Electric toothbrush handle with good waterproofness

Abstract

The electric toothbrush handle comprises a front shell, a rear shell, a top plate and a bottom cover, the section of the front shell is in a U shape, the section of the rear shell is in an inverted U shape, an opening of the front shell is opposite to an opening of the rear shell, the top plate is fixedly installed on the upper surface of the front shell, and the bottom cover is fixedly installed on the upper surface of the rear shell. The side part, close to the front shell, of the top plate is flush with the surface of the front shell. Inner side plates are arranged on the two rectangular side faces of the front shell, and outer side plates are arranged on the two rectangular side faces of the rear shell. The first batten is just located in the second clamping groove, the second batten is just located in the first clamping groove, the sealing gasket is attached between the second batten and the first batten, the sealing performance can be enhanced, through staggered distribution of the first batten and the second batten, a gap existing between the front shell and the rear shell after the front shell and the rear shell are installed can be blocked in a multiple mode, and the sealing performance is improved. And external steam can be effectively prevented from entering the front shell and the rear shell.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to an electric toothbrush handle with good waterproof performance. Background Technique

[0002] An electric toothbrush makes the brush head vibrate through the rapid rotation or vibration of the motor core, instantly decomposes toothpaste into fine foam, and deeply cleans the牙缝. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and has a massage effect on the gingival tissue; the main structure of an electric toothbrush is a handle and a brush head, and the brush head is connected to the handle by plugging and unplugging. When the brush head is worn out, it is convenient to replace it with a new one; most of the existing handles are shell structures, and the circuit board is installed in the shell structure of the handle. Most of the handles are assembled from a front shell and a rear shell, and the assembled splicing seam is located at the central position of the handle, and the splicing seam is in contact with the circuit board inside the handle. Moisture in the air passes through the splicing seam and will directly contact the internal circuit board, and the sealing performance of the splicing seam is poor.

[0003] In view of the above problems, the present utility model is proposed. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide an electric toothbrush handle with good waterproof performance to solve the problems mentioned in the background technique.

[0005] To solve the above technical problems, the present utility model provides the following technical solutions.

[0006] The present utility model provides an electric toothbrush handle with good waterproof performance, including a front shell, a rear shell, a top plate and a bottom cover. The cross-section of the front shell is in an inverted "C" shape, the cross-section of the rear shell is in a "C" shape, the openings of the front shell and the rear shell face each other, the top plate is fixedly installed on the upper surface of the front shell, and the side part of the top plate close to the front shell is flush with the surface of the front shell;

[0007] Inner side plates are provided on two rectangular sides of the front shell, outer side plates are provided on two rectangular sides of the rear shell. Three first strip plates are equidistantly arranged on the outer surface of the inner side plate along the length direction of the inner side plate, and there is a spacing between two adjacent first strip plates to form a first card slot. Two second strip plates are equidistantly arranged on the inner surface of the outer side plate along the length direction of the outer side plate. There are spacings between adjacent second strip plates, between the second strip plate and the rectangular surface of the rear shell, and between the second strip plate and the edge of the outer side plate to form a second card slot;

[0008] When the rear shell and the front shell are connected to each other, the first strip plate is located in the second card slot, and the second strip plate is located in the first card slot;

[0009] Sealing pads are arranged on both sides of the second strip, and the sealing pads are in contact with the inner wall of the first slot.

[0010] Preferably, a plurality of third slots are provided on a side of the lower surface of the top plate away from the front shell, and a plurality of protrusions are provided on the upper surface of the rear shell, and the protrusions are matched with the third slots.

[0011] Preferably, the shape and size of the horizontal cross-section of the bottom cover are consistent with the overall outer contour of the bottom of the front shell and the rear shell, and a bottom cover plug is provided in the center of the upper surface of the bottom cover, and the shape and size of the horizontal cross-section of the bottom cover plug are consistent with the overall inner surface contour of the bottom of the front shell and the rear shell.

[0012] Preferably, a through hole penetrating the top plate is provided in the center of the upper surface of the top plate.

[0013] Preferably, the front shell, the rear shell, the inner side plate, the outer side plate, the first strip plate, the second strip plate, the first slot, the second slot and the sealing gasket are all of the same height.

[0014] Preferably, the bumps are evenly distributed at equal intervals along the upper surface of the rear shell.

