A test device for testing the pressure resistance of insulating boots and gloves

Abstract

This utility model relates to the field of withstand voltage testing technology for insulating materials, specifically a withstand voltage testing device for insulating boots and insulating gloves. It includes a control console, a test frame, and a transformer. A second test box is fixedly installed at the bottom of the test frame, and a water tank is fixedly installed on the upper surface of the second test box. An insulating glove sample is placed on the inner surface of the water tank. A sliding rod is fitted onto the inner end face of the frame, and a sliding groove is opened on the bottom end face of the frame. A linkage plate is fixedly installed at the bottom end of the sliding rod, and a main connecting rod is fitted onto the inner end face of the linkage plate. A secondary connecting rod is hinged to one end of the main connecting rod. A limit block is fixedly installed on the inner wall of the pressure block, and a cylindrical column is fixedly installed at the top of the sliding rod. A limit groove is opened on the surface of the cylindrical column. The beneficial effects are: it can evenly clamp the left and right points during the clamping process, reducing the difference in test results and improving the test accuracy; it can also achieve self-locking when clamping the insulating glove sample, preventing loosening and further improving the test accuracy.

Description

Technical Field

[0001] This utility model relates to the field of withstand voltage testing of insulating materials, specifically a withstand voltage testing device for insulating boots and insulating gloves. Background Technology

[0002] Insulating gloves and boots are commonly used safety protective equipment for electrical workers. Wearing insulating gloves and boots can effectively prevent electric shock accidents and ensure the personal safety of workers. Therefore, it is very important to test the insulation performance of insulating gloves and boots before use.

[0003] Insulating gloves are thinner than insulating boots, making them difficult to secure in a water tank. Existing methods of securing them involve using clips, which can provide some degree of stability.

[0004] However, during the clamping process, there may be differences in the left and right positions, resulting in uneven clamping of the insulating glove on both sides, causing the glove to tilt and affecting the test results. Utility Model Content

[0005] The purpose of this invention is to provide a withstand voltage testing device for insulating boots and insulating gloves to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a withstand voltage testing device for insulating boots and insulating gloves, comprising: a control console, a test frame and a transformer, a second test box fixedly installed at the bottom of the test frame, a water tank fixedly installed on the upper surface of the second test box, and an insulating glove sample provided on the inner surface of the water tank;

[0007] The frame has a sliding rod fitted on its inner end face and a sliding groove opened on its bottom end face. A linkage plate is fixedly installed at the bottom end of the sliding rod, and a main connecting rod is fitted on the inner end face of the linkage plate. A secondary connecting rod is hinged to one end of the main connecting rod.

[0008] A pin is fitted with a half gear on its outer wall. A protrusion is slidably installed on the inner surface of the groove. A fixing block is fixedly installed on the lower end face of the protrusion. A rack is fixedly installed on the upper end face of the protrusion. The rack meshes with the half gear and rotates.

[0009] The pressure block has a limit block fixedly installed on its inner wall, and a cylindrical column is fixedly installed on the top of the slide rod. A limit groove is opened on the surface of the cylindrical column, and a spring is sleeved on the outer wall of the cylindrical column.

[0010] Preferably, the frame is fixedly installed on the surface of the water tank, and the half gear rotates by meshing with the rack through a linkage plate.

[0011] Preferably, the pin is fixedly installed on the bottom surface of the frame, and the rack slides on the inner surface of the groove via a protrusion.

[0012] Preferably, the fixing blocks are provided in two sets, and the two sets of fixing blocks are symmetrically distributed at equal intervals along the center line of the slide rod.

[0013] Preferably, the pressure block is slidably sleeved on the outer surface of the cylinder by a spring, the other end of the spring abuts against the lower end face of the pressure block, and the limiting block engages with the limiting groove.

[0014] Preferably, a fixing plate is fixedly installed on the inner side of the test frame, and a plurality of insulating sleeves are sleeved on the inner surface of the fixing plate. A tripping device is elastically connected to the upper end of the insulating sleeve, and an iron chain is fixedly connected to the lower end of the tripping device.

[0015] Preferably, a first test box is fixedly installed on the side of the test frame near the bottom, and an insulating boot sample is provided on the surface of the first test box. The first test box and the second test box are placed on the same horizontal plane.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model proposes a withstand voltage testing device for insulating boots and insulating gloves;

[0018] By pressing the pressure block, the linkage plate at the bottom of the slide rod moves. The movement of the linkage plate drives the secondary linkage to move via the main linkage. Simultaneously, the movement of the secondary linkage drives the half gear to rotate and mesh with the rack at the bottom of the frame. Consequently, the two sets of fixing blocks expand to both sides through the sliding engagement of the protrusions and the sliding grooves, thereby clamping and fixing the insulating glove sample placed in the water tank. This linkage mechanism ensures uniform clamping at the left and right points during the clamping process, reducing the variability of test results and improving the test accuracy. While pressing the pressure block to compress the spring, it rotates 90 degrees, causing the limiting block on the inner wall of the pressure block to engage with the limiting groove on the surface of the cylinder, achieving self-locking when clamping the insulating glove sample, preventing loosening, and further improving the test accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the back structure of the test rack of this utility model;

[0021] Figure 3 This is a schematic diagram of the insulating glove fixing assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the synchronous fixing component structure of this utility model;

[0023] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of point A in the middle;

[0024] Figure 6 This is a schematic diagram of the limiting component structure of this utility model;

[0025] Figure 7 For the present utility model Figure 1 Enlarged view of section B in the middle.

