CN210727921U

CN210727921U - Electric tooth brush

Info

Publication number: CN210727921U
Application number: CN201920960793.XU
Authority: CN
Inventors: 黄拔梓; 黄道臣
Original assignee: Shenzhen Libode Technology Co ltd
Current assignee: Shenzhen Libode Technology Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-06-12
Anticipated expiration: 2029-06-20

Abstract

The utility model provides an electric toothbrush, include: the toothbrush head comprises a toothbrush head main body and a connecting plug connected with the toothbrush head main body, wherein the connecting plug is provided with a plug body connected with the toothbrush head main body and an elastic piece connected with the plug body and capable of elastically deforming, the plug body is provided with an insertion hole for inserting the transmission shaft, the elastic piece can elastically deform in the process that the transmission shaft is inserted into the insertion hole to avoid the transmission shaft, and the elastic piece can also elastically recover and be clamped into the clamping groove when the transmission shaft is inserted into the insertion hole to limit the transmission shaft from being pulled out of the insertion hole; the handheld handle is connected with the transmission shaft and is used for vibrating the transmission shaft, and transmits the vibration to the toothbrush head through the transmission shaft. The utility model discloses when using through inserting the transmission shaft locate the spliced eye in make the elastic component joint in the joint groove to the joint of toothbrush head and transmission shaft has been realized, is connected not hard up problem with the transmission shaft in order to prevent the toothbrush head.

Description

Electric tooth brush

Technical Field

The utility model belongs to the technical field of the toothbrush, especially, relate to an electric toothbrush.

Background

Electric toothbrush on the market generally includes brush head main part, handheld handle, connects in the transmission shaft of brush head main part and handheld handle, and for the change convenience of brush head main part, brush head main part cup joints usually in the transmission shaft in order to realize being connected with dismantling of transmission shaft, nevertheless often appears because cup joint not tightly lead to connecting the not hard up condition, and ten minutes influence uses and experiences.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric toothbrush, aim at solving among the prior art brush head main part and transmission shaft cup joint tightly and lead to connecting not hard up technical problem.

The utility model discloses a realize like this, an electric toothbrush, include:

the side wall of the transmission shaft is provided with a clamping groove;

the toothbrush head comprises a toothbrush head main body and a connecting plug connected with the toothbrush head main body, wherein the connecting plug is provided with a plug body connected with the toothbrush head main body and an elastic piece which is connected with the plug body and can elastically deform, the plug body is provided with an insertion hole for inserting the transmission shaft, the elastic piece can elastically deform in the process that the transmission shaft is inserted into the insertion hole so as to avoid the transmission shaft, and the elastic piece can elastically recover and be clamped into the clamping groove when the transmission shaft is inserted into the insertion hole so as to limit the transmission shaft from being pulled out of the insertion hole;

and the handheld handle is connected with the transmission shaft and used for vibrating the transmission shaft and transmitting the vibration to the toothbrush head through the transmission shaft.

Furthermore, the elastic element comprises an elastic sheet which is connected with the plug body and extends in the same direction as the transmission shaft and a clamping block which is connected with the elastic sheet and extends towards the insertion hole, and the clamping block is positioned in the clamping groove when the transmission shaft is inserted into the insertion hole.

Further, the joint groove is arranged along the circumferential extension of the transmission shaft.

Furthermore, the lateral wall of the plug body is provided with an avoiding hole penetrating through the wall of the inserting hole, the elastic sheet is connected to the wall of the avoiding hole and extends along the extending direction of the avoiding hole, and the avoiding hole is formed when the transmission shaft is inserted into the inserting hole and is right opposite to the clamping groove so that the clamping block is positioned in the clamping groove.

Furthermore, the side wall of the vibration end is provided with an axially extending tangent plane, and the groove wall of the insertion hole is attached to the outer wall of the transmission shaft.

Furthermore, the side wall of the plug body is provided with a dismounting hole penetrating through the wall of the inserting hole, the side wall of the transmission shaft is provided with a step structure, and the step structure is opposite to the dismounting hole when the transmission shaft is installed in the inserting hole.

Furthermore, the brush head main body faces one side of the handheld handle, a mounting groove is formed in the side, where the handheld handle is located, of the plug body, the plug body can be inserted into the mounting groove, the connecting plug further comprises a positioning block protruding from the side wall of the plug body, and the groove wall of the mounting groove is attached to the outer wall of the connecting plug.

