Resistance tester

Abstract

The utility model relates to the technical field of resistance testers, and particularly discloses a resistance tester which comprises a protection box, a tester main body arranged inside the protection box, a plurality of data interfaces arranged at the top of the tester main body, and a plurality of pressing plate assemblies, the plugs are arranged at the top of the tester main body and are in one-to-one correspondence with the data interfaces, so that the plugs are pressed in the data interfaces; the pressing plate assembly is arranged at the upper end of the data interface, after the connector is inserted into the data interface, the pressing plate body is rotated to the upper end of the data connector, then the connecting column is pressed downwards, and the connecting column slides in the first sliding groove till the pressing plate can press the upper end of the data connector. And then the pressing plate body can be limited at the height through the arranged limiting assembly, so that the connector and the data interface are fixed, the height of the pressing plate body can be flexibly adjusted according to the size of the connector, and the connectors of different sizes can be pressed.

Description

Technical Field

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

[0002] The loop resistance tester is a special instrument used to measure the contact resistance and loop resistance of switch control equipment. The instrument has accurate measurement and stable performance. It is suitable for the requirements of on-site high-voltage switch maintenance in power and power supply departments and loop resistance testing in high-voltage switch factories.

[0003] However, the wire length of the existing tester detection pen is limited, which makes it easy for the plug of the detection pen and the jack of the tester to loosen when the detection pen is dragged during the detection process, resulting in poor contact and limited detection accuracy. For this reason, we propose a resistance tester. Utility Model Content

[0004] The utility model aims to provide a resistance tester to solve the problem of poor contact and limited detection accuracy caused by the looseness of the plug of the test pen and the jack of the tester when the test pen is dragged during the detection process proposed in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a resistance tester, comprising: a protection box, a tester body is arranged inside the protection box, a plurality of data interfaces are arranged on the top of the tester body, and further comprising:

[0006] A plurality of pressure plate assemblies are provided and arranged on the top of the tester body corresponding to the data interfaces one by one, so that the plug is pressed into the data interface.

[0007] Among them, the pressure plate assembly includes a connecting column and a sliding column. A sliding groove one adapted to the connecting column is opened on the top of the tester body. The connecting column is slidably installed in the sliding groove one. The pressure plate body is rotatably installed on the top of the connecting column. A sliding cavity adapted to the sliding column is opened inside the connecting column. The sliding column is slidably installed in the sliding cavity. The end of the sliding column away from the connecting column is fixedly installed at the bottom of the groove cavity of the sliding groove one.

[0008] Among them, a spring 1 is sleeved on the surface of the sliding column between the bottom of the connecting column and the bottom of the sliding groove cavity. The top end of the spring 1 is fixedly welded to the bottom of the connecting column, and the bottom end of the spring 1 is fixedly welded to the bottom of the sliding groove cavity.

[0009] Among them, a limit assembly is provided in the tester body, and the limit assembly includes a friction plate. The inner wall of the groove cavity of the first slide is provided with a second slide matched with the friction plate. A second spring is fixedly welded in the second slide, and the friction plate is fixedly welded to the inner end of the second spring.

[0010] Wherein, the inner surface of the friction plate abuts against the surface of the connecting column.

[0011] Among them, an inclined groove is opened in the center of the top of the friction plate, and a slide groove three is opened at the position of the top of the tester body corresponding to the inclined groove. A push rod is slidably installed in the slide groove three, and a connecting block is fixedly installed on the side of the push rod. A slide groove four adapted to the connecting block is opened in the tester body, and the connecting block is slidably installed in the slide groove four. A spring three is fixedly welded in the slide groove four, and the top end of the spring three is fixedly welded to the bottom of the connecting block.

[0012] Wherein, an elastic pad is fixedly installed at the bottom of the pressing plate body.

[0013] The utility model has at least the following beneficial effects:

[0014] The utility model sets a pressure plate assembly at the upper end of the data interface. After the connector is inserted into the data interface, the pressure plate body is rotated to the upper end of the data connector, and then the connecting column is pressed down. The connecting column slides in a slide groove until the pressure plate can be pressed on the upper end of the data connector. Then, the pressure plate body can be limited to the height by the set limit assembly, so that the connector and the data interface are fixed. The pressure plate body can flexibly adjust the height according to the size of the connector, and can press connectors of different sizes, which greatly improves the stability of the connection between the detection pen and the detector body, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the structure of the pressure plate assembly of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the structure of the pressure plate assembly of the utility model;

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

[0019] Figure 5 This is a schematic diagram of the elastic pad structure of the utility model.

