On-resistance measuring instrument

Abstract

The utility model belongs to the technical field of on-resistance measurement, and discloses an on-resistance measuring instrument which comprises a measuring instrument body, the front end of the measuring instrument body is fixedly connected with a display screen and a line interface, the rear end of the measuring instrument body is slidably connected with a clamping assembly, and the rear end of the measuring instrument body is rotatably connected with a supporting assembly. The clamping assembly comprises two pairs of sliding blocks, the ends, away from each other, of the two pairs of sliding blocks are fixedly connected with first springs, a supporting connecting rod is fixedly connected between the sliding blocks, the outer surface of the supporting connecting rod is sleeved with a clamping fixing rod, and the end, away from the measuring instrument body, of the clamping fixing rod is fixedly connected with an anti-skid pad. Through cooperation of the clamping assembly and the supporting assembly, the problem that the efficiency is not high when a technician uses equipment for detection with one hand can be well solved, through cooperation of a pair of supporting connecting rods and a pair of clamping fixing rods, clamping can be conveniently conducted, and through cooperation of a first supporting rod and a second supporting rod, the detection efficiency is improved. And the detector body can be conveniently supported.

Description

Technical Field

[0001] The utility model belongs to the technical field of on-resistance measurement, in particular to an on-resistance measuring instrument. Background Art

[0002] The on-resistance tester is the fundamental guarantee for the safe operation of power equipment and the personal safety of operators. This product is an essential testing equipment for power, telecommunications, petrochemical, railway, metallurgy and other industries. The on-resistance tester is powered by a DC constant current power supply and adopts the four-wire measurement principle to effectively eliminate the influence of the test line resistance on the test results, and can directly obtain the milliohm resistance data of the measurement loop. In addition, the instrument uses the latest high-precision measurement circuit, has strong interference ability, is easy to operate, and measures data quickly, accurately and reliably.

[0003] As equipment frequently used in the power maintenance industry, traditional on-resistance testers are generally large in size.

[0004] It is inconvenient for power maintenance personnel to carry it, so relevant technicians have designed a smaller on-resistance tester that can be held in hand. However, when performing large-scale maintenance, it is not efficient to use a measuring pen with one hand, and it is troublesome to place the equipment on the ground and view the data. Therefore, a on-resistance measuring instrument is proposed to address the above problems. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a conduction resistance measuring instrument, which can solve the problem of efficiency when technicians use the equipment for detection with one hand.

[0006] To achieve the above object, the utility model provides the following technical solutions: a conduction resistance measuring instrument, comprising a measuring instrument body, a display screen and a line interface are fixedly connected to the front end of the measuring instrument body, a clamping assembly is slidably connected to the rear end of the measuring instrument body, and a supporting assembly is rotatably connected to the rear end of the measuring instrument body;

[0007] The clamping assembly includes two pairs of sliders, and the ends of the two pairs of sliders away from each other are fixedly connected to the first spring, a supporting connecting rod is fixedly connected between the sliders, a clamping fixing rod is sleeved on the outer surface of the supporting connecting rod, an anti-slip pad is fixedly connected to the end of the clamping fixing rod away from the measuring instrument body, a bayonet is slidably connected to the inner cavity of the clamping fixing rod, a second spring is fixedly connected to the inner cavity of the clamping fixing rod, the end of the second spring away from the clamping fixing rod is fixedly connected to the bayonet, and a fixing groove is provided at the end of the supporting connecting rod away from the measuring instrument body.

[0008] Preferably, the support assembly comprises a first support rod rotatably connected to a measuring instrument body, and a second support rod is rotatably connected to an inner cavity of the first support rod.

[0009] Preferably, the slider is slidably connected to the inner cavity of the measuring instrument body, and one end of the first spring away from the slider is fixedly connected to the inside of the measuring instrument body.

[0010] Preferably, the bayonet passes through the clamping and fixing rod and extends to the outer surface of the clamping and fixing rod, and a lifting block is provided at one end of the bayonet located on the outer surface of the clamping and fixing rod.

[0011] Preferably, the fixing groove is located in the middle of the supporting connecting rod, and the fixing groove cooperates with the bayonet pin.

[0012] Preferably, a clamping block and a clamping socket which cooperate with each other are respectively provided at one end of the second support rod away from the first support rod.

