CN217427359U - A high-safety and error-proof high-voltage switch cabinet - Google Patents

Abstract

The utility model provides a high safety prevents mistake type high tension switchgear belongs to the technical field of power supply facility. The utility model discloses a set up the electric drive subassembly of taking the spring bolt on the cabinet door, be provided with the lockhole that corresponds with the spring bolt on the door frame of the cabinet body, and simultaneously, the electric drive subassembly disposes the low pressure power supply line of independent arrangement, and the low pressure power supply line is connected with the control switch electricity that sets up outside the computer lab, thereby make the spring bolt can lock cabinet door locking or unblock under control switch's effect, thereby make follow-up when high tension switchgear is patrolled and examined with electricity, can lock the cabinet door, prevent that the maintainer from touching the handle on the cabinet door by mistake and leading to the cabinet door accident to open the electric shock risk of bringing in the in-process of walking, and when overhauing, can cut off the inside high-tension electricity of high tension switchgear earlier, the cabinet door is opened to the spring bolt again, at last also cut off the low voltage power supply line, make the maintainer work under the complete uncharged condition, the electric shock risk has been eliminated, the security has been improved.

Description

A high-safety and error-proof high-voltage switch cabinet

technical field

The utility model relates to the technical field of power supply facilities, in particular to a high-safety error-proof high-voltage switch cabinet.

Background technique

High-voltage switchgear is commonly used in power stations, substations, industrial power supply and residential power supply, and is widely used. However, due to special factors such as high-voltage power supply in its use environment, improving its safety protection performance is the focus of current industry research. .

At present, the high-voltage switchgear on the market mainly includes a bus bar room, a circuit breaker room and a cable room. The external power supply lines are introduced into the bus bar room, and the external power lines are led out from the cable room. Conductive electrical structure, used as a safety structure. However, since the cabinet itself is used as a power supply device, and the door frame of the cabinet is locked through the cabinet door, in addition, during operation and maintenance, the maintenance personnel walk between the various power supply devices, such as accidentally touching the handle of the cabinet door , There is a risk of accidental opening of the cabinet door. If there is electricity in the cabinet, the risk of accidental electric shock is high and there is a potential safety hazard.

SUMMARY OF THE INVENTION

In view of the above problems existing in the prior art, it is now an object to provide a high-safety error-proof high-voltage switchgear, in which a lock tongue is provided on the door frame facing the cabinet body, and the lock tongue is driven by an electric component, so that the lock The tongue can selectively lock or open the cabinet door. At the same time, the electric drive component is independently provided with a low-voltage power supply line, and the control switch of the low-voltage power supply line is set outside the machine room, so that the locking and opening and closing of the cabinet door is not affected by whether the cabinet is installed or not. The influence of high-voltage electricity can be locked or unlocked even when the cabinet is not electrified, so as to prevent the maintenance personnel from accidentally touching the handle of the cabinet door and accidentally opening the cabinet door during the subsequent live inspection. When the cabinet door needs to be opened for maintenance, the power supply of the high-voltage switch cabinet can be disconnected first, and then the electric drive assembly can be controlled to open the cabinet door through the control switch, and the low-voltage power supply line of the electric drive assembly can be cut off after the cabinet door is opened. It can ensure that the maintenance personnel work in a non-energized environment, prevent the risk of accidental electric shock, and have higher security.

The specific technical solutions are as follows:

A high-safety and error-proof high-voltage switch cabinet includes a cabinet body and a cabinet door. The cabinet body is provided with a busbar room, a circuit breaker room and a cable room, and the cabinet door is arranged on the door frame of the cabinet body. The cable compartment can be opened or closed, and it has such characteristics. It also includes a lock tongue, an electric drive assembly, a control switch and a low-voltage power supply line. At the same time, an electric drive assembly is arranged in the cabinet door, one end of the lock tongue extends into the expansion hole, the other end of the lock tongue is connected with the electric drive assembly, the electric drive assembly is electrically connected to the low-voltage power supply line, and the low-voltage power supply line is independently wired and connected. Extending out of the cabinet door, the control switch is arranged outside the machine room and on the low-voltage power supply line, and at the same time, a permanent magnet is arranged on the cabinet door and/or the door frame.

