Visual switch cabinet emergency opening remote control device and use method thereof

Abstract

The invention discloses a visual switch cabinet emergency opening remote control device and a use method thereof, and relates to the technical field of switch cabinet emergency opening, the visual switch cabinet emergency opening remote control device comprises an opening part, the opening part is installed on a cabinet door, the surface of the cabinet door is provided with an observation window, the opening part comprises a force application assembly, and the force application assembly is connected with the observation window. One end of the force application assembly is provided with a stretching assembly, one end of the stretching assembly is provided with a positioning assembly, the upper end of the positioning assembly is provided with a remote control assembly, and one end of the positioning assembly is provided with a protection assembly. The problems that when emergency opening is not needed, an extrusion rod is driven to press an emergency opening button, the pressing and rotating mode is likely to be accidentally touched by people, so that the power system is normally used due to misoperation when emergency opening is not needed, and operation is complex due to the fact that a protective cover needs to be opened and fixed when the power system is used after the protective cover is installed are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency opening of switch cabinets, and in particular to a visual remote control device for emergency opening of switch cabinets and a use method thereof. Background Art

[0002] Emergency tripping of switchgear refers to an operation in which, in an emergency, the current is quickly cut off by pressing the emergency tripping button on the switchgear to ensure the safety of personnel and equipment.

[0003] For example, the Chinese authorized patent with announcement number CN216957784U (a switch cabinet emergency trip device): includes a mounting shell, a pressing rod, a connecting frame, a push rod, an insulating rod, an adjustment mechanism and a connecting mechanism, the pressing rod passes through from one end of the mounting shell to the other end of the mounting shell, the connecting frame is arranged on the outside of the mounting shell, the push rod passes through from the inside of the connecting frame to one end of the connecting frame, the insulating rod is arranged at one end of the push rod, the adjustment mechanism is distributed on the inside and one end of the push rod, and the connecting mechanism is distributed on the top of the connecting frame and the top of the mounting shell. The utility model sets a connecting mechanism to push the pressing rod to make the insulating rod contact with the circuit breaker in the switch cabinet, thereby realizing the trip; after the trip, the positioning pin is pressed to make the torsion spring drive the turntable to recover, thereby recovering the connecting frame, which provides convenience for subsequent use; by setting an adjustment mechanism, the distance between the insulating rod and the circuit breaker in the switch cabinet is adjusted, thereby increasing the scope of application of the equipment.

[0004] Most of the existing emergency trip devices for switch cabinets use pressing and rotating methods to drive the extrusion rod to press the emergency trip button. The pressing and rotating methods are easy to be touched by mistake, resulting in erroneous operation when emergency trip is not needed, resulting in normal use of the power system. By installing a protective cover, it is also necessary to open the protective cover when using it, and then fix the protective cover before operating it, which is complicated to operate. For this reason, we provide a visual switch cabinet emergency trip remote control device and a method of using it. Summary of the invention

[0005] The purpose of the present invention is to provide a visual switch cabinet emergency trip remote control device and a method of using the same, so as to solve the problem that most of the existing switch cabinet emergency trip devices proposed in the above background technology drive the extrusion rod to press the emergency trip button by pressing and rotating, and the pressing and rotating method is easy to be accidentally touched by people, resulting in erroneous operation when emergency trip is not needed, resulting in normal use of the power system. By installing a protective cover, it is necessary to open the protective cover when using it, and then fix the protective cover before operating, which makes the operation complicated.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a visual switch cabinet emergency opening remote control device, comprising a opening part, which is installed on a cabinet door, and an observation window is provided on the surface of the cabinet door. The opening part comprises a force-applying component, and a stretching component is provided at one end of the force-applying component, and a positioning component is provided at one end of the stretching component. A remote control component is provided at the upper end of the positioning component, and the positioning component is connected to the stretching component through the remote control component. A protective component is provided at one end of the positioning component. A door groove is provided at the connection between the cabinet door and the opening part, and extension grooves are provided on the inner walls on both sides of the door groove, and the opening part moves in a direction through the door groove and the extension groove.

[0007] Preferably, the force-applying assembly comprises a movable seat, both side surfaces of the movable seat are provided with limiting plates that move along the extension groove, and the movable seat moves along the door groove, and one end of the movable seat is welded with the force-applying seat.

[0008] Preferably, the force-applying assembly further comprises a moving column, a transmission ball is arranged on one side of the moving column, a pushing column is arranged on one side of the transmission ball, and an arc extrusion head is arranged at one end of the pushing column.