[0013] Preferably, a slot is formed at one end of the first support rod away from the measuring instrument body, and the second support rod is provided with a fixing block corresponding to the slot, and the fixing block extends to the outer surface of the first support rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can effectively solve the problem of low efficiency when technicians use the equipment for detection with one hand through the cooperation of the clamping assembly and the supporting assembly. Through the cooperation of a pair of supporting connecting rods and a pair of clamping fixing rods, clamping can be conveniently performed, and through the cooperation of the first support rod and the second support rod, the detector body can be conveniently supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is an exploded view of the parts of the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a front sectional view of the utility model;

[0020] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0021] Figure 6 It is a bottom sectional view of the utility model.

[0022] In the figure: 1. Measuring instrument body; 2. Display screen; 3. Line interface; 4. Clamping assembly; 401. Sliding block; 402. First spring; 403. Support connecting rod; 404. Clamping fixing rod; 405. Anti-slip pad; 406. Pin; 407. Second spring; 408. Fixing groove; 5. Support assembly; 501. First supporting rod; 502. Second supporting rod. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 6 As shown, the utility model provides a conduction resistance measuring instrument, including a measuring instrument body 1, a display screen 2 and a line interface 3 are fixedly connected to the front end of the measuring instrument body 1, a clamping assembly 4 is slidably connected to the rear end of the measuring instrument body 1, and a supporting assembly 5 is rotatably connected to the rear end of the measuring instrument body 1; the clamping assembly 4 includes two pairs of sliders 401, and the ends of the two pairs of sliders 401 away from each other are fixedly connected to the first spring 402, and a supporting connecting rod 403 is fixedly connected between the sliders 401, and a clamping fixing rod 404 is sleeved on the outer surface of the supporting connecting rod 403, and the end of the clamping fixing rod 404 away from the measuring instrument body 1 is fixedly connected to the anti-slip pad 405, and the inner cavity of the clamping fixing rod 404 is slidably connected to the bayonet 406, and the inner cavity of the clamping fixing rod 404 is fixedly connected to the second spring 407, and the end of the second spring 407 away from the clamping fixing rod 404 is fixedly connected to the bayonet 406 , a fixing groove 408 is provided at one end of the supporting connecting rod 403 away from the measuring instrument body 1; by rotating the clamping fixing rod 404 toward the middle, the bayonet 406 is inserted into the fixing groove 408, so that the clamping fixing rod 404 is fixed, and then the clamping fixing rod 404 is pushed to both sides, aligned with the clampable part, and the clamping fixing rod 404 is loosened, so that the measuring instrument body 1 can be fixed, which is convenient for technicians to operate the test pen with both hands and view the measurement data at the same time. When it is inconvenient to clamp, the first supporting rod 501 can be rotated outward, and then the fixing block on the second supporting rod 502 is pushed to make the second supporting rod 502 rotate out, and then the second supporting rod 502 is aligned with the bayonet and the block, and then clamped and fixed, and then the first supporting rod 501 is adjusted to a suitable angle, so that the measuring instrument body 1 can be supported to avoid being placed flat, so that the technicians do not need to frequently turn their sight.

[0025] like Figure 1As shown, the slider 401 is slidably connected to the inner cavity of the measuring instrument body 1, and the end of the first spring 402 away from the slider 401 is fixedly connected to the inside of the measuring instrument body 1, the bayonet 406 passes through the clamping and fixing rod 404 and extends to the outer surface of the clamping and fixing rod 404, and the end of the bayonet 406 located on the outer surface of the clamping and fixing rod 404 is provided with a lifting block, and the fixing groove 408 is located in the middle of the supporting connecting rod 403, and the fixing groove 408 and the bayonet 406 cooperate with each other; through the cooperation between the fixing groove 408 and the bayonet 406, the clamping and fixing rod 404 and the supporting connecting rod 403 can be conveniently fixed, and through the lifting block provided on the bayonet 406, it is convenient to release the fixing of the bayonet 406 to the clamping and fixing rod 404 after use, and retract the clamping and fixing rod 404.

