Contact breaking prevention mechanism of resistance tester

Abstract

The utility model provides a broken contact prevention mechanism of a resistance tester, which relates to the technical field of resistance testers, and comprises a tester body, a fixing mechanism is arranged on one side surface of the tester body, the fixing mechanism comprises an external block, a bidirectional threaded rod penetrates through the internal part of the external block, and the bidirectional threaded rod is connected with the external block. The outer surface of the two-way threaded rod is sleeved with two threaded sleeve blocks, the threaded sleeve blocks are in threaded connection with the two-way threaded rod, and the outer surfaces of the threaded sleeve blocks are fixedly connected with sliding blocks. According to the utility model, the fixing mechanism is arranged, so that the lead inserted and connected on the resistance tester can be tightly clamped, no matter whether the resistance tester moves or the lead is driven unintentionally, the condition of broken contact between the resistance tester and the lead is avoided, and the resistance tester is more stable in use; and the resistance measurement result is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testers, in particular to an anti-break contact mechanism of a resistance tester. Background Art

[0002] Resistance tester is an instrument for measuring the conductivity of an object. Resistance tester is widely used in electrical safety inspection and grounding project completion acceptance. There are many types of resistance testers, including ground resistance tester, insulation resistance tester, DC resistance meter, surface resistance tester and loop resistance tester.

[0003] A wire is usually inserted into an existing resistance tester. Since the wire and the resistance tester are simply connected by plugging and unplugging, when the resistance tester is accidentally moved by external touch or the wire is accidentally pulled by external touch, the connection between the wire and the resistance tester is not stable enough and may become loose, which may cause the connection between the resistance tester and the wire to be broken. At this time, the resistance testing process will be affected. Therefore, the existing resistance tester without anti-breaking function is inconvenient to use. Utility Model Content

[0004] The utility model aims to solve the defect that the resistance tester in the prior art does not have the anti-touch-off function, and provides an anti-touch-off mechanism for the resistance tester.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-touch-off mechanism of a resistance tester, comprising: a tester body, a fixing mechanism is provided on one side of the tester body, the fixing mechanism comprises an external block, a bidirectional threaded rod passes through the interior of the external block, a threaded sleeve block is sleeved on the outer surface of the bidirectional threaded rod, the number of the threaded sleeve blocks is two, the threaded sleeve block is threadedly connected to the bidirectional threaded rod, a slider is fixedly connected to the outer surface of the threaded sleeve block, the slider passes through the interior of the external block, the slider is slidably connected to the external block, one end of the slider is fixedly connected to a clamping block, the outer surface of the clamping block is fixedly connected to a rubber pad, and one end of the bidirectional threaded rod is sleeved with a bearing.

[0006] As a preferred embodiment, the bearing is placed in a groove opened inside the external block, and the bearing is fixedly connected to the inner wall of the external block and the outer surface of the bidirectional threaded rod. The end of the bidirectional threaded rod away from the bearing is fixedly connected to a hexagonal screw block.

[0007] As a preferred embodiment, clamping mechanisms are provided on both sides of the tester body, and the clamping mechanisms include a fixed block 1, which is fixedly connected to an external block, a fixed block 2 is provided at the bottom of the fixed block 1, and a rubber pad 2 is fixedly connected to the inner wall of the fixed block 2 and the fixed block 1.

[0008] As a preferred embodiment, the outer surface of the fixing block one is fixedly connected to the connecting block one, the outer surface of the fixing block two is fixedly connected to the connecting block two, and a hexagonal nut is provided in the hexagonal groove on the connecting block two.

[0009] As a preferred embodiment, the connection block 1 and the hexagonal nut are both sleeved with cross bolts, the cross bolts are slidably connected to the connection block 1, and the cross bolts are threadedly connected to the hexagonal nut.

[0010] As a preferred embodiment, a connecting mechanism is provided on the top of the tester body, and the connecting mechanism includes a connecting rod, and hexagonal bolts penetrate the interior of the connecting rod and the fixing block 1.

[0011] As a preferred implementation, the hexagonal bolt is slidably connected to the connecting rod, and the hexagonal bolt is threadedly connected to the fixing block.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] The utility model provides a fixing mechanism so that the wire inserted and connected to the resistance tester can be tightly clamped, and no matter whether the resistance tester moves or the wire is accidentally moved, it will not cause the resistance tester and the wire to be disconnected, so that the resistance tester is more stable when used and the resistance measurement result is more accurate. In addition, a rubber pad is fixedly connected to the clamping block, which can better protect the insulation layer of the wire from being damaged by the clamping block, and also increase the contact friction between the clamping block and the wire. The clamping mechanism is provided so that the fixing mechanism can form a whole with the resistance tester, so that the wire and the resistance tester can move as a whole when moving. In addition, under the action of the connecting mechanism, the two clamping mechanisms can be more firmly connected to the resistance tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a three-dimensional diagram of an anti-touch-off mechanism of a resistance tester provided by the present invention.

