WO2020098244A1 - 一种牙刷的三面刷头结构和三面刷头的振动式电动牙刷 - Google Patents

一种牙刷的三面刷头结构和三面刷头的振动式电动牙刷 Download PDF

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Publication number
WO2020098244A1
WO2020098244A1 PCT/CN2019/088439 CN2019088439W WO2020098244A1 WO 2020098244 A1 WO2020098244 A1 WO 2020098244A1 CN 2019088439 W CN2019088439 W CN 2019088439W WO 2020098244 A1 WO2020098244 A1 WO 2020098244A1
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WIPO (PCT)
Prior art keywords
shaped
brush
bristle holder
brush head
bristles
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PCT/CN2019/088439
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English (en)
French (fr)
Inventor
曾百树
Original Assignee
曾百树
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Publication date
Priority claimed from CN201821888980.3U external-priority patent/CN209301369U/zh
Priority claimed from CN201821885510.1U external-priority patent/CN209301368U/zh
Application filed by 曾百树 filed Critical 曾百树
Publication of WO2020098244A1 publication Critical patent/WO2020098244A1/zh

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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like

Definitions

  • the invention relates to a toothbrush, in particular to a three-sided brush head structure of a toothbrush and a vibrating electric toothbrush with three-sided brush head.
  • the rapid rotation or vibration of the electric toothbrush causes the brush head to generate high-frequency vibration, instantly decomposing the toothpaste into fine foam, and deep cleaning the teeth.
  • the vibration of the bristles can promote blood circulation in the oral cavity, which has Massage effect.
  • Traditional electric toothbrushes have a rotating type and a reciprocating half-turn vibrating head type. When brushing teeth, you can only brush one side and then the other side, not both at the same time.
  • the utility model with patent number CN02251545.3 discloses a multi-faceted vibration head electric toothbrush.
  • the eccentric block is driven by a small motor to generate vibration.
  • the vibration head and the brush rod are softly connected.
  • the small motor is placed in the brush handle and driven by a battery.
  • the eccentric block in the inner cavity of the vibrating head is driven by the flexible spring shaft to generate high-speed rotation, and the multi-faced brush head vibrates to produce a vertical brush action, which can simultaneously clean the inside and outside of the teeth and the multiple sides of the crown.
  • the multi-faced brush head of the utility model has a single-slot or double-slot "H" shape, and there are bristles on three sides of the slot.
  • the bristle holder of the brush head is rigid and inelastic, and cannot automatically adapt to the size of the tooth shape when brushing teeth, which is easy to damage the gums. .
  • the technical problem to be solved by the present invention is to provide a three-sided brush head structure with good adaptability and not easy to damage the gums.
  • Another technical problem to be solved by the present invention is to provide a vibrating electric toothbrush with a three-sided brush head that has good adaptability and is not easy to damage the gums.
  • the technical solution adopted by the present invention is a three-sided brush head structure of a toothbrush, including a bristle holder and bristles, the bristle holder is U-shaped or H-shaped, and all or part is made of soft rubber; U The bristle holder consists of two side plates, a bottom plate and two curved connecting plates made of soft rubber. The bristles are planted on the inner walls of the side plates and the bottom plate to form a brush slot.
  • H-shaped bristle holder includes two side plates and a horizontal plate connected to the middle of the side plate, the bristles are arranged on the inner wall of the side plate and both sides of the horizontal plate, forming two upper and lower brush grooves; H-shaped bristle frame The bristles on the top are cylindrical, and the H bristle holder is an integral structure of soft plastic injection molding.
  • the outer side of the front end of the U-shaped bristle holder arc-shaped connecting plate includes a groove, and the outer side of the rear end of the side plate includes a protrusion, and the protrusion of the side plate is embedded in the groove of the arc-shaped connecting plate;
