CN215130651U

CN215130651U - Electric toothbrush with stable toothbrush head connecting structure

Info

Publication number: CN215130651U
Application number: CN202120853673.7U
Authority: CN
Inventors: 吴永盛
Original assignee: Shenzhen Nianshengxing Technology Co ltd
Current assignee: Shenzhen Nianshengxing Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-12-14
Anticipated expiration: 2031-04-23

Abstract

The utility model relates to an electric toothbrush with stable toothbrush head connection structure, this electric toothbrush with stable toothbrush head connection structure includes handle main part, electronic subassembly and brush head assembly. One end of the handle main body is provided with a shell, a connecting rod and a vibration shaft. One end of the connecting rod is connected with the opening end of the shell, and the other end of the connecting rod is connected with the vibrating shaft. The brush head assembly is provided with a brush body and a fixing piece, the vibration shaft is located in a vibration cavity in the brush body, and the electric assembly is used for driving the vibration shaft to drive the brush body to vibrate together. The mounting is located the inside of the brush body, and the inside of mounting is provided with the slot that corresponds with the connecting rod, mounting and the integrated into one piece of the brush body, have improved the connectivity of brush head greatly.

Description

Electric toothbrush with stable toothbrush head connecting structure

Technical Field

The utility model relates to a toothbrush equipment field, in particular to electric toothbrush with stable toothbrush head connection structure.

Background

Compared with the common toothbrush, the electric toothbrush can more thoroughly remove dental plaque and reduce oral diseases such as gingivitis, periodontal disease, gingival bleeding and the like. The electric toothbrush enables the brush head to generate high-frequency vibration through the rapid rotation or vibration of the electric motor core, instantaneously decomposes the toothpaste into fine foam, and deeply cleans teeth gaps; meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massage effect on the gum tissue.

The existing vibration-type electric toothbrush usually adopts a mode that a connecting rod of a brush handle is inserted into a slot of a brush head to form interference fit, so that the brush handle and the brush head are connected, and the structure forming the slot is mutually independent from the brush head. In the process of high-frequency vibration of the toothbrush, the toothbrush head is easy to loosen and displace, so that the cleaning effect is reduced, and the user experience is poor.

It is desirable to provide a power toothbrush that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an electric toothbrush with stable toothbrush head connection structure, this electric toothbrush with stable toothbrush head connection structure includes handle main part, electronic subassembly and brush head assembly. One end of the handle main body is provided with a shell, a connecting rod and a vibration shaft. One end of the connecting rod is connected with the opening end of the shell, and the other end of the connecting rod is connected with the vibrating shaft. The brush head assembly is provided with a brush body and a fixing piece, the vibration shaft is located in a vibration cavity in the brush body, and the electric assembly is used for driving the vibration shaft to drive the brush body to vibrate together. The mounting is located the inside of the brush body, and the inside of mounting is provided with the slot that corresponds with the connecting rod, and mounting and brush body integrated into one piece have improved the connectivity of brush head greatly, have solved among the prior art problem that the connecting rod formed interference fit in inserting the slot of brush head and lead to the easy pine of brush head to take off the aversion.

In order to solve the above problems, the present invention comprises: an electric toothbrush having a stable head coupling structure, comprising:

a handle main body: a shell, a connecting rod and a vibration shaft are arranged at one end of the handle main body, an opening is formed in one end of the shell, one end of the connecting rod is connected with the opening, and the other end of the connecting rod is connected with the vibration shaft;

an electric component: the electric component is used for driving the vibration shaft to vibrate; and the number of the first and second groups,

the brush head component: the brush head assembly is provided with a brush body and a fixing piece, and a vibration cavity corresponding to the vibration shaft is arranged in the brush body; the fixing piece is located inside the brush body, a slot corresponding to the connecting rod is formed inside the fixing piece, and the fixing piece and the brush body are integrally formed.

Electric toothbrush with stable toothbrush head connection structure in, the connecting rod is kept away from open-ended one end is provided with the stopper, the inner wall of mounting be provided with the guide way and with the corresponding spacing groove of stopper, the guide way is followed the axial direction of the brush body is laid, the guide way with the spacing groove intercommunication. The guide groove facilitates the insertion and fastening of the connecting rod into the brush body.

