CN211187615U

CN211187615U - Toothbrush connection structure, brush head structure and electric toothbrush

Info

Publication number: CN211187615U
Application number: CN201921795975.2U
Authority: CN
Inventors: 陈连成; 严锦来
Original assignee: Shenzhen Yunding Information Technology Co Ltd
Current assignee: Shenzhen Yunding Information Technology Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-08-07
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a toothbrush connection structure, first structure of brush and electric toothbrush, including main part, setting first mounting and the second mounting of setting in the main part, first mounting detachably is connected with the brush head, and the second mounting is used for being connected with the brush holder. In this embodiment, link together main part and brush head detachably through first mounting, link together brush holder and main part through the mounting, and then, link together brush head and brush holder through the connection structure in this embodiment, because connection structure is independent of brush head and brush holder, and then, when changing the brush head, need not to change connection structure, practice thrift the cost, when manufacturing the brush head moreover, because the simple structure of brush head, the process reduces, and production efficiency is higher.

Description

Toothbrush connection structure, brush head structure and electric toothbrush

Technical Field

The utility model relates to an electric toothbrush technical field especially relates to a toothbrush connection structure, brush first structure and electric toothbrush.

Background

With the improvement of living standard, the electric toothbrush gradually replaces the traditional toothbrush and becomes the mainstream tooth brushing tool of the public.

Electric toothbrush mainly includes brush head and the toothbrush handle of being connected with the brush head, usually when production brush head, brush head inside can set up a connection structure of being connected with the brush holder and can not follow the first interior dismantlement of brush, fix brush head on the brush holder through this connection structure, however, because the brush head is the part that belongs to periodic replacement, when changing brush head, also need to change brush head inside connection structure simultaneously, extravagant material cost, in addition, because the production processes of setting connection structure when brush head inside is complicated, low in production efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a toothbrush connection structure, brush first structure and electric toothbrush can practice thrift manufacturing cost, improves production efficiency.

According to the utility model discloses an aspect provides toothbrush connection structure, be in including main part, setting first mounting and setting in the main part are in second mounting in the main part, the main part passes through first mounting realizes detachable the being connected with the brush head, the main part passes through second mounting realizes detachable the being connected with the brush holder.

The first fixing piece comprises a connecting shaft, a fixing hole for fixing the connecting shaft is formed in the main body, and one end of the connecting shaft is fixedly installed in the fixing hole.

The connecting shaft is a metal shaft.

The main part is made by insulating material, be equipped with isolation portion in the main part, isolation portion is made by insulating material, isolation portion is located the fixed orifices is close to the tip of second mounting is with the interval motor shaft on metal axle and the brush holder.

The metal shaft and the main body are integrally formed.

The first fixing piece is provided with a limiting part for limiting the falling-off of the brush head.

The second fixing piece and the main body are integrally formed, and a mounting hole for mounting the motor shaft is formed in the second fixing piece.

The main body is provided with a counterweight groove, and the counterweight groove is used for placing a counterweight block.

According to a second aspect of the present invention, there is provided a toothbrush head structure, comprising a toothbrush head and a toothbrush connecting structure as described in any of the above embodiments, wherein the toothbrush head is detachably connected to the toothbrush connecting structure.

The first fixing piece comprises a connecting shaft, a fixing hole for fixing the connecting shaft is formed in the main body, one end of the connecting shaft is fixedly installed in the fixing hole, a shaft hole for installation of the connecting shaft is formed in the brush head, and the other end of the connecting shaft is fixedly installed in the shaft hole.

The first fixing piece is provided with a clamping groove or a clamping portion, the inner wall of the shaft hole is provided with the clamping portion or the clamping groove, and the clamping groove is connected with the clamping portion in a clamping mode.

According to a third aspect of the present invention, there is provided an electric toothbrush comprising a brush head, a brush handle and a toothbrush connecting structure as described in any of the above embodiments, wherein the toothbrush connecting structure is detachably connected to the brush head, and the toothbrush connecting structure is detachably connected to the brush handle.