  • the outer sides of the left and right ends include grooves, and the outer sides of the rear end of the arc-shaped connecting plate include protrusions.
  • the protrusions of the arc-shaped connecting plate are embedded in the grooves of the bottom plate.
  • the U-shaped bristle holder arc-shaped connecting plate is a secondary rubber coating, and is connected to the side plate and the bottom plate through the secondary rubber coating;
  • the front end of the arc-shaped connecting plate includes a thin-walled layer and a thin-walled layer Wrapped around the outside of the side plates of the bristle holder;
  • the U-shaped bristle holder is wide at the front and narrow at the front, and the angle between the two sides of the bristle holder is 6-12 °.
  • the bristles on the inner walls of the H-shaped bristle holder brush grooves are inclined to the central axis of the brush groove, and the angle between the bristles on the inner walls of the brush grooves and the central axis of the cross plate of the bristle holder is 30 ° To 50 °; the two inner side walls of the H-shaped bristle holder brush groove are inclined to the central axis of the brush groove, and the angle between the two is 15 ° to 35 °.
  • the top of the cylindrical bristles at the bottom of the H-shaped bristle holder brush slot includes a plurality of fine bristle pillars, the plurality of fine bristle pillars are evenly distributed along the circumferential direction of the thin cylindrical bristles, and the diameter of the fine bristle pillars is five minutes One to one quarter.
  • the length of the second side plate of the H-shaped bristle holder is shorter than the length of the first side plate of the bristle holder, and the angle between the two ends of the bristle holder is 13 ° to 17 °; the side of the H-shaped brush holder The outer wall of the plate is curved.
  • a vibrating electric toothbrush with a three-sided brush head includes a brush head, a brush rod, a brush handle and a vibration motor.
  • the brush head adopts the above-mentioned brush head structure.
  • the bottom plate of the U-shaped bristle holder is connected to the top of the brush rod, and the two are of an integrated structure; the H-shaped bristle holder and the brush rod are covered with rubber and the upper part of the brush rod is inserted into the first part of the H-shaped bristle holder. In the connection between the side plate and the horizontal plate.
  • the vibration motor is an ultrasonic vibration motor
  • the body of the ultrasonic vibration motor is installed on the top of the brush handle, and the vibration main shaft of the ultrasonic vibration motor extends outward from the top of the brush handle; The lower end is clamped on the vibration main shaft of the ultrasonic vibration motor.
  • the bristle holder of the brush head of the present invention is made of soft rubber in whole or in part.
  • the bristle holder has good elasticity and good tolerance of the brush head. It can automatically adapt to the size of the tooth shape when brushing teeth, and it is not easy to damage the gums.
  • FIG. 1 is a perspective view of a vibratory electric toothbrush with a single slot three-sided brush head according to Embodiment 1 of the present invention.
  • FIG. 2 is an exploded view of a vibratory electric toothbrush with a single slot three-sided brush head according to Embodiment 1 of the present invention.
  • FIG. 3 is a front view of a vibratory electric toothbrush with a single-slot three-face brush head according to Embodiment 1 of the invention.
  • Fig. 4 is a rear view of the combination of the brush head and the brush rod of Example 1 of the present invention.
  • FIG. 5 is a right side view of a vibratory electric toothbrush with a single-slot three-face brush head according to Embodiment 1 of the present invention.
  • FIG. 6 is an exploded view of the combination of the brush head and the brush rod of Example 1 of the present invention.
  • Example 7 is a plan view of the brush head of Example 1 of the present invention.
  • FIG. 8 is a cross-sectional view taken along line A in FIG. 3.
  • Example 9 is a transverse cross-sectional view of a single-groove three-face brush head according to Example 2 of the present invention.
