Lightning protection high-voltage insulation resistance tester

Abstract

The utility model discloses a lightning-protection high-voltage insulation resistance tester, relates to the technical field of resistance detection, and provides the following scheme aiming at the problems proposed in the background technology: the lightning-protection high-voltage insulation resistance tester comprises a protection shell and a tester body, the tester body is fixedly arranged on the inner bottom wall of the protection shell, the front surface of the tester body is fixedly connected with two leads, and the two leads are connected with a power supply; the end, away from the tester body, of the wire is fixedly connected with a wiring port, the upper surface of the protection shell is rotationally connected with a protection assembly, two circular holes are formed in the upper surface of the protection shell, and the inner walls of the two circular holes are rotationally connected with winding assemblies. According to the utility model, through the arrangement of the wire winding assembly, two groups of wires can be separated through the wire winding rod and the circular cylinders during use, the two circular cylinders can completely isolate the wires during detection, the two groups of wires are ensured not to be in contact, the stability and the safety during detection can be ensured, and the detection efficiency is improved. And the wire can be protected when not in use.

Description

Technical Field

[0001] This utility model relates to the field of resistance detection technology, and in particular to a lightning protection high voltage insulation resistance tester. Background Technology

[0002] A resistance tester is an instrument used to measure the conductivity of an object. Resistance testers are widely used in electrical safety inspections and grounding engineering completion acceptance. There are many types, including grounding resistance testers, insulation resistance testers, DC resistance meters, surface resistance testers, and loop resistance testers. Among them, insulation resistance testers are used in high-voltage lightning protection environments and are a common testing device.

[0003] When using existing high-voltage insulation resistance testers for lightning protection, the tester is usually held directly to the designated location, and the two sets of wires are connected to the equipment before testing. However, in actual testing, the two sets of wires do not have any protective structure, and they are prone to contact and collision. This can easily affect the stability and safety of the resistance test process, posing certain safety hazards. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lightning protection high-voltage insulation resistance tester.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-voltage insulation resistance tester for lightning protection includes a protective housing and a tester body. The tester body is fixedly installed on the inner bottom wall of the protective housing. Two wires are fixedly connected to the front of the tester body. The ends of the wires away from the tester body are fixedly connected to a wiring port. A protective component is rotatably connected to the upper surface of the protective housing. Two circular holes are opened on the upper surface of the protective housing. A winding component is rotatably connected to the inner wall of each of the two circular holes. The winding component includes a winding rod. A circular disk is fixedly connected to the top of the winding rod. A dial is fixedly connected to the top of the circular disk. A locking bolt is threaded onto the upper surface of the circular disk. Two strip grooves are opened on the front of the protective housing. Rotating shafts are rotatably connected to the inner top and bottom walls of the two strip grooves. Circular cylinders are fixedly connected to the opposite ends of the two rotating shafts. Limit grooves are opened on the surface of the circular cylinders. A movable groove is opened on the front of the protective housing at a position corresponding to the two strip grooves. A pressure plate is slidably connected to the inner wall of the movable groove. Two sliding rods are fixedly connected to the inner bottom wall of the movable groove. A first spring is sleeved on the surface of each sliding rod. A limit plug is fixedly connected to the lower surface of the pressure plate.

[0007] The protective assembly includes a top cover, a handle fixedly connected to the upper surface of the top cover, a rectangular groove on the front of the top cover, a slider slidably connected to the inner wall of the rectangular groove, a positioning plate fixedly connected to the front of the slider, a toggle plate fixedly connected to the upper surface of the slider, a second spring fixedly connected to the inner rear wall of the rectangular groove, and a positioning groove adapted to the positioning plate on the inner wall of the protective housing.

[0008] Preferably, the upper surface of the protective housing has two threaded grooves that are adapted to the locking bolts.

[0009] Preferably, the wire is wound around the surface of the winding rod and passes through the cylindrical tube. The terminal is connected to one end of the cylindrical tube. Rotating the dial can drive the winding rod to rotate through the cylindrical tube, thereby pulling the wire out from the front end of the cylindrical tube.

[0010] Preferably, the pressure plate is slidably connected to the surfaces of the two slide rods, and the top end of the first spring overlaps with the inner top wall of the moving groove, and the bottom end overlaps with the upper surface of the pressure plate. When the pressure plate moves upward, it can move on the surfaces of the two slide rods and compress the two first springs to deform them.

[0011] Preferably, the limiting rod extends into the interior of the strip groove and is adapted to the limiting groove on the surface of the cylindrical cylinder. After the limiting rod is inserted into the limiting groove, it can lock the position of the cylindrical cylinder in the strip groove, ensuring that the cylindrical cylinder will not shake randomly when the protective shell is moved.

[0012] Preferably, the end of the second spring away from the rear wall of the rectangular groove is fixedly connected to the back of the slider. The upper surface of the top cover is provided with a movable groove that matches the toggle plate. When the slider moves backward, it can squeeze the second spring to deform it. Under normal circumstances, the second spring can press the positioning plate into the positioning groove by its own force.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By setting up the winding assembly, the two sets of wires can be separated by the winding rod and the cylinder respectively during use. During the testing process, the two cylinders can completely isolate the wires, ensuring that the two sets of wires will not come into contact or collide. This ensures the stability and safety of the testing process and provides protection for the wires when they are not in use.

