CN2116971U

CN2116971U - Portable spring terrestrial clip

Info

Publication number: CN2116971U
Application number: CN 91229769
Authority: CN
Inventors: 申继光
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-30
Filing date: 1991-11-30
Publication date: 1992-09-23

Abstract

The utility model provides a novel portable earth wire clamp, comprising a clamp body and an earth wire connector. The utility model is characterized in that the clamp body is in a hook shape; a movable wire pressing spatula and a spring are arranged in the hook; the lower end of the clamp body is provided with an inserting interface. When used, the utility model is respectively connected with an earth wire and an insulating bar; workers can rapidly hang the earth wire in the earth. The utility model which has the advantages of convenient operation, large area of electric contact of hanging position, steady elastic press and connection, no falling off, good versatility, small volume, portability, and simple structure is suitable for wire-shaped or plate-shaped conductors and is not easy to damage.

Description

Portable spring terrestrial clip

The utility model relates to the wire clamp of portable grounding wires, is particularly suitable for the power plant and uses during for the maintenance of, electricity consumption department.

Portable grounding wires is one of electrician's security apparatus commonly used, it is made of wire clamp and earth connection and earth electrode, wire clamp is its critical component, wire clamp is at the widely used spring handle type of electric power system wire clamp preferably at present, the effect of portable grounding wires is when the maintenance and repair electric power system, power line and the earth are coupled together temporarily, prevent that the power circuit that has had a power failure from sending a telegram here suddenly, protection maintenance personal's personal safety, therefore, requiring should have fabulous electric interface between wire clamp and mains side lead or the aluminium sheet, to reduce the huge short-circuit current rush that forms when contact resistance also can bear short circuit; In addition, its also be used to release induced electricity of adjacent electrified body and the electric energy that electric capacity or inductance etc. store in the power circuit requires it to be connected with the power line of band induced electricity or store charge easily by the utmost point equally, and bears the impact of discharging current.In long-term actual use, it is found that existing portable grounding wires wire clamp has the following disadvantages.(1) operation is extremely inconvenient, and it is long that the earth connection time is hung and dismantled to dress.Because the most spring handle types that adopt of existing portable grounding wires, need staff to remove and press handle to make wire clamp open the ability hanging earthing conductor, therefore, when the liftoff higher earth connection of installing, the dress that the workman must use stair or the instrument of ascending a height repeatedly up and down reciprocatingly just can be finished many windings ground wire is hung operation, operation is extremely inconvenient, if when on electric line, installing, the workman will use the instrument of ascending a height to arrive the place of the fast contact wire of masthead, just can finish the work of dress hanging earthing conductor, so not only dangerous but also time that cost is grown.(2) it is not firm to articulate a contact, comes off easily.Most wire clamps are to lean on movable line ball aluminium sheet under the effect of spring force, move up and down lead is clamped, if the elastic force of spring is excessive, the workman can not open wire clamp, if elastic force is too small, then wire clamp can not clamp lead, articulates a loose contact, does not have security personnel's effect of security apparatus, do not meet the rules regulation, in addition, in use, lead also comes off from the opening part of wire clamp side easily.(3) carry inconvenience, receive and pick up difficulty.Its volume is grown up, and lopwood is hung many, ties up and untie difficulty.(4) complex structure, the production cost height, fragile.The structure of existing spring handle type wire clamp is, wire clip body is fixedlyed connected with insulating bar one end, the insulating bar other end is fixedly connected with wire clamp folding handle, movable line ball aluminium sheet is connected with wire clamp folding handle by the transmission mechanism in the insulating bar, its drive disk assembly is many, and complex structure has increased production cost, be damaged maintenance difficult in actual use again easily.(5) specification is many, and versatility is poor.Because the problems referred to above long-term existence, so the workman of the transformer and distribution station of electric power system and industrial and mining enterprises, all urgent hope is reformed the wire clamp of portable grounding wires.

The purpose of this utility model provides improved portable elastic force earth connection wire clamp and solves the problems referred to above, and it is simple in structure, and is easy to use, and all the energy clamping connection is firm for lead and aluminium sheet, and electric interface is good, and stronger versatility is arranged, and is not easy to damage.

The purpose of this utility model is achieved through the following technical solutions.