  • Fig. 10 is a perspective view of a vibratory electric toothbrush with a double-grooved three-face brush head according to Example 3 of the present invention.
  • Fig. 11 is an exploded view of a vibratory electric toothbrush with a double-grooved three-face brush head according to Example 3 of the present invention.
  • Fig. 12 is a front view of a vibratory electric toothbrush with a double-grooved three-face brush head according to Embodiment 3 of the present invention.
  • Fig. 13 is a cross-sectional view of the connection of the brush head and the brush rod according to Embodiment 3 of the present invention.
  • Fig. 14 is a right side view of a vibratory electric toothbrush with a double-grooved three-face brush head according to Example 3 of the present invention.
  • Fig. 15 is a front view of a double-groove three-face brush head according to Example 3 of the present invention.
  • Example 16 is a plan view of a double-groove three-face brush head of Example 3 of the present invention.
  • FIGS. 1 to 8 The structure of the vibratory electric toothbrush with a single-slot three-face brush head 11 according to Embodiment 1 of the present invention is shown in FIGS. 1 to 8, and includes a brush head 11, a brush rod 12, a brush handle 13, an ultrasonic vibration motor 14 and a charging base 15.
  • the brush head 11 is fixed to the top of the brush rod 12, the body of the ultrasonic vibration motor 14 is mounted on the top of the brush handle 13, and the vibration main shaft of the ultrasonic vibration motor 14 protrudes outward from the top of the brush handle 13.
  • the lower end of the brush rod 12 is clamped on the vibration main shaft of the ultrasonic vibration motor 14 and can be inserted and removed, which is convenient for replacing the brush rod and brush head assembly.
  • the brush head 11 includes bristles 9 and a front-opening U-shaped bristle holder.
  • the bristle holder includes two side plates 1, two curved connecting plates 2 made of soft rubber and a bottom plate 3, and the bristles 9 are planted on the side plates 1 and the inner wall of the bottom plate 3, the rear end of the side plate 1 and the two ends of the bottom plate 3 are connected by an arc-shaped connecting plate 2.
  • the bristles 9 are bundles of nylon filaments with a diameter of 0.1 mm.
  • the U-shaped bristle holder is wide at the front and narrow at the back, and the angle between the plates 1 on both sides of the bristle holder is 11 °.
  • the bottom plate 3 of the bristle holder is connected to the top of the brush rod 12, and the two are of an integrated structure.
  • the protrusion 101 of the side plate 1 is embedded in the groove 201 of the arc-shaped connecting plate 2.
  • a groove 301 is provided on the outer sides of the left and right ends of the bottom plate 3, and a protrusion 202 is provided on the outer side of the rear end of the arc-shaped connecting plate 2, and the protrusion 202 of the arc-shaped connecting plate 2 is embedded in the groove 301 of the bottom plate 3.
  • the arc-shaped connecting plate 2 is a secondary encapsulating part, and the encapsulating material adopts TPE 45 degree soft rubber material, which is formed by the secondary encapsulating and connected with the side plate 1 and the bottom plate 3 together.
  • the two side plates and the bottom plate of the U-shaped bristle holder of the vibrating electric toothbrush of the above embodiment of the present invention are connected by an arc-shaped connecting plate made of two pieces of soft rubber.
  • the U-shaped bristle holder has good elasticity, and the brush head is brushed It can automatically adapt to the size of the tooth shape, has good comfort, and is not easy to hurt the gums.
  • FIG. 9 The structure of the vibratory electric toothbrush head 11 of the single slot three-face brush head 11 of Embodiment 2 of the present invention is shown in FIG. 9, and the front end of the arc-shaped connecting plate 2 of the bristle holder of the embodiment 2 has a thin-walled layer 203. 203 covers the outer side of the side plate 1 of the bristle holder.
  • the two side plates of the bristle holder of Example 2 of the present invention are wrapped with soft rubber, which provides good comfort when brushing teeth, and the brush head will not damage the oral mucosa.