[0015] 2. The protective components serve as a protective structure for the tester body during use. By inserting the positioning plate into the positioning slot, the upper part of the protective shell is shielded, ensuring that the tester body is not affected by the outside. It also makes it convenient to carry the protective shell and the tester body with you. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a lightning protection high-voltage insulation resistance tester proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the winding assembly of a lightning protection high-voltage insulation resistance tester proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the front section structure of the protective shell of a lightning protection high voltage insulation resistance tester proposed in this utility model;

[0019] Figure 4 This is a side cross-sectional view of the protective housing structure of a lightning protection high-voltage insulation resistance tester proposed in this utility model.

[0020] In the diagram: 1. Protective housing; 2. Tester body; 3. Wire; 4. Wiring port; 5. Winding rod; 6. Circular disc; 7. Dial; 8. Locking bolt; 9. Rotating shaft; 10. Circular cylinder; 11. Pressure plate; 12. Slide rod; 13. First spring; 14. Limiting rod; 15. Top cover; 16. Handle; 17. Slider; 18. Positioning plate; 19. Actuating plate; 20. Second spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, referring to Figure 1 , Figure 2 and Figure 3 A high-voltage insulation resistance tester for lightning protection includes a protective housing 1 and a tester body 2. The tester body 2 is fixedly installed on the inner bottom wall of the protective housing 1. Two wires 3 are fixedly connected to the front of the tester body 2. A wiring port 4 is fixedly connected to the end of the wires 3 away from the tester body 2. A protective component is rotatably connected to the upper surface of the protective housing 1. Two circular holes are opened on the upper surface of the protective housing 1. A winding component is rotatably connected to the inner wall of each of the two circular holes.

[0023] The winding assembly includes a winding rod 5, a circular disk 6 is fixedly connected to the top of the winding rod 5, a dial 7 is fixedly connected to the top of the circular disk 6, a locking bolt 8 is threadedly connected to the upper surface of the circular disk 6, two threaded grooves that are compatible with the locking bolt 8 are opened on the upper surface of the protective housing 1, two strip grooves are opened on the front of the protective housing 1, a rotating shaft 9 is rotatably connected to the inner top wall and inner bottom wall of the two strip grooves, a circular cylinder 10 is fixedly connected to the opposite ends of the two rotating shafts 9, the wire 3 is wound around the surface of the winding rod 5 and passes through the circular cylinder 10, and the wiring port 4 overlaps with one end of the circular cylinder 10.

[0024] It should be noted that there is a sufficient length of wire 3 reserved between the winding rod 5 and the tester body 2, which can ensure that the wire 3 is pulled out from the front end of the cylindrical tube 10 without the wire 3 becoming detached from the tester body 2.

[0025] A limiting groove is formed on the surface of the cylindrical tube 10. A movable groove is formed on the front of the protective shell 1 at a position corresponding to the two strip grooves. A pressure plate 11 is slidably connected to the inner wall of the movable groove. Two sliding rods 12 are fixedly connected to the inner bottom wall of the movable groove. The pressure plate 11 is slidably connected to the surfaces of the two sliding rods 12. A first spring 13 is sleeved on the surface of each of the two sliding rods 12. The top end of the first spring 13 overlaps with the inner top wall of the movable groove, and the bottom end overlaps with the upper surface of the pressure plate 11. A limiting rod 14 is fixedly connected to the lower surface of the pressure plate 11. The limiting rod 14 extends into the interior of the strip groove and is adapted to the limiting groove on the surface of the cylindrical tube 10.

[0026] When the tester body 2 is needed, lift the two pressure plates 11 upwards, so that the pressure plates 11 press the first spring 13 on the surface of the slide rod 12, and at the same time drive the limit rod 14 to disengage from the limit groove, so that the two cylindrical cylinders 10 are no longer restricted. At this time, turn the two cylindrical cylinders 10 out of the strip groove, unscrew the locking bolt 8, turn the dial 7 to drive the winding rod 5 to rotate through the circular disc 6, and at the same time pull the wiring port 4 forward to pull the wire 3 out of the cylindrical cylinder 10, which is convenient for connecting the equipment. The two cylindrical cylinders 10 can ensure that the two sets of wires 3 will not come into contact or collide during the test, ensuring the stability and safety of the test, and can also protect the wires 3 when not in use.

[0027] Example 2: Refer to Figure 1 and Figure 4 The protective assembly includes a top cover 15, a handle 16 fixedly connected to the upper surface of the top cover 15, a rectangular groove on the front of the top cover 15, a slider 17 slidably connected to the inner wall of the rectangular groove, a positioning plate 18 fixedly connected to the front of the slider 17, a toggle plate 19 fixedly connected to the upper surface of the slider 17, a second spring 20 fixedly connected to the inner rear wall of the rectangular groove, and the end of the second spring 20 away from the inner rear wall of the rectangular groove fixedly connected to the back of the slider 17. The upper surface of the top cover 15 has an active groove adapted to the toggle plate 19, and the inner wall of the protective housing 1 has a positioning groove adapted to the positioning plate 18.

