CN116153687A

CN116153687A - Forced locking device with alarm function for transformer substation

Info

Publication number: CN116153687A
Application number: CN202211100168.0A
Authority: CN
Inventors: 李一雯; 张晓�; 董意; 叶菁; 金王天野
Original assignee: State Grid Zhejiang Electric Power Co Ltd Taizhou Jiaojiang District Power Supply Co; Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Current assignee: State Grid Zhejiang Electric Power Co Ltd Taizhou Jiaojiang District Power Supply Co; Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-05-23

Abstract

The forced locking device of the transformer substation with the alarm function comprises a main shell, wherein a cover plate which is opened and closed in a rotating way is arranged on the main shell, a powerful electromagnet is arranged in the main shell, the main shell can cover a panel button of a transformer cabinet, a power supply assembly is arranged in the main shell, and a lock is arranged between the cover plate and the main shell; and an alarm assembly is arranged on the main shell, and under the working state of the powerful electromagnet, any side edge of the main shell is separated from the cabinet body to trigger the alarm assembly. According to the invention, the main shell is covered outside the cabinet button which is not allowed to be operated, so that a protective cover structure is formed, the protective cover is adsorbed on the cabinet through the powerful electromagnet, misoperation of irrelevant personnel is avoided, when the irrelevant personnel moves the forced locking device, the alarm assembly is triggered to alarm, the alarm assembly can send an alarm signal to timely send out a warning and remind an operator of moving the forced locking device, the operator can conveniently know the protection condition in time, and the safety risk is avoided.

Description

Forced locking device with alarm function for transformer substation

Technical Field

The invention belongs to the technical field of safety protection of electric power operation, and particularly relates to a forced locking device of a transformer substation with an alarm function.

Background

On the power failure overhauling site in the transformer substation, a switch on a cabinet body is required to be disconnected, after the transformer operation and maintenance is completed, a button key of the cabinet body which is not allowed to be moved is hung with a warning sign board for ' working by people ' to prohibit closing ', and buttons of adjacent cabinet bodies are shielded by adopting a red cloth curtain to warn other irrelevant personnel not to malfunction. However, this way can only remind other personnel to be unable to operate, but can not completely avoid the closing operation that external personnel may produce, if because the signboard is moved or the external personnel that cause other circumstances carry out the closing operation, very easily cause the incident, serious even can crisis personnel's life.

Disclosure of Invention

Aiming at the problem that foreign personnel are easy to operate by mistake in the prior art, the invention provides the forced locking device of the transformer substation with the alarm function, which completely covers buttons which are not allowed to be operated, so that only staff can open the forced locking device to operate, and the safety risk is reduced.

The invention provides a forced locking device of a transformer substation with an alarm function, which solves the technical problems, and the forced locking device comprises a main shell, wherein a cover plate which is opened and closed in a rotating way is arranged on the main shell; the main casing and the cabinet body of the transformer substation are provided with alarm components on the adsorbed end surfaces, and under the working state of the powerful electromagnet, any side of the main casing is separated from the cabinet body to trigger the alarm components. The main shell is covered outside the button of the cabinet body which is not allowed to be operated, so that a protective cover structure is formed, the forced locking device is firmly adsorbed on the cabinet body through the powerful electromagnet, forced sealing of the button in power maintenance operation is formed, misoperation of irrelevant personnel is avoided, the alarm assembly is triggered to alarm when the irrelevant personnel moves the forced locking device, the alarm assembly can send an alarm signal to alarm and prompt the operation personnel to move in time, the operation personnel can conveniently know the protection condition in time, and safety risks are avoided.

Preferably, the alarm assembly includes four alarm units mounted on four sides of the main housing, respectively. Therefore, any side of the main shell body is separated from the cabinet body to trigger the alarm unit, so that the alarm effect of the alarm assembly is more effective.

Preferably, the alarm unit comprises a telescopic head, a spring, a first contact piece and a second contact piece, wherein a mounting hole is formed in the end face of the main shell, the telescopic head is slidably mounted in the mounting hole and connected with the spring between the side wall of the mounting hole, one end of the telescopic head, which is positioned in the mounting hole, is provided with the first contact piece, the bottom wall of the mounting hole is provided with the second contact piece, one end of the telescopic head extends out of the mounting hole under the action of the spring and enables the first contact piece to be separated from the second contact piece, and the main shell is adsorbed on a cabinet body of a transformer substation and can push the telescopic head to retract into the mounting hole and enable the first contact piece to be in butt joint with the second contact piece. The absorption effect of the forced locking device and the cabinet body is judged by controlling the abutting or separating of the first contact piece and the second contact piece through the expansion of the expansion pin in the alarm unit, when the main shell body and the cabinet body are in an absorption state, the normal protection state is achieved at the moment, the expansion pin is completely retracted into the mounting hole, the first contact piece and the second contact piece are abutted, the alarm component does not send an alarm signal at the moment, when the forced locking device is moved by an external person, the main shell body can be separated from the cabinet body at the moment, the expansion head can be ejected, the first contact piece and the second contact piece are separated, and the alarm component can send an alarm signal at the moment.

