hair transplantation plate 121 and the back plate 122 can be integrally formed, and the hair transplantation plate 121 and the back plate 122 can be simplified.
  • the connection process improves the connection strength between the hair transplanting plate 121 and the back plate 122.
  • a plurality of hair transplanting holes 121d are provided on the hair transplanting surface 121a.
  • the hair transplantation holes 121d are through holes.
  • the roots of the bristles 13 are inserted into the hair transplantation holes 121d, and the parts of the bristles 13 that penetrate the back surface 121b are in contact with the hair transplantation plate.
  • 121 welding welding means melting the part of the bristles 13 that penetrates the back 121b through a blanching process and connecting it to the back 121b of the hair transplanting plate 121), and then fixing the bristles 13 on the hair transplanting plate 121.
  • hair transplanting holes 121d can be provided for hair transplantation.
  • the hair transplantation plate 121 and the back plate can be connected.
  • the plates 122 are connected. Therefore, as many hair transplanting holes 121d as possible can be provided on the hair transplantation surface 121a and as many bristles 13 can be implanted as possible, thereby increasing the density of hair transplantation on the same hair transplantation surface 121a and thus improving the tooth cleaning efficiency of the brush head 10.
  • the hair transplanting holes 11d cannot be provided at the connection position between the hair transplanting plate 121 and the back plate 122, and the part of the bristles 13 that penetrates the back 121b cannot be welded to the hair transplanting plate 121. Resulting in a reduction in hair density.
  • the requirements for the thickness of the hair transplantation plate 121 can be reduced.
  • the hair transplantation plate 121 can be made softer, and the bristles 13 have better floating and cushioning properties.
  • the bristles 13 can better fit the tooth surface, making brushing comfortable. Sex is higher.
  • the peripheral side surface 121c has one or more grooves 121e, and the multiple grooves 121e are arranged at intervals.
  • the two ends of the groove 121e are respectively connected to the hair-planting surface 121a and the back surface 121b.
  • the groove 121e is connected to the filling groove 12a, and the soft rubber part 14 also includes a second filling part 144 filled in the groove 121e. That is, during the injection molding process, the liquid colloid can not only fill the filling groove 12a to form the first filling part 141, but also fill the groove 121e to form the second filling part 144.
  • connection area between the soft rubber part 14 and the hair-planting plate 121 can be increased, but also the connection stability between the soft rubber part 14 and the hair-planting plate 121 can be improved.
  • the groove 121e and the soft rubber part 14 are mutually limited and constrained, which can prevent the soft rubber part 14 from loosening relative to the hair-planting plate 121.
  • the groove 121e can also improve the bending deformation ability of the hair-planting plate 121 and improve the shock-absorbing effect.
  • the groove 121e has a groove cross-section perpendicular to the thickness direction CC of the brush plate 12, and the groove cross-section gradually increases in the direction from the back surface 121b to the hair-planted surface 121a, that is, The cross-section of the groove gradually decreases in the direction from the hair-planted surface 121a to the back surface 121b.
  • the cross-section of the second filling part 144 also gradually decreases in the direction from the hair-planted surface 121a to the back surface 121b.
  • the soft rubber part 14 After covering the peripheral side 121c, the further the soft rubber part 14 moves toward the rear side of the brush head 10, the greater the extent to which the second filling part 144 and the groove wall of the groove 121e squeeze each other, and the soft rubber part 14 and the brush plate 12 The greater the binding force.
  • the peripheral side 121c of the hair transplanting plate 121 includes two sub-sides located on opposite sides of the central axis of the brush rod 11, and each sub-side is provided with a plurality of grooves 121e.
  • the soft rubber part 14 is combined with the hair transplanting plate 121 at multiple positions by filling the plurality of grooves 121e, which can further improve the connection stability between the soft rubber part 14 and the hair transplanting plate 121.
  • the hair transplanting plate 121 includes a free end located away from the brush rod 11.
  • the groove size of the groove 121e near the free end is smaller than the groove size of the groove 121e located in the middle of the side.
  • the groove size of the groove 121e is larger, which can make the hair grafting plate 121 easier to deform in the middle area, which is beneficial to improving the cushioning effect.
  • the groove size 121e near the free end is smaller, which is beneficial to leaving more area of the hair transplanting surface 121a, increasing the density of hair transplantation, and improving the tooth cleaning effect.
  • the above content introduces from one aspect the structure of the brush head 10 that can protect the oral cavity and has a firm connection between the soft rubber part 14 and the brush plate 12 .
  • this application can protect the oral cavity, and the structure of the brush head 10 in which the soft rubber part 14 and the brush plate 12 are firmly connected is not limited to this.
  • the brush head 10 also includes a brush rod 11 , a brush plate 12 , bristles 13 and a soft rubber part 14 .
  • the brush plate 12 of this embodiment may be provided with a filling groove 12a, or may not be provided with a filling groove 12a.
  • the brush plate 12 is connected to one end of the brush rod 11 along the length direction AA.
  • the brush plate 12 has a width direction BB and a thickness direction CC, and the width direction BB, the thickness direction CC and the length direction AA are perpendicular to each other.
  • the brush plate 12 has a hair-planted surface 1201 and an outer back surface 1202 arranged oppositely along the thickness direction CC.
  • the outer back surface 1202 is the side of the back plate opposite to the hair-planted surface 1201 in the previous embodiment.
  • the hair-planted surface 1201 is used to set the bristles 13, and the outer back surface 1202 is set opposite to the bristles 13.
  • the peripheral side and the back plate of the hair transplanted board are located on the outer surface between the hair transplanted surface and the outer back surface.
  • the wall portions together constitute the outer peripheral surface 1203 of the brush plate, and the outer peripheral surface 1203 extends from the hair transplanted surface 1201 to the outer back surface 1202 along the thickness direction CC.
  • the outer peripheral surface 1203 is provided with a coupling portion 124 for coupling with the soft rubber piece 14 .
  • the coupling part 124 includes a first step structure 1241 , or, as shown in FIG. 18 , the coupling part 124 includes a ridge structure 1242 , or the coupling part 124 simultaneously includes a first step structure 1241 and Ribbed structure 1242.
  • the difference between the first step structure 1241 and the convex rib structure 1242 is that the first step structure 1241 is convex relative to the outer peripheral surface 1203 area of one side, while the convex rib structure 1242 is convex relative to the outer periphery of both sides.
  • the surface 1203 area is raised. It should be noted that the joint part 124 is mainly used to form a protruding structure on the outer peripheral surface 1203 so that the joint part 124 can be embedded in the soft part 14. In addition to the first step structure 1241 and the rib structure 1242, other similar The structure may also serve as the coupling part 124 of this embodiment.
  • the brush plate 12 is formed by injection molding.
  • the first cross section of the brush plate 12 perpendicular to the thickness direction CC remains unchanged or gradually decreases; along the thickness direction CC and from the joint part 124 pointing to the outer back surface 1202, the brush plate 12
  • the second cross section of the plate 12 perpendicular to the thickness direction CC remains unchanged or gradually decreases.
  • the part between the joining part 124 and the hair transplanting surface 1201 has a plurality of first cross-sections, and from the joining part 124 to the direction of the bristles 13, the first cross-section size does not change or decreases.
  • the portion between the connecting portion 124 and the outer back surface 1202 has a second cross-section, and from the connecting portion 124 to the direction away from the bristles 13, the second cross-sectional size remains unchanged or is reduced.
  • a certain plane where the connecting portion 124 is located can be used as the mold closing surface (the mold closing surface is perpendicular to the thickness direction CC), and the first mold (for example, the upper mold) and the second mold can be passed through the injection molding process.
  • the mold for example, the lower mold
  • the mold is closed at the mold closing surface to form a cavity, and injection liquid is injected into the cavity.
  • the brush plate 12 can be formed.
  • demoulding is performed. Since the first cross-sectional dimension remains unchanged or is reduced, the first mold can be demoulded smoothly. Similarly, since the second cross-sectional dimension remains unchanged or is reduced, the second mold can be demoulded smoothly. mold.
  • the brush plate 12 can be taken out only after demoulding.
  • the bristles 13 are arranged on the brush plate 12 and extend from the bristle-planting surface 1201 , that is, the roots of the bristle 13 are embedded in the brush plate 12 and extend out of the brush plate 12 from the bristle-planting surface 1201 .
  • the bristles 13 can be arranged on the brush plate 12 through a copper hair transplantation process or a copper-free hair transplantation process.
  • the soft rubber part 14 is injection molded outside the brush plate 12 and connected with the brush plate 12 . Specifically, after the brush plate 12 is formed through the injection molding process, the soft rubber part 14 can be further injected outside the brush plate 12 through a secondary injection molding process or a two-color injection molding process, and at the same time, the soft rubber part 14 and the brush plate 12 can be connected. Connect with each other.
  • the soft rubber part 14 is coated on the outer back surface 1202 and the outer peripheral surface 1203 of the brush plate 12, so that the connection area between the soft rubber part 14 and the brush plate 12 can be increased, and the connection stability between the soft rubber part 14 and the brush plate 12 can be enhanced.
  • the outer back surface 1202 of the brush plate 12 prevents the soft rubber part 14 from detaching in the direction close to the bristles 13, and the outer peripheral surface 1203 of the brush plate 12 prevents the soft rubber part 14 from moving laterally (the transverse direction is any direction perpendicular to the thickness direction CC) and detaching from the brush plate 12.
  • the soft rubber part 14 covers the outer peripheral surface 1203 and the coupling part 124 is disposed on the outer peripheral surface 1203, the soft rubber part 14 also covers the joint part 124. Specifically, please refer to FIG. 19 .
  • the soft rubber part 14 has an inner peripheral surface 14 a that is opposite to the outer peripheral surface 1203 .
  • the inner peripheral surface 14 a forms a mating groove 14 b due to the presence of the coupling portion 124 during the injection molding process of the soft rubber part 14 .
  • the combining part 124 is embedded in the fitting groove 14b, so that the combining part 124 and the fitting groove 14b are nested and matched.
  • the soft part 14 can be prevented from being separated from the brush plate 12 in the direction closer to or away from the bristles 13 along the thickness direction CC, but also the soft part 14 can be prevented from moving laterally away from the brush plate 12, and the connection between the soft part 14 and the brush can be further strengthened. Connection stability between boards 12. Even if the brush head 10 is in a humid environment for a long time, it can be ensured that the soft part 14 will not detach from the brush plate 12 .
  • the soft part 14 is injection molded outside the brush plate 12, and a tight connection between the soft part 14 and the brush plate 12 is achieved during the injection molding process. Furthermore, the soft rubber part 14 is covered on the outer back surface 1202 and the outer peripheral surface 1203 of the brush plate 12, which can increase the connection area between the soft rubber part 14 and the brush plate 12, and strengthen the connection between the soft rubber part 14 and the brush plate 12. stability. Specifically, the outer back surface 1202 of the brush plate 12 prevents the soft rubber part 14 from detaching in the direction closer to the bristles 13 , and the outer peripheral surface 1203 of the brush plate 12 blocks the soft rubber part 14 from moving laterally and detaching from the brush plate 12 .
  • the coupling portion 124 includes at least one of a first step structure 1241 and a ridge structure 1242 , and the soft rubber piece 14 is covered on the coupling portion 124 .
  • the soft part 14 can be prevented from being separated from the brush plate 12 in the direction closer to or away from the bristles 13 along the thickness direction CC, but also the soft part 14 can be prevented from moving laterally away from the brush plate 12, and the connection between the soft part 14 and the brush can be further strengthened. Connection stability between boards 12. Even if the brush head 10 is in a humid environment for a long time, it will It can be ensured that the soft rubber part 14 will not detach from the brush plate 12 .
  • the first cross section of the brush plate 12 perpendicular to the thickness direction CC remains unchanged or gradually decreases; along the thickness direction CC and from the joint part 124 points to the outer back surface 1202 , the second cross-section perpendicular to the thickness direction CC of the brush plate 12 remains unchanged or gradually decreases.
  • a certain plane where the connecting portion 124 is located can be used as the mold closing surface, and the first mold (such as the upper mold) and the second mold (such as the lower mold) can be used to form the mold closing surface. The mold is closed to form a cavity, and injection liquid is injected into the cavity.
  • the brush plate 12 After the injection liquid solidifies, the brush plate 12 can be formed. In the subsequent demoulding process, since the first cross-sectional dimension remains unchanged or is reduced, the first mold can be demoulded smoothly. Similarly, since the second cross-sectional dimension remains unchanged or is reduced, the second mold can be demoulded smoothly. The mold was released smoothly. The brush plate 12 can be taken out only after demolding.
  • the brush plate 12 is divided into a first section 12a1 and a second section 12a2 along the thickness direction CC by the connecting portion 124.
  • the first section 12a1 has a first cross-section
  • the second section 12a2 has a second section.
  • Two cross-sections, the first cross-section is smaller than the second cross-section, so as to form a first step structure 1241 on the outer peripheral surface 1203, and the first step structure 1241, the first step structure 1241 has a first step surface 1243, the first step surface 1243 is arranged toward the hair transplanting surface 1201.
  • the connecting portion 124 is arranged around the outer peripheral surface 1203. In this way, the soft rubber part 14 and the connecting portion 124 form a circle of inverted structure, which has a better inverted effect and the soft rubber part 14 is less likely to detach from the brush plate 12.
  • the first section 12a1 has a hair-planted surface 1201
  • the second section 12a2 has an outer back surface 1202
  • the outer peripheral surface 1203 has a groove 1205.
  • the groove 1205 extends from the matted surface 1201 to the outer back surface 1202 . Due to the existence of the groove 1205, during the process of injection molding the soft plastic part 14, the injection liquid will fill the groove 1205 and form the convex part 1401.
  • the convex part 1401 is embedded in the groove 1205 and combined with the groove wall of the groove 1205. In this way, the connection area between the soft rubber part 14 and the brush plate 12 can be increased, and the connection stability between the soft rubber part 14 and the brush plate 12 can be further enhanced.
  • the cross section of the groove 1205 perpendicular to the thickness direction CC remains unchanged, or the mold-joining surface of the first mold and the second mold corresponds to the minimum cross-section of the groove, pointing from the minimum cross-section to the hair transplanting surface 1201, and the cross-section of the groove 1205 gradually increases, and points from the minimum cross-section to the hair transplanting surface 1201.
  • the cross-section of the groove 1205 also gradually increases. In this way, it is convenient for the first mold and the second mold to move away from each other for demolding without being hindered by the groove 1205 .
  • the groove 1205 is provided in the first section 12a1 and penetrates to the hair transplanted surface 12e along the thickness direction CC.
  • the groove 1205 provided on the first section 12a1 can penetrate from the bonding portion 124 to the hair transplanting surface 1201 along the thickness direction CC, and can be directed from the bonding portion 124 to the hair transplanting surface 1201 along the thickness direction CC.
  • the lateral direction of the groove 1205 The cross-sectional area gradually increases, that is, the groove 1205 is only formed on the first section 12a1, and the groove 1205 is a blind groove (not penetrating to the outer back surface 1202).
  • the first mold in order to form the groove 1205, the first mold needs to have a protrusion corresponding to the groove 1205. Therefore, the cross-section of the groove 1205 is set to gradually increase in cross-sectional area in the direction closer to the hair transplanting surface 1201. This facilitates the protrusion on the first mold to escape from the groove 1205 during demolding.
  • the injection liquid will fill the groove 1205 and form the convex part 1401.
  • the convex part 1401 is embedded in the groove 1205 and combined with the groove wall of the groove 1205.
  • the groove 1205 is configured to gradually increase in cross-sectional area in the direction closer to the hair transplanting surface 1201, the cross-sectional area of the convex portion 1401 also gradually increases in the direction closer to the hair transplantation surface 1201. In this way, in the soft plastic part When the brush 14 moves away from the brush bristles 13 , the convex portion 1401 and the groove 1205 also form an undercut, which can further prevent the soft rubber piece 14 from detaching from the brush plate 12 .
  • the groove 1205 may not penetrate from the coupling part 124 along the thickness direction CC to the hair transplanting surface 1201, but may penetrate from any position between the coupling part 124 and the hair transplantation surface 1201, along the thickness direction CC to the hair transplantation surface 1201, The above effects can also be achieved.
  • the brush rod 11 and the brush plate 12 are integrally injection molded.
  • the brush rod 11 has a center plane D perpendicular to the thickness direction CC.
  • the joint 124 has a maximum cross section perpendicular to the thickness direction CC.
  • the maximum cross section is coplanar with the center plane D.
  • the brush rod 11 is generally cylindrical.
  • the brush rod 11 has a maximum cross section at the center plane D. Therefore, the maximum cross section of the brush rod 11 is equal to the maximum cross section of the brush plate 12.
  • the surfaces are coplanar, and the maximum cross-section of the brush rod 11 and the brush plate 12 is used as the mold surface. In this way, the brush rod 11 and the brush plate 12 can be integrally injection molded, and it is convenient to demould the first mold and the second mold.
  • the first section 12a1 has a first thickness D1 along the thickness direction CC
  • the second section 12a2 has a second thickness D2 along the thickness direction CC
  • the first thickness D1 is smaller than the second thickness D2.
  • the connecting part 124 can be made closer to the hair transplanting surface 1201 relative to the outer back surface 1202
  • the soft rubber member 14 can cover more of the second section 12a2, and the combined area with the second section 12a2 can be larger, and the second section 12a2 can be more flexible.
  • the soft rubber piece 14 is effectively prevented from falling off from the brush plate 12 in a direction away from the bristles 13 .
  • the soft rubber member 14 further includes a sleeve portion 143 , and the sleeve portion 143 is annularly sleeved on the brush rod 11 .
  • the soft rubber part 14 can be prevented from detaching from the brush bar 11. If the soft rubber part 14 cannot be detached from the brush bar 11, it will be more difficult for the soft rubber part 14 to detach from the brush plate 12. Therefore, the soft rubber can be indirectly strengthened. The connection stability between the component 14 and the brush plate 12 is improved.
  • the socket portion 143 has a socket hole 143a for the brush rod 11 to pass through.
  • the diameter of the socket hole 143a is smaller than the width of the brush plate 12 along the width direction BB. Since the brush plate is 12. Due to the blocking of the socket part 143, the socket part 143 cannot come out from the brush rod 11 along the length direction AA. Therefore, the connection stability of the soft part 14, the brush plate 12 and the brush rod 11 can be further enhanced.
  • the socket portion 143 is socketed at a section of the brush rod 11 close to the brush plate 12 (that is, the second rod section 11b described below), and the socket portion 143 is connected along the The length L1 in the longitudinal direction AA is less than or equal to 20 mm, so that the brush rod 11 is partially exposed to the soft rubber part 14 . That is to say, the socket portion 143 does not completely wrap the brush rod 11 , and a section of the brush rod 11 away from the brush plate 12 is not socketed by the socket portion 143 .
  • the socket part 143 completely wraps the brush rod 11, after the entrance of the brush head 10, except for the bristle planting surface 1201 where the bristles 13 are located, all other areas of the brush head 10 will pass through.
  • the soft rubber part 14 is in contact with the user's oral mucosa, which not only makes it difficult for the brush head 10 to move in the oral cavity, but also causes discomfort to the user.
  • a section of the brush rod 11 away from the brush plate 12 is not socketed by the socket portion 143 .
  • the brush rod 11 includes a first rod segment 11a and a second rod segment 11b.
  • the first rod segment 11a is connected to the brush plate 12 through the second rod segment 11b.
  • the cross section of the first rod segment 11a perpendicular to the length direction AA is larger than the cross section of the second rod segment 11b perpendicular to the length direction AA.
  • the diameter of the first rod segment 11a is smaller than the diameter of the second rod segment 11b, so that a second step structure 11c is formed between the first rod segment 11a and the second rod segment 11b.
  • the second step structure 11c has a second step surface 11c1 disposed toward the brush plate 12.
  • the sleeve portion 143 is sleeved outside the second rod segment 11b and abuts against the second step surface 11c1 of the second step structure 11c. In this way, after the sleeve portion 143 wraps around the second rod segment 11b, the sleeve portion 143 can be flush or nearly flush with the surface of the first rod segment 11a, and the edge of the sleeve portion 143 close to the first rod segment 11a will not protrude too much relative to the surface of the first rod segment 11a, thereby avoiding the problem that the edge of the sleeve portion 143 is subjected to force (for example, the soft rubber part 14 is subjected to the force of the oral cavity when brushing teeth) and is lifted up and wrapped around the first rod segment 11a.
  • force for example, the soft rubber part 14 is subjected to the force of the oral cavity when brushing teeth
  • the maximum cross-section perpendicular to the thickness direction CC of the second step structure 11 c is coplanar with the mid-section plane D. That is to say, the second step structure 11c is bounded by the middle plane D, and on both sides away from the middle plane D, there is no undercut structure or obstacle that hinders the demoulding of the first mold and the second mold, ensuring that the first mold and The second mold can be demoulded smoothly.
  • a plurality of hair transplanting holes are opened on the hair transplantation surface 121a, and the hair transplantation holes are blind holes.
  • the brush head 10 also includes copper piece (not shown in the figure), and the roots of the bristles 13 are installed in the hair transplanting holes through the copper piece. That is to say, the hair transplantation holes do not penetrate the brush plate 12 along the thickness direction CC, and the bristles 13 are fixed on the brush plate 12 through a copper hair transplantation process. In this way, after the brush rod 11 and the brush plate 12 are integrally formed, the soft rubber part 14 is directly injected outside the brush plate 12, and then the roots of the bristles 13 are fixed in the hair planting holes through copper sheets. The process is reliable and simple.
  • a through hole needs to be formed when the brush plate 12 is formed.
  • the bristles 13 need to be passed through the through hole and ironed on the outer back side 1202 of the brush plate 12, and one end of the bristles 13 is welded to the brush plate 12. The process is relatively complicated and the cost is relatively high.
  • the soft plastic part 14 coated on the outer peripheral surface 1203 does not extend beyond the hair-planting surface 1201. In this way, during the injection molding process of the soft plastic part 14, the injection liquid will not flow onto the hair-planting surface 1201, thereby preventing the bristles 13 from adhering to each other after the injection liquid flows onto the hair-planting surface 1201, thereby reducing the elasticity and freedom of the bristles 13.
  • the distance between the edge of the outer peripheral surface 1203 of the soft rubber member 14 and the connecting portion 124 is no more than 3 mm. In this way, the distance between the edge of the outer peripheral surface 1203 of the soft plastic part 14 and the connecting part 124 is closer, and the binding part 124 has a stronger binding force on the edge of the soft plastic part 14 . If the distance between the edge of the soft plastic part 14 and the connecting part 124 is greater than 3 mm, the distance between the edge of the soft plastic part 14 and the connecting part 124 If the distance is too large, the restraining ability of the joint part 124 to the soft parts will be weakened, which will increase the risk of the soft parts 14 falling off the brush plate 12 .
  • the above content introduces the structural form of the brush head 10 that can protect the oral cavity during use and has a strong structure from two aspects.
  • this application further improves the structure of the bristles to improve the oral cleaning effect.
  • the brush head 10 includes a brush rod 11, a brush plate 12 and bristles 30.
  • the brush rod 11 is along the length direction. M extends, the brush plate 12 is connected to one end of the brush rod 11 in the length direction M, the brush plate 12 has a hair transplanting surface 125, one end of the bristles 30 is connected to the brush plate 12, and the other end of the bristles 30 extends in a direction away from the hair transplanting surface 125,
  • the bristles 30 include friction-increasing tufts 31, and the surface roughness of the friction-increasing tufts 31 is greater than the surface roughness of other bristles 30, so that the friction coefficient between the friction-increasing tufts 31 and the object to be scrubbed is greater than the remaining bristles except the friction-increasing tufts 31. 30 friction coefficient with the same object to be scrubbed.
  • the brush head 10 includes a brush rod 11 , a brush plate 12 and bristles 30 .
  • the brush rod 11 is a component of the brush head 10 used to provide support for the brush plate 12. There is no restriction on the specific material of the brush rod 11. Designers can reasonably select the material of the brush rod 11 according to actual needs.
  • the brush rod 11 extends along the length direction M.
  • the brush rod 11 can be a straight rod, in which case the central axis of the brush rod 11 coincides with the length direction M; the brush rod 11 can also be a curved rod, in which case the brush rods 11 are far away from each other.
  • the line between the two endpoints coincides with the length direction M.
  • the brush plate 12 is a component of the brush head 10 used to carry the bristles 30.
