CN212989487U

CN212989487U - Loop resistance tester

Info

Publication number: CN212989487U
Application number: CN202021676500.4U
Authority: CN
Inventors: 陈海波
Original assignee: Wuhan Zhongbo Electrical Equipment Manufacturing Co ltd
Current assignee: Wuhan Zhongbo Electrical Equipment Manufacturing Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-16
Anticipated expiration: 2030-08-13

Abstract

The utility model relates to the technical field of loop resistance tester, in particular to a loop resistance tester, which comprises a tester main body, wherein the outer side of the tester main body is provided with a test box, the test box is correspondingly provided with a box cover, the front side of the test box is provided with a handle, the bottom of the test box is provided with a buffer block, the bottom of the buffer block is provided with an anti-skid pad, the bottom of the test box is provided with a buffer cavity corresponding to the buffer block, the periphery of the end part of the buffer block is provided with a clamping block, the buffer block is arranged inside the buffer cavity, the end part of the buffer block and the left and right sides of the buffer block are provided with baffle plates, the corners of the left and right sides of the buffer block and the corners of the upper side wall of the buffer cavity are provided with first connecting parts, the corner part of the end part of the buffer, the utility model discloses a design can improve the holistic stability of return circuit resistance tester and practicality.

Description

Loop resistance tester

Technical Field

The utility model relates to a return circuit resistance tester technical field specifically is a return circuit resistance tester.

Background

According to the requirements of preventive test regulations of power equipment, the conducting loop resistance of various switch equipment is tested, and the test current of the conducting loop resistance is not less than 100A. Because the contact resistance is increased due to the oxidation of the contact surface, poor contact fastening and the like, when a large current flows, the temperature of a contact point is increased, which further accelerates the oxidation of the contact surface, further increases the contact resistance, and serious accidents are continuously generated, so that the contact resistance is necessary to be measured frequently or regularly, a loop resistance tester is also called as a contact resistance tester, the measurement of the conductive loop resistance of various switch equipment is carried out, the test current of the conductive loop resistance tester is not less than 100A, the design structure of the existing loop resistance tester in life is too simple, the test box of the existing loop resistance tester is inconvenient to carry, the stability is generally low when the loop resistance tester is placed, the internal loop resistance tester is easily damaged by higher vibration due to inertia when the test box is placed, and the whole service life of the loop resistance tester is influenced, influence the normal use of return circuit resistance tester simultaneously, lead to measuring result inaccurate, overall stability and practicality are generally not high, consequently to current return circuit resistance tester's improvement, design a novel return circuit resistance tester in order to change above-mentioned technical defect, improve whole return circuit resistance tester's practicality, seem especially important.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a loop resistance tester to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a return circuit resistance tester, includes the tester main part, the outside of tester main part is provided with the test box, the test box corresponds and is provided with the case lid, the front of test box is provided with the handle, the bottom of test box is provided with the buffer block, the bottom of buffer block is provided with the slipmat, the buffer chamber has been seted up to the corresponding buffer block in bottom of test box, be provided with the joint piece around the buffer block tip, the inside of buffer chamber is provided with the blotter, the tip of buffer block and the left and right sides that is located the blotter are provided with the baffle, the corner that the left and right sides of blotter just is located the buffer chamber upper wall all is provided with first connecting portion, the corner of buffer block tip and the position department of corresponding first connecting portion are provided with the second connecting portion, the inside of second connecting portion is provided with damping.

Preferably, the test box and the outer side of the box cover are correspondingly provided with a lock catch.

Preferably, a sealing ring is arranged at the cover closing position of the box cover and the test box correspondingly.

Preferably, the connection mode of the buffer block and the test box is sliding connection.

Preferably, the non-slip mat is made of natural rubber, and a plurality of fine particles are uniformly arranged at the bottom of the non-slip mat.

Preferably, the second connecting portion extends to the inside of the first connecting portion, and the first connecting portion and the second connecting portion are connected in a sliding manner.

Preferably, the damping spring is internally provided with a telescopic rod, and the upper end and the lower end of the telescopic rod are respectively fixedly connected with the test box and the buffer block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, through the design of return circuit resistance tester, the slipmat can increase the stability that the test box was placed, the blotter can play the cushioning effect to the buffer block, combine damping spring to play double buffering to the buffer block, it is more stable when placing the tester main part, the buffer block utilizes blotter and damping spring to play the effect of shock attenuation protection to the tester main part, inside violent vibrations can not appear when making the tester main part place, the security of tester main part has been protected, the tester main part is difficult for causing the damage, the test result is more accurate reliable, overall stability and practicality are higher.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the overall structure of the present invention;

fig. 3 is a sectional view of the whole internal structure of the present invention.

