An automatic emergency tripping device for high-voltage switch cabinet

Abstract

The present invention relates to the technical field of high-voltage switch cabinets, and discloses an automatic emergency tripping device for high-voltage switch cabinets, including a high-voltage switch cabinet, wherein the outer wall of the high-voltage switch cabinet is rotatably connected to a switch cabinet door, an observation hole is provided on the outer wall of the switch cabinet door, and a tripping device is fixedly installed in the inner cavity of the high-voltage switch cabinet. The installation between the control circuit and the switch cabinet door is achieved through a guide component, and the excitation component is plugged into the existing observation hole on the surface of the switch cabinet door, and the excitation head and the sleeve are slidably connected, so that when the device is installed, the tripping button is covered by the sleeve, so that the positions of the excitation head and the tripping button are corresponding, and the excitation rod and the connecting seat are rotatably connected, and the connecting seat and the excitation head are slidably connected, so that the angle and length position between the excitation head and the excitation rod can be changed, so that the excitation component can be applied to high-voltage switch cabinets of different models.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage switch cabinets, and in particular to an automatic emergency tripping device for a high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear is widely used in power grids of 10kV, 35kV, 110kV and other levels. It is an important equipment in the power system and is used to receive and distribute electric energy. Specifically, it is usually used to cut off and connect load circuits and cut off faulty circuits. According to the needs of power grid operation, a part of the power equipment or line can be put into or out of operation. When a power equipment or line fails, the faulty part can be quickly cut off from the power grid, thereby preventing the accident from expanding, ensuring the safety of equipment and operation and maintenance personnel, and ensuring the normal operation of the fault-free part of the power grid.

[0003] The circuit breakers of high-voltage switch cabinets are usually operated remotely, that is, remotely operated by a microcomputer in the main control room. However, when the circuit breaker refuses to open (refusal to open is one of the typical faults of high-voltage switch cabinets, that is, the monitoring background cannot control the opening normally), it cannot be disconnected by remote operation, and the operation and maintenance personnel have to disconnect the circuit breaker at close range. During this operation, the purpose of local emergency opening is usually achieved by quickly pressing the trip button through the button operating lever deep into the switch cabinet. This kind of personnel directly operate the emergency opening button because the operator is too close to the high voltage and there are no good preventive measures. It is easy to cause harm to the operator and endanger personal safety in abnormal situations.

[0004] Therefore, there is an urgent need for a mechanism that can effectively replace personnel to perform actions and safely resolve fault conditions when the monitoring background cannot normally open the high-voltage circuit breaker. Summary of the invention

[0005] The present invention provides an automatic emergency tripping device for a high-voltage switch cabinet, which solves the problems raised by the above-mentioned background technology.

[0006] The present invention provides the following technical solution: an automated emergency tripping device for a high-voltage switch cabinet, comprising a high-voltage switch cabinet, wherein the outer wall of the high-voltage switch cabinet is rotatably connected to a switch cabinet door, an outer wall of the switch cabinet door is provided with an observation hole, an inner cavity of the high-voltage switch cabinet is fixedly equipped with a tripping device, a tripping button and the observation hole are provided on the outer wall of the tripping device, an excitation component is plugged into the inner wall of the observation hole, a power component is fixedly sleeved on the outer edge of the excitation component, a control circuit is provided at the bottom of the power component, and a guide component is fixedly equipped on the outer wall of the control circuit close to the switch cabinet door.

[0007] As a preferred technical solution of the present invention: the guide assembly includes a slider, and the outer edge of the slider is slidably sleeved with a slide rail;

[0008] The slide rail is fixedly assembled with the outer wall of the switch cabinet door, and the slide block is fixedly assembled with the outer wall of the control circuit.