The motor shaft fixing device is characterized in that a mounting hole for mounting the motor shaft is formed in the second fixing piece, a first through hole is formed in the main body and penetrates through the mounting hole, a second through hole corresponding to the first through hole in position is formed in the motor shaft, and the first through hole is connected with the second through hole through a fastener.

Implement the embodiment of the utility model provides a, will have following beneficial effect at least:

in this embodiment, link together main part and brush head detachably through first mounting, link together brush holder and main part through the second mounting, and then, will brush head and brush holder link together through the toothbrush connection structure in this embodiment, because toothbrush connection structure is independent of brush head and brush holder, and then, when changing brush head, need not to change toothbrush connection structure, practice thrift the cost, when manufacturing brush head moreover, because the simplistic structure of brush head, the process reduces, and production efficiency is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

FIG. 1 is an exploded view of an electric toothbrush in one embodiment;

FIG. 2 is a partial schematic structural view of the electric toothbrush in one embodiment;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of the cutting structure of FIG. 2;

FIG. 5 is a schematic view showing the overall structure of a toothbrush attachment structure in one embodiment;

FIG. 6 is a schematic view of the cutting structure of FIG. 5;

in the figure: 100. a toothbrush attachment structure; 110. a main body; 111. an isolation section; 112. a first through hole; 1121. an avoidance groove; 113. a fastener; 114. a fixing hole; 121. a connecting shaft; 122. a card slot; 130. a second fixing member; 131. mounting holes; 140. a counterweight groove; 141. a balancing weight; 200. a brush head; 210. a shaft hole; 220. an elastic rod; 221. a fastening part; 300. a brush handle; 310. a motor shaft; 311. a second via.

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 a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated, for example, up, down, front, rear, left, right, etc., referred to the orientation description is the orientation or positional relationship shown in the drawings, and is only for convenience of description of the embodiments of the present invention and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present invention.

Referring to fig. 1 to 6, the electric toothbrush in this embodiment includes a brush head 200, a brush handle 300, and a toothbrush connecting structure 100 for connecting the brush head 200 and the brush handle 300, the brush head 200 is detachably connected to the toothbrush connecting structure 100, the brush handle 300 is detachably connected to the toothbrush connecting structure 100, the brush head 200 has bristles for brushing teeth, a motor for driving the brush head 200 to vibrate is installed in the brush handle 300, the toothbrush connecting structure 100 includes a main body 110, and a first fixing member and a second fixing member 130 provided on the main body 110, the second fixing member 130 is detachably connected to the brush handle 300, the first fixing member is used for connecting the brush head 200, the first fixing member is detachably connected to the brush head 200, the brush head 200 is connected to the brush handle 300 by the connecting structure in this embodiment, since the toothbrush connecting structure 100 is independent from the brush head 200 and the brush handle 300, furthermore, when the brush head 200 is replaced, the toothbrush connecting structure 100 does not need to be replaced, the material of the toothbrush connecting structure 100 is saved, the cost is saved, and when the brush head 200 is produced and manufactured, because the structure of the brush head 200 is simplified, correspondingly, the production process of producing the brush head 200 is reduced, and the production efficiency of the brush head 200 is greatly improved.

Referring to fig. 4, 5 and 6, in this embodiment, the first fixing element includes a connecting shaft 121, the main body 110 has a fixing hole 114 for installing the connecting shaft 121, and one end of the connecting shaft 121 is fixedly installed in the fixing hole 114, preferably, the connecting shaft 121 is integrally formed with the main body 110 to improve the production efficiency and the strength of the product, and of course, in other embodiments, the connecting shaft 121 may also be installed in the fixing hole 114 by interference fit, or limited by a limiting block to prevent the connecting shaft 121 from coming out of the fixing hole 114; the brush head 200 is provided with a shaft hole 210 for mounting the connecting shaft 121, and the other end of the connecting shaft 121 is mounted in the shaft hole 210, preferably, the tolerance of the connection between the connecting shaft 121 and the shaft hole 210 is 0 to better transmit the force on the connecting shaft 121 to the brush head 200.

