CN204008734U - A kind of circuit breaker contact persistence test jointer - Google Patents

Abstract

The utility model discloses a wiring tool for testing contact resistance of a circuit breaker, which comprises fixed pliers, movable pliers, a wiring member and a supporting member; The two ends of the pliers are respectively located on opposite sides of the support member, and one end of the fixed pliers matches up and down with one end of the movable pliers to form a jaw that can be opened and closed; the wiring member is attached to the fixed pliers, and the wiring member is provided with a current Terminals and voltage terminals; the other end of the movable clamp is provided with a hanging ring, and a clamp head is fixed on the support member, and the clamp head is provided with a fixed structure for connecting and cooperating with a matching insulating rod. After the utility model adopts the above-mentioned structure, its structure is simple, easy to operate and use, and the staff can conveniently complete the circuit breaker contact resistance test wiring work on the ground without climbing up and wiring, thereby improving work efficiency.

Description

A circuit breaker contact resistance testing wiring tool

technical field

The utility model relates to a tool for electrical equipment, in particular to a wiring tool for testing contact resistance of a circuit breaker.

Background technique

High-voltage class circuit breakers are usually installed on a mid-air frame, three to five meters above the ground. When the circuit breaker is powered off for maintenance, it is often necessary to use an aerial work vehicle to carry out high-altitude operations to complete the circuit breaker contact resistance test connection and disconnection work. In order to complete the contact resistance test of the one-phase circuit breaker, the staff need to use the aerial work vehicle to climb up and down once, and the up and down time occupies 70% of the test time. In order to prevent the aerial work vehicle cloak from being too close to other live equipment Damaged circuit breaker insulation bushings, aerial work vehicles usually operate slowly, resulting in low efficiency of circuit breaker contact resistance testing.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art, and provide a circuit breaker contact resistance test wiring tool, which has a simple structure, convenient operation and use, and the staff can conveniently complete the circuit breaker contact resistance test on the ground without the need for high-level wiring. Test wiring work, improve work efficiency.

The technical scheme adopted by the utility model to solve the technical problem is: a circuit breaker contact resistance test wiring tool, including fixed clamps, movable clamps, wiring components, and supporting components; the fixed clamps are fixedly connected to the supporting components, and the movable clamps can swing up and down The two ends of the movable pliers are respectively located on the opposite sides of the supporting member, and one end of the fixed pliers matches up and down with one end of the movable pliers to form a jaw that can be opened and closed; the wiring member is attached to the Fixed pliers, the wiring member is provided with a current terminal and a voltage terminal; the other end of the movable pliers is provided with a hanging ring, and a pliers head is fixed on the support member, and the pliers head is provided with a matching insulating rod for connection Coordinated fixed structure.

Further, one end of the fixed pliers and one end of the movable pliers are respectively provided with serrations on the opposite inner surfaces, and the serrations at one end of the fixed pliers correspond up and down to the serrations at one end of the movable pliers.

Further, one end of the wiring member is hinged to the other end of the fixed pliers, the wiring member is located above the movable pliers, and there is a fixed connection between the wiring member and the opposite inner surface of the movable pliers. link.

Further, the bottom end of the pliers head is a joint, and the fixing structure includes a plurality of protruding teeth and an opening arranged on the joint, and the plurality of protruding teeth are arranged at intervals in one of the joints along the circumferential direction of the joint. On the end face, the opening is arranged on the side of the joint and passes through the center of the joint.

Further, the current terminal and the voltage terminal are respectively arranged at the other end of the connection member, and form a V shape.

Further, the other end of the movable pliers is provided with a thread, and the side of the hanging ring is provided with a threaded hole, and the threaded hole is screwed with the thread at the other end of the movable pliers, so that the hanging ring is fixed on the The other end of the movable forceps.

Further, the movable tongs are hinged to the support member by a hinge shaft.

Further, a spring is also connected between the fixing clamp and the connecting rod.

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

1. The structure is simple, the operation is convenient and easy to use, the staff can conveniently complete the circuit breaker contact resistance test wiring work on the ground without climbing up and wiring, and improve work efficiency;

2. The utility model further arranges a row of saw teeth on the opposite inner surfaces of one end of the movable pliers and the fixed pliers, so that the movable pliers and the fixed pliers of the utility model can simultaneously pierce the copper-aluminum transition wiring row of the circuit breaker. The oxide film on the surface of the copper-aluminum transition wiring bar of the circuit breaker, so that the oxide film on the surface of the copper-aluminum transition wiring bar of the circuit breaker will not affect the test results of the circuit breaker contact resistance, and improve the accuracy of the test results.

