CN103247879B - Ground lead pothook with anti-misoperation mechanism - Google Patents

Abstract

The invention discloses a ground wire hook with an anti-misoperation mechanism, which solves the problem that an accident with ground wire closing occurs due to forgetting to remove the ground wire hook when the substation is switched on. Including that the left spring card (9) and the right spring card (8) are respectively arranged in the ground wire hook elbow (1), and the limit pin through hole (2) is set on the ground wire hook elbow (1). A limit pin (3) is movable in the through hole (2) of the limit pin, and the left end of the limit pin (3) is connected with the movable top of the right spring card (8), and a lock is arranged on the right end of the limit pin (3). Hole (5), on the bottom surface of the middle part of the limit pin (3), set the limit pin tab (4), between the top surface of the limit pin (3) and the inner surface of the ground wire hook elbow (1) A limit clip (7) is provided, and a five-proof lock (6) is arranged in the lock hole (5). The correctness of switching operation is improved, and the occurrence of misoperation accidents is prevented.

Description

Ground wire hook with anti-misoperation mechanism

technical field

The present invention relates to a grounding wire hook used in the maintenance of power transmission lines, in particular to a grounding wire hook used in the switching operation of a transformer.

Background technique

In the switching operation of the substation, the ground wire hook should be used to ground the wire to ensure the smooth progress of related work. However, after the switching operation of the substation, due to various reasons, it is often forgotten to remove the remaining grounding wire, resulting in misoperation of power transmission in the substation and causing accidents. Among the misoperation accidents over the years, the ground wire left on site, and the accident with the ground wire closing accounted for the largest proportion of accidents. How to facilitate the operation of the operator and prevent the occurrence of such accidents is a difficult problem to solve.

Contents of the invention

The invention provides a ground wire hook with an anti-misoperation mechanism, which completely solves the problem of accidents caused by forgetting to remove the ground wire hook when the substation is closed.

The present invention solves the above technical problems through the following technical solutions:

A grounding wire hook with an anti-misoperation mechanism, including a grounding wire hook elbow, a left spring card and a right spring card are respectively arranged in the grounding wire hook elbow, and a limit pin through hole is arranged on the grounding wire hook elbow , a limit pin is movable in the through hole of the limit pin, the left end of the limit pin is connected with the right spring card, and a lock hole is arranged at the right end of the limit pin, and the right end of the limit pin passes through the limit pin. After passing through the hole, set it on the outside of the ground wire hook elbow, set the limit pin tab on the bottom surface of the middle part of the limit pin, and set the limit pin between the top surface of the limit pin and the inner surface of the ground wire hook elbow. Stage clip is provided with five anti-locks in the lockhole.

The ground wire hook elbow and the power transmission wire are movably connected together.

Through the combination of the five-proof lock and the grounding wire hook, the present invention solves the problem of the grounding wire left on the site when the substation operators perform switching operations, further improves the correctness of the switching operation, and prevents the occurrence of misoperation accidents.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural view of the present invention after the five-proof lock is opened.

Detailed ways

A grounding wire hook with an anti-misoperation mechanism, including a grounding wire hook elbow 1, a left spring card 9 and a right spring card 8 are respectively arranged in the grounding wire hook elbow 1, and a grounding wire hook elbow 1 is provided The limit pin through hole 2, the limit pin 3 is movable in the limit pin through hole 2, the left end of the limit pin 3 is connected with the right spring card 8, and a lock hole is arranged at the right end of the limit pin 3 5. The right end of the limit pin 3 passes through the through hole 2 of the limit pin and is set on the outside of the ground wire hook elbow 1, and the limit pin tab 4 is set on the bottom surface of the middle part of the limit pin 3. A limit compression spring 7 is arranged between the top surface of the 3 and the inner surface of the ground wire hook elbow 1, and a five-proof lock 6 is arranged in the lock hole 5.

The grounding wire hook elbow 1 and the power transmission wire are movably connected together.

In the operation of the substation, it is necessary to follow the safe operating procedures. For this reason, five-proof locks are used to perform the following five defenses: anti-mistaken opening and closing of the switch, anti-loaded opening and closing of the knife switch, anti-closing of the ground wire, and anti-charged hanging Grounding wire and anti-intrusion live spacer. Install limit pins and limit springs on the hook head of the grounding wire, and connect the five-proof lock of the grounding pile to the grounding wire head, and control the operation of the ground wire through the cooperation of the limit pin and the five-proof lock, effectively avoiding the need for operating personnel Misoperation accidents caused by missing the ground wire.

Claims (2)

1. A grounding wire hook with an anti-misoperation mechanism, including a grounding wire hook elbow (1), and a left spring card (9) and a right spring card (8) are respectively arranged in the grounding wire hook elbow (1) , characterized in that a limit pin through hole (2) is set on the ground wire hook elbow (1), a limit pin (3) is movably arranged in the limit pin through hole (2), and the limit pin (3) The left end and the right spring card (8) are movable together, and the right end of the limit pin (3) is provided with a lock hole (5), and the right end of the limit pin (3) is inserted from the limit pin through hole (2) After passing through, set it on the outside of the ground wire hook elbow (1), set the limit pin tab (4) on the bottom surface of the middle part of the limit pin (3), and hook the ground wire on the top surface of the limit pin (3) A limiting compression spring (7) is arranged between the inner surfaces of the elbow (1), and a five-proof lock (6) is arranged in the lock hole (5). 2. A ground wire hook with an anti-misoperation mechanism according to claim 1, characterized in that the elbow (1) of the ground wire hook and the power transmission wire are movably connected together.