[0009] Preferably, the stretching assembly includes a stretching plate, which is located between the moving column and the moving seat. A single-head fastener is provided at one end of the moving column, one end of the single-head fastener passes through the moving column and the stretching plate in sequence and is threadedly connected to the moving seat, and the other end of the single-head fastener is located in a protective groove on the surface of one end of the moving column.

[0010] Preferably, a first compression spring is provided on one side of one end of the stretching plate, and a second compression spring is provided on one side of the other end of the stretching plate, and both ends of the first compression spring and the second compression spring are respectively fixed to the stretching plate and the cabinet door by external bolts of the spring fixing seat.

[0011] Preferably, the positioning assembly includes a positioning sleeve, a movable groove is provided at the center of one end of the positioning sleeve, and the movable seat moves along the movable groove, movable openings for moving the stretching plate are provided above and below the movable groove, and limiting plate grooves for moving the limiting plate are provided on the inner walls on both sides of the movable groove, and the positioning sleeve is fixed to the fixing hole of the cabinet door through an external fastener of the fixing plate.

[0012] Preferably, a column groove is provided at the center of the other end of the positioning sleeve, and the column groove is interconnected with the movable groove, outer plate grooves are provided on the inner walls on both sides of the column groove, positioning outer plates are provided on both sides of the pushing column, and the pushing column and the positioning outer plate move along the column groove and the outer plate groove respectively.

[0013] Preferably, the protection assembly comprises a protection plate, a through slot for pushing the column to move is arranged at the center of the protection plate, and both ends of the protection plate are fixed to the positioning sleeve by screws.

[0014] Preferably, the remote control assembly includes an electric push rod, which is fixed to the positioning sleeve through a rod fixing seat, a wireless remote control receiver is provided at one end of the electric push rod, and the wireless remote control receiver is wirelessly connected to the remote control, and the output end of the electric push rod is fixed to the stretching plate through an external fastener of the push rod fixing plate.

[0015] Preferably, a method for using a visual switch cabinet emergency opening remote control device comprises the following steps:

[0016] Step 1: Pass the moving seat and the limiting plate through the door slot and one end of the extension slot respectively, and pass the moving seat and the limiting plate out to the rear of the cabinet door. Then use one end of the single-head fastener to pass through the moving column and the stretching plate in sequence and thread the moving seat to fix the moving column, the stretching plate and the moving seat in sequence.

[0017] Step 2: The two ends of the first compression spring and the second compression spring are fixed to the stretch plate and the cabinet door respectively using the external bolts of the spring fixing seat. After fixing, insert the transmission ball and the push column into the column groove. When the push column is inserted, the positioning outer plate is inserted into the outer plate groove, and the transmission ball is located between the moving column and the pushing column. The positioning sleeve is placed on the outside of the moving seat, and the limit plate is inserted into the limit plate groove. The positioning sleeve is fixed to the fixing hole of the cabinet door using the external fasteners of the fixing plate;

[0018] Step 3: The electric push rod is fixed with the positioning sleeve using the external fasteners of the rod fixing seat, and the output end of the electric push rod is fixed with the tension plate using the external fasteners of the push rod fixing plate;

