CN216517358U

CN216517358U - Safety lock mechanism of switch cabinet

Info

Publication number: CN216517358U
Application number: CN202122887245.9U
Authority: CN
Inventors: 郑友鹏; 张阳明; 黄天祥
Original assignee: Xiamen Yiqiang Precision Machinery Co ltd
Current assignee: Xiamen Yiqiang Precision Machinery Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-13
Anticipated expiration: 2031-11-23

Abstract

The utility model provides a safety lock mechanism of a switch cabinet, which comprises a cabinet body, wherein a placing area and a working area are arranged in the cabinet body, a through hole for placing a circuit breaker is formed in a partition plate between the placing area and the working area, a connecting rod gate mechanism is arranged in the placing area, and the safety lock mechanism also comprises a locking rod; a cabinet door is arranged on the side face of the placing area opposite to the partition plate, and a mounting hole is formed in the cabinet door; the middle part of the locking rod is hinged on the inner side surface of the placing area. The cabinet door is closed after the circuit breaker is placed in the placement area, the short circuiter is pushed through the mounting hole, the circuit breaker is driven to be in contact with the connecting rod gate mechanism, and the circuit breaker is placed in the working area by opening the through hole. In the process of changing the cabinet, the locking rod can be linked with the connecting rod gate mechanism, so that the locking rod is locked on the cabinet door, the self-locking effect of the switch cabinet is achieved from the inside, the locking rod can continuously lock on the cabinet door under the condition that the circuit breaker is not taken out, the cabinet door cannot be opened, and the problem of preventing misoperation is solved.

Description

Safety lock mechanism of switch cabinet

Technical Field

The utility model relates to the field of switch cabinet structures, in particular to a safety lock mechanism of a switch cabinet.

Background

The main function of the switch gear is to open, close, control and protect the electric equipment in the process of generating, transmitting, distributing and converting electric energy of the power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The classification methods of the switch cabinets are various, for example, the switch cabinets can be divided into movable switch cabinets and fixed switch cabinets by the installation mode of the circuit breaker; or according to different cabinet body structures, the cabinet body can be divided into an open type switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; the high-voltage switch cabinet or the low-voltage switch cabinet can be further divided according to different voltage grades.

For example, a high-voltage switch breaker has a certain risk because it is connected to a high-voltage power circuit and there is a risk of electric shock during use. Therefore, a corresponding safe structure can be arranged in the switch cabinet for protection, and the use safety performance is improved.

Existing switch cabinets are provided with a gate mechanism for automatic switching in order to place a circuit breaker. However, the safety arrangement for preventing the misoperation still has disadvantages, if the error in information communication exists when the operation is carried out under the cooperation of more than two persons, the accident of unexpected misoperation is easy to occur, and the consequence caused by the error in the high-voltage equipment environment is not imaginable, so the safety design on the mechanical structure becomes the last protection lock for operators.

SUMMERY OF THE UTILITY MODEL

The utility model provides a safety lock mechanism of a switch cabinet, aiming at solving the problem that the structure of the existing switch cabinet for preventing misoperation is imperfect.

The utility model is realized by the following steps: a safety lock mechanism of a switch cabinet comprises a cabinet body, wherein a placing area and a working area are arranged in the cabinet body, a through hole for placing a circuit breaker is formed in a partition plate between the placing area and the working area, a connecting rod gate mechanism for opening or closing the through hole is arranged in the placing area, and the safety lock mechanism also comprises a locking rod; a cabinet door is arranged on the side face of the placing area opposite to the partition plate, and a mounting hole is formed in the cabinet door; the middle part of the locking rod is hinged on the inner side surface of the placing area, one end of the locking rod is propped against the connecting rod gate mechanism, and the other end of the locking rod and the cabinet door can be locked or separated;

when the connecting rod gate mechanism acts, the locking rod swings by taking a hinge point as a fulcrum.

Preferably, one end of the locking rod is provided with a first clamping point and a second clamping point, and the other end of the locking rod is provided with a slot;

when the connecting rod gate mechanism drives the locking rod to move from the first clamping point to the second clamping point, the slot of the locking rod is matched and locked with the cabinet door.

Preferably, an inclined plane, an arc surface or a stepped surface is arranged between the first clamping point and the second clamping point.

Preferably, a gate valve mechanism for opening or closing the mounting hole is provided at the mounting hole.

Preferably, the gate valve mechanism includes a safety lock and a shutter provided on the safety lock, the shutter being used to open or close the mounting hole.

Preferably, a sliding rail parallel to the locking rod is arranged in the placing area, and the sliding rail is used for placing the circuit breaker.

Preferably, the circuit breaker is provided with a push block, the push block is used for driving the connecting rod gate mechanism to open the through hole in the process that the circuit breaker is placed in the working area, and the other end of the locking rod performs locking action.

