Cable insulation detection device
By designing an automatic cable insulation testing device that displays and fixes cables, the problem of low cable connection efficiency in existing technologies has been solved, achieving efficient and stable cable insulation testing.
Patent Information
- Application Number
- CN202422841190.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing cable insulation testing devices require frequent searching of the testing device and cable when connecting cables, resulting in low work efficiency.
A cable insulation testing device was designed. During the opening of the cover plate at the top of the protective box, the mechanical structure of the rotating plate and the transmission plate automatically displays the cable to be tested, reducing the handling time. The cable is fixed by the cooperation of the sliding component and the spring to avoid measurement errors caused by poor contact.
It enables automatic display and fixation of cables, saving time in searching and retrieving, improving work efficiency, and enhancing the stability and accuracy of detection.
Smart Images
Figure CN223650662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable insulation testing technology, and in particular to a cable insulation testing device. Background Technology
[0002] A cable insulation testing device is a specialized piece of equipment used to evaluate the insulation performance of cables. It measures the insulation resistance of a cable. Insulation resistance is a key indicator reflecting the insulation performance of a cable. It is calculated by applying a certain DC voltage to the cable and then detecting the weak leakage current flowing through the insulation layer, using Ohm's law (resistance = voltage / current). A sufficiently high insulation resistance value indicates good cable insulation performance; a value that is too low may indicate problems such as insulation layer damage, moisture absorption, or aging.
[0003] In existing technologies, most cable insulation testing devices require operators to shuttle between the device storage area and the cable storage area to locate the necessary components. This process is time-consuming, and when frequent testing is required, overall work efficiency is severely impacted. For example, in a large cable maintenance project where numerous cables are tested individually, the extra time spent retrieving the connecting devices and cables each time significantly extends the project's testing cycle. Therefore, to address these shortcomings, a new cable insulation testing device is proposed to solve the aforementioned problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a cable insulation testing device, which aims to improve the problem that some existing cable insulation testing devices require finding and retrieving the testing cable when connecting the cable, resulting in reduced work efficiency.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A cable insulation testing device includes a protective box. A cover plate is rotatably connected to the top of the protective box via a pin. A detector housing is installed inside the protective box. Opening plates are fixedly connected to the left and right ends of the bottom side of the cover plate. A rotating plate is rotatably connected inside the opening plate. A transmission plate is rotatably connected to the bottom end of the rotating plate. A fixing rod is fixedly connected inside the transmission plate. A concave block is rotatably connected to the outside of the fixing rod. Two limiting openings are opened at the left and right ends of the protective box. A placement box is slidably connected to the bottom end of the protective box. A square opening is opened inside the placement box. Multiple square plates are fixedly connected to the top side of the detector housing. Sliding components for transmitting power are slidably connected to the left and right ends of the square plates.
[0007] As a further description of the above technical solution:
[0008] The sliding component is rotatably connected to both ends of the sliding component. Two I-shaped plates are rotatably connected to the adjacent ends of the multiple connecting plates. A connecting rod is fixedly connected to the adjacent side of the multiple I-shaped plates. A spring is sleeved on the outside of the connecting rod. An arc-shaped plate is fixedly connected to the adjacent side of the multiple connecting rods.
[0009] As a further description of the above technical solution:
[0010] Two fixing blocks are fixedly connected to the front side of the protective box, and handles are rotatably connected inside the two fixing blocks.
[0011] As a further description of the above technical solution:
[0012] The placement box has inclined openings on both the left and right sides, and the two fixed rods are slidably connected to the inner walls of the left and right ends of the placement box respectively.
[0013] As a further description of the above technical solution:
[0014] The two fixing rods are slidably connected to the inner walls of the left and right ends of the protective box, respectively, and the fixing rods are slidably connected to the inside of the inclined opening.
[0015] As a further description of the above technical solution:
[0016] The sliding component includes buttons, and the two buttons are externally slidably connected to the inner walls of the left and right ends of the square plate. A sliding plate is fixedly connected to the adjacent side of the two buttons.
[0017] As a further description of the above technical solution:
[0018] The front and rear ends of the sliding plate are rotatably connected to one end of the two connecting plates, and the exterior of the two sliding plates are slidably connected to the inner walls of the left and right ends of the square plate.
[0019] As a further description of the above technical solution:
[0020] The two springs are respectively fixedly connected at their proximal ends to the two arc-shaped plates at their distal ends, and respectively fixedly connected at their distal ends to the inner walls of the square plate at the front and rear ends.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the cover plate at the top of the protective box is flipped upwards. During the opening process of the cover plate, the opening plate on its bottom side rotates with the cover plate, causing the rotating plate to make an arc-shaped movement. The rotating plate transmits force to the transmission plate, causing the transmission plate to slide up and down. In turn, the fixed rod inside the transmission plate moves accordingly. Since the fixed rod engages with the inclined opening of the placement box, when the fixed rod slides upwards, it pushes the placement box to slide backwards. At this time, the detection cable is automatically exposed, eliminating the need to search for and retrieve it, saving time and effort, and thus improving work efficiency.