[0009] As a preferred technical solution of the present invention: the power component includes a shell three, the inner wall of the shell three is fixedly equipped with an air pump, the top of the inner wall of the shell three is fixedly equipped with a cover plate, the side of the shell three close to the excitation component is provided with an installation groove, the outer wall of the shell three close to the control circuit is provided with a snap-in slide groove, the side of the installation groove away from the switch cabinet door is threadedly connected with a threaded cover, a spring is provided on the side of the threaded cover close to the excitation component, a pull rod two is provided on the side of the spring close to the excitation component, and the pull rod two and the inner wall of the threaded cover are slidably sleeved, the inner wall of the snap-in slide groove is sleeved with a U-shaped clamping rod, the inner cavity of the shell three is provided with a connecting pipe one connecting the installation groove and the snap-in slide groove, the inner cavity of the shell three is provided with a connecting pipe two connecting the installation groove and the inner wall of the shell three, and the inner wall of the installation groove is fixedly equipped with a carbon brush.

[0010] As a preferred technical solution of the present invention: the excitation component is arranged on the inner wall of the mounting groove, the side of the pull rod 2 close to the excitation component is fixedly equipped with a pull plate, the pull plate is located at the end of the excitation component, and the air outlet end of the air pump is connected to the mounting groove through the connecting pipe 2.

[0011] As a preferred technical solution of the present invention: the excitation component includes an excitation tube, one end of the excitation tube is made of hard rubber, the other end of the excitation tube is made of soft rubber, and the soft rubber end is bent toward the inner wall of the hard rubber side, and a sealing sheet is provided on the outer wall of the excitation tube where the soft rubber and the hard rubber are bent, and a pull rod is fixedly installed on the outer wall of the sealing sheet.

[0012] As a preferred technical solution of the present invention: an excitation rod is fixedly mounted on the inner wall of one end of the soft rubber of the excitation tube, a connecting seat is rotatably clamped on the side of the excitation rod close to the opening device, an excitation head is slidably clamped on the inner wall of the connecting seat, a sleeve is slidably sleeved on the outer edge of the excitation head, and a resistance rod is embedded on the outer edge of one end of the excitation rod away from the connecting seat;

[0013] One end of the pull rod close to the connecting seat is fixedly assembled with the outer wall of the connecting seat;

[0014] The resistance rod is slidably connected to the outer edge of the carbon brush, and the air pump forms a circuit loop with the control circuit through the carbon brush and the second connecting pipe.

[0015] As a preferred technical solution of the present invention: the control circuit comprises a housing 1, a housing 2 is fixedly mounted on a side of the housing 1 close to the opening device, a circuit board is fixedly mounted on the inner wall of the housing 2, a controller is fixedly mounted on the top of the circuit board, a card slot is provided on the outer wall of the housing 1, and a card pin is fixedly mounted on the outer wall of the housing 1 close to the power assembly;

[0016] The clamping pin is located on the outer wall of the threaded cover, and the clamping pin is plugged into the inner wall of the second pull rod.

[0017] As a preferred technical solution of the present invention: the control circuit is connected via a card slot and a U-shaped card rod, the power assembly realizes circuit control via the control circuit, and the control circuit has a remote control module.

[0018] The present invention has the following beneficial effects:

[0019] 1. The automatic emergency tripping device for high-voltage switch cabinet is installed between the control circuit and the switch cabinet door through the guide component. The excitation component is inserted into the existing observation hole on the surface of the switch cabinet door, and the excitation head and the sleeve are slidably connected. When the equipment is installed, the trip button is covered by the sleeve, so that the positions of the excitation head and the trip button correspond to each other. The excitation rod and the connecting seat are rotated and connected, and the connecting seat and the excitation head are slidably connected, so that the angle and length position between the excitation head and the excitation rod can be changed, so that the excitation component can be applied to high-voltage switch cabinets of different models.