[0015] Figure 2 The utility model provides a three-dimensional diagram of a fixing mechanism of an anti-touch-off mechanism of a resistance tester.

[0016] Figure 3 The utility model provides a cross-sectional stereoscopic diagram of a fixing mechanism of an anti-break mechanism of a resistance tester.

[0017] Figure 4 The utility model provides a schematic diagram of the disassembly of a clamping mechanism of an anti-touch-off mechanism of a resistance tester.

[0018] Figure 5 The utility model provides a schematic diagram of the installation of a connecting rod of an anti-touch-break mechanism of a resistance tester.

[0019] Legend:

[0020] 1. Tester body; 2. Fixing mechanism; 3. Clamping mechanism; 4. Connecting mechanism;

[0021] 21. External block; 22. Bidirectional threaded rod; 23. Threaded sleeve block; 24. Sliding block; 25. Clamping block;

[0022] 26. Rubber pad 1; 27. Bearing; 28. Hexagon socket screw block; 31. Fixed block 1;

[0023] 32. Fixed block 2; 33. Rubber pad 2; 34. Connecting block 1; 35. Connecting block 2;

[0024] 36. Cross bolt; 37. Hexagonal nut; 41. Connecting rod; 42. Hexagonal bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1-Figure 3 As shown, the utility model provides a technical solution: an anti-touch-off mechanism of a resistance tester, comprising: a tester body 1, a fixing mechanism 2 is provided on one side of the tester body 1, the fixing mechanism 2 comprises an external block 21, a bidirectional threaded rod 22 is penetrated inside the external block 21, a threaded sleeve block 23 is sleeved on the outer surface of the bidirectional threaded rod 22, the number of the threaded sleeve blocks 23 is two, the threaded sleeve block 23 is threadedly connected to the bidirectional threaded rod 22, a slider 24 is fixedly connected to the outer surface of the threaded sleeve block 23, the slider 24 penetrates inside the external block 21, the slider 24 is slidably connected to the external block 21, one end of the slider 24 is fixedly connected to a clamping block 25, the outer surface of the clamping block 25 is fixedly connected to a rubber pad 26, one end of the bidirectional threaded rod 22 is sleeved with a bearing 27, the bearing 27 is placed in a groove opened inside the external block 21, the bearing 27 is fixedly connected to the inner wall of the external block 21 and the outer surface of the bidirectional threaded rod 22, and the end of the bidirectional threaded rod 22 away from the bearing 27 is fixedly connected to an inner hexagon screw block 28.

[0028] In this embodiment, by setting up a fixing mechanism 2, the wire connected to the tester body 1 can be clamped and fixed, so that the wire will not easily become loose, and a bidirectional threaded rod 22 and a threaded sleeve block 23 are provided, and the bidirectional threaded rod 22 can threadably drive the two threaded sleeve blocks 23, so that the two threaded sleeve blocks 23 can drive the two clamping blocks 25 to move in the same direction or in the opposite direction at the same time, so as to achieve the purpose of tightly clamping the wire. In addition, the texture of the bearing 27 is relatively soft, which can increase the friction between the clamping block 25 and the outer skin of the wire, and at the same time, it can also protect the outer skin of the wire from being tightly clamped by the clamping block 25 and cracked.

[0029] Example 2

[0030] like Figure 1 , Figure 4 and Figure 5 As shown, both sides of the tester body 1 are provided with a clamping mechanism 3, the clamping mechanism 3 includes a fixing block 1 31, the fixing block 1 31 is fixedly connected to the external block 21, a fixing block 2 32 is provided at the bottom of the fixing block 1 31, a rubber pad 2 33 is fixedly connected to the inner wall of the fixing block 2 32 and the fixing block 1 31, a connecting block 1 34 is fixedly connected to the outer surface of the fixing block 1 31, a connecting block 2 35 is fixedly connected to the outer surface of the fixing block 2 32, and a hexagonal groove provided on the connecting block 2 35 is provided The hexagonal nut 37, the connecting block 34 and the hexagonal nut 37 are all sleeved with a cross bolt 36, the cross bolt 36 is slidably connected to the connecting block 34, the cross bolt 36 is threadedly connected to the hexagonal nut 37, and a connecting mechanism 4 is provided on the top of the tester body 1, the connecting mechanism 4 includes a connecting rod 41, the connecting rod 41 and the fixing block 31 are penetrated by a hexagonal bolt 42, the hexagonal bolt 42 is slidably connected to the connecting rod 41, and the hexagonal bolt 42 is threadedly connected to the fixing block 31.

