Separable modular waterproof push button switch

Abstract

The utility model discloses a detachable module type waterproof button switch, including button unit and switch unit, button unit is including shell, button assembly and waterproof ring of being installed on the shell, button assembly includes the key, the driving ring and the movable gear of being installed in the shell from top to bottom order, the first tooth part is formed on the inner wall of shell, and the reset spring is set up the outer periphery of key, and the second tooth part is set up the lower end of key, and the third tooth part that cooperates with the first tooth part and second tooth part is formed on movable gear, and the first tooth part, second tooth part and third tooth part constitute self -locking structure, and the driving ring is installed on the shell through buckle structure and can move up and down relative to the shell. The waterproof button switch structure in the utility model is optimized design, and the structure of button unit is simple, and the performance is stable and reliable, and is favorable for reducing production cost, and has good waterproof performance simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of push button switches, specifically relating to a detachable modular waterproof push button switch. Background Technology

[0002] Push-button switches, as a basic electrical control component, are widely used in various electronic devices, industrial control systems, and household appliances to control the connection and disconnection of circuits. A typical push-button switch on the market consists of two parts: a switch unit and a button unit. The button unit is connected to the switch unit, and in use, pressing the button unit triggers the switch unit, thereby changing the circuit state of the switch unit.

[0003] To meet diverse usage needs, button units typically require a self-locking function. This means that after the button unit is pressed, a self-locking mechanism maintains the switch unit in the on state, allowing it to unlock and reset only when pressed again. Existing button units with self-locking functions generally have complex structures, including multiple components such as the button, moving gear, stationary gear, retaining ring, and push rod. This multi-component design results in a complex button unit structure with a large number of parts, increasing assembly difficulty. Furthermore, production requires the development and manufacture of molds for each component, significantly increasing initial investment and production costs.

[0004] Furthermore, most existing push-button switches are not designed with waterproofing requirements in mind. Most products employ only simple sealing measures, which are insufficient to effectively prevent the intrusion of liquids or dust, limiting their reliability in humid or dusty environments. Utility Model Content

[0005] In response to this, the present invention provides a detachable modular waterproof push button switch, the push button unit of which has a simple structure, stable and reliable performance, and helps to reduce production costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides a detachable modular waterproof push button switch, including a push button unit and a switch unit. The push button unit is detachably mounted on the switch unit. The push button unit includes a housing with a through cavity, a push button assembly mounted on the housing, and a waterproof ring. The waterproof ring is located at the upper end of the housing. The push button assembly includes a button, a moving gear, and a drive ring mounted in the housing in a top-to-bottom order. A first tooth is formed on the inner wall of the housing. A return spring is sleeved around the outer periphery of the button. A second tooth is provided at the lower end of the button. A third tooth is formed on the moving gear to mate with the first and second teeth. The first, second, and third teeth constitute a self-locking structure. The drive ring is limited and mounted on the housing by a snap-fit ​​structure and can move up and down relative to the housing. The switch unit is triggered by the downward movement of the drive ring.

[0008] Preferably, the moving gear does not have the third tooth.

[0009] Preferably, an anti-rotation structure is provided between the drive ring and the outer shell, the anti-rotation structure restricting the circumferential rotation of the drive ring.

[0010] Preferably, the limiting structure includes a first baffle on the side wall of the drive ring and a second baffle on the inner wall of the housing. After the drive ring is installed in the housing, the lower end of the second baffle abuts against the upper end of the third baffle to prevent the drive ring from detaching from the drive ring.

[0011] Preferably, an axially extending strip groove is formed on the side wall of the drive ring below the first baffle, and the second baffle is located within the strip groove.

[0012] Preferably, the switch unit includes a mounting base and a switch module mounted on the lower end of the mounting base. The mounting base has a vertically penetrating mounting cavity and a first fastening position on its side. The switch module has a vertically movable contact frame and an upwardly protruding fastening plate and a second fastening position below the fastening plate on its side. The switch module is connected to the mounting base by fastening the fastening plate and the first fastening position.

[0013] A slot is provided on the lower side wall of the outer shell, and a clip is installed on the mounting base. The lower end of the outer shell is inserted into the mounting cavity and engaged with the slot by the clip. The lower end of the drive ring is positioned opposite to the upper end of the contact frame.

[0014] When another switch module is spliced ​​below the switch module, the buckle on the lower switch module is fastened to the buckle position two on the upper switch module.

