Waterproof electric toothbrush

Abstract

The utility model relates to the technical field of electric toothbrushes, in particular to a waterproof electric toothbrush. A waterproof electric toothbrush comprises a handle and a brush head arranged at the end of the handle, the handle comprises a hard rubber shell, a hard rubber lens and a soft rubber button, the hard rubber shell is provided with a screen display mounting hole and a button mounting hole which are through inside and outside, and the hard rubber lens comprises a screen display portion and a panel portion which are made of the same material and integrally formed. The panel part extends in the length direction of the handle, the screen display part is arranged on the panel part in a protruding mode, and the panel part is provided with an installation groove used for installing a soft rubber button; the soft rubber button is formed in the mounting groove in a one-time die-casting mode, and the hard rubber shell and the hard rubber lens are formed in a two-time die-casting mode, so that the panel part and the inner wall of the hard rubber shell are formed in a die-casting mode, and the screen display part and the screen display mounting hole are formed in a die-casting mode. And the soft rubber button is positioned in the button mounting hole. The waterproof LED lamp has the advantage of being higher in waterproof performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric toothbrush technical field especially relates to a waterproof electric toothbrush. BACKGROUND

[0002] The toothbrush shell of the electric toothbrush is provided with a lens screen and a button, so that the user can see the mode of the electric toothbrush. For example, the Chinese patent with the application number 202322737744.9 discloses a toothbrush with a transparent lens and a hard shell and a soft shell, which comprises a hard shell, a transparent lens and a soft shell. The soft shell is provided with a lens opening and a button opening, the transparent lens is sealingly arranged on the lens opening, the button opening is provided with a button, the hard shell is provided with a soft shell opening, and the soft shell is sealingly arranged on the soft shell opening.

[0003] With the improvement of people's living standards, electric toothbrushes are increasingly widely used in people's lives, but such electric appliances that need to be used in contact with water must have good waterproof structure, which relates to the use safety and service life of the product. In the above-mentioned scheme, the sealing arrangement between the button, the transparent lens and the hard shell is usually sealed by gluing. After long-term use, the risk of immersion is high, which can easily cause corrosion of the main board, switch or motor, thereby causing product quality problems. SUMMARY

[0004] To solve the problems in the prior art, an electric toothbrush with higher waterproofness is provided.

[0005] The utility model adopts the following technical scheme to be realized: a waterproof electric toothbrush, comprising a handle and a brush head arranged at the end of the handle, the handle comprises a hard shell, a hard lens and a soft button, the hard shell is provided with an inside-out penetrating screen display mounting hole and a button mounting hole, the hard lens comprises a screen display part and a panel part which are integrally formed by the same material, the panel part extends along the length direction of the handle, the screen display part is protrudingly arranged on the panel part, and the panel part is provided with a mounting groove for mounting the soft button; the soft button is once overmolded in the mounting groove, the hard shell and the hard lens are twice overmolded to make the panel part and the inner wall of the hard shell overmolded, and the screen display part and the screen display mounting hole overmolded; the soft button is located in the button mounting hole.

[0006] The hard-rubber lens of the present scheme is integrally formed with the screen display part and the panel part, so that the whole hard-rubber lens is integrally injection molded, and the waterproof performance is good, and there is no sealing by gluing. At the same time, the soft-rubber button is first formed in the mounting groove in one time, so that the waterproof performance between the mounting groove and the soft-rubber button is good, and the button part of the whole toothbrush will not leak water. Then the hard-rubber shell and the hard-rubber lens are formed in two times, so that the panel part is formed in the inner wall of the hard-rubber shell, and the screen display part is formed in the screen display mounting hole, thereby further ensuring that water will not flow from the hard-rubber lens into the hard-rubber shell, and the waterproof performance is good.

[0007] The material of the hard-rubber lens can be any existing visual hard lens. Therefore, the panel part is also a visual material, although it does not need to be observed by the user, but the integral setting can ensure better waterproof performance.

[0008] The handle is provided with any existing electric toothbrush electric element, such as pcb circuit board, display screen light source, battery, etc.