[0020] In the figure: 1. protection box; 2. tester body; 3. pressure plate assembly; 31. slide slot 1; 32. slide column; 33. connecting column; 331. slide cavity; 34. spring 1; 35. pressure plate body; 36. limit assembly; 361. friction plate; 362. slide slot 2; 363. spring 2; 364. inclined groove; 365. push rod; 366. slide slot 3; 367. connecting block; 368. slide slot 4; 369. spring 3; 37. elastic pad; 4. data interface. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1

[0023] See also Figure 1-5 The utility model provides a technical solution: a resistance tester, comprising: a protection box 1, a tester body 2 is arranged inside the protection box 1, a plurality of data interfaces 4 are arranged on the top of the tester body 2, and also comprising:

[0024] A plurality of pressing plate assemblies 3 are provided and arranged on the top of the tester body 2 corresponding to the data interface 4 one by one, so that the plug is pressed into the data interface 4;

[0025] The pressure plate assembly 3 includes a connecting column 33 and a sliding column 32. A sliding groove 31 adapted to the connecting column 33 is provided on the top of the tester body 2. The connecting column 33 is slidably installed in the sliding groove 31. A pressure plate body 35 is rotatably installed on the top of the connecting column 33. A sliding cavity 331 adapted to the sliding column 32 is provided inside the connecting column 33. The sliding column 32 is slidably installed in the sliding cavity 331. One end of the sliding column 32 away from the connecting column 33 is fixedly installed at the bottom of the groove cavity of the sliding groove 31.

[0026] After the connector is inserted into the data interface 4, the pressure plate body 35 is rotated to the upper end of the data connector, and then the connecting column 33 is pressed down. The connecting column 33 slides along the sliding column 32 in the sliding groove 31 until the pressure plate body 35 can be pressed on the upper end of the data connector. The pressure plate body 35 can flexibly adjust the height according to the size of the connector, and can press connectors of different sizes, which greatly improves the stability of the connection between the detection pen and the detector body, thereby improving the detection accuracy.

[0027] A spring 34 is sleeved on the surface of the sliding column 32 between the bottom of the connecting column 33 and the bottom of the slot 31. The top of the spring 34 is fixedly welded to the bottom of the connecting column 33, and the bottom of the spring 34 is fixedly welded to the bottom of the slot 31.

[0028] By setting a spring 1 34, the spring 1 34 will be pressed down when the connecting column 33 is lowered. When the limiting component 36 cancels the limiting of the connecting column 33, the connecting column 33 will rebound to the original position under the action of the spring 1 34, canceling the pressure on the connector, making it easy to pull the connector out of the data interface 4, and the operation is simple and convenient.

[0029] The tester body 2 is provided with a limit assembly 36, which includes a friction plate 361. The inner wall of the groove cavity of the first slide groove 31 is provided with a second slide groove 362 adapted to the friction plate 361. A second spring 363 is fixedly welded in the second slide groove 362. The friction plate 361 is fixedly welded to the inner end of the second spring 363.

[0030] The inner surface of the friction plate 361 abuts against the surface of the connecting column 33;

[0031] By setting the friction plate 361, the friction plate 361 abuts against the surface of the connecting column 33, and there is friction between them, so that when the pressure plate body 35 is pressed on the joint, the connecting column 33 can no longer slide freely in the slide groove 31, which greatly improves the stability of the connection between the detection pen and the detection instrument body, thereby improving the detection accuracy.

