Outdoor box-type substation

Abstract

The invention belongs to the technical field of box-type substations, and discloses an outdoor box-type substation, which comprises a box-type substation main body, a transformation cabinet body is fixedly connected in the box-type substation main body, a transformation element is fixedly connected in the transformation cabinet body, and a plurality of wire interfaces are fixedly connected to the bottom of the transformation element. Air in an air pressure bin expands due to temperature rise and heating, so that a sealing piston is pushed upwards to drive a rotating rod to be pushed upwards, the rotating rod moves to drive a second straight gear to rotate, and the second straight gear rotates to drive a first straight gear meshed with the second straight gear to rotate; the first straight gear rotates to drive the interface nut to rotate, the interface nut rotates to release threaded connection with the connecting wire, and the connecting wire falls off due to gravity and is disconnected with the element, so that power failure and protection of the internal element are realized, and great loss is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of box-type substations, and in particular relates to an outdoor box-type substation. Background Art

[0002] Box-type substation, also known as prefabricated substation or prefabricated substation, is a kind of factory prefabricated indoor and outdoor compact distribution equipment that integrates high-voltage switchgear, distribution transformer and low-voltage distribution device according to a certain wiring scheme, that is, the transformer step-down, low-voltage distribution and other functions are organically combined together, and installed in a moisture-proof, rust-proof, dust-proof, rat-proof, fire-proof, anti-theft, heat-insulating, fully enclosed, movable steel structure box, which is particularly suitable for urban network construction and transformation. It is a new type of substation that has emerged after civil substations. Box-type substations are usually equipped with five remote control functions, which perform remote signaling, remote measurement, remote control, remote adjustment and remote viewing inside the box-type substation to improve the efficiency of power grid operation and enhance the reliability of the system. In actual application, box-type substations are mostly installed outdoors. In the process of outdoor use, the box-type substation is installed on a cement base, and a large number of electrical equipment are installed inside it.

[0003] However, there are still some problems in the actual use of the existing outdoor box-type substation: first, there are many different wires inside the existing outdoor box-type transformer, which are connected to different electrical components. The electrical components are divided into important and secondary functions. After the internal components of the substation are short-circuited or the electronic components fail due to excessive temperature, the substation will be directly powered off. Sudden power outages during operation may cause the loss of important documents and economic losses, and will also cause damage to key equipment such as transformers and switches due to inability to withstand voltage mutations. Secondly, since the outdoor box-type transformer is used outdoors, when the external temperature is too low in winter, a certain temperature is required inside to maintain the equipment from being damaged by low temperature and its connectivity to avoid structural deformation or loose connection caused by the contraction of metal and other materials. Since the transformer itself generates heat energy when working, most components will be fixed with cooling aluminum sheets to help them quickly reduce their temperature. When the external temperature is too low, the cooling aluminum sheets in the existing technology will still be fixed to the components to make them lose temperature faster. At this time, the heat dissipation aluminum sheets will have a counter-effect. Summary of the invention

[0004] The object of the present invention is to provide an outdoor box-type substation to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an outdoor box-type substation, comprising a box-type substation body, a transformer cabinet is fixedly connected inside the box-type substation body, a transformer element is fixedly connected inside the transformer cabinet, a plurality of wire interfaces are fixedly connected to the bottom of the transformer element, a plurality of interface nuts are respectively threadedly connected to the outside of the plurality of wire interfaces, a plurality of first spur gears are respectively fixedly connected to the outside of the plurality of interface nuts, a plurality of connecting wires are respectively threadedly connected to the inside of the plurality of interface nuts, a plurality of fixed shells are respectively arranged on one side of the plurality of connecting wires, the fixed shells are fixedly connected to the transformer element, a plurality of fixed columns are respectively arranged inside the plurality of fixed shells, a plurality of fixed columns are fixedly connected to the transformer element, a plurality of second spur gears are respectively rotatably connected to the outside of the plurality of fixed columns, the first spur gears are meshed with the second spur gears, a spiral slide groove is provided on the outside of the bottom of the fixed column, a plurality of second spur gears are respectively provided on one side, a plurality of air pressure bins are respectively fixedly connected to the inside of the plurality of fixed shells, a rotating component is provided inside the air pressure bin, and a moving component is provided on one side of the bottom of the transformer element.