[0023] 2. In this utility model, the detection cable is clamped between a pair of arc-shaped plates and then inserted into the detector housing. Next, the button of the sliding assembly is pressed, which causes the sliding plate to slide. The connecting plates at both ends of the sliding plate rotate under force, thereby causing the I-shaped plate to slide back and forth. The I-shaped plate causes the connecting rod and the arc-shaped plate to slide and compress the spring. The spring stores elastic potential energy and gives the arc-shaped plate a force in the opposite direction to reinforce the detection cable, avoiding measurement errors caused by poor cable contact, thereby improving the stability of the detection. Attached Figure Description
[0024] Figure 1 This is a perspective view of a cable insulation testing device proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the opening plate of the cable insulation testing device proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the rotating plate of a cable insulation testing device proposed in this utility model;
[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0028] Figure 5 This is a schematic diagram of the structure of the placement box for a cable insulation testing device proposed in this utility model;
[0029] Figure 6 for Figure 3 Enlarged view at point B in the middle;
[0030] Figure 7 This is a schematic diagram of the arc-shaped plate of a cable insulation testing device proposed in this utility model.
[0031] Legend:
[0032] 1. Protective box; 2. Cover plate; 3. Handle; 4. Detector housing; 5. Opening plate; 6. Rotating plate; 7. Transmission plate; 8. Fixing rod; 9. Concave block; 10. Limiting opening; 11. Placement box; 12. Inclined opening; 13. Square opening; 14. Square plate; 15. Button; 16. Sliding plate; 17. Connecting plate; 18. I-shaped plate; 19. Connecting rod; 20. Spring; 21. Arc plate; 22. Fixing block. Detailed Implementation
[0033] 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.
[0034] Reference Figures 1 to 3 This utility model provides an embodiment of a cable insulation testing device, comprising a protective box 1 for protecting the internal testing device. A cover plate 2 is rotatably connected to the top of the protective box 1 via a pin, and the two work together to complete the installation and closure of the cover plate 2. A detector housing 4 is installed inside the protective box 1 for insulation testing by resistance detection. Opening plates 5 are fixedly connected to both the left and right ends of the bottom side of the cover plate 2, and the rotation of the cover plate 2 drives the opening plates 5 to rotate. A rotating plate 6 is rotatably connected inside the opening plate 5, and the rotation of the opening plate 5 drives the rotating plate 6 to rotate when it makes an arc-shaped movement.
[0035] Reference Figures 3 to 5 A transmission plate 7 is rotatably connected to the bottom end of a rotating plate 6. The rotating plate 6 transmits the rotational force to the transmission plate 7, allowing the transmission plate 7 to slide up and down. A fixing rod 8 is fixedly connected inside the transmission plate 7, transmitting the force of the transmission plate 7 to subsequent components. The two fixing rods 8 are slidably connected to the inner walls of the left and right ends of the protective box 1, respectively. The protective box 1 restricts the movement of the fixing rods 8. A concave block 9 is rotatably connected to the outside of the fixing rod 8, causing the concave block 9 to slide up and down. Two limiting openings 10 are provided at both ends of the protective box 1, providing space for the movement of the concave block 9. A placement box 11 is slidably connected to the bottom end of the protective box 1 for placing the testing cable. The adjacent ends of the two fixing rods 8 are slidably connected to the inner walls of the left and right ends of the placement box 11, respectively. Inclined openings 12 are provided on both sides of the placement box 11, allowing the fixing rods 8 to push the placement box 11 to slide back and forth. The fixed rod 8 is externally slidably connected to the inside of the inclined opening 12, which restricts the sliding of the fixed rod 8. The inside of the placement box 11 has a square opening 13 to provide space for placing the testing cable.
[0036] Reference Figure 3 , Figure 6 and Figure 7 Multiple square plates 14 are fixedly connected to the top side of the detector housing 4 for guiding the detection cable. Sliding assemblies for transmitting power are slidably connected to both ends of the square plates 14. Each sliding assembly includes a button 15, with the outer sides of two buttons 15 slidably connected to the inner walls of the left and right ends of the square plates 14, allowing the buttons 15 to slide left and right. Sliding plates 16 are fixedly connected to adjacent sides of the two buttons 15, transmitting sliding force to the sliding plates 16 when the buttons 15 are pressed. The outer sides of the two sliding plates 16 are slidably connected to the inner walls of the left and right ends of the square plates 14, allowing the sliding plates 16 to slide stably. Connecting plates 17 are rotatably connected to both the front and rear ends of the sliding assembly, with the front and rear ends of the sliding plates 16 rotatably connected to one end of each connecting plate 17, allowing the sliding plates 16 to rotate when subjected to force.