[0015] Preferably, the outer casing has an elastic buckle formed inside, and the button sidewall is provided with a locking platform and a sliding groove located above the locking platform. The button is inserted from the upper port of the outer casing, and the button is limited and installed inside the outer casing by the locking engagement of the elastic buckle and the locking platform. When the button moves up and down inside the outer casing, the elastic buckle slides relative to it in the sliding groove.

[0016] Preferably, the button, the moving gear, and the drive ring form a connected cavity; the switch unit is provided with an indicator light that extends into the cavity.

[0017] Preferably, the waterproof ring is an annular structure, and its outer periphery is pressed against the upper periphery of the outer shell by a clamping ring; the inner periphery of the waterproof ring is pressed against the annular baffle around the button by a pressure cover, and the pressure cover is snapped and fixed to the button, and the pressure cover is made of a light-transmitting material.

[0018] Preferably, a light-shielding sheet is provided between the cover and the button, and the light-shielding sheet has a light-transmitting area.

[0019] The advantages of this invention are as follows: The optimized design reduces the number of components in the button assembly, simplifying the structure and facilitating assembly, thus lowering production costs. The presence of a waterproof ring enhances waterproofing. The pressure transmission path during pressing is streamlined; the self-locking switch function is achieved through the coordinated action of the first, second, and third teeth. Furthermore, a self-resetting switch function is achieved when the third tooth is not present on the moving gear. This allows all components except the moving gear to be interchangeable in both the self-locking and self-resetting button units. Manufacturers can use the same mold and production line to produce most parts, requiring only two variations (toothed / toothless) for the moving gear, simplifying production management, reducing mold investment, and demonstrating excellent practicality. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art are briefly introduced below. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the waterproof push button switch in this utility model;

[0022] Figure 2 for Figure 1 Exploded view of the waterproof push-button switch shown;

[0023] Figure 3 This is a cross-sectional view of the button unit in this utility model;

[0024] Figure 4 This is an exploded view of the button unit in this utility model;

[0025] Figure 5 This is a schematic diagram of the outer shell structure in this utility model;

[0026] Figure 6 This is a schematic diagram of the drive ring structure in this utility model;

[0027] Figure 7 This is an exploded view of the switch unit in this utility model;

[0028] Figure 8 This is a schematic diagram of the internal structure of the switch module in this utility model.

[0029] The reference numerals in the figure are as follows: 1. Button unit; 11. Housing; 111. First tooth; 112. Second stop; 113. Slot; 114. Elastic buckle; 12. Button assembly; 121. Button; 1211. Slot; 1212. Slide groove; 1213. Annular baffle; 122. Moving gear; 123. Drive ring; 1231. First stop; 1232. Strip groove; 124. Second tooth; 1 25. Third tooth; 126. Protrusion; 127. Axial groove; 13. Waterproof ring; 14. Return spring; 15. Pressure ring; 16. Cover; 2. Switch unit; 21. Clip; 22. Indicator light; 23. Mounting base; 231. Mounting cavity; 232. Snap-on position one; 24. Switch module; 241. Contact frame; 242. Snap-on plate; 243. Snap-on position two; 244. Stationary contact; 245. Moving contact. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0032] Example 1

[0033] The structure of the detachable modular waterproof push-button switch in this embodiment of the utility model is as follows: Figures 1 to 6As shown, it includes a button unit 1 and a switch unit 2; the button unit 1 is detachably mounted on the switch unit 2 and is used to control the state switching of the switch unit 2; the button unit 1 includes a housing 11 with a through cavity, a button assembly 12 mounted on the housing 11, and a waterproof ring 13; the waterproof ring 13 is located at the upper end of the housing 11 and seals the gap between the upper end of the button assembly 12 and the upper end of the housing 11; the button assembly 12 includes a button 121, a moving gear 122, and a drive ring 123 mounted in the housing 11 in a top-to-bottom order; a first tooth 111 is formed on the inner wall of the housing 11, a return spring 14 is sleeved on the outer periphery of the button 121, a second tooth 124 is provided at the lower end of the button 121, and a third tooth 125 is formed on the moving gear 122 to cooperate with the first tooth 111 and the second tooth 124, the first tooth 111, the second tooth 124, and the third tooth 125 are formed on the moving gear 122. 24 and the third tooth 125 constitute a self-locking structure. This self-locking structure is existing technology, and its principle is the same as that of a ballpoint pen's press-locking structure, which will not be described in detail here. The drive ring 123 is limited and installed on the outer shell 11 by a snap-fit ​​structure and can move up and down relative to the outer shell 11. The switch unit 2 is triggered by the downward movement of the drive ring 123, and the upper end of the drive ring 123 can resist and limit the movement of the gear 122 by contacting the lower end of the moving gear 122. In this embodiment, the number of components of the button assembly 12 is reduced, the structure is simple, and it is easy to assemble, which helps to reduce production costs. Moreover, the presence of the waterproof ring can enhance the waterproof performance. The pressure transmission path is simple when pressing. In specific pressing operations, the pressure of the button 121 is transmitted to the drive ring 123 through the moving gear 122. The self-locking function is achieved through the coordinated cooperation of the first tooth 111, the second tooth 124 and the third tooth 125, which has good practicality.