  • the specific shape of the brush plate 12 is not limited here. The designer can reasonably design the shape of the brush plate 12 according to actual needs. For example, the shape of the brush plate 12 The shape may be, but is not limited to, rectangular, circular, oval, etc.
  • the specific preparation material of the brush plate 12 is not limited here, and the designer can also reasonably select the preparation material of the brush plate 12 according to actual needs.
  • the brush plate 12 is connected to one end of the brush rod 11 in the length direction M, that is, the brush plate 12 is connected to the brush rod 11 , and the brush plate 12 extends in a direction parallel to the length direction M and away from the brush rod 11 .
  • the brush plate 12 has a bristle surface 125.
  • the bristle surface 125 may be entirely flat, may be entirely curved, or may be partially flat and the remaining part curved.
  • the bristles 30 are components of the brush head 10 used for cleaning the objects to be scrubbed.
  • the specific materials for the bristles 30 are not limited here. Designers can reasonably select the materials for the bristles 30 according to actual needs.
  • the material for making the bristles 30 may include, but is not limited to, one or more of PA (Polyamide, nylon) and PBT (Polyethylene terephthalate, polydibutyl terephthalate).
  • One end of the bristles 30 is connected to the brush plate 12 , and the other end of the bristles 30 extends in a direction away from the hair transplanting surface 125 .
  • the bristles 30 include friction-increasing tufts 31.
  • the friction-increasing tufts 31 may be composed of mixed brush filaments 311 or a single brush filament 311.
  • the friction-increasing tufts 31 may be formed by mixing brush filaments of different materials, or they may be composed of The brush filaments with different surface roughness of the same material are mixed together.
  • the angle between the extending direction of at least part of the friction-increasing tufts 31 and the hair-planting surface 125 of the brush plate 12 is an acute or obtuse angle, that is, at least part of the friction-increasing tufts 31 are arranged at an angle relative to the hair-planting surface 125 of the brush plate 12 , so that at least part of the friction-increasing tufts 31
  • the free end 3131 (described below) of the friction-increasing tuft 31 is tilted toward the brush rod 11 relative to the root of the friction-increasing tuft 31 , causing the friction-increasing tuft 31 to expand outward and increasing the contact area between the friction-increasing tuft 31 and the user's teeth.
  • the angle between the extending direction of the friction-increasing tufts 31 and the hair-planted surface 125 of the brush plate 12 may be 85 degrees or 95 degrees.
  • the extending direction of the friction-increasing tufts 31 may also be at right angles to the angle between the hair-planting surface 125 of the brush plate 12 , that is, the included angle between the friction-increasing tufts 31 and the hair-planting surface 125 is 90 degrees.
  • the bristle surface 125 of the brush plate 12 is at least partially a curved surface
  • the curved surface is spliced by countless small planes, and each brush filament in the friction-increasing cluster 31 is at least partially aligned with the surface of the curved surface.
  • Each facet is tilted so that at least part of the friction-increasing tufts 31 is tilted relative to the tufted surface 125 .
  • the friction coefficient between the friction-increasing tufts 31 and the object to be scrubbed is greater than the friction coefficient between the other bristles 30 except the friction-increasing tufts 31 and the same object to be scrubbed.
  • the friction-increasing clusters 31 and the friction coefficient between the friction-increasing clusters 31 and the object to be brushed is greater than the friction coefficient between the remaining bristles 30 and the object to be brushed, the user can brush his teeth during the brushing process.
  • the friction force between the friction-increasing clusters 31 and the user's teeth is relatively large, allowing more sufficient friction between the user's teeth and the bristles 30, thereby improving the overall cleaning ability of the brush head 10.
  • the application scenarios of the brush head 10 are different depending on the specific expression of the object to be scrubbed.
  • the brush head 10 is the brush head 10 used on the dishwashing brush; when the object to be brushed is the user's teeth, the brush head 10 is the brush head 10 that should be used on the dishwasher.
  • the brush head 10 is used on a toothbrush; when the object to be scrubbed is a toilet, the brush head 10 is the brush head 10 used on the toilet brush.
  • the following is an example in which the objects to be brushed are the user's teeth and the brush head 10 is applied to a toothbrush.
  • the bristles 30 near the front end of the brush head 10 (the end of the brush plate 12 away from the brush rod 11) will usually contact the user's teeth first, while the bristles 30 near the rear end of the brush head 10 (the end of the brush plate 12 close to the brush rod 11) will contact the user's teeth later.
  • the bristles 30 near the rear end of the brush head 10 are lifted relative to the user's teeth.
  • the bristle surface 125 of the brush plate 12 has a first area 1251 and a second area 1252, the first area 1251 and the second area 1252 are distributed in the length direction M, and the first area 1251 is closer to the brush rod 11 than the second area 1252, and the bristles 30 include a first bristle group 30a and a second bristle group 30b, the first bristle group 30a is arranged in the first area 1251, the first bristle group 30a at least includes a friction-increasing cluster 31, and the second bristle group 30b is arranged in the second area 1252.
  • the first bristle group 30a at least includes a friction-increasing cluster 31, so that the friction coefficient between the first bristle group 30a located at the rear end of the brush head 10 and the user's teeth can be increased, so when the user brushes his teeth, the friction between the first bristle group 30a and the user's teeth can be increased, thereby improving the overall cleaning ability of the brush head 10.
  • the friction coefficient between the friction-increasing tufts 31 and the user's teeth is greater than the friction coefficient between the other bristles 30 except the friction-increasing tufts 31 and the user's teeth, in order to make the friction-increasing tufts 31 and the user's teeth There is a large friction coefficient between the user's teeth.
  • the specific forms of the friction-increasing clusters 31 can be, but are not limited to, the following embodiments.
  • the friction-increasing cluster 31 includes a brush filament 311 and a friction structure 312.
  • the outer surface 3111 of the brush filament is provided with a friction structure 312, and the friction structure 312 protrudes from the outer surface of the brush filament. 3111.
  • the friction structure 312 may be a protrusion disposed on the outer surface 3111 of the brush filament.
  • the specific shape of the protrusion is not limited here.
  • the protrusion may be a hemispherical protrusion or may be a protrusion surrounding the brush filament 311. Axially arranged annular protrusions.
  • the friction structure 312 on the outer surface 3111 of the brush filament the roughness of the outer surface 3111 of the brush filament is increased, thereby increasing the friction coefficient between the friction-increasing cluster 31 and the user's teeth.
  • the outer surface 313 of the friction-increasing clusters is configured into an uneven shape to increase the friction coefficient between the outer surface 313 of the friction-increasing clusters and the user's teeth.
  • the outer surface 313 of the friction-increasing cluster can be made up of multiple sub-planes alone to form an uneven shape, or it can be made up of multiple sub-curved surfaces alone to form an uneven shape, or it can also be made up of multiple sub-planes and multiple sub-curved surfaces to be jointed together to form an uneven shape. Uneven shape.
  • the friction-increasing clusters 31 include a base material 314 and friction-increasing particles 315.
  • the base material 314 and the friction-increasing particles 315 are integrally formed, and the friction-increasing particles 315 are integrated with the user's teeth.
  • the friction coefficient between them is greater than the friction coefficient between the base material 314 and the user's teeth, so as to increase the friction coefficient between the friction-increasing clusters 31 and the user's teeth.
  • the base material 314 and the friction-increasing particles 315 can form an integrated structure through 3D printing, or can also form an integrated structure through injection molding.
  • the friction-increasing particles 315 may include, but are not limited to, calcium carbonate particles.
  • the roughness of the friction-increasing clusters 31 is increased, thereby increasing the friction coefficient between the friction-increasing clusters 31 and the user's teeth.
  • the friction-increasing tuft 31 has a free end 3131 away from the hair transplantation surface 125 of the brush plate 12 and a side wall surface 3132 located between the free end 3131 and the hair transplantation surface 125 .
  • the end of the friction-increasing tuft 31 away from the hair transplanted surface 125 of the brush plate 12 may be in contact with the user's teeth, or the side wall surface 3132 of the friction-increasing tuft 31 may be in contact with the user's teeth after deformation.
  • the friction coefficient between the free end 3131 of the friction-increasing tuft 31 and the user's teeth the friction coefficient between the side wall surface 3132 of the friction-increasing tuft 31 and the user's teeth, it is the same as the friction coefficient between the other bristles 30 except the friction-increasing tuft 31 and the user's teeth.
  • the relationship between the friction coefficients may include one or more of the following embodiments.
  • the friction coefficient between the free end 3131 of the friction-increasing tuft 31 and the user's teeth is greater than the friction coefficient between the remaining bristles 30 except the friction-increasing tuft 31 and the user's teeth.
  • the friction coefficient between the free end 3131 of the friction-increasing tuft 31 and the user's teeth is greater than the friction coefficient between the remaining bristles 30 except the friction-increasing tuft 31 and the user's teeth, when the user applies force on the toothbrush When the force is small, it can be ensured that the free end 3131 of the friction-increasing cluster 31 is in direct effective contact with the user's teeth, thereby further improving the brush head 10 overall cleaning ability.
  • the friction coefficient between the side wall surface 3132 of the friction-increasing tuft 31 and the user's teeth is greater than the friction coefficient between the remaining bristles 30 except the friction-increasing tuft 31 and the user's teeth.
  • the friction coefficient between the side wall surface 3132 of the friction-increasing tuft 31 and the user's teeth is greater than the friction coefficient between the remaining bristles 30 except the friction-increasing tuft 31 and the user's teeth, when the user applies the force on the toothbrush When the force is large, the friction-increasing cluster 31 deforms and its side wall surface 3132 effectively contacts the user's teeth, thereby further improving the overall cleaning ability of the brush head 10 .
  • the bristles 30 also include color indicating clusters 32, and the user can indicate the wear status of the bristles 30 according to changes in the color of the color indicating clusters 32.
  • the color indicates that the color of the tufts 32 is at least different from the color of the friction-increasing tufts 31 .
  • the factors causing the color change of the color indication cluster 32 may be, but are not limited to, one or more of the following embodiments.
  • the color of the color indication cluster 32 changes as the number of times the color indication cluster 32 is used increases. For example, as the number of uses of the color indication cluster 32 increases, the color of the color indication cluster 32 gradually becomes lighter, or the color indication cluster 32 directly transforms from a certain color to another color. In this design, the user can intuitively judge the wear degree of the bristles 30 by observing the color change of the color indicator cluster 32, so that the user can replace the brush head 10 conveniently.
  • the color of the color indication cluster 32 changes as the usage time of the color indication cluster 32 increases. For example, as the use time of the color indication cluster 32 increases, the color of the color indication cluster 32 gradually becomes lighter, or the color indication cluster 32 directly transforms from a certain color to another color. In this design, the user can intuitively judge the wear degree of the bristles 30 by observing the color change of the color indicator cluster 32, so that the user can replace the brush head 10 conveniently.
  • the color indication cluster 32 is designed to facilitate the user to intuitively judge the wear degree of the bristles 30 by observing the color change of the color indication cluster 32 , so that the user can replace the brush head 10 , and the color indication cluster 32
  • the friction coefficient between the friction-increasing cluster 31 and the user's teeth is smaller than the friction coefficient between the friction-increasing cluster 31 and the user's teeth.
  • the area occupied by the friction-increasing clusters 31 on the hair-planted surface 125 of the brush plate 12 is larger than that of the color indicator clusters 32 on the hair-planted surface of the brush plate 12. 125 occupies an area.
  • the greater the number of friction-increasing clusters 31, the greater the friction between the bristles 30 and the user's teeth during brushing, and the stronger the cleaning ability.
  • the free ends 3131 of the bristles 30 on the side away from the brush plate 12 can be located in the same plane, that is, the height of each filament 311 in the bristles 30 is the same.
  • the bristle 30 is designed to include a first bristle group 30a and a second bristle group 30b.
  • the first bristle group 30a It is closer to the brush rod 11 than the second bristle group 30b.
  • the height design of the first bristle group 30a and the second bristle group 30b may include, but is not limited to, one or more of the following embodiments.
  • the height of the first bristle group 30a gradually decreases and the height of the second bristle group 30b gradually increases. That is to say, the first bristle group 30a gradually becomes shorter in the direction approaching the second bristle group 30b, and the second bristle group 30b gradually becomes higher in the direction away from the first bristle group 30a.
  • the distance between the free end 3131 of the first bristle group 30a and the bristle planting surface 125 of the brush plate 12 gradually decreases, and the distance between the free end 3131 of the second bristle group 30b and the bristle planting surface 125 of the brush plate 12 gradually decreases.
  • the distance gradually increases.
  • the height of the first bristle group 30a and the height of the second bristle group 30b are designed to be arranged in the above-mentioned arrangement, so that the bristle 30 can fit more closely with the user's teeth and improve the contact between the bristle 30 and the user's teeth during the user's brushing process. The degree of fit is further improved, thereby further improving the cleaning ability of the brush head 10.
  • the two ends of the first bristle group 30a and the second bristle group 30b that are close to each other are at the same height relative to the bristle transplanting surface 125 of the brush plate 12 . That is to say, there is a smooth transition between the first bristle group 30a and the second bristle group 30b.
  • the height of the first bristle group 30a and the height of the second bristle group 30b are designed to be arranged in the above-mentioned manner.
  • the bristle 30 can fit more closely with the user's teeth, and improve the contact between the bristle 30 and the user's teeth during the user's brushing process. The fit is better, thereby further improving the cleaning ability of the brush head 10.
  • the height of the first bristle group 30a is lower than the height of the second bristle group 30b.
  • the height of the first bristle group 30a and the height of the second bristle group 30b are designed to be arranged in the above-mentioned arrangement, so that the bristle 30 can fit more closely with the user's teeth and improve the contact between the bristle 30 and the user's teeth during the user's brushing process. fit, thereby further improving Brush head 10 cleaning power.
  • the height difference ⁇ H between the end of the second bristle group 30b away from the first bristle group 30a and the end of the first bristle group 30a away from the second bristle group 30b relative to the bristle planting surface 125 of the brush plate 12 is greater than or equal to 1 mm and less than or equal to 4 mm.
  • the specific value of the height difference ⁇ H between the two may be, but is not limited to, 1 mm, 2 mm, 3 mm or 4 mm.
  • the bristles 30 as a whole can fit better with the user's teeth, improving the fit between the bristles 30 and the user's teeth during brushing, thereby further improving the cleanliness of the brush head 10 ability; if the height difference ⁇ H is less than 1 mm, the overall height change of the bristles 30 is relatively gentle, so it is easy for the user to have the bristles 30 located in the middle of the brush plate 12 come into contact with the user's teeth during the brushing process, and the bristles located at both ends of the brush plate 12 When 30 is not in contact with the user's teeth, some of the bristles 30 cannot achieve an effective cleaning effect, which will result in the user's teeth being unable to be effectively cleaned; if the height difference ⁇ H is greater than 4 mm, the overall height change of the bristles 30 is relatively steep, so the user During the brushing process, it is easy to happen that the bristles 30 located at both ends of the brush plate 12 are in contact
  • the bristles 30 also include first fluorine-containing clusters 33 and/or second fluorine-containing clusters 34, where the fluorine-containing clusters refer to the preparation of the bristles 30
  • the material contains fluoride ions.
  • the arrangement between the first fluorine-containing clusters 33 and the friction-increasing clusters 31 and the arrangement between the second fluorine-containing clusters 34 and the color indicating clusters 32 may include, but are not limited to, one of the following embodiments or Various.
  • the friction-increasing clusters 31 are arranged around the first fluorine-containing clusters 33 .
  • the friction-increasing clusters 31 can be arranged around the first fluorine-containing clusters 33 in one or more circles with the first fluorine-containing clusters 33 as the center.
  • the occurrence of oral diseases such as dental caries can be effectively reduced.
  • color indicating clusters 32 are positioned around second fluorine-containing clusters 34 .
  • the color indicating cluster 32 may be arranged around the second fluorine-containing cluster 34 in one or more circles with the second fluorine-containing cluster 34 as the center of the circle.
  • the occurrence of oral diseases such as dental caries can be effectively reduced.
  • the overall arrangement of the bristles 30 on the brush plate 12 presents a double wheel. structure, at this time, the first fluorine-containing cluster 33 and the friction-increasing clusters 31 arranged around its circumference are equivalent to one of the two-wheel structures, and the second fluorine-containing cluster 34 and the color indicating cluster arranged around its circumference 32 is equivalent to the other wheel structure in the two-wheel structure.
  • the first bristle group 30a includes a friction-increasing tuft 31 and a first fluorine-containing tuft 33.
  • the second bristle set 30b includes a color indicating tuft 32 and a second fluorine-containing tuft 34.
  • the first bristle group 30a also includes a third fluorine-containing cluster 35, and/or the second bristle group 30b also includes a fourth fluorine-containing cluster 36.
  • the relative arrangement between 35 and the friction-increasing cluster 31 and the first fluorine-containing cluster 33, and the relative arrangement between the fourth fluorine-containing cluster 36 and the color indicating cluster 32 and the second fluorine-containing cluster 34 can be but are not limited to Including one or more of the following embodiments.
  • the third fluorine-containing cluster 35 is disposed on a side of the friction-increasing cluster 31 away from the color indicating cluster 32 .
  • the fluoride ions are distributed more evenly, which can further effectively reduce the occurrence of oral diseases such as dental caries.
  • the fourth fluorine-containing cluster 36 is disposed between the color indicating cluster 32 and the friction increasing cluster 31.
  • the fourth fluorine-containing cluster 36 is designed to make the fluorine ions more evenly distributed, which can further effectively reduce the occurrence of oral diseases such as dental caries.
  • the change in color of the color indicator cluster 32 can indicate the wear of the toothbrush. Since the second bristle group 30b is disposed farther away from the brush rod 11 than the first bristle group 30a, the second bristle group 30b is in contact with the user's teeth. The frequency of contact with the user's teeth is higher than that of the first bristle group 30a, so the wear of the second bristle group 30b will be more serious than the wear of the first bristle group 30a. For example, there may be situations where the second bristle group 30b is seriously worn and the cleaning ability of the second bristle group 30b is reduced, while the first bristle group 30a is lightly worn and the first bristle group 30a still has good cleaning ability. By changing the color The indication cluster 32 is provided in the second bristle group 30b, which can further improve the indication accuracy of the color indication cluster 32.
  • the first bristle group 30a includes the friction-increasing tufts 31 and the first fluorine-containing tufts 33
  • the second bristle group 30b includes the color-indicating tufts 32 and the second fluorine-containing tufts 34
  • the color of the friction-increasing tufts 31 , the color of the color indicating cluster 32 and the color of the first fluorine-containing cluster 33 are different from each other, and the color of the first fluorine-containing cluster 33 and the color of the second fluorine-containing cluster 34 are the same.
  • the color of color indicator cluster 32 may be blue, increasing the The color of the friction cluster 31 may be purple, and the colors of the first fluorine-containing cluster 33 and the second fluorine-containing cluster 34 may both be white.
  • the color indicating cluster 32 can be matched with the friction-increasing clusters 32 after the color changes.
  • the clusters 31, the first fluorine-containing clusters 33 and the second fluorine-containing clusters 34 can form a more vivid contrast in terms of visual impact on the user.
  • the color of the color indicating cluster 32 can also be the same as the color of other clusters (such as the first fluorine-containing cluster 33, the second fluorine-containing cluster 34 and the friction-increasing cluster 31).
  • the free end is in more frequent contact with the user's teeth relative to the root of the color indication cluster 32, causing the free end of the color indication cluster 32 to fade more seriously.
  • the color of the color indication cluster 32 gradually becomes lighter from its root to the free end to provide Users serve as instructions.
  • the brush plate 12 As shown in Figure 21, considering that the brush plate 12 is used to carry the bristles 30, during the user's brushing process, the brush plate 12 generates an interaction force with the user's teeth through the bristles 30.
  • at least part of the brush plate 12 is elastic.
  • the connection part between the brush plate 12 and the brush rod 11 has elasticity. In this design, when the user is brushing their teeth, the bristles 30 are in contact with the user's teeth and are acted upon by force.
  • the bristles 30 transfer the force to the brush plate 12 to cause the brush plate 12 to elastically deform, and the farther away the brush plate 12 is from the brush rod 11
  • the greater the deformation amplitude the first bristle group 30a disposed close to the brush rod 11 can be closer to the user's teeth, increasing the contact area between the first bristle group 30a and the user's teeth, thereby further improving the brush head. 10 overall cleaning power.
  • the brush plate 12 when the user cleans the molars located on the inner side of the oral cavity, the brush plate 12 needs to be extended into the inner side of the oral cavity.
  • the bristle surface 125 of the brush plate 12 has two arc-shaped edge lines 126 symmetrically arranged about the length direction M, and the distance between the two edge lines 126 and the length direction M increases first and then decreases from the side close to the brush rod 11 to the side away from the brush rod 11.
  • the brush plate 12 is constructed into a shape with a larger width in the middle and a smaller width at both ends, which can effectively reduce the foreign body sensation during the user's brushing process; in addition, since the brush plate 12 can produce elastic deformation, the width of the two ends of the brush plate 12 is designed to be smaller, which can reduce the anti-deformation ability of the brush plate 12, making the brush plate 12 more likely to deform, so that the first bristle group 30a is more likely to contact the user's teeth.
  • the structure of the brush head 10 of the present application can also be the following scheme.
  • the brush head 10 includes a brush rod 11, a brush plate 12 and bristles 40.
  • the brush plate 12 can carry the bristles 40, and the bristles 40 can clean the teeth.
  • the brush plate 12 and the bristles 40 constitute a brush.
  • the head of the head 10 extends into the oral cavity.
  • the bristles 40 are fixed to the brush plate 12 and include a first brush filament group 41, a second brush filament group 42 and a third brush filament group 43 sequentially distributed along the length direction The first area 127, the second area 128 and the third area 129 are distributed.
  • the first brush wire group 41 is located in the first area 127
  • the second brush wire group 42 is located in the second area 128, and the third brush wire group 43 is located in the first area 127, the second area 128 and the third area 129. In the third area 129.
  • the first brush filament group 41 is composed of a plurality of brush filaments (not shown). The roots of each brush filament are fixed on the first area 127. Each brush filament extends upward from the brush plate 12 along the thickness direction Z. Each brush filament extends upward. The length of the brush plate 12 is the height of the brush filaments, and the height of the first brush filament group 41 is defined by the height of the brush filaments. The tips of each brush filament of the first brush filament group 41 define a first brush surface 411 .
  • the second brush filament group 42 is composed of a plurality of brush filaments. The roots of each brush filament are fixed on the second area 128 . Each brush filament extends upward from the brush plate 12 along the thickness direction Z. Each brush filament extends upward from the brush plate 12 . The length is the height of the brush filaments, and the height of the second brush filament group 42 is defined by the height of the brush filaments. The tips of each brush filament of the second brush filament group 42 define a second brush surface 421 .
  • the third brush filament group 43 is composed of a plurality of brush filaments.
  • the root of each brush filament is fixed on the third area 129.
  • Each brush filament extends upwards from the brush plate 12 along the thickness direction Z.
  • Each brush filament extends upward from the brush plate 12.
  • the length is the height of the brush filaments, and the height of the third brush filament group 43 is limited by the height of the brush filaments.
  • the tips of each brush filament of the third brush filament group 43 define a third brush surface 431 .
  • the brush surface 431 forms a concave curved surface 44 .
  • the connecting portion of the second brush surface 421 and the first brush surface 411 forms a convex curved surface 45 that arches away from the brush plate 12 .
  • the highest height of the convex curved surface 45 is a sharp portion 451 .
  • the sharp portion 451 can extend into the tooth gap, and the sharp portion 451 is formed at the connection between the first brush filament group 41 and the second brush filament group 42.
  • Each brush wire group of the bristles 40 has a length in the length direction X, a height in the thickness direction Z and a width in the width direction Y, and the length direction X, the thickness direction Z and the width direction Y are perpendicular to each other.
  • the height of each brush wire group of the bristles 40 can be the length of the brush wire group extending upward from the brush plate 12 in the thickness direction Z, which is equivalent to the distance between the tip of the brush wire and the brush plate 12 in the thickness direction Z, and also equivalent to the distance between the brush surface and the brush plate 12 in the thickness direction.
