Key switch with waterproof function

Abstract

The utility model relates to the technical field of key switches, in particular to a key switch with a waterproof function, which comprises a base, a plurality of terminals are arranged at the bottom of the base, a contact rubber head connected through a spring is arranged on the base, a rubber cover sleeved on the outer side of the spring is arranged at the top of the base, and a waterproof cover is arranged at the bottom of the base. And a waterproof structure is arranged on the base. Through the arrangement of the waterproof structure, the waterproof effect can be achieved, the silica gel sleeve is arranged on the outer sides of the base and the rubber cover in a sleeving mode, the silica gel pad is arranged on the inner wall of the silica gel sleeve, the grooves are formed in the base and the rubber cover, after the silica gel sleeve is arranged on the base, the silica gel pad is in interference fit with the grooves, and the silica gel pad is in interference fit with the grooves through the telescopic force of the silica gel pad; the silica gel sleeve is tightly locked in the grooves of the base and the rubber cover, so that the waterproof function is achieved under the protection of the silica gel sleeve, and water is prevented from entering the interior to erode in the using process.

Description

Technical Field

[0001] The utility model relates to a key switch, in particular to a key switch with a waterproof function, belonging to the technical field of key switches. Background Art

[0002] A key switch is a switch with a 2P2T contact form. When the switch is pressed by force, it conducts. When not under force, the key rubber head automatically resets and the circuit is disconnected. It is an electronic switch and belongs to the category of electronic components.

[0003] Although the commonly used key switches have stable performance, they do not have the functions of dust prevention and waterproofing. When used in a complex environment, when foreign objects or water enter the inner cavity of the product, the product function fails.

[0004] Therefore, there is an urgent need to improve a key switch with a waterproof function to solve the above-mentioned existing problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a key switch with a waterproof function, which can prevent water from entering the inside of the key switch during use and avoid internal erosion and failure.

[0006] To achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] A key switch with a waterproof function includes a base. A plurality of terminals are installed at the bottom of the base. A contact rubber head connected by a spring is arranged on the base. A rubber cover sleeved outside the spring is installed at the top of the base. A waterproof structure is arranged on the base. The waterproof structure includes a silica gel sleeve sleeved outside the base. A silica gel pad is fixedly installed on the inner wall of the silica gel sleeve. Grooves for cooperating with the silica gel pad are formed on both the base and the rubber cover.

[0008] Preferably, a rubber pad is arranged at the top of the silica gel sleeve.

[0009] Preferably, a fixing block is installed at the bottom of the rubber pad. A fixing groove for mutually engaging with the fixing block is formed on the silica gel sleeve.

[0010] Preferably, a light-emitting strip is arranged on the surface of the silica gel sleeve.

[0011] Preferably, the light-emitting strip is adhesively connected to the silica gel sleeve.

[0012] Preferably, a plurality of first reinforcing strips are installed around the bottom of the silica gel sleeve. A second reinforcing strip is installed between the plurality of first reinforcing strips.

[0013] Preferably, the thickness of the silica gel pad and the height of the groove are both set to 2-3 mm.

[0014] The utility model at least has the following beneficial effects:

[0015] Through the setting of the waterproof structure, the waterproof function can be achieved. A silica gel sleeve is sleeved outside the base and the rubber cover. A silica gel pad is arranged on the inner wall of the silica gel sleeve. Grooves are formed in the base and the rubber cover. After the silica gel sleeve is sleeved on the base, the silica gel pad is in interference fit with the groove. By using the expansion force of the silica gel pad, the silica gel sleeve is tightly locked in the grooves of the base and the rubber cover. Under the protection of the silica gel sleeve, the waterproof function is achieved, and water is prevented from entering the interior to cause corrosion during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments and descriptions thereof are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the silica gel pad of the utility model;

[0018] Figure 2 is a schematic structural diagram of the silica gel sleeve of the utility model;

[0019] Figure 3 is a schematic structural diagram of the rubber cover of the utility model;

[0020] Figure 4 is a schematic structural diagram of the base of the utility model.

[0021] In the figure, 1, base; 2, terminal; 3, spring; 4, contact rubber head; 5, rubber cover; 6, waterproof structure; 7, silica gel sleeve; 8, silica gel pad; 9, groove; 10, rubber pad; 11, fixing block; 12, fixing groove; 13, light-emitting strip; 14, first reinforcing strip; 15, second reinforcing strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 - 4 shown, an embodiment of a push-button switch with a waterproof function provided in this embodiment.

[0024] A key switch with a waterproof function includes a base 1. A plurality of terminals 2 are installed at the bottom of the base 1. A contact rubber head 4 connected by a spring 3 is arranged on the base 1. A rubber cover 5 sleeved outside the spring 3 is installed on the top of the base 1. A waterproof structure 6 is arranged on the base 1. The waterproof structure 6 includes a silica gel sleeve 7 sleeved outside the base 1. A silica gel pad 8 is fixedly installed on the inner wall of the silica gel sleeve 7. Grooves 9 for cooperating with the silica gel pad 8 are formed on both the base 1 and the rubber cover 5. Through the setting of the waterproof structure 6, the waterproof function can be achieved. A silica gel sleeve 7 is sleeved outside the base 1 and the rubber cover 5. A silica gel pad 8 is arranged on the inner wall of the silica gel sleeve 7. Grooves 9 are formed on the base 1 and the rubber cover 5. After the silica gel sleeve 7 is sleeved on the base 1, the silica gel pad 8 is in interference fit with the groove 9. By using the elastic force of the silica gel pad 8, the silica gel sleeve 7 is tightly locked in the grooves of the base 1 and the rubber cover 5, and the waterproof function is achieved under the protection of the silica gel sleeve 7, avoiding water from entering the interior and eroding during use.