Preferably, the alarm assembly further comprises an alarm chip, the alarm chip is in communication connection with the alarm units, the alarm chip sends an alarm signal when the first contact piece and the second contact piece in any one of the alarm units are separated, the communication assembly is arranged in the main shell, and the alarm chip is in communication connection with the communication assembly. The alarm chip is used for sending out alarm signals, and the alarm signals can be remotely sent to staff through the communication assembly.

Preferably, the powerful electromagnets are provided with four corner positions distributed inside the main casing. The forced locking device is adsorbed on the cabinet body in multiple points, so that the stability and the firmness of the forced locking device adsorbed on the cabinet body are improved.

Preferably, the power supply assembly includes a built-in battery mounted inside the housing and a power cord for connecting an external power supply. The electromagnet is powered by two ways, an external power supply can be connected through a power line, the electromagnet can be powered by a built-in battery, and the electromagnet can be replaced by an internal battery after the external power supply is powered off, so that the forced locking device caused by the power failure of the external power supply is prevented from losing the protection effect.

Preferably, a switch for controlling the electromagnet to be electrified or powered off is arranged in the main shell. The switch is arranged inside the main shell, and outside irrelevant personnel cannot close the switch, namely, the electromagnet cannot lose the adsorption effect, so that the safety effect can be improved.

Preferably, one end of the cover plate is connected with the main shell through a rotating shaft, and the rotating shaft is positioned inside the main shell in a cover plate locking state. The cover plate is prevented from being opened outside, and the safety performance is further improved.

Preferably, the main shell is provided with a lock nose, the cover plate is provided with a through hole matched with the lock nose, the lock nose can penetrate through the through hole, and the lockset is locked on the lock nose.

Preferably, a magnet mounting seat is arranged in the main shell, and the powerful electromagnet is fixed on the magnet mounting seat through a screw. The installation of the powerful electromagnet is convenient.

The technical scheme of the invention has at least the following technical effects:

1. by arranging the main shell capable of covering the panel buttons, misoperation of irrelevant personnel can be avoided;

2. the electromagnet is arranged, so that the forced locking device can be firmly adsorbed on the cabinet body, the forced locking device is prevented from being moved outside, and the safety is improved;

3. through setting up the tool to lock, realize only that the operation personnel can open the operation, improved the security.

4. Through setting up alarm component, force the blocking device when being removed to breaking away from the cabinet body under operating condition, can send alarm signal, improve the safety effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of the overall construction of the components of the present invention;

FIG. 2 is a cover plate open state diagram of the present invention;

FIG. 3 is a block diagram of a powerful electromagnet and magnet mount of the present invention;

FIG. 4 is a diagram of the distribution structure of the powerful electromagnets of the present invention;

FIG. 5 is a side cross-sectional view of the present invention

FIG. 6 is an enlarged view of a part of the mounting structure of the alarm unit of the present invention (the pop-up state of the telescopic pin when not in operation);

fig. 7 is a schematic view of the invention in a retracted state of the telescopic pin of fig. 6 in an operating state.

Fig. 8 is a schematic view of the structure of the invention shown in fig. 5 mounted on a cabinet.

In the figure: 1. a main housing; 2. a cover plate; 3. a powerful electromagnet; 4. a built-in battery; 5. a power line; 6. a switch; 7. a communication assembly; 8. a lock nose; 9. a through hole; 10. a lock; 11. a magnet mounting base; 12. a warning board; 13. a retractable head; 14. a spring; 15. a first contact; 16. and a second contact.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention discloses a transformer substation forced locking device with an alarm function, as shown in figures 1-8, comprising a main shell 1, wherein the main shell 1 is used as an installation base member of the whole forced locking device, one side of the main shell 1 is provided with a cover plate 2 which is rotatably opened and closed, one end of the cover plate 2 is connected with the main shell 1 through a rotating shaft, and the rotating shaft is positioned in the main shell 1 in a locking state of the cover plate 2, so that the cover plate 2 can be prevented from being opened outside by irrelevant personnel, and the safety performance of the whole device is improved. The other end of the main casing 1 is of an open structure and can cover the panel buttons of the transformer cabinet, and when the transformer cabinet is specifically used, the main casing 1 can completely lock the panel buttons, the protection screen, the cabinet door screw holes and the like and cannot be operated outside. Wherein a powerful electromagnet 3 is arranged in a main shell 1 and used for adsorbing the main shell 1 (locking device) on a cabinet body of a transformer substation, a power supply component for supplying power to the powerful electromagnet 3 is arranged in the main shell 1, and the power supply component comprises a built-in battery 4 arranged in the shell and a power wire 5 used for connecting an external power supply. The electromagnet is powered in two ways, namely, the strong electromagnet 3 is powered by connecting an external power supply through a power line 5; secondly, when the external power supply is powered off, the electromagnet is powered through the built-in battery 4; thus, the forced locking device can be prevented from losing the protection effect caused by the power failure of the external power supply.