  • a sharp portion 451 is formed at the junction between the first brush surface 411 and the second brush surface 421, and the sharp portion 451 is suitable for extending into the gap between adjacent teeth; due to the formation of the second brush surface 421 and the third brush surface 431 A concave curved surface 44, the connecting part of the second brush surface 421 and the first brush surface 411 forms a convex curved surface 45 with the first brush surface 411 including the sharp part 451, so that the sharp part 451 can extend into the tooth gap and be relatively smooth.
  • the brush rod 11 extends along the length direction 113 and the distal end 115 are respectively located at opposite ends of the brush rod 11 along the length direction X.
  • the proximal end 113 of the brush rod 11 is adjacent to the third filament group 43 of the bristles 40 .
  • the brush rod 11 and the brush plate 12 are fixedly connected, and the connection method may be but not limited to clamping, bonding, hot-melt welding, threaded connection, or integrated molding.
  • the first brush filament group 41 includes a plurality of first brush filament clusters 412.
  • Each first brush filament cluster 412 is formed by a plurality of brush filaments arranged in bundles, and each first brush filament cluster 412 is in a point shape. Distributed in the first area 127 of the brush plate 12 .
  • the second brush filament group 42 includes a plurality of second brush filament clusters 422 .
  • Each second brush filament cluster 422 is formed by a plurality of brush filaments arranged in bundles.
  • Each second brush filament cluster 422 is distributed in a point shape on the brush plate 12 Second area 128.
  • the third brush filament group 43 includes a plurality of third brush filament clusters 432.
  • Each third brush filament cluster 432 is formed by a plurality of brush filaments arranged in bundles.
  • Each third brush filament cluster 432 is distributed in a point shape on the brush plate 12.
  • the shape of the cross-section of each brush filament cluster parallel to the brush plate 12 may be, but is not limited to, circular, elliptical, or polygonal, and its cross-section may be set according to design and manufacturing requirements.
  • the cross-section of each brush filament cluster may be the same or different.
  • the brush filament clusters can be distributed in a curve, a straight line, an array, or other distribution methods that meet design and manufacturing requirements.
  • each first brush filament cluster 412 is distributed in an arc shape.
  • the second brush filament clusters 422 include a plurality of second inner brush filament clusters 422a located on the inner side and a plurality of second outer brush filament clusters 422b located on the outer side.
  • the inner side is the side away from the brush rod 11 and the outer side is close to the brush rod 11 .
  • each second inner brush filament cluster 422a is distributed in an arc shape
  • each second outer brush filament cluster 422b is also distributed in an arc shape.
  • Each third brush filament cluster 432 is distributed on the brush plate 12 in a point shape.
  • the first area 127 of the brush plate 12 is provided with a first groove 1271 corresponding to the first brush filament cluster 412, and the root of each brush filament is implanted and fixed in the first groove 1271.
  • the second area 128 of the brush plate 12 is provided with a second groove 1281 corresponding to the second brush filament clusters 422, and the roots of each brush filament are implanted and fixed in the second groove 1281.
  • the third region 129 of the brush plate 12 is provided with a third groove 1291 that corresponds to the third brush filament cluster 432 one-to-one, and the roots of each brush filament are implanted and fixed in the third groove 1291.
  • one groove of the brush plate 12 can also be used to implant and install multiple brush filament clusters.
  • the brush plate 12 may have a hair-planting surface 125 facing the bristles 40, and the first groove 1271, the second groove 1281 and the third groove 1291 are provided on the hair-planting surface 125.
  • the height of the brush filament group is the length of the brush filament extending upward from the hair-planting surface 125 in the thickness direction Z.
  • the highest height of the third brush filament group 43 is less than the highest height of the first brush filament group 41, so that the brush filaments of the third brush filament group 43 are shorter than the brush filaments of the first brush filament group 41.
  • the contact between the third brush wire group 43 and the teeth prevents the above-mentioned sharp portion 451 from extending into the gap between the teeth.
  • the highest height of the brush filaments is shorter than the highest height of the first brush filament group 41, so there will be no problem due to the higher height of the third brush filament group 43 in certain postures.
  • the brush wire contacts the teeth and prevents the above-mentioned sharp portion 451 from extending into the gap between the teeth, thereby preventing the contact area between the bristles 40 and the teeth from being small and affecting the tooth brushing effect.
  • the length of the first brush filament group 41 in the length direction is A
  • the length of the bristles 40 as a whole in the length direction is B
  • 1/10 ⁇ A:B ⁇ 1/3 the first brush filament group 41 has more support to prevent the higher height filaments of the first brush filament group 41 from being permanently deformed.
  • the first brush surface 411 of the first brush filament group 41 has a certain area.
  • the first brush surface 411 has a large contact area with the gums, which disperses the pressure and can reduce the pain of stabbing the gums.
  • a longer distance is provided to arrange the second brush filament group 42 and the third brush filament group 43, because the second brush filament group 42 and the third brush filament group 43 are the main parts of the brush head 10, and more brush filaments are required.
  • the longer length dimension allows the height of the second brush filament group 42 and the third brush filament group 43 to change more smoothly, so that the brush filaments of the second brush filament group 42 and the third brush filament group 43 can smoothly contact the tooth surface.
  • the height change rate of the first brush filament group 41 is smaller than the height change rate of the second brush filament group 42 .
  • the first brush filament group 41 contacts the inner teeth
  • the second brush filament group 42 contacts the outer teeth.
  • the sharp portion 451 extends into the tooth gap.
  • the part of the outer teeth near the tooth gap usually has a curvature. The change is large, so it can adapt to the shape of the teeth and the gaps between the teeth, fit the teeth more closely, and brush the teeth more comprehensively.
  • the length of the first brush filament group 41 in the length direction X is less than the length of the second brush filament group 42 in the length direction X
  • the second brush filament group 42 includes a first distribution section 42a and the second distribution section 42b.
  • the height change rate of the section 42a is greater than the height change rate of the first brush filament group 41
  • the height change rate of the first brush filament group 41 is greater than the height change rate of the second distribution section 42b.
  • the sharp angle of the sharp portion 451 formed at the connection between the first brush wire group 41 and the second brush wire group 42 is smaller, and the height change of the first brush wire group 41 is relatively gentle, making it difficult to The user feels sharp and stinging, and can ensure that the sharp part 451 can be inserted into the gap between teeth for cleaning.
  • the purpose of the second brush wire group 23 being relatively flat is to better contact with the teeth, and its length X in the longitudinal direction cannot be too short.
  • the area sum of the orthographic projections of the first brush filament group 41 and the first distribution section 42a on the brush plate 12 is smaller than the orthographic projection of the second distribution section 42b and the third brush filament group 43 on the brush plate 12 area sum. Since the second brush filament group 42 and the third brush filament group 43 are the main tooth brushing parts, by setting the above area relationship, the main tooth brushing part has a larger area. Generally, the orthographic projection on the brush plate 12 is equivalent to the orthographic projection on the hair-planted surface 125 of the brush plate 12 .
  • the length of the first brush filament group 41 in the length direction X is 2 mm-6 mm.
  • the support effect of the first brush filament group 41 is poor when brushing teeth, and it is easy to cause permanent deformation of the higher height brush filaments;
  • the length is greater than 6 mm, the height change rate of the first brush filament group 41 If it is too small, it is difficult to form the sharp portion 451, that is, the contact between the first brush filament group 41 and the tooth surface will affect the higher-height bristles 40 from extending into the tooth gaps.
  • the height difference between the highest height and the lowest height of the first brush wire group 41 is 1 mm-3.5 mm.
  • the position with the highest height may be the position connected to the second brush filament group 42
  • the position with the lowest height may be the position furthest away from the second brush filament group 42 .
  • the sharp part 451 is too smooth to facilitate cleaning between teeth; when the height difference is greater than 3.5 mm, the height of the first brushing group 21 changes relatively drastically, making the sharp part 451 too sharp and easily injuring the teeth.
  • the height difference between the highest height and the lowest height of the third brush wire group 43 is 0.5mm-2.5mm.
  • the height of the bristles of the third brush filament group 43 changes gently and adapts to the shape of the teeth.
  • the contact area with the teeth is larger, thereby improving the tooth brushing effect.
  • the height difference is less than 0.5 mm or greater than 2.5 mm, making the height change of the third brush filament group 43 too gentle or too drastic will affect its contact area with the teeth.
  • the height difference between the highest height of the first brush filament group 41 and the highest height of the third brush filament group 43 is 0.5mm-1.8mm, and the highest height of the first brush filament group 41 is greater than the third brush filament Maximum height of group 43.
  • the highest height of the first brush filament group 41 and the lowest height of the third brush filament group 43 are the highest height of the first brush filament group 41 and the lowest height of the third brush filament group 43 are the highest height of the first brush filament group 41 and the lowest height of the third brush filament group 43 are the highest height of the first brush filament group 41 and the lowest height of the third brush filament group 43 are the highest height of the first brush filament group 41 and the lowest height of the third brush filament group 43 are the highest height of the first brush filament group 41 and the lowest height of the third brush filament group 43 are
  • the height difference is 1.5mm-2.5mm.
  • the changes of the second brush filament group 42 and the third brush filament group 43 are relatively gentle, adapting to the shape of the teeth, preventing the bristles from being in contact with the teeth during brushing, and improving the brushing effect.
  • the height difference is less than 1.5 mm or greater than 2.5 mm, making the height changes of the second brush filament group 42 and the third brush filament group 43 too gentle or too drastic will affect their contact area with the teeth.
  • the maximum width of the first brush filament group 41 in the width direction Y is smaller than the maximum width of the second brush filament group 42 in the width direction Y, and the width direction Y is perpendicular to both the length direction X and the thickness direction Z.
  • a portion of the brush filaments of the third brush filament group 43 are tilted relative to the brush plate 12.
  • all the first brush filament tufts 412 and a part of the second brush filament tufts 422 form a circle to form a first bristle ring
  • a part of the third brush filament tufts 222 form a circle to form a second bristle ring.
  • the distribution of the bristles 40 will affect the contact between the bristles 40 and the teeth. Multiple brush filament clusters are arranged in a ring shape. No matter what holding posture the user uses, the bristles 40 can be effective.
  • the brushing cleans the teeth.
  • the first bristle ring it may be composed of all the first bristle tufts 412 and the second inner bristle tuft 422a.
  • the second outer tuft 422b is located between the first and second bristle rings.
  • the sum of the area of the orthographic projection of each first brush filament cluster 412 surrounding the first bristle ring on the brush plate 12 is S1
  • the orthographic projection of each second brush filament cluster 422 surrounding the first bristle ring on the brush plate 12 The sum of the areas is S2, and S1 is greater than S2, as shown in FIG. 4 , that is, the sum of the areas of the orthographic projections of each second inner brush filament cluster 422a on the brush plate 12 is less than S1.
  • the bristles 40 also include a first middle filament tuft 26 and a second middle filament tuft 27 .
  • the first bristle ring surrounds the first middle filament tuft 26 and the second bristle ring surrounds the second middle filament tuft 27 .
  • the number of brush filaments of the first brush filament cluster 412 may be smaller than the number of brush filaments of the third brush filament cluster 432 , and the density of the first brush filament cluster 412 of the first brush filament group 41 is greater than that of the third brush filament group 43 .
  • the density of the brush filament clusters in the first brush filament group 41 is relatively high in order to provide better support and avoid permanent deformation of the brush filaments suitable for extending into the tooth gaps.
  • the density of the brush filament clusters in the third brush filament group 43 is smaller, which can reduce the overall structural strength and allow the bristles to be deformed relatively easily. Otherwise, on the one hand, it is easy for the user's gums to have a sharp stinging sensation; on the other hand, the bristles 40 The whole is easy to deform, which is conducive to brushing teeth using the Pasteur brushing method.
  • the height of the brush filaments located on the outside thereof can be lower than the height of the brush filaments located on the inside, thereby avoiding poking the gums.
  • the structure of the brush head 10 of the present application includes a brush rod 11, a brush plate 12, and bristles 50.
  • the brush plate 12 includes a back plate (not labeled) and a hair transplanting plate 60.
  • a groove can be opened on the back plate of the brush plate 12, and the hair transplanting plate 60 can be installed in the groove through bonding, or the hair transplanting plate 60 and the back plate can be integrally formed and fixedly installed in the groove.
  • the hair transplanting plate 60 has a longitudinal direction and a width direction that are perpendicular to each other.
  • a plurality of hair transplanting holes are provided on the hair transplanting surface 600 of the hair transplanting plate 60 for fixing the bristles 50.
  • the bristles 50 are fixed in the hair transplanting holes, so that the hair transplanting plate 60 with the bristles 50 fixed becomes a part of the brush head 10 .
  • the bristles 50 fixed in the pores are repeatedly rubbed against the teeth to clean the teeth. Therefore, different arrangements of the bristles 50 on the hair transplanting plate 60 will lead to different toothbrushing effects.
  • the hair transplanting surface 600 of the hair transplantation plate 60 includes a first hair transplantation hole area 610 and a second hair transplantation hole area 620 arranged along the length direction of the hair transplantation plate 60 .
  • the first pore transplantation area 610 includes at least one first central pore transplantation hole 611 and first auxiliary pore transplantation holes 612 spaced around the first central pore transplantation hole 611 .
  • the shape (for example, circular shape), quantity, and arrangement of the first central pores 611 can be set as needed, and the embodiments of the present invention do not specifically limit this; the shape of the first auxiliary pores 612 can also be set as needed.
  • the second pore transplantation area 620 includes a plurality of second auxiliary pores 622 arranged at intervals.
  • the first hair transplanting hole area 610 is close to the free end of the hair transplantation surface 600, and corresponding to the free end is the end of the hair transplantation plate 60 connected to the toothbrush handle.
  • the width of the hair transplanting surface 600 starts from its free end and gradually increases along the length of the hair transplantation surface 600, so the width of the hair transplantation surface 600 can also be increased accordingly.
  • the width of the second pore transplantation area 620 is generally greater than the width of the first pore transplantation area 610, so there is a larger area for arranging the pores. This makes it possible to set larger sizes or a greater number of pores in the second pore area 620 , and also allows more arrangements of the pores in the second pore area 620 .
  • the projection of the contour line of the hair transplantation hole along the length direction of the hair transplantation surface 600 onto the width direction of the hair transplantation surface 600 is the first projection, and at least part of the projection of at least part of the second auxiliary hair transplantation hole 622 is located between two adjacent first auxiliary transplantation holes.
  • the projection intervals of the pores 612, and/or, at least part of the projections of at least part of the first auxiliary pores 612 are located in the projection intervals of two adjacent second auxiliary pores 622, so that the first projections of the pores are connected to each other to form a line. Continuous line segments.
  • the first projection of at least a part of the second auxiliary hair implantation holes 622 along the length direction of the hair implantation surface 600 in the width direction of the hair implantation plate 60 fills the gap between the first projections of the two adjacent first auxiliary hair implantation holes 612 in the width direction of the hair implantation surface 600 mentioned above, so that the first projections of the bristles in all the hair implantation holes on the hair implantation surface 600 in the width direction of the hair implantation plate 60 along the length direction of the hair implantation surface 600 are continuous without gaps.
  • the first auxiliary hair implantation holes 121 can also fill the gaps between the second auxiliary hair implantation holes 622 along the length direction of the hair implantation surface 600 and the first projections along the width direction of the hair implantation surface 600 through their arrangement.
  • the second hair transplantation hole area 620 includes at least one second central hair transplantation hole 621 and a plurality of second auxiliary hair transplantation holes 622 spaced around the second central hair transplantation hole 621; wherein, at least part of the first auxiliary hair transplantation holes At least part of 612 is located in the projection interval of two adjacent second auxiliary hair transplanting holes 622 .
  • the shape, number and arrangement of the second central pores 621 can be set as needed, and the embodiment of the present invention does not specifically limit this; the shape, number and arrangement of the second auxiliary pores 622 can also be set as needed.
  • the arrangement pattern of the center transplanting pores 621 can be set as needed, and the embodiment of the present invention does not specifically limit this; the shape, number and arrangement of the second auxiliary pores 622 can also be set as needed.
  • the arrangement pattern of the center transplanting pores 621 can be set as needed, and the embodiment of the present invention does not specifically limit this; the shape, number and arrangement of the second auxiliary pores 622 can also be set as needed. The arrangement pattern
  • the density of pores in the first pore area 610 can be set to be different from the density of the second pore area 620 .
  • the density of pores here refers to the area occupied by the pores in a certain area on the surface 600 .
  • the proportion is affected by the shape, size, number and arrangement of the graft pores. Therefore, by setting the arrangement of the pores in the first pore transplantation area 610 and the second pore transplantation area 620, the pores in the first pore transplantation area 610 and the second pore transplantation hole area 620 can be arranged along the same line.
  • the first projection of the length direction of the hair transplanting surface 600 in the width direction of the hair transplantation surface 600 is continuous; for example, such that the hair transplantation holes in the second hair transplantation hole area 620 are arranged between adjacent hair transplantation holes in the first hair transplantation hole area 610 in the interval of the first projection.
  • the density of pores in the first pore area is greater than the density of pores in the second pore area, or the spacing between adjacent pores in the first pore area is smaller than the spacing between adjacent pores in the second pore area.
  • the reason for the spacing of the transplanted pores is that when the user inserts the brush head into the mouth to brush the innermost teeth, due to the restriction of the shape of the mouth, the traveling distance of the brush head is limited. During the process of sweeping the brush head left and right, even if the brush head Reaching into the innermost part, the innermost teeth may not be able to contact all the bristles, which will lead to missed brushing in some areas of the innermost teeth. Therefore, the density of the pores in the first pore transplantation area will be reduced. A larger setting or a smaller spacing can effectively improve the cleaning efficiency of the inner teeth.
  • the projection of the contour line of the hair implantation hole along the width direction of the hair implantation surface 600 falling on the length direction of the hair implantation surface 600 is the second projection; the projection of the line connecting the two outermost relatively arranged hair implantation holes in the length direction of the hair implantation surface 600 along the width direction falling in the length direction is the third projection; and the total length of the second projection is not less than 85% of the length of the third projection.
  • the third projection is the distance between the two furthest holes located on the hair transplanting surface 600 that are farthest along the length direction of the hair transplantation surface 600 and the second projection falling in the length direction of the hair transplantation surface 600 .
  • the second projection falling in the length direction of the hair transplantation surface 600 .
  • the sum of the lengths of the first projections of all grafting holes in the length direction of the grafting surface 600 and the length of the third projections are at least 85%, thereby ensuring that when the toothbrush is repeatedly moved along the width direction of the grafting plate 60 for brushing, at most 15% The tooth surface does not come into contact with the bristles, thus ensuring the cleaning effect of brushing on the teeth.
  • the pores on the hair transplanting surface 600 are arranged in such a manner that the outlines of all the hair transplantation holes fall along the width direction of the hair transplantation surface 600 in the length direction of the hair transplantation surface 600
  • the second projection is continuous with no gaps. In this case, when the toothbrush is repeatedly moved along the width direction of the bristle surface 600 to brush teeth, the projection of the bristles in this direction is continuous; therefore, there will be no place where the teeth cannot contact the bristles.
  • At least part of the first auxiliary hair transplanting holes 612 is located on the first circumference 630 surrounding the first central hair transplantation hole 611, and the first circumference 630 passes through the center of all the first auxiliary hair transplantation holes 612 located thereon.
  • the shape and size of the first auxiliary hair transplanting holes 612 located on the first circumference 630 are usually the same, which facilitates the arrangement of the first auxiliary hair transplantation holes 612 in a circle and can reduce the size of the adjacent first auxiliary hair transplantation holes. The distance between 612.
  • the second auxiliary hair transplanting holes 622 is located on the second circumference 640 surrounding the second central hair transplantation hole 621, and the second circumference 640 passes through the center of all the second auxiliary hair transplantation holes 622 located thereon.
  • the shape and size of the second auxiliary hair transplanting holes 622 on 640 are usually the same, which facilitates the arrangement of the second auxiliary hair transplantation holes 622 in a circle; and can reduce the distance between adjacent second auxiliary hair transplantation holes 622. distance.
  • the first auxiliary hair transplanting hole 612 located on the first circumference 630 and the second auxiliary hair transplanting hole 622 located on the second circumference 640 may be oval, hexagonal or rectangular.
  • the shape or/and size of the first auxiliary hair transplanting hole 612 located on the first circumference 630 can also be different; and the shape or/and size of the second auxiliary hair transplanting hole 622 located on the second circumference 640 can also be different. is different.
  • the opening area of the first auxiliary hair transplanting hole 612 located on the first circumference 630 is smaller than the opening area of the second auxiliary hair transplanting hole 622 located on the second circumference 640; specifically, the opening area of the first auxiliary hair transplanting hole 612 located on the first circumference 630
  • the opening area of the first auxiliary hair transplanting hole 612 on the second circumference 640 is 50% to 85% of the opening area of the second auxiliary hair transplantation hole 622 located on the second circumference 640 .
  • the area enclosed by the first circumference 630 is 45%-75% of the area enclosed by the second circumference 640 .
  • the third bristle formation is achieved.
  • a plurality of first reinforced pores 650 are provided between the first circumference 630 and the second circumference 640, and the first reinforced pores 650 are located in the first pore area 610. And the first reinforced pores 650 are disposed at intervals between the first auxiliary holes 612 and the second auxiliary holes 622 along the width direction.
  • the shapes of the plurality of first reinforced hair transplanting holes 650 are different from the shapes of the first auxiliary hair transplanting holes 612 located on the first circumference 630 and the second auxiliary hair transplanting holes 622 located on the second circumference 640, and are different from the first circumference.
  • the smallest distance between 630 and the second circumference 640 is arranged toward the two long sides of the hair transplanting surface 600 .
  • the distance between the first auxiliary hair transplantation hole 612 on the first circumference 630 and the first projection of the second auxiliary hair transplantation hole 622 on the second circumference 640 is further filled.
  • the plurality of first reinforced pores 650 may be arranged in an arc shape.
  • first circumference 630 and the second circumference 640 Since the area between the first circumference 630 and the second circumference 640 is relatively wide; therefore, as needed, it may be considered to set more hair transplanting holes in this area, and set the shape of the first reinforced hair transplanting holes 650 in this area to
  • the first auxiliary hair transplanting holes 612 on a circumference 630 and the second auxiliary hair transplantation holes 622 on the second circumference 640 have different shapes, so that the density of the hair transplantation holes in this area is relatively high.
  • a plurality of second reinforced pores 660 are provided on the side of the second circumference 640 away from the first circumference 630.
  • the second reinforced pores 660 are located in the second pore area 620, and the second reinforced pores 660 are provided In the interval between the first auxiliary hair transplanting hole 612 and the second auxiliary hair transplantation hole 622 along the width direction. Therefore, by providing the second reinforced hair transplanting hole 660, the distance between the first auxiliary hair transplantation hole 612 and the first projection of the second auxiliary hair transplantation hole 622 is further filled.
  • the minimum distance between adjacent hair transplanting holes on the hair transplanting surface 600 is no more than 3 mm and no less than 0.5 mm. If the spacing between adjacent hair transplanting holes is too large (more than 3mm), when hair is transplanted into the hair transplanting holes, the bristles will be sparse, affecting the brushing effect; if the spacing between adjacent hair transplanting holes is too small (less than 0.5mm), the hair transplanting surface 600 will easily crack during hair transplantation. , causing the hair transplanting board 60 to be scrapped.