[0015] Preferably, the wall thickness of the front shell and the rear shell are consistent, and the thickness of the inner side plate and the outer side plate are both half of the thickness of the front shell.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] When installing the rear shell, slide the rear shell slowly upward from the bottom of the front shell to install it. At this time, the first plate is just located in the second slot, and the second plate is just located in the first slot. The sealing gasket fits between the second plate and the first plate, which can enhance the sealing performance. Through the staggered distribution of the first plate and the second plate, the gap between the front shell and the rear shell after installation can be blocked multiple times, which can effectively prevent external moisture from entering the interior of the front shell and the rear shell; through the clamping connection between the protrusion and the third slot, the sealing performance of the connection position between the rear shell and the top plate is also better, and the overall sealing performance of the front shell and the rear shell is strong, which can prevent residual moisture on the toothbrush handle shell from entering the shell during daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view of the front shell of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the front shell of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the rear shell of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the top plate of the utility model;

[0022] Figure 5 This is a three-dimensional view of the bump of the present utility model.

[0023] In the figure: 1. Front shell; 11. Inner side plate; 12. First strip; 13. First card slot; 2. Rear shell; 21. Outer side plate; 22. Second strip; 23. Second card slot; 24. Sealing gasket; 25. Bump; 3. Top plate; 31. Through hole; 32. Third card slot; 4. Bottom cover; 41. Bottom cover plug. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] As Figure 1-5 shown, an electric toothbrush handle with good waterproof performance includes a front shell 1, a rear shell 2, a top plate 3 and a bottom cover 4. The cross-section of the front shell 1 is in an "L" shape, and the cross-section of the rear shell 2 is in an inverted "L" shape. The openings of the front shell 1 and the rear shell 2 face each other, that is, the front shell 1 and the rear shell 2 can be spliced as a whole. The top plate 3 is fixedly installed on the upper surface of the front shell 1, and the side part of the top plate 3 close to the front shell 1 is flush with the surface of the front shell 1;

[0027] Inner side plates 11 are provided on two rectangular sides of the front shell 1, outer side plates 21 are provided on two rectangular sides of the rear shell 2. Three first strips 12 are equidistantly arranged on the outer surface of the inner side plate 11 along the length direction of the inner side plate 11. There is a spacing between two adjacent first strips 12 to form a first card slot 13. Two second strips 22 are equidistantly arranged on the inner surface of the outer side plate 21 along the length direction of the outer side plate 21. There are spacings between adjacent second strips 22, between the second strip 22 and the rectangular surface of the rear shell 2, and between the second strip 22 and the edge of the outer side plate 21 to form a second card slot 23;

[0028] When the rear shell 2 and the front shell 1 are connected to each other, the first strip 12 is located in the second slot 23, and the second strip 22 is located in the first slot 13. The first strip 12 slides in the second slot 23, and the second strip 22 slides in the first slot 13, so that the rear shell 2 and the front shell 1 are detachably connected.

[0029] Sealing gaskets 24 are provided on both sides of the second strip 22 . The sealing gaskets 24 fit the inner wall of the first slot 13 , that is, the sealing gaskets 24 fit the side of the first strip 12 . The sealing gaskets 24 can enhance the sealing performance of the connection between the first strip 12 and the second strip 22 .

[0030] A plurality of third slots 32 are provided on the lower surface of the top plate 3 away from the front shell 1 , and a plurality of protrusions 25 are provided on the upper surface of the rear shell 2 . The protrusions 25 are adapted to the third slots 32 . When the rear shell 2 is installed on the front shell 1 , the protrusions 25 just enter the third slots 32 .

[0031] The shape and size of the horizontal cross-section of the bottom cover 4 are consistent with the overall outer contour of the bottom of the front shell 1 and the rear shell 2. A bottom cover plug 41 is provided in the center of the upper surface of the bottom cover 4. The shape and size of the horizontal cross-section of the bottom cover plug 41 are consistent with the overall inner surface contour of the bottom of the front shell 1 and the rear shell 2. After the front shell 1 and the rear shell 2 are installed, the bottom cover 4 can be installed at the bottom of the shell. The bottom cover plug 41 is made of rubber and has good sealing properties.

[0032] A through hole 31 penetrating the top plate 3 is provided at the center of the upper surface of the top plate 3 , and the through hole 31 is convenient for inserting a toothbrush head.

[0033] The front shell 1 , the rear shell 2 , the inner side plate 11 , the outer side plate 21 , the first strip plate 12 , the second strip plate 22 , the first slot 13 , the second slot 23 and the sealing gasket 24 are all of the same height.

