CN220367835U - Seepage-proof type tact switch - Google Patents

Abstract

The utility model discloses an anti-seepage type tact switch which comprises a body, a button, a contact, a waterproof membrane and a fixed contact, wherein cylinders are fixedly arranged at two ends of the body, a cover plate is clamped at the upper end of the body, a first groove is formed in the cover plate, the button is connected in the first groove in a sliding mode, a second groove is formed in the periphery of the surface of the cover plate, and the cylinders are clamped in the second groove. The impermeable tact switch is provided with a water seepage prevention structure, a waterproof membrane is arranged in the body, the waterproof membrane is made of high-elasticity acrylic acid waterproof paint, high-quality modified acrylic acid ester and various high-molecular polymer emulsions are used as base materials, and the waterproof membrane is a single-component aqueous environment-friendly high-grade high-molecular waterproof coating material which is processed through advanced technology, so that the impermeable tact switch has a waterproof effect, and meanwhile, the impermeable tact switch also has certain elasticity, and the waterproof membrane covers parts below a button, so that the sealing performance of the switch is enhanced, and the impermeable effect is achieved.

Description

Seepage-proof type tact switch

Technical Field

The utility model relates to the technical field of tact switches, in particular to an anti-seepage tact switch.

Background

The touch switch mainly comprises a cover plate, a button, a spring plate, a terminal and a base, is widely applied to various electric appliances, gradually tends to be intelligent and digital along with the continuous development of high and new technologies, and has higher requirements on reliability and stability.

In the prior art, chinese patent with the authority of the publication number of CN202721058U discloses a tact switch, which comprises a cover plate, a button, an elastic sheet, a terminal and a base, wherein a through hole matched with the button is formed in the geometric center of the cover plate, one part of the button is exposed in the air, and a cavity is formed inside the cover plate and the base, wherein the tact switch further comprises a button carrier which plays a limiting role between the button and the cover plate, the button carrier is clamped and fixed with the button, one part of the terminal is embedded in the base, the other part of the terminal is exposed in the cavity, the exposed part of the terminal is positioned below the button, and the elastic sheet is arranged between the button and the exposed part;

when the product is used for the tact switch, the tact switch is provided with the through hole matched with the button through the cover plate, the button, the elastic piece, the terminal and the base, and part of the button is exposed in the air, so that the tact switch has the characteristics of long service life, stable contact and the like, but the tact switch is poor in sealing performance, so that the tact switch is easy to enter water, the tact switch is enabled to be out of order, and meanwhile, after the tact switch is used for a long time, the elastic structure inside the tact switch is easy to fatigue failure.

Aiming at the problems, innovative design is urgently needed on the basis of the original structure of the tact switch device.

Disclosure of Invention

The utility model aims to provide an anti-seepage type tact switch, which is used for solving the problems that water seepage is easy to occur and a spring sheet is easy to fatigue to cause switch failure in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the anti-seepage type tact switch comprises a body, a button, a contact, a waterproof membrane and a stationary contact, wherein cylinders are fixedly arranged at two ends of the body, a cover plate is clamped at the upper end of the body, a first groove is formed in the cover plate, the button is connected in the first groove in a sliding mode, a second groove is formed in the periphery of the surface of the cover plate, and the cylinders are clamped in the second groove;

the waterproof membrane is connected with the inside through connection of middle-end of body, and the bottom middle part of body is provided with the movable contact, and the stationary contact is located both sides of movable contact, and the stationary contact sets up inside the bottom of body, the bottom both sides of body are fixed to be provided with the terminal, and the inside sliding tray that has seted up in both ends of body, and the bottom fixedly connected with spring of sliding tray to the other end fixedly connected with second shell fragment of spring, the top of stationary contact is provided with first shell fragment, and first shell fragment is located the below of second shell fragment.

Further, the button forms a sliding structure with the cover plate through the first groove, four second grooves are formed in the cover plate, the cover plate forms a clamping structure with the cylinder through the second grooves, and the lower surface of the cover plate is tightly attached to the upper surface of the body.

Further, the terminal is provided with four on the body, and the terminal constitutes electric connection with the stationary contact, when the button is pressed down to the hand to make first shell fragment and movable contact, when the hand is released, the button rebounds again.

