Carpet static testing device

Abstract

The invention provides a carpet electrostatic testing device, and relates to the technical field of electrostatic measurement, a testing device body comprises a testing table, a mounting mechanism, a motor and a simulation mechanism, a front end plate is welded to the front side of the testing table, a shell part of the motor is in threaded connection with the surface of the front end plate, a driving shaft is inserted into the output end of the motor, and the driving shaft is in threaded connection with the front end plate. The driving shaft penetrates through the middle of the mounting mechanism, a to-be-tested sample is wound on the surface of the mounting mechanism, a clamp is arranged on the inner side of the mounting mechanism, and the clamp comprises two clamping plates. The reliability and accuracy of the test result are improved, the test efficiency is improved, the occupied volume is reduced, the test process is simpler, the installation process of the to-be-tested sample is simple and convenient, and the probability that the to-be-tested sample slips in the test process is reduced. And test items are expanded.

Description

Technical Field

[0001] This invention relates to the field of electrostatic measurement technology, specifically to a carpet electrostatic testing device. Background Technology

[0002] Carpets have various applications, but in industries such as chemical, electronics, and petroleum, static electricity buildup can lead to serious safety accidents such as fires or explosions. Static electricity testing ensures that carpets do not generate excessive static electricity during installation and use, thus avoiding these safety hazards. Furthermore, static electricity in carpets during daily use can cause dust accumulation and discomfort. Testing the anti-static properties of carpets improves the user experience and ensures compliance with relevant standards.

[0003] Current electrostatic testing of carpets requires simulating the static electricity generated by human walking on the carpet to test its electrostatic performance. During the test, the static charge data of the floor covering is obtained through mechanical simulation of walking. However, this approach requires a large testing device, occupies a large space, and requires prolonged manual walking to simulate the static charge, resulting in a long testing cycle and low efficiency. While a turntable-type testing structure effectively reduces the size and eliminates the need for manual walking simulation, its simulation relies on rotational friction. Since the friction generated when walking on a carpet is periodic, and stepping involves both downward and forward force application, conventional rotational simulation can only simulate pressure in one direction, which differs from the actual walking process. Therefore, the final test results cannot accurately reflect the electrostatic situation during subsequent actual use. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a carpet electrostatic testing device to solve the problems mentioned in the background. The present invention can more accurately simulate the electrostatic state generated when stepping on a carpet surface during actual use, improving the reliability and accuracy of test results, increasing testing efficiency, reducing the volume occupied, and simplifying the installation process of the test sample, thereby reducing the probability of the test sample slipping during the test.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a carpet electrostatic testing device, comprising a testing device body, the testing device body including a testing platform, a mounting mechanism, a motor, and a simulation mechanism. A front end plate is welded to the front side of the testing platform. The outer casing of the motor is screwed onto the surface of the front end plate. A drive shaft is inserted into the output end of the motor and passes through the middle of the mounting mechanism. A test sample is wound around the surface of the mounting mechanism. A clamp is provided on the inner side of the mounting mechanism, the clamp including two clamping plates. Both ends of the test sample are embedded into the inner side of the clamping plates. A rear end plate is welded to the rear of the testing platform. A top plate is integrally formed on the top of the rear end plate. A simulation mechanism is installed at the bottom of the top plate. The simulation mechanism includes a pressing component and a friction mechanism. The pressing component rests against the upper part of the friction mechanism, and the bottom of the friction mechanism is used to press against the surface of the test sample.

[0006] Furthermore, the mounting mechanism includes a rotating frame and a center plate. The center plate is integrally formed on the inner side of the rotating frame. A driving hole is provided in the middle of the center plate. A pressure-increasing groove and a clamping groove are provided inside the rotating frame.

[0007] Furthermore, a pressure boosting column is inserted inside the pressure boosting groove, and a through hole is opened inside the pressure boosting column. A linkage shaft is inserted inside the through hole, and a plug-in plate is integrally formed at the end of the linkage shaft. A docking channel is embedded at one end of the plug-in plate.

[0008] Furthermore, a lead screw is inserted inside the docking channel, and a threaded hole is opened on the surface of the drive shaft. The end of the lead screw is embedded in the threaded hole on the surface of the drive shaft. The test sample is embedded inside the pressure groove and is sleeved on the surface of the pressure column.

[0009] Furthermore, a notch is provided at the edge of the clamping groove, and the test sample is inserted into the interior of the clamping groove through the notch. Both ends of the surface of the clamping plate are fitted with compression bolts, which are used to control the two clamping plates to clamp and fix the test sample on the inner side.

