CN102916315A - Incorrect-operation-prevented electric power grounding wire - Google Patents

Abstract

An anti-misoperation power grounding wire is used to realize the safety protection of workers during power grid construction or maintenance. The tool is composed of a fixed platen, a movable platen, a locking unit and an adjusting bolt. The fixed platen is a rectangular frame structure with one side open, and the movable platen is located in the frame of the fixed platen. It includes the movable platen I, the movable platen II and The square mortise rivet runs through the two, and a cavity structure is provided between the movable platen I and the movable platen II, and the locking unit is arranged in the cavity structure, and the adjusting bolt and the frame of the fixed platen are connected by Assembled by screw fit, the end of the adjusting bolt is connected with the square mortise and rivet. The invention effectively solves the problem that the grounding wire used in the production operation site of the existing electric power system is not operated according to the regulations, and eliminates safety hazards such as electric shock and high fall of operating personnel.

Description

An anti-misoperation power grounding wire

technical field

The invention relates to a power grounding wire, in particular to a grounding wire with the function of enforcing the safety operation rules of the power grounding wire, and belongs to the technical field of basic electrical components.

Background technique

The grounding wire is a special tool to ensure the personal safety of the operator during the construction or maintenance of the power grid. According to the requirements of the electrical safety work regulations, the grounding wire should be connected to the grounding end first, and then the wire end; when removing the grounding wire, the wire end should be removed first. , and then remove the ground terminal. At present, there are many potential safety hazards in the use of grounding wires, and incidents of personal injury occur from time to time because the staff do not hang and remove the grounding wires according to the operating procedures. In order to solve the above problems, a safety ground wire with the function of enforcing the safety operation rules of the power ground wire came into being. The order does not limit the measures, and there are still unsafe factors.

Contents of the invention

The object of the present invention is to aim at the drawbacks of the prior art, and provide a misoperation-preventing power grounding wire with simple structure, strong practicability, and the ability to comprehensively standardize the operation sequence of workers.

Problem described in the present invention is realized with following technical scheme:

An anti-misoperation power grounding wire, which includes a grounding fixture, a wire terminal clamp, a ring chain bayonet assembly and a copper stranded wire, and the grounding fixture is composed of a fixed pressure plate, a movable pressure plate, a locking unit and an adjusting bolt , the fixed platen is a rectangular frame structure with one side open, the movable platen is located in the frame of the fixed platen, it includes the movable platen I, the movable platen II and the square tenon rivet running through the two, the movable platen I There is a cavity structure between the movable platen II, the locking unit is arranged in the cavity structure, the adjusting bolt is threadedly assembled with the frame of the fixed platen, and the end of the adjusting bolt is connected with a square tenon rivet.

The above-mentioned anti-misoperation power grounding wire, the locking unit includes a ratchet, a pawl pick, a compression spring and a locking pin, the ratchet is fitted with a square rivet, and the ratchet pick is fixed on the movable On the pressure plate II, the ratchet wheel and the pawl paddle form a one-way transmission mechanism. One end of the pawl paddle is provided with the matching surface of the ring chain bayonet assembly, and the other end is provided with a compression spring matching surface. The compression spring is horizontally arranged on the movable pressure plate. Between I and the movable pressing plate II, the locking pin is a stepped pin shaft, the small diameter end of which passes through the movable pressing plate II vertically, and it is matched with the ring chain bayonet assembly.

For the above-mentioned anti-misoperation electric power grounding wire, the wire end clamp is a duckbill-shaped clamp, and a ring chain bayonet assembly is fixedly installed on its side, and the ring chain bayonet assembly includes a ring chain and a bayonet pin. The front end collar is connected with the chain, and a card slot matching the locking unit is provided at the end of the bayonet pin.

For the above-mentioned anti-misoperation power grounding wire, the copper stranded wire is connected between the grounding clamp and the wire terminal clamp.

