Waterproof touch switch

Abstract

The utility model belongs to the technical field of touch switches, and particularly relates to a waterproof touch switch, which comprises a base and a cover plate, a movable plate is slidably arranged in the cover plate, a press button is fixedly arranged at the top end of the movable plate and slidably penetrates through a through hole, a lower press block is fixedly arranged at the center of the bottom end of the movable plate, and the lower press block penetrates through the through hole. A cavity is formed in the top end of the base, a waterproof film is fixedly arranged at the position, located at the top end of the cavity, of the base, the cavity is sealed through the waterproof film, a waterproof gasket is fixedly arranged on the inner wall of the cavity and located over the waterproof film, and a plurality of arc-shaped positioning grooves are formed in the four edges of the bottom end of the waterproof gasket. Arc-shaped positioning strips matched with the arc-shaped positioning grooves are fixedly arranged on the four edges of the top end of the waterproof film, through cooperation of the arc-shaped positioning grooves and the arc-shaped positioning strips, the waterproof film is rapidly recovered after deformation, the waterproof performance is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of light touch switches, in particular to a waterproof light touch switch. Background Art

[0002] A touch switch is a mechanical switch installed on a circuit board. It can instantly open and close the circuit by pressing a button. It has a sharp touch and a simple structure. It is widely used in home, commercial, medical and transportation fields. The waterproof touch switch not only has the advantages of an ordinary touch switch, but also has a waterproof function, which enables it to adapt to more complex and harsh environmental conditions and meet users' needs for waterproof performance of the equipment.

[0003] The existing waterproof touch switch is composed of: button, shell, contact, pot piece, base, waterproof membrane, etc. The working principle is: the waterproof membrane seals the contact area to prevent water vapor from entering. When the button is pressed, the pot piece is pressed down, the contacts are in contact, and the circuit is turned on; when the button is released, the pot piece rebounds, the contacts are separated, and the circuit is cut off. In this way, the touch switch can realize the opening and closing control of the circuit.

[0004] At present, the waterproof touch switch in the prior art has the following disadvantages: if the waterproof film is too thin, it is difficult to recover after being deformed by pressing the button, which affects the waterproof effect after being used for a long time; if the waterproof film is too thick, although it is easy to recover after being deformed by pressing the button, its edge is easy to warp up when deformed, and the warped gap becomes larger after being used for a long time, which is easy to leak water and affects the waterproof effect; therefore, a waterproof touch switch is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing waterproof touch switch, a waterproof touch switch is proposed to solve the problem that the waterproof film is too thin and it is difficult to recover after being deformed by pressing a button, which affects the waterproof effect after the use time is increased, and the waterproof film is too thick and it is easy to recover after being deformed by pressing a button, but its edge is easy to warp up when deformed, and the warping gap becomes larger after the use time is increased, which easily leaks water and affects the waterproof effect.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a waterproof touch switch described in the utility model comprises a base, rivets are fixedly arranged at the four corners of the top end of the base, a cover plate is arranged at the top end of the base, fixing holes matching the rivets are opened at the four corners of the top end of the cover plate, a through hole is opened at the center of the top end of the cover plate, a movable plate is slidably arranged inside the cover plate, a pressing button is fixedly arranged at the top end of the movable plate, the pressing button slides through the through hole, a pressing block is fixedly arranged at the center of the bottom end of the movable plate, a cavity is opened at the top end of the base, a waterproof membrane is fixedly arranged at the top end of the base located in the cavity, the waterproof membrane seals the cavity, a waterproof gasket is fixedly arranged on the inner wall of the cavity, the waterproof gasket is arranged directly above the waterproof membrane, and the waterproof effect and service life are improved through the cooperation of the waterproof membrane and the waterproof gasket.

