Open short circuit function testing device of touchpad
By using automated feeding and fixing devices, the fatigue and detection accuracy problems caused by manual material placement in existing technologies have been solved, enabling efficient and accurate detection of the touch panel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU NEW VISION OPTOELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-14
Smart Images

Figure CN224500901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of touchpad testing technology, specifically a device for testing the open and short circuit functions of a touchpad. Background Technology
[0002] Touchpads are common input devices for laptops, tablets, and other devices. They use capacitive sensing, pressure detection, and other technologies to convert finger movements and clicks into electronic signals, enabling cursor control and interaction. They support gesture operations such as single-finger movement, two-finger scrolling, and three-finger application switching. Some high-end models also integrate pressure sensing and haptic feedback functions, replacing the traditional mouse to meet the lightweight interaction needs of portable devices.
[0003] In most existing touchpad open / short circuit testing devices, the material is placed on the testing device manually for testing. However, when workers are testing the touchpad for a long time, mechanically performing the same action will cause them to become physically and mentally fatigued. At the same time, they will not be able to accurately place the touchpad at the bottom of the testing head, so they need to press it multiple times to adjust its position before testing. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a test device for the open and short circuit functions of a touch panel, which has the advantages of automatic feeding and prevention of deviation, thus solving the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: a touch panel open / short circuit function testing device, comprising a base, a support plate and a feeding box fixedly installed on the top of the base, a testing host fixedly installed on the outer wall of the support plate, a control center and an extension shell fixedly installed on the outer wall of the base, an electric telescopic rod fixedly installed on the top of the support plate, a probe fixedly installed on the telescopic end of the electric telescopic rod, an infrared sensing device fixedly installed on the outer wall of the probe, a locking block fixedly installed on the outer wall of the feeding box, a push plate slidably connected to the inner wall of the base, a fixing frame and a sealing cover slidably connected to the inner wall of the feeding box, a threaded column fixedly installed on the top of the fixing frame, and a placement groove opened on the outer wall of the fixing frame, the extension... A limit rod is fixedly installed on the inner wall of the outer shell, a soft pad is fixedly installed on the inner wall of the base, a sliding frame is slidably connected to the inner wall of the extended outer shell, a cylinder is fixedly installed on the outer wall of the extended outer shell, a push rod is fixedly installed on the telescopic end of the cylinder, a motor is fixedly installed on the top of the feeding box, a gear is rotatably connected to the inner wall of the feeding box, a push plate is slidably connected to the inner wall of the feeding box, a limit groove is fixedly installed on the inner wall of the base, a drive assembly is fixedly installed on the outer wall of the base, a transmission wheel is fixedly installed on the output shaft of the drive assembly, a transmission belt is rotatably sleeved on the outer wall of the transmission wheel, a sliding block is fixedly installed on the outer wall of the push plate, a fixing rod is fixedly installed on the outer wall of the transmission belt, and a connecting column is fixedly installed on the outer wall of the fixing rod.
[0006] As a preferred technical solution of this utility model: the shape of the fixing frame is adapted to the shape of the inner wall of the feeding box, and the shape of the inner wall of the placement groove is adapted to the shape of the push plate.
[0007] As a preferred technical solution of this utility model: the number of gears is two, and the two gears are respectively located on the outer wall of the threaded column and the output shaft of the motor. The two gears mesh with each other, and the gear located on the outer wall of the threaded column is threadedly connected to the threaded column.
[0008] As a preferred technical solution of this utility model: the thickness of the push plate is adapted to the inner wall of the base, and the push plate is in contact with the inner wall of the base.
[0009] As a preferred technical solution of this utility model: the number of the limiting rods is two, and the two limiting rods pass through the side of the sliding frame near the cylinder.
[0010] As a preferred technical solution of this utility model: the number of soft pads is two, and the two soft pads are respectively set on the inner wall of the base and the side of the sliding frame away from the cylinder.
[0011] As a preferred technical solution of this utility model: the number of transmission wheels is two, and the two transmission wheels are symmetrically arranged on both sides of the inner wall of the transmission belt.
[0012] As a preferred technical solution of this utility model: the connecting column is located on the inner wall of the sliding block, and the length of the fixing rod is the same as the radius of the transmission wheel.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The touchpad's open / short circuit function test device activates the drive assembly, causing the drive assembly to rotate the transmission wheel, which in turn rotates the external transmission belt. This causes the transmission belt to rotate the two internal transmission wheels simultaneously, which in turn causes the transmission belt to move the fixed rod, which in turn moves the connecting column, which in turn moves the sliding block and push plate. When the fixed rod moves to the transmission wheel near the drive assembly, the drive assembly causes the transmission wheel and transmission belt to rotate in the opposite direction, thereby resetting the fixed rod, sliding block, and push plate, and then waiting for the next touchpad to move to the outside before pushing it out.