When the present invention is in a non-working state, the bayonet pin of the ring chain bayonet assembly is inserted into the cavity structure between the movable pressure plate I and the movable pressure plate II, and the bayonet groove at the tail of the bayonet pin is locked by the large-diameter end of the locking pin, so that the wire The end clip is connected with the grounding fixture; when the grounding wire needs to be hooked, the operator must first install the grounding fixture at the operating point, so that the locking pin passing through the movable pressure plate Ⅱ is lifted up, and the locking pin is large. The diameter end is disengaged from the slot of the bayonet pin, and the locking state of the bayonet pin is released. The compression spring horizontally arranged between the movable pressure plate I and the movable pressure plate II pushes the plectrum to rotate around the hinge shaft, and the bayonet pin connected to the wire end clip At this time, under the elastic force of the compressed spring, the ratchet pick and the ratchet cooperate to form a one-way transmission mechanism, so that the grounding clamp can only be tightened, and then the wire terminal clip is installed; when the grounding wire is removed, first pass The operating rod removes the clamp of the wire end, and then inserts the bayonet pin into the cavity structure between the movable pressure plate I and the movable pressure plate II, and the ratchet pick is driven by the tail end of the bayonet pin to rotate around the hinge axis, and the large diameter end of the locking pin is in contact with the bayonet. The card slot of the pin is matched to lock the pin, and at the same time, the pawl pick is disengaged from the ratchet wheel, and the locking state of the adjusting bolt is released. The clip is reliably connected with the ground terminal fixture, which is more convenient for carrying the ground wire. The invention is suitable for the construction and maintenance of equipment with a voltage level of 220kV and below. With its unique structure, it regulates the operation sequence of operators and effectively solves the problem that the grounding wire used in the production and operation site of the existing power system does not operate according to the regulations. , Eliminate safety hazards such as electric shock and high fall for operators.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is the structural representation under the non-working state of the present invention;

Fig. 2 is a schematic structural view of the grounding fixture of the present invention in a non-working state;

Fig. 3 is A-A sectional structure diagram among Fig. 2;

Fig. 4 is a structural schematic diagram of the present invention after the ground clamp is installed at the operating point;

Fig. 5 is a schematic structural view of the ground clamp of the present invention in working condition;

Fig. 6 is the B-B sectional structure in Fig. 5 .

The labels in the figure are: 1. Ground clamp, 1-1, Operating lever, 1-2, Adjusting bolt, 1-3, Fixed pressure plate, 1-4, Movable pressure plate I, 1-5, Movable pressure plate II, 1-6, ratchet, 1-7, pawl pick, 1-8, locking pin, 1-9, compression spring, 1-10, hinged shaft, 1-11, square tenon rivet, 2, wire end clip , 3, ring chain and bayonet components, 4, copper stranded wire, 5, ground wire.

Detailed ways

Referring to Fig. 1, Fig. 2 and Fig. 3, the present invention includes a grounding end fixture 1, a wire end clip 2, a ring chain detent assembly 3 and a copper strand 4, and the grounding end fixture 1 is composed of a fixed pressure plate 1-3, The movable pressing plate, the locking unit and the adjusting bolt 1-2 are composed, the fixed pressing plate 1-3 is a rectangular frame structure with one side open, and the movable pressing plate is located in the frame of the fixed pressing plate, which includes the movable pressing plate I1-4, the movable pressing plate The pressing plate II1-5 and the square tenon rivet 1-11 running through the two, a cavity structure is provided between the movable pressing plate I1-4 and the movable pressing plate II1-5, and the locking unit is arranged in the cavity structure Among them, the adjustment bolt 1-2 is assembled with the frame of the fixed platen in a threaded manner, and the end of the adjustment bolt 1-2 is connected with the square tenon rivet 1-11; the locking unit includes a ratchet 1-6, a pawl dial Plate 1-7, compression spring 1-9 and locking pin 1-8, the ratchet 1-6 is fitted with a square tenon rivet 1-11, and the ratchet paddle 1-7 is fixed by a hinge shaft 1-10 On the movable platen Ⅱ 1-5, the ratchet 1-6 and the pawl paddle 1-7 form a one-way transmission mechanism. One end of the pawl paddle 1-7 is provided with the mating surface of the ring chain bayonet assembly, and the other end is provided with a compression On the spring mating surface, the compression spring 1-9 is horizontally arranged between the movable pressure plate I1-4 and the movable pressure plate II1-5, and the locking pin 1-8 is a stepped pin shaft, and its small diameter end passes through the movable pressure plate vertically Ⅱ1-5, it matches with the chain bayonet assembly.