[0034] The bumps 25 are evenly distributed along the upper surface of the rear housing 2 at equal intervals.

[0035] The wall thickness of the front shell 1 and the rear shell 2 is consistent, and the thickness of the inner side plate 11 and the outer side plate 21 are both half of the thickness of the front shell 1 .

[0036] In summary: when installing the rear shell 2, the rear shell 2 is slowly slid upward from the bottom of the front shell 1 to be installed. At this time, the first strip 12 is just located in the second slot 23, and the second strip 22 is just located in the first slot 13. The sealing gasket 24 is attached between the second strip 22 and the first strip 12, which can enhance the sealing performance. Through the staggered distribution of the first strip 12 and the second strip 22, the gap between the front shell 1 and the rear shell 2 after installation can be multi-blocked, which can effectively prevent external water vapor and water droplets from entering the interior of the front shell 1 and the rear shell 2;

[0037] Through the clamping connection between the protrusion 25 and the third clamping groove 32, the sealing of the connection position between the rear shell 2 and the top plate 3 is also good, and the overall sealing of the front shell 1 and the rear shell 2 is strong, which can prevent the residual moisture on the toothbrush handle shell from entering the shell during daily use.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof electric toothbrush handle, characterized in that: It includes a front shell (1), a rear shell (2), a top plate (3) and a bottom cover (4). The cross-section of the front shell (1) is in an "L" shape, the cross-section of the rear shell (2) is in an inverted "L" shape, the openings of the front shell (1) and the rear shell (2) face each other, the top plate (3) is fixedly installed on the upper surface of the front shell (1), and the side part of the top plate (3) close to the front shell (1) is flush with the surface of the front shell (1). Inner side plates (11) are provided on two rectangular sides of the front shell (1), outer side plates (21) are provided on two rectangular sides of the rear shell (2). Three first strip plates (12) are arranged at equal intervals along the length direction of the outer surface of the inner side plate (11). There is a spacing between two adjacent first strip plates (12) to form a first card slot (13). Two second strip plates (22) are arranged at equal intervals along the length direction of the inner surface of the outer side plate (21). There are spacings between two adjacent second strip plates (22), between the second strip plate (22) and the rectangular surface of the rear shell (2), and between the second strip plate (22) and the edge of the outer side plate (21) to form a second card slot (23). When the rear shell (2) and the front shell (1) are connected to each other, the first strip plate (12) is located in the second card slot (23), and the second strip plate (22) is located in the first card slot (13). Sealing gaskets (24) are provided on both sides of the second strip plate (22), and the sealing gaskets (24) are attached to the inner wall of the first card slot (13).

2. The waterproof electric toothbrush handle according to claim 1, characterized in that: A plurality of third card slots (32) are provided on the lower surface of the top plate (3) on the side away from the front shell (1). A plurality of bumps (25) are provided on the upper surface of the rear shell (2), and the bumps (25) are adapted to the third card slots (32).

3. The waterproof electric toothbrush handle according to claim 1, characterized in that: The shape and size of the horizontal cross-section of the bottom cover (4) are consistent with the overall outer peripheral contour of the bottom of the front shell (1) and the rear shell (2). A bottom cover plug (41) is provided at the center of the upper surface of the bottom cover (4), and the shape and size of the horizontal cross-section of the bottom cover plug (41) are consistent with the overall inner surface contour of the bottom of the front shell (1) and the rear shell (2).

4. The waterproof electric toothbrush handle according to claim 1, characterized in that: A through hole (31) penetrating the top plate (3) is provided at the center of the upper surface of the top plate (3).

5. The waterproof electric toothbrush handle according to claim 1, characterized in that: The heights of the front shell (1), the rear shell (2), the inner side plate (11), the outer side plate (21), the first strip plate (12), the second strip plate (22), the first card slot (13), the second card slot (23) and the sealing gasket (24) are all the same.

6. The waterproof electric toothbrush handle according to claim 2, characterized in that: The bumps (25) are evenly distributed at equal intervals along the upper surface of the rear shell (2).

7. The waterproof electric toothbrush handle according to claim 1, characterized in that: The wall thicknesses of the front shell (1) and the rear shell (2) are the same, and the thicknesses of the inner side plate (11) and the outer side plate (21) are both half of the thickness of the front shell (1).

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