The above-mentioned high-safety and error-proof high-voltage switch cabinet, wherein the electric drive assembly includes a sliding plate, a sliding block, a guide rail and a driving motor, the sliding plate and the guide rail are arranged along the direction of the connection line between the lock hole and the telescopic hole, and the bottom of the sliding plate is provided with There is a sliding block, the sliding block is slidably arranged on the guide rail, the driving motor is fixed on the cabinet door and is electrically connected with the low-voltage power supply line, and at the same time, the driving motor is connected with the power supply of the sliding plate.

The above-mentioned high-safety and error-proof high-voltage switch cabinet, wherein a gear and a rack are arranged between the drive motor and the slide plate, the rack is arranged parallel to the guide rail and fixed on the slide plate, and the gear is installed on the drive shaft of the drive motor, And the gear meshes with the rack.

The above-mentioned high-safety and error-proof high-voltage switch cabinet further includes a fixing frame, one side of the fixing frame is arranged in an "L" shape, and one end of the fixing frame is installed on the cabinet door and locked by threaded fasteners. , the other end of the fixed frame extends along the arrangement direction of the guide rail, and the guide rail is installed on the fixed frame.

In the above-mentioned high-safety and error-proof high-voltage switch cabinet, the driving motor is a self-locking motor.

The above-mentioned high-safety and error-proof high-voltage switch cabinet, wherein the control switch includes a base plate, two groups of contacts and a conductive rod group, and,

Two hinge seats are arranged at intervals in the middle of the bottom plate;

The conductive rod group includes two conductive bars and an insulating handle. The insulating handle is a "T"-shaped structure. The two conductive bars are arranged in parallel and spaced apart. The other ends of the motor are respectively hinged on the hinge seat, and at the same time, the positive and negative poles of the driving motor are electrically connected to the two conductive strips respectively;

Two sets of contacts are arranged on the bottom plate and are located at both ends of the bottom plate, each set of contacts includes a positive contact and a negative contact, when the conductive rod group is swayed on the bottom plate, the two conductive bars The positive and negative contacts of one of the two sets of contacts are in contact, and the positive and negative contacts of the two sets of contacts are arranged symmetrically in the center. At the same time, the positive contacts of each set of contacts The contacts are all electrically connected to the positive and negative poles of the external power supply line, respectively.

The above-mentioned high-safety and error-proof high-voltage switch cabinet further includes a protective cover, the protective cover is covered on the bottom plate, and a sliding groove is opened on the protective cover, and the arrangement direction of the sliding grooves is two groups. The connection direction of the contacts.

The above-mentioned high-safety and error-proof high-voltage switchgear, wherein a reinforcement block is arranged on the door frame and at the position where the lock hole is opened, and the reinforcement block is arranged in a ring shape, and the reinforcement block is arranged outside the lock hole and is welded with the door frame. connect.

The above-mentioned high-safety and error-proof high-voltage switch cabinet, wherein a quick-release interface is arranged on the side of the cabinet body, and a low-voltage power supply line extending from the cabinet door extends into the cabinet and is electrically connected with the quick-release interface. A quick release plug corresponding to the quick release interface is electrically connected.

In the above-mentioned high-safety and error-proof high-voltage switch cabinet, a fuse is electrically connected to the low-voltage power supply line.

The positive effects of the above technical solutions are:

The above-mentioned high-safety and error-proof high-voltage switch cabinet is provided with a lock tongue and an electric drive assembly between the cabinet body and the cabinet door, and the electric drive assembly is electrically connected to the low-voltage power supply line with independent wiring, and at the same time, the low-voltage power supply line is connected to the cabinet door. The control switch located outside the machine room is electrically connected, so that the lock tongue can selectively lock or open the cabinet door under the action of the control switch, which can prevent the maintenance personnel from accidentally touching the handle of the cabinet door during the subsequent live inspection. The problem of accidentally opening the cabinet door is always to maintain the locked state of the cabinet door, and the independently wired low-voltage power supply line and the control switch set outside the equipment room are not affected by whether the high-voltage switch cabinet is powered with high-voltage electricity. When the cabinet door needs to be opened for maintenance, the power supply of the high-voltage switch cabinet can be disconnected first, and then the electric drive assembly can be controlled to open the cabinet door through the control switch, and the low-voltage power supply line of the electric drive assembly can be cut off after the cabinet door is opened, so as to ensure that the maintenance personnel are in the Working in an uncharged environment eliminates the hidden danger of accidental electric shock and improves safety.

