Anti-electric shock protection device of high-voltage switch cabinet

Abstract

A high-voltage switch cabinet anti-electric shock protection device disclosed by the present invention comprises a high-voltage switch cabinet body, a group of limiting assemblies are symmetrically arranged on the side of the high-voltage switch cabinet body, a movable frame is clamped at the front end in the high-voltage switch cabinet body, and a plurality of protection mechanisms are arranged on the surface of the movable frame. And a plurality of electric brakes are arranged behind the plurality of protection mechanisms. The limiting clamp is clamped on the outer side of the electric brake handle, workers are effectively prevented from making direct contact with the electric brake, the electric shock risk is reduced, when the on-off state of the electric brake needs to be adjusted, the handle is held to drive the limiting clamp and the sliding plate to move up and down, the electric brake handle is pulled to open and close the electric brake, and the conductive plate is attached to the limiting clamp all the time without external force interference; when an electric leakage phenomenon occurs, current is effectively conducted to the current-conducting plate, the display lamp is lightened through the wire, at the moment, a worker can know danger and can wear insulating gloves for operation, and the current-conducting plate provides an adjustable space for opening the limiting clamp through an elastic structure formed by the vertical spring and the sliding plate.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage switch cabinet protection devices, in particular to a high-voltage switch cabinet anti-electric shock protection device. Background Art

[0002] High-voltage switchgear refers to the switchgear used for power generation, transmission, distribution, power conversion and consumption in the power system. When the high-voltage switchgear is opened for maintenance, in order to prevent maintenance personnel from getting electric shock, an anti-electric shock protection device is often installed on the high-voltage switchgear.

[0003] Patent No. CN217182757U discloses an anti-electric shock protection device for a high-voltage switch cabinet in a coal mine, including a cabinet; a fixed plate is fixedly installed in the middle of the inner wall on the rear side of the cabinet, and electric switches are symmetrically installed on the left and right sides of the front end of the fixed plate, and servo motors are symmetrically installed on the left and right sides of the cabinet, and the motor shaft of the servo motor passes through the cabinet and is fixedly connected to the rotating rod, the rotating rod is fixedly connected to the middle of the outer side of the rotating block, and the inner side of the rotating block is fixedly connected to the handle of the electric switch, a controller is provided at the lower end of the left side of the cabinet, and an air pump is fixedly installed in the middle of the upper surface of the cabinet. The utility model combines the servo motor, the rotating rod and the rotating block, so that the staff can control the handle to open and close the electric switch without opening the cabinet, and the air in the cabinet can be extracted by combining the air pump and the air extraction pipe to avoid the presence of flammable and explosive gases in the cabinet air, and the safety factor is high.

[0004] However, the above-mentioned anti-electric shock protection device for high-voltage switch cabinet in coal mines still has the following shortcomings:

[0005] Although the above device can control the handle to open and close the switch without opening the cabinet through the combination of the servo motor, the rotating rod and the rotating block, the servo motor is used to control the switch. Electricity is required. Once a power outage occurs, the staff cannot open or close the switch. For this reason, we propose a high-voltage switch cabinet anti-electric shock protection device. Summary of the invention

[0006] The object of the present invention is to provide a high-voltage switch cabinet anti-electric shock protection device to solve the problem that although the above-mentioned device proposed in the above-mentioned background technology can control the handle to open and close the electric switch without opening the cabinet body through the combination of a servo motor, a rotating rod and a rotating block, the use of a servo motor to control the electric switch requires the use of electricity. Once a power outage occurs, the staff cannot open or close the electric switch.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-voltage switch cabinet anti-electric shock protection device, comprising a high-voltage switch cabinet body, a group of limit assemblies are symmetrically arranged on the side of the high-voltage switch cabinet body, a movable frame is engaged with the front end of the high-voltage switch cabinet body, a plurality of protective mechanisms are arranged on the surface of the movable frame, and a plurality of electric switches are arranged behind the plurality of protective mechanisms;

[0008] The protective mechanism includes a slide plate, which is attached to the surface of the movable frame, a group of T-shaped sliding bars are fixedly connected to both sides of the rear end of the slide plate, a limit clamp is provided in the middle of the slide plate, a group of L-shaped bars are symmetrically fixedly connected to both sides of the limit clamp, a handle is fixedly connected to the surface of the L-shaped bar, a group of conductive plates are symmetrically attached to the upper and lower surfaces of the limit clamp, a group of vertical springs are provided on the side of the conductive plate away from the limit clamp, and a display light is provided on one side of the surface of the slide plate.

