Automatic locking device of medium voltage switch cabinet door
Technical Field
The utility model relates to a medium voltage switchgear technical field especially relates to an automatic locking device of medium voltage switchgear door.
Background
The switch cabinet is an electric device, the outside line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, each branch circuit is arranged according to the requirement, such as an instrument, an automatic control, a motor magnetic switch, various alternating current contactors and the like, some switch cabinets are also provided with a high-voltage chamber and a low-voltage chamber, and are provided with a high-voltage bus, such as a power plant and the like, and some switch cabinets are also provided with a low-frequency load reducer for protecting main equipment.
When the switch cabinet is maintained and checked, a worker needs to open the switch door of the switch cabinet to maintain and check, but the switch door of the existing switch cabinet is inconvenient to open, the maintenance and checking efficiency of the worker is reduced, and meanwhile, after the maintenance is finished, the switch door cannot be automatically closed, the worker is still required to be manually closed, the trouble of the worker is increased, and therefore, the automatic locking device for the medium-voltage switch cabinet door is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an automatic locking device for a medium-voltage switch cabinet door.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automatic locking device for a medium-voltage switch cabinet door comprises a cabinet body and a switch door, wherein a connecting groove is formed in one side of the cabinet body, a rotating shaft is connected in the connecting groove in a rotating mode, the top of the rotating shaft extends to the outside of the cabinet body, a mounting plate is fixedly connected to the top of the rotating shaft, a torsion spring is connected to the bottom of the mounting plate, and the torsion spring is located on the outer side of the rotating shaft;
the switch door is provided with a square cavity, one side of the square cavity is fixedly connected with a plurality of extension springs, the extension springs are far away from one side of the square cavity and fixedly connected with a sliding plate, one side of the sliding plate is far away from one side of the extension springs and is fixedly connected with an insertion block, the insertion block extends out of the switch door, one side of the sliding plate is fixedly connected with a plurality of fixing rods, and the fixing rods are far away from one end of the sliding plate and are fixedly connected with a handle.
Preferably, the switch door is located and has seted up a plurality of square grooves on the square chamber, the dead lever passes through the outside of square groove extension department switch door, the lateral wall of sliding plate and the inside wall in square chamber are the setting of sliding.
Preferably, a sliding groove is formed in one side, located in the square cavity, of the switch door, and the plurality of insertion blocks extend out of the switch door through the sliding groove.
Preferably, one side of the cabinet body, which is far away from the connecting groove, is provided with a plurality of sliding grooves, the sliding grooves are provided with inserting grooves, the sliding grooves and the inserting blocks are correspondingly arranged, the sliding grooves and the inserting blocks are arranged in a sliding manner, and the inserting blocks and the inserting grooves are arranged in a sliding manner.
Preferably, the cabinet body is located and has seted up the rotation groove on the spread groove, the pivot is connected through rotating groove and cabinet body rotation, the pivot extends the outside of the cabinet body through rotating the groove.
Preferably, one end of the torsion spring is connected to the bottom of the mounting plate, and the other end of the torsion spring is connected to the top of the cabinet body.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides an automatic locking device of medium voltage switchgear door through the cooperation between pivot, mounting panel, torque spring, expanding spring, sliding plate and the grafting piece, has portably opened the operation of switch door to the staff on the one hand, has promoted the work efficiency that the staff maintained the inspection. On the other hand, when the switch door needs to be closed, the switch door is automatically closed according to the action of the torsion spring only by loosening the handle, so that the trouble of workers is reduced, and the convenience is added for the workers.
Drawings
Fig. 1 is a schematic structural view of an automatic locking device for a medium-voltage switchgear door according to the present invention;
fig. 2 is a schematic structural view of a switching door of an automatic locking device for a medium-voltage switch cabinet door according to the present invention;
fig. 3 is a cross-sectional view of a switch door of an automatic locking device for a medium-voltage switch cabinet door provided by the present invention;
fig. 4 is a schematic structural view of a cabinet body of an automatic locking device for a medium voltage switch cabinet door according to the present invention;
fig. 5 is an enlarged view of fig. 1 at a.
