A flexible electrode clamp for partial discharge detection of a cable

Abstract

This utility model relates to the field of cable testing technology and discloses a flexible electrode clamp for partial discharge detection of cables. It includes a handle, a base block fixedly connected to the top of the handle, a wall-mounting mechanism mounted on the top of the base block, and a horizontal plate fixedly connected to the bottom of the handle. A clamping mechanism is installed inside the horizontal plate, and a mold-changing assembly is installed outside the clamping mechanism. The clamping mechanism includes a transmission assembly, a displacement assembly, and a stabilizing assembly. The transmission assembly includes rack one and rack two, which are slidably connected inside the horizontal plate. In this utility model, the meshing of the gears and racks drives the external clamping mechanism to move, efficiently and safely clamping the flexible electrode of the cable, thus improving work efficiency. Furthermore, the elasticity of the springs enables rapid replacement of the clamping plate, greatly improving the applicability of the equipment and reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, and in particular to a flexible electrode clamp for partial discharge detection of cables. Background Technology

[0002] A cable is a type of conductor composed of multiple insulated strands, typically at least two strands twisted together to form a rope-like structure. Each group of conductors is insulated from each other and often twisted around a central core, covered by a highly insulating outer layer. Cables are primarily used for telecommunications or power transmission, possessing excellent insulation properties and a protective sheath, suitable for underground, underwater, or overhead installation. Of course, before using these cables, testing is essential, requiring appropriate flexible electrode clamps for partial discharge testing to secure them.

[0003] The flexible electrode clamp for partial discharge testing of cables is a testing device used to simulate the stress conditions of cables in actual use. Its design aims to fix the inner conductor in place and maintain its stable position while allowing it to move within a certain range, ensuring accuracy and reliability during the testing process. This clamp typically consists of force clamps and tensile testing clamps connected together to apply different forces, thereby evaluating the insulation performance of the cable under various stress conditions.

[0004] Although existing flexible electrode clamps can meet the needs of most scenarios, they cannot clamp the flexible electrodes of cables quickly, efficiently and safely, and still pose some safety hazards. They are also not portable enough. Therefore, a flexible electrode clamp for cable partial discharge detection is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a flexible electrode clamp for partial discharge detection of cables, aiming to improve the problem that the existing technology cannot quickly, efficiently and safely clamp the flexible electrodes of cables.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible electrode clamp for partial discharge detection in cables includes a handle, a base block fixedly connected to the top of the handle, a wall-mounting mechanism mounted on the top of the base block, a horizontal plate fixedly connected to the bottom of the handle, a clamping mechanism installed inside the horizontal plate, and a mold-changing assembly installed outside the clamping mechanism. The clamping mechanism includes a transmission assembly, a displacement assembly, and a stabilizing assembly. The transmission assembly includes rack one and rack two, which are slidably connected inside the horizontal plate. A gear is rotatably connected inside the horizontal plate, and rack one and rack two mesh with the gear. A motor is fixedly connected to the top of the horizontal plate, and the output end of the motor is fixedly connected to the gear. The motor is located inside the handle.

[0008] As a further description of the above technical solution:

[0009] The displacement assembly includes two moving plates, which are slidably connected inside the horizontal plate. One of the moving plates is fixedly connected to the outside of the rack one, and the other moving plate is fixedly connected to the outside of the rack two. An auxiliary block is fixedly connected to the bottom of the moving plate, and a clamping plate is slidably connected to the outside of the auxiliary block. A rubber pad is fixedly connected to the outside of the clamping plate.

[0010] As a further description of the above technical solution:

[0011] The stabilizing component includes a fixing rod, which is fixedly connected to the outside of the moving plate. Both rack one and rack two have grooves inside, and the fixing rod engages with the grooves.

[0012] As a further description of the above technical solution:

[0013] The mold changing assembly includes a housing, which is fixedly connected to the outside of the auxiliary block. A pin is slidably connected inside the housing. A spring is sleeved on the outside of the pin. A limit plate is fixedly connected to the outside of the pin. An insertion hole is opened inside the clamping plate, and the pin and the insertion hole are engaged with each other.

[0014] As a further description of the above technical solution:

[0015] The wall-mounting mechanism includes a drive component, a moving component, and a fixing component. The drive component includes a protective shell, which is fixedly connected to the top of the base block. A button is slidably connected to the middle of the protective shell, and a support plate is fixedly connected to the outside of the button.

