Anti-drop clamp type grounding resistance tester

Abstract

The utility model discloses an anti-drop clamp type grounding resistance tester, which relates to the technical field of resistance testers and comprises a tester body and two clamps, a plurality of adjusting buttons are fixedly mounted at the front end of the tester body, and a display screen is fixedly mounted on the tester body below the adjusting buttons. And the two forceps holders are electrically connected with a port at the front end of the tester body through connecting wires. The wrist sleeving mechanism is arranged at the rear end of the tester body, and the wrist sleeving mechanism is composed of the mounting base, the rotating base, the limiting tooth piece, the wrist strap and other components, on one hand, the tester body can be conveniently fixed to the wrist of a user, and the tester body is prevented from falling and being damaged; the rotating seat can rotate in the first mounting groove through a plurality of limiting tooth pieces on the outer side, and the rotating seat is matched with the first sliding groove and the guide seat, so that an operation position and direction of the tester body can be conveniently adjusted, and a user can conveniently check data and operate equipment.

Description

Technical Field

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

[0002] The clamp-type ground resistance tester uses the working principle of electromagnetic induction and Ohm's law to perform non-contact measurement of the ground wire through a clamp-type probe, which can quickly and accurately obtain the ground resistance value;

[0003] Existing clamp-type ground resistance testers are generally divided into single-clamp type and double-clamp type. The single-clamp type ground resistance tester can be directly held by hand and use the clamp at one end of the tester to detect the resistance of the cable, while the double-clamp type ground resistance tester adopts double-jaw non-contact measurement technology, which does not require auxiliary grounding and does not require the grounding body to be isolated from the load. It is suitable for multi-point or single-point grounding. However, due to the double-clamp structure setting, when testing the cable, the operator needs to hold the clamp with both hands, and the tester body needs to be placed separately for use, especially when working at heights, such as roofs, towers, etc., the operating space is usually limited. This environment limits the range of activities of the testers, making it difficult for them to operate the tester accurately and conveniently. In addition, when working at heights, due to limited operating space and poor vision, the testers may be more likely to make operating errors, such as hand slippage or collision with other objects, causing the tester to fall, thereby causing damage to the tester. Utility Model Content

[0004] The utility model aims to provide a drop-proof clamp-type ground resistance tester, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A drop-proof clamp-type ground resistance tester comprises a tester body and two clamps, a plurality of adjustment buttons are fixedly mounted on the front end of the tester body, a display screen is fixedly mounted on the tester body below the adjustment buttons, the two clamps are electrically connected to the port at the front end of the tester body via a connecting line, a wrist mechanism is arranged at the rear end of the tester body, the wrist mechanism comprises a mounting seat, a rotating seat and a wrist strap, a plurality of limiting teeth are movably mounted on the outer side of the rotating seat, the wrist strap is movably mounted on one end of the rotating seat, the rotating seat is movably mounted in the mounting seat, and the mounting seat is fixedly mounted at the rear end of the tester body.

[0007] As a further preferred embodiment of the present invention, a first mounting groove is provided at one end of the mounting seat, a plurality of card slots are provided in the first mounting groove, an embedding groove is provided at the center of the other end of the mounting seat, and a socket is provided at the mounting seat between the first mounting groove and the embedding groove.

[0008] As a further preferred embodiment of the present invention, a plurality of second mounting grooves are provided on the outer side of the rotating seat, and limiting grooves are provided on both sides of the second mounting grooves. A plurality of second mounting grooves and limiting grooves are provided on the outer side of the rotating seat, which can facilitate the telescopic movement of the limiting tooth plate in the second mounting groove for quick disassembly and assembly.

[0009] As a further preferred embodiment of the present invention, a connecting shaft is fixedly installed at the center position of one end of the rotating seat, a connecting block is fixedly installed at the other end of the rotating seat, a first slide groove is opened in the connecting block, and damping sliders are fixedly installed on both sides of the first slide groove.

[0010] As a further preferred embodiment of the present invention, the limiting tooth piece is in a V-shaped structure, limiting blocks are fixedly installed on both sides of the limiting tooth piece, a fixed shaft is fixedly installed at the top center position of the limiting tooth piece, a compression spring is mounted on the outside of the fixed shaft, the limiting tooth piece is inserted and installed in the corresponding second installation groove, and the limiting block is slidably installed in the corresponding limiting groove. Through the retractable limiting tooth piece and the slot setting in the mounting seat, the operating angle of the tester body can be easily adjusted, and at the same time, the wear of the limiting tooth piece and the slot can be reduced.

[0011] As a further preferred embodiment of the present invention, the rotating seat is inserted into the first installation groove, one end of the connecting shaft extends through the insertion hole to the embedded groove and is clamped with a retaining spring, and the multiple limiting teeth on the outside of the rotating seat are clamped in the corresponding clamping grooves.