Specifically, when the connecting shaft 121 and the main body 110 are not integrally formed, in some embodiments, the main body 110 is provided with a first pin hole vertically penetrating through the fixing hole 114, the connecting shaft 121 is provided with a second pin hole at a position corresponding to the pin hole, and after the connecting shaft 121 is installed in the fixing hole 114, the first pin hole corresponds to the second pin hole, and the connecting shaft 121 and the main body 110 are fixedly connected together by installing pins in the first pin hole and the second pin hole.

Specifically, when the connecting shaft 121 is not integrally formed with the main body 110, in other embodiments, the main body 110 includes a first main body and a second main body that are symmetrical to each other, the first main body has a fixing column thereon, the second main body has a fixing groove thereon that is engaged with the fixing column, the first main body and the second main body are detachably connected together through the fixing column and the fixing groove, the fixing hole 114 is composed of a first fixing hole formed on the first main body and a second fixing hole formed on the second main body, the first fixing hole and the second fixing hole are combined to form the fixing hole 114 when the first main body and the second main body are fixed together, an inner wall of the fixing hole 114 extends toward the center thereof to form a limiting protrusion, the connecting shaft 121 has a limiting groove thereon that is engaged with the limiting protrusion, when the connecting shaft 121 is installed in the fixing hole 114, the limiting protrusion is engaged with the limiting groove, and then can prevent the connecting axle 121 from coming off from the body 110, fix more stably, when installing, now separate first main part and second main part, install the connecting axle 121 on first main part or on the second main part, later link together first main part and second main part, through above-mentioned mounting means, can be convenient install the connecting axle 121 on the body 110.

It should be noted that, when the connecting shaft 121 is integrally formed with the main body 110, the connecting shaft 121 and the main body 110 may also be provided with a limiting protrusion and a limiting groove structure to prevent the connecting shaft 121 from being separated from the main body 110.

Referring to fig. 4, in the present embodiment, the first fixing element has a position-limiting portion for limiting the falling-off of the brush head 200, and preferably, the position-limiting portion is integrally formed with the main body 110. Further preferably, the limiting portion is provided with a clamping groove 122, the inner wall of the shaft hole 210 of the brush head 200 is provided with a clamping portion 221 for matching with the clamping groove 122, when the connecting shaft 121 is installed in the shaft hole 210, the clamping groove 122 is clamped with the clamping portion 221, so as to further limit the relative position between the connecting shaft 121 and the brush head 200, and prevent the connecting shaft 121 from coming out of the shaft hole 210.

In some embodiments, the first fixing member has a first insertion hole, the brush head 200 has a second insertion hole at a position corresponding to the first insertion hole, and a pin or a bolt is inserted between the first insertion hole and the second insertion hole to fix the brush head 200 and the toothbrush connecting structure 100 together.

In this embodiment, the tolerance of the connection shaft 121 and the shaft hole 210 is set to 0, the shaft hole 210 is mainly matched with the connection shaft 121, the engaging groove 122 is matched with the engaging portion 221 to assist, and the connection shaft 121 is installed in the shaft hole 210, so that the dismounting is convenient and the fixing is stable.

Specifically, be equipped with the elastic rod 220 in the shaft hole 210, the one end and the brush head 200 fixed connection of elastic rod 220, block portion 221 sets up the other end at elastic rod 220, under the natural state, there is the clearance between the one end that elastic rod 220 was equipped with block portion 221 and the brush head 200 inner wall, in connecting axle 121 installation, spacing portion can extrude elastic rod 220 and move towards brush head 200 inner wall direction, until draw-in groove 122 is connected with block portion 221 block, when connecting axle 121 extracts, elastic rod 220 can resume original state, can be more convenient installation and dismantlement connecting axle 121 through elastic rod 220.