[0009] Preferably, the limit clamp is clamped on the outside of the switch handle, and the middle part of the longitudinal section of the clamp head of the limit clamp is rectangular, and the two ends are semicircular.

[0010] Preferably, the slide plate and the T-shaped slide bar are integrally formed, and the slide plate and the L-shaped bar are fixedly connected.

[0011] Preferably, the conductive plate forms an elastic structure with the slide plate through a vertical spring, and the conductive plate is connected to the display light through a wire.

[0012] Preferably, the limiting assembly includes a fixed slot frame, a group of the fixed slot frames are symmetrically fixed to the side of the high-voltage switch cabinet body, a clamping rod passes through the inside of the fixed slot frame, and a group of limiting ring frames are fixedly sleeved outside the clamping rod, and a transverse spring is connected to one side of the limiting ring frame.

[0013] Preferably, the clamping rod forms an elastic structure through a limiting ring frame, a transverse spring and a fixed groove frame, and the end of the clamping rod passes through the side of the high-voltage switch cabinet body and is clamped on the inner side of the movable frame.

[0014] Preferably, the movable frame includes a U-shaped frame, the U-shaped frame is arranged at the front end inside the high-voltage switch cabinet body, a plurality of slide grooves are opened on the surface of the U-shaped frame, a plurality of through holes are opened inside the U-shaped frame, and two groups of card slots are opened on both sides of the U-shaped frame.

[0015] Preferably, the T-shaped slide bar is engaged in the slide groove, and the slide groove, through hole and clamping groove are respectively formed integrally with the U-shaped frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention effectively prevents workers from directly contacting the switch and reducing the risk of electric shock by clamping the limit clamp on the outside of the switch handle. When the switch needs to be opened or closed, the handle is held to drive the limit clamp and the slide plate to move up and down, thereby pulling the switch handle to open or close the switch. The conductive plate always fits the limit clamp without external interference. When leakage occurs, the current is effectively transmitted to the conductive plate and the indicator light is lit through the wire. At this time, the staff will be aware of the danger and can wear insulating gloves to operate. The conductive plate provides an adjustable space for the opening of the limit clamp through the elastic structure composed of the vertical spring and the slide plate.

[0018] 2. In the present invention, when it is necessary to disassemble the movable frame to inspect the inside of the high-voltage switch cabinet body, the movable frame can be quickly disassembled by pulling the clamping rod outward so that the end of the clamping rod is separated from the inside of the movable frame. When installing the movable frame, the movable frame is clamped into the inside of the high-voltage switch cabinet body on the basis of pulling the clamping rod outward, and then the clamping rod is released. Under the influence of the rebound force of the lateral spring, the end of the clamping rod pops out and effectively engages with the side of the movable frame, thereby completing the rapid limit fixation of the movable frame.

[0019] 3. The setting of the slide groove in the present invention is used to limit the T-shaped slide bar, thereby improving the vertical movement stability of the T-shaped slide bar and the slide plate. The setting of the through hole can provide space for the limit clamp, which is convenient for connecting the limit clamp with the switch handle. The cooperation between the slot and the rod can realize the limitation of the entire movable frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a position limiting component of the present invention;

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0023] Figure 4 It is a structural schematic diagram of the movable frame of the present invention in a moved-out state;

[0024] Figure 5 It is a schematic diagram of the partial disassembled structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the protection mechanism of the present invention.

[0026] In the figure: 1. High-voltage switch cabinet body; 2. Limiting assembly; 3. Movable frame; 4. Protection mechanism; 5. Switch;

[0027] 201, fixed slot frame; 202, clamping rod; 203, limiting ring frame; 204, transverse spring;

[0028] 301, U-shaped frame; 302, slide groove; 303, through hole; 304, card slot;

[0029] 401. Slide plate; 402. T-shaped slide bar; 403. Limit clamp; 404. L-shaped bar; 405. Handle; 406. Conductive plate; 407. Vertical spring; 408. Display light. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6 The present invention provides a technical solution: a high-voltage switch cabinet anti-electric shock protection device, comprising a high-voltage switch cabinet body 1, a group of limit components 2 are symmetrically arranged on the side of the high-voltage switch cabinet body 1, a movable frame 3 is engaged with the front end of the high-voltage switch cabinet body 1, a plurality of protective mechanisms 4 are arranged on the surface of the movable frame 3, and a plurality of electric switches 5 are arranged behind the plurality of protective mechanisms 4;