[0012] As a further preferred scheme of the utility model, both ends of the wristband have a Velcro structure, a guide seat is fixedly installed on the outside of the wristband, and a second slide groove is opened on both sides of the guide seat. The guide seat is slidably installed in the first slide groove through the second slide groove, and the second slide groove is slidably installed on the corresponding damping slider. The rotating seat is also slidably installed on the guide seat on the outside of the limiting tooth plate through the connecting block, which can further adjust the viewing and operating angles of the tester body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses a drop-proof clamp-type ground resistance tester, wherein a wrist sleeve mechanism is arranged at the rear end of the tester body, and the wrist sleeve mechanism is composed of a mounting seat, a rotating seat, a limiting tooth piece, a wrist strap and other components. On the one hand, the tester body can be conveniently fixed on the wrist of the user to prevent the tester body from falling and being damaged; on the other hand, the rotating seat can be rotated in the first mounting groove through multiple limiting tooth pieces on the outside, and the rotating seat can cooperate with the first slide groove and the guide seat, so as to facilitate the adjustment of the operating position and direction of the tester body, and facilitate the user to view the data and operate the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the disassembly of the wrist sleeve mechanism structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the mounting seat structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rotating seat of the utility model;

[0019] Figure 5 This is a schematic diagram of the disassembly of the rotating seat structure of the utility model;

[0020] Figure 6 It is a cross-sectional view of the limiting tooth piece of the utility model.

[0021] In the figure: 1. Tester body; 2. Adjustment button; 3. Display screen; 4. Clamp; 5. Wrist mechanism; 6. Mounting seat; 7. Rotating seat; 8. Limiting tooth plate; 9. Wrist strap; 10. First mounting slot; 11. Card slot; 12. Embedding slot; 13. Socket; 14. Second mounting slot; 15. Limiting slot; 16. Connecting shaft; 17. Connecting block; 18. First slide slot; 19. Damping slider; 20. Limiting block; 21. Fixed shaft; 22. Compression spring; 23. Guide seat; 24. Second slide slot. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-Figure 6 As shown, the utility model provides a drop-proof clamp-type ground resistance tester, including a tester body 1 and two clamps 4. A plurality of adjustment buttons 2 are fixedly installed at the front end of the tester body 1. A display screen 3 is fixedly installed on the tester body 1 below the adjustment buttons 2. The two clamps 4 are electrically connected to the port at the front end of the tester body 1 through a connecting line. A wrist mechanism 5 is provided at the rear end of the tester body 1. The wrist mechanism 5 includes a mounting seat 6, a rotating seat 7 and a wrist strap 9. A plurality of limiting teeth 8 are movably installed on the outer side of the rotating seat 7. The wrist strap 9 is movably installed at one end of the rotating seat 7. The rotating seat 7 is movably installed in the mounting seat 6. The mounting seat 6 is fixedly installed at the rear end of the tester body 1.

[0024] like Figure 2-Figure 3As shown, a first mounting groove 10 is provided at one end of the mounting seat 6, a plurality of slots 11 are provided in the first mounting groove 10, an embedding groove 12 is provided at the center of the other end of the mounting seat 6, and a plug hole 13 is provided at the mounting seat 6 between the first mounting groove 10 and the embedding groove 12;

[0025] like Figure 2-Figure 6 As shown, a plurality of second mounting grooves 14 are provided on the outer side of the rotating seat 7, and limiting grooves 15 are provided on both sides of the second mounting grooves 14. A plurality of second mounting grooves 14 and limiting grooves 15 are provided on the outer side of the rotating seat 7, so as to facilitate the telescopic movement of the limiting tooth piece 8 in the second mounting groove 14 for quick disassembly and assembly. A connecting shaft 16 is fixedly installed at the center position of one end of the rotating seat 7, and a connecting block 17 is fixedly installed at the other end of the rotating seat 7. A first slide groove 18 is provided in the connecting block 17, and damping sliders 19 are fixedly installed on both sides of the first slide groove 18. The limiting tooth piece 8 has a V-shaped structure, and limiting blocks 20 are fixedly installed on both sides of the limiting tooth piece 8. The top center of the limiting tooth piece 8 A fixed shaft 21 is installed in a fixed position, a compression spring 22 is sleeved on the outside of the fixed shaft 21, the limiting tooth piece 8 is inserted and installed in the corresponding second installation groove 14, and the limiting block 20 is slidably installed in the corresponding limiting groove 15. Through the arrangement of the retractable limiting tooth piece 8 and the card slot 11 in the mounting seat 6, the operating angle of the tester body 1 can be adjusted conveniently, and at the same time, the wear of the limiting tooth piece 8 and the card slot 11 is reduced. The rotating seat 7 is inserted and installed in the first installation groove 10, and one end of the connecting shaft 16 extends through the jack 13 to the embedded groove 12 and is clamped with a retaining spring, and the multiple limiting tooth pieces 8 on the outside of the rotating seat 7 are clamped in the corresponding card slot 11;

[0026] like Figure 2 , Figure 4 As shown, both ends of the wristband 9 have a Velcro structure, and a guide seat 23 is fixedly installed on the outside of the wristband 9. Second slide grooves 24 are opened on both sides of the guide seat 23. The guide seat 23 is slidably installed in the first slide groove 18 through the second slide groove 24, and the second slide groove 24 is slidably installed on the corresponding damping slider 19. The rotating seat 7 is also slidably installed on the guide seat 23 outside the limiting tooth plate 8 through the connecting block 17, which can further adjust the viewing and operating angles of the tester body 1.