[0006] Preferably, the rotating assembly includes a sealing piston, which is slidably connected to the inside of the pneumatic chamber, a rotating groove is provided inside the sealing piston, a rotating rod is slidably connected to the inside of the rotating groove, a protrusion is fixedly connected to one side of the rotating rod, a T-shaped column is provided in the middle of the sealing piston, the T-shaped column is fixedly connected to the pneumatic chamber, a spring is fixedly connected to the bottom of the T-shape of the T-shaped column, and one end of the spring is in contact with the top of the sealing piston.

[0007] Preferably, the movable assembly includes two first fixed blocks, the two first fixed blocks are fixedly connected to one side of the bottom of the transformer element, the middle of the first fixed blocks is rotatably connected to a rotating shaft, a worm is provided in the middle of the two first fixed blocks, the worm is fixedly connected to the outside of the rotating shaft, a worm wheel is provided on one side of the worm, the worm wheel is fixedly connected to the outside of the interface nut, and one end of the rotating shaft is fixedly connected to a limiting column.

[0008] Preferably, the movable component includes a heat dissipation aluminum fin, which is arranged on one side of the transformer element, a limiting base is arranged at the bottom of the heat dissipation aluminum fin, a support block is arranged at the bottom of the limiting base, the support block is fixedly connected to the transformer cabinet, a second fixed block is fixedly connected to the bottom of the limiting base, the limiting column is rotatably connected to the inside of the second fixed block, and a T-shaped slot corresponding to the limiting column is opened inside the second fixed block.

[0009] Preferably, the outer side of the fixed column that cooperates with the moving component is rotatably connected to a worm gear, the tooth shapes and size parameters of the two worm gears match, and the staggered angles and directions of their axes are also the same.

[0010] Preferably, the arc shape of the protrusion matches the inner arc shape of the spiral groove, and the groove depth of the spiral groove is 2 mm.

[0011] Preferably, the opening position of the sliding groove corresponds to the rotating rod, and a section of the rotating rod is still inside the sliding groove when it is at the farthest end.

[0012] Preferably, the spring is in contact with the top surface of the sealing piston, and after the sealing piston moves away from the spring, the sealing piston loses contact with the spring.

[0013] Preferably, the rotating slot is T-shaped, the rotating rod is L-shaped, and a gap is left between the rotating slot and the top end of the rotating rod.

[0014] Preferably, the position of the second fixing block corresponds to that of the first fixing block, and the rotation axis is arranged in the middle of one side of the second fixing block.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention expands the air inside the air pressure chamber due to heating, thereby pushing the sealing piston upward, and the sealing piston pushes the rotating rod upward, the movement of the rotating rod drives the second spur gear to rotate, the rotation of the second spur gear drives the first spur gear meshing with it to rotate, the rotation of the first spur gear drives the interface nut to rotate, the rotation of the interface nut releases the threaded connection with the connecting wire, the connecting wire falls off due to gravity, and the connection with the component is disconnected, thereby achieving power off, protecting the internal components and preventing large losses.

[0016] 2. The present invention gradually increases the internal temperature. The larger the volume of the air inside the air pressure chamber expands, the greater the pressure on the spring and the higher the height of the increase. If the temperature is not high enough to compress the spring, the first spur gear will not rotate and the internal circuit of the transformer cabinet will not be powered off. At this time, it is achieved by setting the length and strength of the spring to control the elastic deformation of the spring and by coordinating with the internal temperature and the expansion pressure of the air inside the air pressure chamber to achieve segmented power outages, thereby avoiding the loss of important documents and economic losses caused by sudden power outages during operation due to direct power outages in the substation, and preventing key equipment such as transformers and switches from being damaged due to voltage mutations caused by sudden power outages.