Furthermore, the connecting rod still is provided with the connecting block along axial direction, the one end of connecting block with the stopper is connected. And a positioning groove is arranged in the guide groove and used for fixing the connecting block. When the limiting block is positioned in the limiting groove, the connecting block is positioned in the positioning groove. The positioning groove is used for fixing the connecting block, so that the limiting block is fixed in the limiting groove, and the brush head and the connecting rod are prevented from rotating relatively.

Furthermore, the connecting block is elastic, one end of the connecting block is connected with the connecting rod, the other end of the connecting block is connected with the limiting block and separated from the connecting rod, and the limiting block and the side face of the connecting rod are provided with gaps. When the connecting rod is inserted into the brush body, the inner wall of the guide groove extrudes the limiting block to be tightly attached to the connecting rod; when the limiting block is positioned in the limiting groove, the limiting block is in an initial position returned under the elastic deformation acting force of the connecting block, so that the limiting block is clamped in the limiting groove.

Furthermore, the connecting block and the limiting block are arranged to be T-shaped, so that the resistance between the connecting rod and the fixing piece is reduced.

In the electric toothbrush with stable toothbrush head connection structure, the mounting is elastic material, mounting one side with the inner wall fixed connection of the brush body, the opposite side of mounting with it is gapped between the brush body. The connecting rod is convenient to mount and the electric toothbrush plays a role in damping the brush body when in use, and the connecting rod is protected.

In the electric toothbrush with stable toothbrush head connection structure, the ladder is provided with first cavity and second cavity in the brush body still, the internal diameter of first cavity is greater than the internal diameter of second cavity, the mounting is located in the first cavity, the both ends of second cavity respectively with first cavity vibrations chamber intercommunication. The connecting rod with the one end that the vibrations hub connection is provided with the damping ring, the damping ring cup joints and establishes on the outer periphery of connecting rod, the damping ring is located in the second cavity, has reduced the connecting rod with the vibration range between the mounting. The second chamber is used for the transition of the first chamber and the vibration chamber, the length of the vibration effect is increased, the buffer vibration is also played, the connecting position between the connecting rod and the fixing piece is protected, and the connecting rod and the fixing piece are prevented from vibrating and falling off.

In the electric toothbrush with stable toothbrush head connection structure, the connecting rod with the one end that the opening is connected is provided with protruding ring, the diameter of protruding ring is greater than the open-ended internal diameter, protruding ring card is established inside the shell, the other end of connecting rod is worn to establish the opening with the mounting is connected. The bulge loop is used for fixing the connecting rod in the shell, and the structure is simple.

Furthermore, the connecting rod with the one end that the bellying ring is connected is provided with along axial direction's draw-in groove, the inside of handle main part be provided with the fixture block that the draw-in groove corresponds. The clamping groove is connected with the clamping block in a buckled mode, so that the connecting rod is prevented from rotating between the main body and the clamping groove when the clamping device is used.

Furthermore, the outer side of one end, connected with the opening, of the connecting rod is provided with a protruding block, and the protruding block is clamped inside the shell. The area of the cross section enclosed by the plurality of the convex blocks is larger than that of the opening, and the connecting rod penetrates through the opening. The protruding block is used for fixing the connecting rod in the shell, and the structure is simple, and the cost is low.

The utility model discloses owing to adopted foretell electric toothbrush who has stable toothbrush head connection structure, compare in prior art, its beneficial effect is: the utility model relates to an electric toothbrush with stable toothbrush head connection structure, this electric toothbrush with stable toothbrush head connection structure includes handle main part, electronic subassembly and brush head assembly. One end of the handle main body is provided with a shell, a connecting rod and a vibration shaft. One end of the connecting rod is connected with the opening end of the shell, and the other end of the connecting rod is connected with the vibrating shaft. The brush head assembly is provided with a brush body and a fixing piece, the vibration shaft is located in a vibration cavity in the brush body, and the electric assembly is used for driving the vibration shaft to drive the brush body to vibrate together. The mounting is located the inside of the brush body, and the inside of mounting is provided with the slot that corresponds with the connecting rod, and mounting and brush body integrated into one piece have improved the connectivity of brush head greatly, have solved among the prior art problem that the connecting rod formed interference fit in inserting the slot of brush head and lead to the easy pine of brush head to take off the aversion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.