[0027] It should be noted that the utility model is a drop-proof clamp-type ground resistance tester. When using the tester body 1, the wristband 9 can be first tied to one of the user's wrists using the Velcro at both ends, and then the tester body 1 can be manually rotated according to the user's usage habits, so that the tester body 1 drives the mounting base 6 to rotate, and then the mounting base 6 rotates on the outside of the rotating base 7 through the internal first mounting groove 10, and the first mounting groove 10 cooperates with the multiple inner slots 11 to cyclically compress the multiple limiting tooth pieces 8 on the outside of the rotating base 7, that is, after the top of the limiting tooth piece 8 contacts the inner side of the first mounting groove 10, the limiting tooth piece 8 is pressed and moves into the second mounting groove 14 and compresses the compression spring 22, and after the top of the limiting tooth piece 8 moves to the position of the slot 11, with the help of the compression spring The force of the spring 22 pushes out the limit tooth piece 8, so that the top end of the limit tooth piece 8 is stuck in the corresponding slot 11, and the tester body 1 can be rotated and adjusted. In the absence of external force, the limit tooth piece 8 can be stuck in the slot 11 to limit the rotation of the mounting seat 6. Then, the operation and viewing angle of the tester body 1 can be adjusted. It only needs to drive the mounting seat 6 and the rotating seat 7 to move through the tester body 1, so that the rotating seat 7 can slide along the path of the guide seat 23 through the connecting block 17, the first slide groove 18, and the damping slider 19, and the friction between the damping slider 19 and the second slide groove 24 is used to limit it in real time, so that the user can operate the tester body 1 and the clamp 4 at a high place. At the same time, it also prevents the tester body 1 from falling from the user's hands and being damaged.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A drop-proof clamp-type ground resistance tester, characterized in that: The tester comprises a tester body (1) and two clamps (4); a plurality of adjustment buttons (2) are fixedly mounted on the front end of the tester body (1); a display screen (3) is fixedly mounted on the tester body (1) below the adjustment buttons (2); the two clamps (4) are electrically connected to ports on the front end of the tester body (1) via connecting wires; and a wrist mechanism (5) is disposed on the rear end of the tester body (1); The wrist mechanism (5) comprises a mounting seat (6), a rotating seat (7) and a wrist strap (9); a plurality of limit teeth (8) are movably mounted on the outer side of the rotating seat (7); the wrist strap (9) is movably mounted on one end of the rotating seat (7); the rotating seat (7) is movably mounted in the mounting seat (6); and the mounting seat (6) is fixedly mounted on the rear end of the tester body (1).

2. The drop-proof clamp-type ground resistance tester according to claim 1, characterized in that: A first mounting groove (10) is provided at one end of the mounting seat (6), a plurality of slots (11) are provided in the first mounting groove (10), an embedding groove (12) is provided at the center of the other end of the mounting seat (6), and a plug hole (13) is provided on the mounting seat (6) between the first mounting groove (10) and the embedding groove (12).

3. The drop-proof clamp-type ground resistance tester according to claim 1, characterized in that: A plurality of second installation grooves (14) are provided on the outer side of the rotating seat (7), and limiting grooves (15) are provided on both sides of the second installation grooves (14).

4. The drop-proof clamp-type ground resistance tester according to claim 2, characterized in that: A connecting shaft (16) is fixedly mounted at the center position of one end of the rotating seat (7), and a connecting block (17) is fixedly mounted at the other end of the rotating seat (7). A first sliding groove (18) is provided in the connecting block (17), and damping sliding blocks (19) are fixedly mounted on both sides of the first sliding groove (18).

5. The drop-proof clamp-type ground resistance tester according to claim 4, characterized in that: The limiting tooth piece (8) is in a V-shaped structure, and limiting blocks (20) are fixedly installed on both sides of the limiting tooth piece (8). A fixed shaft (21) is fixedly installed at the top center position of the limiting tooth piece (8), and a compression spring (22) is sleeved on the outside of the fixed shaft (21). The limiting tooth piece (8) is inserted and installed in the corresponding second installation groove (14), and the limiting block (20) is slidably installed in the corresponding limiting groove (15).

6. The drop-proof clamp-type ground resistance tester according to claim 4, characterized in that: The rotating seat (7) is inserted and installed in the first installation groove (10), one end of the connecting shaft (16) passes through the insertion hole (13) and extends into the embedding groove (12) and is clamped with a retaining spring, and a plurality of limiting tooth plates (8) on the outer side of the rotating seat (7) are clamped in corresponding clamping grooves (11).

7. The drop-proof clamp-type ground resistance tester according to claim 4, characterized in that: Both ends of the wristband (9) have a Velcro structure, a guide seat (23) is fixedly installed on the outer side of the wristband (9), and second slide grooves (24) are opened on both sides of the guide seat (23). The guide seat (23) is slidably installed in the first slide groove (18) through the second slide groove (24), and the second slide groove (24) is slidably installed on the corresponding damping slider (19).

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