Quick-release waterproof membrane switch

Abstract

The utility model relates to a quick-release waterproof membrane switch, which belongs to the technical field of membrane switches and comprises a mounting plate, two mounting blocks are fixed on the front surface of the mounting plate, a back plate is slidably connected between the two mounting blocks, a waterproof membrane switch shell is mounted on the front surface of the back plate, a mounting groove is formed in the back surface of the back plate, and a waterproof membrane switch is mounted in the mounting groove. A screen plate is installed in the installation groove, an installation mechanism used for assembling and disassembling the screen plate is arranged on the installation plate, and a fixing mechanism is arranged on the back plate. The mounting mechanism comprises guide blocks fixed to the left side and the right side of the back plate, guide grooves are formed in the opposite sides of the two mounting blocks, and guide rods which perpendicularly penetrate through the guide blocks and are in sliding connection with the guide blocks are fixed between the upper inner walls and the lower inner walls of the guide grooves. According to the membrane switch with the good waterproof performance, the waterproof membrane switch shell slides downwards, then the mounting mechanism pops up the screen plate backwards, the assembly and disassembly efficiency is high, and the disassembly and cleaning work of the screen plate is greatly facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane switches, in particular to a quick-detachable waterproof membrane switch. Background Art

[0002] Membrane switch, also known as touch keyboard, adopts an overall sealed structure composed of a flat multi-layer combination. It is a new type of electronic component that integrates light, machinery and electricity, and seals the key switch, panel, mark, symbol display and lining together. It is a fundamental change in the appearance structure of electronic products. It can replace the keys of conventional discrete components and perform the tasks of the operating system more reliably. Membrane switch has good advantages such as good waterproof and dustproof.

[0003] For example, a Chinese patent (publication number: CN218918700U) discloses a waterproof membrane switch, including a box body, a cover plate, a control panel, a control key, a connecting block, a storage box, a clamping structure, an electronic board and a socket; a groove is provided at the top of the box body, the cover plate is located inside the groove, the control panel is located at the top of the cover plate, the control key is located at the bottom of the control panel, the connecting block is located at the inner end of the box body, the connecting block is fixedly connected to the inner wall of the box body, the end of the connecting block is fixedly connected to the storage box, the inner two ends of the storage box are connected to the clamping structure, the clamping structure is clamped and connected to the electronic board, the socket is located at the top of the electronic board, and the rear ends of the control panel and the control key are provided with wires, which can remove moisture and are waterproof and can be easily disassembled and installed.

[0004] However, the above-mentioned search patent still has some shortcomings. It is equipped with a detachable filter corresponding to the heat dissipation holes in the switch box. After long-term use, a large amount of dust is easily attached to the surface of the filter. It is often necessary to manually disassemble the switch box in advance, and then the filter can be replaced from the inside of the box. The actual operation is time-consuming, labor-intensive and inconvenient, which seriously affects work efficiency. Therefore, a quick-release waterproof membrane switch is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a quick-detachable waterproof membrane switch, which has the advantages of easy removal of the filter for replacement, etc., and solves the problem that the device disclosed in the above-mentioned search patent is inconvenient to clean the filter during use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-detachable waterproof membrane switch, comprising a mounting plate, two mounting blocks are fixed on the front of the mounting plate, a back plate is slidably connected between the two mounting blocks, a waterproof membrane switch housing is mounted on the front of the back plate, a mounting groove is provided on the back of the back plate, a mesh plate is mounted in the mounting groove, a mounting mechanism for loading and unloading the mesh plate is provided on the mounting plate, and a fixing mechanism for fixing the waterproof membrane switch housing is provided on the back plate;

[0007] The mounting mechanism includes guide blocks fixed on the left and right sides of the back plate, guide grooves are provided on the opposite sides of the two mounting blocks, guide rods are fixed between the upper and lower inner walls of the guide grooves, vertically penetrate the guide blocks and are slidably connected thereto, springs are mounted on the outer peripheral walls of the guide rods, two pop-up grooves are provided in the back plate, elastic sheets are fixed on the front inner walls of the pop-up grooves, and a plurality of ball bearings are rotatably connected to the front side of the mounting plate.

