Insulating cap voltage withstanding test tool

Abstract

The utility model discloses an insulating cap pressure resistance test frock, including fixed frame, the fixed frame is from top to bottom in sequence and is provided with first back type frame, second back type frame and third back type frame, the third back type frame is connected with ground through bolt, be provided with adjusting assembly on the first back type frame, be provided with positioning cylinder on adjusting assembly, be provided with cable connector on the second back type frame, adjusting that adjusting assembly drives positioning cylinder, the utility model discloses beneficial effect is: through adjusting assembly drive positioning cylinder and carry out position adjustment, can make positioning cylinder accurate movement to with cable connector matching's position, ensure that insulating cap and cable connector butt joint positioning process stability, the stability of insulating cap in test process is enhanced significantly, and then improve test quality.

Description

Technical Field

[0001] This utility model relates to a pressure resistance testing fixture for an insulating cap. Background Technology

[0002] As a core component ensuring the insulation performance of cable joints, the cable joint insulating cap plays a vital role in power systems. Its main functions include preventing leakage and short-circuit accidents, while also effectively resisting the erosion of cable joints by external environments (such as dust, moisture, and corrosive substances), thereby ensuring the safety and stability of power transmission.

[0003] In practical applications, the withstand voltage performance of insulating caps directly affects the operational reliability of power systems. If the withstand voltage performance of the insulating caps fails to meet standards, it may lead to faults such as leakage and short circuits, which not only affect the normal transmission of electricity but may also cause safety accidents, resulting in personal injury and property damage. Therefore, rigorous withstand voltage testing of insulating caps is a crucial step in ensuring their quality.

[0004] However, existing insulating cap withstand voltage testing fixtures have some problems in use. For example, in traditional testing fixtures, the mating and positioning of the insulating cap and cable joint is not stable enough, and displacement is prone to occur during testing, affecting the accuracy of the test results. At the same time, some fixtures use manual tightening to fix the insulating cap, requiring operators to be in close contact with potentially live parts, posing a high high-voltage safety risk. In addition, some testing fixtures have limited functions, only able to perform withstand voltage performance testing, and cannot simultaneously test the pressure resistance of the insulating cap, requiring additional equipment and reducing testing efficiency. In view of this, this utility model proposes an insulating cap withstand voltage testing fixture to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an insulating cap withstand voltage test fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An insulating cap withstand voltage test fixture includes a fixed frame, in which a first loop frame, a second loop frame, and a third loop frame are arranged sequentially from top to bottom, and the third loop frame is connected to the ground by bolts;

[0008] An adjustment component is provided on the first circular frame, and a positioning cylinder is provided on the adjustment component. A cable connector is provided on the second circular frame. The adjustment component drives the positioning cylinder to adjust so that the positioning cylinder matches the position of the cable connector. The positioning cylinder descends to press the insulating cap tightly onto the cable connector for testing.

[0009] As an improvement to the above technical solution, a mounting plate is provided on the second circular frame;

[0010] The cable connector is mounted on the mounting plate, and a test cable is provided at the bottom of the mounting plate. The test cable is connected to the cable connector.

[0011] As an improvement to the above technical solution, a fixing plate is provided on the first circular frame, and a fixing through groove is provided on the fixing plate;

[0012] The adjustment component is mounted on the fixed plate, allowing the positioning cylinder to adjust its position within the fixed through slot.

[0013] As an improvement to the above technical solution, the first ring frame is provided with multiple sets of first fixing holes, and the fixing plate is provided with multiple sets of second fixing holes. The multiple sets of first fixing holes are respectively matched with the multiple sets of second fixing holes, and the first fixing holes and the second fixing holes are connected by bolts.

[0014] As an improvement to the above technical solution, guide plates are provided at both ends of the fixing plate, and guide grooves are provided on the guide plates;

[0015] The adjustment assembly includes an adjustment plate, which is slidably disposed between two sets of guide grooves.

[0016] As an improvement to the above technical solution, the adjustment plate is provided with two sets of adjustment slots;

[0017] The fixed plate is provided with two sets of anti-slip rubber plates, which are respectively matched with two sets of adjustment slots. The adjustment slots are provided with adjustment holes, and threaded adjustment bolts are provided in the adjustment holes. The adjustment bolts contact the anti-slip rubber plates, so that the adjustment plates are positioned on the fixed plate.

[0018] As an improvement to the above technical solution, the positioning cylinder is provided with a piston rod, which is slidably disposed in a fixed through groove;

[0019] A rubber pressure plate is provided on the piston rod. The rubber pressure plate moves toward the cable joint to press the insulating cap tightly.