[0007] Preferably, a plurality of arc-shaped positioning grooves are provided on the four sides of the bottom end of the waterproof gasket, and arc-shaped positioning strips cooperating with the arc-shaped positioning grooves are fixedly provided on the four sides of the top end of the waterproof membrane. Through the cooperation between the arc-shaped positioning grooves and the arc-shaped positioning strips, the waterproof membrane can quickly recover after deformation.

[0008] Preferably, a movable groove is opened on the inner wall of the cover plate, a guide block is fixedly arranged on the movable plate, and a spring is fixedly arranged between the guide block and the inner wall of the movable groove. Through the cooperation of the spring and the guide block, the movable plate can be assisted to drive the push button to rebound and reset.

[0009] Preferably, the thickness of the waterproof membrane is one quarter of the thickness of the waterproof gasket, and the waterproof performance is improved by the cooperation between the waterproof membrane and the waterproof gasket.

[0010] Preferably, a first wiring piece and a second wiring piece are fixedly provided on the base, a first contact is fixedly provided in the cavity, the first wiring piece is welded to the first contact, a second contact is fixedly provided in the cavity, the second contact is welded to the second wiring piece, a spring is fixedly welded to the top of the first contact, and through the cooperation between the above devices, the touch switch can open and close the circuit normally.

[0011] Preferably, the central axes of the spring sheet, the second contact, the pressing block, the movable plate and the pressing button are consistent. The quality of the touch switch is improved by the consistency of the central axes of the above structures.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a waterproof light touch switch. When the waterproof light touch switch is used, the user presses the pressing button to make the movable plate and the pressing block move downward, firstly press the waterproof gasket downward, and then press the waterproof membrane downward, and the two are deformed at the same time. The bottom end of the waterproof membrane contacts the spring sheet, and the spring sheet is pressed downward to make the spring sheet contact the second contact point, so that the circuit is turned on. While the center of the waterproof gasket is concave, its edge is tilted to drive the arc-shaped positioning groove to move, so that the arc-shaped positioning strip leaves the arc-shaped positioning groove, and the deformation of the waterproof membrane is not hindered. When the user no longer presses the pressing button, the spring sheet rebounds, the circuit is disconnected, and the waterproof gasket restores to a flat state at the same time, and drives the arc-shaped positioning groove to move toward the arc-shaped positioning strip and is sleeved on the arc-shaped positioning strip, and drives the waterproof membrane to restore to a flat state together, thereby improving the waterproof effect and also improving the service life of the waterproof light touch switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is a three-dimensional picture of the whole;

[0016] Figure 2 It is a three-dimensional diagram of the overall explosion structure;

[0017] Figure 3 is a structural cross-sectional view of embodiment 1;

[0018] Figure 4 is a structural cross-sectional view of the second embodiment;

[0019] Figure 5 It is a three-dimensional diagram of the structure of the waterproof membrane and the waterproof gasket;

[0020] Figure 6 yes Figure 4 A magnified view of the structure at center A;

[0021] Legend:

[0022] 1. Base; 01. Cavity; 2. Rivet; 3. Cover plate; 03. Movable slot; 4. Fixing hole; 5. Through hole; 6. Moving plate; 7. Press button; 8. Pressing block; 9. Waterproof membrane; 901. Arc-shaped positioning strip; 10. Waterproof gasket; 101. Arc-shaped positioning slot; 11. Spring; 12. Guide block; 13. First wiring piece; 14. Second wiring piece; 15. First contact; 16. Second contact; 17. Shrapnel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Specific examples are given below.