Preferably, the locking groove 122 is an arc-shaped groove, and the locking portion 221 has an arc-shaped curved surface to facilitate the detachment of the toothbrush head 200 from the toothbrush connecting structure 100. Of course, the engaging groove 122 or the engaging portion 221 may be made of an elastic material and may be deformed by a force so as to be separated from each other.

Preferably, the brush head 200, the elastic rod 220 and the engaging portion 221 are integrally formed to facilitate manufacturing and increase strength.

In this embodiment, the engaging groove 122 may be provided on the inner wall of the brush head 200, and the engaging portion 221 may be provided on the toothbrush attachment structure 100.

Referring to fig. 1-6, the connecting shaft 121 is preferably a metal shaft. The connecting shaft 121 is made of a metal material, so that the connecting strength between the toothbrush connecting structure 100 and the toothbrush head 200 can be improved to prolong the service life, wherein the metal material in this embodiment is a metal which is solid in a normal state, such as aluminum, iron, steel, copper, and the like, and preferably, the metal material in this embodiment is a metal or an alloy with a strength greater than that of aluminum.

Referring to fig. 1 to 4, in the embodiment, a motor is installed inside the handle 300, a motor shaft 310 extends from one end of the handle 300 connected to the toothbrush connecting structure 100, a mounting hole 131 adapted to the motor shaft 310 is formed in the second fixing member 130, the motor shaft 310 is installed in the mounting hole 131, the motor shaft 310 may be in interference fit, transition fit or clearance fit with the mounting hole 131, and preferably, a fit tolerance between the motor shaft 310 and the mounting hole 131 is 0 to better transmit a force on the motor shaft 310 to the toothbrush connecting structure 100. The force output by the motor is transmitted to the toothbrush connecting structure 100 through the motor shaft 310, and then the force output by the motor is transmitted to the toothbrush head 200 through the connecting shaft 121 on the toothbrush connecting structure 100, so as to drive the toothbrush head 200 to vibrate.

Referring to fig. 4, in this embodiment, the central axis of the fixing hole 114 formed in the second fixing member 130 and the central axis of the mounting hole 131 are the same axis, so as to better transmit the force output from the motor to the brush head 200.

Referring to fig. 4 and 6, in the present embodiment, the isolation portion 111 is disposed on the main body 110, the isolation portion 111 is located between the fixing hole 114 and the mounting hole 131, the isolation portion 111 is made of an insulating material, and the motor shaft 310 is separated from the metal shaft by the isolation portion 111, and particularly, when the connecting shaft 121 is a metal shaft, not only the strength of the connecting shaft 121 is increased, but also after the metal shaft is separated from the motor shaft 310 by the isolation portion 111, static electricity generated on the toothbrush connecting structure 100 is not easily transmitted to the motor shaft 310 through the metal shaft to affect the operation of the motor, and damage of internal devices of the electric toothbrush in the present embodiment due to electric shock caused by human factors can be prevented.

Preferably, the isolation portion 111 is integrally formed with the main body 110, so as to facilitate manufacturing and increase the connection strength between the isolation portion 111 and the main body 110. At this time, the mounting hole 131 is not communicated with the fixing hole 114, the isolation portion 111 is a part of the main body 110, and since the main body 110 is made of an insulating material, the connection shaft 121 and the motor shaft 310 can be isolated by the isolation portion 111 to prevent the influence of static electricity on the motor.

Of course, in other embodiments, the partition 111 may be provided separately from the body 110. Specifically, the fixing hole 114 communicates with the mounting hole 131, the isolation portion 111 is an insulating block having a shape similar to the inner wall of the fixing hole 114 or the inner wall of the mounting hole 131, and when mounting, the isolation portion 111 is mounted between the connecting shaft 121 and the motor shaft 310, so that the connecting shaft 121 and the motor shaft 310 can be prevented from being in direct contact, thereby preventing static electricity from affecting the motor.