[0020] As an improvement to the above technical solution, a threaded hole is provided on the piston rod;

[0021] A screw is provided on the rubber pressure plate, and the screw is threaded into a threaded hole, so that the rubber pressure plate is connected to the piston rod. A connecting nut is also fixedly provided on the outer wall of the screw.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] By adjusting the position of the component-driven positioning cylinder, the positioning cylinder can be precisely moved to the position that matches the cable connector, ensuring a stable positioning process between the insulating cap and the cable connector, significantly enhancing the stability of the insulating cap during testing, and thus improving the test quality.

[0024] The downward pressing action of the positioning cylinder enables the insulation cap to be automatically and reliably tightened on the cable joint, replacing the traditional manual tightening method. When the cable joint is subjected to high voltage energization test, it avoids the operator from coming into close contact with live parts, effectively isolates the high voltage risk, and greatly improves the personnel safety during the test process.

[0025] After the performance test of the insulating cap is completed, the positioning cylinder continuously applies pressure to complete the pressure resistance test of the insulating cap. No additional equipment is required, which improves the functionality of the tooling and the testing efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the fixed frame of this utility model;

[0028] Figure 3 This is a schematic diagram of the mounting plate of this utility model;

[0029] Figure 4 This is a schematic diagram of the positioning cylinder of this utility model;

[0030] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A;

[0031] Figure 6 This is a schematic diagram of the structure of the rubber pressure plate of this utility model;

[0032] Figure 7 This is a structural schematic diagram of the positioning cylinder of this utility model from another angle;

[0033] Figure 8 This utility model Figure 7 Enlarged structural diagram at point B;

[0034] Figure 9 This is a schematic diagram of the structure of the fixing plate of this utility model.

[0035] In the diagram: 10. Fixed frame; 11. First loop frame; 111. First fixing hole; 12. Second loop frame; 13. Third loop frame; 20. Fixing plate; 21. Second fixing hole; 22. Guide groove; 23. Guide plate; 24. Anti-slip rubber plate; 25. Fixing through groove; 30. Adjustment assembly; 31. Adjusting bolt; 32. Adjustment plate; 33. Adjustment hole; 34. Adjustment groove; 40. Positioning cylinder; 41. Piston rod; 411. Threaded hole; 42. Rubber pressure plate; 43. Screw; 44. Connecting nut; 50. Cable connector; 60. Mounting plate; 61. Test cable. Detailed Implementation

[0036] 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.

[0037] Example:

[0038] like Figure 1-9 As shown, this embodiment proposes an insulating cap withstand voltage test fixture, including a fixed frame 10. The fixed frame 10 is provided with a first loop frame 11, a second loop frame 12 and a third loop frame 13 arranged from top to bottom. The third loop frame 13 is connected to the ground by bolts.

[0039] An adjustment component 30 is provided on the first circular frame 11, and a positioning cylinder 40 is provided on the adjustment component 30. A cable connector 50 is provided on the second circular frame 12. The adjustment component 30 drives the positioning cylinder 40 to adjust so that the positioning cylinder 40 matches the position of the cable connector 50. The positioning cylinder 40 descends to press the insulating cap onto the cable connector 50 for testing.

[0040] In this embodiment, when testing the insulating cap, the insulating cap is inserted into the cable connector 50. Then, the positioning cylinder 40 is moved by the adjusting component 30 until the positioning cylinder 40 is moved to the position of the cable connector 50. Then, the positioning cylinder 40 presses the insulating cap tightly, and the cable connector 50 is energized to test the performance of the insulating cap. After the test is completed, the positioning cylinder 40 continues to apply pressure to test the compressive strength of the insulating cap.

[0041] By adjusting the position of the positioning cylinder 40 driven by the component 30, the positioning cylinder 40 can be moved precisely to the position that matches the cable connector, ensuring the stability of the positioning process of the insulating cap and the cable connector, significantly enhancing the stability of the insulating cap during the test, and thus improving the test quality.

[0042] The downward pressing action of the positioning cylinder 40 realizes the automatic and reliable clamping of the insulating cap on the cable joint, replacing the traditional manual tightening method. When the cable joint is subjected to high voltage energization test, it avoids the operator from coming into close contact with live parts, effectively isolates the high voltage risk, and greatly improves the personnel safety during the test process.

[0043] After the performance test of the insulating cap is completed, the positioning cylinder 40 continuously applies pressure to complete the pressure resistance test of the insulating cap. No additional equipment is required, which improves the functionality of the tooling and the testing efficiency.

