Contact contact resistance testing device

Abstract

The utility model relates to the technical field of resistance testing, in particular to a contact resistance testing device for contacts, which comprises a bottom plate, a fixing box and a driving motor are fixedly connected to the surface of the bottom plate respectively, a disc is fixedly connected to the output end of the driving motor, a round rod is fixedly connected to the surface of the disc, and a sliding plate is slidably connected in the fixing box. The top of the sliding plate is fixedly connected with a top plate, the bottom of the top plate is fixedly connected with a lantern ring through an abutting rod, the lantern ring is arranged outside the disc, and the round rod extends into the lantern ring and is slidably connected with the lantern ring. Through cooperative use of a driving motor, a disc, a round rod, a lantern ring, an abutting rod, a fixing box and a sliding plate, the terrain clearance of a top plate, a first contact and a second contact can be adjusted, then the whole testing device can be suitable for testers of different heights, the practicability of the testing device in use is improved, and the use range of the testing device in use is widened. Therefore, the tall testers are prevented from bending down frequently, and the testing convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testing, in particular to a contact point resistance testing device. Background Art

[0002] The insulation resistance tester is suitable for insulation testing in the maintenance, repair, testing and verification of various electrical equipment. The insulation resistance graduation line is uniform and clear, which is convenient for accurate reading. It is simple to operate and easy to carry. It has low power consumption and is powered by 8×1.5V (AA, R6) batteries, which has a long service life. It has a battery capacity inspection function. A resistance tester is required when testing resistance.

[0003] A contact resistance test device with a Chinese authorized announcement number of CN207924016U can intuitively obtain the contact force value between the contacts through a digital touch pressure gauge, which is convenient for adjusting the contact force between the contacts. The installation frame of the utility model is fixed to the fixed rod by a locking knob, which is convenient for the disassembly, installation and transportation of the contact resistance test device. The fixed rod of the utility model is provided with a linear slide rail that facilitates the up and down sliding of the installation frame, so that the installation frame can slide up and down along the linear slide rail. The contact pressure adjustment knob of the utility model passes through the fixed rod and the installation frame and is connected to the digital touch pressure gauge, which is convenient for adjusting the contact force between the upper and lower contacts and facilitating the measurement of resistance.

[0004] There are still some shortcomings in use. When testing resistance, the upper measuring probe and the lower measuring probe are exposed to the outside, which makes it easy for dust to adhere to the surface of the upper measuring probe and the lower measuring probe, thereby reducing the accuracy of the resistance test. In addition, the height of the entire testing device is fixed. When a tall tester performs a resistance test, he needs to bend down frequently, which reduces the quality and convenience of the resistance test. Utility Model Content

[0005] The utility model aims to provide a contact resistance testing device to solve the problem proposed in the above-mentioned background technology that when testing resistance, both the upper measuring probe and the lower measuring probe are exposed to the outside, making it easy for dust to adhere to the surfaces of the upper measuring probe and the lower measuring probe, thereby reducing the test accuracy of the resistance, and the height of the entire testing device is fixed, so when a tall tester performs a resistance test, he needs to bend down frequently, which reduces the quality and convenience of the resistance test.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A contact resistance testing device comprises a base plate, a fixing box and a driving motor are respectively fixedly connected to the surface of the base plate, a disc is fixedly connected to the output end of the driving motor, a round rod is fixedly connected to the surface of the disc, a slide plate is slidably connected in the fixing box, a top plate is fixedly connected to the top of the slide plate, a collar is fixedly connected to the bottom of the top plate via a push rod, the collar is arranged on the outside of the disc, the round rod extends into the collar and is slidably connected to the collar, a vertical plate is fixedly connected to the surface of the top plate, a display screen is fixedly connected to one side of the vertical plate, and an electrostatic adsorption plate is fixedly connected to the other side of the vertical plate.

[0008] As a preferred solution of the utility model, an electric telescopic rod is fixedly connected to the side of the top plate, a micro cylinder is installed on the top of the electric telescopic rod, and a side plate is fixedly connected to the side end of the micro cylinder.

[0009] As a preferred solution of the utility model, a soft brush is fixedly connected to the side of the side plate, a second contact is fixedly connected to the surface of the top plate, and a fixing plate is fixedly connected to the top of the top plate.

