An insulation resistance tester for preventing disconnection of a line

Abstract

The utility model relates to insulating resistance tester technical field discloses an insulating resistance tester of preventing line disengagement, including shell, the top side hinged cover of shell top end, the inside of shell is provided with insulating resistance tester, four positioning blocks are fixed in the periphery of insulating resistance tester upper end surface and the port department, four positioning blocks between detachable fixed have the mounting frame, the inside of mounting frame array is provided with a plurality of anti -off line components for preventing line disengagement, the line terminal of waiting for testing is connected with the port of insulating resistance tester, in the connecting process, the line terminal will pass through the anti -off line component, through setting up the anti -off line component to the certain clamping and positioning effect of line terminal, prevent the line from accidentally disengaging in the testing process, improved the stability and reliability of testing.

Description

Technical Field

[0001] This utility model relates to the technical field of insulation resistance testers, specifically to an insulation resistance tester that prevents line disconnection. Background Technology

[0002] In the field of insulation performance testing of electrical equipment, insulation resistance testers serve as core tools, playing a crucial role in assessing the insulation status of equipment and preventing electrical faults. Traditional insulation resistance testers measure the insulation resistance of the tested object under high voltage by outputting a high-voltage DC signal, providing critical data support for equipment maintenance, safety assessment, and quality control.

[0003] Existing devices have some drawbacks in use. For example, the connection between the test leads of traditional insulation resistance testers and the instrument body or the device under test mostly relies on physical plug-in interfaces and lacks an effective mechanical fixing structure. In the test site, equipment vibration, environmental interference or human error (such as pulling the cable) can easily cause the connection to loosen or even break, causing test interruption. This not only prolongs the test time, but also easily leads to test interruption or inaccurate data. Utility Model Content

[0004] The purpose of this invention is to provide an insulation resistance tester that prevents line disconnection, thereby solving the problem that the connection between the test leads and the instrument body or the device under test mostly relies on physical plug-in interfaces and lacks an effective mechanical fixing structure.

[0005] This utility model provides the following technical solution: an insulation resistance tester for preventing line detachment, including a housing, a top cover hinged to one side of the top of the housing, an insulation resistance tester disposed inside the housing, four positioning blocks fixed on the upper surface of the insulation resistance tester and around the port, a mounting frame detachably fixed between the four positioning blocks, and multiple anti-detachment components for preventing line detachment arranged in an array inside the mounting frame.

[0006] As a preferred embodiment of the above technical solution, the anti-derailment component includes an array of fixed clamps fixed to the inner side wall of the mounting frame. The side wall of the mounting frame away from the fixed clamps has threaded holes. A suitable threaded rod is inserted into the inner side of the threaded holes. A knob is fixedly connected to the end of the threaded rod located outside the mounting frame. A movable clamp is rotatably connected to the end of the threaded rod located inside the mounting frame.

[0007] As a preferred embodiment of the above technical solution, two limiting slide rods are fixedly connected to the side wall of the movable clamping plate near the threaded rod, and limiting slide holes are opened on the side wall of the mounting frame. Both limiting slide rods pass through the limiting slide holes and slide within the limiting slide holes.

[0008] As a preferred embodiment of the above technical solution, each of the four positioning blocks is provided with a through hole, and each of the four corners of the mounting frame is provided with a mounting hole, and a fixing bolt is inserted into the through hole and the mounting hole.

[0009] As a preferred embodiment of the above technical solution, the clamping surfaces of both the fixed clamping plate and the movable clamping plate are arc-shaped.

[0010] As a preferred embodiment of the above technical solution, rubber anti-slip pads are adhered to the side walls of both the fixed clamp and the movable clamp near the port.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the line terminal to be tested is connected to the port of the insulation resistance tester. During the connection process, the line terminal passes through the anti-detachment component. By setting the anti-detachment component, the line terminal is clamped and positioned to prevent the line from accidentally detaching during the test, thereby improving the stability and reliability of the test. Attached Figure Description

[0012] Figure 1 A first-view schematic diagram of the overall structure of an insulation resistance tester designed to prevent line disconnection; Figure 2 This is an enlarged structural diagram of the anti-derailment component; Figure 3 A schematic diagram of the explosion structure of the anti-derailment component; Figure 4 This is a second-view schematic diagram of the overall structure of an insulation resistance tester designed to prevent line disconnection.