[0034] In this embodiment, an anti-rotation structure is provided between the drive ring 123 and the outer shell 11. The anti-rotation structure is used to restrict the circumferential rotation of the drive ring 123, so that when the button 121 is pressed down, the drive ring 123 can only move along its axial direction, thereby transmitting a stable pressing force. For example, the anti-rotation structure includes a protrusion 126 and an axial groove 127. The protrusion 126 is located in the axial groove 127 and is provided on the side wall of the drive ring 123. The axial groove 127 is provided on the inner wall of the outer shell 11. The cooperation between the axial groove 127 and the protrusion 126 can restrict the rotation of the drive ring 123 relative to the outer shell 11 without affecting the axial movement of the drive ring 123. As a variation, the axial groove 127 can also be provided on the side wall of the drive ring 123, and the protrusion 126 can be provided on the inner wall of the outer shell 11.

[0035] See Figure 5 and Figure 6As shown, the limiting structure includes a first baffle 1231 on the side wall of the drive ring 123 and a second baffle 112 on the inner wall of the housing 11. After the drive ring 123 is installed into the housing 11, the lower end of the first baffle 1231 abuts against the upper end of the second baffle 112 to prevent the drive ring 123 from detaching from the drive ring 123. During assembly, the drive ring 123 is installed from the lower port of the housing 11. The cooperation between the first baffle 1231 and the second baffle 112 can effectively limit the drive ring 123 to be installed at the bottom of the housing 11. This structure is simple and easy to implement.

[0036] Continue reading Figure 5 and Figure 6 An axially extending strip groove 1232 is formed on the side wall of the drive ring 123 below the first baffle 1231. The second baffle 112 is located in the strip groove 1232. When the drive ring 123 moves up and down, the second baffle 112 is displaced in the strip groove 1232. The cooperation between the second baffle 112 and the strip groove 1232 can prevent the drive ring 123 from rotating circumferentially.

[0037] like Figure 7 As shown, the switch unit 2 includes a mounting base 23 and a switch module 24 mounted on the lower end of the mounting base 23. The mounting base 23 has a vertically penetrating mounting cavity 231, and a first fastener 232 is provided on its side. The switch module 24 has a vertically movable contact frame 241, and a second fastener 243 is provided on its side with an upwardly protruding fastener plate 242 and located below the fastener plate 242. The switch module 24 is connected to the mounting base 23 by fastening the first fastener 232 through the fastener plate 242. This structural design is convenient to assemble and more flexible in use. For example, the first fastener 232 and the second fastener 243 can be configured as fastening platforms, and the fastener plate 242 can be provided with corresponding fastening holes that cooperate with the first fastener 232 / the second fastener 243.

[0038] See Figure 1 , Figure 2 and Figure 7 As shown, a slot 113 is provided on the lower side wall of the outer shell 11, and a clip 21 is mounted on the mounting base 23. The lower end of the outer shell 11 is inserted into the mounting cavity 231 and engaged with the slot 113 by the clip 21, thereby realizing the quick assembly of the switch unit 2 and the button unit 1. Preferably, the clip 21 is U-shaped, and two slots 113 are provided on the lower end of the outer shell 11, and both slots 113 are engaged with the clip 21. The lower end of the drive ring 123 is positioned opposite to the upper end of the contact frame 241. When the button 121 is pressed, the drive ring 123 can press down on the upper end of the contact frame 241, thereby causing the contact frame 241 to drive the circuit of the switch module 24 to switch on and off.

