Test fixture for detecting electric power insulator fixture
By designing a test fixture for testing power insulator clamps with detachable components and limiting structures, the problem of complex disassembly of traditional fixtures was solved, enabling rapid disassembly and stable installation, and improving testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东齐航电气有限公司
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-19
AI Technical Summary
The disassembly and replacement process of traditional test fixtures for testing power insulator clamps is complicated, which leads to longer operation time and reduced replacement efficiency.
A test fixture including disassembly and assembly components was designed. The test fixture body can be easily disassembled and installed by pressing the pressing block. It is firmly fixed by the tight fit of the limiting ball and the limiting hole, and the position is adjusted by combining a servo motor and a bidirectional lead screw.
It greatly shortens the time for changing test fixtures, improves work efficiency, and ensures the stability of the fixtures during the testing process, thereby improving the accuracy and reliability of the test results.
Smart Images

Figure CN224263269U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulator clamp technology, specifically a test fixture for testing power insulator clamps. Background Technology
[0002] Electrical safety tools are indispensable protective equipment for electrical personnel engaged in electrical installation, maintenance, emergency repair, upkeep, and inspection. Due to their wide use and important role in the power system, they are referred to by the industry as the "last line of defense" for the power grid. Therefore, ensuring the qualified quality of electrical safety tools and conducting regular preventive tests plays a crucial role in ensuring the safe operation of the power grid and the safety of personnel.
[0003] Traditional test fixtures are often installed in a fixed manner. Disassembling or replacing the test fixture usually requires complex steps and tools, which not only increases the difficulty of operation but also prolongs the operation time, thereby reducing the efficiency of changing test fixtures.
[0004] Therefore, those skilled in the art have provided a test fixture for testing electrical insulator clamps to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to provide a test fixture for testing electrical insulator clamps, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A test fixture for testing electrical insulator clamps includes a connecting base. The connecting base has an internal disassembly and assembly assembly, which includes a limiting hole located inside the connecting base. A test fixture body is located on one side of the connecting base, and a connecting plate is fixedly connected to the other side of the test fixture body. A limiting cylinder is connected inside the connecting plate, and a fixing disc is fixedly connected inside the limiting cylinder. A through hole is formed inside the fixing disc, and a connecting rod is movably connected inside the through hole. A return spring is sleeved on the side surface of the connecting rod, a pressing block is fixedly connected to the top of the connecting rod, and a conical block is fixedly connected to the bottom of the connecting rod. A ball groove is formed on the side surface of the limiting cylinder, and a limiting ball is connected inside the ball groove.
[0008] As a further embodiment of this utility model: a fixing frame is provided at the bottom of the connecting seat, and a fixing bracket is fixedly connected to the top of the fixing frame. The fixing bracket is U-shaped, and a rotating hole is provided on one side of the inner wall of the fixing bracket.
[0009] As a further embodiment of this utility model: a servo motor is fixedly connected to one side of the fixing frame, a bidirectional lead screw is fixedly connected to the transmission end of the servo motor, and a threaded slider is threaded onto the side surface of the bidirectional lead screw.
[0010] As a further improvement of this utility model: a base box is provided at the bottom of the fixed frame, a fixed column is fixedly connected to the top of the base box, and a caster wheel is fixedly connected to the bottom of the base box.
[0011] As a further embodiment of this utility model: the interior of the limiting hole is provided with a protruding block, the number of the limiting holes is four and they are symmetrically distributed, the test fixture body is symmetrically distributed, and the number of the limiting cylinders is four and they are symmetrically distributed.
[0012] As a further embodiment of this utility model: the diameter of the reset spring is larger than the diameter of the through hole, the ball grooves are symmetrically distributed, and the limiting balls are symmetrically distributed.
[0013] As a further embodiment of this invention: the diameter of the limiting ball is larger than the diameter of the opening of the ball groove, and the limiting ball partially protrudes from the opening of the ball groove.
[0014] As a further embodiment of this utility model: the internal thread of the threaded slider is adapted to the bidirectional lead screw, and the number of the threaded sliders is four and they are symmetrically distributed.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. By installing and disassembling the assembly, the staff can easily disassemble the test fixture body by simply pressing the pressing block. Then, the appropriate test fixture body is selected according to different insulator clamps. After completion, the pressing block is pressed again to complete the installation. The whole process does not require complicated tools, which greatly shortens the time for changing test fixtures, improves work efficiency, and enables the testing work to quickly adapt to the testing needs of different insulator clamps.