  • FIGS. 10 to 16 The structure of the vibrating electric toothbrush with a double-grooved three-face brush head according to Embodiment 3 of the present invention is shown in FIGS. 10 to 16 and includes a brush head 11, a brush rod 12, a brush handle 13, an ultrasonic vibration motor 14, and a charging base 15.
  • the brush head 11 is fixed at the top of the brush rod 12
  • the body of the ultrasonic vibration motor 14 is installed at the top of the brush handle 13
  • the vibration main axis of the ultrasonic vibration motor 14 extends outward from the top of the brush handle 13 Out.
  • the lower end of the brush rod 12 is clamped on the vibration main shaft of the ultrasonic vibration motor 14 and can be inserted and removed, which is convenient for replacing the brush rod and brush head assembly.
  • the brush head 11 includes a plurality of bristles and H-shaped bristle holders that are open at the upper and lower ends.
  • the H-shaped bristle holder includes two side plates 1 and a horizontal plate 2 connected to the middle of the side plates 1
  • the bristles 3 are arranged on the inner wall of the side plate 1 and the upper and lower sides of the horizontal plate 2 to form two upper and lower brush grooves 11A.
  • the lateral gap between the bristles 3A is 2 mm, and the teeth can be brushed up, down, back and forth while covering the inside and outside of the teeth.
  • the bristles 3 of Embodiment 3 of the present invention are columnar, and the bristle holder is an integral structure of soft rubber injection molding.
  • cylindrical bristles described in the present invention are mainly used to distinguish the individual root bristles from the bundle-shaped bristles.
  • the "cylindrical bristles” herein include cylindrical bristles and truncated cone bristles with a cone angle not greater than 12 °.
  • the bristles 3A on both inner side walls of the brush groove 11A and the central axis M-M of the brush groove 11A are inclined, and the angle between the bristles 3A on both inner side walls of the brush groove 11A and the central axis of the bristle holder cross plate 2 is 40 °.
  • the two inner side walls 101 and 102 of the brush slot 11A are inclined to the central axis MM of the brush slot 11A, the angle between the inner side wall 101 and the central axis MM of the brush slot is 27 °, and the inner wall 102 and the central axis MM of the brush slot The included angle is 22 °.
  • the top of the cylindrical bristles 3B of the bottom 11 of the brush groove 11A (on the horizontal plate 2) has four fine hair pillars 301.
  • the diameter of the fine bristle pillar 301 is one quarter to one fifth of the diameter of the cylindrical bristles, and they are evenly distributed circumferentially around the axis of the cylindrical bristles 3B.
  • the fine hair column 301 can penetrate deep into the crevices of the sulcus to remove tartar.
  • the upper part of the brush rod 12 is inserted into the connection portion of the side plate 1A and the horizontal plate 2 of the H-shaped bristle holder, and the formed brush rod 12 is placed in the mold of the silicone brush head for encapsulation to realize the brush head 11 is connected with the cover 12 of the brush rod.
  • the outer wall of the bristle holder side plate 1 is curved, the length of the bristle holder side plate 1B is shorter than the length of the bristle holder side plate 1A, and the angle between the front end surface and the rear end surface of the bristle holder is 15 °
  • Embodiment 3 of the invention The double-groove three-faced brush head vibrating electric toothbrush adopts the all-inclusive silicone brush head, which can wrap the inner and outer teeth of the upper and lower teeth at one time to wrap the teeth at a time. There is no dead angle in all directions. 150 grams of strength wraps the teeth.
  • the bristle holder and bristles of the embodiment 3 of the present invention are an integral structure of soft plastic injection molding.
  • the bristles on the side wall and the central axis of the bristle holder are diagonally crossed.
  • the bristle holder and the bristles have good elasticity, the tolerance of the brush head is good, and the teeth are brushed. It can automatically adapt to the size of the tooth shape, has good comfort, and is not easy to hurt the gums.