[0017] 3. The present invention drives the worm to rotate and move through the rotation of the worm gear. The movement of the worm gear drives the heat sink aluminum sheet to move. The heat sink aluminum sheet moves close to the transformer element and contacts the transformer element, thereby increasing the heat dissipation area of ​​the transformer element, thereby improving the heat dissipation capacity. When the temperature is low, the sealing piston moves downward, thereby driving the worm gear and the worm to rotate in the opposite direction. The reverse movement of the worm gear and the worm gear drives the heat sink aluminum sheet to move in the opposite direction away from the transformer element, thereby reducing the heat dissipation area of ​​the transformer element and increasing the internal temperature to avoid the brittleness of the solid insulating material caused by low temperature, thereby reducing the risk of failure and at the same time avoiding the rupture of the insulating material caused by low temperature, thereby reducing the hidden danger of causing electrical fires. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the main body of the box-type substation of the present invention; Figure 3 is a cross-sectional view of a transformer cabinet of the present invention; Figure 4 A cross-sectional view of a fixed housing of the present invention; Figure 5 is a cross-sectional view of the air pressure chamber of the present invention; Figure 6 is a cross-sectional view of the sealing piston of the present invention; Figure 7 This is a schematic diagram of the structure of the mobile assembly of the present invention; Figure 8 is a structural schematic diagram of the second fixing block of the present invention; Fig. 9 It is a cross-sectional view of the second fixing block of the present invention.

[0019] In the figure: 1. Box-type substation body; 2. Transformer cabinet; 3. Transformer element; 4. Wire interface; 5. Interface nut; 6. First spur gear; 7. Connecting wires; 8. Fixed shell; 9. Fixed column; 10. Second spur gear; 11. Spiral slide; 12. Slide groove; 13. Air pressure chamber; 14. Sealing piston; 15. Rotating slide; 16. Rotating rod; 17. T-shaped column; 18. Spring; 19. First fixed block; 20. Rotating shaft; 21. Worm; 22. Worm wheel; 23. Limit column; 24. Heat dissipation aluminum sheet; 25. Limit base; 26. Support block; 27. Second fixed block; 28. Bump. DETAILED DESCRIPTION

[0020] The following will be combined with 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.

[0021] like Figures 1 to 9 As shown, an embodiment of the present invention provides an outdoor box-type substation, including a box-type substation body 1, a transformer cabinet 2 is fixedly connected inside the box-type substation body 1, a transformer element 3 is fixedly connected inside the transformer cabinet 2, a plurality of wire interfaces 4 are fixedly connected to the bottom of the transformer element 3, a plurality of interface nuts 5 are respectively threadedly connected to the outside of the plurality of wire interfaces 4, a plurality of first spur gears 6 are respectively fixedly connected to the outside of the plurality of interface nuts 5, a plurality of connecting wires 7 are respectively threadedly connected inside the plurality of interface nuts 5, a plurality of fixed shells 8 are respectively arranged on one side of the plurality of connecting wires 7, the fixed shells 8 are fixedly connected to the transformer element 3, a plurality of fixed columns 9 are respectively arranged inside the plurality of fixed shells 8, the plurality of fixed columns 9 are all fixedly connected to the transformer element 3, a plurality of second spur gears 10 are respectively rotatably connected to the outside of the plurality of fixed columns 9, the first spur gear 6 is meshedly connected with the second spur gear 10, and the fixed columns 8 are respectively arranged on one side of the plurality of connecting wires 7. A spiral slide groove 11 is provided on the outer side of the bottom of 9, and a sliding groove 12 is provided on one side of each of the multiple second spur gears 10. Multiple air pressure chambers 13 are fixedly connected to the interior of the multiple fixed shells 8, and a rotating component is provided inside the air pressure chamber 13. A moving component is provided on one side of the bottom of the transformer element 3. The air inside the air pressure chamber 13 expands due to the heating, thereby pushing the sealing piston 14 upward. The sealing piston 14 pushes the rotating rod 16 upward, and the rotating rod 16 moves to drive the second spur gear 10 to rotate. The second spur gear 10 rotates to drive the first spur gear 6 meshing with it to rotate. The first spur gear 6 rotates to drive the interface nut 5 to rotate. The interface nut 5 rotates to release the threaded connection with the connecting wire 7. The connecting wire 7 falls off due to gravity, thereby disconnecting the component, thereby achieving power failure, protecting the internal components, and preventing large losses.