[0015] 2. The open / short circuit function test device for the touch panel uses an infrared sensor to send an electrical signal to the control center when the touch panel is detected at the bottom. This causes the control center to start the cylinder, which in turn moves the push rod, which in turn moves the sliding frame. The sliding frame then moves the soft pad on its outside, pushing the touch panel towards the soft pad on the inner wall of the base. This fixes the position of the touch panel in place, ensuring that the probe does not separate from the touch panel after being pressed down. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the extended outer shell of this utility model;
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the feeding box of this utility model;
[0019] Figure 4 This is a schematic diagram of the gear structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the transmission wheel structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the fixing rod structure of this utility model;
[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of the sliding block of this utility model.
[0023] In the diagram: 1. Base; 2. Support plate; 3. Detection host; 4. Control center; 5. Extension shell; 6. Feed box; 7. Electric telescopic rod; 8. Detector head; 9. Infrared sensor; 10. Limiting rod; 11. Soft pad; 12. Sliding frame; 13. Cylinder; 14. Push rod; 15. Motor; 16. Placement slot; 17. Gear; 18. Threaded column; 19. Fixing frame; 20. Sealing cover; 21. Locking block; 22. Push plate; 23. Sliding block; 24. Drive assembly; 25. Transmission wheel; 26. Transmission belt; 27. Fixing rod; 28. Connecting column; 29. Limiting slot. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1 - Figure 7 A touchpad open / short circuit function testing device includes a base 1. A support plate 2 and a feeding box 6 are fixedly installed on the top of the base 1. A detection host 3 is fixedly installed on the outer wall of the support plate 2. A control center 4 and an extension shell 5 are fixedly installed on the outer wall of the base 1. An electric telescopic rod 7 is fixedly installed on the top of the support plate 2. A probe 8 is fixedly installed on the telescopic end of the electric telescopic rod 7. An infrared sensor 9 is fixedly installed on the outer wall of the probe 8. A locking block 21 is fixedly installed on the outer wall of the feeding box 6. A push plate 22 is slidably connected to the inner wall of the base 1. A fixing frame 19 and a sealing cover 20 are slidably connected to the inner wall of the feeding box 6. A threaded post 18 is fixedly installed on the top of the fixing frame 19. A placement groove 16 is opened on the outer wall of the fixing frame 19. A limiter is fixedly installed on the inner wall of the extension shell 5. A soft pad 11 is fixedly installed on the inner wall of the rod 10 and the base 1. A sliding frame 12 is slidably connected to the inner wall of the extended outer shell 5. A cylinder 13 is fixedly installed on the outer wall of the extended outer shell 5. A push rod 14 is fixedly installed on the telescopic end of the cylinder 13. A motor 15 is fixedly installed on the top of the feeding box 6. A gear 17 is rotatably connected to the inner wall of the feeding box 6. A push plate 22 is slidably connected to the inner wall of the feeding box 6. A limit groove 29 is fixedly installed on the inner wall of the base 1. A drive assembly 24 is fixedly installed on the outer wall of the base 1. A transmission wheel 25 is fixedly installed on the output shaft of the drive assembly 24. A transmission belt 26 is rotatably sleeved on the outer wall of the transmission wheel 25. A sliding block 23 is fixedly installed on the outer wall of the push plate 22. A fixing rod 27 is fixedly installed on the outer wall of the transmission belt 26. A connecting column 28 is fixedly installed on the outer wall of the fixing rod 27.
[0026] In the above structure, the electric telescopic rod 7, infrared sensor 9, cylinder 13, drive assembly 24 and control center 4 are electrically connected, so that the control center 4 can adjust the start time of the electric telescopic rod 7, infrared sensor 9, cylinder 13 and drive assembly 24, so that the user can adjust it according to the actual use situation.
[0027] In a preferred embodiment, the shape of the fixing frame 19 is adapted to the inner wall shape of the feeding box 6, and the inner wall shape of the placement groove 16 is adapted to the shape of the push plate 22.
[0028] In the above structure, the fixing frame 19 is attached to the inner wall of the feeding box 6, so that the fixing frame 19 is limited by the inner wall of the feeding box 6 when it moves, thus preventing the fixing frame 19 from tilting when it moves. At the same time, the matching of the placement groove 16 and the push plate 22 allows the push plate 22 to enter the inner wall of the placement groove 16 and push the touch panel inside the placement groove 16 outward.