[0010] Furthermore, the pressing assembly includes a hydraulic rod, a pressing plate, and an arc-shaped plate. A pressing bracket is inserted into the bottom side of the arc-shaped plate, and a pressing guide roller is sleeved at the bottom end of the pressing bracket. The top of the hydraulic rod is screwed to the bottom of the top plate, and a telescopic groove is formed on the inner side of the arc-shaped plate.

[0011] Furthermore, a pressing plate is screwed to the bottom of the hydraulic rod, and the bottom of the pressing plate is attached to the top of the arc-shaped plate. A lifting hole is opened inside the rear end plate, and a lifting column is integrally formed at the rear end of the arc-shaped plate. An electrode probe is installed at the rear end of one of the lifting columns.

[0012] Furthermore, the friction mechanism includes a friction plate, a plug-in plate, and a telescopic spring. The top of the friction plate is integrally formed with a transmission plate, and the side of the transmission plate is integrally formed with a plug-in plate.

[0013] Furthermore, a telescopic spring is welded to one end of the plug plate, and a limiting protrusion is integrally formed at the end of the telescopic spring. The telescopic groove, the plug plate, and the telescopic spring are all arc-shaped, and the end of the plug plate and the entire telescopic spring are embedded inside the telescopic groove.

[0014] Furthermore, the bottom of the friction plate is used to press against the surface of the sample to be tested, and the pressing assembly applies pressure vertically to the surface of the friction plate through the pressing guide roller.

[0015] The beneficial effects of this invention are: This carpet electrostatic testing device uses an installation mechanism to wind and install the test sample. The simulation mechanism above then simulates the effect of stepping on the sample, more accurately simulating the electrostatic state generated when stepping on a carpet surface during actual use, thus improving the reliability and accuracy of the test results. It can also be used to test electrostatic generation under static friction with only downward vertical pressure or under sliding friction conditions, expanding the range of test items.

[0016] This carpet electrostatic testing device uses a motor-controlled mounting mechanism for rotation, while a hydraulic rod at the top provides a periodic lifting and lowering pressure effect. The two motion structures are independently controlled, allowing for flexible control of the area the simulation mechanism presses onto the test sample surface, resulting in a more uniform simulated footsteps. This also improves testing efficiency and reduces the device's footprint.

[0017] The carpet electrostatic testing device features clamps and a symmetrical pull-lock structure on the surface of the mounting mechanism, making the installation process of the test sample simple and convenient, reducing the probability of slippage during testing, and also enabling connection with the drive shaft to provide transmission. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of a carpet electrostatic testing device according to the present invention; Figure 2 This is a schematic diagram of the installation mechanism of the present invention; Figure 3 This is a schematic diagram of the pressurization column portion of the present invention; Figure 4 for Figure 2 Enlarged view of region A in the middle; Figure 5 This is a schematic diagram of the structure of the simulation mechanism part of the present invention; Figure 6This is an exploded view of the pressing component of the present invention; Figure 7 This is a schematic diagram of the friction mechanism of the present invention; In the diagram: 1. Test bench; 2. Front end plate; 3. Rear end plate; 4. Motor; 5. Drive shaft; 6. Mounting mechanism; 7. Test sample; 8. Simulation mechanism; 9. Rotating frame; 10. Center plate; 11. Pressure boosting groove; 12. Drive hole; 13. Pressure boosting column; 14. Through hole; 15. Connecting plate; 16. Linkage shaft; 17. Docking channel; 18. Lead screw; 19. Clamping groove; 20. Clamping plate; 21. Extrusion bolt; 22. Lifting hole; 23. Top plate; 24. Hydraulic rod; 25. Pressing assembly; 26. Friction mechanism; 27. Pressing plate; 28. Arc plate; 29. ​​Lifting column; 30. Telescopic groove; 31. Pressing bracket; 32. Pressing guide roller; 33. Friction plate; 34. Transmission plate; 35. Connecting plate; 36. Telescopic spring; 37. Limiting protrusion; 38. Electrode probe. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] Please see Figures 1 to 7 The present invention provides the following technical solution: a carpet electrostatic testing device, comprising a testing device body, the testing device body including a testing platform 1, a mounting mechanism 6, a motor 4 and a simulation mechanism 8, a front end plate 2 welded to the front side of the testing platform 1, the outer shell of the motor 4 screwed onto the surface of the front end plate 2, a drive shaft 5 inserted into the output end of the motor 4, the drive shaft 5 passing through the middle of the mounting mechanism 6, a test sample 7 wound around the surface of the mounting mechanism 6, a clamp provided on the inner side of the mounting mechanism 6, the clamp including two clamping plates 20, both ends of the test sample 7 being embedded into the inner side of the clamping plates 20, a rear end plate 3 welded to the rear of the testing platform 1, a top plate 23 integrally formed on the top of the rear end plate 3, a simulation mechanism 8 installed at the bottom of the top plate 23, the simulation mechanism 8 including a pressing component 25 and a friction mechanism 26, the pressing component 25 abutting against the top of the friction mechanism 26, and the bottom of the friction mechanism 26 being used to press against the surface of the test sample 7. The electrostatic testing device detects the static electricity generated on the test sample 7 after prolonged stepping by simulating the action of a person stepping on it.