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  • Dentistry (AREA)
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Abstract

本申请实施例提供一种刷头以及电动牙刷,刷头包括刷杆、刷板以及软胶件。刷板包括植毛板以及背板,背板以及植毛板中的至少一个与刷杆连接;植毛板包括相背设置的植毛面和背面,植毛板还包括位于植毛面与背面之间的周侧面,刷毛自植毛面上延伸而出;背板设置于植毛板的背离刷毛的一侧,且背板的部分区域与背面间隔设置以构设出填充槽,背板包括相对靠近刷杆的第一连接端以及相对远离刷杆的第二连接端,背板通过第一连接端和/或第二连接端与植毛板连接;软胶件填充于填充槽,且软胶件包覆于背板以及植毛板的至少部分所述周侧面。通过设置软胶件,刷头具有较好的缓震性能,且软胶件与刷板连接牢固,不易从刷板上脱落。

Description

刷头以及电动牙刷 技术领域
本申请涉及口腔清洁技术领域,特别涉及一种刷头以及应用该刷头的电动牙刷。
背景技术
相关技术中,电动牙刷驱动刷头高频振动,高频振动的刷头与牙齿或者牙龈接触,从而对用户口腔进行清洁。相关技术中,由于刷头的刷板由硬质材料(如塑料)构成,在刷头振动过程中,较硬的刷板打到牙齿或者牙龈上,会引起用户不适或者对口腔造成损伤。
发明内容
本申请提供一种刷头以及电动牙刷,不仅具有较好的缓震性能,能有效地对牙齿和牙龈进行保护,且软胶件与刷板连接牢固。
本申请实施例第一方面提供一种刷头,包括刷杆、刷板以及软胶件。刷杆具有长度方向;刷板包括植毛板以及背板,背板以及植毛板中的至少一个与刷杆连接;植毛板包括相背设置的植毛面和背面,植毛板还包括位于植毛面与背面之间的周侧面,刷毛自植毛面上延伸而出;背板设置于植毛板的背离刷毛的一侧,且背板的部分区域与背面间隔设置以构设出填充槽,且沿长度方向,背板包括相对靠近刷杆的第一连接端以及相对远离刷杆的第二连接端,背板通过第一连接端和/或第二连接端与植毛板连接;
软胶件填充于填充槽,且软胶件包覆于背板以及植毛板的至少部分周侧面。
第二方面,本申请实施例提供一种电动牙刷,包括刷头和刷柄组件,刷头包括刷杆、刷板以及软胶件。刷杆具有长度方向;刷板包括植毛板以及背板,背板以及植毛板中的至少一个与刷杆连接;植毛板包括相背设置的植毛面和背面,植毛板还包括位于植毛面与背面之间的周侧面,刷毛自植毛面上延伸而出;背板设置于植毛板的背离刷毛的一侧,且背板的部分区域与背面间隔设置以构设出填充槽,且沿长度方向,背板包括相对靠近刷杆的第一连接端以及相对远离刷杆的第二连接端,背板通过第一连接端和/或第二连接端与植毛板连接;软胶件填充于填充槽,且软胶件包覆于背板以及植毛板的至少部分周侧面;刷柄组件与刷头可拆卸连接。
本申请实施例的刷头以及电动牙刷,通过将背板的部分区域与植毛板的背面之间间隔设置,以构设出填充槽,并通过进一步设置软胶件,包覆背板并填充至填充槽,软胶件还覆盖背面,且软胶至少包覆周侧面上的靠近背面的一圈区域,使得本实施例的刷头具有两个方面的效果:
第一,就缓震效果而言,由于刷头包覆背板以及植毛板的背面,因此,刷头的背部为通过软胶件与用户口腔接触,且软胶件还至少包覆植毛板的周侧面上的靠近背面的一圈区域,因此,刷头的周侧为通过软胶件与用户口腔接触,而刷头的前侧则通过刷毛与用户口腔接触。综合来看,除了刷毛与用户口腔接触之外,植毛板几乎不与用户口腔接触,背板也不会与用户口腔接触,刷头除了刷毛所在的前侧之外,几乎均通过软胶件与用户口腔接触,由于软胶件的材质较软,容易发生弹性形变,因此,能够起到较好地缓震作用,能够有效保护用户口腔;
第二,就软胶件与刷板的连接稳定而言,由于软胶件填充于填充槽,而填充槽为背板沿刷板的厚度方向与植毛板间隔设置形成,因此,填充槽与软胶件之间相互制约,使得软胶件不能沿刷板的厚度方向松动而脱离刷板。再者,由于软胶件至少包覆周侧面上的靠近背面的一圈区域,因此,植毛板的周侧面与软胶件之间也相互制约,使得软胶件不能沿刷板所在平面内的任意方向松动而脱离刷板。此外,软胶件可以在刷板上注塑成型,以填满上述填充槽,并包覆背板、背面以及一圈周侧面,软胶件与背板以及植毛板之间具有更强的结合力度。因此,软胶件与刷头之间具有较佳地连接稳定性。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请一种实施例中的电动牙刷的结构示意图;
图2为本申请一种实施例中的刷头的结构示意图;
图3为图2中示出的刷头的分解示意图;
图4为图2示出的刷头的另一视角的结构示意图;
图5为图4中的刷头沿D-D剖面的剖视图;
图6为图5中A部的放大结构示意图;
图7为图2示出的刷头的部分结构的分解示意图;
图8为图2示出的刷头中的软胶件的结构示意图;
图9为图8所示软胶件的另一视角的结构示意图;
图10为图9中的软胶件沿F-F剖面的剖视图;
图11为本申请图2示出的刷头中刷板的另一种实施例结构示意图;
图12为本申请图2示出的刷头中刷板的又一种实施例结构示意图;
图13为本申请图2示出的刷头中刷板的再一种实施例结构示意图;
图14为本申请又一实施例的刷头的结构示意图;
图15为图14实施例中刷头的分解结构示意图;
图16为图14所示实施例中刷头的部分结构示意图
图17为图14中的刷头中结合部为台阶结构时的刷头的分解结构示意图;
图18为图14实施例的刷头中结合部为凸棱结构时的部分结构示意图;
图19为图14中的刷头中的软胶件一实施例的结构示意图;
图20为图14中的刷头的又一部分结构示意图;
图21为本申请另一实施例的刷头的正视示意图;
图22为图21示出的刷头中组成增摩簇的一实施例的刷丝的剖视示意图;
图23为图21示出的刷头中组成增摩簇的另一实施例刷丝的剖视示意图;
图24为图21示出的刷头中组成增摩簇的又一实施例的刷丝的剖视示意图;
图25为图21示出的刷头中组成增摩簇的再一种实施例的刷丝的剖视示意图;
图26为图21示出的刷头的侧视示意图;
图27为本申请另一实施例的刷头的分解结构示意图;
图28为图27示出的刷头一视角的立体图;
图29为图27示出的刷头另一视角的立体图;
图30为图27示出的刷头的正视图;
图31为图27示出的刷头的一视角的侧视图;
图32为图27示出的刷头的另一视角的立体图;
图33为本申请再一实施例的刷头的立体结构示意图;
图34为图33示出的刷头中的植毛板的立体结构示意图;
图35为图33示出的刷头中的植毛板的正视图。
附图标号说明:
100-电动牙刷;10-刷头;11-刷杆;111-连接段;11a-第一杆段;11b-第二杆段;11c-第二台阶结构;11c1-第二台阶面;113-近端;115-远端;12-刷板;12a-填充槽;12b-填充槽口;12a1-第一段;12a2-第二段;121、60-植毛板;121a、1201、125、600-植毛面;121b-背面;1202-外背面;1203-外周面;121c-周侧面;121d-植毛孔;121e、1205-凹槽;122-背板;123-连接部;124-结合部;126-边缘线;1221-第一连接端;1222-第二连接端;1241-第一台阶结构;1242-凸棱结构;1243-第一台阶面;1251、127-第一区 域;1252、128-第二区域;129-第三区域;1271-第一凹槽;1281-第二凹槽;1291-第二凹槽;13、30、40、50-刷毛;14-软胶件;14a-内周面;14b-配合槽;141-第一填充部;142-外软胶轮廓;143-套接部;144-第二填充部;143a-套接孔;1401-凸部;15-连接件;20-刷柄组件;21-刷柄;22-电路板;23-电池;24-电机;30a-第一刷毛组;30b-第二刷毛组;31-增摩簇;311-刷丝;3111-刷丝的外表面;312-摩擦结构;313-增摩簇的外表面;3131-自由端;3132-周侧面;314-基材;315-增摩颗粒;32-颜色指示簇;33-第一含氟簇;34-第二含氟簇;35-第三含氟簇;36-第四含氟簇;41-第一刷丝组;411-第一刷面;412-第一刷丝簇;42-第二刷丝组;42a-第一分布段;42b-第二分布段;421-第二刷面;422-第二刷丝簇;422a-第二内刷丝簇;422b-第二外刷丝簇;43-第三刷丝组;431-第三刷面;432-第三刷丝簇;44-凹曲面;45-凸曲面;451-尖锐部;46-第一中间刷丝簇;47、第二中间刷丝簇;610-第一植毛孔区;611-第一中心植毛孔;612-第一辅助植毛孔;620-第二植毛孔区;621-第二中心植毛孔;622-第二辅助植毛孔;630-第一圆周;640-第二圆周;650-第一加强植毛孔;660-第二加强植毛孔。
本申请目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下部将结合附图对本申请实施例方式作进一步地详细描述。
请参阅图1,本申请实施例公开一种电动牙刷100,电动牙刷100包括刷柄组件20以及与刷柄组件20可拆卸连接的刷头10。刷柄组件20包括刷柄21以及设置于刷柄21内的电路板22、电池23以及电机24等部件。电池23给电路板22以及电机24等供电。电路板22用于控制电机24动作。电机24的输出轴传出刷柄21外,以与刷柄21连接并带动刷头10振动,进而通过振动的刷头10对用户口腔进行清洁。
电机24驱动刷头10振动时的振动频率比较高,示例性的,该振动频率的范围为10000-40000次/分钟。在该频率范围内,如果刷头10材质比较硬,刷头10打到牙齿或者牙龈上,容易引用用户的不适对牙齿或者牙龈造成损伤。相关技术中,通过在刷头外包软胶解决硬胶刷头打牙的问题,但是由于刷头使用环境为多水、潮湿环境,软胶与硬胶之间的结合力容易失效,导致软胶脱落等问题产生。
刷头10与电机24的输出轴可拆卸连接,以便于更换不同型号或者不同材质的刷头10。可以理解的是,本申请实施例的刷头10也可以应用于手动牙刷,同样可以降低刷头10对口腔尤其是敏感性牙齿或者敏感性牙龈的损伤。
请一并参阅图2-5,在一些实施例中,刷头10包括刷杆11、刷板12、刷毛13以及软胶件14。
刷杆11大致呈长条状,刷杆11具有长度方向AA,刷杆11的一端用于与电机24的输出轴可拆卸连接,另一端与刷板12连接,刷杆11使得刷头10整体具有一定长度,以便于刷头10能够触及口腔中需要清洁的各个部位。
请一并参阅图3-5,刷板12具有宽度方向BB以及厚度方向CC,宽度方向BB、厚度方向CC与长度方向AA两两垂直,刷板12包括植毛板121以及背板122,刷毛13设置于植毛板121上。刷板12通过背板122以及植毛板121中的至少一个与刷杆11的远离电机24输出轴的一端连接,在只有植毛板121与刷杆11连接时,电机24的输出轴通过刷杆11将振动能量传导到植毛板121,再传导到背板122以及刷毛13上。在只有背板122与刷杆11连接时,电机24的输出轴通过刷杆11将振动能量传导到背板122上,再依次传导到植毛板121以及刷毛13上。在植毛板121以及背板122同时与刷杆11连接时,电机24的输出轴通过刷杆11将振动能量传导到植毛板121以及背板122上,再通过植毛板121传导到刷毛13上。
请参阅图6,植毛板121大致呈板状,并用于固定刷毛13,植毛板121包括相背设置的植毛面121a和背面121b,刷毛13自植毛面121a上延伸而出,也即,植毛面121a为供刷毛13自植毛板121内部穿出的表面,背面121b与植毛面121a相背设置,并与背板122相对设置。在用户刷牙时,植毛面121a为朝向用户牙齿的表面,背面121b为背离用户牙齿的表面。进一步地,植毛板121还包括位于植毛面 121a与背面121b之间的周侧面121c。
背板122设置于植毛板121的背离刷毛13的一侧,也即,背板122与植毛板121的背面121b相对设置,背板122的部分区域与背面121b间隔设置以构设出填充槽12a,该填充槽12a用于供软胶件14填充其中,以提高软胶件14与刷板12之间的连接稳定性。且进一步地,沿长度方向AA,背板122包括相对靠近刷杆11的第一连接端1221以及相对远离刷杆11的第二连接端1222,背板122通过第一连接端1221以及第二连接端1222中的至少一端与植毛板121连接,从而使得背板122与植毛板121固定连接。
请参阅图2-7,软胶件14包覆背板122,以使背板122整体不外漏。在用户刷牙过程中,刷头10的背部为通过软胶件14与用户口腔如牙齿或者牙龈接触,而不是通过背板122与用户口腔接触,在刷头10的高频振动过程中,由于软胶件14的材质较软,容易发生弹性形变,因此,能够起到较好地缓震作用,能够有效保护用户口腔。
请参阅图3以及图6,进一步地,软胶件14还填充于填充槽12a内,软胶件14还包覆背板122,进而增加软胶件14与植毛板121以及背板122的连接面积,增加软胶件14与刷板12整体的连接稳定性,降低软胶件14从刷板12上脱落的分风险。
请参阅图6,更进一步地,软胶件14至少包覆植毛板121至少部分周侧面121c,如此,一方面,刷头10的周侧面121c也是至少部分通过软胶件14与用户口腔如牙齿或者牙龈接触,而不是通过周侧面121c与用户口腔直接接触。在刷头10的高频振动过程中,由于软胶件14的材质较软,容易发生弹性形变,因此,能够起到较好地缓震作用,能够有效保护用户口腔。示例性的,软胶件14可呈一圈式的包裹部分周侧面121c或者包裹全部周侧面121c,可以增加软胶件14与植毛板121的周侧面121c的接触面积,进而提高软胶件14与植毛板121之间的连接稳定性,防止软胶件14从刷板12上脱落。
综上,通过将背板122的部分区域与植毛板121的背面121b之间间隔设置,以构设出填充槽12a,并通过进一步设置软胶件14,包覆背板122并填充至填充槽12a,软胶件14还覆盖背面121b,且软胶至少包覆部分周侧面121c,使得本实施例的刷头10具有两个方面的效果:
第一,就缓震效果而言,由于软胶件14包覆背板122以及植毛板121的背面121b,因此,刷头10的背部为通过软胶件14与用户口腔接触,且软胶件14还至少包覆植毛板121的至少部分周侧面121c,因此,刷头10的周侧为通过软胶件14与用户口腔接触,而刷头10的前侧则通过刷毛13与用户口腔接触。综合来看,除了刷毛13与用户口腔接触之外,植毛板121几乎不与用户口腔接触,背板122也不会与用户口腔接触,刷头10除了刷毛13所在的前侧之外,几乎均通过软胶件14与用户口腔接触,由于软胶件14的材质较软,容易发生弹性形变,因此,能够起到较好地缓震作用,能够有效保护用户口腔;
第二,就软胶件14与刷板12的连接稳定而言,由于软胶件14填充于填充槽12a,而填充槽12a为背板122沿刷板12的厚度方向CC与植毛板121间隔设置形成,因此,填充槽12a与软胶件14之间相互制约,使得软胶件14不能沿刷板12的厚度方向CC松动而脱离刷板12。再者,由于软胶件14至少包覆至少部分周侧面121c,因此,植毛板121的周侧面121c与软胶件14之间也相互制约,使得软胶件14不能沿刷板12所在平面内的任意方向松动而脱离刷板12。此外,软胶件14可以在刷板12上注塑成型,以填满上述填充槽12a,并包覆背板122、背面121b以及至少部分周侧面121c,软胶件14与背板122以及植毛板121之间具有更强的结合力度。因此,软胶件14与刷头10之间具有较佳地连接稳定性,即使刷头10在高频振动的场景下使用很长时间后,也不容易从刷板12上脱落。
请参阅图7-10,在一些实施例中,填充槽12a沿宽度方向BB贯穿刷板12,以在宽度方向BB形成相对设置的两个填充槽口12b,填充槽口12b用于在注塑时供软胶流入填充槽12a并成型出第一填充部141,软胶件14包括该第一填充部141。通过在刷板12的宽度方向BB上形成两个相对设置的填充槽口12b,该填充槽口12b与填充槽12a的内部连通。在注塑形成软胶件14的过程中,液态软胶沿填充槽口12b流入填充槽12a内,并填满填充槽12a。在液态软胶固化后,填充槽12a内的软胶部分形成第一填充部141,该第一填充部141被夹设于植毛板121与背板122之间,受到植毛板121以及背板122的制 约。且第一填充部141可与填充槽12a的槽壁直接连接,从而增加第一填充部141与刷板12之间的连接稳定性,且第一填充部141与软胶件14的其他部分一体注塑成型,因此,可以增强软胶件14整体与刷板12之间的连接稳定性。
通过设置两个填充槽口12b,可以加快液态软胶流入填充槽12a内的速度。此外,两个相对设置的填充槽口12b,可以使得液态软胶在两个填充槽口12b之间流动,而使得液态软胶可以充满填充槽12a。若仅设置一个填充槽口12b时,通过该一个填充槽口12b注胶时,由于液体胶体存在表面张力,可能导致液态软胶直接封堵该填充槽口12b,导致填充槽12a内的空气无法排出,最终导致液态软胶无法完全填满填充槽12a。两个或者两个以上相互连通的填充槽口12b则可避免该问题。液态软胶填充填充槽12a的同时,或者之后,会包覆在周侧面121c上,既可实现向填充槽12a注胶,又可实现对周侧面121c进行包胶,工艺以及整体结构简单,易于成型。
需要说明的是,填充槽12a也可以是在其他方向上如长度方向AA上贯穿刷板12以形成两个相对设置的填充槽口12b。
请参阅图7,在一些实施例中,沿刷板12的厚度方向CC,软胶件14在填充槽口12b处的厚度大于其他位置的厚度,以在刷头10背部形成外软胶轮廓142。通过在刷头10背部形成外软胶轮廓142,使得软胶件14在该位置的厚度大于其他位置的厚度,在刷牙过程中,软胶件14的背部通过外软胶轮廓142与用户口腔接触,外软胶轮廓142与用户口腔的接触面积更少,且更容易发生形变,因此能够在软胶件14背部与用户口腔接触时,有效地进行减震,避免刷头10大力地打在牙齿上,因此能够有效的保护牙齿。
请参阅图6-8,在一些实施例中,刷杆11包括与刷板12连接的连接段111,连接段111与植毛板121以及背板122中的至少一个连接。软胶件14还成环状包覆在连接段111上,也即,软胶件14还包括套接部143,套接部143套接于连接段111。如此,可以避免软胶件14沿刷杆11的径向脱出。
且进一步地,如图8所示,套接部143具有供连接段111穿过的套接孔143a,套接孔143a的孔径小于刷板12的沿宽度方向BB的宽度,由于刷板12对套接部143的阻挡,套接部143不能沿长度方向AA从连接段111上脱出,因此,可以进一步加强软胶件14与刷板12以及刷杆11的连接稳定性。
请参阅图6,在一些实施例中,沿长度方向AA,填充槽12a具有第一长度,植毛板121具有第二长度,第一长度与第二长度的比值大于或者等于1/2。如此,使得填充槽12a以及填充于填充槽12a内的软胶部分,也即前述的第一填充部141具有较长的长度,不仅可以提供更大的缓震范围,而且可以增大第一填充部141与填充槽12a槽壁也即植毛板121的背面121b以及背板122内壁面的连接面积,进而增强第一填充部141与植毛板121以及背板122之间的连接稳定性。
此外,填充槽12a较长,也可以使得植毛板121以及背板122更容易发生形变,进而更适应牙齿结构的弧形排布结构,使得植毛板121上的刷毛13更容易贴合于用户齿面,有利于提高洁牙效果。
请继续参阅图6,在一些实施例中,沿刷板12的厚度方向CC,填充槽12a的最大厚度大于或者等于2mm且小于或者等于5mm,使得填充槽12a具有较为合适的厚度。一方面,填充槽12a的厚度足够大,在注塑时可以使得液态软胶填充槽12a比较容易流入填充槽12a内而填满填充槽12a。另一方面,填充槽12a的最大厚度不至于过大,而使得刷头10具有较为合适的整体厚度,在刷头10放入用户口腔后,可以减少异物感。
若填充槽12a的最大厚度小于2mm,在注塑时会使得液态软胶较难流入填充槽12a内而填满填充槽12a,存在填充槽12a无法被软胶件14填满而存在气泡的风险,且若填充槽12a的最大厚度小于2mm,则第一填充部141的厚度也必然小于2mm,第一填充部141容易断裂,导致软胶件14容易从刷板12上脱落。
若填充槽12a的最大厚度大于5mm,填充槽12a的厚度太大,另需加上植毛板121以及背板122的厚度作为刷头10的整体厚度,刷头10的整体厚度太大,刷头10入口时,用户需要张大嘴巴,给使用带来不便,且太厚的刷头10在用户口中异物感也会增加,且移动比较困难,导致整体刷牙舒适度下降。
请参阅图7,在一些实施例中,沿刷板12的宽度方向BB,背板122具有第一宽度,植毛板121具 有第二宽度,第一宽度小于第二宽度,也即,背板122的宽度小于植毛板121的宽度。如此,前述的填充槽口12b的开口更大,在注塑时,更便于液体胶体流入填充槽12a中,且可以使得填充槽口12b处具有更多的软胶,起到更好地缓震作用。
请参阅图6,在一些实施例中,沿刷板12的厚度方向CC,背板122具有第一厚度,植毛板121具有第二厚度,第一厚度小于第二厚度,也即,背板122的厚度小于植毛板121的厚度,如此,可以使得刷毛13根部更深、更长地植入植毛板121内,从而提高刷毛13与植毛板121的连接稳定性。此外,背板122的厚度相较于植毛板121更薄,可以有效地减薄刷头10的整体厚度,降低用户刷牙时的异物感和不适感。
请继续参阅图6,在一些实施例中,沿刷板12的厚度方向CC,刷板12的厚度(也即植毛板121、填充槽12a与背板122三者的总厚度)大于或者等于3.5mm,且小于或者等于小于7mm,如此,使得刷板12具有较为合适的厚度。在该厚度范围内,一方面,可以合理分配植毛板121、填充槽12a以及背板122的厚度,使得植毛板121具有较厚的厚度固定刷毛13,使得填充槽12a具有较厚的厚度去填充第一填充部141,以及使得背板122具有较强的强度而不易断裂。另一方面,使得刷板12的厚度不至于太大,使得软胶件14与刷板12的总厚度也不至于太大而影响刷牙舒适度。
若刷板12的厚度小于3.5mm,刷板12的整体厚度太薄,植毛板121、填充槽12a以及背板122的厚度中的至少一个厚度太薄。若植毛板121厚度太薄,不仅不便于植毛,植毛过程难度剧增,而且植毛后则对刷毛13的固定性能将下降。若填充槽12a的厚度太薄,则不便于填充第一填充部141,可能导致液态胶体无法填入填充槽12a或者导致第一填充部141厚度太薄而降低软胶件14与刷板12的连接稳定性。若背板122厚度太薄,则背板122强度不够,容易断裂。
若刷板12的厚度大于7mm,刷板12的厚度太大,使得软胶件14与刷板12的总厚度太大,异物感与刷牙不适感均会增加。