In the figure: 1. a cabinet body; 101. a rotating shaft; 102. a torsion spring; 103. mounting a plate; 2. opening and closing the door; 201. a tension spring; 202. a sliding plate; 203. an insertion block; 204. fixing the rod; 205. a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1 and 5, an automatic locking device for a medium-voltage switch cabinet door comprises a cabinet body 1 and a switch door 2, wherein a connecting groove is formed in one side of the cabinet body 1, a rotating shaft 101 is rotatably connected in the connecting groove, the cabinet body 1 is positioned on the connecting groove and is provided with a rotating groove, the rotating shaft 101 is rotatably connected with the cabinet body 1 through the rotating groove, the rotating shaft 101 extends out of the cabinet body 1 through the rotating groove, the top of the rotating shaft 101 extends to the outside of the cabinet body 1, a mounting plate 103 is fixedly connected to the top of the rotating shaft 101, a torsion spring 102 is connected to the bottom of the mounting plate 103, the torsion spring 102 is positioned on the outer side of the rotating shaft 101, one end of the torsion spring 102 is connected to the bottom of the mounting plate 103, and the other end of the torsion spring 102 is connected to the top of the cabinet body 1;
as shown in fig. 1, 2, 3 and 4, a square cavity is formed on the switch door 2, one side of the square cavity is fixedly connected with a plurality of extension springs 201, one side of the extension springs 201 far away from the square cavity is fixedly connected with a sliding plate 202, one side of the sliding plate 202 far away from the extension springs 201 is fixedly connected with an insertion block 203, the insertion block 203 extends out of the switch door 2, one side of the cabinet body 1 far away from the connecting groove is provided with a plurality of sliding grooves, the plurality of sliding grooves are provided with insertion grooves, the plurality of sliding grooves and the plurality of insertion blocks 203 are correspondingly arranged, the plurality of sliding grooves and the plurality of insertion blocks 203 are arranged in a sliding manner, the insertion block 203 and the insertion grooves are arranged in a sliding manner, one side of the switch door 2 located at the square cavity is provided with a sliding groove, the plurality of insertion blocks 203 extend out of the switch door 2 through the sliding groove, one side of the sliding plate 202 is fixedly connected with a plurality of fixing rods 204, the switch door 2 located at the square cavity is provided with a plurality of square grooves, the dead lever 204 passes through the outside of square groove extension department switch door 2, and the lateral wall of sliding plate 202 sets up for sliding with the inside wall in square chamber, and the one end fixedly connected with handle 205 of sliding plate 202 is kept away from to a plurality of dead levers 204.
As shown in fig. 1 to 5, the functional principle of the present invention can be illustrated by the following operation modes: when the switch door 2 needs to be opened, the sliding handle 205 drives the sliding plate 202 to slide in the square cavity, the sliding plate 202 drives the insertion block 203 to be separated from the insertion groove when sliding, at the moment, the handle 205 is pulled outwards, the switch door 2 is opened, when needing to be closed, only the handle 205 needs to be loosened, the switch door 2 can automatically return according to the matching between the rotating shaft 101 and the torsion spring 102, when the insertion block 203 touches the sliding groove, the sliding is carried out on the sliding groove, when the insertion block 203 touches the insertion groove, the insertion block 203 is inserted into the insertion groove according to the effects of the sliding plate 202 and the expansion spring 201, the switch door 2 is closed, and it needs to be explained that through the arrangement, on the one hand, the operation of opening the switch door 2 by a worker is simplified, and the working efficiency of the worker for maintenance and inspection is improved. On the other hand, when the switch door 2 needs to be closed, the switch door 2 is automatically closed under the action of the torsion spring 102 only by loosening the handle 205, so that the trouble of workers is reduced, and the convenience is added to the workers.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.