[0020] 2. The automatic emergency tripping device of the high-voltage switch cabinet is set by bending one end of the soft rubber toward the inner wall of the hard rubber side, and using the excitation rod to seal one end of the soft rubber. When the air pressure in the inner cavity of the excitation tube increases, the soft rubber end of the excitation tube drives the excitation rod to move to one side of the tripping device, and then the excitation rod presses the tripping button set on the outer wall of the tripping device through the connecting seat and the excitation head, thereby realizing the tripping effect;

[0021] The U-shaped clamping rod is clamped together by the clamping slot and the U-shaped clamping rod, so that the control circuit and the power component are connected through the U-shaped clamping rod, and the guide component is used to make the control circuit slide up and down, and the clamping pin and the inner wall of the pull rod are plugged together to lock the spring in the contracted state through the pull plate, the pull rod and the clamping pin, and the installation slot and the clamping slot are connected by the connecting pipe one, so that the U-shaped clamping rod can be pushed by air pressure, and the U-shaped clamping rod and the inner wall of the clamping pin are separated as the air pressure increases, so that the control circuit drives the clamping pin to the inner wall of the pull rod two through its own mass to disengage, and in the disengaged state, the spring elastic force is released, driving the threaded cover to move to the side of the resistance rod, so that the excitation rod presses the opening button arranged on the outer wall of the opening device through the connecting seat and the excitation head, thereby realizing the opening effect.

[0022] 3. The automatic emergency tripping device of the high-voltage switch cabinet is fixedly assembled by a pull rod 1, one end of which is close to the connecting seat, and the outer wall of the connecting seat, so that the connecting seat can tear the sealing sheet away from the excitation tube through the pull rod 1, so that the gas generated by the operation of the air pump is discharged into the inner cavity of the high-voltage switch cabinet, and the gas is used to reduce the probability of fire in the inner cavity of the high-voltage switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the installation state of the present invention;

[0024] Figure 2 This is another schematic diagram of the installation state of the present invention;

[0025] Figure 3 It is a partial schematic diagram of the installation state of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the guide assembly of the present invention;

[0028] Figure 6 This is a schematic diagram of the control circuit structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the power assembly of the present invention;

[0030] Figure 8 This is a schematic diagram of the circuit board structure of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the controller of the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the excitation component of the present invention;

[0033] Fig.11 This is a structural schematic diagram of a connecting pipe of the present invention;

[0034] Fig.12 It is a schematic diagram of the carbon brush structure of the present invention;

[0035] Fig.13 It is a schematic diagram of the structure of the clamping slide groove of the present invention.

[0036] In the figure: 1. High-voltage switch cabinet; 2. Switch cabinet door; 3. Observation hole; 4. Disconnection device; 5. Control circuit; 6. Excitation component; 7. Power component; 8. Guide component;

[0037] 501, housing 1; 502, housing 2; 503, latch; 504, controller; 505, circuit board; 506, slot;

[0038] 601, excitation tube; 602, sealing sheet; 603, pull rod 1; 604, excitation rod; 605, connecting seat; 606, excitation head; 607, sleeve; 608, resistance rod;

[0039] 701, housing three; 702, cover plate; 703, mounting groove; 704, clamping slide groove; 705, air pump; 706, U-shaped clamping rod; 707, connecting pipe one; 708, connecting pipe two; 709, carbon brush; 710, threaded cover; 711, pull plate; 712, spring; 713, pull rod two;

[0040] 801. Slider; 802. Slide rail. DETAILED DESCRIPTION

[0041] 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.

[0042] See also Figure 1 - Fig.13 , an automatic emergency tripping device for a high-voltage switch cabinet, comprising a high-voltage switch cabinet 1, the outer wall of the high-voltage switch cabinet 1 is rotatably connected to a switch cabinet door 2, the outer wall of the switch cabinet door 2 is provided with an observation hole 3, the inner cavity of the high-voltage switch cabinet 1 is fixedly equipped with a tripping device 4, a tripping button is provided on the outer wall of the tripping device 4 and the position of the observation hole 3 corresponds, an excitation component 6 is plugged into the inner wall of the observation hole 3, a power component 7 is fixedly sleeved on the outer edge of the excitation component 6, a control circuit 5 is provided at the bottom of the power component 7, and a guide component 8 is fixedly equipped on the outer wall of the control circuit 5 close to the switch cabinet door 2.