[0022] Among them, the rotating assembly includes a sealing piston 14, which is slidably connected to the inside of the air pressure chamber 13. A rotating groove 15 is provided inside the sealing piston 14, and a rotating rod 16 is slidably connected inside the rotating groove 15. A protrusion 28 is fixedly connected to one side of the rotating rod 16. A T-shaped column 17 is provided in the middle of the sealing piston 14, and the T-shaped column 17 is fixedly connected to the air pressure chamber 13. A spring 18 is fixedly connected to the bottom of the T-shaped horizontal part of the T-shaped column 17, and one end of the spring 18 is in contact with the top of the sealing piston 14. As the internal temperature gradually increases, the larger the volume of the air in the air pressure chamber 13 expands, the greater the pressure on the spring 18. The larger the height, the higher the rise. If the temperature is not high enough to compress the spring 18, the first spur gear 6 will not rotate, and the internal circuit of the transformer cabinet 2 will not be powered off. At this time, it is achieved by setting the length and strength of the spring 18 to control the elastic deformation of the spring 18 and by coordinating with the internal temperature and the expansion pressure of the air in the air pressure chamber 13 to achieve segmented power outages, thereby avoiding the loss of important documents and economic losses caused by sudden power outages during work caused by direct power outages in the substation, and at the same time avoiding damage to key equipment such as transformers and switches due to the inability to withstand the voltage mutation caused by sudden power outages.

[0023] Among them, the moving component includes two first fixed blocks 19, the two first fixed blocks 19 are fixedly connected to one side of the bottom of the transformer element 3, the middle of the first fixed block 19 is rotatably connected with a rotating shaft 20, a worm 21 is arranged in the middle of the two first fixed blocks 19, the worm 21 is fixedly connected to the outside of the rotating shaft 20, a worm wheel 22 is arranged on one side of the worm 21, the worm wheel 22 is fixedly connected to the outside of the interface nut 5, one end of the rotating shaft 20 is fixedly connected to a limiting column 23, the moving component includes a heat dissipation aluminum sheet 24, the heat dissipation aluminum sheet 24 is arranged on one side of the transformer element 3, a limiting base 25 is arranged at the bottom of the heat dissipation aluminum sheet 24, a support block 26 is arranged at the bottom of the limiting base 25, the support block 26 is fixedly connected to the transformer cabinet 2, the bottom of the limiting base 25 is fixedly connected to a second fixed block 27, and the limiting column 23 is rotatably connected to the inside of the second fixed block 27, A T-shaped slot corresponding to the limiting column 23 is provided inside the second fixed block 27. When the worm wheel 22 rotates, the worm 21 is driven to rotate and move. The movement of the worm 21 drives the heat sink aluminum sheet 24 to move. The heat sink aluminum sheet 24 moves close to the transformer element 3 and contacts the transformer element 3, thereby increasing the heat dissipation area of ​​the transformer element 3, thereby improving the heat dissipation capacity. When the temperature is low, the sealing piston 14 moves downward, thereby driving the worm wheel 22 and the worm 21 to rotate in the opposite direction. The reverse movement of the worm wheel 22 and the worm 21 drives the heat sink aluminum sheet 24 to move in the opposite direction away from the transformer element 3, thereby reducing the heat dissipation area of ​​the transformer element 3 and increasing the internal temperature thereof to avoid the brittleness of the solid insulating material caused by low temperature, thereby reducing the risk of failure, and at the same time avoiding the rupture of the insulating material caused by low temperature, thereby reducing the hidden danger of causing electrical fire.