In this embodiment, a lock nose 8 is provided on the main housing 1, a through hole 9 matching with the lock nose 8 is provided on the cover plate 2, the lock nose 8 can pass through the through hole 9, a lock 10 is locked on the lock nose 8 to lock the cover plate, wherein the lock 10 is a five-prevention padlock, the key is only held in the hands of an operator, the forced locking device is firmly adsorbed on the cabinet body by the powerful electromagnet 3, and under normal conditions, once the powerful electromagnet 3 is adsorbed on the cabinet, the powerful electromagnet is difficult to detach from the outside, and after the lock 10 is opened by a corresponding manager, the cover plate 2 can be opened to operate the panel button covered inside. The powerful electromagnet 3 is fixed on the magnet mounting seat 11 through the screw, so that the powerful electromagnet 3 is convenient to mount.

In order to further improve the protection effect, the invention is provided with the alarm component on the end surface adsorbed by the main shell 1 and the cabinet body of the transformer substation, and any side of the main shell 1 is separated from the cabinet body to trigger the alarm component under the working state of the powerful electromagnet 3. The specific principle is as follows: when an irrelevant person does not open the lockset 10, the situation that the situation needs to operate the part covered by the main shell 1 needs to be lifted up integrally, namely, the situation that the end face of the main shell 1 is separated from the cabinet body by overcoming the magnetic attraction between the powerful electromagnet 3 and the cabinet body is overcome.

The alarm assembly of the present invention includes four alarm units mounted on four sides of the main casing 1, respectively. Outside irrelevant personnel can generally select one side of waning main casing 1 at first in order to open main casing 1, and this moment all is provided with an alarm unit through on every side, and any side of main casing 1 breaks away from the cabinet body and all can trigger alarm unit, makes alarm assembly's warning effect more effective.

One embodiment of the alarm unit comprises a telescopic head 13, a spring 14, a first contact piece 15 and a second contact piece 16, wherein a mounting hole is formed in the end face of the main shell 1, the telescopic head 13 is slidably mounted in the mounting hole and is connected with the spring 14 between the side wall of the mounting hole, one end of the telescopic head 13 in the mounting hole is provided with the first contact piece 15, the bottom wall of the mounting hole is provided with the second contact piece 16, when the alarm unit does not work (the main shell 1 is not attached to a cabinet body through a powerful electromagnet 3), one end of the telescopic head 13 extends out of the mounting hole under the action of the spring 14 and enables the first contact piece 15 to be separated from the second contact piece 16, and when the main shell 1 is attached to the cabinet body of a transformer substation under the action of the powerful electromagnet 3, the telescopic head 13 can retract into the mounting hole and enable the first contact piece 15 to be abutted against the second contact piece 16 under the action of the surface of the cabinet body. The adsorption effect of the forced locking device and the cabinet body is judged by controlling the abutting or separating of the first contact piece 15 and the second contact piece 16 through the expansion of the expansion pin in the alarm unit, when the main shell 1 and the cabinet body are in an adsorption state, the state is in a normal protection state, the expansion pin is completely retracted into the mounting hole, the first contact piece 15 and the second contact piece 16 are abutted, the alarm component does not send an alarm signal, when the forced locking device is moved by an external person, the main shell 1 is separated from the cabinet body, the telescopic head 13 is ejected, the first contact piece 15 and the second contact piece 16 are separated, and the alarm component can send an alarm signal.

In order to better detect the state of the alarm unit and send out an alarm signal, the alarm assembly in the invention further comprises an alarm chip, wherein the alarm chip is in communication connection with the alarm unit, the first contact piece 15 and the second contact piece 16 in any alarm unit are separated to enable the alarm chip to send out the alarm signal, the communication assembly 7 is arranged in the main shell 1, and the alarm chip is in communication connection with the communication assembly 7. The alarm chip is used for sending out alarm signals, and the alarm signals can be remotely sent to staff through the communication assembly 7.

