An emergency power supply with an isolation protection structure for large power grid safety protection

Abstract

The present invention discloses an emergency power supply with an isolation and protection structure for the safety protection of a large power grid, relating to the field of isolation and protection technology, comprising: an emergency power supply protection box, which is arranged on the ground; a cabinet door, which is rotatably mounted on the inner wall of the emergency power supply protection box; a two-way telescopic device, which is fixedly mounted on the surface of the emergency power supply protection box; a fixing frame, which is fixedly mounted on the output end of the two-way telescopic device, and is used to drive the fixing frame to move back and forth; an isolation plate, which is fixedly mounted on the surface of the fixing frame; a rotating shaft, which is rotatably mounted on the surface of the isolation plate; and a protective plate, which is fixedly mounted on the circumferential surface of the rotating shaft; the isolation plate is moved in a direction away from the emergency power supply protection box to prevent the equipment from being affected by external environmental factors, thereby affecting the timely power supply of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of isolation protection, and in particular to an emergency power supply with an isolation protection structure for safety protection of a large power grid. Background Art

[0002] Emergency power supply for large-scale power grid security protection is an important equipment to ensure that the power system can quickly restore power supply and ensure the normal operation of key facilities in the event of a failure or emergency.

[0003] The patent with patent announcement number CN111030281B relates to an emergency power supply with an isolation and protection structure, which belongs to the field of emergency power supply technology, including an EPS emergency power supply body, a card strip, a card seat, a reset spring and a threaded column. A first mounting shaft is installed on the outside of the EPS emergency power supply body box, and a stabilizing groove is provided on the bottom side of the EPS emergency power supply body, and a reset spring is welded and fixed on the top of the inner side of the stabilizing groove. A bottom storage groove is provided on the bottom of the EPS emergency power supply body, and a functional board is provided in the bottom storage groove. A side hole is provided on the side wall of the limiting window, and the side hole is fitted with the threaded column. At the same time, an extrusion disk is welded and fixed at the end of the threaded column. The emergency power supply with an isolation and protection structure adopts a new structural design, so that the isolation and protection structure in the device can be stably stored and fixed when not in use, without affecting the normal transportation and storage of the EPS emergency power supply as a whole. When in use, it can be conveniently unfolded and fixed to isolate and protect both sides of the EPS emergency power supply to avoid collision.

[0004] In the above patent, the isolation and protection structure can be stably stored and fixed when not in use, without affecting the normal transportation and storage of the EPS emergency power supply as a whole. When in use, it can be conveniently unfolded and fixed to isolate and protect both sides of the EPS emergency power supply to avoid collision. However, during the protection process, the cabinet door may be opened, which may cause it to be manually closed during the start-up of the emergency power supply, affecting power recovery. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an emergency power supply with an isolation protection structure for large-scale power grid safety protection, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an emergency power supply with an isolation and protection structure for large-scale power grid safety protection, comprising: an emergency power supply protection box, the emergency power supply protection box is arranged on the ground, and an emergency power supply body is arranged inside the emergency power supply protection box; a cabinet door, the cabinet door is rotatably mounted on the inner wall of the emergency power supply protection box; a two-way telescopic device, the two-way telescopic device is fixedly mounted on the surface of the emergency power supply protection box; a fixed frame, the fixed frame is fixedly mounted on the output end of the two-way telescopic device, and the two-way telescopic device is used to drive the fixed frame to move back and forth; an isolation plate, the isolation plate is fixedly mounted on the surface of the fixed frame; a rotating shaft, the rotating shaft is rotatably mounted on the surface of the isolation plate; a protective plate, the protective plate is fixedly mounted on the circumferential surface of the rotating shaft; a gear, the gear is fixedly mounted on the bottom of the rotating shaft; a rack, the rack is fixedly mounted on the surface of the emergency power supply protection box, the gear and the rack surface are meshed, and starting the output end of the two-way telescopic device to move in a direction away from the emergency power supply protection box drives the fixed frame to move in a direction away from the emergency power supply protection box, and the movement of the fixed frame in a direction away from the emergency power supply protection box will drive the isolation plate to move in a direction away from the emergency power supply protection box.