[0032] The protection mechanism 4 includes a slide plate 401, which is attached to the surface of the movable frame 3. A group of T-shaped slide bars 402 are fixedly connected to both sides of the rear end of the slide plate 401. A limit clamp 403 is provided in the middle of the slide plate 401, wherein the limit clamp 403 is clamped on the outside of the handle of the switch 5. The middle part of the longitudinal section of the clamp head of the limit clamp 403 is rectangular, and the two ends are semicircular. A group of L-shaped rods 404 are symmetrically fixedly connected to both sides of the limit clamp 403. Further, the slide plate 401 and the T-shaped slide bar 402 are integrally formed. 401 is fixedly connected to the L-shaped rod 404, a handle 405 is fixedly connected to the surface of the L-shaped rod 404, a group of conductive plates 406 are symmetrically attached to the upper and lower surfaces of the limit clamp 403, a group of vertical springs 407 are provided on the side of the conductive plate 406 away from the limit clamp 403, and a display light 408 is provided on one side of the surface of the slide plate 401. Furthermore, the conductive plate 406 forms an elastic structure with the slide plate 401 through the vertical spring 407, and the conductive plate 406 is connected to the display light 408 through a wire. The present invention effectively prevents workers from directly contacting the switch 5 and reduces the risk of electric shock by clamping the limit clamp 403 on the outside of the handle of the switch 5. When the switch 5 needs to be opened or closed, the handle 405 is held to drive the limit clamp 403 and the slide plate 401 to move up and down, thereby pulling the handle of the switch 5 to open or close the switch 5. In the absence of external interference, the conductive plate 406 always fits the limit clamp 403. When leakage occurs, the current is effectively transmitted to the conductive plate 406 and the display light 408 is lit through the wire. At this time, the worker will be aware of the danger and can wear insulating gloves to operate. The conductive plate 406 provides an adjustable space for the opening of the limit clamp 403 through the elastic structure formed by the vertical spring 407 and the slide plate 401.

[0033] The limiting assembly 2 includes a fixed slot frame 201, a group of fixed slot frames 201 are symmetrically fixed to the side of the high-voltage switch cabinet body 1, a clamping rod 202 passes through the inside of the fixed slot frame 201, and a group of limiting ring frames 203 are fixedly sleeved on the outside of the clamping rod 202, and a transverse spring 204 is connected to one side of the limiting ring frame 203, wherein the clamping rod 202 forms an elastic structure with the fixed slot frame 201 through the limiting ring frame 203 and the transverse spring 204, and the end of the clamping rod 202 passes through the side of the high-voltage switch cabinet body 1 and is clamped on the inner side of the movable frame 3. When it is necessary to disassemble the movable frame 3 to inspect the inside of the high-voltage switch cabinet body 1 in the present invention, the clamping rod 202 is pulled outward so that the end of the clamping rod 202 is separated from the inside of the movable frame 3, so that the movable frame 3 can be quickly disassembled. When installing the movable frame 3, the movable frame 3 is clamped into the inside of the high-voltage switch cabinet body 1 on the basis of pulling the clamping rod 202 outward, and then the clamping rod 202 is released. Under the influence of the rebound force of the transverse spring 204, the end of the clamping rod 202 pops out and effectively engages with the side of the movable frame 3, completing the rapid limit fixation of the movable frame 3.

[0034] The movable frame 3 includes a U-shaped frame 301, which is arranged at the front end of the high-voltage switch cabinet body 1, and a plurality of slide grooves 302 are provided on the surface of the U-shaped frame 301, a plurality of through holes 303 are provided inside the U-shaped frame 301, and two sets of card slots 304 are provided on both sides of the U-shaped frame 301, wherein a T-shaped slide bar 402 is engaged inside the slide groove 302, and the slide groove 302, through hole 303, and card slot 304 are respectively formed integrally with the U-shaped frame 301. The setting of the slide groove 302 in the present invention is used to limit the T-shaped slide bar 402, improve the vertical movement stability of the T-shaped slide bar 402 and the slide plate 401, the setting of the through hole 303 can provide space for the limit clip 403, and facilitate the connection between the limit clip 403 and the handle of the switch 5, and the cooperation between the card slot 304 and the card rod 202 can realize the limiting of the movable frame 3 as a whole.

