Membrane switch fault acquisition device

Abstract

The utility model discloses a membrane switch fault acquisition device, and relates to the field of membrane switch detection. A membrane switch fault acquisition device comprises a mounting rack, and further comprises a placement table fixedly mounted on the mounting rack and provided with a positioning groove used for limiting a membrane switch; the lifting plate is arranged right above the placing table; the driving mechanism is used for driving the lifting plate to lift and is mounted on the mounting frame; the mounting plate is arranged below the lifting plate; according to the utility model, when fault acquisition and detection are carried out on the membrane switch, all the buttons on the membrane switch can be pressed at one time, and sound generated by metal sheets in the buttons can be acquired and compared, so that fault acquisition can be rapidly completed; and the detection accuracy is greatly improved compared with that of manual work.

Description

Technical Field

[0001] The utility model belongs to the technical field of membrane switch detection, and in particular relates to a membrane switch fault collection device. Background Art

[0002] Membrane switch, also known as touch keyboard, adopts an overall sealed structure composed of multiple layers of plane. It is a new type of electronic component that integrates optics, mechanics and electricity by sealing key switches, panels, markings, symbol displays and linings together. It is a fundamental change in the appearance and structure of electronic products. It can replace the keys of conventional discrete components and perform the tasks of the operating system more reliably.

[0003] Membrane switches often use metal springs as conductive materials. When in use, the circuit is turned on by pressing the metal springs to deform. The degree of bulging of the produced metal springs may vary. After installation, if they extend too high beyond the panel surface, the outer panel membrane will press the switch after recovery and cannot be used. If they are too low, the switch will not be in place when pressed by hand and cannot work. Therefore, after the membrane switch is produced, it is necessary to perform a press test on it. The existing detection method often uses manual detection, but after a long period of manual detection, fatigue will occur, so there may be problems of missed detection, and the detection speed and detection accuracy may also be affected to a certain extent. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a membrane switch fault collection device which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a membrane switch fault collection device, including a mounting frame, and also including: a placing table, fixedly mounted on the mounting frame, and a positioning groove for limiting the membrane switch is opened on the placing table; a lifting plate, arranged directly above the placing table; a driving mechanism for driving the lifting plate to lift, installed on the mounting frame; a mounting plate, arranged below the lifting plate; two groups of T-bars, symmetrically fixedly connected to both sides of the upper end of the mounting plate, and the T-bars are slidably connected to the lifting plate; a plurality of push rods, equidistantly arranged on the mounting plate; a sound collector, fixedly mounted on the push rod; a processor with a display screen, installed on the lifting plate, and the processor and the sound collector are electrically connected.

[0006] Furthermore, the driving mechanism includes a motor, a screw rod, a first sprocket and a second sprocket, the motor is fixedly connected to the upper end of the mounting frame, the screw rod is symmetrically rotationally connected to both sides of the placing table, the upper end of the screw rod is rotationally connected to the mounting frame, the first sprocket is fixedly connected to the output end of the motor, the second sprocket is fixedly connected to the screw rod, the first sprocket and the two second sprockets are connected by a chain, and the two sides of the lifting plate are respectively threadedly connected to the screw rod on the same side.

[0007] In order to prevent the sound collector from being affected by the sound of the buttons nearby, further, two groups of tensioning springs are symmetrically fixedly connected to both sides of the upper end of the mounting plate, an extrusion plate is arranged above the mounting plate, the lower side of the extrusion plate is fixedly connected to the upper end of the tensioning spring, the push rod is vertically fixedly connected to the lower surface of the extrusion plate, a through hole for use with the push rod is opened on the mounting plate, a sound insulation tube is fixedly connected in the through hole, and the push rod is located in the sound insulation tube.

[0008] In order to reduce the downward pressure exerted by the sound insulation tube on the membrane switch, further, a sound insulation rubber ring is fixedly connected to the lower opening of the sound insulation tube.

[0009] In order to further seal and soundproof a single button of the membrane switch, a layer of soundproof rubber pad is fixedly connected to the lower surface of the extrusion plate.

[0010] In order to reduce the sound transmitted to the inside through the sound insulation tube body, a circle of sound insulation layer is fixedly connected to the inner wall of the sound insulation tube.

[0011] In order to facilitate the sound collector to be closer to the location where the sound is generated, so as to facilitate clearer collection of the sound generated by the membrane switch button, further, the sound collector is installed at a position close to the abutment head at the lower end of the push rod.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model uses the mounting frame, the placement table, the driving mechanism, the lifting plate, the mounting plate, the push rod, the sound collector, the processor and other components in coordination. When performing fault collection and detection on the membrane switch, all the buttons on the membrane switch can be pressed at one time, and the sounds generated by the metal sheets in the buttons can be collected and compared, so that the fault collection can be completed relatively quickly, and the detection accuracy is also greatly improved compared with manual detection.