[0007] According to the above technical solution, a card slot is fixedly installed on the surface of the cabinet door, a sliding plate is slidably installed on the inner wall of the emergency power supply protection box, a connecting plate is fixedly installed on the surface of the sliding plate, and a pulley frame is fixedly installed on the side of the isolation plate close to the emergency power supply protection box. The movement of the isolation plate in the direction away from the emergency power supply protection box will drive the pulley frame to move in the direction away from the emergency power supply protection box, and the movement of the pulley frame in the direction away from the emergency power supply protection box will be separated from the support of the connecting plate.

[0008] According to the above technical solution, a No. 1 spring is provided between the emergency power supply protection box and the sliding plate. When the pulley frame is out of contact with the connecting plate, the elastic force of the No. 1 spring itself will drive the sliding plate to reset. A slope is provided on the side of the connecting plate close to the pulley frame, and the pulley frame contacts the slope of the connecting plate.

[0009] According to the above technical solution, the emergency power supply protection box is provided with a protective device for preventing electrical interference and a support device for auxiliary support. The protective device includes a pulley plate, a sliding block, a grounding rod and a trapezoidal plate. The pulley plate is driven to move away from the emergency power supply protection box by the isolation plate. When the pulley plate moves away from the emergency power supply protection box, it will lose support for the trapezoidal plate. The pulley plate is fixedly installed on the surface of the isolation plate, the sliding block is slidably installed on the inner wall of the emergency power supply protection box, the grounding rod is fixedly installed on the bottom of the sliding block, and the trapezoidal plate is fixedly installed on the top of the sliding block.

[0010] According to the above technical solution, a sliding seat is slidably installed on the surface of the isolation plate, a short rod is fixedly installed on the bottom of the sliding seat, a hinged rod is rotatably installed on the surface of the short rod, and the end of the hinged rod away from the short rod is rotatably installed on the inner wall of the emergency power supply protection box. The movement of the sliding seat in the direction away from the emergency power supply protection box will drive the short rod to move in the direction away from the emergency power supply protection box. The movement of the short rod in the direction away from the emergency power supply protection box will be pulled by the hinged rod, and the hinged rod will pull the short rod and the sliding seat downward.

[0011] According to the above technical solution, a No. 2 spring is arranged between the sliding block and the emergency power supply protection box. When the pulley plate is separated from the trapezoidal plate, the elastic force of the No. 2 spring itself will drive the sliding block to reset. The pulley plate is in contact with the surface of the trapezoidal plate. A No. 3 spring is arranged between the isolation plate and the sliding seat. When the isolation plate is reset, the elastic force of the No. 3 spring itself will drive the sliding seat to reset.

[0012] According to the above technical solution, the supporting device includes a circular slider, a guide groove, a trapezoidal slider and a slide groove. The circular slider is driven downward by the downward movement of the sliding seat. The circular slider will move downward along the guide groove. During the movement of the circular slider, it will contact the trapezoidal slider. The circular slider will push the trapezoidal slider to move toward the inside of the slide groove. The guide groove is opened on the inner wall of the isolation plate. One end of the circular slider is slidably installed on the surface of the sliding seat, and the other end of the circular slider slides on the inner wall of the guide groove. The slide groove is opened on the surface of the guide groove, and the trapezoidal slider is slidably installed on the inner wall of the slide groove.

[0013] According to the above technical solution, a rotating rod is rotatably installed on the inner wall of the guide groove, a rotating block is fixedly installed on the surface of the rotating rod, and a one-way baffle is fixedly installed on the surface of the rotating block. The one-way baffle is in contact with the surface of the guide groove. The contraction of the output end of the two-way telescopic device will squeeze the hinged rod and the sliding seat to move upward. The upward movement of the sliding seat will drive the circular slider to move upward along the guide groove away from the end of the trapezoidal slider.

