Novel practical and safe insulation resistance measuring tool

Abstract

The utility model discloses a novel practical and safe insulation resistance measuring tool, which comprises an insulating rod for measurement, a conductive wire clamp fixed at the front end of the insulating rod for measurement, clamping sheets arranged on the inner walls of the two sides of the conductive wire clamp, and a test wire fixing ring arranged on the surface of the bottom of the conductive wire clamp, the trigger type discharge structure comprises a trigger type discharge rod rotationally mounted on the top surface of the insulating rod for measurement, a grounding wire mounted at the bottom end of the trigger type discharge rod and grounded, a reset spring mounted between the trigger type discharge rod and the insulating rod for measurement, and a rope seat mounted on the bottom surface of the trigger type discharge rod; according to the utility model, by designing a novel practical and safe insulation resistance measuring tool, residual charges of equipment after a test is finished can be discharged through a trigger type discharging structure, and dangers caused by discharging of the residual charges of the electrical equipment to personnel in an insulation resistance testing process of the electrical equipment and after the test is finished can be avoided; and the personal safety of on-site operators is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment insulation resistance testing technology, specifically relating to a new, practical and safe insulation resistance measuring tool. Background Technology

[0002] Insulation resistance testing of electrical equipment is an important part of ensuring the safe operation of equipment. Its main purpose is to check whether the insulation performance of the insulation materials of electrical equipment is good, so as to prevent leakage, short circuit and other faults during equipment operation, and ensure personal safety and normal equipment operation. Common methods include using an insulation resistance meter to measure it. A certain DC voltage is applied to the insulation material being tested, the current passing through the insulation material is measured, and the value of insulation resistance is calculated.

[0003] However, existing technologies require the use of insulating gloves when performing insulation resistance tests on electrical equipment (power cables, transformers, generators, etc.). However, if the discharge is not performed after the test, there is a risk of electric shock from residual charge on the electrical equipment, or electric shock from induced voltage if the distance to the conductive parts of the equipment is too close during the test. Therefore, this utility model proposes a new, practical, and safe insulation resistance measuring tool. Utility Model Content

[0004] The purpose of this invention is to provide a new, practical, and safe insulation resistance measuring tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel, practical, and safe insulation resistance measuring tool, comprising...

[0006] Measuring insulating rod, conductive wire clamp fixed to the front end of measuring insulating rod, card installed on the inner walls of both sides of conductive wire clamp, and test wire fixing ring installed on the bottom surface of conductive wire clamp;

[0007] The device includes a trigger-type discharge structure, comprising a trigger-type discharge rod rotatably mounted on the top surface of a measuring insulating rod, a grounding wire mounted on the bottom end of the trigger-type discharge rod and grounded, a reset spring mounted between the trigger-type discharge rod and the measuring insulating rod, a rope seat mounted on the bottom surface of the trigger-type discharge rod, a drive pull rope connected to the bottom of the rope seat, a wire threading port opened through the front end surface of the measuring insulating rod, a wire roller rotatably mounted on the bottom surface of the measuring insulating rod, and a C-shaped handle slidably mounted on the bottom surface of the measuring insulating rod and located at the rear end of the measuring insulating rod. The drive pull rope passes through the wire threading port and wraps around the surface of the wire roller, and the end of the drive pull rope is connected to the C-shaped handle.

[0008] Preferably, the trigger-type discharge structure further includes two side plates fixed to the top of the measuring insulating rod, and the bottom end of the trigger-type discharge rod is rotatably mounted between the two side plates via a rotating shaft.

[0009] Preferably, a spring seat is fixed at the bottom center of the trigger discharge rod, and the top end of the reset spring is installed on the bottom surface of the spring seat, and the bottom end of the reset spring abuts against the top surface of the measuring insulating rod.

[0010] Preferably, a circular guide rod corresponding to the reset spring is fixed on the bottom surface of the spring seat and the top surface of the measuring insulating rod, and the two ends of the reset spring are sleeved on the two guide rods respectively.

[0011] Preferably, the trigger discharge structure further comprises two shaft plates symmetrically fixed on the bottom surface of the measuring insulating rod, and the wire roller is rotatably installed between the two shaft plates through a rotating shaft.

[0012] Preferably, the trigger discharge structure further comprises a T-shaped sliding block, the bottom surface of the measuring insulating rod is provided with a T-shaped sliding groove matched with the T-shaped sliding block, the top surface of the C-shaped handle is fixed with the T-shaped sliding block, and the T-shaped sliding block is slidably located in the T-shaped sliding groove.

[0013] Preferably, the rear end of the measuring insulating rod is further provided with a handle, and the handle is provided with anti-skid lines.