The utility model has the beneficial effects that:

1. in the process of placing the circuit breaker, place the circuit breaker in placing the district earlier, then close the cabinet door, utilize the mounting hole on the cabinet door, use a club propelling movement circuit breaker. In the process of pushing the short circuiter, the frame body on the circuit breaker can contact with the connecting rod gate mechanism and is linked, so that the connecting rod gate mechanism opens the through hole, the circuit breaker is smoothly placed in a working area, and the purpose of installing the circuit breaker in the switch cabinet is achieved. Meanwhile, the locking rod can be synchronously driven to swing when the connecting rod gate mechanism acts, the other end of the locking rod is locked on the cabinet door, the self-locking effect in the switch cabinet is achieved, the locking rod can be continuously locked on the cabinet door under the condition that the circuit breaker is not taken out, the cabinet door cannot be opened, the problem of misoperation prevention is solved, and the practicability is improved.

2. The locking rod can be well supported when being locked by setting the clamping point for positioning, the structural stability is improved, and when being impacted by destructiveness, the locking rod still effectively forms positioning and locking so as to improve the safety.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a safety lock mechanism of a switchgear according to an embodiment of the present invention;

FIG. 2 is a partial view of a safety lock mechanism of a switchgear cabinet according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a safety lock mechanism of a switchgear according to an embodiment of the present invention, in which a locking rod is separated;

FIG. 4 is a schematic structural diagram of a safety lock mechanism of a switchgear according to an embodiment of the present invention, in which a locking rod is in a locked state;

fig. 5 is a schematic structural view of a locking rod of a safety lock mechanism of a switch cabinet according to an embodiment of the utility model.

Reference numerals:

10. a cabinet body; 101. a placement area; 102. a working area; 103. a partition plate;

104. a drive rod; 105. a slide rail; 106. a push block;

1031. a through hole;

20. a locking bar; 201. a first stuck point; 202. a second stuck point; 203. a slot;

30. a cabinet door; 301. mounting holes; 302. a gate valve mechanism;

3021. a safety lock; 3022. and a baffle plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples of the following,

Referring to fig. 1 to 5, the present embodiment provides a safety lock 3021 mechanism of a switch cabinet, including a cabinet 10, a placing area 101 and a working area 102 are disposed in the cabinet 10, a through hole 1031 for placing a circuit breaker is disposed on a partition plate 103 between the placing area 101 and the working area 102, a link gate mechanism for opening or closing the through hole 1031 is disposed in the placing area 101, and further includes a locking rod 20; a cabinet door 30 is arranged on the side surface of the placing area 101 opposite to the partition plate 103, and a mounting hole 301 is formed in the cabinet door 30; the middle part of the locking rod 20 is hinged on the inner side surface of the placing area 101, one end of the locking rod 20 is propped against the connecting rod gate mechanism, and the other end of the locking rod 20 and the cabinet door 30 can be locked or separated; when the link gate mechanism operates, the locking lever 20 swings about the hinge point as a fulcrum.

In the process of placing the circuit breaker, place the circuit breaker in placing the district 101 earlier, then close cabinet door 30, utilize mounting hole 301 on the cabinet door 30, use a stick to carry out the propelling movement operation to the circuit breaker. In the process of pushing the short circuiter, the frame body on the circuit breaker contacts with the connecting rod gate mechanism and is linked, so that the connecting rod gate mechanism automatically opens the through hole 1031, the circuit breaker is smoothly placed in the working area 102, and the purpose of installing the circuit breaker in the switch cabinet is achieved.

The connecting rod gate mechanism can be a connecting rod mechanism and a corresponding gate, one end of the connecting rod mechanism is located in the placing area 101 and is in contact with the short-circuiting device, the connecting rod mechanism is driven to act, the gate is further driven to move, the through hole 1031 is exposed, and the effect of opening the through hole 1031 is achieved. Considering the gate as a slider, the connecting rod gate mechanism may be a connecting rod slider mechanism, which is a common technology in the art and will not be described in detail.

Meanwhile, still can hold in step the locking pole 20 and swing when connecting rod gate mechanism moves, when accomplishing to install the circuit breaker in workspace 102, also realize locking the other end closure of locking pole 20 on cabinet door 30, reach the effect to the cabinet door 30 auto-lock of cubical switchboard, under the condition that does not take out the circuit breaker, the closure that locking pole 20 can last is on cabinet door 30 for cabinet door 30 can't be opened, play the problem that prevents the maloperation, improve the practicality. When taking out the short circuit breaker in the workspace 102, the locking rod 20 resets and separates with the cabinet door 30 to realize the unblock, can open the cabinet door 30 this moment, will place the circuit breaker in the district 101 and take out, the effect of unblock when realizing taking out the circuit breaker.