Referring to Fig. 1, Fig. 4, Fig. 5 and Fig. 6, the wire terminal clip 2 of the present invention is a duckbill-shaped clip, and a ring chain detent assembly 3 is fixedly installed on its side, and the ring chain detent assembly 3 includes a ring The chain and the bayonet pin 3-1, the bayonet pin 3-1 is connected with the ring chain through the collar at the front end, and a bayonet slot matching the locking unit is provided at the tail of the bayonet pin 3-1.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, and Fig. 6, the present invention is applicable to the construction and maintenance of equipment with a voltage level of 220kV and below. The pin 3-1 is inserted into the cavity structure between the movable pressure plate Ⅰ1-4 and the movable pressure plate II 1-5, and the slot at the tail of the bayonet pin 3-1 is locked by the large diameter end of the locking pin 1-8, so that the wire end clip 2. Connect with the grounding fixture 1; when the grounding wire needs to be hooked up, the operator must first connect the grounding fixture 1 to the ground wire 5 at the operating point reliably, and then pass through the locking of the movable pressure plate Ⅱ1-5 Pin 1-8 is jacked up, the large-diameter end of the locking pin is disengaged from the slot of the bayonet pin, and the locking state of bayonet pin 3-1 is released, and it is horizontally arranged between the movable pressure plate I1-4 and the movable pressure plate II1-5 The compression spring 1-9 pushes the pawl plectrum 1-7 to rotate around the hinge shaft 1-10, and the bayonet pin 3-1 connected to the wire end clip 2 is taken out. At this time, the pawl is under the elastic force of the compression spring 1-9. The paddles 1-7 cooperate with the ratchets 1-6 to form a one-way transmission mechanism, so that the clamp 1 of the ground terminal can only be tightened and cannot be loosened, and then the clamp 2 of the wire terminal is installed; Remove the clip 2 of the wire end, then insert the bayonet pin 3-1 into the cavity structure between the movable pressure plate I1-4 and the movable pressure plate II1-5, push the ratchet paddle 1-7 around by the tail end of the bayonet pin 3-1 When the hinged shaft 1-10 rotates, the large diameter end of the locking pin cooperates with the slot of the bayonet pin to lock the bayonet pin 3-1, at the same time disengage the ratchet pick 1-7 from the ratchet 1-6, and release the adjusting bolt 1-2 in the locked state, and then move the movable platen by turning the operating lever 1-1, the grounding clamp 1 is removed, and the wire terminal clamp 2 is reliably connected with the grounding clamp 1, which is more convenient for the grounding wire carry.

Claims (4)

1. anti-misoperation electricity earthing cable, it is characterized in that, it comprises earth terminal jig (1), conductor wire end clamp (2), loop chain retaining pin module (3) and copper stranded conductor (4), described earth terminal jig (1) is by fixation clip (1-3), movable pressing board, locking unit and adjusting bolt (1-2) consist of, described fixation clip (1-3) is the open rectangular frame structure of a side, described movable pressing board is arranged in the framework of fixation clip, it comprises movable pressing board I (1-4), movable pressing board II (1-5) and run through between the two square tenon rivet (1-11), be provided with cavity structure between described movable pressing board I (1-4) and the movable pressing board II (1-5), described locking unit is arranged in this cavity structure, described adjusting bolt (1-2) is assembled with thread fiting mode with the fixation clip upper side frame, and the end of adjusting bolt (1-2) is connected with square tenon rivet (1-11).

2. a kind of anti-misoperation electricity earthing cable according to claim 1, it is characterized in that, described locking unit comprises ratchet (1-6), ratchet plectrum (1-7), Compress Spring (1-9) and lock pin (1-8), described ratchet (1-6) is equipped with square tenon rivet (1-11), described ratchet plectrum (1-7) is fixed on above the movable pressing board II (1-5) by jointed shaft (1-10), ratchet (1-6) forms one-way driving mechanism with ratchet plectrum (1-7), one end of ratchet plectrum (1-7) is provided with loop chain retaining pin module mating surface, the other end is provided with the Compress Spring mating surface, described Compress Spring (1-9) horizontal arrangement is between movable pressing board I (1-4) and movable pressing board II (1-5), described lock pin (1-8) is the ladder bearing pin, its smaller diameter end is vertically passed movable pressing board II (1-5), and it and loop chain retaining pin module mate.

3. a kind of anti-misoperation electricity earthing cable according to claim 2, it is characterized in that, described conductor wire end clamp (2) is the Duckbill type wire clamp, at its side fixed installation loop chain retaining pin module (3), described loop chain retaining pin module (3) comprises loop chain and bayonet lock (3-1), described bayonet lock (3-1) is connected with loop chain by the front end collar, is provided with the draw-in groove that mates with locking unit at bayonet lock (3-1) afterbody.

4. a kind of anti-misoperation electricity earthing cable according to claim 3 is characterized in that, described copper stranded conductor (4) is connected between earth terminal jig (1) and the conductor wire end clamp (2).

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