[0009] As a preferred, the inner wall of the hard-rubber shell is provided with a matching groove opening to the inner side of the handle, and the panel part is formed in the groove wall of the matching groove.

[0010] The inner wall of the hard-rubber shell is provided with a matching groove opening to the inner side of the handle, so that the end face of the panel part can be formed in the groove wall of the matching groove, and the circumferential side wall of the panel part is formed in the groove wall of the matching groove, and the waterproof performance is good. The above-mentioned formed in the groove is the result of the second time formed in the groove of the hard-rubber shell and the hard-rubber lens.

[0011] As a preferred, the part of the panel part in contact with the inner wall of the hard-rubber shell is provided with a plurality of first glue holes penetrating in and out, and the first glue holes are filled with the hard-rubber shell material when the hard-rubber shell and the hard-rubber lens are formed in two times.

[0012] By providing the first glue hole on the panel part, the first glue hole is filled with the hard-rubber shell material when the hard-rubber shell and the hard-rubber lens are formed in two times, so that the cooperation between the two is more closely, and the waterproof performance is better.

[0013] As a preferred, the circumferential inner wall of the mounting groove is provided with a ring-shaped part extending to the radial inner side, and the soft-rubber button is formed with a ring-shaped groove matched with the ring-shaped part after being formed in the mounting groove in one time.

[0014] The cooperation of the ring-shaped part and the ring-shaped groove further makes the waterproof performance between the soft-rubber button and the mounting groove better, and the ring-shaped part extends to the radial inner side, so that when the soft-rubber button is pressed, the pressing force is perpendicular to the ring-shaped part, so that the soft-rubber button is not easy to fall off after a long time of use, and the waterproof performance is still good after a long time of use.

[0015] As preferred, the annular part is provided with a plurality of second glue holes penetrating axially, and the second glue holes are filled with soft glue button material when the soft glue button and the mounting groove are formed by one-time overmolding.

[0016] By filling the second glue holes with soft glue button material when the soft glue button and the mounting groove are formed by one-time overmolding, the contact area when the soft glue button and the mounting groove are overmolded is larger, and the waterproof performance is better.

[0017] As preferred, the handle is provided with a display screen light source corresponding to the inner side of the screen display part, the panel part is provided with a groove opening inwardly corresponding to the inner wall of the screen display part, the groove bottom is provided with a plurality of light source grooves corresponding to the display screen light source, and the light source grooves are all arranged to open inwardly.

[0018] In order to ensure better waterproof performance, the screen display part is arranged on the panel part and is integrally injection molded, which leads to a larger thickness of the screen display part and the panel part, which is not conducive to light transmission. Therefore, the thickness of the screen display part and the panel part is thinned by the groove and the light source groove, so that the screen display part can transmit light better.

[0019] As preferred, the panel part is provided with a connecting part protruding outwardly, and the connecting part is provided with the mounting groove. When the hard glue shell and the hard glue lens are formed by two-time overmolding, the circumferential outer wall of the connecting part and the circumferential inner wall of the button mounting hole are formed by overmolding.

[0020] By arranging the connecting part, water cannot enter the button mounting hole.

[0021] As preferred, the soft glue button comprises a soft glue button body and a press pad, the soft glue button body is formed by one-time overmolding with the mounting groove, and the press pad is detachably arranged with the soft glue button body and located in the button mounting hole.

[0022] The press pad is detachably arranged with the soft glue button body and located in the button mounting hole, so that the press pad can be replaced, and different styles of press pads can be replaced. Meanwhile, the soft glue button body is formed by one-time overmolding with the mounting groove, and the panel part and the hard glue shell are formed by two-time overmolding, and the waterproof performance meets the requirements.