[0014] According to the above technical solution, a No. 4 spring is arranged between the circular slider and the sliding seat. When the circular slider is out of contact with the guide groove, the No. 4 spring will drive the circular slider to reset. A No. 5 spring is arranged between the trapezoidal slider and the sliding groove. When the circular slider is out of contact with the trapezoidal slider, the elastic force of the No. 5 spring itself will drive the trapezoidal slider to reset. A No. 1 torsion spring is arranged between the guide groove and the rotating rod. When the circular slider is out of contact with the one-way baffle, the torsion force of the No. 1 torsion spring itself will drive the rotating rod to reset.

[0015] The present invention provides an emergency power supply with an isolation protection structure for large-scale power grid security protection. It has the following beneficial effects:

[0016] (1) In this invention, the output end of the bidirectional telescopic device is activated to move in the direction away from the emergency power supply protection box, driving the fixed frame to move in the direction away from the emergency power supply protection box. The movement of the fixed frame in the direction away from the emergency power supply protection box will drive the isolation plate to move in the direction away from the emergency power supply protection box. The isolation plate moves in the direction away from the emergency power supply protection box to prevent the equipment from being affected by external environmental factors, which may affect the timely power supply of the equipment. The front of the cabinet door is protected and isolated by the rotation of the protective plate, thereby improving the safety of the equipment during operation. (2) In this invention, the pulley frame is driven to move in the direction away from the emergency power supply protection box by the isolation plate. The pulley frame moves in the direction away from the emergency power supply protection box and will be separated from the support of the connecting plate. The connecting plate will move downward under the elastic force of the No. 1 spring of the sliding plate when it loses support. The sliding plate will be stuck in the card slot when it moves downward. The card slot limits the cabinet door to prevent someone from manually opening the cabinet door during the isolation and protection process, which poses a safety hazard. (3) This invention drives the pulley plate to move away from the emergency power supply protection box by moving the isolation plate in the direction away from the emergency power supply protection box, and moves the ground rod downward to contact the ground, which can guide the excess current, safety current or external interference current to the ground, and avoid the interference current from affecting the equipment. When the short rod moves in the direction away from the emergency power supply protection box, it will be pulled by the hinged rod, and the hinged rod will pull the short rod and the sliding seat downward. The isolation plate is supported by the rotation of the hinged rod, thereby improving the protection effect of the isolation plate and preventing the isolation plate from being hit, causing the isolation plate to deform and affecting the isolation protection of the equipment. (4) This invention drives the circular slider downward by the downward movement of the sliding seat. The circular slider moves downward along the guide groove. During the movement of the circular slider, it contacts the trapezoidal slider. The trapezoidal slider holds the circular slider against the hinged rod and the sliding seat, so that the hinged rod and the sliding seat will not shrink when they are hit during the process of supporting the isolation plate, thereby improving the isolation protection of the equipment. At the same time, the upward movement of the sliding seat will drive the circular slider to move upward along the guide groove away from the end of the trapezoidal slider. When the sliding seat moves to the top of the guide groove, the circular slider will be separated from the guide groove and reset under the elastic force of the No. 4 spring, which is convenient for subsequent isolation protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the protection box and the two-way telescopic device of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the emergency power supply protection box of the present invention;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the emergency power supply protection box and the isolation plate of the present invention;

[0021] Figure 5 This is a structural diagram of the hinged rod and emergency power supply protection box of the present invention;

[0022] Figure 6 This is a schematic diagram of the isolation plate and sliding seat structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the isolation plate and guide groove structure of the present invention;

[0024] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of part A.