[0031] In this embodiment, a clamping mechanism 3 is provided, and the clamping mechanism 3 can clamp the tester body 1. Since the fixing block 1 31 is fixedly connected to the external block 21, the fixing mechanism 2 and the tester body 1 can form a whole, so as to avoid the wire being disconnected due to accidental touch from the outside. In addition, rubber pads 2 33 are provided on the inner walls of the fixing block 1 31 and the fixing block 2 32, so that the fixing block 1 31 and the fixing block 2 32 can firmly clamp the tester body 1 with a smooth surface, and a connecting mechanism 4 is provided so that the two clamping mechanisms 3 can be connected, and the tester body 1 will not be detached from the clamping mechanism 3.

[0032] Working principle:

[0033] like Figure 1-Figure 5As shown, when the utility model is used, the clamping mechanism 3 and the connecting mechanism 4 can be installed first, and the fixing block 1 31 and the fixing block 2 32 can be placed on the top and bottom of the tester body 1 respectively, and then the hexagonal nut 37 can be installed in the hexagonal groove opened on the connecting block 2 35, and then the cross bolt 36 can pass through the connecting block 1 34 and finally be threadedly connected with the hexagonal nut 37, so that the fixing block 1 31 and the fixing block 2 32 can tightly clamp the tester body 1, and then the connecting rod 41 can be placed on the top of the two fixing blocks 1 31, and the hexagonal bolt 42 can be threadedly connected with the fixing block 1 31, so that the two clamping mechanisms 3 can form a connection, at this time, the wire is inserted and connected to the tester body 1, and the wire is placed between the two clamping blocks 25, and then the hexagonal screw block 28 is screwed with the help of an auxiliary tool to drive the bidirectional threaded rod 22 to rotate. Since the bidirectional threaded rod 22 is fixedly connected to the inner ring of the bearing 27, the bidirectional threaded rod 22 can stably drive the two threaded sleeve blocks 23, and under the guidance of the slider 24, the clamping blocks 25 can move towards each other at the same time and gradually approach until the wire is tightly clamped. At this time, the wire and the tester body 1 will form a whole, and will not be disconnected due to external influences.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A resistance tester anti-touch mechanism, characterized in that: include: A tester body (1) is provided with a fixing mechanism (2) on one side of the tester body (1), the fixing mechanism (2) comprising an external block (21), a bidirectional threaded rod (22) passing through the interior of the external block (21), a threaded sleeve block (23) being sleeved on the outer surface of the bidirectional threaded rod (22), two threaded sleeve blocks (23) being threadedly connected to the bidirectional threaded rod (22), a slider (24) being fixedly connected to the outer surface of the threaded sleeve block (23), the slider (24) passing through the interior of the external block (21), the slider (24) being slidably connected to the external block (21), one end of the slider (24) being fixedly connected to a clamping block (25), the outer surface of the clamping block (25) being fixedly connected to a rubber pad (26), and one end of the bidirectional threaded rod (22) being sleeved on a bearing (27).

2. The anti-touch-off mechanism of a resistance tester according to claim 1, characterized in that: The bearing (27) is placed in a groove formed inside the external block (21); the bearing (27) is fixedly connected to the inner wall of the external block (21) and the outer surface of the bidirectional threaded rod (22); and one end of the bidirectional threaded rod (22) away from the bearing (27) is fixedly connected to a hexagonal screw block (28).

3. The anti-touch-off mechanism of a resistance tester according to claim 1, characterized in that: A clamping mechanism (3) is provided on both sides of the tester body (1), the clamping mechanism (3) comprising a fixing block 1 (31), the fixing block 1 (31) being fixedly connected to an external block (21), a fixing block 2 (32) being provided at the bottom of the fixing block 1 (31), and a rubber pad 2 (33) being fixedly connected to the inner wall of the fixing block 2 (32) and the fixing block 1 (31).

4. The anti-touch-off mechanism of a resistance tester according to claim 3, characterized in that: The outer surface of the fixing block 1 (31) is fixedly connected to the connecting block 1 (34), the outer surface of the fixing block 2 (32) is fixedly connected to the connecting block 2 (35), and a hexagonal nut (37) is arranged in the hexagonal groove on the connecting block 2 (35).

5. The anti-touch-off mechanism of a resistance tester according to claim 4, characterized in that: The connection block 1 (34) and the hexagonal nut (37) are both sleeved with a cross bolt (36), the cross bolt (36) is slidably connected to the connection block 1 (34), and the cross bolt (36) is threadedly connected to the hexagonal nut (37).

6. The anti-touch-off mechanism of a resistance tester according to claim 1, characterized in that: A connecting mechanism (4) is provided on the top of the tester body (1), and the connecting mechanism (4) comprises a connecting rod (41), and hexagonal bolts (42) penetrate the interior of the connecting rod (41) and the fixing block 1 (31).

7. The anti-touch-off mechanism of a resistance tester according to claim 6, characterized in that: The hexagonal bolt (42) is slidably connected to the connecting rod (41), and the hexagonal bolt (42) is threadedly connected to the fixing block 1 (31).

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