[0008] Furthermore, the fixing mechanism includes an annular plate fixed to the front side of the back plate, the top and bottom surfaces of the waterproof membrane switch housing are slidably connected with disassembly rods, the opposite ends of the two disassembly rods are fixed with connecting plates, the opposite sides of the two connecting plates are fixed with tension springs with one end fixed to the inner wall of the waterproof membrane switch housing, the opposite sides of the two connecting plates are fixed with limiting blocks, and the top and bottom surfaces of the annular plate are provided with limiting holes.

[0009] Furthermore, L-shaped mounting ear plates are fixed on both left and right sides of the mounting plate, the waterproof membrane switch housing is a rectangular shell with a hollow interior and an open back, and the mesh plate is gap-matched with the mounting groove.

[0010] Furthermore, the front sides of the mounting plate and the back plate are both provided with heat dissipation holes, and the two heat dissipation holes are front and back opposite to each other, the heat dissipation hole on the back plate is located at the front side of the mounting groove, and the two are connected in a T-shaped structure.

[0011] Furthermore, the guide groove is used for allowing the guide block to slide up and down inside it, the spring is arranged below the guide block, the pop-up groove is located at the front side of the mounting groove and is connected thereto, the multiple balls are divided into two groups on the left and right, and the multiple balls in each group are arranged up and down.

[0012] Furthermore, the outer wall of the annular plate abuts against the inner wall of the waterproof membrane switch housing, and the top and bottom surfaces of the waterproof membrane switch housing are provided with guide holes for the disassembly rod to vertically pass through and to fit with the gap therethrough, and circular pressing plates are fixed to the opposite ends of the two disassembly rods.

[0013] Furthermore, the tension spring is sleeved on the outer peripheral wall of the disassembly rod, and the limit block and the limit hole are vertically opposite to each other and the two are clearance-matched.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. When using the quick-detachable waterproof membrane switch, the device is fixed on the wall through the mounting plate. A mesh plate is installed on the back plate through the mounting mechanism for heat dissipation and dust prevention. When there is a lot of dust attached to the mesh plate and needs to be cleaned, the waterproof membrane switch shell can be slid downward, so that the mounting mechanism pops the mesh plate backward. The loading and unloading efficiency is high, which greatly facilitates the disassembly and cleaning of the mesh plate. It is more convenient to use, more practical, and easier to promote and use.

[0016] 2. The quick-detachable waterproof membrane switch has a waterproof membrane switch housing installed on the front of the back plate through a fixed mechanism. When some electronic components inside the waterproof membrane switch housing fail, the waterproof membrane switch housing can be easily disassembled through the fixed mechanism, thereby facilitating the maintenance and repair of the device and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a front view schematic diagram of the back plate of the utility model;

[0019] Figure 3 It is a front view schematic diagram of the partial structure of the installation mechanism of the utility model;

[0020] Figure 4 It is a side view schematic diagram of the fixing mechanism of the utility model.