[0014] Preferably, the card is an arc-shaped elastic conductive metal sheet.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a novel practical safe insulating resistance measuring tool, which can realize the discharge of residual charge of equipment after test through the trigger discharge structure, can avoid the danger caused by the discharge of residual charge of electrical equipment to personnel during the insulating resistance test of electrical equipment and after the test is completed, and guarantees the personal safety of on-site operators. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the bottom view of the utility model;

[0017] Fig. 2 It is the top view of the utility model;

[0018] Fig. 3 It is the sectional view of the utility model;

[0019] In the drawing: 1, measuring insulating rod; 11, threading port; 12, T-shaped sliding groove; 13, handle; 2, conductive wire clamp; 21, card; 22, test wire fixing ring; 31, trigger discharge rod; 32, side plate; 33, grounding wire; 34, spring seat; 35, reset spring; 36, rope seat; 37, driving pull rope; 38, shaft plate; 39, wire roller; 310, C-shaped handle; 311, T-shaped sliding block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment

[0022] Please refer to Figs. 1 to 3 For the embodiments of the utility model, the embodiments provide a technical scheme: a novel practical safe insulation resistance measuring tool, comprising

[0023] The measuring insulating rod 1, the conductive clamp 2 fixed at the front end of the measuring insulating rod 1, the card 21 fixedly installed on the inner wall of the two sides of the conductive clamp 2, the test wire fixing ring 22 weldedly installed on the bottom surface of the conductive clamp 2,

[0024] And a trigger discharge structure, comprising a trigger discharge rod 31 rotatably installed on the top surface of the measuring insulating rod 1, a grounding wire 33 installed at the bottom end of the trigger discharge rod 31 and grounded, a reset spring 35 installed between the trigger discharge rod 31 and the measuring insulating rod 1, a rope seat 36 installed on the bottom surface of the trigger discharge rod 31, a driving pull rope 37 connected at the bottom of the rope seat 36, a threading hole 11 penetratingly arranged on the front end surface of the measuring insulating rod 1, a wire roller 39 rotatably installed on the bottom surface of the measuring insulating rod 1, and a C-shaped handle 310 slidably installed on the bottom surface of the measuring insulating rod 1 and located at the rear end of the measuring insulating rod 1, the driving pull rope 37 penetrates through the threading hole 11 and winds around the surface of the wire roller 39, and the end of the driving pull rope 37 is connected with the C-shaped handle 310, and the driving pull rope 37 can be pulled through the sliding of the C-shaped handle 310, and the front end of the trigger discharge rod 31 is driven to rotate downward to be attached to the conductive clamp 2, so that the discharge operation on the electrical equipment clamped in the inner side of the conductive clamp 2 can be realized, and the driving pull rope 37 and the C-shaped handle 310 are made of insulating materials.

[0025] In the embodiment, preferably, the trigger discharge structure further comprises two side plates 32 fixed on the top of the measuring insulating rod 1, and the bottom end of the trigger discharge rod 31 is rotatably installed between the two side plates 32 by a rotating shaft, so that the trigger discharge rod 31 can rotate smoothly.

[0026] In the embodiment, preferably, a spring seat 34 is fixed at the bottom center of the trigger discharge rod 31, the top end of the reset spring 35 is installed on the bottom surface of the spring seat 34, and the bottom end of the reset spring 35 abuts against the top surface of the measuring insulating rod 1.

[0027] In the embodiment, preferably, the bottom surface of the spring seat 34 and the top surface of the measuring insulating rod 1 are both fixed with a circular guide rod corresponding to the reset spring 35, and the two ends of the reset spring 35 are sleeved on the two guide rods, so that the reset spring 35 can be positioned by the guide rods to prevent the reset spring 35 from falling off.

[0028] In the embodiment, preferably, the trigger discharge structure further comprises two shaft plates 38 symmetrically fixed on the bottom surface of the measuring insulating rod 1, and the wire roller 39 is rotatably installed between the two shaft plates 38, and the wire roller 39 can support the driving pull rope 37.

[0029] In the embodiment, preferably, the trigger discharge structure further comprises a T-shaped sliding block 311, and the bottom surface of the measuring insulating rod 1 is provided with a T-shaped sliding groove 12 matched with the T-shaped sliding block 311, and the top surface of the C-shaped handle 310 is fixed with the T-shaped sliding block 311, and the T-shaped sliding block 311 is slidably located in the T-shaped sliding groove 12, so that the C-shaped handle 310 can smoothly slide on the bottom of the measuring insulating rod 1.

[0030] In the embodiment, preferably, the rear end of the measuring insulating rod 1 is further provided with a handle 13, and the handle 13 is provided with anti-skid lines, so as to facilitate the operator to hold the measuring insulating rod 1.

[0031] In the embodiment, preferably, the card 21 is an arc-shaped elastic conductive metal sheet which can elastically deform when being pressed and can realize conduction after clamping the electrical equipment.

