Touch switch

Abstract

A touch switch comprises a base used for arranging a conducting strip and an upper cover buckled with the base, a button is arranged at the center position of the upper cover, the button is in a step structure and forms an upper section connecting part and a lower section connecting part, and the upper section connecting part is provided with an extending part which extends upwards and forms a step structure with the upper section connecting part. A connecting ring for supporting the lower part through an upper-section connecting part is inserted into the lower-section part of the extending part, an anti-falling piece for preventing the connecting ring from being separated from the extending part is connected to the upper-section part, a sealing soft sleeve surrounding the upper-section connecting part is arranged at the lower end of the connecting ring, and the lower end of the sealing soft sleeve is inserted into the upper cover. The beneficial effects of the utility model lie in that the sealing soft sleeve seals the fit clearance between the button and the upper cover so as to prevent dust and water vapor from entering the base, thereby achieving the effect of complete sealing without corroding components in the base, and the sealing soft sleeve can be replaced in time after losing elasticity, thereby reducing the cost. The use effect of the switch is maintained.

Description

Technical Field

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

[0002] As the name implies, a touch switch is an electronic switch belonging to the category of electronic components. In addition, a touch switch is also called a key switch. It first appeared in Japan [called a sensitive switch]. When used, the switch function is closed and connected by applying pressure in the direction of the switch operation under the condition of the operating force. When the pressure is removed, the switch is disconnected. Its internal structure relies on the change in the force of the metal spring to achieve on and off. Because the touch switch has the advantages of small contact resistance, precise operating force error, and diversified specifications, it is widely used in electronic equipment and white appliances.

[0003] Publication No. CN217641060U discloses a moisture-proof touch switch, comprising a housing, a cover plate arranged on the housing, a button arranged on the cover plate, characterized in that an installation cavity is formed between the cover plate and the housing, one end of the button passes through the cover plate and is located in the installation cavity, and a connecting plate is arranged at one end of the button located in the installation cavity, a sealing soft sleeve surrounding the button is arranged between the connecting plate and the cover plate, and a spring is arranged in the sealing soft sleeve; contact pins are symmetrically inserted on both sides of the bottom of the installation cavity, a metal spring is clamped in the installation cavity, and the middle of the metal spring is clamped with the connecting plate. This touch switch uses a sealing soft sleeve that can follow the movement of the button to expand and contract to prevent dust and water vapor from entering the installation cavity, but there is a defect that the sealing soft sleeve exists in the installation cavity, so it cannot seal the gap between the button and the cover plate, so that dust and water vapor will enter the sealing soft sleeve from the gap between the button and the cover plate, causing corrosion to the spring in the sealing soft sleeve, and the spring in the sealing soft sleeve has a reset effect on the button, so the spring will lose its elasticity after being corroded, causing switch failure. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a light touch switch to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve the technical problem: the light touch switch comprises a base for arranging a conductive sheet, and an upper cover buckled with the base, a button is arranged at the center of the upper cover, the button is in a step configuration and forms an upper connecting part and a lower connecting part, an extension part extending upward and forming a step configuration with the upper connecting part is arranged on the upper connecting part, a connecting ring providing lower support through the upper connecting part is inserted at the lower part of the extension part, an anti-dropping piece for preventing the connecting ring from being separated from the extending part is connected at the upper part, a sealing soft sleeve surrounding the upper connecting part is arranged at the lower end of the connecting ring, and the lower end of the sealing soft sleeve is inserted in the upper cover.

[0006] Further improvement, the outer diameter of the extension part is smaller than the outer diameter of the upper connecting part and the two form a step configuration through the size difference.

[0007] Further improvement, the outer diameter of the connecting ring is larger than the outer diameter of the upper connecting part, and the outer diameter of the sealing soft sleeve is larger than the outer diameter of the upper connecting part.

[0008] To be further improved, the upper section of the extension part and the anti-slip piece thread cooperate.

[0009] To further improve, the upper and lower ends of the sealing soft sleeve are both provided with plug-in blocks, and the lower end surface of the connecting ring and the upper end surface of the upper cover are both provided with slots for corresponding plug-in blocks to be placed therein.

[0010] Further improvement, the plug block and the slot thread match.

