Membrane switch with good sealing performance

Abstract

The utility model relates to the technical field of electronic switches, in particular to a membrane switch with good sealing performance. Comprising a bottom plate and a sealing mechanism, the sealing mechanism comprises a mounting table, a membrane switch body, a waterproof table, a sealing cover, a drying device and a fixing device, the membrane switch body is directly arranged in a rectangular groove in the top of the mounting table during mounting, and a cable hole is vertically formed in the rectangular groove in the top of the mounting table, so that working cables of the membrane switch body are conveniently arranged; after the membrane switch body is installed, the sealing cover can be directly installed, under the cooperation of the waterproof platform, external water entering the interior can be reduced, the safety is improved, the drying device is used for drying water mist entering the interior from the cable hole, the protection effect is further improved, long-time use of the switch is facilitated, and the service life of the switch is prolonged. Therefore, the waterproof performance of the switch can be improved during use, and the switch can be stably used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic switches, in particular to a membrane switch with good sealing performance. Background Art

[0002] The fixing plates of existing membrane switches are mostly made of a whole PET board, which has a mediocre pressing feel. It is difficult for users to know whether they have pressed the switch correctly. It is difficult to judge whether it is a wrong press or a switch failure. The user experience is poor and it is not conducive to the update and maintenance of the switch.

[0003] Prior art CN211404375U discloses a membrane switch comprising a panel layer, a fixing layer, a spacer adhesive layer, a circuit sheet, and a backing adhesive layer, arranged in sequence from top to bottom and bonded to each other. The circuit sheet is provided with a circuit matrix comprising a plurality of circuit units, each of which includes a push contact and a plurality of connection points surrounding the push contact. Two of the connection points in each circuit unit are disconnected, while the remaining adjacent connection points are interconnected via silver paste circuits to form a connection point circuit. The fixing layer is formed with punched holes corresponding to the push contacts of each circuit matrix. The fixing layer extends inwardly along the edges of the punched holes to form pressure tabs corresponding to the press contacts. The spacer adhesive layer is provided with a metal spring corresponding to each circuit unit. This utility model membrane switch forms punched holes in the fixing layer corresponding to the push contacts of the circuit matrix, and forms pressure tabs extending inwardly along the punched holes to enhance the tactile feel of the membrane switch and improve the user experience.

[0004] However, when the above-mentioned membrane switch is actually used, water can easily enter the interior after long-term use, which seriously reduces the stability of use. Utility Model Content

[0005] The purpose of the utility model is to provide a membrane switch with good sealing performance, which can improve the waterproof performance of the switch during use and facilitate the long-term stable use of the switch.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: The present invention provides a membrane switch with good sealing performance, comprising a bottom plate and a sealing mechanism;

[0007] The sealing mechanism includes a mounting platform, a membrane switch body, a waterproof platform, a sealing cover, a drying device and a fixing device. The mounting platform is detachably connected to the base plate and is located on the base plate. The membrane switch body is installed in the top rectangular groove of the mounting platform. The waterproof platform is integrally formed with the mounting platform and is located on the top of the mounting platform. The sealing cover is detachably connected to the waterproof platform and is located on the top of the waterproof platform. The drying device is arranged in the mounting platform. The fixing device is arranged on the side of the sealing cover close to the mounting platform.

[0008] Wherein, the sealing mechanism further includes a waterproof sealing ring, and the waterproof sealing ring is arranged in the installation groove on the top of the waterproof platform.

[0009] Wherein, the drying device includes a placement box and a perforated plate. The placement box is placed in the rectangular groove on the top of the mounting platform, and a desiccant is placed inside the placement box; the perforated plate is fixed on the top of the placement box.

[0010] In which, the fixing device includes a positioning block and a fastening bolt. The positioning block is integrally formed with the sealing cover, and is slidably connected to the mounting platform and is located on the front side of the sealing cover; the fastening bolt is slidably connected to the positioning block, and is threadedly connected to the mounting platform and is located on the positioning block.

[0011] The membrane switch with good sealing performance further includes an adjustment device, which includes a connecting frame and an adjustment frame. The connecting frame is fixed to the bottom of the base plate. The adjustment frame is detachably connected to the connecting frame and is located at the bottom of the connecting frame.