In order to make the positive locking device more stably adsorbed on the cabinet, the powerful electromagnet 3 is provided with four corner positions distributed inside the main casing 1. The forced locking device is adsorbed on the cabinet body in multiple points, so that the stability and the firmness of the forced locking device adsorbed on the cabinet body are improved. In actual design, if the coverage range is intersected, the side positions of the main shell 1 can be additionally provided with the powerful electromagnets 3 respectively, wherein the inside of the main shell 1 is provided with the magnet mounting seats 11, and the powerful electromagnets 3 are fixed on the magnet mounting seats 11 through screws. In this embodiment, the adsorption surface of powerful electromagnet 3 is parallel and level with an end face of main casing 1, avoids leaving the gap between main casing 1 and the cabinet body, makes the installation more stable, and the protection effect is better.

In addition, the invention is provided with the warning board 12 on the cover board 2, and the warning board 12 can be embedded or adhered on the cover board 2. The warning sign 12 can be used for identifying maintenance information, time, telephone of operators and the like, so that irrelevant staff can know maintenance conditions and timely contact with operators under special conditions.

In order to facilitate the opening or closing of the electromagnet, a switch 6 for controlling the energization or the de-energization of the electromagnet is provided inside the main casing 1. The switch 6 is arranged in the main shell 1, so that the safety effect can be improved, when the cabinet body is required to be installed, the electromagnet switch 6 is turned on and electrified, so that the electromagnet switch 6 can be stably adsorbed on the cabinet body, and when the position of the forced locking device is required to be disassembled, moved or adjusted, the switch 6 can be turned off, the switch 6 is arranged in the main shell 1, and irrelevant personnel cannot cut off the power outside; the safety effect can be increased.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.

Claims

1. The forced locking device of the transformer substation with the alarm function is characterized by comprising a main shell, wherein a cover plate which is opened and closed in a rotating way is arranged on the main shell, a powerful electromagnet used for adsorbing the locking device on a transformer cabinet is arranged in the main shell, one end of the main shell is of an open structure and can cover a panel button of the transformer cabinet, a power supply assembly which is connected with the powerful electromagnet in a ferroelectric way is arranged in the main shell, and a lock is arranged between the cover plate and the main shell; the main casing and the cabinet body of the transformer substation are provided with alarm components on the adsorbed end surfaces, and under the working state of the powerful electromagnet, any side of the main casing is separated from the cabinet body to trigger the alarm components.

2. A substation positive locking device with alarm function according to claim 1, characterized in that the alarm assembly comprises four alarm units mounted on four sides of the main housing, respectively.

3. The transformer substation forced locking device with the alarm function according to claim 2, wherein the alarm unit comprises a telescopic head, a spring, a first contact piece and a second contact piece, a mounting hole is formed in the end face of the main shell, the telescopic head is slidably mounted in the mounting hole and is connected with the spring between the side wall of the mounting hole, the first contact piece is arranged at one end of the telescopic head located in the mounting hole, the second contact piece is arranged at the bottom wall of the mounting hole, one end of the telescopic head stretches out of the mounting hole under the action of the spring and enables the first contact piece to be separated from the second contact piece, and the main shell is adsorbed on a cabinet body of the transformer substation and can push the telescopic head to retract into the mounting hole and enable the first contact piece to be abutted against the second contact piece.

4. The forced locking device of a transformer substation with an alarm function according to claim 3, wherein the alarm assembly further comprises an alarm chip, the alarm chip is in communication connection with the alarm units, the first contact piece and the second contact piece in any one of the alarm units are separated to enable the alarm chip to send out alarm signals, the communication assembly is arranged in the main shell, and the alarm chip is in communication connection with the communication assembly.

5. The forced locking device of a transformer substation with an alarm function according to claim 1, wherein the powerful electromagnets are provided with four corner positions distributed inside the main housing.

6. The transformer substation forced locking device with alarm function according to claim 1, wherein the power supply unit comprises a built-in battery installed inside the housing and a power cord for connecting an external power supply.

7. The forced locking device of a transformer substation with an alarm function according to claim 1, wherein a switch for controlling the electromagnet to be powered on or off is arranged inside the main casing.

8. The forced locking device for the transformer substation with the alarm function according to claim 1, wherein one end of the cover plate is connected with the main shell through a rotating shaft, and in a cover plate locking state, the rotating shaft is located inside the main shell.

9. The transformer substation forced locking device with an alarm function according to claim 1, wherein a lock nose is arranged on the main shell, a through hole matched with the lock nose is arranged on the cover plate, the lock nose can penetrate through the through hole, and the lockset is locked on the lock nose.

10. The transformer substation forced locking device with an alarm function according to claim 1, wherein a magnet mounting seat is arranged in the main shell, and the powerful electromagnet is fixed on the magnet mounting seat through a screw.