[0017] 2. After the test fixture body is installed, the protruding part of the limiting ball fits tightly with the protruding block on the inner wall of the limiting hole, thus firmly fixing the test fixture body. Compared with the loosening problem that may occur with traditional fixed connections, this can effectively prevent the test fixture body from becoming loose or falling off during the testing process, ensuring the smooth progress of the testing work and improving the accuracy and reliability of the test results. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a test fixture for testing electrical insulator clamps.
[0019] Figure 2This is a top view schematic diagram of a test fixture for testing electrical insulator clamps.
[0020] Figure 3 This is a test fixture for testing electrical insulator clamps. Figure 2 Enlarged structural diagram at point A in the middle.
[0021] Figure 4 This is a schematic diagram of the assembly and disassembly components of a test fixture for testing electrical insulator clamps.
[0022] Figure 5 This is a cross-sectional structural diagram of the assembly and disassembly components of a test fixture for testing electrical insulator clamps.
[0023] Figure 6 This is a test fixture for testing electrical insulator clamps. Figure 5 Enlarged structural diagram at point B.
[0024] In the diagram: 1. Connecting seat; 2. Assembly / disassembly assembly; 201. Limiting hole; 202. Test fixture body; 203. Connecting plate; 204. Limiting cylinder; 205. Fixing plate; 206. Through hole; 207. Connecting rod; 208. Return spring; 209. Pressing block; 210. Conical block; 211. Ball groove; 212. Limiting ball; 3. Fixing frame; 4. Fixing bracket; 5. Rotary hole; 6. Servo motor; 7. Two-way lead screw; 8. Threaded slider; 9. Base box; 10. Fixing column; 11. Caster wheel. Detailed Implementation
[0025] 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.
[0026] Example 1
[0027] Reference Figure 1 - Figure 6This embodiment provides a test fixture for testing power insulator clamps, including a connecting base 1. A disassembly and assembly assembly 2 is disposed inside the connecting base 1. The disassembly and assembly assembly 2 includes a limiting hole 201, which is formed inside the connecting base 1. A test fixture body 202 is disposed on one side of the connecting base 1, and a connecting plate 203 is fixedly connected to the other side of the test fixture body 202. A limiting cylinder 204 is connected inside the connecting plate 203, and a fixing disc 205 is fixedly connected inside the limiting cylinder 204. An internal through hole 206 is provided, and a connecting rod 207 is movably connected inside the through hole 206. A return spring 208 is sleeved on the side surface of the connecting rod 207. A pressing block 209 is fixedly connected to the top of the connecting rod 207, and a conical block 210 is fixedly connected to the bottom of the connecting rod 207. A ball groove 211 is provided on the side surface of the limiting cylinder 204, and a limiting ball 212 is connected inside the ball groove 211. A fixing frame 3 is provided at the bottom of the connecting seat 1, and a fixing bracket 4 is fixedly connected to the top of the fixing frame 3. The fixing bracket 4 is U-shaped. The fixture has a rotating hole 5 on one side of its inner wall. A servo motor 6 is fixedly connected to one side of the fixture 4. A bidirectional lead screw 7 is fixedly connected to the transmission end of the servo motor 6. A threaded slider 8 is threaded onto the side surface of the bidirectional lead screw 7. When different insulator clamps need to be tested, pressing the pressing block 209 causes the connecting rod 207 to move downwards under force, compressing the return spring 208. At the same time, the conical block 210 also descends, no longer pushing the limit ball 212. The operator can then pull it upwards to test the clamp. The main body 202 is disassembled. A suitable test fixture main body 202 is selected according to different insulator clamps. Press the pressing block 209 to allow the limiting cylinder 204 to be smoothly inserted into the limiting hole 201. Release the pressing block 209. Under the action of the return spring 208, the conical block 210 moves upward. Due to the action of the conical block 210, the limiting ball 212 moves out part of its own length. The protruding part of the limiting ball 212 cooperates with the protruding block on the inner wall of the limiting hole 201 to fix the test fixture main body 202.