[0021] In the figure: 1 mounting plate, 2 mounting block, 3 back plate, 4 waterproof membrane switch housing, 5 mounting slot, 6 mesh plate, 701 guide block, 702 guide slot, 703 guide rod, 704 spring, 705 pop-up slot, 706 elastic sheet, 707 ball, 801 annular plate, 802 disassembly rod, 803 connecting plate, 804 tension spring, 805 limit block, 806 limit hole, 9 heat dissipation hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3A quick-detachable waterproof membrane switch in this embodiment includes a mounting plate 1, L-shaped mounting ear plates are fixed on both sides of the mounting plate 1, two mounting blocks 2 are fixed on the front of the mounting plate 1, a back plate 3 is slidably connected between the two mounting blocks 2, a waterproof membrane switch housing 4 is installed on the front of the back plate 3, the waterproof membrane switch housing 4 is a rectangular shell with a hollow interior and an open back, a mounting groove 5 is provided on the back of the back plate 3, heat dissipation holes 9 are provided on the front of the mounting plate 1 and the back plate 3, and the two heat dissipation holes 9 are opposite to each other front and back, the heat dissipation holes 9 on the back plate 3 are located in front of the mounting groove 5 and the two are connected in a T-shaped structure, a mesh plate 6 is installed in the mounting groove 5, the mesh plate 6 and the mounting groove 5 are clearance-matched, and a mounting mechanism for loading and unloading the mesh plate 6 is provided on the mounting plate 1. When in use, the device is fixed to the wall through the mounting plate 1. The waterproof membrane switch The heat generated inside the shell 4 is discharged to the rear side through the heat dissipation holes 9, and the dust-proof function is activated through the mesh plate 6 installed in the mounting groove 5. When there is a lot of dust attached to the mesh plate 6 and needs to be cleaned, the waterproof membrane switch shell 4 can be slid downward, so that the mounting mechanism pops out the mesh plate 6 backward, and the loading and unloading efficiency is high, which greatly facilitates the disassembly and cleaning of the mesh plate 6. It is more convenient to use, more practical, and more convenient to promote and use. A fixing mechanism for fixing the waterproof membrane switch shell 4 is provided on the back plate 3. The waterproof membrane switch shell 4 is installed on the front side of the back plate 3 through the set fixing mechanism. When some electronic components inside the waterproof membrane switch shell 4 fail, the waterproof membrane switch shell 4 can be conveniently disassembled through the fixing mechanism, thereby providing convenience for the maintenance and repair of the device, and further improving the practicality of the device.

[0024] It should be noted that the waterproof membrane switch structure inside the waterproof membrane switch housing 4 is a mature and public technology in the prior art, so its specific structure and working principle will not be described in detail herein.

[0025] See also Figure 1-3The mounting mechanism includes guide blocks 701 fixed on the left and right sides of the back plate 3, and guide grooves 702 are provided on the opposite sides of the two mounting blocks 2. A guide rod 703 vertically penetrating the guide block 701 and slidably connected thereto is fixed between the upper and lower inner walls of the guide groove 702. A spring 704 is sleeved on the outer peripheral wall of the guide rod 703. The guide groove 702 is used for the guide block 701 to slide up and down therein. The spring 704 is arranged below the guide block 701. When the mesh plate 6 needs to be cleaned, the waterproof membrane switch housing 4 is slid downward, and the waterproof membrane switch housing 4 drives the back plate 3 to move downward. The back plate 3 drives the two guide blocks 701 to slide downward along the guide rod 703 inside the guide groove 702 and compress the spring 704. Two pop-up grooves 705 are provided in the back plate 3. The pop-up grooves 705 are located at the front side of the mounting groove 5 and connected thereto. When the mesh plate 6 on the back plate 3 moves down to the point where it is not front-to-back opposite to the mounting plate 1, the mesh plate 6 loses the contact with the mounting plate 1, and the elastic sheet 706 can push the mesh plate 6 backward, causing it to pop out of the mounting groove 5 to complete the disassembly. The front side of the mounting plate 1 is rotatably connected with a plurality of balls 707, and the plurality of balls 707 are evenly divided into two groups on the left and right, and the plurality of balls 707 in each group are arranged up and down. After the mesh plate 6 is cleaned, the mesh plate 6 is installed back into the mounting groove 5 and the elastic sheet 706 is squeezed forward, and then the waterproof membrane switch housing 4 is slowly moved up in cooperation with the spring 704. When the back side of the mesh plate 6 contacts the balls 707, the mesh plate 6 is contacted with the mounting groove 5 through the balls 707, and the waterproof membrane switch housing 4 can be completely loosened so that it is automatically reset, and the installation of the complete mesh plate 6 is completed.