[0032] An inclined groove 364 is provided at the center of the top of the friction plate 361, and a slide groove 366 is provided at a position on the top of the tester body 2 corresponding to the inclined groove 364. A push rod 365 is slidably installed in the slide groove 366, and a connecting block 367 is fixedly installed on the side of the push rod 365. A slide groove 4 368 adapted to the connecting block 367 is provided in the tester body 2, and the connecting block 367 is slidably installed in the slide groove 4 368. A spring 369 is fixedly welded in the slide groove 4 368, and the top of the spring 369 is fixedly welded to the bottom of the connecting block 367;

[0033] When it is necessary to press down the pressing plate body 35, push the push rod 365, and the push rod 365 will push the inclined surface of the inclined groove 364 opened on the friction plate 361. Through the decomposition of the force, it can be known that the friction plate 361 will be subjected to the force in the direction of the second slide groove 362, so that the friction plate 361 slides into the second slide groove 362 and squeezes the second spring 363. Then, the friction plate 361 and the connecting column 33 are no longer in contact, and the friction between them disappears, so that the connecting column 33 can slide in the first slide groove 31, and the pressing plate can be pressed on the data interface. The upper end of the head, and the pressure plate body 35 can flexibly adjust the height according to the size of the joint, so as to press joints of different sizes. After that, the hand pressing the push rod 365 is released, and the thrust acting on the friction plate 361 disappears, and the friction plate 361 rebounds to its original position under the action of the spring 2 363, and abuts against the connecting column 33. There is friction between them, which avoids sliding in the slide groove 31 and affecting the pressing of the joint, thereby greatly improving the stability of the connection between the detection pen and the tester body 2, thereby improving the detection accuracy.

[0034] Embodiment 2

[0035] An elastic pad 37 is fixedly mounted on the bottom of the pressing plate body 35;

[0036] The elastic pad 37 at the bottom of the pressure plate body 35 presses the connector into the data interface 4 to prevent it from falling off, which greatly improves the stability of the connection between the detection pen and the tester body 2, thereby improving the detection accuracy.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A resistance tester, comprising: A protection box (1), wherein a tester body (2) is arranged inside the protection box (1), and a plurality of data interfaces (4) are arranged on the top of the tester body (2), characterized in that it also includes: A plurality of pressure plate assemblies (3) are provided and arranged on the top of the tester body (2) in one-to-one correspondence with the data interface (4), so that the plug is pressed into the data interface (4).

2. The resistance tester according to claim 1, characterized in that: The pressure plate assembly (3) includes a connecting column (33) and a sliding column (32). A sliding groove (31) adapted to the connecting column (33) is provided on the top of the tester body (2). The connecting column (33) is slidably installed in the sliding groove (31). A pressure plate body (35) is rotatably installed on the top of the connecting column (33). A sliding cavity (331) adapted to the sliding column (32) is provided inside the connecting column (33). The sliding column (32) is slidably installed in the sliding cavity (331). One end of the sliding column (32) away from the connecting column (33) is fixedly installed at the bottom of the groove cavity of the sliding groove (31).

3. The resistance tester according to claim 2, characterized in that: A spring (34) is sleeved on the surface of the slide column (32) at a position between the bottom of the connecting column (33) and the bottom of the groove cavity of the slide groove (31); the top end of the spring (34) is fixedly welded to the bottom of the connecting column (33); and the bottom end of the spring (34) is fixedly welded to the bottom of the groove cavity of the slide groove (31).

4. The resistance tester according to claim 3, characterized in that: The tester body (2) is provided with a limit assembly (36), the limit assembly (36) comprising a friction plate (361), the inner wall of the groove cavity of the first slide groove (31) is provided with a second slide groove (362) adapted to the friction plate (361), a second spring (363) is fixedly welded in the second slide groove (362), and the friction plate (361) is fixedly welded to the inner end of the second spring (363).

5. The resistance tester according to claim 4, characterized in that: The inner surface of the friction plate (361) abuts against the surface of the connecting column (33).

6. The resistance tester according to claim 5, characterized in that: A bevel groove (364) is provided at the center of the top of the friction plate (361), and a slide groove three (366) is provided at a position corresponding to the bevel groove (364) on the top of the tester body (2). A push rod (365) is slidably installed in the slide groove three (366), and a connecting block (367) is fixedly installed on the side of the push rod (365). A slide groove four (368) adapted to the connecting block (367) is provided in the tester body (2), and the connecting block (367) is slidably installed in the slide groove four (368). A spring three (369) is fixedly welded in the slide groove four (368), and the top of the spring three (369) is fixedly welded to the bottom of the connecting block (367).

7. The resistance tester according to claim 6, characterized in that: An elastic pad (37) is fixedly mounted on the bottom of the pressing plate body (35).

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