[0010] As a preferred solution of the utility model, the side of the fixed plate is slidably connected to the movable plate, the internal thread of the fixed plate is connected to the fastening bolt, and the side end of the fastening bolt abuts against the movable plate.

[0011] As a preferred solution of the utility model, a first contact is fixedly connected to the bottom of the movable plate, and the first contact is opposite to the second contact.

[0012] As a preferred solution of the utility model, a universal wheel is arranged at the bottom of the base plate, and the universal wheel is movably connected to the base plate.

[0013] As a preferred solution of the utility model, the material of the collar is stainless steel, and the shapes of the two ends of the collar are circular.

[0014] As a preferred solution of the utility model, the support rod is fixedly connected to the bottom center of the top plate, and the shape of the support rod is rectangular.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, by setting the coordinated use of the driving motor, the disc, the round rod, the collar, the support rod, the fixing box and the slide plate, the height of the top plate, the first contact and the second contact from the ground can be adjusted, so that the entire test device can be suitable for testers of different heights, thereby improving the practicality and scope of use of the test device during use, avoiding frequent bending of testers with tall heights, and improving the convenience during testing.

[0017] 2. In the utility model, by setting the electric telescopic rod, micro cylinder, side plate, soft brush, vertical plate and electrostatic adsorption plate for coordinated use, the side plate and the soft brush can be driven to move in a circular motion. The soft brush can be used to remove dust on the surfaces of the first contact and the second contact to avoid the presence of dust and reduce the accuracy of the resistance test. At the same time, the electrostatic adsorption plate can adsorb dust to avoid the occurrence of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first contact and the second contact of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the vertical plate and the electrostatic adsorption plate of the utility model.

[0022] In the figure: 1, bottom plate; 2, universal wheel; 3, fixed box; 4, skateboard; 5, top plate; 6, vertical plate; 7, display screen; 8, movable plate; 9, fixed plate; 10, first contact point; 11, second contact point; 12, disc; 13, sleeve ring; 14, round rod; 15, push rod; 16, electric telescopic rod; 17, micro cylinder; 18, side plate; 19, soft brush; 20, fastening bolt; 21, drive motor; 22, electrostatic adsorption plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A contact resistance testing device comprises a bottom plate 1, a fixing box 3 and a driving motor 21 are fixedly connected to the surface of the bottom plate 1, a disc 12 is fixedly connected to the output end of the driving motor 21, a round rod 14 is fixedly connected to the surface of the disc 12, a slide plate 4 is slidably connected in the fixing box 3, a top plate 5 is fixedly connected to the top of the slide plate 4, a collar 13 is fixedly connected to the bottom of the top plate 5 through a push rod 15, the collar 13 is arranged outside the disc 12, the round rod 14 extends into the collar 13 and is slidably connected to the collar 13, a vertical plate 6 is fixedly connected to the surface of the top plate 5, a display screen 7 is fixedly connected to one side of the vertical plate 6, and an electrostatic adsorption plate 22 is fixedly connected to the other side of the vertical plate 6.

[0026] In this embodiment, Figure 2 and Figure 3 As shown, an electric telescopic rod 16 is fixedly connected to the side of the top plate 5, a miniature cylinder 17 is installed on the top of the electric telescopic rod 16, a side end of the miniature cylinder 17 is fixedly connected to a side plate 18, a side of the side plate 18 is fixedly connected to a soft brush 19, a second contact 11 is fixedly connected to the surface of the top plate 5, a fixed plate 9 is fixedly connected to the top of the top plate 5, a movable plate 8 is slidably connected to the side of the fixed plate 9, a fastening bolt 20 is connected to the internal thread of the fixed plate 9, and the side end of the fastening bolt 20 is abutted against the movable plate 8.

[0027] Among them, the height of the top plate 5, the first contact 10 and the second contact 11 from the ground can be adjusted, so that the entire testing device can be suitable for testers of different heights, thereby improving the practicality and scope of use of the testing device during use, avoiding frequent bending of taller testers, and improving convenience during testing.