[0025] In the figure: 1. Emergency power supply protection box; 2. Cabinet door; 3. Two-way telescopic device; 4. Fixed frame; 5. Isolation plate; 6. Rotating shaft; 7. Protective plate; 8. Gear; 9. Rack; 10. Slot; 11. Sliding plate; 12. Connecting plate; 13. Pulley frame; 141. Pulley plate; 142. Sliding block; 143. Grounding rod; 144. Trapezoidal plate; 145. Articulated rod; 146. Short rod; 147. Sliding seat; 151. Circular slider; 152. Guide groove; 153. Trapezoidal slider; 154. Slide groove; 155. Rotating rod; 156. Rotating block; 157. One-way baffle. DETAILED DESCRIPTION

[0026] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 , one embodiment of the present invention is: an emergency power supply with an isolation protection structure for large-scale power grid safety protection, comprising: an emergency power supply protection box 1, the emergency power supply protection box 1 is arranged on the ground, and an emergency power supply body is arranged inside the emergency power supply protection box 1; a cabinet door 2, the cabinet door 2 is rotatably mounted on the inner wall of the emergency power supply protection box 1; a two-way telescopic device 3, the two-way telescopic device 3 is fixedly mounted on the surface of the emergency power supply protection box 1; a fixing frame 4, the fixing frame 4 is fixedly mounted on the output end of the two-way telescopic device 3, and the two-way telescopic device 3 is used to drive the fixing frame 4 to move back and forth; an isolation plate 5, the isolation plate 5 is fixedly mounted on the surface of the fixing frame 4; a rotating shaft 6, the rotating shaft 6 is rotatably mounted on the surface of the isolation plate 5; a protective plate 7, the protective plate 7 is fixedly mounted on the circumferential surface of the rotating shaft 6; a gear 8, the gear 8 is fixedly mounted on the bottom of the rotating shaft 6; a rack 9, the rack 9 is fixedly mounted on the surface of the emergency power supply protection box 1, the gear 8 and the rack 9 are engaged with each other, and move away from the emergency power supply protection box 1 through the isolation plate 5 to prevent the equipment from being affected by external environmental factors and affecting the timely power supply of the equipment.

[0028] A card slot 10 is fixedly installed on the surface of the cabinet door 2, a sliding plate 11 is slidably installed on the inner wall of the emergency power supply protection box 1, a connecting plate 12 is fixedly installed on the surface of the sliding plate 11, and a pulley frame 13 is fixedly installed on the side of the isolation plate 5 close to the emergency power supply protection box 1. When the sliding plate 11 moves downward, it will be stuck in the card slot 10 to limit the cabinet door 2, preventing someone from manually opening the cabinet door 2 during the isolation and protection process, which poses a safety hazard.

[0029] A No. 1 spring is provided between the emergency power supply protection box 1 and the sliding plate 11. When the pulley frame 13 is out of contact with the connecting plate 12, the elastic force of the No. 1 spring itself will drive the sliding plate 11 to reset. A slope is provided on the side of the connecting plate 12 close to the pulley frame 13, and the pulley frame 13 contacts the slope of the connecting plate 12.

[0030] When this embodiment is working: the output end of the two-way telescopic device 3 is started to move in the direction away from the emergency power supply protection box 1, driving the fixed frame 4 to move in the direction away from the emergency power supply protection box 1, and the movement of the fixed frame 4 in the direction away from the emergency power supply protection box 1 will drive the isolation plate 5 to move in the direction away from the emergency power supply protection box 1. The isolation plate 5 moves in the direction away from the emergency power supply protection box 1 to prevent the equipment from being affected by external environmental factors and affecting the timely power supply of the equipment. The movement of the isolation plate 5 in the direction away from the emergency power supply protection box 1 will drive the rotating shaft 6 to move in the direction away from the emergency power supply protection box 1. The movement of the rotating shaft 6 in the direction away from the emergency power supply protection box 1 will drive the gear 8 to move in the direction away from the emergency power supply protection box 1, and the gear 8 moves away from the emergency power supply protection box 1 moves in the direction of meshing with the rack 9 to rotate. The rotation of the gear 8 will drive the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 will drive the protective plate 7 to rotate. The protection isolation of the front of the cabinet door 2 is performed by the rotation of the protective plate 7, thereby improving the safety of the equipment during operation. At the same time, the movement of the isolation plate 5 in the direction away from the emergency power supply protection box 1 will drive the pulley frame 13 to move in the direction away from the emergency power supply protection box 1. The movement of the pulley frame 13 in the direction away from the emergency power supply protection box 1 will be separated from the support of the connecting plate 12. The connecting plate 12 loses support and moves downward under the elastic force of the No. 1 spring of the sliding plate 11. The sliding plate 11 moves downward and is stuck in the slot 10 to limit the cabinet door 2, preventing someone from manually opening the cabinet door 2 during the isolation and protection process, which poses a safety hazard.