[0026] like Figure 1 As shown, the support assembly 5 includes a first support rod 501 rotatably connected to the measuring instrument body 1, and the second support rod 502 is rotatably connected to the inner cavity of the first support rod 501, and the second support rod 502 is respectively provided with a mutually matching block and a bayonet at one end away from the first support rod 501, and a slot is provided at the end of the first support rod 501 away from the measuring instrument body 1, and the second support rod 502 is provided with a fixing block corresponding to the slot and the fixing block extends to the outer surface of the first support rod 501; the measuring instrument body 1 is conveniently supported by the first support rod 501 and the second support rod 502 when it cannot be clamped, so that the measuring instrument body 1 is tilted, and the support assembly 5 is more stable for the measuring instrument body 1 by respectively providing the blocks and bayonet that cooperate with each other on the second support rod 502, and the second support rod 502 is conveniently opened and stored by providing the fixing block on the second support rod 502.

[0027] The working principle and use process of the utility model are as follows: when in use, when it can be clamped, the clamping fixing rod 404 is rotated toward the middle so that the bayonet 406 is inserted into the fixing groove 408, so that the clamping fixing rod 404 is fixed, and then the clamping fixing rod 404 is pushed to both sides, aligned with the clampable part, and the clamping fixing rod 404 is loosened, so that the measuring instrument body 1 can be fixed, which is convenient for the technician to operate the test pen with both hands and view the measurement data at the same time. When it is inconvenient to clamp, the first support rod 501 can be rotated outward, and then the fixing block on the second support rod 502 is pushed to make the second support rod 502 rotate out, and then the second support rod 502 is aligned with the bayonet and the block, and then it is clamped and fixed, and then the first support rod 501 is adjusted to a suitable angle, so that the measuring instrument body 1 can be supported to avoid being placed flat, so that the technician does not need to frequently turn his or her sight.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] 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 conduction resistance measuring instrument, comprising a measuring instrument body (1), characterized in that: The front end of the measuring instrument body (1) is fixedly connected to a display screen (2) and a line interface (3), the rear end of the measuring instrument body (1) is slidably connected to a clamping assembly (4), and the rear end of the measuring instrument body (1) is rotatably connected to a supporting assembly (5); The clamping assembly (4) comprises two pairs of sliders (401), the ends of the two pairs of sliders (401) away from each other are fixedly connected to a first spring (402), a supporting connecting rod (403) is fixedly connected between the sliders (401), a clamping fixing rod (404) is sleeved on the outer surface of the supporting connecting rod (403), an anti-slip pad (405) is fixedly connected to the end of the clamping fixing rod (404) away from the measuring instrument body (1), a bayonet (406) is slidably connected to the inner cavity of the clamping fixing rod (404), a second spring (407) is fixedly connected to the inner cavity of the clamping fixing rod (404), the end of the second spring (407) away from the clamping fixing rod (404) is fixedly connected to the bayonet (406), and a fixing groove (408) is provided at the end of the supporting connecting rod (403) away from the measuring instrument body (1).

2. The on-resistance measuring instrument according to claim 1, characterized in that: The support assembly (5) comprises a first support rod (501) rotatably connected to the measuring instrument body (1), and a second support rod (502) is rotatably connected to the inner cavity of the first support rod (501).

3. The on-resistance measuring instrument according to claim 1, characterized in that: The slider (401) is slidably connected to the inner cavity of the measuring instrument body (1), and one end of the first spring (402) away from the slider (401) is fixedly connected to the inside of the measuring instrument body (1).

4. The on-resistance measuring instrument according to claim 1, characterized in that: The bayonet (406) passes through the clamping and fixing rod (404) and extends to the outer surface of the clamping and fixing rod (404). A lifting block is provided at one end of the bayonet (406) located on the outer surface of the clamping and fixing rod (404).

5. The on-resistance measuring instrument according to claim 1, characterized in that: The fixing groove (408) is located in the middle of the supporting connecting rod (403), and the fixing groove (408) and the bayonet (406) cooperate with each other.

6. The on-resistance measuring instrument according to claim 2, characterized in that: One end of the second support rod (502) away from the first support rod (501) is respectively provided with a clamping block and a clamping socket which cooperate with each other.

7. The on-resistance measuring instrument according to claim 2, characterized in that: A slot is provided at one end of the first support rod (501) away from the measuring instrument body (1), and a fixing block corresponding to the slot is provided on the second support rod (502), and the fixing block extends to the outer surface of the first support rod (501).

Images