[0026] In the diagram: 1. Control console; 2. Test frame; 3. Transformer; 4. Fixing plate; 5. Insulating sleeve; 6. Trip device; 7. First test box; 8. Second test box; 9. Insulating boot sample; 10. Water tank; 11. Insulating glove sample; 12. Frame; 13. Slide rod; 14. Linkage plate; 15. Shaft pin; 16. Half gear; 17. Main connecting rod; 18. Secondary connecting rod; 19. Rack; 20. Protrusion; 21. Fixing block; 22. Slide groove; 23. Cylindrical column; 24. Limiting groove; 25. Pressure block; 26. Limiting block; 27. Spring; 28. Chain. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1 to 7 This utility model provides a technical solution: a withstand voltage testing device for insulating boots and insulating gloves;

[0029] Example 1:

[0030] To improve test accuracy, a second test box 8 is fixedly installed at the bottom of the test frame 2. A water tank 10 is fixedly installed on the upper surface of the second test box 8. An insulated glove sample 11 is provided on the inner surface of the water tank 10. A sliding rod 13 is fitted on the inner end face of the frame 12. A sliding groove 22 is opened on the bottom end face of the frame 12. A linkage plate 14 is fixedly installed at the bottom end of the sliding rod 13. A main connecting rod 17 is fitted on the inner end face of the linkage plate 14. A secondary connecting rod 18 is hinged to one end of the main connecting rod 17. A shaft pin 15 is also provided. The outer wall is fitted with a half gear 16, the inner surface of the slide groove 22 is slidably mounted with a protrusion 20, the lower end face of the protrusion 20 is fixedly mounted with a fixing block 21, the upper end face of the protrusion 20 is fixedly mounted with a rack 19, the rack 19 meshes with the half gear 16 and rotates, the frame 12 is fixedly mounted on the surface of the water tank 10, the half gear 16 meshes with the rack 19 and rotates through the linkage plate 14, the shaft pin 15 is fixedly mounted on the bottom surface of the frame 12, and the rack 19 slides on the inner surface of the slide groove 22 through the protrusion 20;

[0031] By pressing the pressure block 25, the linkage plate 14 at the bottom of the slide rod 13 moves. The movement of the linkage plate 14 drives the secondary linkage 18 to move through the main linkage 17. At the same time, the movement of the secondary linkage 18 drives the half gear 16 to rotate and mesh with the rack 19 at the bottom of the frame 12. Then, the two sets of fixing blocks 21 expand to both sides through the sliding engagement of the protrusion 20 and the slide groove 22, so that the fixing blocks 21 clamp and fix the insulating glove sample 11 placed in the water tank 10. Through this linkage mechanism, the left and right points can be evenly clamped during the clamping process, reducing the difference in test results and improving the test accuracy.

[0032] A fixing plate 4 is fixedly installed on the inner side of the test frame 2. Several insulating sleeves 5 are sleeved on the inner surface of the fixing plate 4. A tripping device 6 is elastically connected to the upper end of the insulating sleeve 5. A chain 28 is fixedly connected to the lower end of the tripping device 6. A first test box 7 is fixedly installed on the side of the test frame 2 near the bottom. An insulating boot sample 9 is provided on the surface of the first test box 7. The first test box 7 and the second test box 8 are placed on the same horizontal plane.

[0033] During the withstand voltage test, the glove is unfolded and fixed by the synchronous clamping device. Water is poured into the insulating glove sample 11, and then the water tank 10 is also filled to the same level as the water poured into the insulating glove sample 11. The iron chain 28 is placed in the center of the insulating glove sample 11. The first test box 7 and the second test box 8 are grounded. The bottom of the water tank 10 is equipped with a metal plate. If the test is conductive, the leakage current will be too large and will break down the insulating glove sample 11, thereby triggering the tripping device 6. The withstand voltage test of the insulating boot sample 9 can be obtained in the same way.

[0034] Example 2:

[0035] To further improve the accuracy of the test based on Example 1, a limiting block 26 is fixedly installed on the inner wall of the pressure block 25, a cylindrical column 23 is fixedly installed on the top of the slide rod 13, a limiting groove 24 is opened on the surface of the cylindrical column 23, a spring 27 is sleeved on the outer wall of the cylindrical column 23, the pressure block 25 is slidably sleeved on the outer surface of the cylindrical column 23 through the spring 27, the other end of the spring 27 abuts against the lower end face of the pressure block 25, and the limiting block 26 is engaged with the limiting groove 24.

