Current test clamp of loop resistance tester

Abstract

The utility model discloses a current test clamp of a loop resistance tester, which comprises an upper handle, a lower handle, an upper conductive clamp, a lower conductive clamp, a bolt and a nut, the bolt and the nut are used for connecting the upper handle, the lower handle, the upper conductive clamp and the lower conductive clamp, the upper handle and the lower handle are respectively divided into a front section and a rear section, and the front section and the rear section are mutually connected through a guide post and a matched clamping groove; the outer surface of the rear section is provided with anti-skid grains; and an upper blade and a lower blade are respectively arranged on one sides of jaws of the upper conductive clamp and the lower conductive clamp. Wherein the anti-slip lines can avoid time consumption caused by falling of the handle due to slipping of a hand during use; due to the sectional design of the handle, the handle can be conveniently replaced through clamping connection of the clamping groove and the guide column after being damaged, time and labor are saved, and cost is saved; and the blade is arranged at the jaw, so that the wire can be conveniently cut. Therefore, the current testing efficiency can be improved and the operation cost can be saved by widely applying the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of current testing clamps, in particular to a current testing clamp of a loop resistance tester. Background Art

[0002] The loop resistance tester applies a DC source to both sides of the high-voltage switch contact when both ends are not grounded or one end is grounded, and measures the voltage at the same time to obtain the resistance value. When measuring, the operator's palms will sweat when he is nervous, and the handle will fall off due to slipping, which is very time-consuming; the handle is also easily damaged during use, but the current test clamp can only be replaced as a whole, which will increase the cost output; sometimes other tools are used to cut the wire when there is a problem, and it is very convenient to switch tools back and forth. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a current testing clamp for a loop resistance tester which has a cutting function, can prevent slipping and is convenient for maintenance and replacement.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The current test clamp of the loop resistance tester includes a clamp body, which is composed of an upper handle, a lower handle, an upper conductive clamp, a lower conductive clamp and bolts and nuts connecting them. The upper handle and the lower handle are divided into a front section and a rear section, and the front section and the rear section are connected to each other through a guide column and a matching card slot; the outer surface of the rear section is provided with anti-slip grooves; the upper conductive clamp and the lower conductive clamp are respectively provided with an upper blade and a lower blade on one side of the jaws.

[0006] The front section of the upper handle is connected to the tail of the lower conductive pliers as a whole, and the front section of the lower handle is connected to the tail of the upper conductive pliers as a whole; the ends of the rear sections of the upper handle and the lower handle are both provided with wiring connection seats.

[0007] The connection position of the upper handle front section and the lower conductive pliers tail, and the connection position of the lower handle front section and the upper conductive pliers tail are provided with connection holes, and they are connected in the connection holes through bolts and nuts.

[0008] An upper connecting seat is fixedly arranged at the center position of the lower end surface of the upper handle front section, and a lower connecting seat is arranged at the corresponding position of the lower handle front section. The upper connecting seat and the lower connecting seat are connected by a reset spring.

[0009] An upper wiring connection ring is fixedly arranged on the upper surface of one end of the upper conductive pliers close to the upper handle, and a lower wiring connection ring is arranged at a corresponding position of the lower conductive pliers.

[0010] An induction light connected to an induction line is provided on the upper handle.

[0011] The upper conductive clamp and the lower conductive clamp are both provided with mounting grooves, and the mounting grooves are provided with induction wires.

[0012] In view of the problems existing in the current test pliers, the inventor has designed a current test pliers for a loop resistance tester, including an upper handle, a lower handle, an upper conductive pliers, a lower conductive pliers and bolts and nuts connecting them. The upper handle and the lower handle are divided into a front section and a rear section, and the front section and the rear section are connected to each other through a guide column and a matching slot; the outer surface of the rear section is provided with anti-slip grooves; the upper conductive pliers and the lower conductive pliers are provided with an upper blade and a lower blade on one side of the jaws, respectively. Among them, the anti-slip grooves can prevent the handle from falling off due to hand slipping during use, which wastes time; the segmented design of the handle makes it easy to replace the handle after it is damaged through the clamping connection of the slot and the guide column, saving time, labor and cost; the blade installed at the jaws can facilitate the cutting of the wire. Therefore, the widespread application of the utility model can improve the efficiency of current testing and save operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the first axonometric structure of the current test clamp of the loop resistance tester.

[0014] Figure 2 The utility model is a schematic diagram of the second axonometric structure of the current test clamp of the loop resistance tester.

[0015] Figure 3 The utility model is a schematic diagram of the internal structure of the current test clamp of the loop resistance tester.

[0016] Figure 4 for Figure 3 Schematic diagram of the structure at A in the current test clamp of the loop resistance tester.

[0017] Figure 5 The utility model is a schematic diagram of the structure of bolts and nuts in the current test clamp of the loop resistance tester.