Fig. 1 is a schematic view showing an embodiment of the electric toothbrush having a stable head coupling structure of the present invention.

Fig. 2 is a schematic view showing an exploded structure of an embodiment of the electric toothbrush having a stable toothbrush head coupling structure of the present invention.

Fig. 3 is a schematic view showing an embodiment of a connecting rod of the electric toothbrush having a stable toothbrush head connecting structure of the present invention.

Fig. 4 is a schematic sectional view showing an embodiment of the electric toothbrush having a stable head coupling structure of the present invention without a gap between the brush body and the fixing member.

Fig. 5 is a schematic sectional view showing an embodiment of the electric toothbrush having a stable toothbrush head coupling structure according to the present invention, in which a gap is formed between the brush body and the fixing member.

In the figure: 10. the electric toothbrush with the stable toothbrush head connecting structure comprises a handle body 11, a shell 111, a shell 112, a clamping block 113, a connecting rod 1131, a protruding ring 1132, a clamping groove 1133, a limiting block 1134, a connecting block 1135, a damping ring 114, a vibration shaft 12, an electric component 13, a toothbrush head component 131, a brush body 1311, a first chamber 1312, a second chamber 1313, a vibration chamber 1313, a fixing piece 132, a 1321, a guide groove 1322, a limiting groove 1323, a positioning groove 1324 and a gap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the directional terms, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", refer to the orientation of the drawings, and the directional terms are used for illustration and understanding, but not for limiting the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

Referring to fig. 1 and 2, in the present embodiment, the electric toothbrush 10 having a stable head coupling structure includes a handle body 11, a power assembly 12, and a head assembly 13. One end of the handle body 11 is provided with a housing 111, a connecting rod 113, and a vibration shaft 114. An opening is formed at one end of the housing 111, one end of the connecting rod 113 is connected to the opening end of the housing 111, and the other end of the connecting rod 113 is connected to the vibration shaft 114. The electric component 12 is located in the handle body 11, and the electric component 12 drives the vibration shaft 114 to vibrate through the connecting rod 113.

Referring to fig. 3, a protruding ring 1131 or a protruding block is disposed at one end of the connecting rod 113 connected to the opening of the housing 111, an area surrounded by the protruding ring 1131 or the protruding block is larger than an area of the opening, the protruding ring 1131 or the protruding block is clamped inside the housing 111, and the other end of the connecting rod 113 penetrates through the opening and is connected to the fixing member 132. The connecting rod 113 is further provided with a clamping groove 1132 along the axial direction at one end connected with the raised ring 1131, and a clamping block 112 corresponding to the clamping groove 1132 is arranged inside the handle main body 11. The engaging groove 1132 is connected with the engaging block 112 in a snap-fit manner, so as to prevent the connecting rod 113 from rotating with the main body during use.

In this embodiment, referring to fig. 4, the brush head assembly 13 is provided with a brush body 131 and a fixing member 132, and the fixing member 132 and the brush body 131 are integrally formed. The brush body 131 is stepped to provide a first chamber 1311, a second chamber 1312, and a vibration chamber 1313. The inner diameter of the first chamber 1311 is larger than that of the second chamber 1312, the fixing member 132 is located in the first chamber 1311, and both ends of the second chamber 1312 are respectively communicated with the first chamber 1311 and the vibration chamber 1313. The vibration shaft 114 is located in the vibration chamber 1313, and the vibration shaft 114 drives the brush body 131 to vibrate together through the side wall of the vibration chamber 1313. A damping ring 1135 is disposed at one end of the connecting rod 113 connected to the vibration shaft 114, the damping ring 1135 is disposed on an outer circumferential surface of the connecting rod 113, and the damping ring 1135 is located in the second cavity 1312, so as to reduce a vibration amplitude between the connecting rod 113 and the fixing member 132. The second chamber 1312 is used for transition between the first chamber 1311 and the vibration chamber 1313, increases the length of the vibration effect, and also plays a role in buffering vibration, protecting the connection position between the connecting rod 113 and the fixing member 132, and preventing the connecting rod 113 and the fixing member 132 from falling off due to vibration. Referring to fig. 5, the fixing member 132 is made of an elastic material, one side of the fixing member 132 is fixedly connected to the inner wall of the brush body 131, and a gap 1324 is formed between the other side of the fixing member 132 and the brush body 131. The connecting rod 113 can be conveniently installed, the electric toothbrush can absorb shock to the brush body 131 when in use, and the connecting rod 113 and the fixing part 132 can be firmly connected.

