CN215731387U

CN215731387U - Grounding interlocking device

Info

Publication number: CN215731387U
Application number: CN202120701909.5U
Authority: CN
Inventors: 刘坤鹏; 夏华磊; 张潇
Original assignee: State Grid Xuzhou Power Supply Co
Current assignee: State Grid Xuzhou Power Supply Co
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2022-02-01
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses a grounding interlocking device which comprises a switch cabinet, a controller, a grounding connecting rod, a connecting shaft, a rotating device and a grounding end, wherein the switch cabinet comprises a cabinet door and a cabinet body, a cabinet door switch is arranged between the cabinet door and the cabinet body, an electromagnetic lock is arranged on the cabinet door, one end of the grounding connecting rod is connected with the cabinet body of the switch cabinet, the other end of the grounding connecting rod is connected with the connecting shaft, the connecting shaft is arranged on the grounding end, the rotating device is arranged on the ground at the lower end of the connecting shaft and connected with a rotating shaft, the controller is arranged on the cabinet door of the switch cabinet, and the controller is connected with the electromagnetic lock, the cabinet door switch and the rotating device. Adopt the controller to carry out the earthing device of automatic control each cubical switchboard, the device simple structure, performance safe and reliable, simple operation can overcome prior art's defect.

Description

Grounding interlocking device

Technical Field

The utility model belongs to the technical field of electric power, and relates to a grounding interlocking device.

Background

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, a grounding switch, an operating mechanism, a mutual inductor, various protection devices and the like. In order to improve the safety performance of the switch cabinet, the existing switch cabinet is provided with the grounding interlocking device, the rear door of the switch cabinet is opened after the grounding switch is switched on, the grounding switch can still be operated, and at the moment, the grounding switch can still be switched off, and the breaker is switched on and supplies power, so that the cable chamber compartment is electrified and the personal safety of operators is damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the grounding interlocking device provided by the utility model adopts the controller to automatically control the grounding device of each switch cabinet, has the advantages of simple structure, safe and reliable performance and convenience in operation, and can overcome the defects of the prior art.

The utility model provides a grounding interlocking device which comprises a switch cabinet, a controller, a grounding connecting rod, a connecting shaft, a rotating device and a grounding end, wherein the switch cabinet comprises a cabinet door and a cabinet body, a cabinet door switch is arranged between the cabinet door and the cabinet body, an electromagnetic lock is arranged on the cabinet door, one end of the grounding connecting rod is connected with the cabinet body of the switch cabinet, the other end of the grounding connecting rod is connected with the connecting shaft, the connecting shaft is arranged on the grounding end, the rotating device is arranged on the ground at the lower end of the connecting shaft and connected with a rotating shaft, the controller is arranged on the cabinet door of the switch cabinet, and the controller is connected with the electromagnetic lock, the cabinet door switch and the rotating device.

Furthermore, a connecting end is arranged at one end of the grounding connecting rod connected with the connecting shaft, and a return spring is arranged in the connecting end.

Further the connecting shaft comprises a convex wheel, the side surface of the rotating shaft of the convex wheel is provided with a connecting hole, and the side surface of the convex wheel is provided with a contact switch.

The contact switch further comprises a contact rod and a normally open contact, the normally open contact is driven to be closed after the contact rod is in contact with the grounding connecting rod, and the normally open contact is connected with the controller through a connecting wire, so that the controller can detect a signal of closing the contact switch.

Further rotating device includes rotating motor, and this rotating motor's pivot is installed in the connecting hole of connecting axle convex wheel side, rotating motor includes control end and power input end, power input end passes through the connecting wire and inserts the power, the corotation and the reversal of rotating motor can be controlled to the control end to link to each other with the controller through the connecting wire.

Further the electromagnetic lock includes electromagnetic means and bolt, and the bolt is installed in electromagnetic means, fixes the bolt in the cabinet internally through electromagnetic means, electromagnetic means includes the control end, and this control end passes through the connecting wire and links to each other with the controller, makes the operation that the controller can automatic control electromagnetic lock.