[0016] As a further description of the above technical solution:

[0017] The moving component includes two rotating rods, which are rotatably connected to the outside of the support plate. The other end of the two rotating rods is rotatably connected to a vertical plate. A sliding rod is fixedly connected to the outside of the vertical plate. The sliding rod is slidably connected to the middle of the protective shell. A second spring is sleeved on the outside of the sliding rod. The second spring is located between the vertical plate and the protective shell.

[0018] As a further description of the above technical solution:

[0019] The fixing component includes a circular shell, which is fixedly connected inside the protective shell. A clamping block one and a clamping block two are slidably connected in the middle of the circular shell. An insert block is fixedly connected to the outside of the clamping block one. A slot is opened in the middle of the clamping block two, and the insert block and the slot are engaged with each other.

[0020] As a further description of the above technical solution:

[0021] The auxiliary block has a groove inside, and a slider is fixedly connected to the outside of the clamping plate. The slider is slidably connected inside the groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the flexible electrode of the cable is clamped efficiently and safely by means of the meshing action of gears and racks, driven by a motor.

[0024] 2. In this utility model, the elasticity of the spring enables quick replacement of the clamping plate, allowing for appropriate replacement according to different cable models, greatly improving the applicability of the equipment and reducing costs. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a flexible electrode clamp for partial discharge detection of cables proposed in this utility model.

[0026] Figure 2 This is a cross-sectional schematic diagram of the clamping mechanism of a flexible electrode clamp for partial discharge detection of cables proposed in this utility model.

[0027] Figure 3 This is a cross-sectional schematic diagram of the mold-changing assembly of a flexible electrode clamp for partial discharge detection of cables proposed in this utility model.

[0028] Figure 4 This is a cross-sectional schematic diagram of the wall-mounting mechanism of a flexible electrode clamp for partial discharge detection of cables proposed in this utility model.

[0029] Legend:

[0030] 1. Handle; 2. Base block; 3. Protective shell; 4. Horizontal plate; 5. Rubber pad; 6. Clamping plate; 7. Auxiliary block; 8. Motor; 9. Gear; 10. Rack one; 11. Rack two; 12. Moving plate; 13. Groove; 14. Fixing rod; 15. Outer shell; 16. Pin; 17. Limiting plate; 18. Spring one; 19. Insertion hole; 20. Slider; 21. Slide groove; 22. Button; 23. Support plate; 24. Rotating rod; 25. Vertical plate; 26. Slide rod; 27. Spring two; 28. Round shell; 29. ​​Clamping block one; 30. Clamping block two; 31. Inserting block; 32. Slot. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 2This utility model provides an embodiment of a flexible electrode clamp for partial discharge detection of cables, including a handle 1 for the user to grip. A base block 2 is fixedly connected to the top of the handle 1, and a wall-mounting mechanism is installed on the top of the base block 2, allowing the user to store the device at any time. A horizontal plate 4 is fixedly connected to the bottom of the handle 1 to protect internal parts from damage. A clamping mechanism is installed inside the horizontal plate 4 to clamp the flexible electrode of the cable. The clamping mechanism is externally mounted... Equipped with a mold-changing assembly, the clamping mechanism allows for the replacement of cables of different models. The clamping mechanism includes a transmission assembly, a displacement assembly, and a stabilizing assembly. The transmission assembly includes rack 10 and rack 21, which are slidably connected inside the horizontal plate 4. Rack 10 and rack 21 move the clamping plate 6. A gear 9 is rotatably connected inside the horizontal plate 4, and the rotation of gear 9 drives rack 10 and rack 21 to move. Rack 10 and rack 21 mesh with gear 9. A motor 8 is fixedly connected to the top of the horizontal plate 4, which drives the gear 9 to rotate. The output end of the motor 8 is fixedly connected to the gear 9. The motor 8 is located inside the handle 1. The shifting component includes two moving plates 12, which are slidably connected inside the horizontal plate 4. Other components are connected through the moving plates 12. One moving plate 12 is fixedly connected to the outside of a rack 10, and the other moving plate 12 is fixedly connected to the outside of a rack 2 11. An auxiliary block 7 is fixedly connected to the bottom of the moving plate 12 to facilitate the replacement of the clamping plate 6. The clamping plate 6 is slidably connected to the outside of the auxiliary block 7 to clamp the flexible electrode. A rubber pad 5 is fixedly connected to the outside of the clamping plate 6 to prevent injury. The stabilizing component includes a fixing rod 14, which is fixedly connected to the outside of the moving plate 12. The rack 10 and rack 2 11 are both provided with grooves 13. The fixing rod 14 is engaged with the grooves 13. By moving the fixing rod 14 into the groove 13, stable operation of the clamping process can be achieved.