[0044] Specifically, a mounting plate 60 is provided on the second circular frame 12;

[0045] The cable connector 50 is mounted on the mounting plate 60, and a test cable 61 is provided at the bottom of the mounting plate 60. The test cable 61 is connected to the cable connector 50.

[0046] In this embodiment, by centrally mounting the cable connectors 50 on an independent mounting plate 60 and fixing the mounting plate 60 to the second circular frame 12, a standardized electrical interface module is formed. This design allows the installation, maintenance, or replacement of the cable connectors 50 and their connecting lines to be carried out independently of other mechanical structures without disassembling the entire tooling body, which significantly improves the maintainability of the equipment and the efficiency of component replacement.

[0047] Specifically, a fixing plate 20 is provided on the first circular frame 11, and a fixing through groove 25 is provided on the fixing plate 20;

[0048] The adjustment component 30 is mounted on the fixed plate 20, so that the positioning cylinder 40 can be adjusted in the fixed through groove 25.

[0049] In this embodiment, the adjustment component 30 is set on the fixed plate 20 as a whole, and the positioning cylinder 40 is displaced in the fixed through groove 25. This realizes the integrated design of the cylinder unit and the guide structure. This layout allows the entire adjustment component 30 and its driven positioning cylinder 40 to be adjusted as a module on the fixed plate 20 along the extension direction of the fixed through groove 25. This allows for flexible adaptation to the positional differences of different models of insulating caps or cable connectors 50, significantly improving the versatility and applicability of the tooling.

[0050] Specifically, the first ring frame 11 has multiple sets of first fixing holes 111, and the fixing plate 20 has multiple sets of second fixing holes 21. The multiple sets of first fixing holes 111 are respectively matched with the multiple sets of second fixing holes 21, and the first fixing holes 111 and the second fixing holes 21 are connected by bolts.

[0051] In this embodiment, the bolts pass through the matching first fixing hole 111 and the second fixing hole 21 to form a multi-point mechanical locking, establishing a rigid connection between the fixing plate 20 and the first circular frame 11. This connection method effectively resists the impact load and vibration generated when the positioning cylinder 40 presses down on the insulating cap, prevents the fixing plate 20 from being displaced or deformed due to force, ensures the accuracy of the motion reference of the adjustment component 30 and the reliability of the pressing action during the test, and ensures the accuracy of the test data.

[0052] Specifically, guide plates 23 are provided at both ends of the fixing plate 20, and guide grooves 22 are provided on the guide plates 23;

[0053] The adjustment assembly 30 includes an adjustment plate 32, which is slidably disposed between two sets of guide grooves 22.

[0054] In this embodiment, the guide plates 23 at both ends and their guide grooves 22 form a parallel and symmetrical double-track constraint system, which precisely limits the movement path of the adjustment plate 32. This design forces the adjustment plate 32 to move in a strictly linear manner along the extension direction of the guide groove 22, completely eliminating the risk of offset or deflection, and ensuring that the positioning cylinder 40 mounted on it can accurately and smoothly move directly above the target cable connector 50, thus ensuring the alignment accuracy and repeatability of the pressing action.

[0055] Specifically, the adjustment plate 32 is provided with two sets of adjustment slots 34;

[0056] The fixed plate 20 is provided with two sets of anti-slip rubber plates 24. The two sets of anti-slip rubber plates 24 are respectively matched with two sets of adjustment grooves 34. The adjustment grooves 34 are provided with adjustment holes 33. The adjustment holes 33 are provided with threaded adjustment bolts 31. The adjustment bolts 31 contact the anti-slip rubber plates 24, so that the adjustment plate 32 is positioned on the fixed plate 20.

[0057] In this embodiment, the anti-slip rubber plate 24 serves as an elastic friction medium, generating a high friction coefficient contact surface when the adjusting bolt 31 is tightened, forming a reliable self-locking positioning. The unique damping characteristics of the rubber material can effectively absorb high-frequency vibrations or instantaneous impacts during equipment operation, preventing the adjusting plate 32 from slipping unexpectedly during the test, ensuring the absolute stability of the positioning cylinder 40 in the pressing state, and ensuring the continuity and data reliability of the high-pressure test.

[0058] Specifically, the positioning cylinder 40 is provided with a piston rod 41, which is slidably disposed in the fixed through groove 25;

[0059] A rubber pressure plate 42 is provided on the piston rod 41. The rubber pressure plate 42 moves toward the cable joint 50 to press the insulating cap.

