Fuse type disconnecting switch safety locking device

Abstract

The utility model discloses a safety locking device for a fuse type disconnecting switch. The safety locking device comprises an insulating hanging rod, a cross bar and a lockset, a buckle is arranged at one end of the insulating hanging rod; the insulating hanging rod is provided with a plurality of through holes arranged at intervals. Mounting holes matched with the peripheries of the insulating hanging rods are formed in the cross bars, and the insulating hanging rods are inserted into the mounting holes in a sliding manner; the buckle is positioned on one side of the cross bar; the lockset is arranged on the other side of the cross bar; and the hook lock is hooked on one of the through holes of the insulating hanging rod. According to the utility model, a fuse type knife switch can be locked, false touch is avoided, and the problem that safety opening, power failure, locking and plate hanging cannot be carried out in the maintenance and repair process of equipment controlled by a fuse disconnecting switch is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit safety maintenance, in particular to a safety lock device for a fuse type isolating switch. Background Art

[0002] The fuse knife switch on the circuit plays the role of closing the loop in the control circuit. At present, the fuses on the market are all standard parts, which are widely used in nuclear power plants, large factories, ships and other places. The fuse knife switches generally used are installed in the control box together with the control switch components of other electrical circuits for easy operation control. When personnel operate other control components or perform other maintenance operations, due to collision or other reasons, it is easy to accidentally touch the fuse knife switch, causing it to be placed in the opposite working state, which is easy to cause major accidents. Therefore, before the maintenance and overhaul of electrical equipment begins, safety measures must be implemented, and power outage, power testing, locking, and tagging are the first step in implementing safety matters. Among them, locking is to use a lock to fix the knife switch so that it cannot be closed to avoid accidentally touching the fuse knife switch. Since the fuse-type disconnector is a standard part, its knife switch has no lockable position, so the series of operation processes of locking and tagging after power failure cannot be carried out normally according to safety requirements. The only way is to symbolically hang locks and tag labels on the knife switch, but this is undoubtedly useless; another safety protection operation method is to directly remove the closing mechanism, which is too cumbersome; both methods have great safety hazards and cannot fundamentally avoid the risk of misoperation. Therefore, it is necessary to design a safety lock device for fuse-type disconnector. Summary of the invention

[0003] The utility model provides a fuse type isolating switch safety lock device, which can lock the knife switch of the fuse to avoid accidental triggering, solves the problem that the equipment controlled by the fuse isolating switch cannot be safely disconnected, powered off, locked, and labeled during maintenance and overhaul, provides safety guarantee for maintenance personnel during equipment maintenance and overhaul, eliminates illegal operations, and ensures safe production.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A safety lock device for a fuse-type disconnector comprises an insulating hanging rod, a horizontal bar and a lock; a buckle is provided at one end of the insulating hanging rod; a plurality of through holes are provided on the insulating hanging rod at intervals; a mounting hole matching the outer circumference of the insulating hanging rod is opened on the horizontal bar, and the insulating hanging rod is slidably inserted in the mounting hole; the buckle is located on one side of the horizontal bar; the lock is located on the other side of the horizontal bar; and the hook is locked on one of the through holes of the insulating hanging rod.

[0006] Furthermore, the insulating hanging rod is a rectangular parallelepiped structure.

[0007] Furthermore, the buckle is configured as a T-shaped structure, and the T-shaped vertical end of the buckle is fixedly connected to the insulating hanging rod.

[0008] Furthermore, a plurality of the through holes are arranged parallel to the T-shaped horizontal end direction of the buckle.

[0009] Furthermore, the buckle and the insulating hanging rod are integrally formed.

[0010] Furthermore, the horizontal bar is in a T-shaped structure, and the mounting hole is arranged through the T-shaped vertical end of the horizontal bar.

[0011] Furthermore, the lock is located on one side of the T-shaped vertical end of the horizontal bar.

[0012] The beneficial effects of the utility model are:

[0013] 1) When the utility model is used, the buckle of the insulating hanging rod is vertically extended into the cut-in port of the fuse-type isolating switch, and rotated 90°, and the insulating hanging rod is pulled outward so that the two sides of the T-shaped horizontal end of the buckle are buckled on the plastic part of the fuse cut-in port, and the insulating hanging rod is passed through the horizontal bar, and the horizontal bar is placed at the bottom to press the cut-in port of the fuse-type isolating switch, and the lock is hung on the insulating hanging rod at the position where the appropriate installation hole is exposed, and the lock is locked, and the key is taken away, and finally the safety indication sign is hung; through the cooperation of the insulating hanging rod and the horizontal bar, the knife switch of the fuse can be locked to avoid accidental triggering, thereby solving the problem that the equipment controlled by the fuse isolating switch cannot be safely opened, powered off, locked, and hung during maintenance and overhaul.

[0014] 2) Choose a rectangular insulating hanging rod with a square mounting hole. After locking it with a lock, the insulating hanging rod cannot be rotated or removed, preventing the buckle from detaching from the inlet of the fuse-type disconnector. This can ensure that the closing mechanism of the fuse disconnector is blocked by the device and cannot be closed, and there is no need to remove the closing mechanism.