[0039] In some embodiments, when multiple switch modules 24 need to be controlled simultaneously, another switch module 24 can be spliced ​​below the switch module 24. When splicing, the buckle 242 on the lower switch module 24 is fastened to the buckle 243 on the upper switch module 24. When the contact frame 241 on the upper switch module 24 is pressed down and moves downward, it will press down on the contact frame 241 on the lower switch module 24, thereby enabling synchronous control of the lower switch module 24. This achieves the stacked connection and use of switch modules 24. In this way, users can flexibly increase or decrease the number of switch modules according to actual circuit control needs, greatly improving product adaptability and expandability.

[0040] For example, see Figure 8 As shown, the switch module 24 is internally provided with a stationary contact 244 and a moving contact 245. The stationary contact 244 is fixedly set, and the moving contact 245 is mounted on a contact holder 241. When the contact holder 241 moves up and down, it drives the moving contact 245 to move up and down. When the moving contact 245 contacts the stationary contact 244, the circuit is connected. When the moving contact 245 separates from the stationary contact 244, the circuit is disconnected.

[0041] See Figure 3 As shown, to facilitate the installation of button 121, an elastic buckle 114 is formed inside the housing 11. The side wall of button 121 is provided with a locking platform 1211 and a sliding groove 1212 located above the locking platform 1211. Button 121 is inserted from the upper port of housing 11, and the button 121 is limited and installed inside housing 11 by the locking engagement of the elastic buckle 114 and the locking platform 1211. When button 121 moves up and down inside housing 11, the elastic buckle 114 slides relative to it in the sliding groove 1212.

[0042] To add a light indication function to the push-button switch, a connected cavity is formed inside the button 121, the moving gear 122, and the drive ring 123; an indicator light 22 is provided on the switch unit 2, and the indicator light 22 is connected to the circuit of the switch unit 2. The indicator light 22 extends into the cavity, which can be used to conduct light so that the light emitted by the indicator light 22 is finally emitted from the top of the button 121 to realize the light indication function.

[0043] Furthermore, a light-shielding sheet (not shown in the figure) is provided between the pressure cover 16 and the button 121. The light-shielding sheet can be made of stainless steel, plastic, etc., and has a light-transmitting area. The added light-shielding sheet can effectively prevent light from leaking from unexpected parts, ensuring that light can only shine out through the light-transmitting area, making the indication effect clearer and more aesthetically pleasing. The shape of the light-transmitting area (such as the shape of text, letters, graphics, symbols, etc.) can be flexibly designed according to customer needs, meeting the personalized and diversified needs of products in terms of brand display and functional identification.

[0044] See Figure 3 and Figure 4 As shown, the waterproof ring 13 has an annular structure, and its outer periphery is pressed against the upper periphery of the outer shell 11 by the clamping ring 15. The inner periphery of the waterproof ring 13 is pressed against the annular baffle 1213 around the button 121 by the pressure cover 16. The pressure cover 16 is snapped and fixed to the button 121. The pressure cover 16 is made of a light-transmitting material to allow light to pass through. By setting the pressure cover 16 and the clamping ring 15, the inner and outer edges of the waterproof ring 13 can be pressed together, thereby ensuring that the waterproof ring 13 is reliably fixed and thus ensuring the sealing and waterproof performance. The waterproof ring 13 can be made of rubber. The clamping ring 15 can be fixedly connected to the upper end of the outer shell 11 by threaded connection or snap-fit.

[0045] Example 2

[0046] This embodiment is basically the same as Embodiment 1, except that the third tooth 125 is not provided on the moving gear 122. This does not form a complete self-locking structure, so the button unit 1 does not have a self-locking function. In actual use, the switch unit 2 can be triggered by pressing the button assembly 12 downwards, and when the pressure applied to the button assembly 12 is removed, the button assembly 12 can be reset in time under the elastic force of the return spring 14. In this way, the components other than the moving gear 122 in the button unit with self-locking function and the button unit with self-reset function can be interchanged. Manufacturers can use the same set of molds and production lines to produce most parts, and only need to prepare two variations (toothed / toothless) for the moving gear, which simplifies production management and reduces mold investment.

[0047] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this invention still fall within the protection scope of this invention.