Furthermore, the handheld handle comprises a handle body with an accommodating cavity, a power part and an end cover, wherein the power part is located in the accommodating cavity and used for providing vibration power for the transmission shaft, the end cover is connected to the handle body, a connecting hole penetrating through the end cover to the accommodating cavity is formed in the end cover, and the transmission shaft penetrates through the connecting hole and is connected to the power part.

Further, electric toothbrush still including connect in the antifouling piece of link, antifouling piece wear to locate connecting hole and protrusion in the end cover is towards one side of transmission shaft, antifouling piece seted up run through to the antifouling hole in holding chamber, the link wear to locate antifouling hole and connect in the power piece, the outer wall of antifouling piece install in the transmission shaft when in the plug hole the laminating in the cell wall of plug hole.

Furthermore, the electric toothbrush further comprises a waterproof rubber ring sleeved on the antifouling piece, wherein the inner wall of the waterproof rubber ring is attached to the outer wall of the antifouling piece, and the outer wall of the waterproof rubber ring is attached to the hole wall of the connecting hole.

The utility model discloses technical effect for prior art is: the utility model discloses when using through inserting the transmission shaft locate in the spliced eye make the elastic component joint in the joint groove to realized the joint of toothbrush head with the transmission shaft, the elastic component is connected with the cooperation in joint groove and has been played the positioning action to the toothbrush head, in order to prevent that toothbrush head and transmission shaft from being connected not hard up problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below 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.

Fig. 1 is a perspective view of an electric toothbrush according to an embodiment of the present invention;

fig. 2 is an exploded view of the electric toothbrush provided by the embodiment of the present invention;

fig. 3 is a partial sectional view of an electric toothbrush according to an embodiment of the present invention.

Description of reference numerals:

10. a drive shaft; 101. a clamping groove; 102. cutting into noodles; 11. a step structure; 20. a handle; 21. a handle body; 22. a power member; 23. an end cap; 30. a toothbrush head; 31. a brush head body; 311. a brush head rod; 312. brushing; 32. a connecting plug; 3201. avoiding holes; 321. a plug body; 322. an elastic member; 3221. a spring plate; 3222. a clamping block; 323. positioning blocks; 40. an antifouling member; 50. waterproof rubber ring

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 3, the present invention provides an electric toothbrush, which comprises a transmission shaft 10, a handle 20, a toothbrush head 30, a dirt-proof member 40 and a waterproof rubber ring 50.

Referring to fig. 2 to 3, a side wall of the transmission shaft 10 is provided with a clamping groove 101, the transmission shaft 10 is rod-shaped, and two ends of the transmission shaft are a connecting end and a vibrating end respectively.

Referring to fig. 2 to 3, the toothbrush head 30 includes a head main body 31 for brushing teeth and a coupling plug 32 coupled to the head main body 31 for coupling the drive shaft 10, the head main body 31 having a head shaft 311 and bristles 312 for brushing teeth, the head main body 31 being coupled to the coupling plug 32. Preferably, a mounting groove is opened on one side of the brush head main body 31 facing the handle 20, and the connecting plug 32 is inserted into the mounting groove to realize detachable connection.

Referring to fig. 2 to 3, the connection plug 32 has a plug body 321 connected to the brush head main body 31 and an elastic member 322 connected to the plug body 321 and capable of elastically deforming, the plug body 321 has an insertion hole for inserting the transmission shaft 10, the transmission shaft 10 is inserted into the insertion hole to be connected to the plug body 321, the elastic member 322 can be clamped in the clamping groove 101 when the transmission shaft 10 is installed in the insertion hole, preferably, the clamping groove 101 has a guide surface, or the elastic member 322 has a guide surface, so that when the brush head main body 31 needs to be replaced, the elastic member 322 can slide out of the clamping groove 101 through the guide surface, thereby separating the brush head main body 31 from the transmission shaft 10. Elastic member 322 can take place elastic deformation at the in-process that transmission shaft 10 inserted the spliced eye to dodge transmission shaft 10, elastic member 322 can also be when transmission shaft 10 inserts the spliced eye elastic recovery and block in the joint groove, pull out from the spliced eye with the restriction transmission shaft 10.

The handle 20 is connected to the driving shaft 10 and serves to vibrate the driving shaft 10 and transmit the vibration to the brush head 30 through the driving shaft 10. In use, a user holds the handle 20 to brush teeth.

The utility model discloses when using through inserting transmission shaft 10 and locating in the spliced eye make elastic component 322 joint in joint groove 101 to realized toothbrush head 30 and transmission shaft 10's joint, elastic component 322 is connected with the cooperation of joint groove 101 and has been played the positioning action to toothbrush head 30, in order to prevent that toothbrush head 30 and transmission shaft 10 from being connected not hard up problem.