[0023] Compared with the prior art, the utility model has the advantages of better waterproof performance. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the utility model embodiment 1;

[0025] Figure 2 It is Figure 1 It is a structural schematic view after the hard glue shell is removed;

[0026] Figure 3 As Figure 2 Structure diagram of the device without the hard-rubber lens;

[0027] Figure 4 Structure diagram of the device at the position of the hard-rubber lens and the hard-rubber shell;

[0028] Figure 5 As Figure 4 Structure diagram of the device without the hard-rubber lens;

[0029] Figure 6 Structure diagram of the hard-rubber lens;

[0030] Figure 7 As Figure 6 Structure diagram of the device without the soft-rubber button;

[0031] Figure 8 As Figure 6 Back side view of the device;

[0032] Figure 9 Structure diagram of the soft-rubber button;

[0033] Figure 10 Structure diagram of Example 2;

[0034] Figure 11 Structure diagram of the hard-rubber lens of Example 2;

[0035] Figure 12 As Figure 11 Structure diagram of the device without the press pad;

[0036] Figure 13 As Figure 12 Structure diagram of the device without the soft-rubber button body;

[0037] Figure 14 As Figure 11 Back side view of the device;

[0038] Figure 15 Structure diagram of the soft-rubber button.

[0039] Reference numeral: 1, handle; 11, display screen light source; 2, brush head; 3, hard-rubber lens; 31, screen display part; 32, panel part; 33, connecting part; 34, first glue hole; 35, mounting groove; 351, annular part; 352, second glue hole; 4, hard-rubber shell; 41, screen display mounting hole; 42, button mounting hole; 43, matching groove; 5, soft-rubber button; 51, press pad; 52, soft-rubber button body; 6, recess; 61, light source groove; 7, annular groove; 71, filling body. DETAILED DESCRIPTION

[0040] The utility model will be further described below according to the drawings and specific embodiments.

[0041] Embodiment 1

[0042] As Figures 1 to 3 shown, the present embodiment 1 discloses a waterproof electric toothbrush, including a handle 1 and a brush head 2 arranged on the upper end of the handle 1, the handle 1 includes a hard rubber shell 4, a hard rubber lens 3 and a soft rubber button 5; the hard rubber shell 4 constitutes the shell of the entire handle 1, the hard rubber lens 3 is fixedly connected with the hard rubber shell 4 by sleeve forming mode; the soft rubber button 5 is fixedly connected with the hard rubber lens 3 by sleeve forming mode. The handle 1 is provided with electronic components such as pcb circuit board, battery, motor and display screen light source.

[0043] As Figures 1 to 6 shown, the hard rubber shell 4 is provided with a screen display mounting hole 41 and a button mounting hole 42 which are penetrated from inside to outside, and the screen display mounting hole 41 is located on the upper side of the button mounting hole 42. The hard rubber lens 3 is translucent and includes a screen display part 31 and a panel part 32 which are integrally formed by the same hard rubber lens material, and the screen display part 31 is protrusively arranged on the panel part 32. The panel part 32 is also provided with a protrusively arranged connecting part 33 which is located below the screen display part 31.

[0044] As Figures 6 to 9 shown, the connecting part 33 is provided with a mounting groove 35 which is penetrated from inside to outside, and the circumferential inner wall of the mounting groove 35 is provided with a ring-shaped part 351 which extends to the radial inner side, and the ring-shaped part 351 is provided with a plurality of second glue holes 352 which are axially penetrated, and the soft rubber button 5 is once sleeve formed with the mounting groove 35. The soft rubber button 5 is formed with a ring-shaped groove 7 which cooperates with the ring-shaped part 351 after once sleeve forming with the mounting groove 35. The second glue hole 352 is filled with the soft rubber button material when the soft rubber button 5 is once sleeve formed with the mounting groove 35 to form a columnar filling body 71.

[0045] As Figure 1 , Figures 4 to 6 shown, the inner wall of the hard rubber shell 4 is provided with a matching groove 43 which is open to the handle inner side, and the panel part 32 of the hard rubber lens 3 which is once sleeve formed with the soft rubber button 5 is twice sleeve formed with the groove wall of the matching groove 43, and the circumferential side wall and the end face of the panel part 32 are sleeve formed with the groove wall of the matching groove 43. The screen display part 31 of the hard rubber lens 3 is twice sleeve formed with the screen display mounting hole 41. The entire hard rubber lens 3 is twice sleeve formed with the hard rubber shell 4. The part of the panel part 32 which contacts with the inner wall of the hard rubber shell 4 is provided with four first glue holes 34 which are penetrated from inside to outside, and the first glue hole 34 is filled with the hard rubber shell material (not shown in the figure) when the hard rubber shell 4 is twice sleeve formed with the hard rubber lens 3.

