CN217310670U

CN217310670U - Motor transmission device of electric toothbrush

Info

Publication number: CN217310670U
Application number: CN202123407753.9U
Authority: CN
Inventors: 叶新春
Original assignee: Kaihua Ruichang Motor Co ltd
Current assignee: Kaihua Ruichang Motor Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-30
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses an electric toothbrush motor transmission belongs to the electric toothbrush field, an electric toothbrush motor transmission, including casing and top cap, the top cap is installed the top of casing, be provided with the motor in the casing, the top of motor is provided with the output pole, be provided with in the casing and be located the dry piece of motor top, the top of dry piece is provided with sealed the pad, the top of sealed pad is provided with the cotton that absorbs water, the output pole with be provided with sealed rubber ring between the inner wall of top cap, still be provided with in the casing with the locating component that the motor cooperation was used, locating component includes that four locating plates and four are installed the stripper plate of top cap bottom, four the inboard of locating plate all with motor surface in close contact with. The sealing device can ensure that the sealing performance of the shell is good, and the whole assembly work is simpler and more convenient, and is convenient for subsequent maintenance work.

Description

Motor transmission device of electric toothbrush

Technical Field

The utility model relates to an electric toothbrush field, more specifically say, relate to an electric toothbrush motor transmission.

Background

The electric toothbrush has the working principle that the toothbrush head is driven to vibrate or rotate through high-speed vibration or rotation transmitted by the motor, so that the tooth cleaning effect of the toothbrush is improved, the motor is a core component of the electric toothbrush, and the motor needs to be sealed and protected because the using environment of the toothbrush is always in contact with a water source;

patent retrieval finds that publication No. CN213425904U discloses an electric toothbrush motor transmission device, which solves the problem of short service life of a traditional electric toothbrush motor shaft by arranging a plurality of sealing layers and water absorbing layers; by arranging the dustproof net, the problem that dust is easily accumulated on the motor shaft of the electric toothbrush is solved

However, the structure in the above scheme is complicated and tedious, more parts are provided, and the structure is compact in order to ensure the sealing performance, the motor needs to be inserted into the shell accurately, the surface of the motor needs to be in close contact with the inner wall of the shell, so that the stability of the motor during operation vibration is ensured, the motor is difficult to plug into the shell, the assembly efficiency is affected, and in the later maintenance, the motor is difficult to take out of the shell, various tools need to be contacted, and the motor is easy to damage.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide an electric toothbrush motor transmission, it can realize guaranteeing when the casing leakproofness is good, holistic equipment work is also simple more convenient, the subsequent maintenance work of being convenient for.

2. Technical scheme

In order to solve the problem, the utility model adopts the following technical proposal.

The utility model provides an electric toothbrush motor transmission, includes casing and top cap, the top cap is installed the top of casing, be provided with the motor in the casing, the top of motor is provided with the output pole, be provided with in the casing and be located the dry piece of motor top, the top of dry piece is provided with sealed the pad, the top of sealed pad is provided with the cotton that absorbs water, the output pole with be provided with sealed rubber ring between the inner wall of top cap, still be provided with in the casing with the locating component that the motor cooperation was used.

Furthermore, the positioning assembly comprises four positioning plates and four extrusion plates arranged at the bottom of the top cover, the inner sides of the four positioning plates are in close contact with the surface of the motor, the inner sides of the four extrusion plates are respectively in close contact with the surfaces of the four positioning plates, and the outer sides of the four extrusion plates are in close contact with the inner wall of the shell.

Furthermore, the bottom of top cap fixed mounting has the sealing ring, the lower extreme of sealing ring is pegged graft in the inner wall of casing.

Furthermore, T-shaped blocks are installed at the tops of the four outer sides of the positioning plates, one ends, far away from the positioning plates, of the T-shaped blocks are connected in the inner wall of the shell in an inserting mode, and T-shaped grooves matched with the T-shaped blocks are formed in the inner wall of the shell.

Furthermore, one side, close to the motor, of the top end of the positioning plate is set to be an arc-shaped surface, and one side, close to the positioning plate, of the bottom end of the extrusion plate is set to be an arc-shaped surface.

Further, the length of the T-shaped groove is smaller than the interval between the positioning plate and the inner wall of the shell.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

this scheme can guarantee the inside leakproofness of casing through setting up dry piece, sealed the pad, the cotton and sealed rubber ring that absorb water, makes the casing inside keep dry, can be more convenient just can pack the motor into the casing when the equipment through setting up locating component in, and can play better location effect to the motor.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is a top cross-sectional view of the present invention;

FIG. 4 is a partial schematic structural view of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 2 according to the present invention.

The numbering in the figures illustrates:

1. a housing; 2. a top cover; 3. a motor; 4. an output rod; 5. drying the blocks; 6. a gasket; 7. absorbent cotton; 8. sealing the rubber ring; 9. positioning a plate; 10. a pressing plate; 11. a seal ring; 12. a T-shaped block; 13. T-shaped grooves.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Example 1:

referring to fig. 1-5, a motor transmission device for an electric toothbrush comprises a housing 1 and a top cover 2, wherein the top cover 2 is installed on the top of the housing 1, a motor 3 is arranged in the housing 1, an output rod 4 is arranged on the top of the motor 3, a drying block 5 arranged above the motor 3 is arranged in the housing 1, a sealing gasket 6 is arranged above the drying block 5, absorbent cotton 7 is arranged above the sealing gasket 6, a sealing rubber ring 8 is arranged between the output rod 4 and the inner wall of the top cover 2, a positioning assembly used in cooperation with the motor 3 is further arranged in the housing 1, top cap 2 then can not play the positioning action for the installation locating component when the equipment, and motor 3 then can be relaxed puts into casing 1, with dry piece 5, sealed 6 and the cotton 7 that absorbs water casing 1 of packing into in proper order again afterwards, installs top cap 2 at last, makes locating component fix a position motor 3, and it is more convenient to compare the equipment of prior art this scheme.