[0011] For further improvement, a through and ring-shaped inserting cavity is provided in the inserting block, the upper end or the lower end of the sealing soft sleeve is inserted into the inserting cavity, and an insert piece is provided in the inserting cavity to prevent the upper end or the lower end of the sealing soft sleeve from coming out after being inserted.

[0012] To further improve, the insertion cavity is provided with an expansion slot at the upper end of the insertion block, and the insertion piece is provided with a grasping portion placed in the expansion slot.

[0013] The beneficial effects of the utility model are:

[0014] The sealing soft cover of the utility model seals the matching gap between the button and the upper cover, thereby preventing dust and water vapor from entering the base, thereby achieving a completely sealed effect without corroding the components in the base, and the sealing soft cover can be replaced in time after losing its elasticity to maintain the use effect of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the full cross-section structure of the button and the sealing soft sleeve combined in the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0018] Figure 4 For this utility model Figure 2 A partial enlarged schematic diagram of part B. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Referring to the accompanying drawings: This touch switch includes a base 1 for setting a conductive sheet, and an upper cover 2 buckled with the base 1, a button 3 is arranged at the center position of the upper cover 2, the button 3 is in a step configuration and forms an upper connecting part 31 and a lower connecting part 32, the upper connecting part 31 is provided with an extension part 31-a extending upward and forming a step configuration with the upper connecting part 31, a connecting ring 4 for providing lower support through the upper connecting part 31 is inserted at the lower part of the extension part 31-a, and an anti-detachment part 5 for preventing the connecting ring 4 from detaching from the extension part 31-a is connected to the upper part, and a sealing soft sleeve 6 surrounding the upper connecting part 31 is arranged at the lower end of the connecting ring 4, and the lower end of the sealing soft sleeve 6 is inserted into the upper cover 2. The principle of the utility model is that the sealing soft sleeve 6 is directly arranged on the upper connecting portion 31 of the button 3 exposed to the outside, so as to close the fitting gap generated between the upper connecting portion 31 of the button 3 and the upper cover 2, so as to prevent dust and water vapor from entering the base 1 through the fitting gap generated between the upper connecting portion 31 and the upper cover 2, thereby achieving a completely sealed effect, and will not corrode the components in the base 1, and the sealing soft sleeve 6 is replaceable, that is, it is inserted into the extension section 31-a through the connecting ring 4, and then fixed to prevent it from falling off through the anti-falling member 5, so that the sealing soft sleeve 6 can be replaced in time after losing its elasticity to maintain the use effect of the switch.

[0021] The outer diameter of the extension portion 31-a is smaller than the outer diameter of the upper connecting portion and the size difference allows the two to form a step configuration. Such a setting makes the configuration simple and easy to form, that is, the step configuration is obtained by utilizing the size difference. The step configuration can provide the connecting ring 4 with the functions of plug-in and lower support, thereby combining with the anti-slip component 5 to prevent the connecting ring 4 from slipping out of the button 3.

[0022] The outer diameter of the connecting ring 4 is larger than the outer diameter of the upper connecting part 31, and the outer diameter of the sealing soft sleeve 6 is larger than the outer diameter of the upper connecting part 31. Such a configuration allows the connecting ring 4 to have a sufficient usable area, and also allows the outer diameter of the sealing soft sleeve 6 arranged on the connecting ring 4 to be larger than the outer diameter of the upper connecting part 31, so that the matching gap generated between the upper connecting part 31 and the upper cover 2 can be enclosed in the sealing soft sleeve 6, thereby achieving dustproof and waterproof effects.

[0023] The upper section of the extension portion 31-a is threadedly matched with the anti-slip component 5. Such a setting facilitates the connection between the anti-slip component 4 and the extension portion 31-a, is easy to operate, and can ensure the connection stability between the two, thereby achieving the effect of preventing the connecting ring 4 from falling out.

[0024] Insert blocks 61 are provided on the upper and lower ends of the sealing soft sleeve 6, and slots 7 for corresponding insert blocks 61 to be placed are provided on the lower end surface of the connecting ring 4 and the upper end surface of the upper cover 2. Such a setting facilitates the connection between the sealing soft sleeve 6 and the upper cover 2 and the connecting ring 4, and can solve the problem that the sealing soft sleeve 6 itself is too thin to be directly installed on the upper cover 2 or the connecting ring 4.

