CN102780170A

CN102780170A - Interlocking mechanism for door closing operation of switch cabinet

Info

Publication number: CN102780170A
Application number: CN2012102437324A
Authority: CN
Inventors: 田云霞; 赵美莲; 何波
Original assignee: Zhenjiang Daqo Eaton Electrical Systems Co Ltd
Current assignee: Zhenjiang Daqo Eaton Electrical Systems Co Ltd
Priority date: 2012-07-16
Filing date: 2012-07-16
Publication date: 2012-11-14

Abstract

The invention discloses an interlocking mechanism for door closing operation of a switch cabinet. The interlocking mechanism comprises a middle door of the switch cabinet, as well as 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 column, 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 formed on the two sides of a handcart panel of a contactor, 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 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

The switch cubicle operation interlocking mechanism of closing the door

Technical field

The present invention relates to a kind of interlocking device of switch cubicle, specifically a kind of switch cubicle that is used for being pressed in complete equipment operation interlocking mechanism of closing the door.

Background technology

Switch cubicle of the prior art generally all is will be with the earthed switch separating brake, and then the contactor handcart is directly shaken the service position, does the generation of the phenomenon that can prevent to get an electric shock like this; Ensure operating personnel's personal safety; But facts have proved behind the earthed switch separating brake, under the situation that middle door is not closed, still might have the generation of electric shock phenomenon, therefore behind the earthed switch separating brake; In directly the contactor handcart is shaken the service position under the door situation of not closing way still be not thorough; Do not meet field-work standards, be unfavorable for operating personnel's handling safety, exist certain potential safety hazard.

Summary of the invention

The technical problem that the present invention will solve provide a kind of must be under the situation that Zhong Men closes could be with the switch cubicle that the contactor handcart shakes the service position operation interlocking mechanism of closing the door.

In order to solve the problems of the technologies described above; The switch cubicle of the present invention operation interlocking mechanism of closing the door; Comprise the middle door of switch cubicle and the column of the Zhong Men left and right sides; In an end of door be hinged on the column of one of them, the inboard of said Zhong Men left and right sides column is hinged with the interlocking hook plate through jointed shaft, is respectively arranged with the extension spring that is connected interlock hook plate and column between the interlocking hook plate of the left and right sides and two columns; The both sides of said contactor handcart panel be provided with the hook plate of interlocking on the lockhole that matches of hook, 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 right ends 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 inclined-plane that door pressed smoothly during the rear end of said interlocking hook plate was provided with and can makes.

After adopting above-mentioned structure, because the interlocking hook plate that can rotate around the axle center that is provided with, 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 could the contactor handcart being shaken under middle the situation of closing the purpose of service position thus; Meet field-work standards, guaranteed operating personnel's handling safety.

Description of drawings

Fig. 1 is the structural representation of door opening state of the present invention;

Fig. 2 is the close the door structural representation of state of the present invention;

Fig. 3 is A of the present invention place structure for amplifying sketch map.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the switch cubicle of the present invention operation interlocking mechanism of closing the door is done further explain.

As shown in the figure; The switch cubicle of the present invention operation interlocking mechanism of closing the door; 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 through jointed shaft 10 on the column of one of them, and 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 the inclined-plane 9 that can make middle 1 to press smoothly; 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 be provided with the hook plate 3 of interlocking on the lockhole 7 that matches of hook 6, 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 right ends can be pressed against interlocking hook plate 3 caused 10 rotations around the axle center of interlocking hook plate 3, makes to link up with to break away from lockhole (7).

Operation principle is following:

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 sketch map of closing the door; As shown in Figure 2; In the middle of door when closing, the inclined-plane, rear end of Zhong Men left and right sides extruding interlocking hook plate 3, interlocking hook plate 3 overcome under the pulling force of extension spring and rotate 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 again when test position is got back in the service position, after door opened, because the effect of extension spring 4, interlocking hook plate 3 just can automatically revert to initial condition, pins contactor handcart position.

Claims

1. switch cubicle operation interlocking mechanism of closing the door; 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 said Zhong Men left and right sides column (2) is hinged with interlocking hook plate (3) through 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 said contactor handcart panel (5) be provided with the hook plate of interlocking (3) on the lockhole (7) that matches of hook (6); 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 right ends 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 the described switch cubicle of the claim 1 operation interlocking mechanism of closing the door, it is characterized in that: the rear end of said interlocking hook plate (3) is provided with the inclined-plane (9) that middle door (1) is pressed smoothly.