[0028] Example 2
[0029] Reference Figure 1 - Figure 6This embodiment is based on the previous embodiment, but differs in that a base box 9 is provided at the bottom of the fixed frame 3, a fixed post 10 is fixedly connected to the top of the base box 9, and a caster wheel 11 is fixedly connected to the bottom of the base box 9. A protruding block is provided inside the limiting hole 201. There are four limiting holes 201 symmetrically distributed. The test fixture body 202 is symmetrically distributed. There are four limiting cylinders 204 symmetrically distributed. The diameter of the return spring 208 is larger than the diameter of the through hole 206. The ball grooves 211 are symmetrically distributed. The limiting balls 212 are symmetrically distributed. The diameter of the limiting balls 212 is larger than the diameter of the opening of the ball groove 211, and part of the limiting balls 212 protrudes from the ball groove 211. The opening of the threaded slider 8 is adapted to the internal thread of the bidirectional lead screw 7. There are four threaded sliders 8, which are symmetrically distributed. During use, the casters 11 at the bottom of the base box 9 allow the entire device to move easily within the work area to the position where the insulator clamp needs to be tested. The servo motor 6 is started, and its transmission end drives the bidirectional lead screw 7 to rotate. Since the internal thread of the threaded slider 8 is adapted to the bidirectional lead screw 7, when the bidirectional lead screw 7 rotates, the four symmetrically distributed threaded sliders 8 will move in relative or opposite directions along the side surface of the bidirectional lead screw 7. The movement of the threaded sliders 8 will then drive the test fixture body 202 to adjust its position and perform a tensile test on the insulator clamp.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0031] 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 test fixture for testing electrical insulator clamps, comprising a connecting base (1), characterized in that, The connecting seat (1) is internally provided with a disassembly and assembly assembly (2), which includes a limiting hole (201) located inside the connecting seat (1). A test fixture body (202) is provided on one side of the connecting seat (1), and a connecting plate (203) is fixedly connected to the other side of the test fixture body (202). A limiting cylinder (204) is connected inside the connecting plate (203), and a fixing disc (205) is fixedly connected inside the limiting cylinder (204). The fixed plate (205) has a through hole (206) inside, and a connecting rod (207) is movably connected inside the through hole (206). A return spring (208) is sleeved on the side surface of the connecting rod (207). A pressing block (209) is fixedly connected to the top of the connecting rod (207), and a conical block (210) is fixedly connected to the bottom of the connecting rod (207). A ball groove (211) is opened on the side surface of the limiting cylinder (204), and a limiting ball (212) is connected inside the ball groove (211).
2. The test fixture for testing power insulator clamps according to claim 1, characterized in that, The bottom of the connecting seat (1) is provided with a fixing frame (3), and the top of the fixing frame (3) is fixedly connected with a fixing bracket (4). The fixing bracket (4) is U-shaped, and a rotating hole (5) is opened on one side of the inner wall of the fixing bracket (4).
3. The test fixture for testing power insulator clamps according to claim 2, characterized in that, A servo motor (6) is fixedly connected to one side of the fixed frame (4), and a bidirectional lead screw (7) is fixedly connected to the transmission end of the servo motor (6). A threaded slider (8) is threaded onto the side surface of the bidirectional lead screw (7).
4. The test fixture for testing power insulator clamps according to claim 2, characterized in that, The bottom of the fixed frame (3) is provided with a base box (9), the top of the base box (9) is fixedly connected with a fixed column (10), and the bottom of the base box (9) is fixedly connected with a caster wheel (11).
5. The test fixture for testing power insulator clamps according to claim 1, characterized in that, The limiting hole (201) has a protruding block inside. There are four limiting holes (201) in total, and they are symmetrically distributed. The test fixture body (202) is symmetrically distributed. There are four limiting cylinders (204) in total, and they are symmetrically distributed.
6. The test fixture for testing power insulator clamps according to claim 1, characterized in that, The diameter of the reset spring (208) is larger than the diameter of the through hole (206), the ball grooves (211) are symmetrically distributed, and the limiting balls (212) are symmetrically distributed.
7. The test fixture for testing power insulator clamps according to claim 1, characterized in that, The diameter of the limiting ball (212) is larger than the diameter of the opening of the ball groove (211), and the limiting ball (212) partially protrudes from the opening of the ball groove (211).
8. The test fixture for testing power insulator clamps according to claim 3, characterized in that, The internal thread of the threaded slider (8) is adapted to the bidirectional lead screw (7), and there are four threaded sliders (8) in a symmetrical distribution.