Description of drawings

1 is a structural diagram of an embodiment of a high-safety and error-proof high-voltage switchgear of the present invention;

Fig. 2 is the installation schematic diagram of the lock tongue and the electric drive assembly of a preferred embodiment of the present invention;

3 is a structural diagram of a control switch according to a preferred embodiment of the present invention.

In the drawings: 1. Cabinet body; 11. Door frame; 12. Quick release interface; 111. Lock hole; 112. Reinforcing block; 2. Cabinet door; 21. Telescopic hole; 3. Lock tongue; 41, slide plate; 42, slider; 43, guide rail; 44, drive motor; 45, gear; 46, rack; 47, fixed frame; 5, control switch; 51, bottom plate; 54, positive contact; 55, negative contact; 56, protective cover; 511, hinge seat; 561, sliding slot; 6, permanent magnet.

Detailed ways

In order to make the technical means, creative features, goals and effects realized by the present utility model easy to understand, the following embodiments will specifically describe the technical solutions provided by the present utility model in conjunction with accompanying drawings 1 to 3, but the following contents are not regarded as the present utility model. New restrictions.

FIG. 1 is a structural diagram of an embodiment of a high-safety and error-proof high-voltage switchgear of the present invention; FIG. 2 is a schematic diagram of the installation of a lock tongue and an electric drive assembly of a preferred embodiment of the present invention. As shown in FIG. 1 and FIG. 2 , the high-safety error-proof high-voltage switchgear provided in this embodiment includes: a cabinet body 1 and a cabinet door 2 . The cabinet body 1 is provided with a busbar room, a circuit breaker room, and a cable room. At the same time, One side of the cabinet door 2 is hinged to one side of the door frame 11 of the cabinet body 1, and the busbar room, circuit breaker room and cable room are opened or closed by turning the cabinet door 2, so as to realize the foundation of the high-voltage switch cabinet. protection.

Specifically, between the cabinet body 1 and the cabinet door 2, a lock tongue 3, an electric drive assembly 4, a control switch 5 and a low-voltage power supply line are arranged. At this time, one side of the door frame 11 is provided with a lock hole 111, and the cabinet door 2 is provided with a telescopic hole 21 corresponding to the lock hole 111, that is, the lock hole 111 and the telescopic hole 21 are at the same level and are at the same level when the cabinet door 2 is closed. On the same straight line, conditions are provided for the lock tongue 3 to move between the lock hole 111 and the telescopic hole 21 to achieve locking and unlocking. At the same time, an electric drive assembly 4 is arranged in the cabinet door 2, one end of the lock tongue 3 extends into the telescopic hole 21, and the other end of the lock tongue 3 is connected with the electric drive assembly 4, so that the electric drive assembly 4 can drive the lock tongue 3 to extend Or retracted to the telescopic hole 21, which provides conditions for subsequent automatic locking and unlocking. In addition, the electric drive assembly 4 is electrically connected to the low-voltage power supply line, and the electric power is provided for the electric drive assembly 4 through the low-voltage power supply line, and the low-voltage power supply line is independently wired and extends out of the cabinet door 2, and the control switch 5 is arranged outside the machine room And it is arranged on the low-voltage power supply line, so that the electric energy of the electric drive assembly 4 is separated from the high-voltage working electric energy inside the high-voltage switchgear, so that the action of the electric drive assembly is not affected by whether there is high-voltage inside the high-voltage switchgear. The control of the control switch 5 can maintain the lock of the cabinet door 2 when the cabinet is live, avoiding the risk of electric shock after the cabinet door 2 is opened when the maintenance personnel accidentally touch the handle on the cabinet door 2 during live inspection. , and when it needs to be powered off for maintenance, the high-voltage power in the cabinet can be cut off first, and then the electric drive assembly 4 is controlled by the control switch 5 to open the cabinet door 2, and the low-voltage power supply line is cut off after the cabinet door 2 is opened to ensure maintenance. Personnel work in a completely uncharged environment, eliminating the hidden danger of accidental electric shock and ensuring higher safety. At the same time, the cabinet door 2 and/or the door frame 11 are provided with permanent magnets 6, that is, the permanent magnets 6 on the cabinet door 2 and/or the door frame 11 can make the cabinet door 2 and the door frame 11 attract each other when they are close to each other, ensuring that The lock hole 111 and the telescopic hole 21 can be aligned, thereby avoiding the problem of misalignment and jamming when the lock tongue 3 is inserted into the lock hole 111 by remotely controlling the control switch 5, and the structure design is more reasonable.