The fixing member 132 is disposed in the first chamber 1311 and the second chamber 1312 of the brush 131, a slot corresponding to the connecting rod 113 is disposed inside the fixing member 132, and the fixing member 132 and the brush 131 are integrally formed. The fixing member 132 includes a guide slot 1321, a limiting slot 1322 and a positioning slot 1323. The guide slot 1321 is provided on the inner wall of the fixing member 132, and a positioning slot 1323 is provided in the guide slot 1321. The limiting groove 1322 is arranged at one end of the guide groove 1321 close to the vibration chamber 1313, and the limiting groove 1322 is communicated with the guide groove 1321 and the positioning groove 1323. The end of the connecting rod 113 connected to the fixing member 132 is provided with a limiting block 1133 and a connecting block 1134. One end of the connecting block 1134 is connected with the limiting block 1133, and the connecting block 1134 and the limiting block 1133 are in a T-shaped structure. The limiting block 1133 of the connecting rod 113 is inserted into the guiding slot 1321 of the fixing member 132, and the connecting rod 113 is rotated to make the limiting block 1133 located in the limiting slot 1322, and the connecting block 1134 is clamped in the positioning slot 1323, so as to prevent the connecting rod 113 from rotating or prevent the limiting block 1133 from being separated from the limiting slot 1322.

Or, the connecting block 1134 is made of an elastic material, one end of the connecting block 1134 is connected with the connecting rod 113, the other end of the connecting block 1134 is connected with the limiting block 1133 and is separated from the connecting rod 113, and a gap is formed between the limiting block 1133 and the side surface of the connecting rod 113. When the connecting rod 113 is inserted into the brush body 131, the inner wall of the guide slot 1321 presses the limiting block 1133 to be tightly attached to the connecting rod 113; when the limiting block 1133 is located in the limiting groove 1322, the limiting block 1133 returns to the initial position under the elastic deformation acting force of the connecting block 1134, so that the limiting block 1133 is clamped in the limiting groove 1322.

The working principle of the utility model is as follows:

the engaging slot 1132 of the connecting rod 113 is abutted to the engaging block 112, and the connecting rod 113 is fixed to the handle body 11 by the engaging of the protruding ring 1131 or the protruding block at the engaging position of the housing 111. The stopper 1133 at the other end of the connecting rod 113 is placed in the guiding slot 1321 of the fixing member 132 to push the handle body 11 inwards, the stopper is located in the first chamber 1311 and the second chamber 1312, and the vibration shaft 114 is located in the vibration chamber 1313. The handle body 11 is rotated to position the limiting block 1133 in the limiting groove 1322, and the connecting block 1134 in the positioning groove 1323. When the electromotive assembly 12 is turned on, the electromotive assembly 12 drives the vibration shaft 114 to vibrate, and the vibration shaft 114 drives the brush body 131 to vibrate through the inner wall of the vibration chamber 1313. When the handle body 11 and the brush body 131 need to be separated, the handle body 11 is only required to be reversed, the limit block 1133 is removed from the limit groove 1322, and the connecting rod 113 is pulled out.