[0012] The utility model provides a membrane switch with good sealing performance. When installed, the membrane switch body is directly arranged in the top rectangular groove of the mounting platform. The top rectangular groove of the mounting platform is vertically provided with a cable hole, which is convenient for setting the working cable of the membrane switch body. Furthermore, after the membrane switch body is installed, the sealing cover can be directly installed. With the cooperation of the waterproof platform, the entry of external water into the interior can be reduced, thereby improving safety. The drying device is used to dry the water mist entering the interior from the cable hole, further improving the protection effect, and facilitating the long-term use of the switch, thereby improving the waterproof performance of the switch during use, and facilitating the long-term and stable use of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by way of non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of a membrane switch with good sealing performance according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the installation position of the membrane switch body according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the overall structure of a membrane switch with good sealing performance according to the second embodiment of the present invention.

[0017] In the figure: 101-base plate, 102-mounting platform, 103-membrane switch body, 104-waterproof platform, 105-sealing cover, 106-waterproof sealing ring, 107-placement box, 108-perforated plate, 109-positioning block, 110-fastening bolt, 201-connecting frame, 202-adjusting frame. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] Example 1:

[0020] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the overall structure of a membrane switch with good sealing performance. Figure 2 This is a schematic diagram of the installation position of a membrane switch body 103. The present invention provides a membrane switch with excellent sealing performance: it includes a base plate 101 and a sealing mechanism. The sealing mechanism includes a mounting platform 102, a membrane switch body 103, a waterproof platform 104, a sealing cover 105, a waterproof sealing ring 106, a drying device, and a fixing device. The drying device includes a placement box 107 and a perforated plate 108. The fixing device includes a positioning block 109 and a fastening bolt 110. This solution can improve the waterproof performance of the switch during use, facilitating long-term and stable use of the switch. It can be understood that the above solution can improve the waterproof performance of the switch and facilitate long-term use of the switch.

[0021] In this embodiment, mounting holes are provided on the base plate 101 to facilitate fixing and mounting by bolts.

[0022] In which, the mounting platform 102 is detachably connected to the base plate 101 and is located on the base plate 101, the membrane switch body 103 is installed in the top rectangular groove of the mounting platform 102, the waterproof platform 104 is integrally formed with the mounting platform 102 and is located on the top of the mounting platform 102, the sealing cover 105 is detachably connected to the waterproof platform 104 and is located on the top of the waterproof platform 104, the drying device is arranged in the mounting platform 102, and the fixing device is arranged on the side of the sealing cover 105 close to the mounting platform 102. The mounting platform 102 is fixed to the base plate 101 by bolts. A rectangular groove is provided on the top of the mounting platform 102 to facilitate the installation of the membrane switch body 103. A vertical cable hole is provided in communication with the rectangular groove to facilitate the cable installation of the membrane switch body 103. The vertical arrangement of the cables can prevent water from flowing through the cables and entering the interior. The waterproof platform 104 is integrally formed with the mounting platform 102 to ensure strength. The sealing cover 105 can be directly buckled on the top of the waterproof platform 104. The drying device can further dry the internal water mist. The fixing device is used to fix and quickly remove the sealing cover 105.

[0023] Secondly, the waterproof sealing ring 106 is arranged in the installation groove on the top of the waterproof platform 104. By arranging the waterproof sealing ring 106, a waterproof structure can be further formed between the sealing cover 105 and the top of the waterproof platform 104.

[0024] Then, the placement box 107 is placed in the top rectangular groove of the mounting platform 102, and the desiccant is placed inside the placement box 107. The perforated plate 108 is fixed on the top of the placement box 107. The placement box 107 can be placed directly in the top rectangular groove of the mounting platform 102, and the desiccant can be placed directly inside the placement box 107. The perforated plate 108 is then installed to protect the desiccant and ensure that it is always inside the placement box 107. The perforated plate 108 also allows for ventilation.