Further cabinet door switch includes normally open contact, and this normally open contact passes through the connecting wire and links to each other with the controller, makes the controller can detect this cabinet door switch closed signal.

The controller comprises a control chip, a control panel, a digital quantity output module and a digital quantity input module, wherein the control chip is connected with the control panel, the digital quantity output module and the digital quantity input module, the control panel can set parameter values in the control chip, the digital quantity output module is connected with an electromagnetic device of the electromagnetic lock and a rotating motor of the rotating device through connecting wires, and the digital quantity input module is connected with a normally open contact of the contact switch and a normally open contact of the cabinet door switch through the connecting wires.

Drawings

Fig. 1 is a schematic view of the overall structure of a grounding interlock device of the utility model;

fig. 2 is a schematic view of a structure of a connecting shaft of the grounding interlock device of the utility model.

In the figure: 1. a switch cabinet; 2. a controller; 3. a ground connecting rod; 4. a connecting shaft; 5. a rotating device; 6. a ground terminal; 7. opening and closing the cabinet door; 8. an electromagnetic lock; 9. a convex wheel; 10. a contact switch.

Detailed Description

The following describes in detail a specific embodiment of the ground interlock apparatus according to the present invention with reference to the drawings.

As shown in fig. 1, the utility model provides a grounding interlocking device, which comprises a switch cabinet 1, a controller 2, a grounding connecting rod 3, a connecting shaft 4, a rotating device 5 and a grounding terminal 6, wherein the switch cabinet 1 comprises a cabinet door and a cabinet body, a cabinet door switch 7 is arranged between the cabinet door and the cabinet body, an electromagnetic lock 8 is arranged on the cabinet door, one end of the grounding connecting rod 3 is connected with the cabinet body of the switch cabinet 1, the other end of the grounding connecting rod is connected with the connecting shaft 4, the connecting shaft 4 is arranged on the grounding terminal 6, the rotating device 5 is arranged on the ground at the lower end of the connecting shaft 4 and is connected with a rotating shaft, the controller 2 is arranged on the cabinet door of the switch cabinet 1, and the controller 2 is connected with the electromagnetic lock 8, the cabinet door switch 7 and the rotating device 5.

According to the above, the end of the ground connection rod 3 connected to the connection shaft 4 is provided with a connection end having a return spring therein.

As shown in fig. 2, the connecting shaft 4 includes a convex wheel 9, a side surface of a rotating shaft of the convex wheel 9 has a connecting hole, and a side surface of the convex wheel 9 has a contact switch 10.

According to the above, the contact switch 10 includes a contact rod and a normally open contact, after the contact rod touches the ground connection rod 3, the normally open contact is driven to be closed, and the normally open contact is connected with the controller 2 through a connection line, so that the controller 2 can detect a signal that the contact switch 10 is closed.

According to the above, wherein the rotating device 5 comprises a rotating motor, a rotating shaft of the rotating motor is installed in a connecting hole in the side surface of the convex wheel 9 of the connecting shaft 4, the rotating motor comprises a control end and a power input end, the power input end is connected to a power supply through a connecting wire, and the control end can control the positive rotation and the reverse rotation of the rotating motor and is connected with the controller 2 through the connecting wire.

According to the above, wherein electromagnetic lock 8 includes electromagnetic means and bolt, and the bolt is installed in electromagnetic means, rotates the motor through electromagnetic means and fixes the bolt rotation motor internal at the cabinet, electromagnetic means includes the control end, and this control end passes through the connecting wire and links to each other with controller 2, makes controller 2 can automatic control electromagnetic lock 8's operation.

According to the above, the cabinet door switch 7 includes a normally open contact, and the normally open contact is connected to the controller 2 through a connection line, so that the controller 2 can detect a signal that the cabinet door switch 7 is closed.

According to the above, the controller 2 includes a control chip, a control panel, a digital output module and a digital input module, the control chip is connected to the control panel, the digital output module and the digital input module, the control panel can set a parameter value in the control chip, the digital output module is connected to the electromagnetic device rotating motor of the electromagnetic lock 8 and the rotating motor of the rotating device 5 through a connecting wire, and the digital input module is connected to the normally open contact of the contact switch 10 and the normally open contact of the cabinet door switch 7 through a connecting wire.