In the figure: 1-a tester main body, 2-a test box, 3-a box cover, 4-a handle, 5-a buffer block, 6-an anti-skid pad, 7-a buffer cavity, 8-a clamping block, 9-a buffer pad, 10-a baffle, 11-a first connecting part, 12-a second connecting part and 13-a damping spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a loop resistance tester comprises a tester main body 1, a test box 2 is arranged on the outer side of the tester main body 1, a box cover 3 is correspondingly arranged on the test box 2, a lock catch is correspondingly arranged on the outer sides of the test box 2 and the box cover 3, a sealing ring is correspondingly arranged at the cover part of the box cover 3 and the test box 2, a handle 4 is arranged on the front side of the test box 2, a buffer block 5 is arranged at the bottom of the test box 2, the buffer block 5 is connected with the test box 2 in a sliding manner, an anti-skid pad 6 is arranged at the bottom of the buffer block 5, the anti-skid pad 6 is made of natural rubber, a plurality of fine particles are uniformly arranged at the bottom of the anti-skid pad 6, a buffer cavity 7 is arranged at the bottom of the test box 2 corresponding to the buffer block 5, clamping blocks 8 are arranged around the end part of the buffer block 5, a buffer cushion 9 is arranged inside the buffer cavity 7, the corner of lateral wall all is provided with first connecting portion 11 on the left and right sides of blotter 9 and being located cushion chamber 7, the corner of 5 tip of buffer block and the position department of corresponding first connecting portion 11 are provided with second connecting portion 12, second connecting portion 12 extends to the inside of first connecting portion 11, first connecting portion 11 is sliding connection with the connected mode of second connecting portion 12, the inside of second connecting portion 12 is provided with damping spring 13, damping spring 13's inside is provided with the liter pole that contracts, and the upper and lower both ends of telescopic link respectively with test box 2 and buffer block 5 fixed connection.

The utility model discloses work flow: when the loop resistance tester is used, firstly, the test box 2 is carried to an appointed area through the handle 4, then the test box 2 is stably placed in an appointed working area through the buffer block 5, when the test box is placed, the buffer block 5 plays a role of shock absorption and buffering for the tester main body 1 through the buffer pad 9 and the shock absorption spring 13, then the box cover 3 of the test box 2 is opened, the tester main body 1 in the test box 2 can be used, the whole operation flow is simple and convenient, through the design of the loop resistance tester, the anti-skid pad 6 can increase the placing stability of the test box 2, the buffer pad 9 can play a role of buffering for the buffer block 5, the buffer block 5 is dually buffered through the shock absorption spring 13, the tester main body 1 is placed more stably, and the buffer block 5 plays a role of shock absorption and protection for the tester main body 1 through the buffer pad 9 and the shock absorption spring 13, make inside violent vibrations can not appear when tester main part 1 is placed, protected tester main part 1's security, tester main part 1 is difficult for causing the damage, and the test result is more accurate reliable, compares with current loop resistance tester, the utility model discloses a design can improve the holistic stability of loop resistance tester and practicality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a loop resistance tester, includes tester main part (1), its characterized in that: the outside of tester main part (1) is provided with test box (2), test box (2) corresponding be provided with case lid (3), the front of test box (2) is provided with handle (4), the bottom of test box (2) is provided with buffer block (5), the bottom of buffer block (5) is provided with slipmat (6), buffer chamber (7) have been seted up to buffer block (5) that the bottom of test box (2) corresponds, be provided with joint piece (8) around buffer block (5) tip, the inside of buffer chamber (7) is provided with blotter (9), the tip of buffer block (5) and the left and right sides that are located blotter (9) are provided with baffle (10), the left and right sides of blotter (9) and the corner that is located lateral wall all are provided with first connecting portion (11) on buffer chamber (7), the corner of buffer block (5) tip and the position department of corresponding first connecting portion (11) are provided with the second The damping device comprises two connecting parts (12), and a damping spring (13) is arranged inside the second connecting part (12).

2. The loop resistance tester of claim 1, wherein: the outer sides of the test box (2) and the box cover (3) are correspondingly provided with lock catches.

3. The loop resistance tester of claim 1, wherein: and sealing rings are correspondingly arranged at the cover closing positions of the box cover (3) and the test box (2).

4. The loop resistance tester of claim 1, wherein: the buffer block (5) is connected with the test box (2) in a sliding manner.

5. The loop resistance tester of claim 1, wherein: the non-slip mat (6) is made of natural rubber, and a plurality of fine particles are uniformly arranged at the bottom of the non-slip mat (6).

6. The loop resistance tester of claim 1, wherein: the second connecting portion (12) extends to the inside of the first connecting portion (11), and the first connecting portion (11) is connected with the second connecting portion (12) in a sliding mode.

7. The loop resistance tester of claim 1, wherein: the inside of damping spring (13) is provided with the telescopic link, and the upper and lower both ends of telescopic link respectively with test box (2) and buffer block (5) fixed connection.