请继续参阅图6,在一些实施例中,在刷板12的厚度方向CC上,植毛面121a相对于软胶件14凸出于软胶件14,以使周侧面121c部分外露于软胶件14。此时,软胶件14仅包裹了植毛板121的周侧面121c靠近背面121b的部分区域,周侧面121c的靠近植毛面121a的区域未被软胶件14包裹,也即,软胶件14未全部包括周侧面121c,部分周侧面121c与植毛面121a外露于软胶件14,如此,在注塑过程中,液态胶体不会流到植毛面121a上而封堵植毛孔121d,影响植毛。
请继续参阅图11,在一些实施例中,背板122同时通过第一连接端1221以及第二连接端1222与植毛板121连接,填充槽12a形成于第一连接端1221与第二连接端1222之间,如此,通过背板122两端与植毛板121连接,实现多点连接,可以加强背板122与植毛板121之间的连接稳定性。此外,第一连接端1221以及第二连接端1222沿长度方向AA依次设置,第一填充部141设置于填充槽12a内,第一连接端1221以及第二连接端1222可以阻挡第一填充部141沿长度方向AA移动,从而提高软胶件14与刷板12之间的连接稳定性。
请参阅图12,在另一些实施例中,背板122通过第一连接端1221与植毛板121连接,第二连接端1222悬空设置,第二连接端1222与背面121b之间形成填充槽口12b,结合前述实施例中,填充槽12a沿宽度方向BB贯穿刷板12而形成两个相对设置的填充槽口12b,此时,除了第一连接端1221与植毛板121连接外,背板122的其他位置均不与植毛板121连接而形成填充槽12a,除了第一连接端1221所在侧,填充槽12a的其他侧均形成填充槽口12b,如此,更便于液态软胶更快速、充分地填充于填充槽12a内。
请参阅图13,在又一些实施例中,背板122通过第二连接端1222与植毛板121连接,第一连接端1221悬空设置,第一连接端1221与背面121b之间形成填充槽口12b,结合前述实施例中,填充槽12a沿宽度方向BB贯穿刷板12而形成两个相对设置的填充槽口12b,此时,除了第二连接端1222与植毛板121连接外,背板122的其他位置均不与植毛板121连接而形成填充槽12a,除了第二连接端1222所在侧,填充槽12a的其他侧均形成填充槽口12b,如此,更便于液态软胶更快速、充分地填充于填充槽12a内。
请参阅图11-13,在一些实施例中,刷板12还包括一个或者多个连接部123,连接部123设置于填充槽12a内,且连接背面121b以及背板122。通过连接部123将背板122与植毛板121连接,可以进一步提高背板122与植毛板121之间的连接强度,降低背板122从植毛板121脱落的风险。
由于背板122也大致沿长度方向AA延伸,在连接部123包括多个时,多个连接部123沿长度方向AA间隔排布,并连接背板122以及植毛板121,也即多个连接部123沿长度方向AA排布并呈多点式连接背板122以及植毛板121,如此,可以对背板122的中部实现多点支撑,防止背板122从中部断裂。尤其是背板122只通过第一连接端1221或者第二连接端1222连接时,另一端处于悬空状态,与植毛板121连接的第一连接端1221或者第二连接端1222更容易断裂,通过设置一个或者多个连接部123,可以分散第一连接端1221或者第二连接端1222的受力,背板122更不容易相对于植毛板121断裂而脱落。
此外,多个连接部123还可以对填充于连接部123之间的第一填充部141进行限位,从而将第一填充部141稳固在填充槽12a内,使得具有该第一填充部141的软胶件14更不易于从刷板12上脱落。
请参阅图3,在一些实施例中,植毛板121与背板122一体成型,如此,不仅可以简化植毛板121与背板122之间的连接工艺,而且可以提高植毛板121与背板122之间的连接稳定性。此外,一体构件成型次数少,加工效率高,具有较优的尺寸一致性。
在一些实施例中,植毛板121与刷杆11一体成型,如此,不仅可以简化植毛板121与刷杆11之间的连接工艺,而且可以提高植毛板121与刷杆11之间的连接稳定性。此外,一体构件成型次数少,加工效率高,具有较优的尺寸一致性。
在一些实施例中,背板122与刷杆11一体成型,如此,不仅可以简化背板122与刷杆11之间的连接工艺,而且可以提高背板122与刷杆11之间的连接稳定性。此外,一体构件成型次数少,加工效率高,具有较优的尺寸一致性。
在一些实施例中,植毛板121、背板122与刷杆11三者一体成型。如此,不仅可以简化植毛板121、背板122与刷杆11三者之间的连接工艺,而且可以提高植毛板121、背板122与刷杆11之间的连接稳定性。此外,一体构件成型次数少,加工效率高,具有较优的尺寸一致性。
在一些实施例中,植毛板121与背板122分体设置,也即植毛板121与背板122分别独自制造再进行连接,且植毛板121与背板122中的一个与刷杆11一体成型,从而简化植毛板121或者背板122与刷杆11的连接工艺,提高植毛板121或者背板122与刷杆11的连接工艺。进一步地,请参阅图6,刷头10还包括连接件15,连接件15与植毛板121一体成型,第一连接端1221以及第二连接端1222中的至少一个通过连接件15与植毛板121连接,连接件15以及植毛板121的硬度小于或者等于软胶件14的硬度。如此,植毛板121更容易发生弹性形变,以使得植毛板121上的刷毛13更贴合牙齿,达到更好的洁牙效果。
在一些实施例中,植毛板121和背板122为分体构件,植毛板121与刷杆11连接为一体,背板122通过连接件15连接在植毛板121上,连接件15较软胶件14质硬或者连接件15与软件件材质相同。或者植毛板121与背板122为分体构件,背板122与刷杆11连接为一体,植毛板121为独立部件,植毛板121通过连接件15连接在背板122上,连接件15较软胶件14质硬或者连接件15与软件件材质相同。植毛板121和背板122为分体式结构,制造更加灵活,连接件15的材质可以选择更软,缓震效果更好。
请参阅图6,在一些实施例中,植毛面121a上开设有多个植毛孔121d,植毛孔121d为盲孔,刷头10还包括铜片(图中未示出),刷毛13的根部通过铜片安装于植毛孔121d内。也即,植毛孔121d不沿厚度方向CC贯穿植毛板121,刷毛13通过有铜植毛工艺固定在植毛板121上,如此可以使得植毛板121较薄,并且植毛板121叠加背板122和软胶件14的加强效果,整体的刷板12强度能够得到保证,刷头10整体又不会太厚。
此外,植毛板121与背板122不间隔的位置由于无法设置通孔,没有烫毛空间,若采用无铜植毛工艺,将会导致植毛板121的植毛面121a积占比减少,植毛板121空置边缘过大,影响清洁效果。也即,本实施例采用有铜植毛工艺,可以在植毛面121a上设置尽可能多的植毛孔121d并通过铜片植入尽可能多的刷毛13,提高同一植毛面121a的植毛密度,进而提高刷头10的洁牙效率。
此外,通过有铜植毛工艺,植毛板121与背板122之间的连接位置无需留有烫毛空间,因此,可以使得植毛板121与背板122一体成型,可以简化植毛板121与背板122的连接工艺,提高植毛板121与背板122之间的连接强度。
在一些实施例中,植毛面121a上开设有多个植毛孔121d,植毛孔121d为通孔,刷毛13的根部穿设于植毛孔121d内,且刷毛13的穿出背面121b的部分与植毛板121熔接(熔接也即通过烫毛工艺将刷毛13的穿出背面121b的部分熔解,并与植毛板121的背面121b连接在一起),进而将刷毛13固定在植毛板121上。
且进一步地,通过将植毛板121与背板122分体设置,如此,即使在背板122与植毛板121的连接位置,也可以设置植毛孔121d进行植毛,植毛后再将植毛板121与背板122连接,因此,可以在植毛面121a上设置尽可能多的植毛孔121d并植入尽可能多的刷毛13,提高同一植毛面121a上的植毛密度,进而提高刷头10的洁牙效率。若植毛板121与背板122一体成型,则不能够在植毛板121与背板122的连接位置处设置植毛孔11d,也就无法将刷毛13的穿出背面121b的部分与植毛板121熔接,导致植毛密度降低。
此外,通过无铜植毛工艺,能够降低对植毛板121厚度的要求,植毛板121可以做的更软,刷毛13的浮动性、缓震性更好,刷毛13可以更贴合齿面,刷牙舒适性更高。
请参阅图7-11,在一些实施例中,周侧面121c具有一个或者多个凹槽121e,多个凹槽121e间隔设置,凹槽121e的两端分别贯通至植毛面121a与背面121b,凹槽121e与填充槽12a连通,软胶件14还包括填充于凹槽121e的第二填充部144。也即,在注塑过程中,液态胶体不仅可以填充填充槽12a形成第一填充部141,还会填充于凹槽121e中形成第二填充部144,如此,不仅可以增大软胶件14与植毛板121的连接面积,提高软胶件14与植毛板121的连接稳定性。而且凹槽121e与软胶件14相互限位制约,可以防止软胶件14相对于植毛板121松动。凹槽121e还能够提升植毛板121的弯曲变形能力,提升缓震效果。
请参阅图7,在一些实施例中,凹槽121e具有与刷板12的厚度方向CC垂直的凹槽截面,自背面121b到植毛面121a的方向上,凹槽截面逐渐增大,也即,自植毛面121a到背面121b的方向上,凹槽截面逐渐减小,相应地,自植毛面121a到背面121b的方向上,第二填充部144的截面也逐渐减小,如此,软胶件14包覆在周侧面121c后,软胶件14越向刷头10后侧移动,第二填充部144与凹槽121e的槽壁相互挤压的程度就越大,软胶件14与刷板12的结合力越大。
请参阅图7,在一些实施例中,植毛板121的周侧面121c包括两个位于刷杆11的中轴线相背两侧的子侧面,每一子侧面上均设置有多个凹槽121e,如此,软胶件14通过填充多个凹槽121e而在多个位置与植毛板121进行结合,可以进一步提高软胶件14与植毛板121的连接稳定性。
请参阅图7以及图11,进一步地,植毛板121包括远离刷杆11设置的自由端,靠近自由端的凹槽121e的开槽尺寸小于位于子侧面中部的凹槽121e的开槽尺寸,侧面中部的凹槽121e的开槽尺寸更大,可以使得植毛板121在中部区域更容易发生形变,有利于提高缓震效果。靠近自由端的凹槽121e的开槽尺寸更小,有利于留出更多的植毛面121a面积,提高植毛密度,提升洁牙效果。
以上内容是从一个方面介绍了能够对口腔进行保护,并且软胶件14与刷板12连接牢固的刷头10的结构。然而,本申请能实现对口腔进行保护,并且软胶件14与刷板12连接牢固的刷头10的结构不仅于此。
请参阅图14和图15,在刷头10的又一实施例中,刷头10同样包括刷杆11、刷板12、刷毛13以及软胶件14。本实施例的刷板12可以设置有填充槽12a,当然也可以不设置有填充槽12a,请一并参阅图16和图17,刷板12与刷杆11的沿长度方向AA的一端连接。刷板12具有宽度方向BB以及厚度方向CC,宽度方向BB、厚度方向CC与长度方向AA两两垂直。
请参阅图17至图18,刷板12具有沿厚度方向CC相背设置的植毛面1201以及外背面1202,外背面1202为上一实施例中背板与植毛面1201相背的一面,植毛面1201用于设置刷毛13,外背面1202与刷毛13相背设置。结合上一实施例的内容,植毛板的周侧面以及背板位于植毛面与外背面之间的外 壁面部分一同构成刷板的外周面1203,外周面1203沿厚度方向CC自植毛面1201延伸至外背面1202。
外周面1203上设置有用于与软胶件14结合的结合部124。示例性的,如图17所示,结合部124包括第一台阶结构1241,或者,如图18所示,结合部124包括凸棱结构1242,或者,结合部124同时包括第一台阶结构1241以及凸棱结构1242。比较图17以及图18可知,第一台阶结构1241与凸棱结构1242的区别在于:第一台阶结构1241相对于一侧的外周面1203区域凸起,而凸棱结构1242相对于两侧的外周面1203区域凸起。需要说明的是,结合部124主要是为了在外周面1203上形成凸起结构,以使得结合部124能够嵌入到软胶件14中,除了第一台阶结构1241以及凸棱结构1242,其他类似的结构也可以作为本实施例的结合部124。
请继续参阅图15-18,进一步地,刷板12通过注塑成型。沿厚度方向CC且自结合部124指向植毛面1201,刷板12的与厚度方向CC垂直的第一横截面不变或者逐渐减小;沿厚度方向CC且自结合部124指向外背面1202,刷板12的与厚度方向CC垂直的第二横截面不变或者逐渐减小。也即,以结合部124为界,结合部124至植毛面1201之间的部分具有的多个第一横截面,且自结合部124向刷毛13方向,第一横截面尺寸不变或呈减缩设置,同理,结合部124至外背面1202之间的部分具有第二横截面,且自结合部124向背离刷毛13方向,第二横截面尺寸不变或呈减缩设置。
如此,在注塑成型出刷板12的过程中,能够以结合部124所在某一平面为合模面(该合模面与厚度方向CC垂直),通过第一模具(例如上模)以及第二模具(例如下模)在合模面处合模形成型腔,向型腔内注入注塑液体,待注塑液体固化后即可形成刷板12。之后进行脱模,由于第一横截面尺寸不变或呈减缩设置,可以使得第一模具顺利脱模,同理,由于第二横截面尺寸不变或呈减缩设置,可以使得第二模具顺利脱模。脱模后刷板12才能被取出。
刷毛13设置于刷板12上且自植毛面1201延伸出,也即刷毛13的根部埋设于刷板12中并从植毛面1201伸出刷板12外。刷毛13可以通过有铜植毛工艺或者无铜植毛工艺设置于刷板12上。
软胶件14在刷板12外注塑成型且与刷板12连接。具体地,在通过注塑工艺成型出刷板12后,可以通过二次注塑工艺或者双色注塑工艺进一步在刷板12外注塑出软胶件14,同时实现软胶件14与刷板12之间的相互连接。
在软胶件14与刷板12一体注塑成型后,软胶件14包覆在刷板12的外背面1202以及外周面1203,如此,可以增大软胶件14与刷板12的连接面积,增强软胶件14与刷板12之间的连接稳定性。具体而言,刷板12的外背面1202阻挡软胶件14向靠近刷毛13的方向脱离,刷板12的外周面1203阻挡软胶件14横向(横向为与厚度方向CC垂直的任意方向)移动而脱离刷板12。
由于软胶件14包覆外周面1203,结合部124设置于外周面1203上,因此,软胶件14也包覆在结合部124上。具体地,请参阅图19,软胶件14具有与外周面1203相对设置的内周面14a,且内周面14a在软胶件14的注塑过程中由于结合部124的存在而形成配合槽14b,结合部124嵌入配合槽14b中,使得结合部124与配合槽14b嵌套配合。如此,不仅可以防止软胶件14沿厚度方向CC向靠近或者远离刷毛13的方向脱离刷板12,而且也可以防止软胶件14横向移动脱离刷板12,可以进一步加强软胶件14与刷板12之间的连接稳定性。即使刷头10长时间处于潮湿环境中,也可以保证软胶件14不会从刷板12上脱离。
综上,本实施例中,通过在刷板12外注塑成型出软胶件14,在注塑过程中实现软胶件14与刷板12之间的紧密连接。进一步地,软胶件14包覆在刷板12的外背面1202以及外周面1203,可以增大软胶件14与刷板12的连接面积,增强软胶件14与刷板12之间的连接稳定性。具体而言,刷板12的外背面1202阻挡软胶件14向靠近刷毛13的方向脱离,刷板12的外周面1203阻挡软胶件14沿横向移动而脱离刷板12。
更进一步地,通过在刷板12的外周面1203设置有结合部124,结合部124包括第一台阶结构1241以及凸棱结构1242中的至少一种,软胶件14包覆在结合部124上。如此,不仅可以防止软胶件14沿厚度方向CC向靠近或者远离刷毛13的方向脱离刷板12,而且也可以防止软胶件14横向移动脱离刷板12,可以进一步加强软胶件14与刷板12之间的连接稳定性。即使刷头10长时间处于潮湿环境中,也 可以保证软胶件14不会从刷板12上脱离。
此外,沿厚度方向CC且自结合部124指向植毛面1201,刷板12的与厚度方向CC垂直的第一横截面不变或者逐渐减小;沿厚度方向CC且自结合部124指向外背面1202,刷板12的与厚度方向CC垂直的第二横截面不变或者逐渐减小。如此,在注塑成型出刷板12的过程中,能够以结合部124所在的某一平面为合模面,通过第一模具(例如上模)以及第二模具(例如下模)在合模面处合模以形成型腔,并向型腔内注入注塑液体,待注塑液体固化后即可形成刷板12。在之后的脱模过程中,由于第一横截面尺寸不变或呈减缩设置,可以使得第一模具顺利脱模,同理,由于第二横截面尺寸不变或呈减缩设置,可以使得第二模具顺利脱模。脱模后刷板12才能被取出。
请参阅图20,在一些实施例中,刷板12被结合部124沿厚度方向CC划分成第一段12a1以及第二段12a2,第一段12a1具有第一横截面,第二段12a2具有第二横截面,第一横截面小于第二横截面,以在外周面1203上形成第一台阶结构1241,且第一台阶结构1241,第一台阶结构1241具有第一台阶面1243,第一台阶面1243朝向植毛面1201设置。如此,软胶件14向后方也即向远离刷毛13的方向运动时,将被第一台阶结构1241的第一台阶面1243扣住,软胶件14与刷板12之间形成倒扣,能够防止软胶件14从刷板12向远离刷毛13的方向脱离。
请继续参阅图图19和图20,在一些实施例中,结合部124环绕外周面1203设置,如此,软胶件14与结合部124形成一圈倒扣结构,倒扣效果更佳,软胶件14更不易从刷板12上脱离。
在一些实施例中,第一段12a1具有植毛面1201,第二段12a2具有外背面1202,外周面1203具有凹槽1205。
在一些实施例中,凹槽1205自植毛面1201贯穿至外背面1202。由于存在凹槽1205,在注塑成型出软胶件14过程中,注塑液体将填充于凹槽1205并形成凸部1401,凸部1401嵌入凹槽1205中并与凹槽1205的槽壁相结合,如此,可以增大软胶件14与刷板12之间的连接面积,进一步加强软胶件14与刷板12之间的连接稳定性。
需要说明的是,在凹槽1205自植毛面1201贯穿至外背面1202时,应该不影响第一模具以及第二磨具的脱模操作,因此,凹槽1205的与厚度方向CC垂直的横截面保持不变,或者,第一模具以及第二模具的合模面对应凹槽的最小截面,自该最小截面指向植毛面1201,凹槽1205的横截面逐渐增大,且自该最小截面指向背面12e,凹槽1205的也横截面逐渐增大。如此,便于第一模具以及第二模具相背远离运动进行脱模,而不会受到凹槽1205的阻碍。
在另一实施例中,凹槽1205设置于第一段12a1并沿厚度方向CC贯穿至植毛面12e。示例性的,设置在第一段12a1上的凹槽1205,可以自结合部124沿厚度方向CC贯穿至植毛面1201,沿厚度方向CC且自结合部124指向植毛面1201,凹槽1205的横截面面积逐渐增大,也即,凹槽1205仅形成在第一段12a1上,凹槽1205为盲槽(不贯穿至外背面1202)。可以理解的是,在注塑成型刷板12的过程中,为了成型出凹槽1205,第一模具需具有与凹槽1205对应的凸起部。因此,将凹槽1205的横截面设置为往靠近植毛面1201的方向横截面积逐渐增大,如此,在脱模时,便于第一模具上的凸起部从凹槽1205中脱出。
由于存在凹槽1205,在注塑成型出软胶件14过程中,注塑液体将填充于凹槽1205并形成凸部1401,凸部1401嵌入凹槽1205中并与凹槽1205的槽壁相结合,并且由于凹槽1205设置为往靠近植毛面1201的方向横截面积逐渐增大,因此,凸部1401的横截面积也为往靠近植毛面1201的方向也逐渐增大,如此,在软胶件14向远离刷毛13的方向运动时,凸部1401与凹槽1205也形成倒扣,可以进一步防止软胶件14从刷板12上脱离。可以理解的是,凹槽1205可以不是自结合部124沿厚度方向CC贯穿至植毛面1201,而是自结合部124与植毛面1201之间的任意位置,沿厚度方向CC贯穿至植毛面1201,同样可以达到上述效果。
请继续参阅图20,在一些实施例中,刷杆11与刷板12一体注塑成型,刷杆11具有与厚度方向CC垂直的中分面D,结合部124具有与厚度方向CC垂直的最大横截面,最大横截面与中分面D共面。刷杆11大致呈圆柱状,刷杆11在中分面D具有最大截面,因此,刷杆11的最大截面与刷板12的最大横截 面共面,将刷杆11与刷板12的最大横截面作为合模面,如此,可以将刷杆11与刷板12一体注塑成型,且便于第一模具与第二模具脱模。
请继续参阅图20,在一些实施例中,第一段12a1沿厚度方向CC具有第一厚度D1,第二段12a2沿厚度方向CC具有第二厚度D2,第一厚度D1小于第二厚度D2。如此,可使得结合部124相对于外背面1202更靠近植毛面1201,软胶件14更多地包覆于第二段12a2,与第二段12a2的结合面积更大,第二段12a2可以更有力地阻挡软胶件14从刷板12上向远离刷毛13的方向脱落。
请参阅图19和图20,在一些实施例中,软胶件14还包括套接部143,套接部143呈环状套接于刷杆11。如此,可以防止软胶件14从刷杆11上脱离,若软胶件14无法从刷杆11上脱离,则软胶件14更难以从刷板12上脱离,因此,可以间接地加强软胶件14与刷板12的连接稳定性。
且进一步地,结合图15以及图19可知,套接部143具有供刷杆11穿过的套接孔143a,套接孔143a的孔径小于刷板12的沿宽度方向BB的宽度,由于刷板12对套接部143的阻挡,套接部143不能沿长度方向AA从刷杆11上脱出,因此,可以进一步加强软胶件14与刷板12以及刷杆11的连接稳定性。
结合图15以及图19可知,在一些实施例中,套接部143套接于刷杆11的靠近刷板12的一段(也即下述的第二杆段11b),且套接部143沿长度方向AA的长度L1小于或者等于20mm,以使刷杆11部分外露于软胶件14。也即,套接部143并非完全包裹刷杆11,刷杆11的远离刷板12的一段未被套接部143套接。由于软胶件14与用户口腔黏膜的摩擦力比较大,若套接部143完全包裹刷杆11,在刷头10入口后,除了刷毛13所在的植毛面1201,刷头10的其他区域均通过软胶件14与用户口腔黏膜接触,不仅导致刷头10在口腔内移动较为困难,而且导致用户不适。本实施例中,刷杆11的远离刷板12的一段未被套接部143套接。通过未被软胶件14包裹的刷杆11区域与用户口腔黏膜接触,便于移动刷头10,而且可以提高用户刷牙舒适度。
请参阅图20,在一些实施例中,刷杆11包括第一杆段11a以及第二杆段11b,第一杆段11a通过第二杆段11b连接刷板12,第一杆段11a的与长度方向AA垂直的横截面大于第二杆段11b的与长度方向AA垂直的横截面,换言之,第一杆段11a的直径小于第二杆段11b的直径,以使第一杆段11a与第二杆段11b之间形成第二台阶结构11c,第二台阶结构11c具有朝向刷板12设置的第二台阶面11c1。套接部143套接于第二杆段11b外并与第二台阶结构11c的第二台阶面11c1抵接。如此,可使得套接部143包裹第二杆段11b后,套接部143与第一杆段11a的表面平齐或者近乎平齐,套接部143的靠近第一杆段11a的边缘不会相对第一杆段11a的表面凸起太多,避免套接部143的边缘受力(例如刷牙时软胶件14受到口腔作用力)翘起并套在第一杆段11a的问题。
