CN202759180U

CN202759180U - Interlocking mechanism for door closing operation of switch cabinet

Info

Publication number: CN202759180U
Application number: CN 201220341099
Authority: CN
Inventors: 田云霞; 赵美莲; 何波
Original assignee: Zhenjiang Daqo Eaton Electrical Systems Co Ltd
Current assignee: Zhenjiang Daquan Intelligent Electric Co ltd
Priority date: 2012-07-16
Filing date: 2012-07-16
Publication date: 2013-02-27
Anticipated expiration: 2022-07-16

Abstract

The utility model discloses an interlocking mechanism for door closing operation of a switch cabinet. The interlocking mechanism comprises a middle door of the switch cabinet, and upright columns positioned on the left side and the right side of the middle door, wherein one end of the middle door is articulated on one of the upright columns, the inner sides of the upright columns on the left side and the right side of the middle door are articulated with interlocking hook plates through articulating shafts, and tension springs for connecting the interlocking hook plates with the upright columns are respectively arranged between the interlocking hook plates on the left side and the right side and the two upright columns; lock holes matched with hanging hooks on the interlocking hook plates are arranged on the two sides of a panel of a contactor handcart, and in the state that the middle door is opened, the hanging hooks on the interlocking hook plates can rotate and can be clamped in the lock holes under the action of pulling force of the tension springs for preventing a handcart from being propelled; and in the state that the middle door is closed, the left end and the right end of the middle door can press the back ends of the interlocking hook plates and enable the hanging hooks on the interlocking hook plates to be separated from the lock holes. After the abovementioned structure is adopted, the purpose of shaking the handcart of the contactor to a working position under the situation that the middle door is closed can be realized, and the interlocking mechanism is in line with the field operation specification and can ensure the safety in operation of operation staff.

Description

Switch cubicle door-closing operation interlocking device

Technical field

The utility model relates to a kind of interlocking device of switch cubicle, specifically a kind of switch cubicle door-closing operation interlocking device for being pressed in the complete equipment.

Background technology

Switch cubicle of the prior art generally all is will be with grounding switch tripping, and then contactor handcart directly shaken the service position, do like this generation of the phenomenon that can prevent from getting an electric shock, ensure operating personnel's personal safety, but facts have proved behind grounding switch tripping, in the situation that middle door is not closed the generation that still might have the electric shock phenomenon, therefore behind grounding switch tripping, the way of directly contactor handcart being shaken the service position in the situation that middle door is not closed is or is not thorough, do not meet field-work standards, the handling safety that is unfavorable for operating personnel exists certain potential safety hazard.

Summary of the invention

The technical problems to be solved in the utility model provide a kind of must be in the situation that Zhong Men closes the switch cubicle door-closing operation interlocking device that contactor handcart could be shaken the service position.

In order to solve the problems of the technologies described above, switch cubicle door-closing operation of the present utility model interlocking device, comprise the middle door of switch cubicle and the column of the Zhong Men left and right sides, one end of middle door is hinged on the column of one of them, the inboard of described Zhong Men left and right sides column is hinged with the interlocking hook plate by jointed shaft, is respectively arranged with the extension spring that is connected interlocking hook plate and column between the interlocking hook plate of the left and right sides and two columns; The both sides of described contactor handcart panel are provided with the lockhole that matches with hook on the hook plate of interlocking, and under middle door open mode, the hook on the interlocking hook plate rotates to be fastened under the effect of the pulling force of extension spring handcart can not be advanced; Under middle door closure state, the two ends, the left and right sides of middle door can be pressed against the rear end of interlocking hook plate and make the hook on the interlocking hook plate break away from lockhole.

The rear end of described interlocking hook plate is provided with the inclined-plane that middle door is pressed smoothly.