[0037] Multiple connecting plates 17 are rotatably connected to two I-shaped plates 18 at their adjacent ends. The connecting plates 17 transmit rotational force to the I-shaped plates 18, allowing the I-shaped plates 18 to slide back and forth. Connecting rods 19 are fixedly connected to adjacent sides of the multiple I-shaped plates 18, transmitting sliding force to the connecting rods 19 through the I-shaped plates 18. Springs 20 are fitted around the outside of the connecting rods 19 to limit their movement and ensure even force distribution. Arc-shaped plates 21 are fixedly connected to adjacent sides of the multiple connecting rods 19 to limit and fix the testing cable. Two springs 20 are fixedly connected to adjacent sides of two arc-shaped plates 21 at their respective distal ends. When compressed, the springs 20 store elastic potential energy, providing a restoring force to the arc-shaped plates 21. Two distant ends of the two springs 20 are fixedly connected to the front and rear ends of the inner wall of the square plate 14. Two fixing blocks 22 are fixedly connected to the front of the protective box 1 to support subsequent components. The two fixed blocks 22 are internally connected to handles 3, which makes it easy for the user to hold the handles 3 and move the protective box 1.
[0038] Working principle: When the device is needed to perform cable insulation testing, first open the cover plate 2. During the opening of the cover plate 2, the two opening plates 5 will rotate with the cover plate 2. The opening plates 5 will drive the rotating plate 6 to make an arc-shaped movement. The rotating plate 6 will then transmit the rotational force to the transmission plate 7, causing the transmission plate 7 to slide up and down. The fixing rod 8 inside the transmission plate 7 moves with the transmission plate 7 and engages in the inclined opening 12 of the placement box 11. When the fixing rod 8 slides upward, it can push the placement box 11 to slide backward and expose the cable for testing inside. This eliminates the need to separately search for and retrieve the cable for testing, saving working time and improving work efficiency.
[0039] The detection cable is then secured between a pair of arc-shaped plates 21 and inserted into the detector housing 4. After the detection cable is inserted into the device, pressing the button 15 of the sliding assembly transmits the sliding force to the sliding plate 16. The connecting plates 17 at both ends of the sliding plate 16 rotate under the force after the sliding plate 16 slides. The connecting plates 17 transmit the rotational force to the I-shaped plate 18, causing the I-shaped plate 18 to slide back and forth. Then, the I-shaped plate 18 drives the connecting rod 19 to slide, which in turn drives the arc-shaped plate 21 to slide and compress the spring 20, allowing the spring 20 to store elastic potential energy. The detection cable is then inserted into the detector housing 4, and a force in the opposite direction is applied to the arc-shaped plate 21 to fix the detection cable. The other end of the detection cable is then fixed to the cable to be tested, and the insulation is determined by resistance detection through the detector housing 4.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cable insulation testing device, comprising a protective box (1), characterized in that: The top of the protective box (1) is rotatably connected to a cover plate (2) by a pin. The detector housing (4) is installed inside the protective box (1). The bottom left and right ends of the cover plate (2) are fixedly connected to an opening plate (5). The opening plate (5) is rotatably connected to a rotating plate (6). The bottom end of the rotating plate (6) is rotatably connected to a transmission plate (7). The transmission plate (7) is fixedly connected to a fixing rod (8). The outside of the fixing rod (8) is rotatably connected to a concave block (9). The left and right ends of the protective box (1) are each provided with two limiting openings (10). The bottom end of the protective box (1) is slidably connected to a placement box (11). The inside of the placement box (11) is provided with a square opening (13). The top side of the detector housing (4) is fixedly connected to multiple square plates (14). The left and right ends of the square plates (14) are slidably connected to sliding components for transmitting power.
2. The cable insulation testing device according to claim 1, characterized in that: The sliding assembly is rotatably connected to both ends of a connecting plate (17). Two I-shaped plates (18) are rotatably connected to the adjacent ends of the multiple connecting plates (17). A connecting rod (19) is fixedly connected to the adjacent side of the multiple I-shaped plates (18). A spring (20) is sleeved on the outside of the connecting rod (19). An arc-shaped plate (21) is fixedly connected to the adjacent side of the multiple connecting rods (19).
3. The cable insulation testing device according to claim 1, characterized in that: The front side of the protective box (1) is fixedly connected to two fixing blocks (22), and the inside of the two fixing blocks (22) is rotatably connected to a handle (3).
4. The cable insulation testing device according to claim 1, characterized in that: The placement box (11) has inclined openings (12) on both the left and right sides, and the two fixed rods (8) are slidably connected to the inner walls of the left and right ends of the placement box (11).
5. The cable insulation testing device according to claim 4, characterized in that: The two fixing rods (8) are slidably connected to the inner walls of the left and right ends of the protective box (1), respectively, and the fixing rods (8) are slidably connected to the inside of the inclined opening (12).
6. The cable insulation testing device according to claim 2, characterized in that: The sliding assembly includes buttons (15), and the two buttons (15) are externally slidably connected to the inner walls of the left and right ends of the square plate (14). A sliding plate (16) is fixedly connected to the adjacent side of the two buttons (15).
7. A cable insulation testing device according to claim 6, characterized in that: The front and rear ends of the sliding plate (16) are rotatably connected to one end of the two connecting plates (17), and the exterior of the two sliding plates (16) are slidably connected to the inner walls of the left and right ends of the square plate (14).
8. A cable insulation testing device according to claim 2, characterized in that: The two springs (20) are respectively fixedly connected at their close ends to the two arc-shaped plates (21) at their far ends, and the two springs (20) are respectively fixedly connected at their far ends to the front and rear ends of the inner wall of the square plate (14).