[0046] As Figure 3 and Figure 8As shown, the display light source 11 is correspondingly arranged with the display unit 31. The panel part 32 has an inwardly opening groove 6 on the inner wall of the display unit 31. The bottom of the groove 6 has a plurality of light source slots 61 corresponding to the display light source 11, and all the light source slots 61 are arranged to open inward. The groove 6 and the light source slots 61 make the thickness of the hard plastic lens 3 thinner.

[0047] Example 2

[0048] like Figures 10 to 15 As shown, the difference between Embodiment 2 and Embodiment 1 is that the soft rubber button 5 includes a soft rubber button body 52 and a pad 51. The soft rubber button body 52 and the mounting groove 35 are integrally molded. A T-shaped snap-fit ​​element and a T-shaped snap-fit ​​groove are provided between the pad 51 and the soft rubber button body 52, and the two are connected by snap-fit. The pad 51 is located inside the button mounting hole 42, and the pad 51 is not fixedly positioned relative to the button mounting hole 42.

Claims

1. A waterproof electric toothbrush, characterized in that: The device includes a handle and a brush head located at the end of the handle. The handle comprises a hard plastic shell, a hard plastic lens, and a soft plastic button. The hard plastic shell has a through-hole for display mounting and a through-hole for button mounting. The hard plastic lens comprises a display portion and a panel portion, both integrally formed from the same material. The panel portion extends along the length of the handle, and the display portion protrudes from the panel portion. The panel portion has a mounting groove for mounting the soft plastic button. The soft plastic button is integrally molded in the mounting groove. The hard plastic shell and the hard plastic lens are integrally molded, so that the panel portion is integrally molded with the inner wall of the hard plastic shell, and the display portion is integrally molded with the display mounting hole. The soft plastic button is located in the button mounting hole.

2. The waterproof electric toothbrush according to claim 1, characterized in that: The inner wall of the hard plastic shell is provided with a mating groove that opens to the inside of the handle, and the panel part is molded to fit the groove wall.

3. The waterproof electric toothbrush according to claim 1, characterized in that: The portion of the panel that contacts the inner wall of the hard plastic shell is provided with several through-holes. The through-holes are filled with the hard plastic shell material used in the secondary die-casting of the hard plastic shell and the hard plastic lens.

4. The waterproof electric toothbrush according to claim 1, characterized in that: The mounting groove has a ring-shaped portion extending radially inward on its circumferential inner wall. After the soft rubber button and the mounting groove are molded together in one piece, an annular groove that matches the ring-shaped portion is formed.

5. The waterproof electric toothbrush according to claim 4, characterized in that: The annular portion is provided with several axially penetrating second adhesive holes, which are filled with the soft rubber button material used in the one-time molding of the soft rubber button and the mounting groove.

6. The waterproof electric toothbrush according to claim 1, characterized in that: The handle is provided with a display light source on the inner side of the display unit, and the panel is provided with an inwardly opening groove on the inner wall of the display unit. The bottom of the groove is provided with a plurality of light source slots corresponding to the display light source, and all the light source slots are provided with inward opening.

7. The waterproof electric toothbrush according to any one of claims 1 to 6, characterized in that: The panel is provided with an outwardly protruding connecting part, and the connecting part is provided with the mounting groove. When the hard plastic shell and the hard plastic lens are molded together, the circumferential outer wall of the connecting part and the circumferential inner wall of the button mounting hole are molded together.

8. The waterproof electric toothbrush according to any one of claims 1 to 6, characterized in that: The soft rubber button includes a soft rubber button body and a pad. The soft rubber button body and the mounting groove are molded together in one piece. The pad and the soft rubber button body are detachably connected and located inside the button mounting hole.

Images