A ground resistance tester

Abstract

The utility model provides a ground resistance tester, including a telescopic rod and a support tube, the inner thread of the support tube is matched with a screw rod, one end of the screw rod is equipped with a ground electrode column, one end of the ground electrode column is fixed with a drill bit, the other end of the screw rod is fixed with a handle, the handle corresponds to the telescopic rod, one end of the telescopic rod is equipped with a mounting seat, the mounting seat is placed with a resistance tester body, a winding block is fixed on the lower side of the mounting seat, and the winding block corresponds to the telescopic rod. In the utility model, the screw rod is installed in the support tube, the ground electrode column is installed at one end of the screw rod, and the drill bit is installed at one end of the ground electrode column, so that the ground electrode column can be inserted into the ground relatively easily, thereby ensuring the grounding effect, and the support tube can be disassembled and moved at will, so that the ground electrode column can be inserted into the ground conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testers, in particular to a ground resistance tester. Background Art

[0002] The ground resistance tester is specially designed and manufactured for on-site ground resistance measurement. It is widely used in ground resistance measurement of power, telecommunications, meteorology, oil fields, construction, lightning protection and industrial electrical equipment. The ground resistance tester abandons the traditional manual hand-cranked power generation working mode, adopts advanced large-scale integrated circuits, and uses DC / AC conversion technology to combine the three-terminal and four-terminal measurement methods into a new type of digital ground resistance tester. For example, the patent with publication number CN215415619U discloses a ground resistance tester, including a protective box, a tester body is installed in the protective box, a grounding wire is installed at the bottom of the tester body, a connecting cylinder is installed at the bottom of the protective box, a connecting column is threadedly connected to the inner side wall of the connecting cylinder, a grounding plate is installed at the bottom of the connecting column, and the end of the grounding wire away from the tester body is electrically connected to the connecting column. The device can be grounded through the connecting column and the grounding plate, but when grounding, it is usually better to insert the grounding device below the ground. For sites with cement structures, the above device is not convenient to insert underground, resulting in poor grounding effect, thereby affecting the measurement results.

[0003] To this end, the utility model provides a ground resistance tester. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a ground resistance tester to solve the problems raised in the above-mentioned background technology. The utility model can easily insert the grounding electrode column into the ground to ensure the grounding effect, and the support tube can be disassembled and moved at will to facilitate the insertion of the grounding electrode column into the ground; the grounding wire can also be rolled up and stored to prevent the grounding wires from being entangled together.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a ground resistance tester, including a telescopic rod and a supporting tube, the inner thread of the supporting tube is matched with a screw, one end of the screw is equipped with a grounding electrode column, one end of the grounding electrode column is fixed with a drill bit, the other end of the screw is fixed with a handle, the handle corresponds to the telescopic rod, one end of the telescopic rod is equipped with a mounting seat, the mounting seat contains the resistance tester body, a winding block is fixed to the lower side of the mounting seat, and the winding block corresponds to the telescopic rod.

[0006] Furthermore, a base is fixed to one end of the telescopic rod, a slide groove is provided in the base, and the slide groove corresponds to the handle.

[0007] Furthermore, a magnetic block is fixed in the slide groove, and the handle is made of iron material.

[0008] Furthermore, a thread groove is provided in the support tube, the thread groove corresponds to the screw rod, the screw rod is fixedly connected to the grounding electrode column, and pressure plates are fixed on both sides of the support tube.

[0009] Furthermore, the telescopic rod includes a first rod body and a second rod body, and the first rod body is slidably connected to the second rod body.

[0010] Furthermore, the first rod body and the second rod body are both provided with through slots, a grounding wire is installed between the resistance tester body and the grounding electrode column, and the grounding wire corresponds to the through slot.

[0011] Furthermore, the grounding wire is wound around the circumference of the winding block, and the winding block is rotatably connected to the telescopic rod.

[0012] Furthermore, the telescopic rod is rotatably connected to the mounting seat, and a mounting groove is provided in the mounting seat, and the mounting groove corresponds to the resistance tester body.

[0013] Beneficial effects of the utility model: The utility model provides a ground resistance tester, comprising a support tube; a screw rod; a ground electrode column; a drill bit; a telescopic rod; a mounting seat; a resistance tester body; a winding block; and a ground wire.

[0014] A screw rod is installed in the support tube, a grounding electrode column is installed at one end of the screw rod, and a drill bit is installed at one end of the grounding electrode column. The grounding electrode column can be easily inserted into the ground to ensure the grounding effect, and the support tube can be disassembled and moved at will to facilitate the insertion of the grounding electrode column into the ground. A mounting seat is provided at one end of the telescopic rod, and a resistance tester body is placed in the mounting seat. A winding block is provided on the lower side of the mounting seat to wind up the ground wire and prevent the ground wire from being entangled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of a ground resistance tester of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the telescopic rod in the ground resistance tester of the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly cross-sectional structure of a telescopic rod in a ground resistance tester of the utility model;

[0018] Figure 4 This is a schematic diagram of the assembly cross-sectional structure of a support tube and a screw rod in a ground resistance tester of the utility model;

[0019] In the figure: 1. telescopic rod; 2. base; 3. slide groove; 4. support tube; 5. threaded groove; 6. screw; 7. pressure plate; 8. drill bit; 9. handle; 10. grounding electrode column; 11. first rod body; 12. second rod body; 13. through groove; 14. mounting seat; 15. resistance tester body; 16. winding block; 17. mounting groove. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a ground resistance tester, including a telescopic rod 1 and a support tube 4, the internal thread of the support tube 4 is matched with a screw 6, one end of the screw 6 is equipped with a grounding electrode column 10, one end of the grounding electrode column 10 is fixed with a drill bit 8, the other end of the screw 6 is fixed with a handle 9, the handle 9 corresponds to the telescopic rod 1, one end of the telescopic rod 1 is equipped with a mounting seat 14, a resistance tester body 15 is placed in the mounting seat 14, a winding block 16 is fixed to the lower side of the mounting seat 14, and the winding block 16 corresponds to the telescopic rod 1.