The utility model will be further described in detail below with reference to the accompanying drawings and embodiments; however, a circuit breaker contact resistance testing wiring tool of the utility model is not limited to the embodiments.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Embodiment, please refer to Fig. 1, a circuit breaker contact resistance test wiring tool of the present utility model, including fixed clamp 1, movable clamp 2, wiring member 4, support member 3; fixed clamp 1 is fixedly connected to support member 3 , the movable tongs 2 can be rotatably connected to the support member 3 up and down, and the two ends of the movable tongs 2 are respectively located on opposite sides of the support member 3, and the movable tongs 2 are hinged to the support member 3 by a hinge shaft 7; the fixed tongs One end of 1 is matched up and down with one end of movable pliers 2 to form a jaw that can be opened and closed; the wiring member 4 is attached to the fixed pliers 1, and the wiring member 4 is provided with a current terminal 41 and a voltage terminal 42; the movable pliers The other end of 2 is provided with a hanging ring 8, and a clamp head 5 is fixedly connected to the support member 3, and the clamp head 5 is provided with a fixing structure for connecting and cooperating with a matching insulating rod.

As a preference, one end of the fixed pliers 1 and one end of the movable pliers 2 are respectively provided with a row of sawtooths 9 on the opposite inner surface, and the sawtooth 9 at one end of the fixed pliers 1 and the sawtooth 9 at one end of the movable pliers 2 are up and down. Corresponding. During the long-term operation of the circuit breaker, due to the oxidation of air and water vapor, a thick layer of oxide film will be formed on the surface of the copper-aluminum transition terminal block of the circuit breaker, resulting in a large additional resistance, resulting in the contact resistance test of the upper and lower contacts of the circuit breaker. The result is too large, which is not conducive to accurately judging whether the contact between the upper and lower contacts of the circuit breaker is reliable and whether the flow performance of the upper and lower contacts is good. Therefore, after the sawtooth 9 is set on the movable pliers 2 and the fixed pliers 1 in the utility model, the movable pliers 2 and the fixed pliers 1 can use the sawtooth 9 to pierce the copper-aluminum transition line of the circuit breaker when clamping the copper-aluminum transition wiring row of the circuit breaker. The oxide film on the surface of the wiring bar, so that the oxide film on the surface of the copper-aluminum transition wiring bar of the circuit breaker will not affect the test results of the circuit breaker contact resistance, and improve the accuracy of the test results.

As a preference, one end of the wiring member 4 is hinged to the other end of the fixed tongs 1, the wiring member 4 is located above the movable tongs 2, and the wiring member 4 is connected to the movable tongs 2. A connecting rod 10 is fixedly connected between the opposite inner surfaces, and a spring 11 is also connected between the connecting rod 10 and the fixed clamp 1 . The current terminal 41 and the voltage terminal 42 are respectively provided at the other end of the connection member 4 and form a V shape. Here, the wiring member 4 is hinged to the fixed tongs 1, and is connected and fixed with the movable tongs 2 with the connecting rod 10, so that the wiring member 4 and the movable tongs 2 can act synchronously, and avoid contact with the wiring when the movable tongs 2 swing upward at an excessively large angle. Component 4 interferes. In addition, if the movable tongs 2 do not interfere with the wiring member 4 during rotation, the wiring member 4 can be fixedly connected directly to the fixed tongs 1 .

As a preference, the bottom end of the pliers head 5 is a joint 6, the fixed structure includes a plurality of protruding teeth 61 and an opening 62 arranged on the joint 6, and the plurality of protruding teeth 61 are arranged along the joint 6. The circumferential direction is arranged at intervals on one end surface of the joint 6 , and the opening 62 is provided on the side of the joint 6 and passes through the center of the joint 6 . Specifically, the depth of the opening 62 is two-thirds of the joint 6 directly.

As a preference, the other end of the movable pliers 2 is provided with a thread 21, and the side of the hanging ring 8 is provided with a threaded hole 81, and the threaded hole 81 is screwed with the thread 21 at the other end of the movable pliers 2, The hanging ring 8 is fixedly connected to the other end of the movable clamp 2 .

The utility model relates to a circuit breaker contact resistance test wiring tool, all parts of which are made of metal conductive materials. Cooperate with an insulating rod and an insulating pull rod to use when using on the spot, specifically, one end connector of the insulating rod is provided with the structure matching with the fixed structure on the pliers head 5 of the present utility model, and, one end connector of the insulating rod also There are a plurality of protruding teeth and side openings; the head of the pull rod is provided with a hook matched with the hanging ring 8 on the movable clamp 2 .