Claims

1. A detachable modular waterproof push button switch, comprising a push button unit (1) and a switch unit (2); the push button unit (1) is detachably mounted on the switch unit (2); the push button unit (1) comprises a housing (11) having a through cavity, a push button assembly (12) mounted on the housing (11), and a waterproof ring (13); the waterproof ring (13) is disposed at the upper end of the housing (11); characterized in that, The button assembly (12) includes a button (121), a moving gear (122), and a drive ring (123) installed in the housing (11) in a top-to-bottom order. A first tooth (111) is formed on the inner wall of the housing (11). A reset spring (14) is sleeved on the outer periphery of the button (121). A second tooth (124) is provided at the lower end of the button (121). A third tooth (125) is formed on the moving gear (122) to cooperate with the first tooth (111) and the second tooth (124). The first tooth (111), the second tooth (124), and the third tooth (125) constitute a self-locking structure. The drive ring (123) is limited and installed on the housing (11) by a snap-fit ​​structure and can move up and down relative to the housing (11). The switch unit (2) is triggered by the downward movement of the drive ring (123).

2. The detachable modular waterproof push-button switch according to claim 1, characterized in that, The third tooth (125) is not provided on the moving gear (122).

3. The detachable modular waterproof push-button switch according to claim 1, characterized in that, An anti-rotation structure is provided between the drive ring (123) and the outer shell (11), which restricts the circumferential rotation of the drive ring (123).

4. The detachable modular waterproof push-button switch according to claim 1, characterized in that, The limiting structure includes a first baffle (1231) on the side wall of the drive ring (123) and a second baffle (112) on the inner wall of the outer shell (11). After the drive ring (123) is installed into the outer shell (11), the lower end of the first baffle (1231) abuts against the upper end of the second baffle (112) to prevent the drive ring (123) from detaching from the drive ring (123).

5. The detachable modular waterproof push-button switch according to claim 4, characterized in that, An axially extending strip groove (1232) is formed on the side wall of the drive ring (123) below the first baffle (1231), and the second baffle (112) is located in the strip groove (1232).

6. The detachable modular waterproof push button switch according to claim 1, characterized in that, The switch unit (2) includes a mounting base (23) and a switch module (24) mounted on the lower end of the mounting base (23). The mounting base (23) has a vertically penetrating mounting cavity (231) and a first fastener (232) on its side. The switch module (24) has a vertically movable contact frame (241) and an upwardly protruding fastener plate (242) and a second fastener (243) located below the fastener plate (242) on its side. The switch module (24) is fastened to the first fastener (232) through the fastener plate (242) to achieve connection with the mounting base (23). The lower side wall of the outer shell (11) is provided with a slot (113), and the mounting base (23) is equipped with a clip (21). The lower end of the outer shell (11) is inserted into the mounting cavity (231) and is engaged with the slot (113) by the clip (21). The lower end of the drive ring (123) is arranged opposite to the upper end of the contact frame (241). When another switch module (24) is spliced ​​below the switch module (24), the snap plate (242) on the lower switch module (24) is snapped to the snap position two (243) on the upper switch module (24).

7. The detachable modular waterproof push-button switch according to claim 1, characterized in that, The outer casing (11) has an elastic buckle (114) formed inside. The side wall of the button (121) is provided with a locking platform (1211) and a sliding groove (1212) located above the locking platform (1211). The button (121) is inserted from the upper port of the outer casing (11) and the button (1211) is fixedly installed inside the outer casing (11) by the locking engagement of the elastic buckle (114) and the locking platform (1211). When the button (121) moves up and down inside the outer casing (11), the elastic buckle (114) slides relative to the button (1212).

8. The detachable modular waterproof push-button switch according to claim 1, characterized in that, The button (121), the moving gear (122), and the drive ring (123) form a connected cavity; the switch unit (2) is provided with an indicator light (22), which extends into the cavity.

9. The detachable modular waterproof push-button switch according to claim 1, characterized in that, The waterproof ring (13) is an annular structure, and its outer periphery is pressed against the upper periphery of the outer shell (11) by the clamping ring (15); the inner periphery of the waterproof ring (13) is pressed against the annular baffle (1213) around the button (121) by the pressure cover (16), and the pressure cover (16) is snapped and fixed to the button (121), and the pressure cover (16) is made of light-transmitting material.

10. The detachable modular waterproof push-button switch according to claim 9, characterized in that, A light-shielding sheet is provided between the cover (16) and the button (121), and the light-shielding sheet has a light-transmitting area.

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