[0013] In the diagram: 1. Outer shell; 11. Top cover; 12. Insulation resistance tester; 13. Positioning block; 131. Through hole; 14. Mounting frame; 141. Mounting hole; 2. Anti-derailment assembly; 21. Fixing clamp; 22. Threaded hole; 23. Threaded rod; 24. Knob; 25. Movable clamp; 31. Limiting slide bar; 32. Limiting slide hole; 41. Fixing bolt; 51. Rubber anti-slip pad. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Example like Figures 1-4As shown, this utility model provides a technical solution: an insulation resistance tester for preventing line detachment, including a housing 1, a top cover 11 hinged to one side of the top of the housing 1, an insulation resistance tester 12 disposed inside the housing 1, four positioning blocks 13 fixed on the upper surface of the insulation resistance tester 12 and around the port, and a mounting frame 14 detachably fixed between the four positioning blocks 13, and multiple anti-detachment components 2 arranged in an array inside the mounting frame 14 for preventing line detachment. In specific use, the line terminal to be tested is connected to the port of the insulation resistance tester 12. During the connection process, the line terminal will pass through the anti-detachment components 2. By setting the anti-detachment components, the line terminal is clamped and positioned to a certain extent, preventing the line from accidentally detaching during the test.

[0016] As one implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the anti-derailment assembly 2 includes fixed clamping plates 21 arrayed and fixed to the inner wall of the mounting frame 14. A threaded hole 22 is provided on the side wall of the mounting frame 14 away from the fixed clamping plates 21. A suitable threaded rod 23 is inserted into the inner side of the threaded hole 22. A knob 24 is fixedly connected to the end of the threaded rod 23 located outside the mounting frame 14, and a movable clamping plate 25 is rotatably connected to the end of the threaded rod 23 located inside the mounting frame 14. The clamping surfaces of both the fixed clamping plate 21 and the movable clamping plate 25 are arc-shaped structures. The fixed clamping plate 21 and the movable clamping plate 25 are close to each other. Rubber anti-slip pads 51 are adhered to the sidewalls near the port. During use, the terminal to be tested is connected to the port of the insulation resistance tester 12. At this point, the terminal is positioned between the fixed clamp 21 and the movable clamp 25. The operator rotates the knob 24, which in turn rotates the threaded rod 23. The threaded rod 23 moves along the threaded hole 22 towards the inside of the mounting frame 14. As the threaded rod 23 moves, the movable clamp 25 gradually approaches the fixed clamp 21, thus clamping the terminal. The operator can adjust the clamping force by rotating the knob 24 according to the thickness of the wire and actual needs, ensuring the terminal is firmly clamped without damaging the wire due to excessive clamping force. After clamping, the insulation resistance tester 12 is tested according to its normal operating procedure. During the test, the arc-shaped clamping surfaces of the fixed clamp 21 and the movable clamp 25, along with the rubber anti-slip pads 51, provide good clamping effect and friction, preventing the terminal from detaching due to vibration or other factors during the test.

[0017] As one implementation method in this embodiment, such as Figure 3As shown, two limiting slide rods 31 are fixedly connected to the side wall of the movable clamping plate 25 near the threaded rod 23. Limiting slide holes 32 are opened on the side wall of the mounting frame 14. Both limiting slide rods 31 pass through the limiting slide holes 32 and slide within the limiting slide holes 32. In order to improve the stability of the translation of the movable clamping plate 25, the cooperation between the limiting slide rods 31 and the limiting slide holes 32 provides precise guidance for the movement of the movable clamping plate 25, so that the movable clamping plate 25 can only move closer to or away from the fixed clamping plate 21 in a straight line, and will not rotate due to rotation. If there is no cooperation between the limiting slide rods 31 and the limiting slide holes 32, the movable clamping plate 25 can only be manually controlled to prevent rotation during the rotation of the threaded rod 23.