[0033] Reference Figure 1 and Figure 3 The mold changing assembly includes a housing 15, which is fixedly connected to the outside of the auxiliary block 7. The housing 15 protects the internal parts from damage. A pin 16 is slidably connected inside the housing 15 to secure the clamping plate 6 to the outside of the auxiliary block 7. A spring 18 is sleeved on the outside of the pin 16, which allows the pin 16 to quickly return to its original position. A limit plate 17 is fixedly connected to the outside of the pin 16 to prevent the pin 16 from popping out due to excessive elasticity and causing equipment damage. The clamping plate 6 has a socket 19 inside, and the pin 16 is engaged with the socket 19. By tightly inserting the pin 16 into the socket 19, the clamping plate 6 can be tightly connected to the auxiliary block 7.

[0034] Reference Figure 1and Figure 4 The wall-mounting mechanism includes a drive assembly, a moving assembly, and a fixing assembly. The drive assembly includes a protective shell 3, which is fixedly connected to the top of the base block 2. The protective shell 3 protects the internal parts from damage. A button 22 is slidably connected to the middle of the protective shell 3, allowing for quick operation. A support plate 23 is fixedly connected to the outside of the button 22, connecting all components. The moving assembly includes two rotating rods 24, which are rotatably connected to the outside of the support plate 23. Rotating the rotating rods 24 pushes the vertical plate 25 to move. The other ends of the two rotating rods 24 are rotatably connected to the vertical plate 25, which compresses the second spring 27 as it moves. A sliding rod 26 is fixedly connected to the outside of the vertical plate 25, slidably connected to the middle of the protective shell 3. A second spring is sleeved on the outside of the sliding rod 26. 27. Spring 27 allows the slide bar 26 to quickly return to its original position. Spring 27 is located between the vertical plate 25 and the protective shell 3. The fixing assembly includes a circular shell 28, which is fixedly connected inside the protective shell 3. A clamping block 29 and a clamping block 30 are slidably connected in the middle of the circular shell 28. An insert block 31 is fixedly connected to the outside of the clamping block 29. A slot 32 is opened in the middle of the clamping block 30. The insert block 31 and the slot 32 are engaged with each other. By bringing the clamping block 29 and the clamping block 30 closer together, the insert block 31 can be driven to insert into the slot 32, thus achieving wall mounting of the equipment. A sliding groove 21 is opened inside the auxiliary block 7. A slider 20 is fixedly connected to the outside of the clamping plate 6. The slider 20 is slidably connected inside the sliding groove 21. The slider 20 allows the clamping plate 6 to slide more smoothly into the auxiliary block 7, which is convenient for operation.

[0035] Working principle: First, when it is necessary to clamp the flexible electrode of the cable, the motor 8 is started. The motor 8 will drive the gear 9 connected to it to rotate. At this time, the rack 10 and rack 2 11 that mesh with the gear 9 will move horizontally and drive the moving plate 12 to move. At this time, the auxiliary block 7 connected to the moving plate 12 will move together, and the clamping plate 6 connected to the auxiliary block 7 will move closer to each other, finally clamping the flexible electrode of the cable. At the same time, the rubber pad 5 set on the outside of the clamping plate 6 can effectively insulate and prevent injury to the human body, and also increase friction to prevent the cable from slipping.

[0036] Secondly, when it is necessary to replace the clamp plate 6 according to different cable models, by pulling the pin 16, the pin 16 is pulled out from the insertion hole 19 on the clamp plate 6. At this time, the limiting plate 17 will move together with the pin 16 and squeeze the spring 18. Then the clamp plate 6 can be smoothly slid out of the slide groove 21 through the slider 20. Then the clamp plate 6 to be replaced is slid into the slide groove 21. Then release the hand that pulled the pin 16. At this time, due to the elasticity of the spring 18, the pin 16 will immediately return to the center and be inserted into the insertion hole 19. And due to the action of the limiting plate 17, the pin 16 will not pop out and cause equipment damage, which greatly improves work efficiency.