Portable elastic force earth connection wire clamp described in the utility model, wire clip body is arranged, the earth connection connector is installed on wire clip body, be characterized in, wire clip body is a hook-shaped, installed inside at wire clip body hook B plate has movable line ball hyoplastron and hyoplastron compression spring, and the front end of movable line ball hyoplastron is connected for contact with wire clip body hook A plate, and the lower end of wire clip body has interface.

Portable elastic force earth connection wire clamp described in the utility model, technical scheme is preferably, and a bending is arranged between the top and bottom of movable line ball hyoplastron, and overbending direction is towards wire clip body hook B plate, and Wan Zhe shape helps wire clamp clamping wire or aluminium sheet like this.

The better technical scheme of portable elastic force earth connection wire clamp described in the utility model is that the front end of movable line ball hyoplastron is a convex shape, is embedded in the groove at wire clip body hook top, can prevent movable line ball hyoplastron move left and right.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 portable elastic force earth connection wire clamp schematic diagram

Fig. 2 portable elastic force earth connection wire clamp and insulating bar connection diagram

The elastic force of portable shown in Fig. 1-2 earth connection wire clamp is a specific embodiment of the utility model, it adopts aluminium alloy (also can select copper for use, copper alloy or other conduction good metal material) make, wire clip body 1 is arranged, earth connection connector 2 is installed on wire clip body 1, wire clip body 1 is a hook-shaped, installed inside at wire clip body hook B plate has movable line ball hyoplastron 3 and hyoplastron compression spring 4, between the top and bottom of movable line ball hyoplastron 3 bending is arranged, overbending direction is towards wire clip body hook B plate, the elastic force of hyoplastron compression spring bears down on one on wire clip body hook A plate the front end of movable line ball hyoplastron 3, and the lower end of wire clip body is tubulose and has interface 5.When using it, earth connection is connected with earth connection connector 2 on the wire clip body 1, and just can connect for use after rotating slightly in the ferrule insertion interface 5 with insulating bar (link rod), the workman is suspended to the wire clamp dress on the power lead with regard to hand-holdable insulating bar on ground, when exerting oneself downwards, movable line ball hyoplastron is stressed to be opened automatically, no longer mobile after moving on to wire clip body hook top on the power lead, movable line ball hyoplastron is pressed on power lead in the wire clamp under the effect of spring force, thereby it is fast that ground wire hitching is good, during dismounting, only need upwards firmly, just wire clamp can be taken off from power lead.The front end of movable line ball hyoplastron 3 can be made into convex shape, is embedded in the groove 6 at wire clip body hook top, can prevent movable line ball hyoplastron 3 move left and right.

Adopt the advantage of Portable spring terrestrial clip described in the utility model to be: (1) operation is very convenient, and dress is hung and the dismounting earth connection time shortens greatly, is used with insulating bar, not only safety but also quick. (2) the hitching position electrical-contact area is big, and press connecting is firm, and contact resistance is little, can bear the impact of Short-Circuit High Current, and in use lead can not come off from opening part, can play the safeguard protection effect. (3) volume is little, and is easy to carry, collects easily. (4) simple in structure, the mechanical strength height, not fragile, easy to maintenance. (5) versatility is good, can be adapted at using on the various electric lines, also is adapted at using on the switchboard conductor plate. (6) production cost reduces greatly, and excellent performance is the renewal product of existing portable grounding wires wire clamp. Must bring into play due effect for the electrician's of the transformer and distribution station of protecting vast power system and industrial and mining enterprises personal safety.

Claims

1, portable elastic force earth connection wire clamp, wire clip body [1] is arranged, earth connection connector [2] is installed on wire clip body [1], it is characterized in that, wire clip body [1] is a hook-shaped, installed inside at wire clip body hook B plate has movable line ball hyoplastron [3] and hyoplastron compression spring [4], and the front end of movable line ball hyoplastron [3] is connected for contact with wire clip body hook A plate, and the lower end of wire clip body [1] has interface [5].

2, portable elastic force earth connection wire clamp according to claim 1 is characterized in that between the top and bottom of movable line ball hyoplastron ［ 3 ］ bending being arranged, and overbending direction is towards wire clip body hook B plate.

3, portable elastic force earth connection wire clamp according to claim 1 and 2 is characterized in that the front end of movable line ball hyoplastron is a convex shape, is embedded in the groove ［ 6 ］ at wire clip body hook top.