When the utility model is used on site, the voltage test line is clamped on the voltage terminal 42 of the wiring member 4 with alligator clips, the current test line is clamped on the current terminal 41 of the wiring member 4 with alligator clips, and the insulating rod The protruding teeth of the joint are engaged with the protruding teeth 61 of the joint 6 on the pliers head 5, and the screws are used to pass through the opening of the joint 6 of the insulating rod and the opening 62 of the joint 6 on the pliers head 5 in sequence and locked with nuts, so that the insulating rod and the support Component 3 is fixedly connected into one body, and the insulating rod is lifted; the hook on the head of the pull rod is hooked to the hanging ring 8 on the movable pliers 2 and the pull rod is lifted upward, so that the movable pliers 2 rotate counterclockwise around its hinge axis 7, and open The occlusal part of the jaws of the fixed clamp 1 and the movable clamp 2 discharges the copper-aluminum transition wire of the circuit breaker into the jaw formed by one end of the fixed clamp 1 and one end of the movable clamp 2; pull down the pull rod so that the movable clamp 2 surrounds the hinge shaft 7 Rotate clockwise until the jaws formed by one end of fixed pliers 1 and one end of movable pliers 2 tightly bite the copper-aluminum transition wiring bar of the circuit breaker, and at the same time pierce the oxide film on the surface of the copper-aluminum transition wiring bar of the circuit breaker, making the copper of the circuit breaker The oxide film on the surface of the aluminum transition terminal block will not affect the test results of the circuit breaker contact resistance, which improves the accuracy of the test results.

The utility model relates to a circuit breaker contact resistance testing wiring tool, which can also be applied to equipment with different voltage levels.

The above embodiments are only used to further illustrate a circuit breaker contact resistance testing wiring tool of the present invention, but the present invention is not limited to the embodiments, and any simple modification made to the above embodiments according to the technical essence of the present invention , equivalent changes and modifications all fall within the protection scope of the technical solution of the utility model.

Claims (8)

1. A circuit breaker contact resistance testing wiring tool is characterized in that: comprise fixed pliers, movable pliers, wiring member, supporting member; The two ends of the movable pliers are respectively located on opposite sides of the support member, and one end of the fixed pliers matches up and down with one end of the movable pliers to form a jaw that can be opened and closed; the wiring member is attached to the fixed pliers, and the wiring member is provided with A current terminal and a voltage terminal; the other end of the movable pliers is provided with a hanging ring, and a pliers head is affixed to the supporting member, and the pliers head is provided with a fixed structure for connecting and cooperating with a matching insulating rod. 2. The circuit breaker contact resistance test wiring tool according to claim 1, characterized in that: one end of the fixed pliers and one end of the movable pliers are respectively provided with serrations on the opposite inner surface, and the serrations at one end of the fixed pliers are in line with the The saw teeth at one end of the movable pliers correspond up and down. 3. The circuit breaker contact resistance test wiring tool according to claim 1, wherein one end of the wiring member is hinged to the other end of the fixed clamp, the wiring member is located above the movable clamp, and A connecting rod is fixedly connected between the wiring member and the opposite inner surface of the movable pliers. 4. The circuit breaker contact resistance testing wiring tool according to claim 1, characterized in that: the bottom end of the pliers head is a joint, and the fixing structure includes a plurality of protruding teeth and an opening arranged on the joint The plurality of protruding teeth are arranged at intervals along the circumferential direction of the joint on one end surface of the joint, and the opening is provided on the side of the joint and passes through the center of the joint. 5. The wiring tool for testing contact resistance of a circuit breaker according to claim 3, wherein the current terminal and the voltage terminal are respectively arranged at the other end of the wiring member and form a V shape. 6. The circuit breaker contact resistance testing wiring tool according to claim 1, characterized in that: the other end of the movable pliers is provided with a thread, and the side of the hanging ring is provided with a threaded hole, and the threaded hole is connected to the movable pliers. The threads at the other end of the pliers are screwed together, so that the hanging ring is fixedly connected to the other end of the movable pliers. 7 . The circuit breaker contact resistance testing wiring tool according to claim 1 , wherein the movable pliers are hinged to the supporting member by a hinge shaft. 8 . 8 . The circuit breaker contact resistance testing wiring tool according to claim 3 , wherein a spring is further connected between the fixing clamp and the connecting rod.