[0019] Step 4: When emergency opening is required, use the remote control to remotely transmit the signal to the wireless remote control receiver to start the electric push rod, squeeze the stretching plate, and the moving seat is forced to move along the door groove toward the front of the cabinet door. After moving to the maximum distance, the electric push rod is quickly retracted. After the stretching plate loses pressure, the first compression spring and the second compression spring rebound to drive the moving seat to move back quickly. The moving column collides with the transmission ball, and the transmission ball moves along the column groove and collides with the push column to move outward along the column groove. Use the arc extrusion head to squeeze the emergency opening button inside the switch cabinet to realize the opening operation.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention comprises a force-applying component, a positioning component, a protection component, a stretching component and a remote control component to form a gate-breaking part. The gate-breaking part is inclined upward from the force-applying seat to the pushing column and has an inclined angle, so that the transmission ball and the pushing column return to the initial position after moving, which is convenient for the next use. The gate-breaking part moves directionally through the door slot and the extension slot. When emergency gate-breaking is required, a remote controller is used to remotely transmit a signal to the wireless remote control receiver to drive the electric push rod to start, and the stretching plate is squeezed by the electric push rod, so that the first compression spring and the second compression spring are compressed, and the moving seat is forced to move along the door slot toward the front of the cabinet door, and the limit plate moves along the extension slot to improve the movement stability and avoid rotation. After moving to the maximum distance, the electric push rod is quickly recovered. After the stretching plate loses pressure, the first compression spring and the second compression spring rebound to drive the moving seat to move back quickly, and the moving column moves along the column slot to collide with the transmission ball. After the transmission ball is forced, it moves along the column slot and collides with the pushing column. The pushing column moves outward along the column slot, and the arc extrusion head is used to press the emergency gate-breaking button inside the switch cabinet, so as to realize The current trip operation can be performed by remote control or without remote control. When operated manually, the force seat is pulled outward and then the force seat is sent away. Whether it is remote control or manual operation, it is moved outward, and the transmission ball is driven to move by impact force. After the transmission ball moves, it collides with the push column to move the push column, thereby pressing the emergency trip button. Compared with the existing rotation and direct pressing methods, there will be no phenomenon of false start caused by accidental touch. The movement of the transmission ball and the movement of the collision push column both require a large force. A small pull of the force seat is not enough to achieve the trip operation, so unintentional collision with the force seat will not cause false start, which improves safety and solves the problem that most of the existing emergency trip devices of switch cabinets drive the extrusion rod to press the emergency trip button by pressing and rotating, and the pressing and rotating methods are easily touched by people, thereby causing the power system to be used normally due to false operation when emergency trip is not needed. By installing a protective cover, it is also necessary to open the protective cover when using it, and fix the protective cover before operating, which is complicated to operate.

[0022] 2. By setting outer plate grooves on the inner walls on both sides of the column groove and positioning outer plates on the outer walls on both sides of the pushing column, when the pushing column moves, the positioning outer plate moves along the outer plate groove to improve stability, and the end is protected by the protective plate to avoid the movement of the pushing column and the separation of the positioning sleeve. When the moving seat moves, the limit plate moves along the limit plate groove to improve the stability of the moving seat. It is not easy to deviate and cause movement obstruction, thereby ensuring that the opening operation can be completed stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall rear view structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the cabinet door structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the gate opening part of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure between the force-applying component and the stretching component of the present invention;

[0028] Figure 6 It is a schematic diagram of the connection structure of the positioning assembly of the present invention;

[0029] Figure 7 It is a schematic diagram of the equiaxial connection structure of the cross section side of the positioning sleeve of the present invention;