As shown in fig. 5, in the present embodiment, one end of the locking rod 20 is provided with a first fastening point 201 and a second fastening point 202, and the other end of the locking rod 20 is provided with a slot 203; when the connecting rod gate mechanism drives the locking rod 20 to move from the first fastening point 201 to the second fastening point 202, the slot 203 of the locking rod 20 is locked with the cabinet door 30. The first clamping point 201 and the second clamping point 202 are set, the locking rod 20 and the connecting rod gate mechanism are positioned and matched, the locking rod 20 can be well supported when locked, structural stability is improved, and positioning and locking are still effectively formed when destructive impact is applied, so that safety is improved.

Further, as shown in fig. 5, in the present embodiment, a slope, a cambered surface, or a step surface is disposed between the first stuck point 201 and the second stuck point 202. The design of different transition surfaces can meet the action of the locking rod 20 during locking or separation, and the inclined surface realizes stable transition locking or separation under the matching condition of metal pieces, so that the locking is stable and has no noise; the cambered surface realizes the slow and fast locking or separation according to the change of the curvature, and can make relatively light sound; the stepped surface can be clamped in place in one step, and can make a sound, so that an external person can know that the locking rod 20 is locked.

As shown in fig. 1, in the present embodiment, a gate valve mechanism 302 for opening or closing the installation hole 301 is disposed at the installation hole 301, and the installation hole 301 can be protected by the gate valve mechanism 302, so that when the installation hole 301 is used, the gate valve mechanism 302 must be opened first to achieve the purpose of safe use.

Specifically, as shown in fig. 1 or fig. 3, the door valve mechanism 302 in the present embodiment includes a safety lock 3021 and a flap 3022 provided on the safety lock 3021, and the flap 3022 is used to open or close the mounting hole 301. The safety lock 3021 is unlocked by a key, the baffle 3022 is rotated to expose the mounting hole 301, and the circuit breaker is pushed to be placed or taken out through the mounting hole 301.

As shown in fig. 3 or fig. 4, in the embodiment, a sliding rail 105 parallel to the locking rod 20 is disposed in the placing area 101, and the sliding rail 105 is used for placing the circuit breaker. Through the use of slide rail 105, be convenient for carry out the propelling movement installation and take out the short circuiter, improve the practicality.

As shown in fig. 3 or fig. 4, the circuit breaker of the present embodiment is provided with a push block 106, the push block 106 is used for driving the link gate mechanism to open the through hole 1031 and the other end of the locking rod 20 to perform a locking action during the circuit breaker is placed in the working area 102. Specifically, the pushing block 106 is provided with a groove facing the side of the connecting rod gate mechanism, and the driving rod 104 of the connecting rod gate mechanism performs a rotary swing action, and the driving rod is provided with a convex shaft facing the pushing block 106, so that abdication can be formed, and the contact area between the pushing block 106 and the convex shaft can be increased. Therefore, when the design through the push block 106 is matched and linked with the connecting rod gate mechanism, the end face of the push block 106 is abutted against the protruding shaft, the top of the protruding shaft slides into the groove to form positioning in the continuous pushing process, the situation that the locking rod 20 is separated from the cabinet door 30 due to the resetting of the protruding shaft is avoided, and the purpose of opening the gate and putting the circuit breaker into the cabinet is achieved (after the circuit breaker is taken out, the gate falls, and the placing area 101 is separated from the working area 102). The design of the position is facilitated through the design of the push block 106 and the protruding shaft, and the flexibility and the practicability of matching are improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety lock mechanism of a switch cabinet comprises a cabinet body, wherein a placing area and a working area are arranged in the cabinet body, a through hole for placing a circuit breaker is arranged on a partition plate between the placing area and the working area, and a connecting rod gate mechanism for opening or closing the through hole is arranged in the placing area;

a cabinet door is arranged on the side face of the placing area opposite to the partition plate, and a mounting hole is formed in the cabinet door;

the middle part of the locking rod is hinged on the inner side surface of the placing area, one end of the locking rod is propped against the connecting rod gate mechanism, and the other end of the locking rod and the cabinet door can be locked or separated;

2. The switchgear security lock mechanism of claim 1, wherein: one end of the locking rod is provided with a first clamping point and a second clamping point, and the other end of the locking rod is provided with a slot;

3. The switchgear security lock mechanism of claim 2, wherein: an inclined plane, an arc surface or a step surface is arranged between the first clamping point and the second clamping point.

4. The switchgear security lock mechanism of claim 1, wherein: and a door valve mechanism for opening or closing the mounting hole is arranged at the mounting hole.

5. The switchgear security lock mechanism of claim 4, wherein: the gate valve mechanism comprises a safety lock and a baffle arranged on the safety lock, wherein the baffle is used for opening or closing the mounting hole.

6. The switchgear security lock mechanism of claim 1, wherein: the placing area is internally provided with a sliding rail parallel to the locking rod, and the sliding rail is used for placing a circuit breaker.

7. The switchgear security lock mechanism of claim 1, wherein: the circuit breaker is provided with a push block, the push block is used for driving the connecting rod gate mechanism to open the through hole in the process that the circuit breaker is placed in the working area, and the other end of the locking rod performs locking action.