Furthermore, the waterproof membrane is made of high-elasticity acrylic acid waterproof paint, and the high-elasticity acrylic acid waterproof paint is a single-component water-based environment-friendly high-grade high-polymer waterproof coating material which is processed by an advanced process by taking high-quality modified acrylic acid ester and various high-polymer emulsions as base materials, so that the waterproof membrane has a waterproof effect and a certain elasticity.

Further, the second elastic sheet and the sliding groove form a sliding structure, and the second elastic sheet and the body form an elastic structure through the spring, when the second elastic sheet is pressed downwards, the spring is extruded to deform, and the spring deformation generates repulsive force to push the second elastic sheet back to the original position, so that the second elastic sheet returns to the original position.

Further, the material of the first elastic piece is iron, and the first elastic piece is just regarded as an arc structure, and the characteristic of iron enables electrification, and the first elastic piece is of an arc structure and has elasticity.

Compared with the prior art, the utility model has the beneficial effects that:

1. the impermeable tact switch is provided with a water seepage prevention structure, a waterproof membrane is arranged in the body, the waterproof membrane is made of high-elasticity acrylic acid waterproof paint, high-quality modified acrylic acid ester and various high-molecular polymer emulsions are used as base materials, and the waterproof membrane is a single-component aqueous environment-friendly high-grade high-molecular waterproof coating material which is processed through advanced technology, so that the impermeable tact switch has a waterproof effect, and meanwhile, the impermeable tact switch also has certain elasticity, and the waterproof membrane covers parts below a button, so that the sealing performance of the switch is enhanced, and the impermeable effect is achieved.

2. This prevention of seepage formula dabs switch is provided with elastic device, can rebound by first shell fragment after the button pushes down first shell fragment generally, makes things convenient for later use, but long-term elasticity that uses first shell fragment is tired easily, is provided with the second shell fragment until, and the second shell fragment is located the top of first shell fragment, can rebound the button normal position to avoided because of the tired phenomenon that makes the button unable normal position of first shell fragment elasticity produce, make dab switch more stable, life-span use is longer.

Drawings

FIG. 1 is a schematic perspective view of a body of the present utility model;

FIG. 2 is a schematic elevational cross-sectional view of the present utility model;

FIG. 3 is a schematic top cross-sectional view of the present utility model;

FIG. 4 is a schematic top view of the cover plate of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 2 according to the present utility model.

In the figure: 1. a body; 2. a button; 3. a cover plate; 4. a cylinder; 5. a terminal; 6. a movable contact; 7. a first elastic sheet; 8. a waterproof membrane; 9. a sliding groove; 10. a spring; 11. a second spring plate; 12. a first groove; 13. a second groove; 14. and a stationary contact.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a prevention of seepage formula tact switch, includes body 1, button 2, movable contact 6, waterproof membrane 8 and stationary contact 14, and the both ends fixed mounting of body 1 has cylinder 4, and the upper end block of body 1 has cover plate 3, and first recess 12 has been seted up to the inside of cover plate 3, and sliding connection has button 2 in first recess 12, and second recess 13 has been seted up around the surface of cover plate 3, and the inside block of second recess 13 has cylinder 4;

the inside through connection of middle-end of body 1 has waterproof membrane 8, and the bottom middle part of body 1 is provided with movable contact 6, and stationary contact 14 is located movable contact 6's both sides, and stationary contact 14 sets up inside the bottom of body 1, the fixed terminal 5 that is provided with in bottom both sides of body 1, and the sliding tray 9 has been seted up to the inside sliding tray 9 that has just been seted up in both ends of body 1, and the bottom fixedly connected with spring 10 of sliding tray 9, and the other end fixedly connected with second shell fragment 11 of spring 10, the top of stationary contact 14 is provided with first shell fragment 7, and first shell fragment 7 is located the below of second shell fragment 11.