[0030] In the figure: 1, gate part; 2, cabinet door; 3, observation window; 4, door slot; 5, extension slot; 6, force component; 7, positioning component; 8, protection component; 9, stretching component; 10, force seat; 11, moving seat; 12, limit plate; 13, stretching plate; 14, first compression spring; 15, spring fixing seat; 16, moving column; 17, single-head fastener; 18, transmission ball; 19, push column; 20, positioning outer plate; 21, arc Extrusion head; 22, positioning sleeve; 23, moving opening; 24, column slot; 25, limit plate slot; 26, fixing plate; 27, outer plate slot; 28, protective plate; 29, bolt; 30, moving slot; 31, second compression spring; 32, protective groove; 33, fixing hole; 34, through slot; 35, screw; 36, remote control assembly; 37, electric push rod; 38, rod fixing seat; 39, wireless remote control receiver; 40, push rod fixing plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] See also Figure 1-7, an embodiment of the present invention provides: a visual switch cabinet emergency opening remote control device, including a switch part 1, the switch part 1 is installed on the cabinet door 2, the surface of the cabinet door 2 is provided with an observation window 3, the switch part 1 includes a force-applying component 6, one end of the force-applying component 6 is provided with a stretching component 9, one end of the stretching component 9 is provided with a positioning component 7, the upper end of the positioning component 7 is provided with a remote control component 36, the positioning component 7 is connected to the stretching component 9 through the remote control component 36, one end of the positioning component 7 is provided with a protective component 8, a door groove 4 is provided at the connection between the cabinet door 2 and the switch part 1, and the inner walls on both sides of the door groove 4 are provided with extension grooves 5, the switch part 1 is directional moved through the door groove 4 and the extension groove 5, the remote control component 36 includes an electric push rod 37, and the electric push rod 37 is connected to the stretching component 9 through the rod The fixing seat 38 is fixed to the positioning sleeve 22, a wireless remote control receiver 39 is provided at one end of the electric push rod 37, and the wireless remote control receiver 39 is wirelessly connected to the remote control, the output end of the electric push rod 37 is fixed to the stretching plate 13 through the push rod fixing plate 40 external fastener, the force-applying component 6 includes a moving seat 11, both side surfaces of the moving seat 11 are provided with limit plates 12 that move along the extension groove 5, and the moving seat 11 moves along the door groove 4, and a force-applying seat 10 is welded to one end of the moving seat 11, the force-applying component 6 also includes a moving column 16, a transmission ball 18 is provided on one side of the moving column 16, a push column 19 is provided on one side of the transmission ball 18, and an arc extrusion head 21 is provided at one end of the push column 19, and the stretching component 9 includes a stretching plate 13, the stretching plate 13 Located between the moving column 16 and the moving seat 11, a single-head fastener 17 is provided at one end of the moving column 16, one end of the single-head fastener 17 passes through the moving column 16 and the stretching plate 13 in sequence and is threadedly connected to the moving seat 11, and the other end of the single-head fastener 17 is located in a protective groove 32 on the surface of one end of the moving column 16, a first compression spring 14 is provided on one side of one end of the stretching plate 13, and a second compression spring 31 is provided on one side of the other end of the stretching plate 13, and the first compression spring 14 and the second compression spring 31 are respectively fixed to the stretching plate 13 and the cabinet door 2 through the external bolts 29 of the spring fixing seat 15, and the positioning component 7 includes a positioning sleeve 22, and a moving groove 30 is provided at the center of one end of the positioning sleeve 22, and the moving seat 11 moves along the moving groove 30 , the upper and lower parts of the movable groove 30 are provided with movable openings 23 for moving the stretching plate 13, and the inner walls on both sides of the movable groove 30 are provided with limit plate grooves 25 for moving the limit plate 12, and the positioning sleeve 22 is fixed to the fixing hole 33 of the cabinet door 2 by the external fastener of the fixing plate 26, and the other end of the positioning sleeve 22 is provided with a column groove 24 at the center, and the column groove 24 is interconnected with the movable groove 30. When emergency opening is required, the remote control is used to remotely transmit a signal to the wireless remote control receiver 39 to drive the electric push rod 37 to start, and the stretching plate 13 is squeezed by the electric push rod 37, and the moving seat 11 is forced to move along the door groove 4 toward the front of the cabinet door 2. After moving to the maximum distance, the electric push rod 37 is quickly recovered. After the stretching plate 13 loses pressure,The first compression spring 14 and the second compression spring 31 rebound and drive the moving seat 11 to move back quickly, colliding with the transmission ball 18, and the transmission ball 18 collides with the push column 19, and the push column 19 moves outward along the column groove 24, and the arc extrusion head 21 is used to press the emergency opening button inside the switch cabinet to realize the opening operation. The opening can be remotely controlled by remote control, or the remote control method can be not used. When operating manually, the force seat 10 is pulled outward, and then the force seat 10 is sent away. Whether it is remote control or manual operation, the outward The transmission ball 18 is moved by the impact force, and the transmission ball 18 collides with the push column 19 after moving, so that the push column 19 moves, thereby pressing the emergency trip button. Compared with the existing rotation and direct pressing methods, there will be no phenomenon of mis-starting due to accidental contact, which improves safety. The remote control method is a prior art, which has been disclosed in the Chinese patent with the announcement number CN213988779U. The remote visualization method is to install a camera inside the switch cabinet for remote observation. The technology of achieving visualization through remote observation with a camera is a prior art.

[0033] Furthermore, outer plate grooves 27 are provided on both inner walls of the column groove 24, and positioning outer plates 20 are provided on both sides of the push column 19. The push column 19 and the positioning outer plates 20 move along the column groove 24 and the outer plate groove 27 respectively, thereby improving the stability of the movement of the push column 19.

[0034] See also Figure 4 The protection assembly 8 includes a protection plate 28, and a through groove 34 for pushing the column 19 to move is set at the center of the protection plate 28. The two ends of the protection plate 28 are fixed to the positioning sleeve 22 by screws 35. When the pushing column 19 moves, the positioning outer plate 20 moves along the outer plate groove 27 to improve stability. The end protection is performed by relying on the protection plate 28 to prevent the pushing column 19 from moving and separating from the positioning sleeve 22.