[0015] 3) The distance between the through hole and the buckle is designed according to the distance between the incision and the outer side of the plastic part. A plurality of through holes are provided to adapt to different types of fuse-type disconnectors.

[0016] 4) The horizontal bar is designed to be a T-shaped structure, with the middle part protruding, so that the position of the connecting lock is moved back to make more space for easy locking operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 It is an exploded view of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the horizontal bar in the utility model;

[0022] Figure ID:

[0023] 1-insulating hanging rod, 2-horizontal bar, 3-lock, 11-clip, 12-through hole, 21-mounting hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is referred to as being "set in the middle", it does not only mean being set in the middle, as long as it is not set at both ends within the range defined by the middle. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] Reference Figures 1 to 4As shown, a safety lock device for a fuse-type disconnector includes an insulating hanging rod 1, a horizontal bar 2 and a lock 3; the insulating hanging rod 1 is a rectangular parallelepiped structure, and a buckle 11 is provided at one end of the insulating hanging rod 1. The buckle 11 is set as a T-shaped structure, and the T-shaped vertical end of the buckle 11 is fixedly connected to the insulating hanging rod 1. In actual processing, polyurethane can be selected to process the buckle 11 and the insulating hanging rod 1 into an integral shape; the insulating hanging rod 1 is provided with a plurality of through holes 12 arranged at intervals, and the plurality of through holes 12 are arranged parallel to the T-shaped horizontal end direction of the buckle 11. The horizontal bar 2 is a T-shaped structure, and a mounting hole 21 matching the outer periphery of the insulating hanging rod 1 is opened on the horizontal bar 2, and the mounting hole 21 is arranged along the T-shaped vertical end of the horizontal bar 2. The insulating hanging rod 1 is slidably inserted into the mounting hole 21; the buckle 11 is located on one side of the T-shaped horizontal end of the horizontal bar 2; the lock 3 is located on one side of the T-shaped vertical end of the horizontal bar, and is hooked and locked on one of the through holes 12 of the insulating hanging rod 1. The buckle of the insulating hanging rod 1 is vertically extended into the inlet of the fuse-type disconnector and rotated 90°; the insulating hanging rod is pulled outward so that the two sides of the T-shaped horizontal ends of the buckle are buckled on the plastic parts of the fuse inlet, the insulating hanging rod is passed through the horizontal bar 2, and the horizontal bar 2 is placed at the bottom to press the inlet of the fuse-type disconnector, and the lock 3 is hung on the insulating hanging rod 1 at a suitable installation hole position, locked, and the key is taken away, and finally a safety indication sign is hung; through the cooperation of the insulating hanging rod 1 and the horizontal bar 2, the knife switch of the fuse can be locked to avoid accidental triggering, thereby solving the problem that the equipment controlled by the fuse disconnector cannot be safely disconnected, powered off, locked, and hung during maintenance and overhaul. A rectangular insulating hanging rod 1 is selected to match the square mounting hole 21. After being locked with the lock 3, the insulating hanging rod 1 cannot be rotated or removed, so as to prevent the buckle 11 from being separated from the inlet of the fuse-type disconnector. This can ensure that the closing mechanism of the fuse-type disconnector is blocked by the device and cannot be closed, and there is no need to remove the closing mechanism. The distance between the through hole 12 and the buckle 11 is designed according to the actual distance between the inlet and the outside of the plastic part. A plurality of through holes 12 are provided to adapt to different models of fuse-type disconnectors. The horizontal bar 2 is designed to be a T-shaped structure so that the middle part protrudes, so that the position of the connecting lock 3 is moved up, leaving more space for easy locking operation.

[0028] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. A safety lock device for a fuse-type isolating switch, characterized in that: It comprises an insulating hanging rod, a horizontal bar and a lock; a buckle is provided at one end of the insulating hanging rod, the buckle is set as a T-shaped structure, and the T-shaped vertical end of the buckle is fixedly connected to the insulating hanging rod; a plurality of through holes arranged at intervals are provided on the insulating hanging rod; a mounting hole matching the outer circumference of the insulating hanging rod is opened on the horizontal bar, and the insulating hanging rod is slidably inserted into the mounting hole; the buckle is located on one side of the horizontal bar; the lock is arranged on the other side of the horizontal bar; and the hook is locked on one of the through holes of the insulating hanging rod.

2. A safety lock device for a fuse-type isolating switch according to claim 1, characterized in that: The insulating hanging rod is a rectangular parallelepiped structure.

3. A safety lock device for a fuse-type isolating switch according to claim 2, characterized in that: A plurality of through holes are arranged parallel to the T-shaped horizontal end direction of the buckle.

4. A safety lock device for a fuse-type isolating switch according to claim 3, characterized in that: The buckle and the insulating hanging rod are integrally formed.

5. A safety lock device for a fuse-type isolating switch according to claim 1, characterized in that: The horizontal bar is in a T-shaped structure, and the mounting hole is arranged through the T-shaped vertical end of the horizontal bar.

6. A safety lock device for a fuse-type isolating switch according to claim 5, characterized in that: The lock is located at one side of the T-shaped vertical end of the horizontal bar.

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