[0031] See also Figures 1-8On the basis of the above embodiment, in another embodiment of the present invention, a protective device for preventing electrical interference and a supporting device for auxiliary support are provided on the emergency power supply protection box 1, and the protective device includes a pulley plate 141, a sliding block 142, a grounding rod 143 and a trapezoidal plate 144. The pulley plate 141 is fixedly mounted on the surface of the isolation plate 5, the sliding block 142 is slidably mounted on the inner wall of the emergency power supply protection box 1, the grounding rod 143 is fixedly mounted on the bottom of the sliding block 142, and the trapezoidal plate 144 is fixedly mounted on the top of the sliding block 142. The grounding rod 143 moves downward to contact the ground, thereby guiding excess current, safety current or external interference current to the ground to prevent the interference current from affecting the equipment.

[0032] A sliding seat 147 is slidably installed on the surface of the isolation plate 5, and a short rod 146 is fixedly installed on the bottom of the sliding seat 147. A hinged rod 145 is rotatably installed on the surface of the short rod 146. The end of the hinged rod 145 away from the short rod 146 is rotatably installed on the inner wall of the emergency power supply protection box 1. The isolation plate 5 is supported by the rotation of the hinged rod 145 to improve the protection effect of the isolation plate 5 and prevent the isolation plate 5 from being hit, causing the isolation plate 5 to deform and affecting the isolation protection of the equipment.

[0033] A No. 2 spring is arranged between the sliding block 142 and the emergency power supply protection box 1. When the pulley plate 141 is separated from the trapezoidal plate 144, the elastic force of the No. 2 spring itself will drive the sliding block 142 to reset. The pulley plate 141 and the trapezoidal plate 144 are in surface contact. A No. 3 spring is arranged between the isolation plate 5 and the sliding seat 147. When the isolation plate 5 is reset, the elastic force of the No. 3 spring itself will drive the sliding seat 147 to reset.

[0034] The supporting device includes a circular slider 151, a guide groove 152, a trapezoidal slider 153 and a slide groove 154. The guide groove 152 is opened on the inner wall of the isolation plate 5. One end of the circular slider 151 is slidably installed on the surface of the sliding seat 147. The other end of the circular slider 151 slides on the inner wall of the guide groove 152. The slide groove 154 is opened on the surface of the guide groove 152. The trapezoidal slider 153 is slidably installed on the inner wall of the slide groove 154. The circular slider 151 is supported by the trapezoidal slider 153, so that the hinged rod 145 and the sliding seat 147 will not shrink when they are hit during the process of supporting the isolation plate 5, thereby improving the isolation protection of the equipment.

[0035] A rotating rod 155 is rotatably installed on the inner wall of the guide groove 152, a rotating block 156 is fixedly installed on the surface of the rotating rod 155, and a one-way baffle 157 is fixedly installed on the surface of the rotating block 156. The one-way baffle 157 is in contact with the surface of the guide groove 152. When the sliding seat 147 moves to the top of the guide groove 152, it is convenient for subsequent isolation and protection.

[0036] A No. 4 spring is arranged between the circular slider 151 and the sliding seat 147. When the circular slider 151 is out of contact with the guide groove 152, the No. 4 spring will drive the circular slider 151 to reset. A No. 5 spring is arranged between the trapezoidal slider 153 and the slide groove 154. When the circular slider 151 is out of contact with the trapezoidal slider 153, the elastic force of the No. 5 spring itself will drive the trapezoidal slider 153 to reset. A No. 1 torsion spring is arranged between the guide groove 152 and the rotating rod 155. When the circular slider 151 is out of contact with the one-way baffle 157, the torsion force of the No. 1 torsion spring itself will drive the rotating rod 155 to reset.