[0018] In the figure: 1. upper handle; 2. lower handle; 3. upper connecting seat; 4. lower connecting seat; 5. reset spring; 6. anti-slip pattern; 7. wiring connecting seat; 8. upper wiring connecting ring; 9. lower wiring connecting ring; 10. induction lamp; 11. lower conductive jaws; 12. upper conductive jaws; 13. bolt; 14. connecting hole; 15. mounting slot; 16. induction line; 17. upper blade; 18. lower blade; 19. nut; 20. slot; 21. guide column. DETAILED DESCRIPTION

[0019] 1. Basic structure

[0020] like Figures 1 to 5 As shown, the current test clamp of the loop resistance tester of the utility model comprises a clamp body, which is composed of an upper handle 1, a lower handle 2, an upper conductive clamp, a lower conductive clamp and bolts and nuts connecting them.

[0021] The upper handle and the lower handle are divided into a front section and a rear section, which are connected to each other through a guide column 21 and a matching slot 20, and the handle can be replaced at any time as needed; the front section of the upper handle is connected to the tail of the lower conductive clamp, and the front section of the lower handle is connected to the tail of the upper conductive clamp; the ends of the rear sections of the upper handle and the lower handle are provided with a wiring connection seat 7, which can be directly connected to the tester. The outer surface of the rear section is provided with anti-slip grooves 6 to make the upper and lower handles have an anti-slip effect; the upper connection seat 3 is fixedly provided at the center of the lower end surface of the front section of the upper handle, and the lower connection seat 4 is provided at the corresponding position of the front section of the lower handle. The upper connection seat and the lower connection seat are connected by a reset spring 5 for quick reset.

[0022] The jaws of the upper conductive pliers and the lower conductive pliers (the jaws of the upper conductive pliers are used to clamp one side of the wire to be measured, and the jaws of the lower conductive pliers are used to clamp the other side of the wire to be measured) are respectively provided with an upper blade 17 and a lower blade 18 on one side, which can cooperate to cut the wire to reduce the time of switching tools. A connection hole 14 is provided at the connection between the front section of the upper handle and the tail of the lower conductive pliers, and at the connection between the front section of the lower handle and the tail of the upper conductive pliers. They are connected in the connection hole by bolts 13 and nuts 19 to stabilize the tool. An upper wire connection ring 8 is fixedly provided on the upper surface of one end of the upper conductive pliers near the upper handle for connecting to the positive pole of the tester, and a lower wire connection ring 9 is provided at the corresponding position of the lower conductive pliers for connecting to the negative pole of the tester.

[0023] The upper conductive clamp and the lower conductive clamp are both provided with a mounting groove 15, and the mounting groove is provided with a sensing line 16. The upper handle is provided with a sensing lamp 10 connected to the sensing line. The sensing lamp is used to feedback the sensing result to see if there is any error in the position.

[0024] 2. Working Principle

[0025] Working principle: Connect the wire to the upper handle and the lower handle through the wiring connection seat, or connect through the upper wiring connection ring and the lower wiring connection ring, press the upper handle and the lower handle to separate the lower conductive jaw 11 and the upper conductive jaw 12, and place them at the position to be tested. The induction line senses the placement position. If there is a position error, the induction light lights up, indicating that the position is wrong. After placement is completed, the reset spring will pull the upper connection seat and the lower connection seat to drive the upper handle and the lower handle to reset, so that the upper conductive jaw and the lower conductive jaw are clamped.

Claims

1. A current test clamp for a loop resistance tester, comprising a clamp body, the clamp body consisting of an upper handle, a lower handle, an upper conductive clamp, a lower conductive clamp and bolts and nuts connecting them, characterized in that: The upper handle and the lower handle are both divided into a front section and a rear section, which are connected to each other through guide pillars and matching slots; the outer surface of the rear section is provided with anti-slip grooves; the upper and lower conductive pliers are respectively provided with upper and lower blades on one side of the jaws.

2. The current test clamp of the loop resistance tester according to claim 1, characterized in that: The front section of the upper handle is connected to the tail of the lower conductive pliers as a whole, and the front section of the lower handle is connected to the tail of the upper conductive pliers as a whole; the ends of the rear sections of the upper handle and the lower handle are both provided with wiring connection seats.

3. The current test clamp of the loop resistance tester according to claim 2, characterized in that: The connection point between the front section of the upper handle and the tail of the lower conductive pliers, and the connection point between the front section of the lower handle and the tail of the upper conductive pliers are provided with connection holes, and they are connected in the connection holes by bolts and nuts.

4. The current test clamp of the loop resistance tester according to claim 3, characterized in that: An upper connecting seat is fixedly arranged at the center position of the lower end surface of the upper handle front section, and a lower connecting seat is arranged at a corresponding position of the lower handle front section. The upper connecting seat and the lower connecting seat are connected by a reset spring.

5. The current test clamp of the loop resistance tester according to claim 1, characterized in that: An upper wiring connection ring is fixedly arranged on the upper surface of one end of the upper conductive pliers close to the upper handle, and a lower wiring connection ring is arranged at a corresponding position of the lower conductive pliers.

6. The current test clamp of the loop resistance tester according to claim 1, characterized in that: The upper handle is provided with an induction lamp connected to an induction line.

7. The current test clamp of the loop resistance tester according to claim 6, characterized in that: The upper conductive clamp and the lower conductive clamp are both provided with mounting grooves, and the mounting grooves are provided with induction wires.

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