[0043] In a preferred embodiment: the guide assembly 8 includes a slider 801, and the outer edge of the slider 801 is slidably sleeved with a slide rail 802;

[0044] The slide rail 802 is fixedly assembled to the outer wall of the switch cabinet door 2 , and the slide block 801 is fixedly assembled to the outer wall of the control circuit 5 .

[0045] In the above structure, the control circuit 5 is enabled to slide up and down through the guide component 8, and the mass of the control circuit 5 itself is used as the power source for triggering the operation of the excitation component 6.

[0046] In a preferred embodiment, the power assembly 7 includes a shell 3 701, an air pump 705 is fixedly mounted on the inner wall of the shell 3 701, a cover plate 702 is fixedly mounted on the top of the inner wall of the shell 3 701, a mounting groove 703 is provided on the side of the shell 3 701 close to the excitation assembly 6, a snap-in groove 704 is provided on the outer wall of the shell 3 701 close to the control circuit 5, a threaded cover 710 is threadedly connected to the side of the mounting groove 703 away from the switch cabinet door 2, and a threaded cover 710 is provided on the side close to the excitation assembly 6. A spring 712 is provided, and a pull rod 2 713 is provided on the side of the spring 712 close to the excitation component 6, and the pull rod 2 713 and the inner wall of the threaded cover 710 are slidably sleeved, and the inner wall of the snap-in groove 704 is sleeved with a U-shaped clamping rod 706, the inner cavity of the outer shell 3 701 is provided with a connecting pipe 1 707 connecting the installation groove 703 and the snap-in groove 704, the inner cavity of the outer shell 3 701 is provided with a connecting pipe 2 708 connecting the installation groove 703 and the inner wall of the outer shell 3 701, and the inner wall of the installation groove 703 is fixedly equipped with a carbon brush 709.

[0047] In the above structure, in a preferred embodiment: the excitation component 6 is arranged on the inner wall of the mounting groove 703, the pull rod 2 713 is fixedly equipped with a pull plate 711 on the side close to the excitation component 6, the pull plate 711 is located at the end of the excitation component 6, and the air outlet end of the air pump 705 is connected to the mounting groove 703 through the connecting pipe 2 708.

[0048] In the above structure, the excitation component 6 is driven by air as the power source through the air pump 705, and the installation groove 703 and the card-connecting slide groove 704 are connected by connecting pipe 1 707, so that the U-shaped clamping rod 706 can be pushed by air pressure, and the installation groove 703 and the air pump 705 are connected by connecting pipe 2 708, so that the excitation component 6 can be pushed by air pressure.

[0049] In a preferred embodiment: the excitation component 6 includes an excitation tube 601, one end of the excitation tube 601 is made of hard rubber, and the other end of the excitation tube 601 is made of soft rubber, and the soft rubber end is bent toward the inner wall of the hard rubber side, and a sealing sheet 602 is provided on the outer wall of the excitation tube 601 where the soft rubber and the hard rubber are bent, and a pull rod 603 is fixedly installed on the outer wall of the sealing sheet 602.

[0050] In the above structure, one end of the soft rubber is bent toward the inner wall of the hard rubber side, and the excitation rod 604 is used to seal one end of the soft rubber. When the air pressure in the inner cavity of the excitation tube 601 increases, the soft rubber end of the excitation tube 601 drives the excitation rod 604 to move toward one side of the opening device 4, and then the excitation rod 604 presses the opening button provided on the outer wall of the opening device 4 through the connecting seat 605 and the excitation head 606, thereby realizing the opening function.

[0051] In a preferred embodiment: an excitation rod 604 is fixedly mounted on the inner wall of one end of the soft rubber of the excitation tube 601, a connecting seat 605 is rotatably clamped on the side of the excitation rod 604 close to the opening device 4, an excitation head 606 is slidably clamped on the inner wall of the connecting seat 605, a sleeve 607 is slidably sleeved on the outer edge of the excitation head 606, and a resistance rod 608 is embedded on the outer edge of the end of the excitation rod 604 away from the connecting seat 605;

[0052] One end of the pull rod 603 close to the connecting seat 605 is fixedly assembled with the outer wall of the connecting seat 605;

[0053] The outer edges of the resistance rod 608 and the carbon brush 709 are slidably connected, and the air pump 705 forms a circuit loop with the control circuit 5 through the carbon brush 709 and the second connecting pipe 708.