Abstract

本发明公开了一种牙刷的三面刷头结构和和三面刷头的振动式电动牙刷。三面刷头结构包括刷毛架和刷毛，所述的刷毛架为U形或H形，全部或部分用软胶制作；U形刷毛架包括两块侧板、一块底板和两块用软胶制作的弧形连接板，刷毛植在侧板和底板的内壁上，形成一个刷槽，侧板后端与底板的两端通过弧形连接板连接；H形刷毛架包括两块侧板和与侧板中部连接的横板，刷毛布置在侧板的内壁和横板的两侧，形成上下两个刷槽；H形刷毛架上的刷毛为柱状，与H刷毛架为软胶注塑成型的一体结构。本发明刷头的刷毛架全部或部分用软胶制作，刷毛架弹性好，刷头的容让性好，刷牙时能够自动适应牙形的大小，不易伤害牙龈。

Description

一种牙刷的三面刷头结构和三面刷头的振动式电动牙刷 [技术领域]
本发明涉及牙刷，尤其涉及一种牙刷的三面刷头结构和三面刷头的振动式电动牙刷。
[背景技术]
电动牙刷通过电动机芯的快速旋转或震动，使刷头产生高频震动，瞬间将牙膏分解成细微泡沫，深入清洁牙缝，与此同时，刷毛的颤动能促进口腔的血液循环，对牙龈组织有按摩效果。传统的电动动牙刷有旋转式和刷头往复半转振动式，刷牙时只能刷完一面再刷另一面，不能同时里外都刷。
专利号为CN02251545.3的实用新型公开了一种多面刷头振动式电动牙刷，由小电机带动偏心块产生振动，振动头与刷杆为软连接，小电机置于刷柄内由电池驱动，通过弹簧软轴带动振动头内腔中的偏心块高速旋转产生振动，使多面的刷头振动产生竖刷作用，可同时清洁牙齿内外及牙冠多面。该实用新型的多面刷头的为单槽或双槽“H”形，槽内三面都有刷毛，刷头的刷毛架刚性大、无弹性，刷牙时无法自动适应牙形的大小，易伤害牙龈。
[发明内容]
本发明要解决的技术问题是提供一种适应性好，不易伤害牙龈的三面刷头结构。
本发明另一个要解决的技术问题是提供一种适应性好，不易伤害牙龈的三面刷头的振动式电动牙刷。
为了解决上述技术问题，本发明采用的技术方案是，一种牙刷的三面刷头结构，包括刷毛架和刷毛，所述的刷毛架为U形或H形，全部或部分用软胶制作；U形刷毛架包括两块侧板、一块底板和两块用软胶制作的弧形连接板，刷毛植在侧板和底板的内壁上，形成一个刷槽，侧板后端与底板的两端通过弧形连接板连接；H形刷毛架包括两块侧板和与侧板中部连接的横板，刷毛布置在侧板的内壁和横板的两侧，形成上下两个刷槽；H形刷毛架上的刷毛为柱状，与H刷毛架为软胶注塑成型的一体结构。
以上所述的三面刷头结构，U形刷毛架弧形连接板前端的外侧包括凹槽，侧板后端的外侧包括凸起，侧板的凸起嵌入到弧形连接板的凹槽中；底板左右两端的外侧包括凹槽，弧形连接板后端的外侧包括凸起，弧形连接板的凸起嵌入到底板的凹槽中。
以上所述的三面刷头结构，U形刷毛架弧形连接板为二次包胶件，通过二次包胶与侧板和底板连接；弧形连接板的前端包括薄壁层，薄壁层包覆在刷毛架侧板的外侧；U形刷毛架前宽后窄，刷毛架两侧板之间的夹角为6-12°。
以上所述的三面刷头结构，H形刷毛架刷槽两内侧壁上的刷毛与刷槽的中轴线倾斜，刷槽两内侧壁上的刷毛与刷毛架横板中轴线的夹角为30°至50°；H形刷毛架刷槽的两内侧壁与刷槽的中轴线倾斜，两者之间的夹角为15°至35°。