[0028] In this embodiment, Figure 1 and Figure 4 As shown, a first contact 10 is fixedly connected to the bottom of the movable plate 8, and the first contact 10 and the second contact 11 are positioned opposite to each other. A universal wheel 2 is provided at the bottom of the bottom plate 1, and the universal wheel 2 is movably connected to the bottom plate 1. The material of the ring 13 is stainless steel, and the shapes of the two ends of the ring 13 are circular. A support rod 15 is fixedly connected to the bottom center of the top plate 5, and the shape of the support rod 15 is rectangular.

[0029] Among them, the side panel 18 and the soft brush 19 can be driven to move in a circular motion. The soft brush 19 can be used to clean the dust on the surface of the first contact 10 and the second contact 11 to avoid the presence of dust and reduce the accuracy of the resistance test. At the same time, the dust can be adsorbed by the electrostatic adsorption plate 22 to avoid the occurrence of dust.

[0030] Working process of the utility model: when the contact resistance test device designed by the present invention is in operation, the switch of the micro cylinder 17 is turned on, and the side plate 18 and the soft brush 19 are driven by the micro cylinder 17 to move in a circular motion. The dust on the surface of the first contact 10 and the second contact 11 can be removed by the movement of the soft brush 19, so as to improve the test accuracy of the resistance of the first contact 10 and the second contact 11. Then, the dust is adsorbed by the electrostatic adsorption plate 22 to avoid the phenomenon of dust, and the tested resistance value is displayed by the display screen 7. When it is necessary to adjust the height of the first contact 10 and the second contact 11 from the ground, the switch of the drive motor 21 is turned on at this time, and the disc 12 and the round rod 14 are driven to rotate by the drive motor 21. The ring 13, the support rod 15, the top plate 5, the first contact 10 and the second contact 11 are driven by the round rod 14 to move up and down, so that the height of the first contact 10 and the second contact 11 from the ground can be adjusted, so that the test device can be suitable for side-viewing personnel of different heights, and it is more convenient to use.

[0031] Although the 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 contact resistance testing device, comprising a base plate (1), characterized in that: The surface of the bottom plate (1) is fixedly connected to a fixing box (3) and a driving motor (21), respectively; the output end of the driving motor (21) is fixedly connected to a disc (12); the surface of the disc (12) is fixedly connected to a round rod (14); a slide plate (4) is slidably connected inside the fixing box (3); the top of the slide plate (4) is fixedly connected to a top plate (5); the bottom of the top plate (5) is fixedly connected to a sleeve ring (13) via a push rod (15); the sleeve ring (13) is arranged outside the disc (12); the round rod (14) extends into the sleeve ring (13) and is slidably connected to the sleeve ring (13); the surface of the top plate (5) is fixedly connected to a vertical plate (6); one side of the vertical plate (6) is fixedly connected to a display screen (7); the other side of the vertical plate (6) is fixedly connected to an electrostatic adsorption plate (22).

2. A contact resistance testing device according to claim 1, characterized in that: An electric telescopic rod (16) is fixedly connected to the side of the top plate (5), a micro cylinder (17) is installed on the top of the electric telescopic rod (16), and a side plate (18) is fixedly connected to the side end of the micro cylinder (17).

3. A contact resistance testing device according to claim 2, characterized in that: A soft brush (19) is fixedly connected to the side of the side plate (18), a second contact point (11) is fixedly connected to the surface of the top plate (5), and a fixing plate (9) is fixedly connected to the top of the top plate (5).

4. A contact resistance testing device according to claim 3, characterized in that: The side of the fixed plate (9) is slidably connected to the movable plate (8), and the internal thread of the fixed plate (9) is connected to a fastening bolt (20), and the side end of the fastening bolt (20) abuts against the movable plate (8).

5. A contact resistance testing device according to claim 4, characterized in that: A first contact point (10) is fixedly connected to the bottom of the movable plate (8), and the first contact point (10) and the second contact point (11) are located opposite to each other.

6. A contact resistance testing device according to claim 1, characterized in that: A universal wheel (2) is provided at the bottom of the base plate (1), and the universal wheel (2) is movably connected to the base plate (1).

7. A contact resistance testing device according to claim 1, characterized in that: The material of the collar (13) is stainless steel, and the shapes of the two ends of the collar (13) are circular.

8. A contact resistance testing device according to claim 1, characterized in that: The support rod (15) is fixedly connected to the bottom center of the top plate (5), and the shape of the support rod (15) is rectangular.

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