[0037] When this embodiment is working: the isolation plate 5 moves in the direction away from the emergency power protection box 1, driving the pulley plate 141 to move in the direction away from the emergency power protection box 1. The pulley plate 141 moves in the direction away from the emergency power protection box 1 and loses its support for the trapezoidal plate 144, so that the second spring between the sliding block 142 and the emergency power protection box 1 drives the trapezoidal plate 144 to move downward. The downward movement of the trapezoidal plate 144 drives the sliding block 142 and the grounding rod 143 to move downward. The grounding rod 143 moves downward to contact the ground, which can guide excess current, safety current or external interference current to the ground, avoiding the interference current from affecting the equipment. At the same time, the movement of the isolation plate 5 away from the emergency power supply protection box 1 will drive the sliding seat 147 to move away from the emergency power supply protection box 1. The movement of the sliding seat 147 away from the emergency power supply protection box 1 will drive the short rod 146 to move away from the emergency power supply protection box 1. The short rod 146 moves away from the emergency power supply protection box 1 and is pulled by the hinged rod 145. The hinged rod 145 will pull the short rod 146 and the sliding seat 147 downward, and support the isolation plate 5 through the rotation of the hinged rod 145, thereby improving the protection effect of the isolation plate 5 and preventing the isolation plate 5 from being hit, causing the isolation plate 5 to deform and affecting the isolation protection of the equipment.

[0038] When the cam 152 is in the process of being disengaged from the guide slot 154, the sliding block 151 is moved downwards by the sliding seat 147, and the sliding block 151 moves downwards, and the sliding block 151 contacts the trapezoidal sliding block 153 during the downward movement of the sliding block 151, and the sliding block 151 pushes the trapezoidal sliding block 153 to move into the inner part of the sliding slot 154. When the sliding block 151 is disengaged from the trapezoidal sliding block 153, the elastic force of the No. 5 spring drives the trapezoidal sliding block 153 to reset, and the sliding block 151 is pressed against by the trapezoidal sliding block 153, so that the hinged rod 145 and the sliding seat 147 will not shrink when they are hit during the support of the isolation plate 5, thereby improving the isolation protection of the equipment. At the same time, when the isolation plate 5 needs to be moved in the direction close to the emergency power supply protection box 1, the isolation plate 5 is continuously moved in the direction away from the emergency power supply protection box 1. During the movement of the isolation plate 5, the sliding seat 147 will continue to move downwards. When the sliding seat 147 moves downward, it will contact the inclined surface of the guide groove 152, causing the circular slider 151 to move in the direction away from the one-way baffle 157. During the downward movement, the circular slider 151 will contact the one-way baffle 157, and the one-way baffle 157 will rotate upward. When the circular slider 151 is disengaged from the one-way baffle 157, the elastic force of the No. 1 torsion spring itself will drive the one-way baffle 157 to reset, and at the same time start the two-way telescopic device 3 to retract. The contraction of the output end of the two-way telescopic device 3 will squeeze the hinge rod 145 and the sliding seat 147 to move upward. The upward movement of the sliding seat 147 will drive the circular slider 151 to move upward along the guide groove 152 away from one end of the trapezoidal slider 153. When the sliding seat 147 moves to the top of the guide groove 152, the circular slider 151 will disengage from the contact with the guide groove 152 and will reset under the elastic force of the No. 4 spring, which is convenient for subsequent isolation and protection.