以上所述的三面刷头结构，H形刷毛架刷槽槽底柱状刷毛的顶端包括复数根细毛柱，复数根细毛柱沿细柱状刷毛的周向均布，细毛柱的直径为柱状刷毛直径的五分之一至四分之一。
以上所述的三面刷头结构，H形刷毛架第二侧板的长度小于刷毛架第一侧板的长度，刷毛架两端面之间的夹角为13°至17°；H形刷毛架侧板的外壁为弧面。
一种三面刷头的振动式电动牙刷，包括刷头、刷杆、刷柄和振动电机，所述的刷头采用上述的刷头结构。
以上所述的振动式电动牙刷，U形刷毛架的底板与刷杆的顶端连接，两者为一体结构；H形刷毛架与刷杆包胶连接刷杆的上部插入到H形刷毛架的第一侧板与横板的连接部位中。
以上所述的振动式电动牙刷，所述的振动电机为超声波振动电机，超声波振动电机的本体安装在刷柄的顶部，超声波振动电机的振动主轴从刷柄的顶部向外伸出；刷杆的下端卡接在超声波振动电机的振动主轴上。
本发明刷头的刷毛架全部或部分用软胶制作，刷毛架弹性好，刷头的容让性好，刷牙时能够自动适应牙形的大小，不易伤害牙龈。
[附图说明]
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图1是本发明实施例1单槽三面刷头的振动式电动牙刷的立体图。
图2是本发明实施例1单槽三面刷头的振动式电动牙刷的分解图。
图3是本发明实施例1单槽三面刷头的振动式电动牙刷的主视图。
图4是本发明实施例1刷头和刷杆组合的后视图。
图5是本发明实施例1单槽三面刷头的振动式电动牙刷右视图。
图6是本发明实施例1刷头和刷杆组合的的分解图。
图7是本发明实施例1刷头的俯视图。
图8是图3中的A向剖面图。
图9是本发明实施例2单槽三面刷头的横向剖面图。
图10是本发明实施例3双槽三面刷头的振动式电动牙刷的立体图。
图11是本发明实施例3双槽三面刷头的振动式电动牙刷的分解图。
图12是本发明实施例3双槽三面刷头的振动式电动牙刷的主视图。
图13是本发明实施例3刷头与刷杆连接的剖视图。
图14是本发明实施例3双槽三面刷头的振动式电动牙刷的右视图。
图15是本发明实施例3双槽三面刷头的主视图。
图16是本发明实施例3双槽三面刷头的俯视图。
[具体实施方式]
本发明实施例1单槽三面刷头11的振动式电动牙刷的结构如图1至图8所示，包括刷头11、刷杆12、刷柄13、超声波振动电机14和充电座15。
刷头11固定在刷杆12的顶端，超声波振动电机14的本体安装在刷柄13的顶部，超声波振动电机14的振动主轴从刷柄13的顶部向外伸出。刷杆12的下端卡接在超声波振动电机14的振动主轴上，可以插拔，便于更换刷杆与刷头组件。
刷头11包括刷毛9和前部开口的、U字形的刷毛架，刷毛架包括两块侧板1、两块用软胶制作的弧形连接板2和一块底板3，刷毛9植 在侧板1和底板3的内壁上，侧板1的后端与底板3的两端通过弧形连接板2连接。刷毛9为直径0.1mm尼龙丝组成的毛束。
U字形的刷毛架前宽后窄，刷毛架两侧板1之间的夹角为11°刷毛架的底板3与刷杆12的顶端连接，两者为一体结构。