在一些实施例中,基于刷杆11与刷板12一体成型的实施例,第二台阶结构11c的与厚度方向CC垂直的最大横截面与中分面D共面。也即,第二台阶结构11c以中分面D为界,向远离中分面D的两侧,不存在倒扣结构或者阻碍第一模具以及第二模具脱模的障碍,保证第一模具以及第二模具能顺利脱模。
在一些实施例中,基于软胶件14与刷板12一体成型的方案,植毛面121a上开设有多个植毛孔(图中未示出),植毛孔为盲孔,刷头10还包括铜片(图中未示出),刷毛13的根部通过铜片安装于植毛孔内。也即,植毛孔不沿厚度方向CC贯穿刷板12,刷毛13通过有铜植毛工艺固定在刷板12上。如此,在刷杆11与刷板12一体成型后,直接在刷板12外注塑出软胶件14,之后,通过铜片将刷毛13根部固定于植毛孔内,工艺可靠且简单。
若采用无铜植毛工艺,则在成型出刷板12时,需一并成型出通孔,植毛时,需将刷毛13穿过通孔并在刷板12的外背面1202烫毛,将刷毛13一端与刷板12熔接,过程比较复杂,成本较高。
在一些实施例中,包覆在外周面1203的软胶件14不超出植毛面1201。如此,在注塑成型出软胶件14过程中,注塑液体不会流到植毛面1201上,避免注塑液体流到植毛面1201后,刷毛13之间相互粘连而导致刷毛13弹性以及自由度降低。
进一步地,在厚度方向CC上,软胶件14在外周面1203的边缘与结合部124的距离不大于3mm。如此,软胶件14在外周面1203的边缘与结合部124的距离较近,结合部124对软胶件14边缘的约束力更强。若软胶件14在外周面1203的边缘与结合部124的距离大于3mm,软胶件14边缘与结合部124 的距离过大,结合部124对软胶件的约束能力变弱,会增加软胶件14从刷板12上脱落的风险。
以上内容,从两个方面介绍了在使用过程中能进行口腔保护、并且自身结构牢固的刷头10的结构形式。除此之外,本申请还进一步对刷毛部分进行了结构改进,以提升口腔清理效果。
为了提升刷头10的清洁能力,请参照图21-图22所示,在本申请的又一实施例中,刷头10包括刷杆11、刷板12及刷毛30,刷杆11沿长度方向M延伸,刷板12连接于刷杆11在长度方向M上的一端,刷板12具有植毛面125,刷毛30的一端连接刷板12,刷毛30的另一端朝远离植毛面125的方向延伸,刷毛30包括增摩簇31,增摩簇31的表面粗糙度大于其他刷毛30的表面粗糙度,使得增摩簇31与待刷洗物之间的摩擦系数大于除增摩簇31之外的其余刷毛30与同一待刷洗物之间的摩擦系数。
以下结合图21-图26对刷头10的具体结构进行展开介绍。
如图21-图22所示,刷头10包括刷杆11、刷板12及刷毛30。
刷杆11作为刷头10中用于给刷板12提供支撑的部件,这里对刷杆11的具体制备材料不做限定,设计人员可根据实际需要对刷杆11的制备材料进行合理地选择。
刷杆11沿长度方向M延伸,例如,刷杆11可以是直杆,此时刷杆11的中轴线与长度方向M重合;刷杆11也可以是弯杆,此时刷杆11相互远离的两端点之间的连线与长度方向M重合。
刷板12作为刷头10中用于承载刷毛30的部件,这里对刷板12的具体形状不做限定,设计人员可根据实际需要对刷板12的形状进行合理设计,例如,刷板12的形状可以但不仅限于是矩形、圆形或椭圆形等。当然,这里对刷板12的具体制备材料也不做限定,设计人员同样可根据实际需要对刷板12的制备材料进行合理地选择。
刷板12连接于刷杆11在长度方向M上的一端,也即刷板12连接于刷杆11上,且刷板12沿平行于长度方向M朝远离刷杆11的方向延伸。
刷板12具有植毛面125,植毛面125可以整个是平面、也可以整个是曲面、还可以一部分是平面且剩余部分是曲面。
刷毛30作为刷头10中用于清洗待刷洗物的部件,这里对刷毛30的具体制备材料不做限定,设计人员可根据实际需要对刷毛30的制备材料进行合理地选择。例如,刷毛30的制备材料可以但不仅限于包括PA(Polyamide,尼龙)及PBT(Polyethylene terephthalate,聚对苯二甲酸二丁酯)中的一种或者多种。
刷毛30的一端连接刷板12,刷毛30的另一端朝远离植毛面125的方向延伸。
刷毛30包括增摩簇31,增摩簇31可以是混合刷丝311组成、也可以是单一刷丝311组成,举例而言,增摩簇31可以是不同材料的刷丝混合形成,也可以是同一材料单表面粗糙度不同的刷丝混合形成。至少部分增摩簇31的延伸方向与刷板12的植毛面125之间的夹角呈锐角或者钝角,也即至少部分增摩簇31相对刷板12的植毛面125倾斜设置,以使至少部分增摩簇31的自由端3131(下文有介绍)相对增摩簇31的根部向刷杆11方向倾斜,使增摩簇31向外扩张,增大增摩簇31与用户牙齿之间的接触面积,以提升刷头10的整体清洁能力。例如,增摩簇31的延伸方向与刷板12的植毛面125之间的夹角可以是85度也可以是95度。当然,增摩簇31的延伸方向还可以是与刷板12的植毛面125之间的夹角呈直角,也即,增摩簇31与植毛面125之间的夹角为90度。需要说明的是,当刷板12的植毛面125至少部分为曲面时,可以理解的是曲面是由无数个小平面拼接而成,至少部分增摩簇31中的每根刷丝相对曲面中的每一个小平面倾斜,从而使至少部分增摩簇31相对于植毛面125倾斜。
增摩簇31与待刷洗物之间的摩擦系数大于除增摩簇31之外的其余刷毛30与同一待刷洗物之间的摩擦系数。
基于本申请实施例中的刷头10,通过设计增摩簇31,且增摩簇31与待刷洗物之间的摩擦系数大于其余刷毛30与待刷洗物之间的摩擦系数,用户在刷牙过程中,增摩簇31与用户牙齿之间的摩擦力较大,使用户牙齿与刷毛30之间能够更加充分的摩擦,从而提高刷头10的整体清洁能力。
可以理解的是,根据待刷洗物的具体表现形式的不同,刷头10的应用场景也不尽相同。例如,当待刷洗物为餐具时,刷头10就是应用于洗碗刷上的刷头10;当待刷洗物为用户牙齿时,刷头10就是应 用于牙刷上的刷头10;当待刷洗物为马桶时,刷头10就是应用于马桶刷上的刷头10。为方便描述,以下以待刷洗物为用户牙齿,刷头10为应用于牙刷上的刷头10为例进行举例说明。
如图22所示,考虑到用户刷牙时,例如由于用户握持牙刷的握姿、或者用户的牙齿排布形状等诸多方面的因素,通常是靠近刷头10前端(刷板12远离刷杆11的一端)的刷毛30会与用户牙齿先接触,而靠近刷头10后端(刷板12靠近刷杆11的一端)的刷毛30与用户牙齿后接触,且在刷牙过程中,由于刷牙姿势的限制,靠近刷头10后端的刷毛30相对于用户牙齿抬起,因而靠近刷头10后端的刷毛30与用户牙齿的之间无法有效接触,使得该部分刷毛30与用户牙齿之间的摩擦力较小,导致清洁能力较差。为提高刷头10的整体清洁能力,故设计,在一些实施例中,刷板12的植毛面125具有第一区域1251和第二区域1252,第一区域1251和第二区域1252在长度方向M分布,且第一区域1251相较于第二区域1252更靠近刷杆11,刷毛30包括第一刷毛组30a和第二刷毛30组,第一刷毛组30a设置于第一区域1251,第一刷毛组30a至少包括增摩簇31,第二刷毛组30b设置于第二区域1252。该设计中,第一刷毛组30a至少包括增摩簇31,如此能够增大位于刷头10后端的第一刷毛组30a与用户牙齿之间的摩擦系数,故用户在刷牙时,能够增大第一刷毛组30a与用户牙齿之间的摩擦力,从而提高刷头10的整体清洁能力。
如图23-图26所示,考虑到增摩簇31与用户牙齿之间的摩擦系数大于除增摩簇31外的其他刷毛30与用户牙齿之间的摩擦系数,为使增摩簇31与用户牙齿之间具有较大的摩擦系数,关于增摩簇31的具体表现形式可以但不仅限于以下几种实施例。
如图23所示,在第一种实施例中,增摩簇31包括刷丝311和摩擦结构312,刷丝的外表面3111设有摩擦结构312,摩擦结构312凸出于刷丝的外表面3111。其中,摩擦结构312可以是设置于刷丝的外表面3111上的凸起,这里对凸起的具体形状不做限定,例如,凸起可以是半球形凸起、也可以是绕刷丝311的轴向设置的环形凸起。该设计中,通过在刷丝的外表面3111设计摩擦结构312,增大了刷丝的外表面3111的粗糙度,从而增大了增摩簇31与用户牙齿之间的摩擦系数。
如图24所示,在第二种实施例中,增摩簇的外表面313被构造成凹凸不平的形状,以增大增摩簇的外表面313与用户牙齿之间的摩擦系数。其中,增摩簇的外表面313可以单独由多个子平面拼接形成凹凸不平的形状、也可以单独由多个子曲面拼接形成凹凸不平的形状、还可以由多个子平面和多个子曲面共同拼接形成凹凸不平的形状。该设计中,通过将增摩簇的外表面313设计成凹凸不平的形状,增大了增摩簇的外表面313的粗糙度,从而增大了增摩簇31与用户牙齿之间的摩擦系数。
如图25和图26所示,在第三种实施例中,增摩簇31包括基材314和增摩颗粒315,基材314与增摩颗粒315一体成型形成,增摩颗粒315与用户牙齿之间的摩擦系数大于基材314与用户牙齿之间的摩擦系数,以增大增摩簇31与用户牙齿之间的摩擦系数。其中,基材314与增摩颗粒315之间可以通过3D打印的方式形成一体式结构、也可以通过注塑的方式形成一体式结构。增摩颗粒315可以但不仅限于包括碳酸钙颗粒。该设计中,通过设计基材314与增摩颗粒315一体成型,增大了增摩簇31的粗糙度,从而增大了增摩簇31与用户牙齿之间的摩擦系数。
如图21、图22和图24所示,增摩簇31具有远离刷板12的植毛面125的自由端3131以及位于自由端3131和植毛面125之间的侧壁面3132。考虑到用户刷牙过程中,由于用户施加在牙刷上的作用力的大小和方向的不同,以及刷毛30受力时会发生变形,会导致增摩簇31的不同部位与用户牙齿接触。例如,可以是增摩簇31远离刷板12的植毛面125的一端与用户牙齿接触,也可以是增摩簇31产生形变后其侧壁面3132与用户牙齿接触。关于增摩簇31的自由端3131与用户牙齿之间的摩擦系数、增摩簇31的侧壁面3132与用户牙齿之间的摩擦系数,同除增摩簇31之外的其余刷毛30与用户牙齿之间的摩擦系数的大小关系可以包括以下几种实施例中的一种或者多种。
在第一种实施例中,增摩簇31的自由端3131与用户牙齿之间的摩擦系数大于除增摩簇31之外的其余刷毛30与用户牙齿之间的摩擦系数。该设计中,通过设计增摩簇31的自由端3131与用户牙齿之间的摩擦系数大于除增摩簇31之外的其余刷毛30与用户牙齿之间的摩擦系数,当用户施加在牙刷上的作用力较小时,可以保证增摩簇31的自由端3131直接与用户牙齿有效接触,从而进一步提高刷头10 的整体清洁能力。
在第二种实施例中,增摩簇31的侧壁面3132与用户牙齿之间的摩擦系数大于除增摩簇31之外的其余刷毛30与用户牙齿之间的摩擦系数。该设计中,通过设计增摩簇31的侧壁面3132与用户牙齿之间的摩擦系数大于除增摩簇31之外的其余刷毛30与用户牙齿之间的摩擦系数,当用户施加在牙刷上的作用力较大时,增摩簇31产生形变后其侧壁面3132与用户牙齿有效接触,从而进一步提高刷头10的整体清洁能力。
如图22所示,考虑到刷毛30与用户牙齿频繁接触后会产生磨损,导致刷毛30的清洁能力下降,为使用户能够更加直观的获知刷毛30的磨损程度,以便于用户更换刷头10,故设计,刷毛30还包括颜色指示簇32,用户可根据颜色指示簇32的颜色的变化来指示刷毛30的磨损情况。颜色指示簇32的颜色至少与增摩簇31的颜色不同。关于导致颜色指示簇32的颜色变化的因素可以但不仅限于以下几种实施例中的一种或者多种。
在第一种实施例中,颜色指示簇32的颜色随着颜色指示簇32的使用次数的增加而发生改变。例如,随着颜色指示簇32的使用次数的增加,颜色指示簇32的颜色逐渐变浅,或者颜色指示簇32从某一颜色直接转变成另一颜色。该设计中,用户可以通过观察颜色指示簇32的颜色变化来直观判断刷毛30的磨损程度,以便于用户更换刷头10。
在第二种实施例中,颜色指示簇32的颜色随着颜色指示簇32的使用时间的增加而发生变化。例如,随着颜色指示簇32的使用时间的增加,颜色指示簇32的颜色逐渐变浅,或者颜色指示簇32从某一颜色直接转变成另一颜色。该设计中,用户可以通过观察颜色指示簇32的颜色变化来直观判断刷毛30的磨损程度,以便于用户更换刷头10。
如图22所示,考虑到颜色指示簇32的设计是用于方便用户通过观察颜色指示簇32的颜色变化来直观判断刷毛30的磨损程度,以便于用户更换刷头10,且颜色指示簇32与用户牙齿之间的摩擦系数小于增摩簇31与用户牙齿之间的摩擦系数。为进一步提升该刷头10的整体清洁能力,故设计,在一些实施例中,增摩簇31在刷板12的植毛面125上所占的面积大于颜色指示簇32在刷板12的植毛面125上所占的面积。该设计中,增摩簇31的数量越多,用户刷牙过程中刷毛30与用户牙齿之间的摩擦力越大,清洁能力越强。
如图22和图26所示,可以理解的是,刷毛30远离刷板12一侧的自由端3131可以位于同一平面内,也即刷毛30中的每根刷丝311的高度相同。考虑到用户牙齿呈弓形排布,为使用户在刷牙过程中,刷毛30能够与用户牙齿更贴合,故设计,刷毛30包括第一刷毛组30a和第二刷毛组30b,第一刷毛组30a相较于第二刷毛组30b更靠近刷杆11。且关于第一刷毛组30a和第二刷毛组30b的高度设计可以但不仅限于包括以下实施例中的一种或者多种。
在第一种实施例中,自刷杆11指向刷板12的方向,第一刷毛组30a的高度逐渐减小且第二刷毛组30b的高度逐渐增大。也就是说,第一刷毛组30a在靠近第二刷毛组30b的方向上逐渐变矮,第二刷毛组30b在远离第一刷毛组30a的方向上逐渐变高,换言之,自刷杆11指向刷板12的方向,第一刷毛组30a的自由端3131与刷板12的植毛面125之间的距离逐渐减小,第二刷毛组30b的自由端3131与刷板12的植毛面125之间的距离逐渐增大。该设计中,将第一刷毛组30a的高度和第二刷毛组30b的高度设计成上述的排布方式,使刷毛30能够与用户牙齿更贴合,提升用户刷牙过程中刷毛30与用户牙齿的贴合度,从而进一步提升刷头10清洁能力。
在第二种实施例中,第一刷毛组30a和第二刷毛组30b相互靠近的两端相对于刷板12的植毛面125等高。也就是说,第一刷毛组30a与第二刷毛组30b之间平滑过渡。该设计中,第一刷毛组30a的高度和第二刷毛组30b的高度设计成上述的排布方式,一方面使刷毛30能够与用户牙齿更贴合,提升用户刷牙过程中刷毛30与用户牙齿的贴合度,从而进一步提升刷头10清洁能力。
在第三种实施例中,在垂直于刷板12的植毛面125的方向上,第一刷毛组30a的高度低于第二刷毛组30b的高度。该设计中,将第一刷毛组30a的高度和第二刷毛组30b的高度设计成上述的排布方式,使刷毛30能够与用户牙齿更贴合,提升用户刷牙过程中刷毛30与用户牙齿的贴合度,从而进一步提升 刷头10清洁能力。
具体地,第二刷毛组30b远离第一刷毛组30a的一端,与第一刷毛组30a远离第二刷毛组30b的一端相对于刷板12的植毛面125的高度差△H(如图26所示)大于等于1毫米且小于等于4毫米。例如,两者之间的高度差△H的具体取值可以但不仅限于是1毫米、2毫米、3毫米或4毫米等。该设计中,通过合理的设计高度差△H的取值,使刷毛30整体能够与用户牙齿更贴合,提升用户刷牙过程中刷毛30与用户牙齿的贴合度,从而进一步提升刷头10清洁能力;若高度差△H小于1mm,刷毛30整体的高度变化相对比较平缓,故用户在刷牙过程中很容易出现位于刷板12中部的刷毛30与用户牙齿接触,而位于刷板12两端的刷毛30与用户牙齿不接触的情况,部分刷毛30无法起到有效的清洁效果,就会导致用户牙齿无法被有效清洁;若高度差△H大于4mm,刷毛30整体的高度变化相对比较陡峭,故用户在刷牙过程中很容易出现位于刷板12两端的刷毛30与用户牙齿接触,而位于刷板12中部的刷毛30与用户牙齿不接触的情况,部分刷毛30无法起到有效的清洁效果,就会导致用户牙齿无法被有效清洁。
如图22所示,为减少例如龋齿等口腔疾病的产生,故设计,刷毛30还包括第一含氟簇33和/或第二含氟簇34,其中,含氟簇是指刷毛30的制备材料中含有氟离子。关于第一含氟簇33与增摩簇31之间的排布方式、第二含氟簇34与颜色指示簇32之间的排布方式可以但不仅限于包括以下几种实施例的一种或者多种。
在第一种实施例中,增摩簇31环绕第一含氟簇33设置。其中,增摩簇31可以以第一含氟簇33为圆心,环绕第一含氟簇33一圈或者多圈设置。该设计中,通过设计第一含氟簇33,能够有效减少如龋齿等口腔疾病的产生。
在第二种实施例中,颜色指示簇32环绕第二含氟簇34设置。其中,颜色指示簇32可以以第二含氟簇34为圆心,环绕第二含氟簇34一圈或者多圈设置。该设计中,通过设计第二含氟簇34,能够有效减少如龋齿等口腔疾病的产生。
需要注意的是,当增摩簇31环绕第一含氟簇33设置,且颜色指示簇32环绕第二含氟簇34设置时,刷毛30整体在刷板12上的排布呈现出一个双轮结构,此时,第一含氟簇33与围绕其周向设置的增摩簇31相当于双轮结构中的其中一个轮结构,第二含氟簇34与围绕其周向设置的颜色指示簇32相当于双轮结构中的另一个轮结构。
如图21-22所示,考虑到第一刷毛组30a相较于第二刷毛组30b更靠近刷杆11设置,故第一刷毛组30a包括增摩簇31和第一含氟簇33,第二刷毛组30b包括颜色指示簇32和第二含氟簇34。为使氟离子分布地更加均匀,故设计,第一刷毛组30a还包括第三含氟簇35,和/或,第二刷毛组30b还包括第四含氟簇36,关于第三含氟簇35与增摩簇31以及第一含氟簇33之间的相对排布方式,第四含氟簇36与颜色指示簇32以及第二含氟簇34之间的相对排布方式可以但不仅限于包括以下几种实施例的一种或者多种。
在第一种实施例中,至少部分第三含氟簇35设于增摩簇31远离颜色指示簇32的一侧。该设计中,通过设计第三含氟簇35,使氟离子分布地更加均匀,能够进一步有效减少如龋齿等口腔疾病的产生。
在第二种实施例中,至少部分第四含氟簇36设于颜色指示簇32和增摩簇31之间。该设计中,通过设计第四含氟簇36,使氟离子分布地更加均匀,能够进一步有效减少如龋齿等口腔疾病的产生。
需要注意的是,颜色指示簇32的颜色的变化可以指示牙刷的磨损情况,由于第二刷毛组30b相较于第一刷毛组30a远离刷杆11设置,使得第二刷毛组30b与用户牙齿接触的频率相较于第一刷毛组30a与用户牙齿接触的频率更高,故第二刷毛组30b的磨损相较于第一刷毛组30a的磨损会更严重。例如,存在第二刷毛组30b磨损严重,第二刷毛组30b的清洁能力下降,而第一刷毛组30a的磨损较轻,第一刷毛组30a仍然具有较好的清洁能力的情况,通过将颜色指示簇32设置于第二刷毛组30b,可以进一步提升颜色指示簇32的指示准确性。
当第一刷毛组30a包括增摩簇31和第一含氟簇33,第二刷毛组30b包括颜色指示簇32和第二含氟簇34时,在一些实施例中,增摩簇31的颜色、颜色指示簇32的颜色以及第一含氟簇33的颜色互不相同,第一含氟簇33的颜色和第二含氟簇34的颜色相同。例如,颜色指示簇32的颜色可以为蓝色,增 摩簇31的颜色可以为紫色,第一含氟簇33和第二含氟簇34的颜色可以均为白色。该设计中,通过将第一含氟簇33和第二含氟簇34的颜色设计成与增摩簇31以及颜色指示簇32均不相同,待颜色指示簇32的颜色变化后能够与增摩簇31、第一含氟簇33以及第二含氟簇34在给用户的视觉冲击上能够形成更加鲜明的对比。当然,在其他实施例中,颜色指示簇32的颜色也可以与其他簇(如第一含氟簇33、第二含氟簇34及增摩簇31)的颜色相同,由于颜色指示簇32的自由端相对于颜色指示簇32的根部与用户牙齿接触地更加频繁,导致颜色指示簇32的自由端掉色更加严重,此时,颜色指示簇32自其根部至自由端的颜色逐渐变浅,以给用户起到指示作用。
如图21所示,考虑到刷板12用于承载刷毛30,用户在刷牙过程中,刷板12通过刷毛30与用户牙齿之间产生相互作用力,为进一步提升刷头10的整体清洁能力,故设计,在一些实施例中,至少部分刷板12具有弹性。例如,刷板12与刷杆11的连接部位具有弹性。该设计中,用户在刷牙过程中,刷毛30与用户牙齿接触受到作用力的作用,刷毛30将作用力传递给刷板12使刷板12产生弹性形变,且越远离刷杆11的刷板12的形变幅度越大,使靠近刷杆11设置的第一刷毛组30a可以朝靠近用户牙齿的方向贴近,增大了第一刷毛组30a与用户牙齿之间的接触面积,从而进一步提升该刷头10的整体清洁能力。
进一步地,可以理解的是,用户在清洁位于口腔靠内侧的槽牙时,需要将刷板12伸入到口腔内侧,为减少用户刷牙过程中的异物感,以提升用户刷牙过程中的舒适性,故设计,在一些实施例中,刷板12的植毛面125具有关于长度方向M对称设置的两条弧状的边缘线126,自靠近刷杆11的一侧至远离刷杆11的一侧,两条边缘线126与长度方向M之间的距离先增大后减小。该设计中,刷板12被构造成从中部宽度较大,两端宽度较小的形状,可以有效减少用户刷牙过程中的异物感;此外,由于刷板12可产生弹性形变,将刷板12的两端的宽度设计得较小,可以减小刷板12的抗变形能力,使刷板12更容易产生形变,从而使第一刷毛组30a更容易接触到用户牙齿。
在其他实施例中,为了提升刷头10的清洁能力,本申请的刷头10结构还可以是如下方案。
如图27至图32所示,刷头10包括刷杆11、刷板12和刷毛40,刷板12能够承载刷毛40,刷毛40能够清洁牙齿,刷牙时,该刷板12和刷毛40构成刷头10的头部伸入口腔内部。刷毛40固定于刷板12,其包括沿长度方向X依次分布的第一刷丝组41、第二刷丝组42及第三刷丝组43,对应的,刷板12包括沿长度方向X依次分布的第一区域127、第二区域128及第三区域129,第一刷丝组41设于第一区域127,第二刷丝组42设于第二区域128,第三刷丝组43设于第三区域129。
第一刷丝组41由多个刷丝(未图示)组成,各刷丝的根部固定于第一区域127,各刷丝均沿厚度方向Z向上伸出刷板12,各刷丝向上伸出刷板12的长度即为刷丝的高度,第一刷丝组41的高度由其刷丝的高度限定出。第一刷丝组41的各刷丝的尖端限定出第一刷面411。
第二刷丝组42由多个刷丝组成,各刷丝的根部固定于第二区域128,各刷丝均沿厚度方向Z向上伸出刷板12,各刷丝向上伸出刷板12的长度即为刷丝的高度,第二刷丝组42的高度由其刷丝的高度限定出。第二刷丝组42的各刷丝的尖端限定出第二刷面421。
第三刷丝组43由多个刷丝组成,各刷丝的根部固定于第三区域129,各刷丝均沿厚度方向Z向上伸出刷板12,各刷丝向上伸出刷板12的长度即为刷丝的高度,第三刷丝组43的高度有其刷丝的高度限定出。第三刷丝组43的各刷丝的尖端限定出第三刷面431。