Referring to fig. 3 and 4, the positioning assembly includes four positioning plates 9 and four pressing plates 10 installed at the bottom of the top cover 2, the inner sides of the four positioning plates 9 are all in close contact with the surface of the motor 3, the inner sides of the four pressing plates 10 are respectively in close contact with the surfaces of the four positioning plates 9, the outer sides of the four pressing plates 10 are in close contact with the inner wall of the housing 1, the positioning plates 9 can be pressed when the motor 3 is installed in the housing 1, so that the positioning plates 9 move to the outside, and after the top cover 2 is installed on the housing 1, the pressing plates 10 can press the positioning plates 9 to enable the positioning plates 9 to be attached to the motor 3 for positioning.

Referring to fig. 2 and 3, the bottom of the top cover 2 is fixedly provided with a sealing ring 11, the lower end of the sealing ring 11 is inserted into the inner wall of the housing 1, and the sealing ring 11 is arranged to ensure the sealing performance between the housing 1 and the top cover 2, so that the overall sealing effect is further improved.

Referring to fig. 5, T-shaped blocks 12 are installed at the tops of the outer sides of the four positioning plates 9, one ends, far away from the positioning plates 9, of the T-shaped blocks 12 are inserted into the inner wall of the housing 1, the inner wall of the housing 1 is provided with T-shaped grooves 13 matched with the T-shaped blocks 12, the T-shaped blocks 12 can limit the moving distance of the positioning plates 9, and the motor 3 can move through the easily extruded positioning plates 9 at the edges of the motor.

Referring to fig. 4, one side of the top end of the positioning plate 9 close to the motor 3 is set as an arc-shaped surface, one side of the bottom end of the extrusion plate 10 close to the positioning plate 9 is set as an arc-shaped surface, the motor 3 can extrude more smoothly when the arc-shaped surface on the positioning plate 9, and the arc-shaped surface of the extrusion plate 10 enables the extrusion positioning plate 9 to move more easily.

Referring to fig. 5, the length of the T-shaped groove 13 is smaller than the interval between the positioning plate 9 and the inner wall of the housing 1, so that a certain distance is always reserved between the positioning plate 9 and the inner wall of the housing 1, and the pressing plate 10 can be conveniently inserted between the positioning plate 9 and the housing 1.

The working principle is as follows: the user packs motor 3 into casing 1 when the equipment, locating plate 9 does not receive the restriction this moment, the arcwall face of motor 3 accessible bottom extrusion locating plate 9, make locating plate 9 expand to the outside, can be easily pack into motor 3, again in proper order dry block 5 afterwards, sealed pad 6 and cotton 7 that absorbs water pack into in the casing 1, install top cap 2 at casing 1's top at last, thereby the extrusion stem of its bottom can the outside extrusion locating plate 9 of locating plate 9 when top cap 2 is installed, make locating plate 9 contract to the inboard and press close to motor 3 surface, can realize the location to motor 3, simultaneously in sealing ring 11 of top cap 2 bottom also can insert casing 1's inner wall, it can with top cap 2 and casing 1 fixed to use the screw at last, the inside leakproofness of casing 1 has been guaranteed to this scheme, and have stronger continuity when the equipment, it is more convenient to assemble.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. An electric toothbrush motor transmission, includes casing (1) and top cap (2), its characterized in that: top cap (2) are installed the top of casing (1), be provided with motor (3) in casing (1), the top of motor (3) is provided with output rod (4), be provided with in casing (1) and be located dry piece (5) of motor (3) top, the top of dry piece (5) is provided with sealed the pad (6), the top of sealed pad (6) is provided with cotton (7) that absorb water, output rod (4) with be provided with between the inner wall of top cap (2) sealed rubber ring (8), still be provided with in casing (1) with locating component that motor (3) cooperation was used.

2. The electric toothbrush motor transmission of claim 1, wherein: the locating component comprises four locating plates (9) and four extrusion plates (10) arranged at the bottom of the top cover (2), the inner sides of the locating plates (9) are all in close contact with the surface of the motor (3), the inner sides of the extrusion plates (10) are respectively in close contact with the surface of the locating plates (9), and the outer sides of the extrusion plates (10) are in close contact with the inner wall of the shell (1).

3. The electric toothbrush motor transmission of claim 1, wherein: the bottom of top cap (2) is fixed with sealing ring (11), the lower extreme of sealing ring (11) is pegged graft in the inner wall of casing (1).

4. The electric toothbrush motor transmission of claim 2, wherein: t-shaped blocks (12) are installed at the tops of the outer sides of the four positioning plates (9), one ends, far away from the positioning plates (9), of the T-shaped blocks (12) are inserted into the inner wall of the shell (1), and T-shaped grooves (13) matched with the T-shaped blocks (12) in use are formed in the inner wall of the shell (1).

5. The electric toothbrush motor transmission of claim 2, wherein: one side of the top end of the positioning plate (9) close to the motor (3) is set to be an arc-shaped surface, and one side of the bottom end of the extrusion plate (10) close to the positioning plate (9) is set to be an arc-shaped surface.

6. The electric toothbrush motor transmission of claim 4, wherein: the length of the T-shaped groove (13) is smaller than the interval between the positioning plate (9) and the inner wall of the shell (1).