Can realize pegging graft earlier with connecting plug 32 with brush head main part 31 when using, cup joint connecting plug 32 on transmission shaft 10 again to make elastic component 322 can joint in joint groove 101, just so realized the inseparable joint of brush head main part 31 with transmission shaft 10, prevent to connect not hard up problem. Preferably, the elastic element 322 can also elastically deform to abut against the bottom of the clamping groove 101 when the plug body 321 is installed in the installation groove. When using, can insert earlier transmission shaft 10 and locate in the spliced eye and make connecting plug 32 and transmission shaft 10 realize the joint through elastic component 322, thereby insert connecting plug 32 and locate in the mounting groove so that the cell wall of mounting groove can inwards tighten up elastic component 322 so that the tank bottom of elastic component 322 butt joint groove 101, can make connecting plug 32 and transmission shaft 10 be connected inseparabler like this, further prevent to connect not hard up problem. When disassembly is desired, the head body 31 can be removed and the connecting plug 32 can be removed to effect separation of the connecting plug 32 from the head 30.

Referring to fig. 3, further, the elastic element 322 includes an elastic piece 3221 connected to the plug body 321 and extending in the same direction as the transmission shaft 10, and a clamping block 3222 connected to the elastic piece 3221 and extending toward the insertion hole, wherein the clamping block 3222 is located in the clamping groove 101 when the transmission shaft 10 is installed in the insertion hole. In the process that the transmission shaft 10 is inserted into the insertion hole, the elastic piece 3221 can apply a force towards the transmission shaft 10 to the clamping block 3222, so that the clamping block 3222 can move towards the groove bottom of the clamping groove 101 and stay in the clamping groove 101 when reaching the clamping groove 101, the clamping block 3222 has a positioning effect on the toothbrush head 30, and the problem that the toothbrush head 30 is not connected tightly is solved.

Referring to fig. 2, preferably, the engagement groove 101 extends along the circumferential direction of the transmission shaft 10. Thus, the production is convenient, and the machining error is prevented from blocking the clamping between the clamping block 3222 and the clamping groove 101. Meanwhile, the user can realize the insertion connection of the toothbrush head 30 and the transmission shaft 10 at any angle in the installation process, and the installation is convenient and fast.

Referring to fig. 2, further, an avoiding hole 3201 penetrating to a wall of the insertion hole is formed in a side wall of the plug body 321, the elastic piece 3221 is connected to the wall of the avoiding hole 3201 and extends along an extending direction of the avoiding hole 3201, and the avoiding hole 3201 faces the clamping groove 101 when the transmission shaft 10 is inserted into the insertion hole, so that the clamping block 3222 is located in the clamping groove 101. The avoiding hole 3201 realizes the suspension of the elastic sheet 3221, and prevents the plug body 321 from obstructing the elastic deformation of the elastic sheet 3221.

Referring to fig. 2, preferably, the side wall of the vibration end has an axially extending cut surface 102, and the groove wall of the insertion hole is attached to the outer wall of the transmission shaft 10. The cut surface 102 causes the cross-section 102 of the vibrating end to be non-circular, providing a limit to prevent rotation of the brushhead 30 relative to the drive shaft 10.

Further, the side wall of the plug body 321 is provided with a dismounting hole penetrating through to the wall of the inserting hole, the side wall of the transmission shaft 10 is provided with a step structure 11, and the step structure 11 is opposite to the dismounting hole when the transmission shaft 10 is installed in the inserting hole. When the connecting plug 32 and the transmission shaft 10 need to be disassembled, the connecting plug 32 can be separated from the transmission shaft 10 by an external structural member penetrating the disassembling hole to abut against the step structure 11 and pushing the upper hole edge of the disassembling hole through leverage to drive the connecting plug 32 to move away from the handle 20.

Referring to fig. 2 to 3, the connecting plug 32 further includes a positioning block 323 protruding from a sidewall of the plug body 321, and a wall of the mounting groove is attached to an outer wall of the connecting plug 32. The positioning block 323 is used for preventing the connecting plug 32 from rotating in the mounting groove, and meanwhile, the positioning block 323 can be in interference fit with the mounting groove to increase the friction force between the connecting plug 32 and the wall of the mounting groove and improve the connection tightness.