[0035] Working principle: clamp the limit clamp 403 on the outside of the handle of the switch 5 to prevent the staff from directly contacting the switch 5 and reduce the risk of electric shock. When the switch 5 needs to be opened or closed, hold the handle 405 to drive the limit clamp 403 and the slide plate 401 to move up and down, thereby pulling the handle of the switch 5 to open and close the switch 5. The setting of the slide groove 302 is used to limit the T-shaped slide bar 402 to improve the vertical movement stability of the T-shaped slide bar 402 and the slide plate 401. In the absence of external interference, the conductive plate 406 always fits the limit clamp 403. When leakage occurs, the current is transmitted to the conductive plate 406 and the display light 408 is lit through the wire. At this time, the staff will be aware of the danger and can wear insulating gloves to operate. When the frame 3 is used to inspect the interior of the high-voltage switch cabinet body 1, the clamping rod 202 is pulled outward to make the end of the clamping rod 202 detach from the interior of the movable frame 3, so that the movable frame 3 can be quickly disassembled. The elastic structure formed by the conductive plate 406 and the slide plate 401 through the vertical spring 407 provides an adjustable space for the opening of the limit clamp 403. After opening the limit clamp 403, the limit clamp 403 can be separated from the handle of the switch 5. When the movable frame 3 is installed later, the movable frame 3 is clamped into the interior of the high-voltage switch cabinet body 1 on the basis of pulling the clamping rod 202 outward, and then the clamping rod 202 is released. Under the influence of the rebound force of the transverse spring 204, the end of the clamping rod 202 pops out and engages with the side of the movable frame 3, completing the rapid limit fixation of the movable frame 3.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage switch cabinet protection device against electric shock, comprising a high-voltage switch cabinet body (1), characterized in that: A group of limiter components (2) are symmetrically arranged on the side of the high-voltage switch cabinet body (1); a movable frame (3) is engaged at the front end of the interior of the high-voltage switch cabinet body (1); a plurality of protective mechanisms (4) are arranged on the surface of the movable frame (3); and a plurality of electric switches (5) are arranged behind the plurality of protective mechanisms (4); The protection mechanism (4) comprises a slide plate (401), the slide plate (401) is attached to the surface of the movable frame (3), a group of T-shaped slide bars (402) are fixedly connected to both sides of the rear end of the slide plate (401), a limit clamp (403) is provided in the middle of the slide plate (401), a group of L-shaped bars (404) are symmetrically fixedly connected to both sides of the limit clamp (403), a handle (405) is fixedly connected to the surface of the L-shaped bar (404), a group of conductive plates (406) are symmetrically attached to the upper and lower surfaces of the limit clamp (403), a group of vertical springs (407) are provided on the side of the conductive plate (406) away from the limit clamp (403), and a display light (408) is provided on one side of the surface of the slide plate (401).

2. A high voltage switch cabinet anti-electric shock protection device according to claim 1, characterized in that: The limit clamp (403) is clamped on the outside of the switch (5) handle, and the middle part of the clamp head of the limit clamp (403) is rectangular, and the two ends are semicircular.

3. A high voltage switch cabinet anti-electric shock protection device according to claim 1, characterized in that: The slide plate (401) and the T-shaped slide bar (402) are integrally formed, and the slide plate (401) and the L-shaped bar (404) are fixedly connected.

4. A high voltage switch cabinet anti-electric shock protection device according to claim 1, characterized in that: The conductive plate (406) forms an elastic structure with the slide plate (401) via a vertical spring (407), and the conductive plate (406) is connected to a display light (408) via a wire.

5. The high-voltage switch cabinet anti-electric shock protection device according to claim 1 is characterized in that: The limiting assembly (2) comprises a fixed slot frame (201), a group of the fixed slot frames (201) are symmetrically fixed to the side of the high-voltage switch cabinet body (1) in the upper and lower directions, a clamping rod (202) passes through the inside of the fixed slot frame (201), and a group of limiting ring frames (203) are fixedly sleeved on the outside of the clamping rod (202), and a transverse spring (204) is connected to one side of the limiting ring frame (203).

6. A high-voltage switch cabinet anti-electric shock protection device according to claim 5, characterized in that: The clamping rod (202) forms an elastic structure through a limiting ring frame (203), a transverse spring (204) and a fixed slot frame (201); the end of the clamping rod (202) passes through the side of the high-voltage switch cabinet body (1) and is clamped on the inner side of the movable frame (3).

7. A high voltage switch cabinet anti-electric shock protection device according to claim 1, characterized in that: The movable frame (3) comprises a U-shaped frame (301), the U-shaped frame (301) is arranged at the front end inside the high-voltage switch cabinet body (1), a plurality of slide grooves (302) are provided on the surface of the U-shaped frame (301), a plurality of through holes (303) are provided inside the U-shaped frame (301), and two groups of card slots (304) are provided on both sides of the U-shaped frame (301).

8. A high-voltage switch cabinet anti-electric shock protection device according to claim 7, characterized in that: The T-shaped sliding rod (402) is engaged with the inside of the sliding groove (302), and the sliding groove (302), the through hole (303), and the clamping groove (304) are respectively formed integrally with the U-shaped frame (301).

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