在长度方向X上,第一刷丝组41的高度逐渐变高,第二刷丝组42的高度逐渐变低,第三刷丝组43的高度逐渐变高,第二刷面421和第三刷面431形成凹曲面44。第二刷面421与第一刷面411相衔接的部分与第一刷面411形成向远离刷板12拱起的凸曲面45,该凸曲面45的最高高度处是尖锐部451,该尖锐部451能够伸入齿缝,该尖锐部451即形成于第一刷丝组41和第二刷丝组42两者衔接的衔接处。
刷毛40的各刷丝组具有在长度方向X上的长度,在厚度方向Z上的高度及在宽度方向Y上的宽度,长度方向X、厚度方向Z和宽度方向Y两两相互垂直。刷毛40的各刷丝组的高度可以是刷丝组在厚度方向Z上向上伸出刷板12的长度,相当于是刷丝的尖端和刷板12在厚度方向Z上的间距,也相当于刷面与刷板12在厚度方向上的间距。
由于第一刷丝组41的高度沿长度方向X逐渐变高,第二刷丝组42的高度沿长度方向X逐渐变低,第三刷丝组43的高度沿长度方向X逐渐变高,使第一刷面411和第二刷面421两者衔接处形成一个尖锐部451,该尖锐部451适于伸入相邻牙齿间的齿缝;由于第二刷面421和第三刷面431形成一个凹曲面44,第二刷面421和第一刷面411相衔接的部分与第一刷面411形成含有该尖锐部451的凸曲面45,使尖锐部451既能够伸入齿缝又相对平缓而不容易戳伤牙齿。同时,在刷牙时,由于刷毛40的可变形性,伸入齿缝的第一刷丝组41的具有较高高度的刷丝容易变形,如果缺少对该部分刷丝支撑,就容易产生永久性变形,而第一刷丝组41的一部分具有较低高度的刷丝就起到了支撑的作用,避免较高高度的刷丝产生永久性变形;另一方面,在刷牙时,第一刷丝组41可以与牙缝更内侧的齿面接触,第二刷丝组42以及第三刷丝组43与牙缝外侧的齿面接触,无论用户以何种姿势调整刷牙角度,刷毛40均能够在伸入齿缝清洁的同时,有效地与牙齿齿面接触。
刷杆11沿长度方向X延伸,其具有近端113和远端115,该近端113与刷板12固定,该远端115能够便于用户握持或与牙刷的其他部分装配设置,该近端113和远端115分别位于该刷杆11的沿长度方向X的相对两端。刷杆11的近端113与刷毛40的第三刷丝组43相邻。刷杆11和刷板12固定连接,该连接方式可以但不限于卡接、粘接、热融焊接、螺纹连接或一体成型等。
在一些实施例中,第一刷丝组41包括多个第一刷丝簇412,每个第一刷丝簇412由多个刷丝成束设置形成,各第一刷丝簇412呈点状分布于刷板12的第一区域127。第二刷丝组42包括多个第二刷丝簇422,每个第二刷丝簇422由多个刷丝成束设置形成,各第二刷丝簇422呈点状分布于刷板12的第二区域128。第三刷丝组43包括多个第三刷丝簇432,每个第三刷丝簇432由多个刷丝成束设置形成,各第三刷丝簇432呈点状分布于刷板12的第三区域129。各刷丝簇的与刷板12平行的横截面的形状可以但不限于圆形、椭圆形或多边形等,其横截面可以根据设计和制造要求设置。对于各刷丝组,其各刷丝簇的横截面可以相同,也可以不相同。对于各刷丝组,其各刷丝簇可以呈曲线分布,可以呈直线分布,也可以呈阵列分布,或者是其他满足设计和制造要求的分布方式。
在一种具体的结构中,各第一刷丝簇412呈弧形分布。第二刷丝簇422包括位于内侧的多个第二内刷丝簇422a及位于外侧的多个第二外刷丝簇422b,该内侧是远离刷杆11的一侧,该外侧是靠近刷杆11的一侧,各第二内刷丝簇422a呈弧形分布,各第二外刷丝簇422b也呈弧形分布。各第三刷丝簇432呈点状分布于刷板12。
刷板12的第一区域127设有与第一刷丝簇412一一对应的第一凹槽1271,各刷丝的根部植入固定于该第一凹槽1271内。刷板12的第二区域128设有与第二刷丝簇422一一对应的第二凹槽1281,各刷丝的根部植入固定于该第二凹槽1281内。刷板12的第三区域129设有与第三刷丝簇432一一对应的第三凹槽1291,各刷丝的根部植入固定于该第三凹槽1291内。当然,在一些替换的结构,刷板12的一个凹槽也可以用于植入安装多个刷丝簇。
刷板12可以具有面向刷毛40的植毛面125,第一凹槽1271、第二凹槽1281及第三凹槽1291设于该植毛面125。刷丝组的高度是其刷丝在厚度方向Z上向上伸出该植毛面125的长度。
在一些实施例中,第三刷丝组43的最高高度小于第一刷丝组41的最高高度,使第三刷丝组43的刷丝相对第一刷丝组41的刷丝短,不会由于第三刷丝组43与牙齿的接触而阻碍上述的尖锐部451伸入齿缝中。此外,尤其对于第三刷丝组43,其最高高度的刷丝短于第一刷丝组41最高高度的刷丝,就不会由于在某些姿势下第三刷丝组43较高高度的刷丝接触牙齿而阻碍上述的尖锐部451伸入齿缝,进而能够避免造成刷毛40与牙齿的接触面积小而影响刷牙效果。
在一些实施例中,第一刷丝组41在长度方向上的长度为A,刷毛40整体在长度方向上的长度为B,且1/10≤A:B≤1/3。通过上述设置,使第一刷丝组41具有较多的支撑,防止第一刷丝组41的较高高度的刷丝发生永久性变形。用户在开始刷牙时,第一刷丝组41的刷丝与用户的齿面接触,容易不小心碰到牙龈,第一刷丝组41的第一刷面411具有一定的面积,该第一刷面411与牙龈接触面积大,分散压力,可以减少戳伤牙龈的疼痛感。对于A:B≤1/3,一方面,是要提供更长的距离布置第二刷丝组42和第三刷丝组43,是因为第二刷丝组42和第三刷丝组43为刷头10的主要部分,需要的刷丝较多,另一方 面,较长的长度尺寸可以供第二刷丝组42和第三刷丝组43的高度变化较为平缓,使第二刷丝组42和第三刷丝组43的刷丝能顺利地与齿面接触。对于A:B≥1/10,是避免刷头的头部过大而对口腔产生硌感。
在一些实施例中,在长度方向X上,第一刷丝组41的高度变化速率小于第二刷丝组42的高度变化速率。第一刷丝组41接触的是靠内的牙齿,第二刷丝组42接触的是靠外的牙齿,尖锐部451伸入齿缝,而事实上靠近外侧的牙齿的靠近齿缝部分通常曲率变化较大,因此,可以适应牙齿和齿缝的形状,与牙齿更贴合,刷牙更全面。
参照图30,在一些实施例中,第一刷丝组41在长度方向X上的长度小于第二刷丝组42在长度方向X上的长度,第二刷丝组42包括第一分布段42a和第二分布段42b,在长度方向X上,第一分布段42a与第一刷丝组41衔接,第二分布段42b与第三刷丝组43衔接;在长度方向X上,第一分布段42a的高度变化速率大于第一刷丝组41的高度变化速率,且,第一刷丝组41的高度变化速率大于第二分布段42b的高度变化速率。通过上述设置,使第一刷丝组41和第二刷丝组42两者衔接处形成的尖锐部451的尖角较小,且使得第一刷丝组41的高度变化较为平缓,不容易使用户感到尖锐和刺痛,且能够确保尖锐部451可以伸入到齿缝清洁。第二刷丝组23相对平缓的目的是为了更好的与牙齿接触,其在长度方向上X的长度不能太短。
在一些实施例中,第一刷丝组41和第一分布段42a在刷板12上的正投影的面积和小于第二分布段42b和第三刷丝组43在刷板12上的正投影的面积和。由于第二刷丝组42和第三刷丝组43为主要的刷牙部分,通过设置上述面积关系,使该主要的刷牙部分具有较大的面积。通常的,在刷板12上的正投影相当于在刷板12的植毛面125上的正投影。
在一些实施例中,第一刷丝组41在长度方向X上的长度为2mm-6mm。当长度小于2mm时,刷牙时对第一刷丝组41的支撑效果较差,容易使较高高度的刷丝产生永久性变形;当长度大于6mm时,第一刷丝组41的高度变化速率太小,不容易形成尖锐部451,即,第一刷丝组41与齿面的接触会影响高度较高的刷毛40伸入齿缝。
在一些实施例中,第一刷丝组41的最高高度和最低高度的高度差为1mm-3.5mm。最高高度的位置可以是与第二刷丝组42衔接的位置,最低高度的位置可以是最远离第二刷丝组42的位置。通过上述设置,使第一刷丝组41的高度变化相对平缓,与齿面接触面积较大,清洁效率高,且即使接触到牙龈时不容易产生尖锐刺痛感。当高度差小于1mm,尖锐部451过于平缓而不便于清洁齿缝;当高度差大于3.5mm,使第一刷牙组21的高度变化相对剧烈,使尖锐部451过于尖锐而容易戳伤牙齿。
在一些实施例中,第三刷丝组43的最高高度和最低高度的高度差为0.5mm-2.5mm。通过上述设置,使第三刷丝组43的刷毛高度变化平缓,且与牙齿的形状适应,与牙齿的接触面积更大,提升刷牙效果。当高度差小于0.5mm或大于2.5mm时,使第三刷丝组43的高度变化过于平缓或过于激烈,都会影响其与牙齿的接触面积。
在一些实施例中,第一刷丝组41的最高高度和第三刷丝组43的最高高度的高度差为0.5mm-1.8mm,且第一刷丝组41的最高高度大于第三刷丝组43的最高高度。通过上述设置,使第二刷丝组42和第三刷丝组43的刷丝高度变化平缓,从而能够使第二刷面421和第三刷面431形成的凹曲面44更好的与牙齿形状适应,进而提高与牙齿齿面的接触面积。当高度差小于0.5mm或大于1.8mm时,使第二刷丝组42和第三刷丝组43的高度变化过于平缓或过于激烈,都会影响其与牙齿的接触面积。
在一些实施例中,第一刷丝组41的最高高度和第三刷丝组43的最低高
度的高度差为1.5mm-2.5mm。通过上述设置,使第二刷丝组42和第三刷丝组43的变化较为平缓,适应牙齿形状,避免刷牙时该部分刷毛无法与牙齿接触,提升刷牙效果。当高度差小于1.5mm或大于2.5mm时,使第二刷丝组42和第三刷丝组43的高度变化过于平缓或过于激烈,都会影响其与牙齿的接触面积。
在一些实施例中,第一刷丝组41在宽度方向Y上的最大宽度小于第二刷丝组42在宽度方向Y上的最大宽度,宽度方向Y与长度方向X和厚度方向Z均垂直。通过上述设置,可以将刷头10的头部设置的较小,刷头10的头部需要伸入到牙齿和脸部肌肉之间,头部较大会使用户产生硌感。
在一些实施例中,第三刷丝组43的一部分刷丝相对刷板12倾斜设置。通过上述设置,使刷头能够适应用户的各个握持姿势,能够增大第三刷丝组43的刷丝与用户牙齿之间的接触面积,以提升刷头的整体清洁能力。
在一实施例中,所有第一刷丝簇412和一部分所述第二刷丝簇422围成一圈形成第一刷毛环,一部分第三刷丝簇222围成一圈形成第二刷毛环。用户在刷牙时,可能使用不同的握持姿势,刷毛40的分布会影响刷毛40与牙齿的接触,将多个刷丝簇设置为环形,无论用户使用何种握持姿势,刷毛40都可以有效的刷洗清洁牙齿。对于第一刷毛环,其可以由所有第一刷丝簇412和第二内刷丝簇422a组成。第二外刷丝簇422b位于第一刷毛环和第二刷毛环之间。
围出第一刷毛环的各第一刷丝簇412在刷板12上的正投影的面积和为S1,围出第一刷毛环的各第二刷丝簇422在刷板12上的正投影的面积和为S2,且S1大于S2,如图4所示,即,各第二内刷丝簇422a在刷板12上的正投影的面积和小于S1。
刷毛40还包括第一中间刷丝簇26和第二中间刷丝簇27,第一刷毛环环绕第一中间刷丝簇26,第二刷毛环环绕第二中间刷丝簇27。通过上述设置,能充分利用刷板12的空间,使刷板12上的刷丝簇分布的较为均匀,提升刷牙效果。
第一刷丝簇412的刷丝的数量可以小于第三刷丝簇432的刷丝的数量,且第一刷丝组41的第一刷丝簇412的密度大于第三刷丝组43的第三刷丝簇432的密度。第一刷丝组41的刷丝簇的密度较大,是为了提供更好的支撑,避免适于伸入齿缝的刷丝发生永久性形变。第三刷丝组43的刷丝簇的密度较小,可以减小整体的结构强度,使刷毛能够相对容易得变形,否则一方面容易让用户牙龈产生尖锐刺痛感,另一方面,刷毛40整体容易变形,有利于使用巴氏刷牙法刷牙。
对于邻近刷板12周缘的刷丝簇,位于其外侧的刷丝的高度可以低于位于内侧的刷丝的高度,从而能够避免戳伤牙龈。
请参照图33至图35,在一实施例中,本申请的刷头10结构包括刷杆11、刷板12、刷毛50,刷板12包括背板(未标示)和植毛板60。本实施例可以在刷板12的背板上开设凹槽,将植毛板60通过粘接安装于凹槽内,或者,将与植毛板60与背板一体成型的固定安装在凹槽内。
如图34和图35所示,植毛板60具有相互垂直的长度方向和宽度方向,植毛板60的植毛面600上开设有多个植毛孔,用于固定刷毛50。在植毛孔中固定了刷毛50,从而固定有刷毛50的植毛板60成为刷头10的一部分。在刷牙的过程中,固定在植毛孔中的刷毛50与牙齿反复摩擦,对牙齿进行清洁。因此,植毛板60上刷毛50的排布方式的不同,就会导致不同的刷牙效果。有的刷毛虽然排布整齐,但是固定在各个植毛孔中刷毛50所形成的刷毛簇的行或者列之间存在间距,导致牙齿上会有部分区域无法与刷毛接触,从而影响刷牙效果。
本实施例中,该植毛板60的植毛面600包括沿植毛板60的长度方向排布的第一植毛孔区610和第二植毛孔区620。第一植毛孔区610包括至少一个第一中心植毛孔611和围绕第一中心植毛孔611间隔设置的第一辅助植毛孔612。可以根据需要设置第一中心植毛孔611的形状(例如圆形)、数量以及排布方式,本实用新型实施例对此不做具体限定;还可以根据需要设置第一辅助植毛孔612的形状、数量以及围绕第一中心植毛孔611的排布方式。第二植毛孔区620包括多个间隔设置的第二辅助植毛孔622。
进一步地,第一植毛孔区610靠近植毛面600的自由端,以该自由端相对应的是植毛板60与牙刷柄相连接的一端。植毛面600的宽度由其自由端开始,沿着植毛面600长度逐渐增加,因此植毛面600的宽度也可以相应增加。基于此,第二植毛孔区620的宽度通常大于第一植毛孔区610的宽度,因此具有更大的区域用于排布植毛孔。这使得可以在第二植毛孔区620内设置更大尺寸或者更多数量的植毛孔,也使得位于第二植毛孔区620内的植毛孔可以有更多的排布方式。
植毛孔的轮廓线沿植毛面600的长度方向落在植毛面600的宽度方向上的投影为第一投影,且至少部分第二辅助植毛孔622的至少部分投影位于相邻两个第一辅助植毛孔612的投影间隔中,和/或,至少部分第一辅助植毛孔612的至少部分投影位于相邻两个第二辅助植毛孔622的投影间隔中,使得植毛孔的第一投影相互连接形成一条连续的线段。
具体地,当相邻的两个第一辅助植毛孔612之间存在间隙,会导致它们在沿植毛面600的长度方向落在植毛面600宽度方向的第一投影之间存在间隔。刷牙时,这种间隔的存在就会使牙刷在沿植毛板60的长度方向反复移动时,位于间隔处的牙齿因不能与刷毛相接触,而无法被刷到。但是,通过对第二辅助植毛孔622进行相应地布置,使得至少一部分第二辅助植毛孔622沿植毛面600的长度方向落在植毛板60的宽度方向的第一投影填补了上面提到的相邻的两个第一辅助植毛孔612落在植毛面600宽度方向的第一投影之间的间隔,从而使得植毛面600上所有植毛孔中的刷毛在沿植毛面600的长度方向落在植毛板60宽度方向的第一投影呈连续状,没有间隔。这样的话,当牙刷沿植毛面600的长度方向反复移动时刷牙时,因为刷毛落在这个方向上的投影是连续的;所以牙齿不会有接触不到刷毛的地方。同理,第一辅助植毛孔121通过其排布方式也可以填补第二辅助植毛孔622沿植毛面600的长度方向落在植毛面600宽度方向的第一投影上的间隔。
在一些实施例中,第二植毛孔区620包括至少一个第二中心植毛孔621和围绕第二中心植毛孔621间隔设置的多个第二辅助植毛孔622;其中,至少部分第一辅助植毛孔612的至少部分位于相邻两个第二辅助植毛孔622的投影间隔中。可以根据需要设置第二中心植毛孔621的形状、数量以及排布方式,本实用新型实施例对此不做具体限定;还可以根据需要设置第二辅助植毛孔622的形状、数量以及围绕第二中心植毛孔621的排布方式。
进一步地,根据需要可以将第一植毛孔区610的植毛孔密度设置成与第二植毛孔区620的植毛孔密度不同,这里的植毛孔密度是指植毛面600上一定面积内植毛孔所占的比例,受植毛孔的形状、尺寸、数量和排布方式影响。从而使得通过设置第一植毛孔区610和第二植毛孔区620中植毛孔的排布方式,来实现第一植毛孔区610中的植毛孔与第二植毛孔区620中的植毛孔在沿植毛面600的长度方向落在植毛面600宽度方向的第一投影是连续的;例如,使得第二植毛孔区620中的植毛孔布置在第一植毛孔区610中相邻植毛孔之间的第一投影的间隔中。
在一些实施例中,第一植毛孔区的植毛孔密度大于第二植毛孔区的植毛孔密度,或第一植毛孔区中相邻的植毛孔的间距小于第二植毛孔区中相邻的植毛孔的间距,原因在于用户在将刷头伸入到口腔内刷洗最内侧的牙齿时,由于口腔形状的限制,刷头的行进距离有限,在刷头左右扫动的过程中,即使刷头伸入到最内侧,位于最内侧的牙齿可能也无法与所有的刷毛接触,这也就导致最内侧的牙齿的部分区域存在漏刷的情况,因此,将第一植毛孔区的植毛孔的密度设置的较大或者间距较小,可以有效提升内侧牙齿的清洁效率。
植毛孔的轮廓线沿植毛面600的宽度方向落在植毛面600长度方向上的投影为第二投影;在植毛面600长度方向上的最外侧的两个相对设置的植毛孔的连线沿宽度方向落在长度方向上的投影为第三投影;且第二投影的总长度不小于第三投影的长度的85%。
具体地,第三投影为位于植毛面600上的,在沿植毛面600的长度方向上相距最远的两个植毛孔在落在植毛面600长度方向的第二投影之间的距离。当相邻的两个植毛孔之间存在间隙时,会导致它们在沿植毛面600的宽度方向落在植毛面600长度方向的第一投影之间存在间隔。所有植毛孔落在植毛面600长度方向的第一投影的长度总和与第三投影的长度至少为85%,,从而确保当牙刷沿植毛板60的宽度方向反复移动进行刷牙时至多有15%的牙齿表面没有接触到刷毛,从而确保刷牙对牙齿的清洁效果。当第二投影的总长度等于第三投影的长度时,植毛面600上植毛孔所采用的排布方式使得所有植毛孔的轮廓线沿植毛面600的宽度方向落在植毛面600长度方向上的第二投影呈连续状,没有间隔。这样的话,当牙刷沿植毛面600的宽度方向反复移动进行刷牙时,因为刷毛落在这个方向上的投影是连续的;所以牙齿不会有接触不到刷毛的地方。
在一些实施例中,至少部分第一辅助植毛孔612位于围绕第一中心植毛孔611的第一圆周630上,并且第一圆周630通过位于其上的所有第一辅助植毛孔612的中心。位于第一圆周630上的第一辅助植毛孔612的形状和尺寸通常都是相同的,这样便于将第一辅助植毛孔612排布成圆形,并且能够减小相邻的第一辅助植毛孔612之间的距离。此外,至少部分第二辅助植毛孔622位于围绕第二中心植毛孔621的第二圆周640上,并且第二圆周640通过位于其上的所有第二辅助植毛孔622的中心。位于第二圆周 640上的第二辅助植毛孔622的形状和尺寸通常都是相同的,这样便于将第二辅助植毛孔622排布成圆形;并且能够减小相邻的第二辅助植毛孔622之间的距离。位于第一圆周630上的第一辅助植毛孔612和位于第二圆周640上的第二辅助植毛孔622可以为椭圆形、六边形或长方形。根据需要,位于第一圆周630上的第一辅助植毛孔612的形状或/和尺寸也可以是不同的;并且位于第二圆周640上的第二辅助植毛孔622的形状或/和尺寸也可以是不同的。
在一些实施例中,位于第一圆周630上的第一辅助植毛孔612的开孔面积小于位于第二圆周640上的第二辅助植毛孔622的开孔面积;具体地,位于第一圆周630上的第一辅助植毛孔612的开孔面积为位于第二圆周640上的第二辅助植毛孔622的开孔面积的50%--85%。
在一些具体的实施例中,第一圆周630所围成的面积为第二圆周640所围成的面积的45%-75%。
通过合理地设置第一辅助植毛孔612和第二辅助植毛孔622的形状、尺寸(或,面积比)以及排布方式(或,第一圆周与第二圆周的面积比)来实现刷毛的第一投影的连续分布,从而获得所期望刷牙都牙齿的清洁效果。
进一步地,如图33和图34所示,在第一圆周630和第二圆周640之间设置有多个第一加强植毛孔650,第一加强植毛孔650位于第一植毛孔区610内,且第一加强植毛孔650设置于第一辅助植毛孔612与第二辅助植毛孔622沿宽度方向的间隔中。具体地,多个第一加强植毛孔650的形状与位于第一圆周630上的第一辅助植毛孔612以及位于第二圆周640上的第二辅助植毛孔622的形状不同,并且从第一圆周630与第二圆周640间距最小处向植毛面600的两个长侧边方向排布。从而通过设置第一加强植毛孔650,进一步填补第一圆周630的第一辅助植毛孔612和第二圆周640上的第二辅助植毛孔622的第一投影之间的距离。例如,多个第一加强植毛孔650可以排布成圆弧形。由于位于第一圆周630与第二圆周640之间的区域比较宽;因此根据需要,可以考虑在该区域设置较多的植毛孔,并且将该区域的第一加强植毛孔650的形状设置为第一圆周630的第一辅助植毛孔612和第二圆周640上的第二辅助植毛孔622的形状不同,从而使该区域的植毛孔密度相对高一些。
进一步地,在第二圆周640远离第一圆周630的一侧设置有多个第二加强植毛孔660,第二加强植毛孔660位于第二植毛孔区620内,且第二加强植毛孔660设置于第一辅助植毛孔612与第二辅助植毛孔622沿宽度方向的间隔中。从而通过设置第二加强植毛孔660,进一步填补第一辅助植毛孔612和第二辅助植毛孔622的第一投影之间的距离。
进一步地,植毛面600上相邻的植毛孔之间的最小间距不大于3mm且不小于0.5mm。相邻的植毛孔间距过大(大于3mm),在向植毛孔内植毛时,刷毛稀疏,影响刷牙效果;相邻的植毛孔间距过小(小于0.5mm),植毛面600在植毛时容易开裂,导致植毛板60报废。
本实施例的附图中相同或相似的标号对应相同或相似的部件;在本申请的描述中,需要理解的是,若有术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此附图中描述位置关系的用语仅用于示例性说明,不能理解为对本专利的限制,对于本领域的普通技术人员而言,可以根据具体情况理解上述术语的具体含义。
以上仅为本申请的较佳实施例而已,并不用以限制本申请,凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本申请的保护范围之内。

Claims (75)

  1. 一种刷头,其中,包括:
    刷杆,所述刷杆具有长度方向;
    刷板,所述刷板包括植毛板以及背板,所述背板以及所述植毛板中的至少一个与所述刷杆连接;所述植毛板包括相背设置的植毛面和背面,所述植毛板还包括位于所述植毛面与所述背面之间的周侧面,刷毛自所述植毛面上延伸而出;所述背板设置于所述植毛板的背离所述刷毛的一侧,且所述背板的部分区域与所述背面间隔设置以构设出填充槽,且沿所述长度方向,所述背板包括相对靠近所述刷杆的第一连接端以及相对远离所述刷杆的第二连接端,所述背板通过所述第一连接端和/或所述第二连接端与所述植毛板连接;以及
    软胶件,所述软胶件填充于所述填充槽,且所述软胶件包覆于所述背板以及所述植毛板的至少部分所述周侧面。
  2. 根据权利要求1所述的刷头,其中,所述刷板具有宽度方向以及厚度方向,所述宽度方向、所述厚度方向与所述长度方向两两垂直,所述填充槽沿所述宽度方向贯穿所述刷板,以在所述宽度方向形成相对设置的两个填充槽口,所述填充槽口用于在注塑时供软胶流入所述填充槽并成型出第一填充部,所述软胶件包括所述第一填充部。