[0054] In the above structure, the excitation head 606 and the sleeve 607 are slidably connected, so that when the device is installed, the opening button can be covered by the sleeve 607, so that the positions of the excitation head 606 and the opening button are corresponding, and the excitation rod 604 and the connecting seat 605 are rotated and connected, and the connecting seat 605 and the excitation head 606 are slidably connected, so that the angle and length position between the excitation head 606 and the excitation rod 604 can be changed, so that the excitation component 6 can be applied to high-voltage switch cabinets of different models;

[0055] Furthermore, the outer edges of the resistance rod 608 and the carbon brush 709 are slidably connected, and the air pump 705 forms a circuit loop with the control circuit 5 through the carbon brush 709 and the connecting tube 708. The outer edge of the resistance rod 608 and the carbon brush 709 are electrically connected. As the resistance rod 608 moves, the contact position of the carbon brush 709 and the resistance rod 608 changes accordingly, thereby increasing the distance between the circuit starting end of the resistance rod 608 and the circuit ending end of the carbon brush 709, thereby increasing the operating power of the air pump 705.

[0056] In a preferred embodiment, the control circuit 5 includes a housing 1 501, a housing 2 502 is fixedly mounted on one side of the housing 1 501 close to the opening device 4, a circuit board 505 is fixedly mounted on the inner wall of the housing 2 502, a controller 504 is fixedly mounted on the top of the circuit board 505, a card slot 506 is opened on the outer wall of the housing 1 501, and a card pin 503 is fixedly mounted on the outer wall of the housing 1 501 close to the power assembly 7;

[0057] The latch 503 is located on the outer wall of the threaded cover 710 , and the latch 503 is plugged into the inner wall of the second pull rod 713 .

[0058] In the above structure, the operating status of the device can be displayed through the controller 504, and the operating status of the power component 7 can be remotely controlled by using the circuit board 505.

[0059] In a preferred embodiment: the control circuit 5 is connected with the U-shaped clamping rod 706 through the clamping slot 506, the power assembly 7 realizes circuit control through the control circuit 5, and the control circuit 5 has a remote control module.

[0060] In the above structure, the control circuit 5 and the power assembly 7 are connected by the U-shaped clamping rod 706 through the clamping groove 506, and the control circuit 5 can slide up and down by using the guide assembly 8. The spring 712 is locked in the contracted state through the pull plate 711, the pull rod 713 and the clamping rod 503 by plugging the clamping pin 503 and the inner wall of the pull rod 713. The installation groove 703 and the clamping slide groove 704 are connected by the connecting pipe 1 707, so that the U-shaped clamping rod 706 can be The pushing is achieved through air pressure. As the air pressure increases, the U-shaped clamping rod 706 separates from the inner wall of the clamping pin 503, and then the control circuit 5 drives the clamping pin 503 to separate from the inner wall of the pull rod 2 713 through its own mass. In the disengaged state, the elastic force of the spring 712 is released, driving the threaded cover 710 to move toward the side of the resistance rod 608, so that the excitation rod 604 presses the opening button set on the outer wall of the opening device 4 through the connecting seat 605 and the excitation head 606, thereby realizing the opening action.

[0061] Working principle: the control circuit 5 and the switch cabinet door 2 are installed by the guide component 8, the excitation component 6 is inserted into the existing observation hole 3 on the surface of the switch cabinet door 2, and the excitation head 606 and the sleeve 607 are slidably sleeved, so that when the device is installed, the opening button is covered by the sleeve 607, so that the positions of the excitation head 606 and the opening button are corresponding, and the excitation rod 604 and the connecting seat 605 are rotated and clamped, and the connecting seat 605 and the excitation head 606 are slidably clamped, so that the angle and length position between the excitation head 606 and the excitation rod 604 can be changed, so that the excitation component 6 can be applied to high-voltage switch cabinets of different models;