Referring to fig. 3 to 6, in this embodiment, the second fixing member 130 is preferably integrally formed with the main body 110 to reinforce the strength of the toothbrush attachment structure 100. In this embodiment, the main body 110 has a fixing portion for fixing the motor shaft 310 to limit the motor shaft 310 from being removed from the mounting hole 131, preferably, the fixing portion is a first through hole 112 formed in the main body 110, the first through hole 112 passes through the mounting hole 131, the motor shaft 310 has a second through hole 311 corresponding to the first through hole 112, the first through hole 112 and the second through hole 311 are connected by a fastening member 113, the fastening member 113 may be a pin, a bolt, a fixing post, or the like, because the end of the pin or the bolt is generally larger than the diameter of the rod, both ends of the first through hole 112 in this embodiment extend outward in the radial direction to form an avoiding groove 1121, and the avoiding groove 1121 is used for placing the end of the fastening member 113. Further, the fastener 113 is prevented from being partially exposed to the outside of the body 110, which may affect the installation of the toothbrush attachment structure 100.

Referring to fig. 2 to 6, in this embodiment, a useful weight groove 140 is formed in the main body 110, a weight 141 is installed in the weight groove 140, and the weight 141 is used for adjusting the motion law of the toothbrush head 200, for example, adjusting the swing amplitude of the toothbrush head 200, and further reducing the noise during vibration, specifically, the weight groove 140 is an annular groove, and the central axis of the annular groove is the same as the central axis of the connecting shaft 121. And thus the weight of the toothbrush attachment structure 100 can be more easily calculated and adjusted.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. Toothbrush connection structure, its characterized in that is in including main part, setting first mounting and setting in the main part are in second mounting in the main part, the main part passes through first mounting realizes detachable the connection with the brush head, the main part passes through second mounting realizes detachable the connection with the brush holder.

2. The toothbrush connecting structure as claimed in claim 1, wherein the first fixing member includes a connecting shaft, the body is provided with a fixing hole for fixing the connecting shaft, and one end of the connecting shaft is fixedly installed in the fixing hole.

3. The toothbrush connecting structure according to claim 2, wherein the connecting shaft is a metal shaft.

4. A toothbrush connecting structure as claimed in claim 3, wherein the main body is made of an insulating material, and a spacer is provided on the main body, the spacer being made of an insulating material, and the spacer is located at an end of the fixing hole close to the second fixing member to space the metal shaft from the motor shaft on the handle.

5. The toothbrush attachment structure of claim 4, wherein the metal shaft is integrally formed with the body.

6. The toothbrush connecting structure as claimed in any one of claims 1 to 5, wherein the first fixing member has a stopper portion for restricting the head from coming off.

7. The toothbrush connecting structure as claimed in any one of claims 1 to 5, wherein the second fixing member is integrally formed with the main body, and the second fixing member is provided with a mounting hole for mounting a motor shaft.

8. The toothbrush connecting structure as claimed in any one of claims 1 to 5, wherein the main body is provided with a weight groove for accommodating a weight.

9. Brush head construction, comprising a brush head and a toothbrush attachment structure according to any of the preceding claims 1-8, the brush head being detachably connected to the toothbrush attachment structure.

10. The brush head structure of claim 9, wherein the first fixing member includes a connecting shaft, the main body is formed with a fixing hole for fixing the connecting shaft, one end of the connecting shaft is fixedly installed in the fixing hole, the brush head is formed with a shaft hole for installing the connecting shaft, and the other end of the connecting shaft is fixedly installed in the shaft hole.

11. The brush head structure of claim 10, wherein the first fixing member is provided with a locking groove or a locking portion, the inner wall of the shaft hole is provided with a locking portion or a locking groove, and the locking groove is connected with the locking portion in a locking manner.

12. An electric toothbrush comprising a head, a handle and a toothbrush attachment structure as claimed in any one of claims 1 to 8, the toothbrush attachment structure being removably connected to the head and the toothbrush attachment structure being removably connected to the handle.

13. The electric toothbrush according to claim 12, wherein the second fixing member has a mounting hole for mounting the motor shaft, the main body has a first through hole passing through the mounting hole, the motor shaft has a second through hole corresponding to the first through hole, and the first through hole and the second through hole are connected by a fastening member.