弧形连接板2前端的外侧有一个凹槽201，侧板1后端的外侧有一个凸起101，侧板1的凸起101嵌入到弧形连接板2的凹槽201中。底板3左右两端的外侧有一个凹槽301，弧形连接板2后端的外侧有一个凸起202，弧形连接板2的凸起202嵌入到底板3的凹槽301中。弧形连接板2为二次包胶件，包胶材料采用TPE45度软胶材料，通过二次包胶成型并与侧板1和底板3连接在一起。
本发明以上实施例的振动式电动牙刷U字形的刷毛架的两块侧板和底板用两块软胶制作的弧形连接板连接，U字形的刷毛架具有很好的弹性，刷牙时刷头能够自动适应牙形的大小，舒适性好，且不易伤害牙龈。
本发明实施例2单槽三面刷头11的振动式电动牙刷刷头11的结构如图9所示，实施例2刷毛架的弧形连接板2的前端有一个薄壁层203，薄壁层203包覆在刷毛架侧板1的外侧。本发明实施例2的刷毛架的两块侧板用软胶包裹，刷牙时舒适性好，且刷头不会损伤口腔粘膜。
本发明实施例3双槽三面刷头的振动式电动牙刷的结构如图10至图16所示，包括刷头11、刷杆12、刷柄13、超声波振动电机14和充电座15。
如图10至图14所示，刷头11固定在刷杆12的顶端，超声波振 动电机14的本体安装在刷柄13的顶部，超声波振动电机14的振动主轴从刷柄13的顶部向外伸出。刷杆12的下端卡接在超声波振动电机14的振动主轴上，可以插拔，便于更换刷杆与刷头组件。
如图15和图16所示，刷头11包括诸多刷毛和上下两端开口的、H形的刷毛架，H形的刷毛架包括两块侧板1和与侧板1中部连接的横板2，刷毛3布置在侧板1的内壁和横板2的上下两侧，形成上下两个刷槽11A。刷槽11A中，刷毛3A之间的横向缝隙为2mm，可以在包住牙齿内外的同时上下、前后刷牙。
本发明实施例3的刷毛3为柱状，与刷毛架为软胶注塑成型的一体结构。
本发明所描述的柱状刷毛主要用于区别于束状刷毛的独根刷毛，这里的“柱状刷毛”包括柱形刷毛和锥角不大于12°的截锥形刷毛。
刷槽11A两内侧壁上的刷毛3A与刷槽11A的中轴线M-M倾斜，刷槽11A两内侧壁上的刷毛3A与刷毛架横板2中轴线的夹角为40°。
刷槽11A的两内侧壁101和102与刷槽11A的中轴线M-M倾斜，内侧壁101与刷槽的中轴线M-M之间的夹角为27°，内侧壁102与刷槽的中轴线M-M之间的夹角为22°。
刷槽11A槽底(横板2上)的柱状刷毛3B的顶部有4根细毛柱301。细毛柱301的直径为柱状刷毛直径的四分之一至五分之一，围绕着柱状刷毛3B的轴线周向均布。刷牙时，细毛柱301可深入到牙沟牙缝内，将牙污牙垢清除出来。
如图13所示，刷杆12的上部插入到H形刷毛架的侧板1A与横 板2的连接部位中，成型的刷杆12放在硅胶刷头的模子中进行包胶，实现刷头11与刷杆12的包胶连接，。
如图15所示，刷毛架侧板1的外壁为弧面，刷毛架侧板1B的长度小于刷毛架侧板1A的长度，刷毛架前端面与后端面之间的夹角为15°
本发明实施例3双槽三面刷头的振动式电动牙刷采用全包式硅胶刷头，可以将上下牙内外6个面一次性包住刷牙，全方位无死角，刷毛采用硅胶软体，内外刷毛用150克的力度包住牙齿。
本发明实施例3的刷毛架与刷毛为软胶注塑成型的一体结构，侧壁上的刷毛与刷毛架的中轴线斜交，刷毛架和刷毛的弹性好，刷头的容让性好，刷牙时能够自动适应牙形的大小，舒适性好，且不易伤害牙龈。