[0037] 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 flexible electrode clamp for partial discharge detection of a cable comprising a handle (1), characterized in that: The handle (1) is fixedly connected to the top of the bottom block (2), the bottom block (2) is equipped with a wall hanging mechanism, the handle (1) is fixedly connected to the bottom of the bottom block (2), the horizontal plate (4) is installed inside the horizontal plate (4), and the clamping mechanism is installed outside the clamping mechanism. The clamping mechanism includes a transmission component, a displacement component, and a stabilizing component. The transmission component includes a rack one (10) and a rack two (11). The rack one (10) and rack two (11) are slidably connected inside the horizontal plate (4). A gear (9) is rotatably connected inside the horizontal plate (4). The rack one (10) and rack two (11) mesh with the gear (9). A motor (8) is fixedly connected to the top of the horizontal plate (4). The output end of the motor (8) is fixedly connected to the gear (9). The motor (8) is located inside the handle (1).

2. The flexible electrode clamp for partial discharge detection of a cable according to claim 1, characterized in that: The displacement assembly includes two moving plates (12), which are slidably connected inside the horizontal plate (4). One of the moving plates (12) is fixedly connected to the outside of the rack one (10), and the other moving plate (12) is fixedly connected to the outside of the rack two (11). An auxiliary block (7) is fixedly connected to the bottom of the moving plate (12), and a clamping plate (6) is slidably connected to the outside of the auxiliary block (7). A rubber pad (5) is fixedly connected to the outside of the clamping plate (6).

3. The flexible electrode clamp for partial discharge detection of a cable according to claim 2, characterized in that: The stabilizing component includes a fixing rod (14), which is fixedly connected to the outside of the moving plate (12). Both the rack one (10) and the rack two (11) have grooves (13) inside, and the fixing rod (14) is engaged with the grooves (13).

4. The flexible electrode clamp for partial discharge detection of a cable according to claim 2, wherein: The mold changing assembly includes a housing (15), which is fixedly connected to the outside of the auxiliary block (7). A pin (16) is slidably connected inside the housing (15). A spring (18) is sleeved on the outside of the pin (16). A limit plate (17) is fixedly connected to the outside of the pin (16). An insertion hole (19) is opened inside the clamping plate (6). The pin (16) and the insertion hole (19) are engaged with each other.

5. The flexible electrode clamp for partial discharge detection of a cable according to claim 1, wherein: The wall-mounting mechanism includes a drive component, a moving component, and a fixing component. The drive component includes a protective shell (3), which is fixedly connected to the top of the base block (2). A button (22) is slidably connected to the middle of the protective shell (3), and a support plate (23) is fixedly connected to the outside of the button (22).

6. A flexible electrode clamp for partial discharge detection of a cable according to claim 5, characterized in that: The moving component includes two rotating rods (24), which are rotatably connected to the outside of the support plate (23). The other end of the two rotating rods (24) is rotatably connected to a vertical plate (25). A sliding rod (26) is fixedly connected to the outside of the vertical plate (25). The sliding rod (26) is slidably connected to the middle of the protective shell (3). A second spring (27) is sleeved on the outside of the sliding rod (26). The second spring (27) is located between the vertical plate (25) and the protective shell (3).

7. A flexible electrode clamp for partial discharge detection of a cable according to claim 6, characterized in that: The fixing component includes a circular shell (28), which is fixedly connected inside the protective shell (3). A clamping block 1 (29) and a clamping block 2 (30) are slidably connected in the middle of the circular shell (28). An insert block (31) is fixedly connected to the outside of the clamping block 1 (29). A slot (32) is opened in the middle of the clamping block 2 (30). The insert block (31) and the slot (32) are engaged with each other.

8. The flexible electrode clamp for partial discharge detection of a cable according to claim 2, wherein: The auxiliary block (7) has a groove (21) inside, and a slider (20) is fixedly connected to the outside of the clamping plate (6). The slider (20) is slidably connected inside the groove (21).

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