In this embodiment, the present invention relates to an electric toothbrush 10 having a stable head coupling structure, and the electric toothbrush 10 having a stable head coupling structure includes a handle body 11, a power module 12, and a head module 13. One end of the handle body 11 is provided with a housing 111, a connecting rod 113, and a vibration shaft 114. One end of the connecting rod 113 is connected to the open end of the housing 111, and the other end of the connecting rod 113 is connected to the vibration shaft 114. The brush head assembly 13 is provided with a brush body 131 and a fixing member 132, the vibration shaft 114 is located in a vibration cavity 1313 inside the brush body 131, and the electromotive assembly 12 is used for driving the vibration shaft 114 to drive the brush body 131 to vibrate together. The mounting 132 is located the inside of the brush body 131, and the inside of the mounting 132 is provided with the slot that corresponds with the connecting rod 113, and mounting 132 and the brush body 131 integrated into one piece have improved the connectivity of brush head greatly, have solved among the prior art that the connecting rod 113 forms interference fit in inserting the slot of brush head and have leaded to the problem that the easy pine of brush head shifts.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. An electric toothbrush having a stable head coupling structure, comprising:

the brush head component: a brush body and a fixed part are arranged at one end of the brush head component, a slot corresponding to the connecting rod is arranged in the fixed part, and the fixed part and the brush body are integrally formed; the inside of the brush body is provided with a vibration cavity corresponding to the vibration shaft.

2. The electric toothbrush with the stable toothbrush head connecting structure according to claim 1, wherein a stopper is disposed at an end of the connecting rod away from the opening, a guide groove and a stopper groove corresponding to the stopper are disposed on an inner wall of the fixing member, the guide groove is disposed along an axial direction of the brush body, and the guide groove is communicated with the stopper groove.

3. The electric toothbrush with the stable toothbrush head connecting structure according to claim 2, wherein the connecting rod is further provided with a connecting block in an axial direction, and one end of the connecting block is connected with the limiting block; a positioning groove is formed in the guide groove and used for fixing the connecting block; when the limiting block is positioned in the limiting groove, the connecting block is positioned in the positioning groove.

4. The electric toothbrush with the stable toothbrush head connecting structure according to claim 3, wherein the connecting block is made of an elastic material, one end of the connecting block is connected with the connecting rod, the other end of the connecting block is connected with the limiting block and separated from the connecting rod, and a gap is formed between the limiting block and the side surface of the connecting rod.

5. The electric toothbrush having a stabilized brush head coupling structure according to claim 3, wherein the coupling block and the stopper are constructed in a T-shaped structure.

6. The electric toothbrush having a stabilized brush head coupling structure according to claim 1, wherein the fixing member is an elastic material, one side of the fixing member is fixedly coupled to an inner wall of the brush body, and the other side of the fixing member has a gap from the brush body.

7. The electric toothbrush with the stable toothbrush head connecting structure according to claim 1, wherein a first cavity and a second cavity are further arranged in the toothbrush body in a stepped manner, the inner diameter of the first cavity is larger than that of the second cavity, the fixing member is located in the first cavity, and two ends of the second cavity are respectively communicated with the first cavity and the vibrating cavity; the connecting rod with the one end that the vibrations hub connection is provided with the damping ring, the damping ring cover is established on the outer periphery of connecting rod, the damping ring is located in the second cavity.

8. The electric toothbrush with the stable toothbrush head connection structure according to claim 1, wherein a protruding ring is provided at one end of the connection rod connected to the opening, the protruding ring has a diameter larger than an inner diameter of the opening, the protruding ring is engaged inside the housing, and the other end of the connection rod penetrates through the opening to be connected to the fixing member.

9. The electric toothbrush with the stable toothbrush head connecting structure according to claim 8, wherein a clamping groove is formed in one end of the connecting rod connected with the protruding ring along the axial direction, and a clamping block corresponding to the clamping groove is formed in the handle body.

10. The electric toothbrush having a stabilized brush head coupling structure according to claim 1, wherein a protrusion is provided at an outer side of an end of the coupling rod coupled to the opening, the protrusion being caught in the housing; the cross-sectional area enclosed by the plurality of convex blocks is larger than the area of the opening, and the connecting rod penetrates through the opening.