Claims (9)

  1. 一种牙刷的三面刷头结构，包括刷毛架和刷毛，所述的刷毛架为U形或H形；U形刷毛架包括两块侧板和一块底板，刷毛植在侧板和底板的内壁上，形成一个刷槽；H形刷毛架包括两块侧板和与侧板中部连接的横板，刷毛布置在侧板的内壁和横板的两侧，形成上下两个刷槽；其特征在于，所述的刷毛架全部或部分用软胶制作：U形刷毛架包括两块用软胶制作的弧形连接板，侧板后端与底板的两端通过弧形连接板连接；H形刷毛架上的刷毛为柱状，与H刷毛架为软胶注塑成型的一体结构。
  2. 根据权利要求1所述的三面刷头结构，其特征在于，U形刷毛架弧形连接板前端的外侧包括凹槽，侧板后端的外侧包括凸起，侧板的凸起嵌入到弧形连接板的凹槽中；底板左右两端的外侧包括凹槽，弧形连接板后端的外侧包括凸起，弧形连接板的凸起嵌入到底板的凹槽中。
  3. 根据权利要求1所述的三面刷头结构，其特征在于，U形刷毛架弧形连接板为二次包胶件，通过二次包胶与侧板和底板连接；弧形连接板的前端包括薄壁层，薄壁层包覆在刷毛架侧板的外侧；U形刷毛架前宽后窄，刷毛架两侧板之间的夹角为6-12°。
  4. 根据权利要求1所述的三面刷头结构，其特征在于，H形刷毛架刷槽两内侧壁上的刷毛与刷槽的中轴线倾斜，刷槽两内侧壁上的刷毛与刷毛架横板中轴线的夹角为30°至50°；H形刷毛架刷槽的两内侧壁与刷槽的中轴线倾斜，两者之间的夹角为15°至35°。
  5. 根据权利要求1所述的三面刷头结构，其特征在于，H形刷毛架刷 槽槽底柱状刷毛的顶端包括复数根细毛柱，复数根细毛柱沿细柱状刷毛的周向均布，细毛柱的直径为柱状刷毛直径的五分之一至四分之一。
  6. 根据权利要求1所述的三面刷头结构，其特征在于，H形刷毛架第二侧板的长度小于刷毛架第一侧板的长度，刷毛架两端面之间的夹角为13°至17°；H形刷毛架侧板的外壁为弧面。
  7. 一种三面刷头的振动式电动牙刷，包括刷头、刷杆、刷柄和振动电机，其特征在于，所述的刷头采用权利要求1至6中任一权利要求所述的刷头结构。
  8. 根据权利要求7所述的振动式电动牙刷，其特征在于，U形刷毛架的底板与刷杆的顶端连接，两者为一体结构；H形刷毛架与刷杆包胶连接刷杆的上部插入到H形刷毛架的第一侧板与横板的连接部位中。
  9. 根据权利要求7所述的振动式电动牙刷，其特征在于，所述的振动电机为超声波振动电机，超声波振动电机的本体安装在刷柄的顶部，超声波振动电机的振动主轴从刷柄的顶部向外伸出；刷杆的下端卡接在超声波振动电机的振动主轴上。
PCT/CN2019/088439 2018-11-15 2019-05-24 一种牙刷的三面刷头结构和三面刷头的振动式电动牙刷 WO2020098244A1 (zh)

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CN201821885510.1U CN209301368U (zh) 2018-11-15 2018-11-15 双槽三面的刷头结构和双槽三面刷头的振动式电动牙刷

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Publication number Priority date Publication date Assignee Title
CN2865602Y (zh) * 2005-12-13 2007-02-07 蒙涛 一种电动牙刷
CN102905577A (zh) * 2009-10-01 2013-01-30 良口·麦克尔 柔性牙刷
CN205338071U (zh) * 2016-01-21 2016-06-29 熊尧辉 一种双刷头牙刷
CN207041209U (zh) * 2017-07-12 2018-02-27 厦门楷铭科技有限公司 咬动牙刷

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2865602Y (zh) * 2005-12-13 2007-02-07 蒙涛 一种电动牙刷
CN102905577A (zh) * 2009-10-01 2013-01-30 良口·麦克尔 柔性牙刷
CN205338071U (zh) * 2016-01-21 2016-06-29 熊尧辉 一种双刷头牙刷
CN207041209U (zh) * 2017-07-12 2018-02-27 厦门楷铭科技有限公司 咬动牙刷

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