[0035] See also Figure 1-7 A method for using a visual switch cabinet emergency opening remote control device comprises the following steps:

[0036] Step 1: Pass the movable seat 11 and the limiting plate 12 along one end of the door groove 4 and the extension groove 5 respectively, and the movable seat 11 and the limiting plate 12 pass through the rear of the cabinet door 2, and then use one end of the single-head fastener 17 to pass through the movable column 16 and the stretching plate 13 in sequence and threadedly connect with the movable seat 11, and fix the movable column 16, the stretching plate 13 and the movable seat 11 in sequence;

[0037] Step 2: The two ends of the first compression spring 14 and the second compression spring 31 are fixed to the stretching plate 13 and the cabinet door 2 respectively using the spring fixing seat 15 external bolts 29. After fixing, the transmission ball 18 and the push column 19 are inserted into the column groove 24. When the push column 19 is inserted, the positioning outer plate 20 is inserted into the outer plate groove 27. The transmission ball 18 is located between the moving column 16 and the pushing column 19. The positioning sleeve 22 is sleeved on the outside of the moving seat 11, the limit plate 12 is inserted into the limit plate groove 25, and the positioning sleeve 22 is fixed to the fixing hole 33 of the cabinet door 2 using the fixing plate 26 external fasteners;

[0038] Step 3: The electric push rod 37 is fixed to the positioning sleeve 22 using the external fastener of the rod fixing seat 38, and the output end of the electric push rod 37 is fixed to the stretching plate 13 using the external fastener of the push rod fixing plate 40;

[0039] Step 4: When emergency opening is required, use the remote control to remotely transmit a signal to the wireless remote control receiver 39, drive the electric push rod 37 to start, squeeze the stretching plate 13, and the moving seat 11 is forced to move along the door groove 4 toward the front of the cabinet door 2. After moving to the maximum distance, the electric push rod 37 is quickly retracted. After the stretching plate 13 loses pressure, the first compression spring 14 and the second compression spring 31 rebound and drive the moving seat 11 to move back quickly. The moving column 16 collides with the transmission ball 18, and the transmission ball 18 moves along the column groove 24, and collides with the push column 19 to move outward along the column groove 24. Use the arc extrusion head 21 to squeeze the emergency opening button inside the switch cabinet to realize the opening operation.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A visual switch cabinet emergency opening remote control device, comprising a switch opening part (1), the switch opening part (1) is installed on a cabinet door (2), and the surface of the cabinet door (2) is provided with an observation window (3), characterized in that: The gate-opening part (1) comprises a force-applying component (6), one end of which is provided with a stretching component (9), one end of which is provided with a positioning component (7), the upper end of which is provided with a remote control component (36), the positioning component (7) is connected to the stretching component (9) via the remote control component (36), one end of which is provided with a protective component (8), a door groove (4) is provided at the connection between the cabinet door (2) and the gate-opening part (1), the inner walls on both sides of the door groove (4) are provided with extension grooves (5), and the gate-opening part (1) is directed to move through the door groove (4) and the extension groove (5).

2. A visual switch cabinet emergency opening remote control device according to claim 1, characterized in that: The force-applying assembly (6) comprises a movable seat (11), both side surfaces of the movable seat (11) are provided with limiting plates (12) that move along the extension groove (5), and the movable seat (11) moves along the door groove (4), and one end of the movable seat (11) is welded with a force-applying seat (10).

3. A visual switch cabinet emergency opening remote control device according to claim 2, characterized in that: The force-applying assembly (6) further comprises a moving column (16), a transmission ball (18) being arranged on one side of the moving column (16), a pushing column (19) being arranged on one side of the transmission ball (18), and a circular arc extrusion head (21) being arranged on one end of the pushing column (19).

4. A visual switch cabinet emergency opening remote control device according to claim 3, characterized in that: The stretching assembly (9) comprises a stretching plate (13), the stretching plate (13) being located between a moving column (16) and a moving seat (11), a single-head fastener (17) being provided at one end of the moving column (16), one end of the single-head fastener (17) passing through the moving column (16) and the stretching plate (13) in sequence and being threadedly connected to the moving seat (11), and the other end of the single-head fastener (17) being located in a protective groove (32) on a surface of one end of the moving column (16).

5. A visual switch cabinet emergency opening remote control device according to claim 4, characterized in that: A first compression spring (14) is provided on one side of one end of the stretching plate (13), and a second compression spring (31) is provided on one side of the other end of the stretching plate (13). Both ends of the first compression spring (14) and the second compression spring (31) are respectively fixed to the stretching plate (13) and the cabinet door (2) via external bolts (29) of a spring fixing seat (15).