[0036] While pressing the pressure block 25 to compress the spring 27, rotate it 90 degrees, thereby causing the limiting block 26 on the inner wall of the pressure block 25 to engage in the limiting groove 24 on the surface of the cylinder 23, so as to achieve self-locking when clamping the insulating glove sample 11, prevent the clamping from loosening, and further improve the accuracy of the test.

[0037] Working principle: In actual use, during the first pressure test, pressing the pressure block 25 moves the linkage plate 14 at the bottom of the slide rod 13. The movement of the linkage plate 14 drives the secondary linkage 18 through the main linkage 17. Simultaneously, the movement of the secondary linkage 18 drives the half gear 16 to rotate and mesh with the rack 19 at the bottom of the frame 12. Then, the two sets of fixing blocks 21 expand to both sides through the sliding engagement of the protrusion 20 and the slide groove 22, thereby clamping and fixing the insulating glove sample 11 placed in the water tank 10. This linkage mechanism can evenly clamp the left and right points during the clamping process, reducing the difference in test results and improving the test accuracy. While pressing the pressure block 25 to compress the spring 27, it rotates 90 degrees, thereby causing the limiting block 26 on the inner wall of the pressure block 25 to engage with the limiting block on the surface of the cylinder 23. In the trough 24, a self-locking mechanism is established to clamp the insulating glove sample 11, preventing loosening and further improving the accuracy of the test. Water is then poured into the insulating glove sample 11, and the water level in the water tank 10 is the same as that in the insulating glove sample 11. The iron chain 28 is placed in the center of the insulating glove sample 11. The first test box 7 and the second test box 8 are grounded. A metal plate is provided at the bottom of the water tank 10. The voltage amplitude of the transformer 3 is adjusted by the control console 1, so that the high voltage current enters the test frame 2 through the connecting wire. If the device conducts electricity during the test, the leakage current is introduced into the trip unit 6 through the iron chain 28. If the leakage current is too large, it will break down the insulating glove sample 11, and the trip unit 6 will trip. The same principle applies to the withstand voltage test of the insulating boot sample 9.

[0038] 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 withstand voltage testing device for insulating boots and insulating gloves, characterized in that: include: The control console (1), test frame (2) and transformer (3) are provided. A second test box (8) is fixedly installed at the bottom of the test frame (2). A water tank (10) is fixedly installed on the upper surface of the second test box (8). An insulating glove sample (11) is provided on the inner surface of the water tank (10). A frame (12) is provided with a sliding rod (13) on its inner end face and a sliding groove (22) on its bottom end face. A linkage plate (14) is fixedly installed at the bottom end of the sliding rod (13). A main connecting rod (17) is provided on the inner end face of the linkage plate (14). A secondary connecting rod (18) is hinged to one end of the main connecting rod (17). A pin (15) is provided with a half gear (16) on its outer wall. A protrusion (20) is slidably installed on the inner surface of the groove (22). A fixing block (21) is fixedly installed on the lower end face of the protrusion (20). A rack (19) is fixedly installed on the upper end face of the protrusion (20). The rack (19) meshes with the half gear (16) and rotates. A pressure block (25) is fixedly installed on the inner wall of the pressure block (25). A cylindrical column (23) is fixedly installed on the top of the slide rod (13). A limit groove (24) is opened on the surface of the cylindrical column (23). A spring (27) is sleeved on the outer wall of the cylindrical column (23).

2. The withstand voltage testing device for insulating boots and insulating gloves according to claim 1, characterized in that: The frame (12) is fixedly installed on the surface of the water tank (10), and the half gear (16) meshes with the rack (19) through the linkage plate (14) to rotate.

3. The withstand voltage testing device for insulating boots and insulating gloves according to claim 1, characterized in that: The pin (15) is fixedly installed on the bottom surface of the frame (12), and the rack (19) slides on the inner surface of the groove (22) through the protrusion (20).

4. The withstand voltage testing device for insulating boots and insulating gloves according to claim 1, characterized in that: The fixing block (21) is provided in two sets, and the two sets of fixing blocks (21) are symmetrically distributed at equal intervals along the center line of the slide bar (13).

5. The withstand voltage testing device for insulating boots and insulating gloves according to claim 1, characterized in that: The pressure block (25) is slidably sleeved on the outer surface of the cylinder (23) by a spring (27), and the other end of the spring (27) abuts against the lower end face of the pressure block (25). The limiting block (26) engages with the limiting groove (24).

6. The withstand voltage testing device for insulating boots and insulating gloves according to claim 1, characterized in that: A fixing plate (4) is fixedly installed on the inner side of the test frame (2). Several insulating sleeves (5) are sleeved on the inner surface of the fixing plate (4). A tripping device (6) is elastically connected to the upper end of the insulating sleeve (5). A chain (28) is fixedly connected to the lower end of the tripping device (6).

7. The withstand voltage testing device for insulating boots and insulating gloves according to claim 1, characterized in that: The test frame (2) has a first test box (7) fixedly installed on the side near the bottom. The surface of the first test box (7) is provided with an insulating boot sample (9). The first test box (7) and the second test box (8) are placed on the same horizontal plane.

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