Referring to fig. 1 to 3, further, the handle 20 includes a handle body 21 having an accommodating cavity, a power component 22 located in the accommodating cavity and used for providing a vibration power for the transmission shaft 10, and an end cover 23 connected to the handle body 21, wherein the end cover 23 is provided with a connecting hole penetrating through the accommodating cavity, and the transmission shaft 10 penetrates through the connecting hole and is connected to the power component 22. The end cap 23 enables the user to disassemble and assemble the handle 20, and in the assembled state, the toothbrush head 30 abuts against the end cap 23 to prevent the foam or the water from infiltrating into the accommodating cavity.

Referring to fig. 2 to 3, specifically, the anti-fouling member 40 is disposed through the connection hole and protrudes from one side of the end cover 23 facing the transmission shaft 10, the anti-fouling member 40 is disposed with an anti-fouling hole penetrating through the accommodation cavity, the connection end is disposed through the anti-fouling hole and connected to the power member 22, and an outer wall of the anti-fouling member 40 is attached to a groove wall of the insertion hole when the transmission shaft 10 is installed in the insertion hole. The contamination-proof member 40 protects the drive shaft 10 from the liquid penetrating from the gap between the brush head 30 and the end cap 23 to corrode the drive shaft 10. Preferably, the stain-proof member 40 is made of a corrosion-resistant material having a smooth surface to prevent sticking of the stains.

Referring to fig. 2 to 3, specifically, the anti-fouling member 40 is sleeved with the waterproof rubber ring 50, an inner wall of the waterproof rubber ring 50 is attached to an outer wall of the anti-fouling member 40, and an outer wall of the waterproof rubber ring 50 is attached to a hole wall of the connecting hole. Thus, the waterproof rubber ring 50 prevents external water from entering the accommodating cavity while buffering the vibration of the transmission shaft 10, and avoids short circuit of electronic devices in the accommodating cavity.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An electric toothbrush, comprising:

the side wall of the transmission shaft is provided with a clamping groove;

2. The electric toothbrush according to claim 1, wherein the elastic member comprises an elastic piece connected to the plug body and extending in the same direction as the transmission shaft and a clamping block connected to the elastic piece and extending toward the insertion hole, the elastic piece can be elastically deformed in the process that the transmission shaft is inserted into the insertion hole, so that the clamping block avoids the transmission shaft, and the elastic piece can elastically recover and drive the clamping block to be clamped into the clamping groove when the transmission shaft is inserted into the insertion hole, so as to limit the transmission shaft from being pulled out of the insertion hole.

3. The electric toothbrush according to claim 2, wherein the catching groove is formed to extend in a circumferential direction of the driving shaft.

4. The electric toothbrush according to claim 2, wherein the side wall of the plug body is provided with an avoiding hole penetrating through the wall of the insertion hole, the elastic piece is connected to the wall of the avoiding hole and extends along the extending direction of the avoiding hole, and the avoiding hole faces the engaging groove when the transmission shaft is inserted into the insertion hole, so that the engaging block is located in the engaging groove.

5. The powered toothbrush as defined in claim 1, wherein the side wall of the vibration end has an axially extending cut surface, and the wall of the insertion hole engages the outer wall of the drive shaft.

6. The electric toothbrush according to claim 1, wherein the side wall of the plug body is provided with a detaching hole penetrating to a groove wall of the insertion hole, and the side wall of the transmission shaft has a stepped structure facing the detaching hole when the transmission shaft is mounted in the insertion hole.

7. The electric toothbrush according to claim 1, wherein a mounting groove is formed in a side of the brush head body facing the handle, the plug body is inserted into the mounting groove, the connecting plug further comprises a positioning block protruding from a side wall of the plug body, and a wall of the mounting groove is attached to an outer wall of the connecting plug.

8. The electric toothbrush according to claim 1, wherein the handle comprises a handle body having a receiving cavity, a power member disposed in the receiving cavity for providing the transmission shaft with a vibration power, and an end cap connected to the handle body, the end cap having a connecting hole penetrating the receiving cavity, the transmission shaft passing through the connecting hole and being connected to the power member.

9. The electric toothbrush according to claim 8, further comprising a dirt preventing member connected to the connecting end, wherein the dirt preventing member is inserted into the connecting hole and protrudes from a side of the end cap facing the transmission shaft, the dirt preventing member is provided with a dirt preventing hole penetrating through the accommodating cavity, the connecting end is inserted into the dirt preventing hole and is connected to the power member, and an outer wall of the dirt preventing member is attached to a groove wall of the insertion hole when the transmission shaft is installed in the insertion hole.

10. The electric toothbrush according to claim 9, further comprising a waterproof rubber ring sleeved on the antifouling member, wherein an inner wall of the waterproof rubber ring is attached to an outer wall of the antifouling member and an outer wall thereof is attached to a hole wall of the connecting hole.