[0039] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An emergency power supply with an isolation protection structure for large-scale power grid security protection, a protective device for isolating and protecting the emergency power supply, characterized in that: include: An emergency power supply protection box (1), the emergency power supply protection box (1) being arranged on the ground, and an emergency power supply body being arranged inside the emergency power supply protection box (1); A cabinet door (2), the cabinet door (2) being rotatably mounted on the inner wall of the emergency power protection box (1); A two-way telescopic device (3), wherein the two-way telescopic device (3) is fixedly mounted on the surface of the emergency power supply protection box (1); A fixed frame (4), the fixed frame (4) being fixedly mounted on the output end of the bidirectional telescopic device (3), the bidirectional telescopic device (3) being used to drive the fixed frame (4) to move back and forth; An isolation plate (5), wherein the isolation plate (5) is fixedly mounted on the surface of the fixing frame (4); A rotating shaft (6), the rotating shaft (6) being rotatably mounted on the surface of the isolation plate (5); A protective plate (7), the protective plate (7) being fixedly mounted on the circumferential surface of the rotating shaft (6); A gear (8), wherein the gear (8) is fixedly mounted on the bottom of the rotating shaft (6); A rack (9), the rack (9) is fixedly mounted on the surface of the emergency power supply protection box (1), the gear (8) and the rack (9) are meshed with each other, and the emergency power supply protection box (1) is provided with a protection device for preventing electrical interference and a support device for auxiliary support; A card slot (10) is fixedly mounted on the surface of the cabinet door (2), a sliding plate (11) is slidably mounted on the inner wall of the emergency power protection box (1), a connecting plate (12) is fixedly mounted on the surface of the sliding plate (11), and a pulley frame (13) is fixedly mounted on a side of the isolation plate (5) close to the emergency power protection box (1); A spring No. 1 is provided between the emergency power supply protection box (1) and the sliding plate (11); a side of the connecting plate (12) close to the pulley frame (13) is provided with an inclined surface; the pulley frame (13) is in contact with the inclined surface of the connecting plate (12); The protection device comprises a pulley plate (141), a sliding block (142), a grounding rod and a trapezoidal plate, wherein the pulley plate (141) is fixedly mounted on the surface of the isolation plate (5), the sliding block (142) is slidably mounted on the inner wall of the emergency power supply protection box (1), the grounding rod is fixedly mounted on the bottom of the sliding block (142), and the trapezoidal plate is fixedly mounted on the top of the sliding block (142).

2. The emergency power supply with an isolation protection structure for large-scale power grid safety protection according to claim 1, characterized in that: A sliding seat (147) is slidably mounted on the surface of the isolation plate (5), a short rod (146) is fixedly mounted on the bottom of the sliding seat (147), a hinged rod (145) is rotatably mounted on the surface of the short rod (146), and one end of the hinged rod (145) away from the short rod (146) is rotatably mounted on the inner wall of the emergency power protection box (1).

3. The emergency power supply with an isolation protection structure for large-scale power grid safety protection according to claim 2, characterized in that: A No. 2 spring is provided between the sliding block (142) and the emergency power supply protection box (1), the pulley plate (141) contacts the surface of the trapezoidal plate, and a No. 3 spring is provided between the isolation plate (5) and the sliding seat (147).

4. The emergency power supply with an isolation protection structure for large-scale power grid security protection according to claim 3, characterized in that: The supporting device includes a circular slider (151), a guide groove (152), a trapezoidal slider (153) and a slide groove (154), wherein the guide groove (152) is provided on the inner wall of the isolation plate (5), one end of the circular slider (151) is slidably mounted on the surface of the sliding seat (147), the other end of the circular slider (151) slides on the inner wall of the guide groove (152), the slide groove (154) is provided on the surface of the guide groove (152), and the trapezoidal slider (153) is slidably mounted on the inner wall of the slide groove (154).

5. The emergency power supply with an isolation protection structure for large-scale power grid safety protection according to claim 4, characterized in that: A rotating rod (155) is rotatably mounted on the inner wall of the guide groove (152), a rotating block (156) is fixedly mounted on the surface of the rotating rod (155), and a one-way baffle (157) is fixedly mounted on the surface of the rotating block (156), and the one-way baffle (157) is in contact with the surface of the guide groove (152).

6. The emergency power supply with an isolation protection structure for large-scale power grid safety protection according to claim 5, characterized in that: A No. 4 spring is provided between the circular slider (151) and the sliding seat (147), a No. 5 spring is provided between the trapezoidal slider (153) and the sliding groove (154), and a No. 1 torsion spring is provided between the guide groove (152) and the rotating rod (155).

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