[0021] In use, the carpet to be tested is first cut into strips. Then, the sample 7 to be tested is rolled up on the surface of the mounting mechanism 6, and the sample 7 is pulled and locked using the inner clamp 20 or the pressure column 13 to complete the installation. During testing, the motor 4 at the front end is started to rotate the sample 7. At the same time, the simulation mechanism 8 at the top is used to simulate the situation of a person stepping on the surface of the sample 7, producing regular or irregular stepping states. During this movement, the current generated during the simulation is detected in real time by the electrode probe 38 and signal line behind the simulation mechanism 8, thereby determining the static electricity generation of the sample 7.

[0022] In this embodiment, the mounting mechanism 6 includes a rotating frame 9 and a center plate 10. The center plate 10 is integrally formed inside the rotating frame 9, and a driving hole 12 is formed in the middle of the center plate 10. The rotating frame 9 has a pressure-boosting groove 11 and a clamping groove 19 inside. A pressure-boosting column 13 is inserted into the pressure-boosting groove 11, and a through hole 14 is formed inside the pressure-boosting column 13. A linkage shaft 16 is inserted into the through hole 14, and a plug-in plate 35 is integrally formed at the end of the linkage shaft 16. A docking channel 17 is embedded at one end of the plug-in plate 35. A lead screw 18 is inserted into the docking channel 17. A threaded hole is formed on the surface of the driving shaft 5, and the end of the lead screw 18 is embedded in the threaded hole on the surface of the driving shaft 5. The test sample 7 is embedded inside the pressure-boosting groove 11 and is sleeved on the surface of the pressure-boosting column 13. A notch is provided at the edge of the clamping groove 19, and the test sample 7 is inserted into the clamping groove 19 through the notch. Both ends of the clamping plate 20 are fitted with clamping bolts 21, which are used to control the two clamping plates 20 to clamp and fix the test sample 7 on the inner side. The installation mechanism 6 has clamps and a symmetrical pull-locking structure, making the installation process of the test sample 7 simple and convenient, reducing the probability of slippage during testing, and also enabling connection with the drive shaft 5 to provide a transmission effect.

[0023] Specifically, during installation, the test sample 7 is first cut. In the initial state, the linkage shaft 16 and the booster column 13 are separated. The test sample 7 is folded and inserted into the booster groove 11, and then... Figure 2As shown, the pressure boosting column 13 is also embedded inside the pressure boosting groove 11, ensuring that the test sample 7 passes around the outside of the pressure boosting column 13. Both pressure boosting columns 13 are inserted in the same way. Then, both ends of the test sample 7 are inserted into the clamping groove 19 at the bottom. By using the compression bolts 21 at both ends of the rotating clamping plate 20, the clamping plate 20 is brought closer to the stacked ends of the test sample 7. Finally, the overlapping areas of the two ends of the test sample 7 are squeezed and fixed. Then, the linkage shaft 16 is embedded into the through hole 14. At this time, one end of the lead screw 18 is completely embedded into the docking channel 17. By manually rotating the lead screw 18, the end of the lead screw 18 is embedded into the threaded hole on the drive shaft 5. As the lead screw 18 is rotated, the end is pulled by the protruding structure inside the docking channel 17 to move the plug plate 35. The pressure boosting column 13 is pulled by the linkage shaft 16, thereby pulling the test sample 7 inward, achieving the effect of tightening the entire test sample 7. After starting the motor 4, the center plate 10 is driven to rotate through the drive shaft 5 and the key from the inside of the drive hole 12. At the same time, the booster columns 13 at both ends are driven to rotate by the lead screw 18. Therefore, the entire rotating frame 9 is controlled to rotate from multiple points to achieve the purpose of driving the test sample 7.