[0028] When the positioning plate 18 is inserted into the positioning slot, it can lock the top cover 15. At this time, the hand handle 16 can be used to move the protective shell 1, making it convenient to carry the tester body 2. When the tester body 2 needs to be used, the positioning plate 18 can be disengaged from the positioning slot by pushing the toggle plate 19 backward, which is highly flexible.

[0029] Working principle: When the resistance tester is needed, first place the protective housing 1 in a fixed position, push the actuating plate 19 backward, causing the slider 17 to move the positioning plate 18 backward, thus disengaging it from the positioning groove. At this time, open the top cover 15 to expose the tester body 2. Lift the two pressure plates 11 upward, causing the pressure plates 11 to move the limiting rod 14 up and out of the limiting groove. Then, rotate the two cylindrical tubes 10 out of the strip groove, simultaneously loosen the locking bolt 8, rotate the dial 7, and simultaneously pull the wiring port 4 forward, causing the wire 3 to extend from the surface of the winding rod 5 and the cylindrical tube 10. The two cylindrical tubes 10 ensure that the two wires 3 will not come into contact or collide during the testing phase, thus ensuring testing stability and safety. After use, the wires 3 can be stored on the surface of the winding rod 5, preventing them from being exposed and improving the protection of the wires 3. After use, the positioning plate 18 is reinserted into the positioning groove, and the second spring 20 can press the positioning plate 18 into the positioning groove through its own force, thereby locking the top cover 15. The protective shell 1 and the tester body 2 can be moved by holding the handle 16, which provides high flexibility.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lightning protection high-voltage insulation resistance tester, comprising a protective housing (1) and a tester body (2), wherein the tester body (2) is fixedly installed on the inner bottom wall of the protective housing (1), two wires (3) are fixedly connected to the front of the tester body (2), and a wiring port (4) is fixedly connected to one end of the wires (3) away from the tester body (2), a protective component is rotatably connected to the upper surface of the protective housing (1), and two circular holes are opened on the upper surface of the protective housing (1), and a winding component is rotatably connected to the inner wall of each of the two circular holes, characterized in that, The winding assembly includes a winding rod (5), a circular disk (6) is fixedly connected to the top of the winding rod (5), a dial (7) is fixedly connected to the top of the circular disk (6), a locking bolt (8) is threadedly connected to the upper surface of the circular disk (6), two strip grooves are opened on the front of the protective shell (1), a rotating shaft (9) is rotatably connected to the inner top wall and inner bottom wall of the two strip grooves, a circular cylinder (10) is fixedly connected to the opposite end of the two rotating shafts (9), a limit groove is opened on the surface of the circular cylinder (10), a moving groove is opened on the front of the protective shell (1) at the position corresponding to the two strip grooves, a pressure plate (11) is slidably connected to the inner wall of the moving groove, two sliding rods (12) are fixedly connected to the inner bottom wall of the moving groove, a first spring (13) is sleeved on the surface of the two sliding rods (12), and a limit plug (14) is fixedly connected to the lower surface of the pressure plate (11). The protective assembly includes a top cover (15), a handle (16) is fixedly connected to the upper surface of the top cover (15), a rectangular groove is opened on the front of the top cover (15), a slider (17) is slidably connected to the inner wall of the rectangular groove, a positioning plate (18) is fixedly connected to the front of the slider (17), a toggle plate (19) is fixedly connected to the upper surface of the slider (17), a second spring (20) is fixedly connected to the inner rear wall of the rectangular groove, and a positioning groove adapted to the positioning plate (18) is opened on the inner wall of the protective shell (1).

2. The lightning protection high-voltage insulation resistance tester according to claim 1, characterized in that, The upper surface of the protective housing (1) has two threaded grooves that are adapted to the locking bolts (8).

3. The lightning protection high-voltage insulation resistance tester according to claim 1, characterized in that, The wire (3) is wound around the surface of the winding rod (5) and passes through the cylindrical tube (10), with the wiring port (4) overlapping one end of the cylindrical tube (10).

4. The lightning protection high-voltage insulation resistance tester according to claim 1, characterized in that, The pressure plate (11) is slidably connected to the surfaces of the two slide rods (12), and the top end of the first spring (13) overlaps with the inner top wall of the moving groove, and the bottom end overlaps with the upper surface of the pressure plate (11).

5. A lightning protection high-voltage insulation resistance tester according to claim 1, characterized in that, The limiting rod (14) extends into the interior of the strip groove and is adapted to the limiting groove on the surface of the cylindrical tube (10).

6. The lightning protection high-voltage insulation resistance tester according to claim 1, characterized in that, The end of the second spring (20) away from the rear wall of the rectangular groove is fixedly connected to the back of the slider (17), and the upper surface of the top cover (15) is provided with an active groove that matches the toggle plate (19).

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