[0025] Finally, the positioning block 109 is integrally formed with the sealing cover 105 and is slidably connected to the mounting platform 102 and located on the front side of the sealing cover 105. The fastening bolt 110 is slidably connected to the positioning block 109 and threadedly connected to the mounting platform 102, and is located on the positioning block 109. The positioning block 109 is integrally formed with the sealing cover 105. A rectangular groove is provided on the top end surface of the mounting platform 102, that is, at the bottom of the waterproof platform 104, to facilitate the sliding insertion of the positioning block 109. The positioning block 109 is provided with a stepped hole to facilitate the installation of the fastening bolt 110. After the fastening bolt 110 is installed, it can ensure the stable position of the sealing cover 105, thereby achieving good waterproof protection for the membrane switch body 103. After the fastening bolt 110 is removed, the sealing cover 105 can be directly removed. At this time, the membrane switch body 103 can be operated. The fastening bolt 110 can be installed or not, and the specific installation can be adjusted accordingly according to the usage.

[0026] When using the present invention, the waterproof performance of the switch can be improved, which is beneficial for long-term and stable use of the switch. First, the membrane switch body 103 is directly set in the top rectangular groove of the mounting platform 102 during installation, and the top rectangular groove of the mounting platform 102 is vertically provided with a cable hole, which is convenient for setting the working cable of the membrane switch body 103. Furthermore, after the membrane switch body 103 is installed, the sealing cover 105 can be directly installed and fixed by the fixing device. The waterproof sealing ring 106 can further form a waterproof structure. With the cooperation of the sealing cover 105 and the waterproof platform 104, the entry of external water into the interior can be reduced, thereby improving safety. The desiccant in the placement box 107 can be used to dry the water mist entering the interior from the cable hole, further improving the protection effect, and facilitating long-term use of the switch, thereby improving the waterproof performance of the switch during use, thereby facilitating long-term and stable use of the switch.

[0027] Example 2:

[0028] like Figure 3 As shown, Figure 3 20 is a schematic diagram of the overall structure of a membrane switch with good sealing performance. Based on the first embodiment, the utility model provides a membrane switch with good sealing performance. The membrane switch with good sealing performance further includes an adjustment device, and the adjustment device includes a connecting frame 201 and an adjustment frame 202.

[0029] The connecting frame 201 is fixed to the bottom of the base plate 101; the adjusting frame 202 is detachably connected to the connecting frame 201 and is located at the bottom of the connecting frame 201. The connecting frame 201 has a T-shaped cross-section, and its top is connected to the base plate 101 by bolts. The top of the adjusting frame 202 is connected to the connecting frame 201 by a connecting pin and nut, and the bottom can be fixed by bolts.

[0030] In this embodiment, the nut on the connecting pin of the adjustment frame 202 and the connecting frame 201 is loosened, and then the connecting frame 201 can be pulled. After adjusting to the desired position, the nut can be tightened to lock it, so that the operating angle can be adjusted when the switch is used.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A membrane switch with good sealing performance, comprising a bottom plate, characterized in that: Also included is a sealing mechanism; The sealing mechanism includes a mounting platform, a membrane switch body, a waterproof platform, a sealing cover, a drying device and a fixing device. The mounting platform is detachably connected to the base plate and is located on the base plate. The membrane switch body is installed in the top rectangular groove of the mounting platform. The waterproof platform is integrally formed with the mounting platform and is located on the top of the mounting platform. The sealing cover is detachably connected to the waterproof platform and is located on the top of the waterproof platform. The drying device is arranged in the mounting platform. The fixing device is arranged on the side of the sealing cover close to the mounting platform.

2. The membrane switch with good sealing performance according to claim 1, characterized in that: The sealing mechanism further comprises a waterproof sealing ring, which is arranged in a mounting groove on the top of the waterproof platform.

3. The membrane switch with good sealing performance according to claim 1, characterized in that: The drying device comprises a placement box and a perforated plate. The placement box is placed in the rectangular groove on the top of the mounting platform. Desiccant is placed inside the placement box. The perforated plate is fixed on the top of the placement box.

4. The membrane switch with good sealing performance according to claim 1, wherein: The fixing device includes a positioning block and a fastening bolt. The positioning block is integrally formed with the sealing cover, is slidably connected to the mounting platform, and is located on the front side of the sealing cover; the fastening bolt is slidably connected to the positioning block, is threadedly connected to the mounting platform, and is located on the positioning block.

5. The membrane switch with good sealing performance according to claim 1, characterized in that: The membrane switch with good sealing performance also includes an adjustment device, which includes a connecting frame and an adjustment frame. The connecting frame is fixed to the bottom of the base plate; the adjustment frame is detachably connected to the connecting frame and is located at the bottom of the connecting frame.

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