[0024] In this embodiment, the pressing assembly 25 includes a hydraulic rod 24, a pressing plate 27, and an arc-shaped plate 28. A pressing bracket 31 is inserted into the bottom side of the arc-shaped plate 28, and a pressing guide roller 32 is sleeved on the bottom end of the pressing bracket 31. The top of the hydraulic rod 24 is screwed to the bottom of the top plate 23, and a telescopic groove 30 is formed on the inner side of the arc-shaped plate 28. The bottom of the hydraulic rod 24 is screwed to the pressing plate 27, and the bottom of the pressing plate 27 is attached to the top of the arc-shaped plate 28. A lifting hole 22 is formed inside the rear end plate 3, and a lifting column 29 is integrally formed at the rear end of the arc-shaped plate 28. An electrode probe 38 is installed at the rear end of one of the lifting columns 29. The installation mechanism 6 is rotated by the motor 4, and the hydraulic rod 24 at the top provides a periodic lifting and pressing effect. The two motion structures are controlled independently, so the range of the simulated mechanism 8 pressing on the surface of the test sample 7 can be flexibly controlled, making the simulated stepping area more uniform. This improves testing efficiency and reduces the occupied volume.

[0025] Specifically, after the hydraulic rod 24 is activated, the hydraulic rod 24 performs periodic lifting and lowering movements, which can directly apply pressure to the arc plate 28 through the bottom docking channel 17, and then apply the pressure to the friction mechanism 26 at the bottom through the arc plate 28. The friction mechanism 26 applies the pressure to the test sample 7 at the bottom to simulate the effect of a person stepping on the carpet surface. During the lifting and lowering movement of the hydraulic rod 24, it will drive the arc plate 28 at the bottom to move synchronously along the lifting groove at the rear.

[0026] In this embodiment, the friction mechanism 26 includes a friction plate 33, a connecting plate 35, and a telescopic spring 36. A transmission plate 34 is integrally formed on the top of the friction plate 33, and a connecting plate 35 is integrally formed on the side of the transmission plate 34. A telescopic spring 36 is welded to one end of the connecting plate 35, and a limiting protrusion 37 is integrally formed at the end of the telescopic spring 36. The telescopic groove 30, the connecting plate 35, and the telescopic spring 36 are all arc-shaped, and the end of the connecting plate 35 and the entire telescopic spring 36 are embedded inside the telescopic groove 30. The bottom of the friction plate 33 is used to press against the surface of the test sample 7. The pressing component 25 applies pressure vertically to the surface of the friction plate 33 through the pressing guide roller 32. After the test sample 7 is wound and installed by the installation mechanism 6, the simulation mechanism 8 above simulates the effect of stepping on the test sample 7, which can more accurately simulate the static electricity generated after stepping on the carpet surface during actual use, improving the reliability and accuracy of the test results. It can also be used to test static friction under only downward vertical pressure or static electricity generation under sliding friction conditions, thus expanding the range of tests.

[0027] Specifically, after the pressure is transmitted from the top pressing component 25 to the friction mechanism 26 below, the friction mechanism 26 directly presses against the surface of the test sample 7 via the friction plate 33. At the moment of contact, due to the contact compression between the friction plate 33 and the test sample 7, and the pressure transmission provided by the pressing component 25 through the pressing guide roller 32 and the friction plate 33, the test sample 7 can drive the friction mechanism 26 to rotate synchronously. This process can simulate the propulsion effect generated when a person walks on a carpet. As the friction plate 33 moves along the test sample 7 over a short distance... After activation, the hydraulic rod 24 can be moved upwards, directly pulling the friction mechanism 26 upwards. Under the action of the internal telescopic spring 36, the entire friction plate 33, plug-in plate 35, and transmission plate 34 are pulled back to their original positions, facilitating the repetition of subsequent simulation tests. Simultaneously, by controlling the hydraulic rod 24 to move downwards, the friction plate 33 is kept pressed against the surface of the test sample 7 until the spring rod is fully extended. This causes sliding friction between the friction plate 33 and the surface of the test sample 7, simulating the static electricity generated when an object is dragged across the surface of the test sample 7. Both test schemes transmit the generated static electricity to the external voltmeter section via the rear lifting column 29 and electrode probe 38, thereby achieving the purpose of detecting the generated static electricity.