After adopting above-mentioned structure, because the interlocking hook plate that can rotate around the axle center that arranges, under middle door open mode, the hook on the interlocking hook plate is fastened in the lockhole, makes handcart can not be advanced to the service position, has guaranteed the safety of maintenance process; And central door is when closing, the Zhong Men two ends are pressed over the rear end of interlocking hook plate, and the hook of interlocking hook plate is broken away from from lockhole, have realized thus contactor handcart to be shaken in middle the situation of closing the purpose of service position, meet field-work standards, guaranteed operating personnel's handling safety.

Description of drawings

Fig. 1 is the structural representation of the utility model door opening state;

Fig. 2 is the close the door structural representation of state of the utility model;

Fig. 3 is the utility model A place structure for amplifying schematic diagram.

Embodiment

Below in conjunction with the drawings and specific embodiments, switch cubicle door-closing operation of the present utility model interlocking device is described in further detail.

As shown in the figure, switch cubicle door-closing operation of the present utility model interlocking device, comprise the middle door 1 of switch cubicle and the column 2 of the Zhong Men left and right sides, one end of middle door is hinged on the column of one of them by jointed shaft 10, the inboard of Zhong Men left and right sides column 2 is provided with interlocking hook plate 3, and the rear end of interlocking hook plate 3 is provided with and can makes middle door 1 inclined-plane that presses smoothly 9; Be respectively arranged with the extension spring 4 that is connected interlocking hook plate 3 and column 2 between the interlocking hook plate 3 of the left and right sides and two columns 2; The both sides of contactor handcart panel 5 are provided with the lockhole 7 that matches with hook 6 on the hook plate 3 of interlocking, and under middle door open mode, the hook 6 on the interlocking hook plate 3 is fastened on handcart can not be advanced; When middle door 1 was closed, the rear end that its two ends, left and right sides can be pressed against interlocking hook plate 3 caused 10 rotations around the axle center of interlocking hook plate 3, makes hook break away from lockhole (7).

Operation principle is as follows:

Fig. 1 is the door opening state structural representation, as shown in Figure 1, this moment, this contactor handcart was in test position, interlocking hook plate 3 and contactor handcart panel 5 side keeping parallelism states, the hook 6 on the interlocking hook plate 3 are fastened on and catch on contactor handcart panel contactor handcart 5 this moment in the lockhole 7 and can't move forward;

Fig. 2 is the status architecture schematic diagram of closing the door, as shown in Figure 2, when central door is closed, the inclined-plane, rear end of Zhong Men left and right sides extruding interlocking hook plate 3, interlocking hook plate 3 overcomes under the pulling force of extension spring and rotates around jointed shaft 10, make the hook 6 of interlocking hook plate 3 front ends break away from lockhole, just can shake the service position by test position with handcart this moment;

When handcart was got back to test position from the service position again, after door opened, because the effect of extension spring 4, interlocking hook plate 3 just can automatically revert to initial condition, pins the contactor handcart position.

Claims

1. switch cubicle door-closing operation interlocking device, comprise the middle door (1) of switch cubicle and the column (2) of the Zhong Men left and right sides, one end of middle door is hinged on one of them column, it is characterized in that: the inboard of described Zhong Men left and right sides column (2) is hinged with interlocking hook plate (3) by jointed shaft (10), is respectively arranged with the extension spring (4) that is connected interlock hook plate (3) and column (2) between the interlocking hook plate (3) of the left and right sides and two columns (2); The both sides of described contactor handcart panel (5) are provided with the lockhole (7) that matches with hook (6) on the hook plate of interlocking (3), under middle door open mode, the hook (6) on the interlocking hook plate (3) rotates to be fastened in the lockhole (7) under the effect of the pulling force of extension spring handcart can not be advanced; Under Zhong Men (1) closed condition, the two ends, the left and right sides of middle door (1) can be pressed against the rear end of interlocking hook plate (3) and make the hook on the interlocking hook plate (3) break away from lockhole (7).

2. according to switch cubicle door-closing operation claimed in claim 1 interlocking device, it is characterized in that: the rear end of described interlocking hook plate (3) is provided with the inclined-plane (9) that middle door (1) is pressed smoothly.