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the attached picture:

[0015] Figure 1 This is a structural schematic diagram of a membrane switch fault collection device proposed by the utility model;

[0016] Figure 2 This is a structural schematic diagram of a mounting plate, an extrusion plate, a tension spring, a push rod, a sound insulation tube and a sound collector in a membrane switch fault collection device proposed by the utility model;

[0017] Figure 3 A membrane switch fault collection device proposed by the utility model Figure 2 Schematic diagram of the structure of part A.

[0018] In the figure: 1. mounting frame; 2. placing table; 3. motor; 301. screw rod; 302. first sprocket; 303. second sprocket; 4. lifting plate; 401. T-bar; 402. mounting plate; 5. processor; 6. sound insulation tube; 601. extrusion plate; 602. tension spring; 603. push rod; 604. sound collector; 605. sound insulation rubber ring; 606. sound insulation rubber pad; 607. sound insulation layer. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0020] Embodiment 1:

[0021] Reference Figure 1-Figure 3 A membrane switch fault collection device includes a mounting frame 1, and also includes: a placement table 2, fixedly mounted on the mounting frame 1, and a positioning groove for limiting the membrane switch is opened on the placement table 2; a lifting plate 4, arranged just above the placement table 2; a driving mechanism for driving the lifting plate 4 to rise and fall, installed on the mounting frame 1; a mounting plate 402, arranged below the lifting plate 4; two groups of T-shaped rods 401, symmetrically fixedly connected to both sides of the upper end of the mounting plate 402, and the T-shaped rods 401 are slidably connected to the lifting plate 4; a plurality of push rods 603, equidistantly arranged on the mounting plate 402; a sound collector 604, fixedly mounted on the push rod 603; a processor 5 with a display screen, installed on the lifting plate 4, and the processor 5 and the sound collector 604 are electrically connected.

[0022] The driving mechanism includes a motor 3, a screw rod 301, a first sprocket 302 and a second sprocket 303. The motor 3 is fixedly connected to the upper end of the mounting frame 1. The screw rod 301 is symmetrically rotatably connected to both sides of the placement table 2. The upper end of the screw rod 301 is rotatably connected to the mounting frame 1. The first sprocket 302 is fixedly connected to the output end of the motor 3. The second sprocket 303 is fixedly connected to the screw rod 301. The first sprocket 302 and the two second sprockets 303 are connected by a chain. The two sides of the lifting plate 4 are respectively threadedly connected to the screw rod 301 on the same side.

[0023] When the membrane switch is produced and the metal sheet in its button needs to be tested, first press the button on the qualified membrane switch to collect the sound emitted by the metal sheet in the button and record it in the processor 5. At this time, the membrane switch can be placed in the positioning groove of the placement table 2, and then the motor 3 can be started. The motor 3 can drive the first sprocket 302 to rotate, and the first sprocket 302 will drive the second sprocket 303 to rotate through the chain, and the second sprocket 303 will drive the screw rod 301 to rotate, and the screw rod 301 will drive the lifting plate 4 to move downward through the thread, and the lifting plate 4 will drive the push rod 603 to move downward through the mounting plate 402. When the push rod 603 is about to contact the button on the membrane switch, the sound collector 604 and the processor 5 can be started, so that when the push rod 603 presses the button on the membrane switch, the sound collector 604 and the processor 5 can be started. 04 can collect the sound emitted by the metal sheet in the button and transmit it to the processor 5. The processor 5 will compare the collected sound with the sound emitted by the qualified metal sheet. When the sounds of the two are roughly the same, it can be determined that the metal sheet in the button is qualified. When the sounds of the two are different, it means that the metal sheet in the button is faulty, so it can be quickly determined which button on the membrane switch has a metal sheet fault. The sound collector 604 in the device can use a common miniature sound sensor on the market, and it is a prior art, so no further elaboration will be made here. Compared with the prior art method of manually pressing the buttons on the membrane switch one by one and judging the fault through experience, the device can not only collect faults more quickly, but also the detection accuracy is greatly improved compared with manual detection.

[0024] Embodiment 2:

[0025] Reference Figure 1-Figure 3, a membrane switch fault collection device, which is basically the same as Example 1, and further: two groups of tension springs 602 are symmetrically fixedly connected to both sides of the upper end of the mounting plate 402, an extrusion plate 601 is arranged above the mounting plate 402, the lower side of the extrusion plate 601 is fixedly connected to the upper end of the tension spring 602, and a push rod 603 is vertically fixedly connected to the lower surface of the extrusion plate 601, and a through hole for use with the push rod 603 is opened on the mounting plate 402, and a sound insulation tube 6 is fixedly connected in the through hole, and the push rod 603 is located in the sound insulation tube 6. When the mounting plate 402 drives the push rod 603 to move downward, the sound insulation tube 6 will first contact with the push rod 603. When the membrane switch contacts, the mounting plate 402 stops moving down, and the lifting plate 4 continues to move down. When the lifting plate 4 contacts the extrusion plate 601, the extrusion plate 601 overcomes the elastic force of the tensioning spring 602 under the downward pressure of the lifting plate 4 and drives the push rod 603 to move down. Then the push rod 603 presses the button corresponding to the position on the membrane switch, and then the sound collector 604 can collect the sound generated when the button is pressed. By pressing and collecting inside the sound insulation tube 6, the accuracy of the sound collector 604 can be improved, and the sound collector 604 can be prevented from being affected by the sound of the buttons next to it.