The working principle of the grounding interlocking device is as follows: when the staff need open cubical switchboard 1, open electromagnetic lock 8 on controller 2, after this instruction was sent, controller 2 was earlier operation rotating device 5, and rotating device 5 drives connecting axle 4 and rotates, makes connecting axle 4 break away from with ground connection connecting rod 3. When the connecting shaft 4 and the grounding connecting rod 3 are completely separated, the contact rod of the contact switch 10 rebounds, the normally open contact of the contact switch 10 is in a closed state, and at the moment, the switch cabinet 1 is disconnected with the grounding end 6. After controller 2 detected this contact switch 10 closed circuit, 2 operation electromagnetic lock 8 of controller, rotate the bolt and be connected of motor disconnection and the cabinet body, make the cabinet door open, the staff works to the power equipment in the cubical switchboard 1, after the work is accomplished, close the cabinet door, the cabinet door closure touches the cabinet door switch 7 closure of installation on the cabinet body, after controller 2 detected this signal, through the closed cabinet door of 8 closed electromagnetic lock, move rotating device 5 simultaneously, link to each other cubical switchboard 1 with earthing terminal 6.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a ground connection interlock, its characterized in that, includes cubical switchboard, controller, ground connection pole, connecting axle, rotating device and earthing terminal, the cubical switchboard includes the cabinet door and the cabinet body, the cabinet door switch is equipped with between the cabinet door and the cabinet body, has installed the electromagnetic lock on the cabinet door, ground connection pole one end links to each other with the cabinet body of cubical switchboard, and the other end links to each other with the connecting axle, the connecting axle is installed on the ground connection end, rotating device installs subaerial at the connecting axle lower extreme to link to each other with the axis of rotation, the controller is installed on the cabinet door of cubical switchboard, and this controller links to each other with electromagnetic lock, cabinet door switch and rotating device.

2. A ground interlock as claimed in claim 1 wherein the end of the ground link to which the ground link is connected is fitted with a link end having a return spring therein.

3. The ground engaging interlock of claim 1 wherein said connecting shaft comprises a male wheel having a connecting hole on a side of its shaft and a contact switch on a side of the male wheel.

4. The grounding interlock device as claimed in claim 3, wherein the contact switch comprises a contact rod and a normally open contact, the contact rod drives the normally open contact to close after being touched with the grounding connecting rod, and the normally open contact is connected with the controller through a connecting wire, so that the controller can detect a signal that the contact switch is closed.

5. The grounding interlock device as claimed in claim 1, wherein the rotating device comprises a rotating motor, a rotating shaft of the rotating motor is installed in a connecting hole on the side surface of the convex wheel of the connecting shaft, the rotating motor comprises a control end and a power input end, the power input end is connected with a power supply through a connecting wire, and the control end can control the forward rotation and the reverse rotation of the rotating motor and is connected with the controller through the connecting wire.

6. The grounding interlock device as claimed in claim 1, wherein the electromagnetic lock includes an electromagnetic device and a latch, the latch is mounted in the electromagnetic device, the latch is fixed in the cabinet body by the electromagnetic device, and the electromagnetic device includes a control terminal connected to the controller by a connecting wire, so that the controller can automatically control the operation of the electromagnetic lock.

7. The ground interlock of claim 1 wherein the cabinet door switch includes a normally open contact that is connected to the controller by a connecting wire that allows the controller to detect a signal that the cabinet door switch is closed.

8. The grounding interlocking device as claimed in any one of claims 4 to 7, wherein the controller comprises a control chip, a control panel, a digital quantity output module and a digital quantity input module, the control chip is connected with the control panel, the digital quantity output module and the digital quantity input module, the control panel can set parameter values in the control chip, the digital quantity output module is connected with the electromagnetic device of the electromagnetic lock and the rotating motor of the rotating device through connecting wires, and the digital quantity input module is connected with the normally open contacts of the contact switch and the normally open contacts of the cabinet door switch through connecting wires.