[0025] A rubber pad 10 is arranged at the top of the silica gel sleeve 7. A fixing block 11 is installed at the bottom of the rubber pad 10. A fixing groove 12 for engaging with the fixing block 11 is formed on the silica gel sleeve 7. A light-emitting strip 13 is arranged on the surface of the silica gel sleeve 7. The light-emitting strip 13 is adhesively connected to the silica gel sleeve 7 through an adhesive. Through the setting of the rubber pad 10, the top of the silica gel sleeve 7 can be protected, avoiding wear on the top of the silica gel sleeve 7 caused by long-term pressing use. Through the setting of the fixing block 11 and the fixing groove 12, the fixing block 11 and the fixing groove 12 are in interference fit to fix the rubber pad 10 and prevent it from falling off. Through the setting of the light-emitting strip 13, it can generate light at night, facilitating the user to use.

[0026] A plurality of first reinforcing strips 14 are installed around the bottom of the silica gel sleeve 7. A second reinforcing strip 15 is installed between the plurality of first reinforcing strips 14. The thickness of the silica gel pad 8 and the height of the groove 9 are both set to 2-3 mm. Through the setting of the first reinforcing strip 14 and the second reinforcing strip 15, the support strength of the bottom of the silica gel sleeve 7 can be enhanced, avoiding the bottom of the silica gel sleeve 7 being distorted to generate gaps after long-term use.

[0027] In this embodiment, as Figures 1 - 4 shown, the working process of a key switch with a waterproof function provided in this embodiment is as follows:

[0028] A silica gel sleeve 7 is sleeved outside the base 1 and the rubber cover 5. A silica gel pad 8 is provided on the inner wall of the silica gel sleeve 7. Grooves 9 are formed on the base 1 and the rubber cover 5. After the silica gel sleeve 7 is sleeved on the base 1, the silica gel pad 8 is in interference fit with the grooves 9. By using the expansion and contraction force of the silica gel pad 8, the silica gel sleeve 7 is tightly locked in the grooves of the base 1 and the rubber cover 5. Under the protection of the silica gel sleeve 7, the base 1 is waterproofed. A rubber pad 10 is provided to protect the top of the silica gel sleeve 7. The rubber pad 10 is prevented from falling off the silica gel sleeve 7 by the engagement of the fixing block 11 and the fixing groove 12.

[0029] In summary, in this embodiment, for a push-button switch with a waterproof function according to this embodiment, through the setting of the rubber pad 10, it can protect the top of the silica gel sleeve 7 and avoid wear on the top of the silica gel sleeve 7 caused by long-term pressing use. Through the setting of the fixing block 11 and the fixing groove 12, the interference fit of the fixing block 11 and the fixing groove 12 can fix the rubber pad 10 and prevent it from falling off. Through the setting of the light-emitting strip 13, it can generate light at night, which is convenient for users to use. Through the setting of the first reinforcing strip 14 and the second reinforcing strip 15, the support strength of the bottom of the silica gel sleeve 7 can be enhanced, and the bottom of the silica gel sleeve 7 is prevented from being distorted to generate gaps after long-term use.

[0030] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0031] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0032] The foregoing description illustrates and describes several preferred embodiments of the present utility model. However, as previously mentioned, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in the relevant field. Any changes and variations made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A push button switch with waterproof function, comprising a base (1), a plurality of terminals (2) being mounted on the bottom of the base (1), a contact rubber head (4) connected via a spring (3) being arranged on the base (1), a rubber cover (5) being mounted on the top of the base (1) and being sleeved on the outside of the spring (3), characterized in that: The base (1) is provided with a waterproof structure (6), the waterproof structure (6) comprising a silicone sleeve (7) sleeved on the outside of the base (1), a silicone pad (8) fixedly mounted on the inner wall of the silicone sleeve (7), and a groove (9) for use with the silicone pad (8) is provided on both the base (1) and the rubber cover (5).

2. A push button switch with waterproof function according to claim 1, characterized in that: A rubber pad (10) is arranged on the top of the silicone sleeve (7).

3. A push button switch with waterproof function according to claim 2, characterized in that: A fixing block (11) is installed at the bottom of the rubber pad (10), and a fixing groove (12) which is engaged with the fixing block (11) is provided on the silicone sleeve (7).

4. The waterproof push button switch according to claim 1, characterized in that: A light strip (13) is provided on the surface of the silicone sleeve (7).

5. A push button switch with waterproof function according to claim 4, characterized in that: The light strip (13) and the silicone sleeve (7) are connected by gluing with an adhesive.

6. The waterproof push button switch according to claim 1, characterized in that: A plurality of first reinforcement strips (14) are installed around the bottom of the silicone sleeve (7), and a second reinforcement strip (15) is installed between the plurality of first reinforcement strips (14).

7. The waterproof push button switch according to claim 1, characterized in that: The thickness of the silicone pad (8) and the height of the groove (9) are both set to 2-3 mm.

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