6. A visual switch cabinet emergency opening remote control device according to claim 5, characterized in that: The positioning assembly (7) comprises a positioning sleeve (22), a movable groove (30) is arranged at the center of one end of the positioning sleeve (22), and the movable seat (11) moves along the movable groove (30), the movable groove (30) is provided with movable openings (23) for moving the stretching plate (13) at the top and bottom, and the inner walls on both sides of the movable groove (30) are provided with limit plate grooves (25) for moving the limit plate (12), and the positioning sleeve (22) is fixed to the fixing hole (33) of the cabinet door (2) by means of a fixing plate (26) and an external fastener.

7. A visual switch cabinet emergency opening remote control device according to claim 6, characterized in that: A column groove (24) is provided at the center of the other end of the positioning sleeve (22), and the column groove (24) is interconnected with the movable groove (30), and outer plate grooves (27) are provided on both sides of the inner walls of the column groove (24), and positioning outer plates (20) are provided on both sides of the pushing column (19), and the pushing column (19) and the positioning outer plate (20) move along the column groove (24) and the outer plate groove (27) respectively.

8. A visual switch cabinet emergency opening remote control device according to claim 7, characterized in that: The protection assembly (8) comprises a protection plate (28), a through slot (34) for pushing the column (19) to move is arranged at the center of the protection plate (28), and both ends of the protection plate (28) are fixed to the positioning sleeve (22) by screws (35).

9. A visual switch cabinet emergency opening remote control device according to claim 8, characterized in that: The remote control assembly (36) comprises an electric push rod (37), the electric push rod (37) being fixed to the positioning sleeve (22) via a rod fixing seat (38), a wireless remote control receiver (39) being arranged at one end of the electric push rod (37), and the wireless remote control receiver (39) being wirelessly connected to a remote controller, and an output end of the electric push rod (37) being fixed to the stretching plate (13) via an external fastener of a push rod fixing plate (40).

10. A method for using a visual switch cabinet emergency opening remote control device, based on the visual switch cabinet emergency opening remote control device according to claim 9, characterized in that: The following steps are involved: Step 1: Pass the movable seat (11) and the limiting plate (12) along one end of the door groove (4) and the extension groove (5) respectively, and the movable seat (11) and the limiting plate (12) are passed out to the rear of the cabinet door (2), and then one end of the single-head fastener (17) is used to pass through the movable column (16) and the stretching plate (13) in sequence to be threadedly connected with the movable seat (11), and the movable column (16), the stretching plate (13) and the movable seat (11) are fixed in sequence; Step 2: The two ends of the first compression spring (14) and the second compression spring (31) are respectively fixed to the stretch plate (13) and the cabinet door (2) using the external bolts (29) of the spring fixing seat (15). After fixing, the transmission ball (18) and the push column (19) are inserted into the column groove (24). When the push column (19) is inserted, the positioning outer plate (20) is inserted into the outer plate groove (27). The transmission ball (18) is located between the moving column (16) and the pushing column (19). The positioning sleeve (22) is sleeved on the outside of the moving seat (11), the limit plate (12) is inserted into the limit plate groove (25), and the positioning sleeve (22) is fixed to the fixing hole (33) of the cabinet door (2) using the external fasteners of the fixing plate (26); Step 3: The electric push rod (37) is fixed to the positioning sleeve (22) using an external fastener of the rod fixing seat (38), and the output end of the electric push rod (37) is fixed to the stretching plate (13) using an external fastener of the push rod fixing plate (40); Step 4: When emergency opening is required, a remote controller is used to transmit a signal to a wireless remote control receiver (39), which drives the electric push rod (37) to start, squeeze the stretch plate (13), and the movable seat (11) is forced to move along the door groove (4) toward the front of the cabinet door (2). After moving to the maximum distance, the electric push rod (37) is quickly retracted. After the stretch plate (13) loses pressure, the first compression spring (14) and the second compression spring (31) rebound to drive the movable seat (11) to move back quickly. The movable column (16) collides with the transmission ball (18), and the transmission ball (18) moves along the column groove (24), and collides with the push column (19) to move outward along the column groove (24). The arc extrusion head (21) is used to squeeze the emergency opening button inside the switch cabinet to achieve the opening operation.

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