  3. 根据权利要求2所述的刷头,其中,沿所述刷板的厚度方向,所述软胶件在所述填充槽口处的厚度大于其他位置的厚度,以在所述刷头背部形成外软胶轮廓。
  4. 根据权利要求1-3中任一项所述的刷头,其中,所述刷杆包括与所述刷板连接的连接段,所述软胶件还呈环状包覆在所述连接段上。
  5. 根据权利要求1-4中任一项所述的刷头,其中,沿所述长度方向,所述填充槽具有第一长度,所述植毛板具有第二长度,所述第一长度与所述第二长度的比值大于或者等于1/2。
  6. 根据权利要求1-5中任一项所述的刷头,其中,沿所述刷板的厚度方向,所述填充槽的最大厚度大于或者等于1mm且小于或者等于5mm。
  7. 根据权利要求1-6中任一项所述的刷头,其中,沿所述刷板的宽度方向,所述背板具有第一宽度,所述植毛板具有第二宽度,所述第一宽度小于所述第二宽度。
  8. 根据权利要求1-7中任一项所述的刷头,其中,沿所述刷板的厚度方向,所述背板具有第一厚度,所述植毛板具有第二厚度,所述第一厚度小于所述第二厚度。
  9. 根据权利要求1-8中任一项所述的刷头,其中,沿所述刷板的厚度方向,所述刷板的厚度大于或者等于3.5mm,且小于或者等于小于7mm。
  10. 根据权利要求1-9中任一项所述的刷头,其中,在所述刷板的厚度方向上,所述植毛面相对于所述软胶件凸出于所述软胶件,以使所述周侧面部分外露于所述软胶件。
  11. 根据权利要求1-10中任一项所述的刷头,其中,
    所述背板同时通过所述第一连接端以及所述第二连接端与所述植毛板连接,所述填充槽形成于所述第一连接端与所述第二连接端之间;或者
    所述背板通过所述第一连接端与所述植毛板连接,所述第二连接端悬空设置,所述第二连接端与所述背面之间形成填充槽口;或者,
    所述背板通过所述第二连接端与所述植毛板连接,所述第一连接端悬空设置,所述第一连接端与所述背面之间形成填充槽口。
  12. 根据权利要求11所述的刷头,其中,所述刷板还包括:
    一个或者多个连接部,设置于所述填充槽内,连接所述背面以及所述背板,且多个所述连接部沿所述长度方向间隔排布。
  13. 根据权利要求1-12中任一项所述的刷头,其中,
    所述植毛板与所述背板一体成型;或者
    所述植毛板与所述刷杆一体成型;或者
    所述背板与所述刷杆一体成型;或者
    所述植毛板、所述背板与所述刷杆三者一体成型。
  14. 根据权利要求1-13中任一项所述的刷头,其中,所述植毛板与所述背板分体设置,且所述植毛板与所述背板中的一个与所述刷杆一体成型,所述刷头还包括:
    连接件,与所述植毛板一体成型,且所述第一连接端及/或所述第二连接端通过所述连接件与所述植毛板连接,所述连接件以及所述植毛板的硬度小于或者等于所述软胶件的硬度。
  15. 根据权利要求1-14中任一项所述的刷头,其中,所述植毛板与所述背板一体成型,所述植毛面上开设有多个植毛孔,所述植毛孔为盲孔,所述刷头还包括铜片,所述刷毛的根部通过所述铜片安装于所述植毛孔内。
  16. 根据权利要求1-15中任一项所述的刷头,其中,所述植毛板与所述背板分体设置,所述植毛面上开设有多个植毛孔,所述植毛孔为通孔,所述刷毛的根部穿设于所述植毛孔内,且所述刷毛的穿出所述背面的部分与所述植毛板熔接。
  17. 根据权利要求1-16任一项所述的刷头,其中,所述周侧面具有一个或者多个凹槽,多个所述凹槽间隔设置,所述凹槽的两端分别贯通至所述植毛面与所述背面,所述凹槽与所述填充槽连通,所述软胶件还包括填充于所述凹槽的第二填充部。
  18. 根据权利要求17所述的刷头,其中,所述凹槽具有与所述刷板的厚度方向垂直的凹槽截面,自所述背面到植毛面的方向上,所述凹槽截面逐渐增大。
  19. 根据权利要求17所述的刷头,其中,所述植毛板的所述周侧面包括两个位于所述刷杆的中轴线相背两侧的子侧面,每一所述子侧面上均设置有多个所述凹槽,所述植毛板包括远离所述刷板设置的自由端,靠近所述自由端的凹槽的开槽尺寸小于位于所述子侧面中部的所述凹槽的开槽尺寸。
  20. 根据权利要求1-19中任一项所述的刷头,其中,
    所述刷板具有与所述长度方向垂直的厚度方向,所述背板具有沿所述厚度方向与所述植毛面相背设置的以及外背面,所述植毛板的周侧面以及所述背板位于所述植毛面与所述外背面之间的外壁面一同构成所述刷板的外周面,所述外周面上设置有结合部,所述结合部包括第一台阶结构和/或凸棱结构;沿所述厚度方向且自所述结合部指向所述植毛面,所述刷板的与所述厚度方向垂直的第一横截面不变或者逐渐减小;沿所述厚度方向且自所述结合部指向所述背面,所述刷板的与所述厚度方向垂直的第二横截面不变或者逐渐减小;
    所述软胶件将所述结合部包覆。
  21. 根据权利要求20所述的刷头,其中,所述刷板被所述结合部沿所述厚度方向划分成第一段以及第二段,所述第一段具有所述第一横截面,所述第二段具有所述第二横截面,所述第一横截面小于所述第二横截面,以在所述外周面上形成所述第一台阶结构,所述第一台阶结构具有第一台阶面,所述第一台阶面朝向所述植毛面设置。
  22. 根据权利要求20所述的刷头,其中,所述刷板被所述结合部沿所述厚度方向划分成第一段以及第二段,所述第一段具有所述植毛面,所述第二段具有所述背面,所述外周面还具有凹槽,所述软胶件包括嵌入所述凹槽的凸部;
    其中,所述凹槽设置于所述第一段并沿所述厚度方向贯穿至所述植毛面,或者所述凹槽自所述植毛面贯穿至所述背面。
  23. 根据权利要求22所述的刷头,其中,所述凹槽设置于所述第一段,沿所述厚度方向且自所述结合部指向所述植毛面,所述凹槽以及所述凸部的横截面面积逐渐增大。
  24. 根据权利要求20所述的刷头,其中,所述刷杆与所述刷板一体注塑成型,所述刷杆具有与所述厚度方向垂直的中分面,所述结合部具有所述刷头中与所述厚度方向垂直的最大横截面,所述最大横截面与所述中分面共面。
  25. 根据权利要求20所述的刷头,其中,所述刷板被所述结合部沿所述厚度方向划分成第一段以 及第二段,所述第一段具有所述植毛面,所述第二段具有所述背面,所述第一段沿所述厚度方向具有第一厚度,所述第二段沿所述厚度方向具有第二厚度,所述第一厚度小于所述第二厚度。
  26. 根据权利要求20所述的刷头,其中,所述结合部环绕所述外周面设置。
  27. 根据权利要求20所述的刷头,其中,所述软胶件还包括:
    套接部,所述套接部呈环状套接于所述刷杆。
  28. 根据权利要求27所述的刷头,其中,所述套接部套接于所述刷杆的靠近所述刷板的一段,且所述套接部沿所述长度方向的长度小于或者等于20mm,以使所述刷杆部分外露于所述软胶件。
  29. 根据权利要求27所述的刷头,其中,所述刷杆包括第一杆段以及第二杆段,所述第一杆段通过所述第二杆段连接所述刷板,所述第一杆段的与所述长度方向垂直的横截面大于所述第二杆段的与所述长度方向垂直的横截面,以使所述第一杆段与所述第二杆段之间形成第二台阶结构,所述第二台阶结构具有朝向所述刷板设置的第二台阶面,所述套接部套接于所述第二杆段并与所述第二台阶面抵接。
  30. 根据权利要求29所述的刷头,其中,所述刷杆与所述刷板一体成型,所述刷杆具有与所述厚度方向垂直的中分面,所述第二台阶结构的与所述厚度方向垂直的最大横截面与所述中分面共面。
  31. 根据权利要求1-30中任一项所述的刷头,其中,
    所述刷毛包括增摩簇,所述增摩簇的表面粗糙度大于其他刷毛的表面粗糙度。
  32. 根据权利要求31所述的刷头,其中,所述增摩簇包括刷丝和摩擦结构,所述刷丝的外表面设有所述摩擦结构,所述摩擦结构凸出于所述刷丝的外表面;或
    所述增摩簇的外表面被构造成凹凸不平的形状,以增大所述增摩簇的外表面与待刷洗物之间的摩擦系数;或
    所述增摩簇包括基材和增摩颗粒,所述基材与增摩颗粒一体成型形成,所述增摩颗粒与待刷洗物之间的摩擦系数大于所述基材与同一待刷洗物之间的摩擦系数,以增大所述增摩簇与待刷洗物之间的摩擦系数。
  33. 根据权利要求1-32中任一项所述的刷头,其中,所述植毛面具有第一区域和第二区域,所述第一区域和所述第二区域在所述长度方向分布,且所述第一区域相较于所述第二区域更靠近所述刷杆;
    所述刷毛包括:
    第一刷毛组,设置于所述第一区域,所述第一刷毛组至少包括所述增摩簇;以及,
    第二刷毛组,设置于所述第二区域。
  34. 根据权利要求31-33中任一项所述的刷头,其中,所述增摩簇具有远离所述植毛面的自由端及位于所述自由端与所述植毛面之间的侧壁面,所述自由端和所述侧壁面中的至少一者与待刷洗物之间的摩擦系数大于除所述增摩簇之外的其余刷毛与同一待刷洗物之间的摩擦系数。
  35. 根据权利要求31-34中任一项所述的刷头,其中,
    至少部分所述增摩簇的延伸方向与所述植毛面之间的夹角呈锐角或者钝角。
  36. 根据权利要求31-35中任一项所述的刷头,其中,所述刷毛还包括颜色指示簇,所述颜色指示簇的颜色至少与所述增摩簇的颜色不同,且所述颜色指示簇的颜色随着所述颜色指示簇的使用次数和/或使用时间的增加而发生变化。
  37. 根据权利要求1-36中任一项所述的刷头,其中,所述刷毛包括第一刷毛组和第二刷毛组,所述第一刷毛组相较于所述第二刷毛组更靠近所述刷杆;
    在垂直于所述植毛面的方向上,所述第一刷毛组的高度低于所述第二刷毛组的高度;和/或,
    自所述刷杆指向所述刷板的方向,所述第一刷毛组的高度逐渐减小且所述第二刷毛组的高度逐渐增大;和/或,
    所述第一刷毛组和所述第二刷毛组相互靠近的两端相对于所述植毛面等高。
  38. 根据权利要求37所述的刷头,其中,所述第二刷毛组远离所述第一刷毛组的一端,与所述第一刷毛组远离所述第二刷毛组的一端相对于所述植毛面的高度差大于等于1毫米且小于等于4毫米。
  39. 根据权利要求31-38中任一项所述的刷头,其中,所述刷毛还包括颜色指示簇,所述增摩簇在 所述植毛面上所占的面积大于所述颜色指示簇在所述植毛面上所占的面积。
  40. 根据权利要求31-39中任一项所述的刷头,其中,
    所述刷毛还包括第一含氟簇,所述增摩簇环绕所述第一含氟簇设置;和/或
    所述刷毛还包括颜色指示簇和第二含氟簇,所述颜色指示簇环绕所述第二含氟簇设置。
  41. 根据权利要求40所述的刷头,其中,所述刷毛包括第一刷毛组和第二刷毛组,所述第一刷毛组相较于所述第二刷毛组更靠近所述刷杆,所述第一刷毛组包括所述增摩簇和所述第一含氟簇,所述第二刷毛组包括所述颜色指示簇和所述第二含氟簇;
    所述第一刷毛组还包括第三含氟簇,至少部分所述第三含氟簇设于所述增摩簇远离所述颜色指示簇的一侧;和/或
    所述第二刷毛组还包括第四含氟簇,至少部分所述第四含氟簇设于所述颜色指示簇和所述增摩簇之间。
  42. 根据权利要求40所述的刷头,其中,所述刷毛包括第一刷毛组和第二刷毛组,所述第一刷毛组相较于所述第二刷毛组更靠近所述刷杆,所述第一刷毛组包括所述增摩簇和所述第一含氟簇,所述第二刷毛组包括所述颜色指示簇和所述第二含氟簇;
    所述增摩簇的颜色、所述颜色指示簇的颜色以及所述第一含氟簇的颜色互不相同,所述第一含氟簇的颜色和所述第二含氟簇的颜色相同。
  43. 根据权利要求42所述的刷头,其中,所述植毛面具有关于所述长度方向对称设置的两条弧状的边缘线,自靠近所述刷杆的一侧至远离所述刷杆的一侧,两条所述边缘线与所述长度方向之间的距离先增大后减小。
  44. 根据权利要求1-43中任一项所述的刷头,其中,所述刷毛包括在长度方向依次分布且具有高度的第一刷丝组、第二刷丝组及第三刷丝组,所述第一刷丝组、第二刷丝组及第三刷丝组的刷丝均与所述刷板固定并均在厚度方向向上伸出所述植毛面,所述第一刷丝组、第二刷丝组和第三刷丝组的高度是所述刷丝在所述厚度方向伸出所述植毛面的长度,所述第一刷丝组的各所述刷丝的尖端限定出第一刷面,所述第二刷丝组的各所述刷丝的尖端限定出第二刷面,所述第三刷丝组的各所述刷丝的尖端限定出第三刷面,在所述长度方向上,所述第一刷丝组的高度逐渐变高,所述第二刷丝组的高度逐渐变低,所述第三刷丝组的高度逐渐变高,所述第二刷面和所述第三刷面形成凹曲面,所述第二刷面与所述第一刷面相衔接的部分与所述第一刷面形成向远离所述植毛面拱起的凸曲面。
  45. 如权利要求44所述的刷头,其中,所述第三刷丝组的最高高度小于所述第一刷丝组的最高高度。
  46. 如权利要求44或45所述的刷头,其中,所述第一刷丝组在所述长度方向上的长度为A,所述刷毛在所述长度方向上的长度为B,且1/10≤A:B≤1/3。
  47. 如权利要求44-46中任一项所述的刷头,其中,在所述长度方向上,所述第一刷丝组的高度变化速率小于所述第二刷丝组的高度变化速率。
  48. 如权利要求44-47中任一项所述的刷头,其中,所述第一刷丝组在所述长度方向上的长度小于所述第二刷丝组在所述长度方向上的长度,所述第二刷丝组包括第一分布段和第二分布段,在所述长度方向上,所述第一分布段与所述第一刷丝组衔接,所述第二分布段与所述第三刷丝组衔接;在所述长度方向上,所述第一分布段的高度变化速率大于所述第一刷丝组的高度变化速率,且,所述第一刷丝组的高度变化速率大于所述第二分布段的高度变化速率。
  49. 如权利要求48所述的刷头,其中,所述第一刷丝组和所述第一段在所述植毛面上的正投影的面积和小于所述第二段和所述第三刷丝组在所述植毛面上的正投影的面积和。
  50. 如权利要求44-49中任一项所述的刷头,其中,所述第一刷丝组在所述长度方向上的长度为2mm~6mm。
  51. 如权利要求44-50中任一项所述的刷头,其中,所述第一刷丝组的最高高度和最低高度的高度差为1mm~3.5mm。
  52. 如权利要求44-51中任一项所述的刷头,其中,所述第三刷丝组的最高高度和最低高度的高度差为0.5mm~2.5mm。
  53. 如权利要求44-52中任一项所述的刷头,其中,所述第一刷丝组的最高高度和所述第三刷丝组的最高高度的高度差为0.5mm~1.8mm,且所述第一刷丝组的最高高度大于所述第三刷丝组的最高高度。
  54. 如权利要求44-53中任一项所述的刷头,其中,所述第一刷丝组的最高高度和所述第三刷丝组的最低高度的高度差为1.5mm~2.5mm。
  55. 如权利要求44-54中任一项所述的刷头,其中,所述第一刷丝组在宽度方向上的最大宽度小于所述第二刷丝组在所述宽度方向上的最大宽度,所述宽度方向与所述长度方向和所述厚度方向均垂直。
  56. 如权利要求44-55中任一项所述的刷头,其中,所述第三刷丝组的一部分所述刷丝相对所述植毛面倾斜设置。
  57. 如权利要求44-56中任一项所述的刷头,其中,所第一刷丝组包括多个第一刷丝簇,所述第二刷丝组包括多个第二刷丝簇,所述第三刷丝组包括多个第三刷丝簇,所有所述第一刷丝簇和一部分所述第二刷丝簇围成一圈形成第一刷毛环,一部分所述第三刷丝簇围成一圈形成第二刷毛环。
  58. 如权利要求57所述的刷头,其中,围出所述第一刷毛环的各所述第一刷丝簇在所述植毛面上的正投影的面积和为S1,围出所述第一刷毛环的各所述第二刷丝簇在所述植毛面上的正投影的面积和为S2,且S1大于S2。
  59. 如权利要求57所述的刷头,其中,所述刷毛还包括第一中间刷丝簇和第二中间刷丝簇,所述第一刷毛环环绕所述第一中间刷丝簇,所述第二刷毛环环绕所述第二中间刷丝簇。
  60. 如权利要求57所述的刷头,其中,所述第一刷丝簇的刷丝的数量小于所述第三刷丝簇的刷丝的数量,且所述第一刷丝组的第一刷丝簇的密度大于所述第三刷丝组的第三刷丝簇的密度。
  61. 如权利要求57所述的刷头,其中,对于邻近所述刷板周缘的刷丝簇,位于外侧的所述刷丝的高度低于位于内侧的所述刷丝的高度。
  62. 根据权利要求1-61中任一项所述的刷头,其中,所述植毛板具有与长度方向垂直的宽度方向,所述植毛面上开设有多个用于固定刷毛的植毛孔;
    所述植毛面包括沿所述长度方向排布的第一植毛孔区和第二植毛孔区,所述第一植毛孔区包括至少一个第一中心植毛孔和围绕所述第一中心植毛孔间隔设置的第一辅助植毛孔,所述第二植毛孔区包括多个间隔设置的第二辅助植毛孔,其中,所述第一植毛孔区的植毛孔密度与所述第二植毛孔区的植毛孔密度不同;
    所述植毛孔的轮廓线沿所述长度方向落在所述宽度方向上的投影为第一投影,且至少部分所述第二辅助植毛孔的至少部分投影位于相邻两个第一辅助植毛孔的投影间隔中,和/或,至少部分所述第一辅助植毛孔的至少部分投影位于相邻两个第二辅助植毛孔的投影间隔中,使得所述植毛孔的第一投影相互连接形成一条连续的线段。
  63. 根据权利要求62所述的刷头,其中,
    所述第一植毛孔区靠近所述植毛面的自由端;
    所述第二植毛孔区包括至少一个第二中心植毛孔和围绕所述第二中心植毛孔间隔设置的多个所述第二辅助植毛孔;
    其中,至少部分所述第一辅助植毛孔的至少部分位于相邻两个所述第二辅助植毛孔的投影间隔中。
  64. 根据权利要求63所述的刷头,其中,
    至少部分所述第一辅助植毛孔位于围绕所述第一中心植毛孔的第一圆周上;
    至少部分所述第二辅助植毛孔位于围绕所述第二中心植毛孔的第二圆周上。
  65. 根据权利要求64所述的刷头,其中,所述第一圆周所围成的面积为所述第二圆周所围成的面积的45%-75%。
  66. 根据权利要求64所述的刷头,其中,所述第一圆周上的第一辅助植毛孔的开孔面积小于所述第二圆周上的第二辅助植毛孔的开孔面积。
  67. 根据权利要求66所述的刷头,其中,所述第一圆周上的第一辅助植毛孔的开孔面积为所述第二圆周上的第二辅助植毛孔的开孔面积的50%-85%。
  68. 根据权利要求64所述的刷头,其中,位于所述第一圆周上的第一辅助植毛孔和位于所述第二圆周上的第二辅助植毛孔为椭圆形、六边形或长方形。
  69. 根据权利要求64所述的刷头,其中,在所述第一圆周和第二圆周之间设置有多个第一加强植毛孔,所述第一加强植毛孔位于所述第一植毛孔区内,且所述第一加强植毛孔设置于所述第一辅助植毛孔与第二辅助植毛孔沿所述宽度方向的间隔中。
  70. 根据权利要求69所述的刷头,其中,所述多个第一加强植毛孔的形状与位于所述第一圆周上的第一辅助植毛孔以及位于所述第二圆周上的第二辅助植毛孔的形状不同,并且从所述第一圆周与所述第二圆周间距最小处向所述植毛面的两个长侧边方向排布。
  71. 根据权利要求64所述的刷头,其中,在所述第二圆周远离所述第一圆周的一侧设置有多个第二加强植毛孔,所述第二加强植毛孔位于所述第二植毛孔区内,且所述第二加强植毛孔设置于所述第一辅助植毛孔与第二辅助植毛孔沿所述宽度方向的间隔中。
  72. 根据权利要求63-71中任一项所述的刷头,其中,相邻的所述植毛孔之间的最小间距不大于3mm且不小于0.5mm。
  73. 根据权利要求62所述的刷头,其中,
    所述植毛孔的轮廓线沿所述宽度方向落在所述长度方向上的投影为第二投影;
    在所述植毛面长度方向上的最外侧的两个相对设置的所述植毛孔的连线沿所述宽度方向落在所述长度方向上的投影为第三投影;
    且所述第二投影的总长度不小于所述第三投影的长度的85%。
  74. 根据权利要求62所述的刷头,其中,所述背板上开设有凹槽,所述植毛板通过粘接或者与所述背板一体成型地安装于所述凹槽内。
  75. 一种电动牙刷,其中,包括:
    如权利要求1-74任一项所述刷头;以及
    刷柄组件,所述刷柄组件与所述刷头可拆卸连接。
PCT/CN2023/120651 2022-09-23 2023-09-22 刷头以及电动牙刷 WO2024061342A1 (zh)

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CN202222549474.4U CN218737711U (zh) 2022-09-23 2022-09-23 牙刷头及牙刷
CN202222549713.6U CN218737704U (zh) 2022-09-23 2022-09-23 一种刷毛托板、牙刷头和牙刷
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CN202321557559.5U CN220193240U (zh) 2023-06-16 2023-06-16 刷头以及电动牙刷
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012000150A (ja) * 2010-06-14 2012-01-05 Panasonic Electric Works Co Ltd ブラシ体およびこれを備える歯ブラシ
CN216933572U (zh) * 2021-09-30 2022-07-12 广州星际悦动股份有限公司 电动牙刷头及电动牙刷
CN217138313U (zh) * 2021-12-16 2022-08-09 广州星际悦动股份有限公司 牙刷头和电动牙刷
CN218737712U (zh) * 2022-09-23 2023-03-28 广州星际悦动股份有限公司 刷头及牙刷
CN218737711U (zh) * 2022-09-23 2023-03-28 广州星际悦动股份有限公司 牙刷头及牙刷
CN218737704U (zh) * 2022-09-23 2023-03-28 广州星际悦动股份有限公司 一种刷毛托板、牙刷头和牙刷

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012000150A (ja) * 2010-06-14 2012-01-05 Panasonic Electric Works Co Ltd ブラシ体およびこれを備える歯ブラシ
CN216933572U (zh) * 2021-09-30 2022-07-12 广州星际悦动股份有限公司 电动牙刷头及电动牙刷
CN217138313U (zh) * 2021-12-16 2022-08-09 广州星际悦动股份有限公司 牙刷头和电动牙刷
CN218737712U (zh) * 2022-09-23 2023-03-28 广州星际悦动股份有限公司 刷头及牙刷
CN218737711U (zh) * 2022-09-23 2023-03-28 广州星际悦动股份有限公司 牙刷头及牙刷
CN218737704U (zh) * 2022-09-23 2023-03-28 广州星际悦动股份有限公司 一种刷毛托板、牙刷头和牙刷

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