[0062] The operating state of the device can be displayed by the controller 504, and the operating state of the power assembly 7 can be remotely controlled by the circuit board 505;

[0063] When it is necessary to perform an automatic emergency trip, the computer sends a command to the control circuit 5, and the control circuit 5 controls the air pump 705 to operate, so that the pressure on the inner wall of the installation groove 703 increases, and the installation groove 703 and the air pump 705 are connected by the connecting pipe 2 708, and the excitation tube 601 and the installation groove 703 are sealed and connected;

[0064] By bending one end of the soft rubber toward the inner wall of the hard rubber side, and using the excitation rod 604 to seal one end of the soft rubber, when the air pressure in the inner cavity of the excitation tube 601 increases, the soft rubber end of the excitation tube 601 drives the excitation rod 604 to move toward one side of the opening device 4, so that the excitation rod 604 presses the opening button set on the outer wall of the opening device 4 through the connecting seat 605 and the excitation head 606, so as to achieve the opening action, and the connecting seat 605 is fixedly assembled by the end of the pull rod 1 603 close to the connecting seat 605 and the outer wall of the connecting seat 605, so that the connecting seat 605 tears the sealing sheet 602 off the excitation tube 601 through the pull rod 1 603, so that the gas generated by the operation of the air pump 705 is discharged into the inner cavity of the high-voltage switch cabinet 1, and the gas is used to reduce the probability of fire in the inner cavity of the high-voltage switch cabinet 1;

[0065] Furthermore, the outer edges of the resistance rod 608 and the carbon brush 709 are slidably connected, and the air pump 705 forms a circuit loop with the control circuit 5 through the carbon brush 709 and the second connecting tube 708. The outer edge of the resistance rod 608 and the carbon brush 709 are electrically connected. As the resistance rod 608 moves, the contact position of the carbon brush 709 and the resistance rod 608 changes, thereby increasing the distance between the circuit start end of the resistance rod 608 and the circuit end end of the carbon brush 709, so that the operating power of the air pump 705 increases accordingly.