The waterproof membrane 8 is made of high-elasticity acrylic waterproof paint;

according to fig. 1-5, the inside of body 1 is provided with waterproof membrane 8, waterproof membrane 8 is located the below of button 2, waterproof membrane 8's four sides gomphosis is in the inside of body 1, waterproof membrane 8's material is high elasticity acrylic acid waterproof coating, high elasticity acrylic acid waterproof coating has elasticity waterproof characteristic, when button 2 pushes down, waterproof membrane 8 can take place deformation, can not influence the tact switch work, tact switch has the function of infiltration prevention when waterproof membrane 8's setting, increase tact switch's leakproofness simultaneously.

The button 2 and the cover plate 3 form a sliding structure through the first grooves 12, the second grooves 13 are formed in four on the cover plate 3, the cover plate 3 and the cylinder 4 form a clamping structure through the second grooves 13, the lower surface of the cover plate 3 is tightly attached to the upper surface of the body 1, the terminals 5 are arranged on the body 1, the terminals 5 and the fixed contacts 14 form electric connection, the second elastic sheet 11 and the sliding groove 9 form a sliding structure, the second elastic sheet 11 and the body 1 form an elastic structure through the springs 10, the material of the first elastic sheet 7 is iron, and the first elastic sheet 7 is an arc structure;

according to fig. 1-5, when a user presses the button 2, the button 2 firstly presses the waterproof membrane 8, secondly presses the second elastic piece 11, and finally presses the first elastic piece 7, the first elastic piece 7 contacts the movable contact 6, so that the tact switch works, when the second elastic piece 11 is pressed down, the spring 10 deforms, repulsive force can be generated in the deformation process of the spring 10, the repulsive force can be generated when the first elastic piece 7 is pressed by the button 2, but the first elastic piece 7 has a simple structure and can generate elastic fatigue in long-term use, the second elastic piece 11 is arranged, and the second elastic piece 11 rebounds under the action of the repulsive force of the spring 10, so that the phenomenon that the button 2 cannot return to the original position due to the elastic fatigue of the first elastic piece 7 is avoided, the tact switch is more stable, the service life is longer, and the tact switch is more stable.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a prevention of seepage formula dabs switch, includes body (1), button (2), movable contact (6), waterproof membrane (8) and stationary contact (14), its characterized in that: the novel anti-theft device is characterized in that the two ends of the body (1) are fixedly provided with the cylinders (4), the upper end of the body (1) is clamped with the cover plates (3), the first grooves (12) are formed in the cover plates (3), the buttons (2) are connected in the first grooves (12) in a sliding mode, the second grooves (13) are formed in the periphery of the surface of the cover plates (3), and the cylinders (4) are clamped in the second grooves (13);

the waterproof device is characterized in that a waterproof membrane (8) is connected inside the middle end of the body (1) in a penetrating manner, a movable contact (6) is arranged in the middle of the bottom end of the body (1), a fixed contact (14) is arranged at two sides of the movable contact (6), the fixed contact (14) is arranged inside the bottom end of the body (1), terminals (5) are fixedly arranged at two sides of the bottom end of the body (1), sliding grooves (9) are formed in the two ends of the body (1), a spring (10) is fixedly connected to the bottom end of the sliding grooves (9), a second elastic piece (11) is fixedly connected to the other end of the spring (10), a first elastic piece (7) is arranged above the fixed contact (14), and the first elastic piece (7) is arranged below the second elastic piece (11).

2. The impermeable tact switch of claim 1, wherein: the button (2) forms a sliding structure with the cover plate (3) through the first groove (12), four second grooves (13) are formed in the cover plate (3), the cover plate (3) forms a clamping structure with the cylinder (4) through the second grooves (13), and the lower surface of the cover plate (3) is tightly attached to the upper surface of the body (1).

3. The impermeable tact switch of claim 1, wherein: the four terminals (5) are arranged on the body (1), and the terminals (5) and the stationary contacts (14) form electric connection.

4. The impermeable tact switch of claim 1, wherein: the waterproof membrane (8) is made of high-elasticity acrylic waterproof paint.

5. The impermeable tact switch of claim 1, wherein: the second elastic sheet (11) and the sliding groove (9) form a sliding structure, and the second elastic sheet (11) and the body (1) form an elastic structure through the spring (10).

6. The impermeable tact switch of claim 1, wherein: the first elastic sheet (7) is made of iron, and the first elastic sheet (7) is in an arc-shaped structure.