[0060] In this embodiment, the piston rod 41 is constrained by the rigid guide of the fixed through groove 25, ensuring that its movement trajectory is strictly perpendicular to the plane where the cable connector 50 is located. Combined with the constant pressure output characteristics of the positioning cylinder 40, the rubber pressure plate 42 presses the insulating cap with uniform and vertical downward pressure, completely eliminating the off-center load or tilt that may occur in traditional manual pressing, ensuring that the electrical contact surface between the insulating cap and the cable connector 50 is fully in contact, improving the stability and data accuracy of the test current transmission, and also facilitating continuous pressure on the insulating cap to test its compressive strength.

[0061] Specifically, the piston rod 41 is provided with a threaded hole 411;

[0062] A screw 43 is provided on the rubber pressure plate 42. The screw 43 is threaded into the threaded hole 411, so that the rubber pressure plate 42 is connected to the piston rod 41. A connecting nut 44 is also fixedly provided on the outer wall of the screw 43.

[0063] In this embodiment, the screw 43 and the threaded hole 411 form a standardized mechanical interface. The installation or removal of the screw 43 and the piston rod 41 can be completed simply by rotating the rubber pressure plate 42. When the rubber pressure plate 42 is worn or aged due to long-term pressure or needs to be adapted to different insulating cap specifications, the pressure plate component can be replaced independently without disassembling the positioning cylinder 40 body, which greatly shortens the maintenance time and improves the availability of the equipment.

[0064] 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 fixture for insulating caps, characterized in that: The system includes a fixed frame (10), in which a first loop frame (11), a second loop frame (12), and a third loop frame (13) are arranged sequentially from top to bottom. The third loop frame (13) is connected to the ground by bolts. An adjustment component (30) is provided on the first circular frame (11), and a positioning cylinder (40) is provided on the adjustment component (30). A cable connector (50) is provided on the second circular frame (12). The adjustment component (30) drives the positioning cylinder (40) to adjust so that the positioning cylinder (40) matches the position of the cable connector (50). The positioning cylinder (40) descends to press the insulating cap onto the cable connector (50) for testing.

2. The insulating cap withstand voltage testing fixture according to claim 1, characterized in that: The second circular frame (12) is provided with a mounting plate (60); The cable connector (50) is mounted on the mounting plate (60), and a test cable (61) is provided at the bottom of the mounting plate (60). The test cable (61) is connected to the cable connector (50).

3. The insulating cap withstand voltage testing fixture according to claim 1, characterized in that: A fixing plate (20) is provided on the first circular frame (11), and a fixing through groove (25) is provided on the fixing plate (20); The adjustment component (30) is mounted on the fixed plate (20) so that the positioning cylinder (40) can be adjusted in the fixed through groove (25).

4. The insulating cap withstand voltage test fixture according to claim 3, characterized in that: The first ring frame (11) has multiple sets of first fixing holes (111), and the fixing plate (20) has multiple sets of second fixing holes (21). The multiple sets of first fixing holes (111) are respectively matched with the multiple sets of second fixing holes (21). The first fixing holes (111) and the second fixing holes (21) are connected by bolts.

5. The insulating cap withstand voltage testing fixture according to claim 4, characterized in that: The fixed plate (20) is provided with guide plates (23) at both ends, and guide grooves (22) are provided on the guide plates (23); The adjustment assembly (30) includes an adjustment plate (32) which is slidably disposed between two sets of guide grooves (22).

6. The insulating cap withstand voltage testing fixture according to claim 5, characterized in that: The adjustment plate (32) is provided with two sets of adjustment slots (34); The fixed plate (20) is provided with two sets of anti-slip rubber plates (24), and the two sets of anti-slip rubber plates (24) are respectively matched with the positions of two sets of adjustment grooves (34). The adjustment grooves (34) are provided with adjustment holes (33), and the adjustment holes (33) are provided with threaded adjustment bolts (31). The adjustment bolts (31) contact the anti-slip rubber plates (24), so that the adjustment plate (32) is positioned on the fixed plate (20).

7. The insulating cap withstand voltage testing fixture according to claim 3, characterized in that: The positioning cylinder (40) is provided with a piston rod (41), which is slidably disposed in the fixed through groove (25); A rubber pressure plate (42) is provided on the piston rod (41). The rubber pressure plate (42) moves toward the cable joint (50) to press the insulating cap.

8. The insulating cap withstand voltage testing fixture according to claim 7, characterized in that: The piston rod (41) has a threaded hole (411). A screw (43) is provided on the rubber pressure plate (42), and the screw (43) is threadedly engaged with the threaded hole (411) so that the rubber pressure plate (42) is connected to the piston rod (41). A connecting nut (44) is also fixedly provided on the outer wall of the screw (43).

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