[0025] See also Figure 1-Figure 6 The utility model discloses a waterproof touch switch, comprising a base 1, wherein the four corners of the top of the base 1 are fixedly provided with rivets 2, a cover plate 3 is provided at the top of the base 1, and the four corners of the top of the cover plate 3 are provided with fixing holes 4 matched with the rivets 2, a through hole 5 is provided at the top center of the cover plate 3, a moving plate 6 is slidably provided inside the cover plate 3, a pressing button 7 is fixedly provided at the top of the moving plate 6, and the pressing button 7 slides through the through hole 5, a pressing block 8 is fixedly provided at the bottom center of the moving plate 6, and the base 1 A cavity 01 is provided at the top of the base 1, a waterproof membrane 9 is fixedly provided at the top of the cavity 01 of the base 1, the waterproof membrane 9 seals the cavity 01, a waterproof gasket 10 is fixedly provided on the inner wall of the cavity 01, the waterproof gasket 10 is arranged directly above the waterproof membrane 9, the thickness of the waterproof membrane 9 is one quarter of the thickness of the waterproof gasket 10, a plurality of arc-shaped positioning grooves 101 are provided at the four sides of the bottom end of the waterproof gasket 10, and arc-shaped positioning strips 901 cooperating with the arc-shaped positioning grooves 101 are fixedly provided at the four sides of the top of the waterproof membrane 9,

[0026] A first terminal piece 13 and a second terminal piece 14 are fixedly provided on the base 1, a first contact 15 is fixedly provided in the cavity 01, the first terminal piece 13 and the first contact 15 are welded and connected, a second contact 16 is fixedly provided in the cavity 01, the second contact 16 and the second terminal piece 14 are welded and connected, a spring piece 17 is fixedly welded and connected to the top of the first contact 15, the spring piece 17, the second contact 16, the pressing block 8, the movable plate 6 and the pressing button 7 have the same central axis, during operation, in order to prevent the waterproof membrane 9 from being too thin and being difficult to recover after being deformed by pressing the pressing button 7, and affecting the waterproof effect after the use time increases, and the waterproof gasket 10 is too thick and is easy to recover after being deformed by pressing the pressing button 7, but its edge is easy to warp up when deformed, and the warping gap becomes larger after the use time increases, it is easy to seep water, affecting the waterproof effect, firstly, when using the waterproof touch switch When closing, the user presses the push button 7 to move the movable plate 6 and the pressing block 8 downward, first pressing the waterproof gasket 10, and then pressing the waterproof membrane 9, both of which are deformed at the same time, and then the bottom end of the waterproof membrane 9 contacts the spring sheet 17, and the spring sheet 17 is pressed down to contact the second contact 16, so that the circuit is turned on, and the center of the waterproof gasket 10 is concave while its edge is tilted to drive the arc-shaped positioning groove 101 to move, so that the arc-shaped positioning strip 901 leaves the arc-shaped positioning groove 101, and does not hinder the deformation of the waterproof membrane 9. When the user no longer presses the push button 7, the spring sheet 17 rebounds, the circuit is disconnected, and the waterproof gasket 10 returns to a flat state at the same time, and drives the arc-shaped positioning groove 101 to move toward the arc-shaped positioning strip 901 and sleeve on the arc-shaped positioning strip 901, and drives the waterproof membrane 9 to return to a flat state together, thereby improving the waterproof effect and the service life of the waterproof touch switch.

[0027] Furthermore, a movable groove 03 is provided on the inner wall of the cover plate 3, and a guide block 12 is fixedly provided on the movable plate 6. According to the size and specification of the push button 7, the movable plate 6, the pressing block 8 and the touch switch, there are two embodiments, as follows:

[0028] Embodiment 1: When the push button 7, the movable plate 6, the pressing block 8 and the touch switch are of miniature specifications, the guide block 12 and the movable groove 03 are used together to guide and limit the movement of the push button 7, the movable plate 6 and the pressing block 8 to prevent them from shifting. A waterproof gasket 10 with strong elasticity can be directly used to reset the push button 7 by utilizing the elastic force of the waterproof gasket 10.

[0029] Embodiment 2: When the push button 7, the movable plate 6, the pressing block 8 and the touch switch are of small and large specifications, a spring 11 is fixedly arranged between the guide block 12 and the inner wall of the movable groove 03. When the push button 7 is pressed down, the guide block 12 compresses the spring 11. After the push button 7 is released, the reaction force of the spring 11 assists the reset of the push button 7.