[0026] See also Figure 4In this embodiment, the fixing mechanism includes an annular plate 801 fixed to the front of the back plate 3, and the top and bottom surfaces of the waterproof membrane switch housing 4 are slidably connected with disassembly rods 802. The outer peripheral wall of the annular plate 801 abuts against the inner peripheral wall of the waterproof membrane switch housing 4. The top and bottom surfaces of the waterproof membrane switch housing 4 are provided with guide holes for the disassembly rod 802 to vertically penetrate and match with the clearance. The opposite ends of the two disassembly rods 802 are fixed with circular pressing plates, and the opposite ends of the two disassembly rods 802 are fixed with connecting plates 803. The opposite sides of the two connecting plates 803 are fixed with tension springs 804 with one end fixed to the inner wall of the waterproof membrane switch housing 4. The tension springs 804 are sleeved on the outer peripheral walls of the disassembly rods 802. When it is necessary to inspect the electronic components inside the waterproof membrane switch housing 4, the two disassembly rods 802 are Press toward the inside of the waterproof membrane switch housing 4 to drive the two connecting plates 803 to move relative to each other and stretch the tension spring 804. The two connecting plates 803 are fixed on the opposite sides of the two connecting plates 803. The top and bottom surfaces of the annular plate 801 are provided with limiting holes 806. The limiting blocks 805 and the limiting holes 806 are opposite to each other and the gap between the two is matched. At the same time, the connecting plate 803 drives the limiting blocks 805 to disengage from the limiting holes 806 on the annular plate 801, so that the waterproof membrane switch housing 4 can be moved to the front side for disassembly. When the inspection is completed, press the disassembly rod 802, and then the back side of the waterproof membrane switch housing 4 is opposite to the annular plate 801, so that the annular plate 801 is inserted into the waterproof membrane switch housing 4, and the limiting blocks 805 are further driven by the tension spring 804 to reset and insert into the limiting holes 806 for limited installation.

[0027] The working principle of the above embodiment is:

[0028] (1) When in use, the device is fixed to the wall through the mounting plate 1. The heat generated inside the waterproof membrane switch housing 4 is discharged to the rear side through the heat dissipation holes 9, and the dustproof function is activated through the mesh plate 6 installed in the mounting groove 5. When the mesh plate 6 needs to be cleaned, the waterproof membrane switch housing 4 is slid downward, and the waterproof membrane switch housing 4 drives the back plate 3 to move downward. The back plate 3 drives the two guide blocks 701 to slide downward along the guide rod 703 in the guide groove 702 and compress the spring 704. When the mesh plate 6 on the back plate 3 moves down to a position that is not in contact with the mounting plate 1 is relative to the front and back, at this time, the mesh plate 6 loses the contact with the mounting plate 1, and the elastic sheet 706 can push the mesh plate 6 backward, so that it pops out of the mounting slot 5 to complete the disassembly. After the mesh plate 6 is cleaned, the mesh plate 6 is installed back into the mounting slot 5 and the elastic sheet 706 is pressed forward, and then the waterproof membrane switch housing 4 is slowly moved up with the spring 704. When the back of the mesh plate 6 contacts the ball 707, the mesh plate 6 is contacted in the mounting slot 5 through the ball 707, and the waterproof membrane switch housing 4 can be completely loosened to automatically reset the complete installation of the mesh plate 6.