[0028] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A carpet electrostatic testing device, comprising a testing device body, characterized in that: The testing device body includes a test bench (1), a mounting mechanism (6), a motor (4), and a simulation mechanism (8). A front end plate (2) is welded to the front side of the test bench (1). The outer shell of the motor (4) is screwed onto the surface of the front end plate (2). A drive shaft (5) is inserted into the output end of the motor (4). The drive shaft (5) passes through the middle of the mounting mechanism (6). The sample to be tested (7) is wound around the surface of the mounting mechanism (6). A clamp is provided on the inner side of the mounting mechanism (6). The clamp includes two clamping plates. (20) Both ends of the test sample (7) are embedded into the inner side of the clamp (20). The test platform (1) is welded with a rear end plate (3). The top of the rear end plate (3) is integrally formed with a top plate (23). The bottom of the top plate (23) is equipped with a simulation mechanism (8). The simulation mechanism (8) includes a pressing component (25) and a friction mechanism (26). The pressing component (25) rests against the friction mechanism (26), and the bottom of the friction mechanism (26) is used to press on the surface of the test sample (7).

2. The carpet electrostatic testing device according to claim 1, characterized in that: The mounting mechanism (6) includes a rotating frame (9) and a center plate (10). The center plate (10) is integrally formed on the inner side of the rotating frame (9). A drive hole (12) is provided in the middle of the center plate (10). A pressure groove (11) and a clamping groove (19) are provided inside the rotating frame (9).

3. The carpet electrostatic testing device according to claim 2, characterized in that: A pressure boosting column (13) is inserted inside the pressure boosting groove (11). A through hole (14) is opened inside the pressure boosting column (13). A linkage shaft (16) is inserted inside the through hole (14). A plug-in plate (35) is integrally formed at the end of the linkage shaft (16). A docking channel (17) is embedded at one end of the plug-in plate (35).

4. The carpet electrostatic testing device according to claim 3, characterized in that: The docking channel (17) is fitted with a lead screw (18), the drive shaft (5) has a threaded hole on its surface, the end of the lead screw (18) is embedded in the threaded hole on the surface of the drive shaft (5), the test sample (7) is embedded in the pressure groove (11), and the test sample (7) is sleeved on the surface of the pressure column (13).

5. The carpet electrostatic testing device according to claim 3, characterized in that: The edge of the clamping groove (19) has a notch, and the test sample (7) is inserted into the interior of the clamping groove (19) from the notch. Both ends of the surface of the clamping plate (20) are fitted with compression bolts (21), which are used to control the two clamping plates (20) to clamp and fix the test sample (7) on the inner side.

6. The carpet electrostatic testing device according to claim 2, characterized in that: The pressing assembly (25) includes a hydraulic rod (24), a pressing plate (27) and an arc plate (28). A pressing bracket (31) is inserted into the bottom side of the arc plate (28). A pressing guide roller (32) is sleeved on the bottom end of the pressing bracket (31). The top of the hydraulic rod (24) is screwed to the bottom of the top plate (23). A telescopic groove (30) is opened on the inner side of the arc plate (28).

7. The carpet electrostatic testing device according to claim 6, characterized in that: The bottom of the hydraulic rod (24) is screwed with a pressing plate (27), the bottom of the pressing plate (27) is attached to the top of the arc plate (28), the rear end plate (3) has a lifting hole (22) inside, and the rear end of the arc plate (28) is integrally formed with a lifting column (29), and an electrode probe (38) is installed at the rear end of one of the lifting columns (29).

8. The carpet electrostatic testing device according to claim 6, characterized in that: The friction mechanism (26) includes a friction plate (33), a plug plate (35) and a telescopic spring (36). The top of the friction plate (33) is integrally formed with a transmission plate (34), and the side of the transmission plate (34) is integrally formed with a plug plate (35).

9. A carpet electrostatic testing device according to claim 8, characterized in that: One end of the plug plate (35) is welded with a telescopic spring (36), and the end of the telescopic spring (36) is integrally formed with a limiting protrusion (37). The telescopic groove (30), the plug plate (35) and the telescopic spring (36) are all arc-shaped, and the end of the plug plate (35) and the entire telescopic spring (36) are embedded in the interior of the telescopic groove (30).

10. A carpet electrostatic testing device according to claim 9, characterized in that: The bottom of the friction plate (33) is used to press against the surface of the test sample (7), and the pressing assembly (25) applies pressure vertically to the surface of the friction plate (33) through the pressing guide roller (32).

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