[0030] Working principle: In order to prevent the waterproof membrane 9 from being too thin and being difficult to recover after being deformed by pressing the button 7, and affecting the waterproof effect after the use time increases, and the waterproof gasket 10 is too thick and is easy to recover after being deformed by pressing the button 7, but its edge is easy to warp up when deformed, and the warping gap becomes larger after the use time increases, it is easy to leak water, affecting the waterproof effect, first when using the waterproof touch switch, the user presses the button 7 to move the moving plate 6 and the pressing block 8 downward, first presses the waterproof gasket 10, and then presses the waterproof membrane 9, the two are deformed at the same time, and then the bottom end of the waterproof membrane 9 contacts the spring 17, and the spring 17 is pressed down to make the spring The sheet 17 contacts the second contact 16, and the circuit is turned on. The center of the waterproof gasket 10 is concave, and its edge is tilted to drive the arc-shaped positioning groove 101 to move, so that the arc-shaped positioning strip 901 leaves the arc-shaped positioning groove 101, and does not hinder the deformation of the waterproof membrane 9. When the user no longer presses the push button 7, the spring sheet 17 rebounds, and the circuit is disconnected. At the same time, the waterproof gasket 10 returns to a flat state, and drives the arc-shaped positioning groove 101 to move toward the arc-shaped positioning strip 901 and sleeve on the arc-shaped positioning strip 901, and drives the waterproof membrane 9 to return to a flat state together, thereby improving the waterproof effect and the service life of the waterproof touch switch.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A waterproof touch switch, characterized in that: The invention comprises a base (1), wherein rivets (2) are fixedly arranged at the four corners of the top of the base (1), a cover plate (3) is arranged at the top of the base (1), fixing holes (4) matching with the rivets (2) are arranged at the four corners of the top of the cover plate (3), a through hole (5) is arranged at the center of the top of the cover plate (3), a movable plate (6) is slidably arranged inside the cover plate (3), a pressing button (7) is fixedly arranged at the top of the movable plate (6), and the pressing button (7) is ) is slidably penetrated through the through hole (5), a lower pressing block (8) is fixedly arranged at the center of the bottom end of the movable plate (6), a cavity (01) is opened at the top of the base (1), a waterproof membrane (9) is fixedly arranged at the top of the base (1) located in the cavity (01), the waterproof membrane (9) seals the cavity (01), a waterproof gasket (10) is fixedly arranged on the inner wall of the cavity (01), and the waterproof gasket (10) is arranged directly above the waterproof membrane (9).

2. A waterproof touch switch according to claim 1, characterized in that: A plurality of arc-shaped positioning grooves (101) are provided at four sides of the bottom end of the waterproof gasket (10), and arc-shaped positioning strips (901) cooperating with the arc-shaped positioning grooves (101) are fixedly provided at four sides of the top end of the waterproof membrane (9).

3. A waterproof touch switch according to claim 1, characterized in that: A movable groove (03) is provided on the inner wall of the cover plate (3), a guide block (12) is fixedly provided on the movable plate (6), and a spring (11) is fixedly provided between the guide block (12) and the inner wall of the movable groove (03).

4. A waterproof touch switch according to claim 1, characterized in that: The thickness of the waterproof membrane (9) is one quarter of the thickness of the waterproof gasket (10).

5. The waterproof touch switch according to claim 1, characterized in that: A first terminal piece (13) and a second terminal piece (14) are fixedly arranged on the base (1); a first contact (15) is fixedly arranged in the cavity (01); the first terminal piece (13) and the first contact (15) are welded together; a second contact (16) is fixedly arranged in the cavity (01); the second contact (16) and the second terminal piece (14) are welded together; and a spring piece (17) is fixedly welded to the top of the first contact (15).

6. A waterproof touch switch according to claim 5, characterized in that: The central axes of the spring sheet (17), the second contact point (16), the lower pressing block (8), the moving plate (6) and the pressing button (7) are consistent.

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