[0026] A circle of sound insulation rubber ring 605 is fixedly connected to the lower opening of the sound insulation tube 6. By arranging the sound insulation rubber ring 605 at the lower end of the sound insulation tube 6, not only the downward pressure exerted by the sound insulation tube 6 on the membrane switch can be reduced, but also the inside of the sound insulation tube 6 can be better soundproofed, thereby further improving the clarity of the button sound collection by the sound collector 604.

[0027] A layer of sound insulation rubber pad 606 is fixedly connected to the lower surface of the extrusion plate 601. When the extrusion plate 601 contacts the sound insulation tube 6, the sound insulation rubber pad 606 can be sealed with the upper opening of the sound insulation tube 6, thereby facilitating further sealing and sound insulation of a single button of the membrane switch, and further improving the clarity of the button sound collection by the sound collector 604.

[0028] A circle of sound insulation layer 607 is fixedly connected to the inner wall of the sound insulation tube 6. The sound insulation layer 607 can reduce the sound transmitted to the inside through the sound insulation tube 6, thereby further improving the sound insulation effect.

[0029] The sound collector 604 is installed at the lower end of the top rod 603 near the contact head. By installing the sound collector 604 at the lower end of the top rod 603 near the contact head, the sound collector 604 can be closer to the location where the sound is generated, thereby facilitating a clearer collection of the sound generated by the membrane switch button, so that the processor 5 can more accurately analyze whether the button has a fault.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A membrane switch fault collection device, comprising a mounting frame (1), characterized in that: Also includes: A placement table (2) is fixedly mounted on the mounting frame (1), and a positioning groove for limiting the position of the membrane switch is provided on the placement table (2); A lifting plate (4) is arranged directly above the placing platform (2); A driving mechanism for driving the lifting plate (4) to move up and down, mounted on the mounting frame (1); A mounting plate (402) disposed below the lifting plate (4); Two groups of T-shaped rods (401) are symmetrically fixedly connected to both sides of the upper end of the mounting plate (402), and the T-shaped rods (401) are slidably connected to the lifting plate (4); A plurality of push rods (603) are arranged at equal intervals on the mounting plate (402); A sound collector (604) is fixedly mounted on the top rod (603); A processor (5) with a display screen is installed on the lifting plate (4), and the processor (5) is electrically connected to the sound collector (604).

2. A membrane switch fault collection device according to claim 1, characterized in that: The driving mechanism comprises a motor (3), a screw rod (301), a first sprocket (302) and a second sprocket (303); the motor (3) is fixedly connected to the upper end of the mounting frame (1); the screw rod (301) is symmetrically rotatably connected to the two sides of the placement platform (2); the upper end of the screw rod (301) is rotatably connected to the mounting frame (1); the first sprocket (302) is fixedly connected to the output end of the motor (3); the second sprocket (303) is fixedly connected to the screw rod (301); the first sprocket (302) and the two second sprockets (303) are connected by a chain; and the two sides of the lifting plate (4) are respectively threadedly connected to the screw rod (301) on the same side.

3. A membrane switch fault collection device according to claim 1, characterized in that: Two groups of tensioning springs (602) are symmetrically fixedly connected to both sides of the upper end of the mounting plate (402); an extrusion plate (601) is arranged above the mounting plate (402); the lower side of the extrusion plate (601) is fixedly connected to the upper end of the tensioning spring (602); the push rod (603) is vertically fixedly connected to the lower surface of the extrusion plate (601); a through hole for use with the push rod (603) is opened on the mounting plate (402); a sound insulation tube (6) is fixedly connected in the through hole; and the push rod (603) is located in the sound insulation tube (6).

4. A membrane switch fault collection device according to claim 3, characterized in that: A sound insulation rubber ring (605) is fixedly connected to the lower opening of the sound insulation cylinder (6).

5. A membrane switch fault collection device according to claim 4, characterized in that: A layer of sound-insulating rubber pad (606) is fixedly connected to the lower surface of the extrusion plate (601).

6. A membrane switch fault collection device according to claim 5, characterized in that: A circle of sound insulation layer (607) is fixedly connected to the inner wall of the sound insulation cylinder (6).

7. A membrane switch fault collection device according to claim 1 or 5, characterized in that: The sound collector (604) is installed at a position close to the abutment head at the lower end of the top rod (603).

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