[0022] In this embodiment, a base 2 is fixed at one end of the telescopic rod 1, a slide groove 3 is provided in the base 2, the slide groove 3 corresponds to the handle 9, a magnetic block is fixed in the slide groove 3, and the handle 9 is made of iron material.

[0023] Specifically, the handle 9 can be slid into the slide groove 3, and the handle 9 is fixed by adsorption to the magnetic block, so that the base 2 and the handle 9 can be fixedly connected. At this time, the grounding electrode column 10 can be inserted into the ground by rotating the telescopic rod 1, which is more labor-saving to use.

[0024] A thread groove 5 is provided in the support tube 4 , and the thread groove 5 corresponds to a screw rod 6 . The screw rod 6 is fixedly connected to a grounding electrode column 10 . Press plates 7 are fixed on both sides of the support tube 4 .

[0025] Specifically, when the grounding electrode column 10 needs to be inserted into the ground, the handle 9 can be directly turned after stepping on the pressure plate 7, so that the handle 9 drives the screw 6 to rotate, and the screw 6 rotates and moves downward, and a hole can be drilled into the ground through the drill bit 8, thereby facilitating the insertion of the grounding electrode column 10 into the ground.

[0026] The telescopic rod 1 includes a first rod body 11 and a second rod body 12, the first rod body 11 and the second rod body 12 are slidably connected, and a through groove 13 is provided in the first rod body 11 and the second rod body 12. A grounding wire is installed between the resistance tester body 15 and the grounding electrode column 10, and the grounding wire corresponds to the through groove 13. The grounding wire is wound around the side of the winding block 16, and the winding block 16 is rotatably connected to the telescopic rod 1. The telescopic rod 1 is rotatably connected to the mounting seat 14, and a mounting groove 17 is provided in the mounting seat 14, and the mounting groove 17 corresponds to the resistance tester body 15.

[0027] Specifically, when it is necessary to measure the electromechanical resistance, the two ends of the grounding wire are connected to the resistance tester body 15 and the grounding electrode column 10 respectively, and the grounding wire passes through the through slot 13 and is wound around the winding block 16. When the distance between the resistance tester body 15 and the grounding electrode column 10 is long, the mounting seat 14 is directly rotated to loosen the wound grounding wire, thereby ensuring that the electrical connection between the resistance tester body 15 and the grounding electrode column 10 can be measured.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A ground resistance tester, comprising a telescopic rod (1) and a support tube (4), characterized in that: The support tube (4) is internally threaded with a screw rod (6), one end of the screw rod (6) is provided with a grounding electrode column (10), one end of the grounding electrode column (10) is fixed with a drill bit (8), the other end of the screw rod (6) is fixed with a handle (9), the handle (9) corresponds to the telescopic rod (1), one end of the telescopic rod (1) is provided with a mounting seat (14), a resistance tester body (15) is placed in the mounting seat (14), a winding block (16) is fixed to the lower side of the mounting seat (14), and the winding block (16) corresponds to the telescopic rod (1).

2. A ground resistance tester according to claim 1, characterized in that: A base (2) is fixed to one end of the telescopic rod (1), a slide groove (3) is provided in the base (2), and the slide groove (3) corresponds to the handle (9).

3. A ground resistance tester according to claim 2, characterized in that: A magnetic block is fixed in the slide groove (3), and the handle (9) is made of iron material.

4. A ground resistance tester according to claim 1, characterized in that: The support tube (4) is provided with a threaded groove (5), the threaded groove (5) corresponds to a screw rod (6), the screw rod (6) is fixedly connected to a grounding electrode column (10), and pressure plates (7) are fixed on both sides of the support tube (4).

5. A ground resistance tester according to claim 1, characterized in that: The telescopic rod (1) comprises a first rod body (11) and a second rod body (12), and the first rod body (11) is slidably connected to the second rod body (12).

6. A ground resistance tester according to claim 5, characterized in that: A through slot (13) is provided in both the first rod body (11) and the second rod body (12); a grounding wire is installed between the resistance tester body (15) and the grounding electrode column (10), and the grounding wire corresponds to the through slot (13).

7. A ground resistance tester according to claim 6, characterized in that: The grounding wire is wound around the circumference of the winding block (16), and the winding block (16) is rotatably connected to the telescopic rod (1).

8. A ground resistance tester according to claim 1, characterized in that: The telescopic rod (1) is rotatably connected to the mounting seat (14); a mounting groove (17) is provided in the mounting seat (14); and the mounting groove (17) corresponds to the resistance tester body (15).

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