[0018] As one implementation method in this embodiment, such as Figure 3 As shown, each of the four positioning blocks 13 has a through hole 131, and each of the four corners of the mounting frame 14 has a mounting hole 141. Fixing bolts 41 are inserted into the through holes 131 and the mounting holes 141. In actual use, when it is necessary to set the circuit anti-derailment for the insulation resistance tester 12, the operator first places the mounting frame 14 in the area enclosed by the four positioning blocks 13 inside the outer shell 1, so that the four corners of the mounting frame 14 correspond to the four positioning blocks 13 respectively. Then, the fixing bolts 41 are passed through the through holes 131 on the positioning blocks 13 and the mounting holes 141 on the corner side walls of the mounting frame 14 in sequence. After the fixing bolts 41 have completely passed through the through holes 131 and the mounting holes 141, the fixing bolts 41 are tightened by using a suitable tool (such as a wrench) or manually, so that the mounting frame 14 is firmly fixed on the four positioning blocks 13.

[0019] Working Principle: In use, first connect the terminal of the line to be tested to the port of the insulation resistance tester 12. At this time, the line terminal is located between the fixed clamp 21 and the movable clamp 25. The operator rotates the knob 24, which drives the threaded rod 23 to rotate. The threaded rod 23 moves along the threaded hole 22 towards the inside of the mounting frame 14. As the threaded rod 23 moves, the movable clamp 25 gradually approaches the fixed clamp 21, thereby clamping the line terminal. The operator can adjust the clamping force by rotating the knob 24 according to the thickness of the line and actual needs, ensuring that the line terminal is firmly clamped without damaging the line due to excessive clamping force. After the line is clamped, perform the test according to the normal operating procedure of the insulation resistance tester 12.

[0020] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An insulation resistance tester for preventing line disconnection, comprising a housing (1), a top cover (11) hinged to one side of the top of the housing (1), and an insulation resistance tester (12) disposed inside the housing (1), characterized in that: The insulation resistance tester (12) has four positioning blocks (13) fixed on its upper surface and around the port. A mounting frame (14) is detachably fixed between the four positioning blocks (13). Multiple anti-derailment components (2) for preventing line detachment are arranged in an array inside the mounting frame (14). Each of the four positioning blocks (13) has a through hole (131), and each of the four corners of the mounting frame (14) has a mounting hole (141) on its side wall. Fixing bolts (41) are inserted into the through holes (131) and mounting holes (141).

2. The insulation resistance tester of claim 1, wherein: The anti-derailment assembly (2) includes a fixed clamping plate (21) arrayed and fixed on the inner side wall of the mounting frame (14). The mounting frame (14) has a threaded hole (22) on the side wall away from the fixed clamping plate (21). A suitable threaded rod (23) is inserted into the inner side of the threaded hole (22). A knob (24) is fixedly connected to the end of the threaded rod (23) located outside the mounting frame (14). A movable clamping plate (25) is rotatably connected to the end of the threaded rod (23) located inside the mounting frame (14).

3. The insulation resistance tester of claim 2, wherein: Two limiting slide rods (31) are fixedly connected to the side wall of the movable clamp (25) near the threaded rod (23). Limiting slide holes (32) are opened on the side wall of the mounting frame (14). The two limiting slide rods (31) pass through the limiting slide holes (32) and slide within the limiting slide holes (32).

4. The insulation resistance tester of claim 2, wherein: The clamping surfaces of both the fixed clamping plate (21) and the movable clamping plate (25) are arc-shaped.

5. The insulation resistance tester of claim 2, wherein: Rubber anti-slip pads (51) are glued to the side walls of both the fixed clamp (21) and the movable clamp (25) near the port.

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