[0066] The control circuit 5 and the power assembly 7 are connected by the U-shaped clamping rod 706 through the clamping groove 506. The control circuit 5 can slide up and down by using the guide assembly 8. The spring 712 is locked in the contracted state through the pull plate 711, the pull rod 713 and the clamping rod 503 by plugging. The installation groove 703 and the clamping slide groove 704 are connected by the connecting pipe 1 707, so that the U-shaped clamping rod 706 can be moved by air. The pressure is used to push the U-shaped clamping rod 706. As the air pressure increases, the U-shaped clamping rod 706 and the inner wall of the clamping pin 503 are separated, so that the control circuit 5 drives the clamping pin 503 to separate from the inner wall of the pull rod 2 713 through its own mass. In the disengaged state, the elastic force of the spring 712 is released, driving the threaded cover 710 to move to the side of the resistance rod 608, so that the excitation rod 604 presses the opening button set on the outer wall of the opening device 4 through the connecting seat 605 and the excitation head 606, thereby realizing the opening effect.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] 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. An automatic emergency tripping device for a high-voltage switch cabinet, comprising a high-voltage switch cabinet (1), wherein the outer wall of the high-voltage switch cabinet (1) is rotatably connected to a switch cabinet door (2), an outer wall of the switch cabinet door (2) is provided with an observation hole (3), an inner cavity of the high-voltage switch cabinet (1) is fixedly equipped with a tripping device (4), and a tripping button and the observation hole (3) are provided on the outer wall of the tripping device (4), and the device is characterized in that: An excitation component (6) is inserted into the inner wall of the observation hole (3); a power component (7) is fixedly sleeved on the outer edge of the excitation component (6); a control circuit (5) is arranged at the bottom of the power component (7); and a guide component (8) is fixedly mounted on the outer wall of one side of the control circuit (5) close to the switch cabinet door (2); The power assembly (7) comprises a third housing (701), an air pump (705) is fixedly mounted on the inner wall of the third housing (701), a cover plate (702) is fixedly mounted on the top of the inner wall of the third housing (701), a mounting groove (703) is provided on a side of the third housing (701) close to the excitation assembly (6), a snap-in sliding groove (704) is provided on an outer wall of a side of the third housing (701) close to the control circuit (5), a threaded cover (710) is threadedly connected to a side of the mounting groove (703) away from the switch cabinet door (2), and a spring (710) is provided on a side of the threaded cover (710) close to the excitation assembly (6). 712), a pull rod 2 (713) is provided on one side of the spring (712) close to the excitation component (6), and the pull rod 2 (713) and the inner wall of the threaded cover (710) are slidably sleeved, the inner wall of the snap-in slide groove (704) is sleeved with a U-shaped clamping rod (706), the inner cavity of the shell 3 (701) is provided with a connecting pipe 1 (707) connecting the installation groove (703) and the snap-in slide groove (704), the inner cavity of the shell 3 (701) is provided with a connecting pipe 2 (708) connecting the installation groove (703) and the inner wall of the shell 3 (701), and the inner wall of the installation groove (703) is fixedly equipped with a carbon brush (709); The excitation component (6) is arranged on the inner wall of the mounting groove (703); a pull plate (711) is fixedly mounted on the side of the second pull rod (713) close to the excitation component (6); the pull plate (711) is located at the end of the excitation component (6); and the air outlet end of the air pump (705) is connected to the mounting groove (703) via the second connecting pipe (708); The excitation component (6) comprises an excitation tube (601), one end of the excitation tube (601) is made of hard rubber, the other end of the excitation tube (601) is made of soft rubber, and the soft rubber end is bent toward the inner wall of the hard rubber side. A sealing sheet (602) is provided on the outer wall of the excitation tube (601) where the soft rubber and the hard rubber are bent, and a pull rod (603) is fixedly mounted on the outer wall of the sealing sheet (602); An excitation rod (604) is fixedly mounted on the inner wall of one end of the soft rubber of the excitation tube (601); a connecting seat (605) is rotatably engaged with the excitation rod (604) on the side close to the opening device (4); an excitation head (606) is slidably engaged with the inner wall of the connecting seat (605); a sleeve (607) is slidably sleeved on the outer edge of the excitation head (606); and a resistance rod (608) is embedded on the outer edge of one end of the excitation rod (604) away from the connecting seat (605); One end of the pull rod 1 (603) close to the connecting seat (605) is fixedly assembled with the outer wall of the connecting seat (605); The outer edges of the resistance rod (608) and the carbon brush (709) are slidably connected, and the air pump (705) forms a circuit loop with the control circuit (5) through the carbon brush (709) and the second connecting pipe (708).

2. The automatic emergency tripping device for high-voltage switch cabinet according to claim 1 is characterized in that: The guide assembly (8) comprises a sliding block (801), and the outer edge of the sliding block (801) is slidably sleeved with a sliding rail (802); The slide rail (802) is fixedly assembled to the outer wall of the switch cabinet door (2), and the slide block (801) is fixedly assembled to the outer wall of the control circuit (5).

3. The automatic emergency tripping device for high-voltage switch cabinet according to claim 1 is characterized in that: The control circuit (5) comprises a first housing (501), a second housing (502) is fixedly mounted on a side of the first housing (501) close to the opening device (4), a circuit board (505) is fixedly mounted on the inner wall of the second housing (502), a controller (504) is fixedly mounted on the top of the circuit board (505), a card slot (506) is provided on the outer wall of the first housing (501), and a card pin (503) is fixedly mounted on the outer wall of the first housing (501) close to the power assembly (7); The latch (503) is located on the outer wall of the threaded cover (710), and the latch (503) is plugged into the inner wall of the second pull rod (713).

4. The automatic emergency tripping device for high-voltage switch cabinet according to claim 3 is characterized in that: The control circuit (5) is connected to the U-shaped clamping rod (706) via the clamping slot (506), the power assembly (7) realizes circuit control via the control circuit (5), and the control circuit (5) has a remote control module.

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