[0029] (2) When it is necessary to inspect and repair the electronic components inside the waterproof membrane switch housing 4, the two disassembly rods 802 are pressed toward the inside of the waterproof membrane switch housing 4, so that the two connecting plates 803 move relative to each other and stretch the tension spring 804. At the same time, the connecting plate 803 drives the limit block 805 to disengage from the limit hole 806 on the annular plate 801, so that the waterproof membrane switch housing 4 can be moved forward for disassembly. When the inspection is completed, the disassembly rod 802 is pressed, and then the back of the waterproof membrane switch housing 4 is aligned with the annular plate 801, so that the annular plate 801 is inserted into the waterproof membrane switch housing 4, and the limit block 805 is further driven by the tension spring 804 to return to the limit hole 806 for limited installation.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release waterproof membrane switch, comprising a mounting plate (1), characterized in that: Two mounting blocks (2) are fixed on the front of the mounting plate (1); a back plate (3) is slidably connected between the two mounting blocks (2); a waterproof membrane switch housing (4) is mounted on the front of the back plate (3); a mounting groove (5) is provided on the back of the back plate (3); a mesh plate (6) is mounted in the mounting groove (5); a mounting mechanism for loading and unloading the mesh plate (6) is provided on the mounting plate (1); and a fixing mechanism for fixing the waterproof membrane switch housing (4) is provided on the back plate (3); The mounting mechanism comprises guide blocks (701) fixed on the left and right sides of the back plate (3); guide grooves (702) are provided on the opposite sides of the two mounting blocks (2); a guide rod (703) vertically penetrating the guide block (701) and slidably connected thereto is fixed between the upper and lower inner walls of the guide groove (702); a spring (704) is sleeved on the outer peripheral wall of the guide rod (703); two ejection grooves (705) are provided in the back plate (3); an elastic sheet (706) is fixed on the inner wall of the front side of the ejection groove (705); and a plurality of balls (707) are rotatably connected to the front side of the mounting plate (1).

2. The quick-release waterproof membrane switch according to claim 1, characterized in that: The fixing mechanism comprises an annular plate (801) fixed to the front of the back plate (3); the top and bottom surfaces of the waterproof membrane switch housing (4) are slidably connected to disassembly rods (802); the opposite ends of the two disassembly rods (802) are fixed to connecting plates (803); the opposite sides of the two connecting plates (803) are fixed to tension springs (804) with one end fixed to the inner wall of the waterproof membrane switch housing (4); the opposite sides of the two connecting plates (803) are fixed to limiting blocks (805); and the top and bottom surfaces of the annular plate (801) are provided with limiting holes (806).

3. The quick-release waterproof membrane switch according to claim 1, characterized in that: L-shaped mounting ear plates are fixed on both left and right sides of the mounting plate (1); the waterproof membrane switch housing (4) is a rectangular shell with a hollow interior and an open back; the mesh plate (6) is clearance-matched with the mounting groove (5).

4. The quick-release waterproof membrane switch according to claim 1, characterized in that: The front sides of the mounting plate (1) and the back plate (3) are both provided with heat dissipation holes (9), and the two heat dissipation holes (9) are arranged front to back and face each other; the heat dissipation hole (9) on the back plate (3) is located in front of the mounting groove (5), and the two are connected in a T-shaped structure.

5. The quick-release waterproof membrane switch according to claim 1, characterized in that: The guide groove (702) is used for the guide block (701) to slide up and down inside the guide groove (702), the spring (704) is arranged below the guide block (701), the ejection groove (705) is located at the front side of the mounting groove (5) and is connected thereto, the plurality of balls (707) are evenly divided into two groups, left and right, and the plurality of balls (707) in each group are arranged up and down.

6. The quick-release waterproof membrane switch according to claim 2, characterized in that: The outer peripheral wall of the annular plate (801) abuts against the inner peripheral wall of the waterproof membrane switch housing (4); the top surface and the bottom surface of the waterproof membrane switch housing (4) are provided with guide holes for the disassembly rod (802) to vertically penetrate and to be gap-matched therewith; circular pressing plates are fixed to the opposite ends of the two disassembly rods (802).

7. The quick-release waterproof membrane switch according to claim 2, characterized in that: The tension spring (804) is sleeved on the outer peripheral wall of the disassembly rod (802), and the limit block (805) and the limit hole (806) are vertically opposed and the two are clearance-matched.

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