More specifically, the electric drive assembly 4 disposed on the cabinet door 2 further includes a sliding plate 41 , a sliding block 42 , a guide rail 43 and a driving motor 44 . The direction of the connection line is arranged, one end of the sliding plate 41 is connected to the locking tongue 3, the bottom of the sliding plate 41 is provided with a sliding block 42, and the sliding block 42 is slidably arranged on the guide rail 43, so that the sliding block 41 can reciprocate on the guide rail 43 through the sliding block 42 Move, so that the lock tongue 3 can move along the arrangement direction of the guide rail 43 , so as to achieve the purpose of extending into the locking hole 111 or exiting the locking hole 111 . In addition, the drive motor 44 is fixed on the cabinet door 2 and is electrically connected to the low-voltage power supply line. At the same time, the drive motor 44 is powered with the sliding plate 41, that is, the low-voltage power supply line provides the drive motor 44 with electrical energy required for operation, and through the drive motor 44 The sliding plate 41 is driven to move, so as to control the movement of the lock tongue 3 .

More specifically, a gear 45 and a rack 46 are arranged between the drive motor 44 and the sliding plate 41 . At this time, the rack 46 is arranged parallel to the guide rail 43 and fixed on the sliding plate 41 , so that the moving direction of the rack 46 is consistent with the guide rail 43 At the same time, the gear 45 is installed on the drive shaft of the drive motor 44, and the gear 45 is meshed with the rack 46, so that when the drive motor 44 drives the gear 45 to rotate, the gear 45 can drive the rack 46 to move along the arrangement direction of the guide rail 43 , so as to meet the needs of automatic unlocking or locking.

More specifically, the electric drive assembly 4 further includes a fixing frame 47 , and is mounted on the cabinet door 2 through the fixing frame 47 . At this time, one side of the fixing frame 47 is arranged in an "L" shape, so that the fixing frame 47 has two installation surfaces arranged perpendicular to each other, and one end of the fixing frame 47 is installed on the cabinet door 2 and locked by threaded fasteners. The other end of the fixing frame 47 extends along the arrangement direction of the guide rail 43. The guide rail 43 is installed on the fixing frame 47, that is, one of the two mutually perpendicular installation surfaces of the fixing frame 47 is installed on the cabinet door 2, and the other is installed on the cabinet door 2. One side of the mounting surface is used for mounting the guide rail 43 , which better satisfies the use requirement of mounting the electric drive assembly 4 on the cabinet door 2 .

More specifically, the drive motor 44 in the electric drive assembly 4 is a self-locking motor, which can maintain a self-locking state after a power failure, thereby preventing the problem of unlocking and locking failure caused by incorrect movement of the lock tongue 3, and the structural design is more reasonable.

3 is a structural diagram of a control switch according to a preferred embodiment of the present invention. As shown in FIG. 3 , the control switch 5 includes a base plate 51 , two sets of contacts and a set of conductive rods. Wherein, the bottom plate 51 is used as a general installation carrier, and is installed at an appropriate position outside the equipment room, such as an electric control box on the wall, so as to realize the installation of the control switch 5 . Wherein, two hinge seats 511 are arranged at intervals in the middle of the bottom plate 51 , and conditions are provided by the two hinge seats 511 for the installation of subsequent conductive rod groups. In addition, the conductive rod group includes two conductive bars 52 and an insulating handle 53. At this time, the insulating handle 53 has a "T"-shaped structure. At both ends of the insulating handle 53, that is, the two conductive bars 52 and the insulating handle 53 form an approximately "Y"-shaped structure. The upper deflection of the hinged seat 511 of the conductive strip 52 is controlled by the insulating handle 53, which provides conditions for subsequent circuit reversal or circuit disconnection. At the same time, the positive and negative poles of the driving motor 44 are respectively electrically connected to the two conductive strips 52 , that is, the conductive strips 52 are deflected and contact the contacts of the two sets of contacts to provide electrical energy for the operation of the driving motor 44 .