[0025] The plug block 61 and the slot 7 are threadedly matched. Such a setting facilitates the connection between the plug block 61 and the slot 7 and can increase the connection stability. At the same time, the connection between the two plug blocks 61 and the upper cover 2 and the connecting ring 4 is separate, that is, one plug block 61 is first screwed on the upper cover 2, and then the other plug block 61 is screwed on the connecting ring 4. Such an installation sequence can facilitate the connection of the sealing soft cover 6.

[0026] A through-and-loop cavity 61-a is provided in the plug block 61, and the upper end or the lower end of the sealing soft sleeve 6 is inserted into the cavity 61-a. A plug 8 is provided in the cavity 61-a to prevent the sealing soft sleeve 6 from coming out after being inserted into the upper end or the lower end of the sealing soft sleeve 6, so as to realize the combination of the plug block 61 and the sealing soft sleeve 6, and the connection is active, that is, the extrusion generated by the insertion of the plug 8 into the cavity 61-a prevents the sealing soft sleeve 6 from coming out of the plug block 61, so that the sealing soft sleeve 6 can be replaced after being damaged, and the problem of glue marks that need to be removed being left on the plug block 61 by gluing can also be solved. At the same time, the sealing soft sleeve 6 is also made of rubber. The extrusion force generated when combining with the plug block 61 can cause the part of the sealing soft sleeve 6 placed in the cavity 61-a to be squeezed and deformed, that is, the contact area is expanded, which can also increase the sealing effect.

[0027] The insertion cavity 61-a is provided with an expansion slot 61-a1 at the upper end of the insertion block 61, and the insertion piece 8 is provided with a grasping portion 81 placed in the expansion slot 61-a1, that is, the expansion slot 61-a1 is used to increase the partial use area of ​​the insertion block 61, thereby facilitating user operation.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A touch switch, comprising a base (1) for arranging a conductive sheet, and an upper cover (2) buckled with the base (1), a button (3) being arranged at the center of the upper cover (2), characterized in that: The button (3) is in a stepped configuration and forms an upper connecting portion (31) and a lower connecting portion (32); the upper connecting portion (31) is provided with an extension portion (31-a) extending upward and forming a stepped configuration with the upper connecting portion (31); a connecting ring (4) is inserted at the lower portion of the extension portion (31-a) to provide lower support through the upper connecting portion (31); an anti-detachment member (5) is connected to the upper portion to prevent the connecting ring (4) from detaching from the extension portion (31-a); a sealing soft sleeve (6) surrounding the upper connecting portion (31) is provided at the lower end of the connecting ring (4); and the lower end of the sealing soft sleeve (6) is inserted into the upper cover (2).

2. The touch switch according to claim 1, characterized in that: The outer diameter of the extension portion (31-a) is smaller than the outer diameter of the upper connecting portion (31), and the two form a stepped configuration due to the size difference.

3. The touch switch according to claim 1, characterized in that: The outer diameter of the connecting ring (4) is greater than the outer diameter of the upper connecting portion (31), and the outer diameter of the sealing soft sleeve (6) is greater than the outer diameter of the upper connecting portion (31).

4. The touch switch according to claim 1, characterized in that: The upper section of the extension portion (31-a) is threadably matched with the anti-slip component (5).

5. The touch switch according to claim 1, characterized in that: Insert blocks (61) are provided on the upper and lower ends of the sealing soft sleeve (6), and slots (7) for receiving the corresponding insert blocks (61) are provided on the lower end surface of the connecting ring (4) and the upper end surface of the upper cover (2).

6. The touch switch according to claim 5, characterized in that: The insert block (61) and the slot (7) are threadably matched.

7. The touch switch according to claim 5, characterized in that: The insert block (61) is provided with an insert cavity (61-a) which penetrates through the insert block and has a ring-shaped configuration. The upper end or the lower end of the sealing soft sleeve (6) is inserted into the insert cavity (61-a). The insert cavity (61-a) is provided with an insert piece (8) for preventing the upper end or the lower end of the sealing soft sleeve (6) from falling out after being inserted.

8. The touch switch according to claim 7, characterized in that: The inserting cavity (61-a) is provided with an expansion slot (61-a1) at the upper end of the inserting block (61), and the inserting piece (8) is provided with a gripping portion (81) placed in the expansion slot (61-a1).

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