[0029] In a preferred embodiment, there are two gears 17, and the two gears 17 are located on the outer wall of the threaded column 18 and the output shaft of the motor 15, respectively. The two gears 17 mesh with each other, and the gear 17 located on the outer wall of the threaded column 18 is threadedly connected to the threaded column 18.
[0030] In the above structure, the motor 15 is started, which in turn drives the gear 17 connected to its output shaft to rotate. Then, through the meshing of the two gears 17, the gear 17 outside the threaded column 18 rotates. The gear 17 outside the threaded column 18 drives the threaded column 18 to move through the threaded connection with the threaded column 18. This causes the threaded column 18 to drive the fixed frame 19 to move on the inner wall of the feeding box 6.
[0031] In a preferred embodiment, the push plate 22 is adapted to the inner wall thickness of the base 1, and the push plate 22 is in contact with the inner wall of the base 1.
[0032] In the above structure, the push plate 22 is attached to the inner wall of the base 1, so that the push plate 22 is limited by the base 1 when it moves, and thus the push plate 22 will not tilt when it moves, so that it is always in contact with the inner wall of the base 1.
[0033] In a preferred embodiment, there are two limiting rods 10, and the two limiting rods 10 pass through the side of the sliding frame 12 near the cylinder 13.
[0034] In the above structure, the sliding frame 12 is penetrated by two limiting rods 10, so that the sliding frame 12 can only slide on the outer wall of the two limiting rods 10 when it moves, thereby preventing the sliding frame 12 from tilting when it moves.
[0035] In a preferred embodiment, there are two pads 11, and the two pads 11 are respectively disposed on the inner wall of the base 1 and the side of the sliding frame 12 away from the cylinder 13.
[0036] In the above structure, when the sliding frame 12 moves, it causes the outer soft pad 11 to move towards the inner soft pad 11 of the base 1, thereby causing the outer soft pad 11 of the sliding frame 12 to push the touch panel, so that the two soft pads 11 clamp the touch panel, thereby fixing the touch panel.
[0037] In a preferred embodiment, there are two drive wheels 25, which are symmetrically arranged on both sides of the inner wall of the drive belt 26. The two drive wheels 25 are located on the inner wall of the feed box 6, and the drive wheel 25 away from the drive assembly 24 is rotatably connected to the inner wall of the feed box 6.
[0038] In the above structure, the activation of the drive component 24 causes the drive component 24 to drive the transmission wheel 25 to rotate, which in turn causes the transmission wheel 25 to drive the external transmission belt 26 to rotate, which in turn causes the transmission belt 26 to drive the two internal transmission wheels 25 to rotate simultaneously.
[0039] In a preferred embodiment: the connecting post 28 is located on the inner wall of the sliding block 23, and the length of the fixing rod 27 is the same as the radius of the transmission wheel 25, and the connecting post 28 and the sliding block 23 are rotatably connected.
[0040] In the above structure, the transmission belt 26 drives the fixed rod 27 to move when it rotates, which in turn causes the fixed rod 27 to move the connecting column 28, which in turn causes the sliding block 23 and the push plate 22 to move. When the transmission belt 26 drives the fixed rod 27 and the connecting column to the transmission wheel 25 located on the outer wall of the output shaft of the drive assembly 24, the drive assembly 24 rotates in the opposite direction, which in turn drives the transmission belt 26 to rotate in the opposite direction, causing the sliding block 23 and the push plate 22 to reset. Through the continuous transmission of the drive assembly 24, the transmission wheel 25 and the transmission belt 26, the sliding block 23 and the push plate 22 are driven to reciprocate.