In addition, the two sets of contacts are disposed on the bottom plate 51 and are located at both ends of the bottom plate 51 respectively, that is, the two sets of contacts are respectively located at both ends of the conductive rod group, so that the maintenance personnel can selectively contact the conductive rod group with one of them. Point connection to achieve circuit conduction. In addition, each group of contacts includes a positive contact 54 and a negative contact 55. When the conductive rod group is swayed on the bottom plate 51, the two conductive bars 52 are respectively connected to one of the two groups of contacts. The positive contact 54 and the negative contact 55 are in contact with each other, and the positive contact 54 and the negative contact 55 of the two sets of contacts are arranged symmetrically in the center, so that after the conductive rod group contacts the two sets of contacts, the driving motor 44 The rotation direction can be reversed, so as to realize the extension or retraction movement of the lock tongue 3, and realize the locking and unlocking of the cabinet door 2, and when the conductive rod group does not contact the two groups of contacts, the driving motor 44 is in a power-off state , which can make the high-voltage switch cabinet completely uncharged after the high-voltage power in the high-voltage switch cabinet is cut off, which is beneficial to the safe work of the maintenance personnel. At the same time, the positive contacts 54 in each group of contacts are respectively electrically connected to the positive and negative poles of the external power supply line, so as to realize the conduction with the external circuit. It is worth pointing out that the external power supply line is a low-voltage line, which meets the needs of use. Yes, it is more secure.

More specifically, the bottom plate 51 is also provided with a non-slip cover. At this time, the protective cover 56 is covered on the bottom plate 51 to realize the isolation protection of the conductive rod group and the two groups of contacts on the bottom plate 51, and the safety is higher. In addition, a sliding groove 561 is provided on the protective cover 56, and the arrangement direction of the sliding groove 561 is the connecting direction of the two sets of contacts, so that the insulating handle 53 can be partially extended from the sliding groove 561, which is convenient for maintenance personnel. It also meets the travel requirements when the conductive rod group is turned over.

More specifically, the door frame 11 is provided with a reinforcing block 112 at the position where the lock hole 111 is opened. At the same time, the reinforcing block 112 is arranged in a ring shape, and the reinforcing block 112 is arranged around the lock hole 111 and is connected to the door frame 11 by welding. The structural strength of the door frame 11 at the cabinet door 2 is enhanced by the reinforcing block 112, the problem of jamming of the lock hole 111 after deformation is prevented, and the structural design is more reasonable.

More specifically, the side of the cabinet body 1 is provided with a quick release interface 12, and the low-voltage power supply line extending from the cabinet door 2 extends into the cabinet body 1 and is electrically connected with the quick release interface 12. In addition, the control switch 5 A quick-release plug corresponding to the quick-release interface 12 is electrically connected. Through the cooperation of the quick-release interface 12 and the quick-release plug, the plug connection of the power supply line is realized, the structure is more flexible, and the disassembly and assembly are more convenient.

More specifically, a fuse is also electrically connected to the low-voltage power supply line. At this time, the fuse can be a fuse, which can be automatically blown in the event of a short circuit or other abnormal power consumption, so as to realize the electrical components such as the drive motor 44 and the control switch 5. protection, higher security.

The high-safety error-proof high-voltage switch cabinet provided in this embodiment includes a cabinet body 1 and a cabinet door 2; by arranging an electric drive assembly 4 with a latch 3 on the cabinet door 2, the door frame 11 of the cabinet body 1 is provided with a The lock tongue 3 corresponds to the lock hole 111, and at the same time, the electric drive assembly 4 is equipped with an independently arranged low-voltage power supply line, and the low-voltage power supply line is electrically connected to the control switch 5 outside the machine room, so that the lock tongue 3 can be in the control switch 5. Under the action, the cabinet door 2 is locked or unlocked, so that the cabinet door 2 can be locked during the subsequent live inspection of the high-voltage switchgear, so as to prevent the maintenance personnel from accidentally touching the handle on the cabinet door 2 during the process of walking and causing the cabinet door 2 The risk of electric shock caused by accidental opening, and during maintenance, the high-voltage power inside the high-voltage switch cabinet can be cut off first, then the lock tongue 3 can be controlled to open the cabinet door 2, and finally the low-voltage power supply line is also cut off, so that the maintenance personnel are completely dead. work without the risk of electric shock and improve safety.

The above are only the preferred embodiments of the present utility model, and are not intended to limit the embodiments and protection scope of the present utility model. Those skilled in the art should be able to realize that any changes made by using the contents of the description and illustrations of the present utility model The solutions obtained from equivalent replacements and obvious changes shall all be included in the protection scope of the present invention.