[0032] In summary, in actual use, first, the test wire of the insulation resistance meter is fixed on the test wire fixing ring 22, then the end of the grounding wire 33 is grounded, and then the operator holds the handle 13 to stretch the conductive wire clamp 2 at the front end of the measuring insulating rod 1 to the electrical equipment to be tested, so that the electrical equipment can be pushed into the inside of the conductive wire clamp 2 and clamped between the two cards 21, and then the insulation resistance of the electrical equipment can be tested by the insulation resistance meter. Since the measuring insulating rod 1 and the handle 13 are both made of insulating materials, the safety of the testing process can be ensured. When the insulation resistance test of the electrical equipment is completed, the operator can slide the C-shaped handle 310 by hand, so that the driving pull rope 37 pulls the top end of the trigger discharge rod 31, the reset spring 35 at the bottom of the trigger discharge rod 31 is gradually compressed, and the top end of the trigger discharge rod 31 is rotated downward to be in contact with the conductive wire clamp 2. Since the grounding wire 33 is already grounded, and the trigger discharge rod 31, the conductive wire clamp 2 and the card 21 are all conductive, the residual charge on the electrical equipment clamped in the inside of the conductive wire clamp 2 can be transmitted to the ground to realize discharge, so that the electrical equipment clamped in the inside of the conductive wire clamp 2 can be discharged, avoiding electric shock caused by improper test operation and accidents caused by residual charge of the equipment after the test.

[0033] Although the embodiments of the present application have been shown and described (see the detailed description above), it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel, practical, and safe insulation resistance measuring tool, characterized in that: include Measuring insulating rod (1), conductive wire clamp (2) fixed to the front end of measuring insulating rod (1), card (21) installed on the inner walls of both sides of conductive wire clamp (2), and test wire fixing ring (22) installed on the bottom surface of conductive wire clamp (2); The trigger discharge structure includes a trigger discharge rod (31) rotatably mounted on the top surface of the measuring insulating rod (1), a grounding wire (33) mounted on the bottom end of the trigger discharge rod (31) and grounded, a reset spring (35) mounted between the trigger discharge rod (31) and the measuring insulating rod (1), a rope seat (36) mounted on the bottom surface of the trigger discharge rod (31), a drive pull rope (37) connected to the bottom of the rope seat (36), a wire hole (11) through which the measuring insulating rod (1) is opened, a wire roller (39) rotatably mounted on the bottom surface of the measuring insulating rod (1), and a C-shaped handle (310) slidably mounted on the bottom surface of the measuring insulating rod (1) and located at the rear end of the measuring insulating rod (1). The drive pull rope (37) passes through the wire hole (11) and wraps around the surface of the wire roller (39), and the end of the drive pull rope (37) is connected to the C-shaped handle (310).

2. The novel, practical, and safe insulation resistance measuring tool according to claim 1, characterized in that: The trigger-type discharge structure also includes two side plates (32) fixed to the top of the measuring insulating rod (1), and the bottom end of the trigger-type discharge rod (31) is rotatably mounted between the two side plates (32) via a rotating shaft.

3. The novel, practical, and safe insulation resistance measuring tool according to claim 1, characterized in that: A spring seat (34) is fixed at the bottom center of the trigger discharge rod (31), and the top end of the reset spring (35) is installed on the bottom surface of the spring seat (34), with the bottom end of the reset spring (35) abutting against the top surface of the measuring insulating rod (1).

4. The novel, practical, and safe insulation resistance measuring tool according to claim 3, characterized in that: The bottom surface of the spring seat (34) and the top surface of the measuring insulating rod (1) are both fixed with a circular guide rod corresponding to the reset spring (35), and the two ends of the reset spring (35) are respectively sleeved on the two guide rods.

5. The novel, practical, and safe insulation resistance measuring tool according to claim 1, characterized in that: The trigger-type discharge structure also includes two shaft plates (38) symmetrically fixed on the bottom surface of the measuring insulating rod (1), and the wire roller (39) is rotatably mounted between the two shaft plates (38) via a rotating shaft.

6. The novel, practical, and safe insulation resistance measuring tool according to claim 1, characterized in that: The trigger-type discharge structure also includes a T-shaped slider (311). The bottom surface of the measuring insulating rod (1) is provided with a T-shaped groove (12) that is adapted to the T-shaped slider (311). The top surface of the C-shaped handle (310) is fixed with a T-shaped slider (311), and the T-shaped slider (311) slides in the T-shaped groove (12).

7. The novel, practical, and safe insulation resistance measuring tool according to claim 1, characterized in that: The measuring insulating rod (1) is also provided with a handle (13) at its rear end, and the handle (13) is provided with anti-slip texture.

8. The novel, practical, and safe insulation resistance measuring tool according to claim 1, characterized in that: The card (21) is an arc-shaped elastic conductive metal sheet.

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