[0041] Working Principle: When using the equipment, the sealing cover 20 is opened, so that the inside of the feeding box 6 is no longer sealed. At this time, the touch panel is placed on the inner wall of the placement slot 16. The motor 15 is started, which drives the gear 17 connected to its output shaft to rotate. Through the meshing of the two gears 17, the gear 17 outside the threaded column 18 rotates. The gear 17 outside the threaded column 18 moves the threaded column 18 through the threaded connection with the threaded column 18. The threaded column 18 moves the fixed frame 19 on the inner wall of the feeding box 6, so that the placement slot 16 moves the touch panel inside to the outside of the push plate 22. At this time, the drive assembly 24 is started, which drives the transmission wheel 25 to rotate. The transmission wheel 25 drives the external transmission belt 26 to rotate. The transmission belt 26 drives the two internal transmission wheels 25 to rotate simultaneously. The transmission wheel 25 drives the transmission belt 26 to rotate, which in turn drives the fixed rod 27 and the connecting column to the outside of the push plate 22. When the material reaches the transmission wheel 25 located on the outer wall of the output shaft of the drive assembly 24, the drive assembly 24 rotates in the opposite direction, thereby driving the transmission belt 26 to rotate in the opposite direction, causing the sliding block 23 and the push plate 22 to reset. Through the continuous transmission of the drive assembly 24, the transmission wheel 25 and the transmission belt 26, the sliding block 23 and the push plate 22 are driven to reciprocate, so that the sliding block 23 drives the push plate 22 to push the material to the bottom of the infrared sensing device 9. When the infrared sensing device 9 detects that the material at the bottom has arrived, it sends an electrical signal to the control center 4, causing the control center 4 to start the cylinder 13. The cylinder 13 drives the push rod 14 to move, which in turn drives the sliding frame 12 to move, which in turn drives the soft pad 11 on its outside to move, so that the two soft pads 11 clamp the touch panel, thereby fixing the touch panel. At this time, the detection head 8 is pushed down by the activation of the electric telescopic rod 7. The detection head 8 detects the touch panel. After the detection is completed, the structure is reset, waiting for the next touch panel to arrive at the work station.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A test device for the open / short circuit function of a touchpad, comprising a base (1), characterized in that: The base (1) is fixedly mounted with a support plate (2) and a feeding box (6) on its top. The support plate (2) is fixedly mounted with a detection host (3). The base (1) is fixedly mounted with a control center (4) and an extension shell (5) on its outer wall. The support plate (2) is fixedly mounted with an electric telescopic rod (7). The telescopic end of the electric telescopic rod (7) is fixedly mounted with a probe (8). The probe (8) is fixedly mounted with an infrared sensing device (9) on its outer wall. The feeding box (6) is fixedly mounted with a locking block (21). The base (1) is slidably connected with a push plate (22). The feeding box (6) is slidably connected with a fixing frame (19) and a sealing cover (20). The fixing frame (19) is fixedly mounted with a threaded column (18) on its top. The fixing frame (19) is provided with a placement groove (16) on its outer wall. The extension shell (5) is fixedly mounted with a limit rod (10) on its inner wall. A soft pad (11) is fixedly installed on the inner wall of the base (1). A sliding frame (12) is slidably connected to the inner wall of the extended shell (5). A cylinder (13) is fixedly installed on the outer wall of the extended shell (5). A push rod (14) is fixedly installed on the telescopic end of the cylinder (13). A motor (15) is fixedly installed on the top of the feeding box (6). A gear (17) is rotatably connected to the inner wall of the feeding box (6). A limit groove (29) is fixedly installed on the inner wall of the base (1). A drive assembly (24) is fixedly installed on the outer wall of the base (1). A transmission wheel (25) is fixedly installed on the output shaft of the drive assembly (24). A transmission belt (26) is rotatably sleeved on the outer wall of the transmission wheel (25). A sliding block (23) is fixedly installed on the outer wall of the push plate (22). A fixing rod (27) is fixedly installed on the outer wall of the transmission belt (26). A connecting column (28) is fixedly installed on the outer wall of the fixing rod (27).
2. The touchpad open / short circuit function testing device according to claim 1, characterized in that: The shape of the fixed frame (19) is adapted to the inner wall shape of the feeding box (6), and the inner wall shape of the placement groove (16) is adapted to the shape of the push plate (22).
3. The touchpad open / short circuit function testing device according to claim 1, characterized in that: The number of gears (17) is two, and the two gears (17) are located on the outer wall of the threaded column (18) and the output shaft of the motor (15) respectively. The two gears (17) mesh with each other, and the gear (17) located on the outer wall of the threaded column (18) is threadedly connected to the threaded column (18).
4. The touchpad open / short circuit function testing device according to claim 1, characterized in that: The push plate (22) is adapted to the inner wall thickness of the base (1), and the push plate (22) is in contact with the inner wall of the base (1).
5. The touchpad open / short circuit function testing device according to claim 1, characterized in that: The number of the limiting rods (10) is two, and the two limiting rods (10) pass through the side of the sliding frame (12) near the cylinder (13).
6. The touchpad open / short circuit function testing device according to claim 1, characterized in that: The number of the soft pads (11) is two, and the two soft pads (11) are respectively set on the inner wall of the base (1) and the side of the sliding frame (12) away from the cylinder (13).
7. The touchpad open / short circuit function testing device according to claim 1, characterized in that: The number of transmission wheels (25) is two, and the two transmission wheels (25) are symmetrically arranged on both sides of the inner wall of the transmission belt (26).
8. The touchpad open / short circuit function testing device according to claim 1, characterized in that: The connecting column (28) is located on the inner wall of the sliding block (23), and the length of the fixing rod (27) is the same as the radius of the transmission wheel (25).