Claims (10)

1. A high-safety anti-misoperation high-voltage switch cabinet comprises a cabinet body and a cabinet door, wherein a bus chamber, a breaker chamber and a cable chamber are arranged in the cabinet body, the cabinet door is arranged on a door frame of the cabinet body and is used for opening or closing the bus chamber, the breaker chamber and the cable chamber, the high-safety anti-misoperation high-voltage switch cabinet is characterized by also comprising a spring bolt, an electric drive assembly, a control switch and a low-voltage power supply line, a lock hole is formed in one side of the door frame, a telescopic hole corresponding to the lock hole is formed in the cabinet door, the electric drive assembly is arranged in the cabinet door, one end of the spring bolt extends into the telescopic hole, the other end of the spring bolt is connected with the electric drive assembly, the electric drive assembly is electrically connected to the low-voltage power supply line, the low-voltage power supply line is independently wired and extends out of the cabinet door, the control switch is arranged outside the machine room and is arranged on the low-voltage power supply line, meanwhile, permanent magnets are arranged on the cabinet door and/or the door frame.

2. The high-safety anti-misoperation high-voltage switch cabinet according to claim 1, wherein the electric driving assembly comprises a sliding plate, a sliding block, a guide rail and a driving motor, the sliding plate and the guide rail are arranged along the direction of a connecting line of the lock hole and the telescopic hole, the sliding block is arranged at the bottom of the sliding plate and is slidably arranged on the guide rail, the driving motor is fixed on the cabinet door and is electrically connected with the low-voltage power supply line, and meanwhile, the driving motor is in power connection with the sliding plate.

3. The high-safety error-prevention high-voltage switch cabinet according to claim 2, wherein a gear and a rack are arranged between the driving motor and the sliding plate, the rack is arranged parallel to the guide rail and fixed on the sliding plate, the gear is mounted on a driving shaft of the driving motor, and the gear is meshed with the rack.

4. The high-safety anti-misoperation type high-voltage switch cabinet according to claim 2 or 3, further comprising a fixing frame, wherein one side surface of the fixing frame is arranged in an L shape, one end of the fixing frame is installed on the cabinet door and locked by a threaded fastener, the other end of the fixing frame extends along the arrangement direction of the guide rail, and the guide rail is installed on the fixing frame.

5. The high-safety anti-misoperation high-voltage switch cabinet according to claim 2 or 3, wherein the driving motor is a self-locking motor.

6. The high-safety anti-misoperation high-voltage switch cabinet according to claim 2, wherein the control switch comprises a bottom plate, two sets of contacts and a conductive rod set, and,

two hinged seats are arranged in the middle of the bottom plate at intervals;

the conducting bar group comprises two conducting bars and an insulating handle, the insulating handle is of a T-shaped structure, the two conducting bars are arranged in parallel at intervals, one ends of the two conducting bars are fixedly installed at two ends of the insulating handle respectively, the other ends of the two conducting bars are hinged to the hinging seats respectively, and meanwhile, the positive electrode and the negative electrode of the driving motor are electrically connected with the two conducting bars respectively;

two sets of the contact all set up in just be located respectively on the bottom plate the both ends of bottom plate, every group the contact all includes a positive contact and a negative pole contact when conducting rod group beat on the bottom plate, two the busbar respectively with two sets of one of them in the contact the positive contact with the negative pole contact contacts, and, two sets of in the contact the positive contact with the negative pole contact is central symmetry and arranges, simultaneously, every group in the contact the positive contact is equallyd divide and is do not be connected with the anodal and the negative pole electricity of outside power supply line.

7. The high-safety anti-misoperation high-voltage switch cabinet according to claim 6, further comprising a protective cover, wherein the protective cover is arranged on the bottom plate, a sliding groove is formed in the protective cover, and the arrangement direction of the sliding groove is the connecting line direction of the two groups of contacts.

8. The high-safety anti-misoperation high-voltage switch cabinet according to claim 1, wherein a reinforcing block is arranged on the door frame at a position where the lock hole is formed, the reinforcing block is arranged in a ring shape, and the reinforcing block is wound outside the lock hole and is welded to the door frame.

9. The high-safety high-voltage switch cabinet with the fault-prevention function according to claim 1, wherein a quick-release interface is arranged on a side portion of the cabinet body, the low-voltage power supply circuit extending out of the cabinet door extends into the cabinet body and is electrically connected with the quick-release interface, and the control switch is electrically connected with a quick-release plug corresponding to the quick-release interface.

10. The high-safety anti-misoperation high-voltage switch cabinet according to claim 1, wherein a fuse is electrically connected in the low-voltage power supply line.

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