[0024] Among them, the outer side of the fixed column 9 that cooperates with the moving component is rotatably connected to the worm gear 22, the tooth profiles and size parameters of the two worm gears 22 match, and their axis staggered angles and directions are also the same, the arc of the protrusion 28 matches the inner arc of the spiral groove 11, and the groove depth of the spiral groove 11 is 2mm. The worm gear 22 is rotatably connected to the outer side of the fixed column 9 inside the fixed shell 8 close to the moving component. The tooth profile and size parameters of the worm gear 22 are matched, and their axis staggered angles and directions make them meshing, and the spiral groove 11 matches the arc of the protrusion 28, so that the protrusion 28 can move along the spiral groove 11 when moving upward.

[0025] Among them, the opening position of the sliding groove 12 corresponds to the rotating rod 16. When the rotating rod 16 is at the farthest end, there is still a section inside the sliding groove 12. The spring 18 contacts the top surface of the sealing piston 14. After the sealing piston 14 is away from the spring 18, the sealing piston 14 is out of contact with the spring 18. The shape of the rotating groove 15 is T-shaped, and the shape of the rotating rod 16 is L-shaped. There is a gap between the rotating groove 15 and the top of the rotating rod 16. The position of the second fixed block 27 corresponds to the first fixed block 19. The rotating shaft 20 is arranged in the middle of one side of the second fixed block 27. In order to enable the protrusion 28 to drive the second spur gear 10 to rotate when it rotates along the spiral groove 11, the second spur gear 10 is always arranged inside the second spur gear 10, so that the rotation of the rotating rod 16 can drive the second spur gear 10 to rotate. There is a gap between the rotating groove 15 and the top contact surface of the rotating rod 16 to prevent excessive friction, increase the friction coefficient, affect movement, and reduce wear.

[0026] Working principle: Screw the connecting wire 7 into the interface nut 5 and connect it to the wire interface 4 to connect the circuit. After the connection is made, the component works and generates heat. When the heat inside the transformer cabinet 2 is too high and needs to be powered off for protection, the air inside the air pressure chamber 13 expands due to the heating, thereby pushing the sealing piston 14 upward. The sealing piston 14 pushes the rotating rod 16 upward, and the movement of the rotating rod 16 drives the protrusion 28 upward. When the protrusion 28 moves upward, due to the setting of the spiral groove 11, the protrusion 28 will rotate along the spiral groove 11 and continue to lift upward. When the rotating rod 16 rotates, one section of the rotating rod 16 is set inside the second spur gear 10. When the rotating rod 16 rotates, it will drive the second spur gear 10 to rotate. The second spur gear 10 rotates to drive the first spur gear 6 meshing with it to rotate. The first spur gear 6 rotates to drive the interface nut 5 to rotate, and the interface nut 5 rotates to release the connection with The threaded connection of the connecting wire 7, the connecting wire 7 falls off due to gravity, thereby disconnecting from the component, thereby achieving power outage, protecting the internal components, and preventing large losses. At the same time, when the internal temperature gradually increases, the larger the volume of the air in the air pressure chamber 13 expands, the greater the pressure on the spring 18, and the higher the height of the increase. If the temperature is not enough to compress the spring 18, the first straight gear 6 will not rotate at this time, and the internal circuit of the transformer cabinet 2 will not be powered off. At this time, it is achieved by setting the length and strength of the spring 18 to control the elastic deformation of the spring 18 and by coordinating with the internal temperature and the expansion pressure of the air in the air pressure chamber 13 to achieve segmented power outage, avoiding the direct power outage of the substation, resulting in the loss of important documents and economic losses caused by sudden power outages during work, and at the same time, it can avoid damage to key equipment such as transformers and switches due to the inability to withstand the voltage mutation caused by sudden power outages; At the same time, when the temperature is too high, the worm wheel 22 rotates, which will drive the worm 21 to rotate and move. The movement of the worm 21 will drive the second fixed block 27 to move. The movement of the second fixed block 27 will drive the limiting base 25 to move. The limiting base 25 moves the heat dissipation aluminum sheet 24, and the heat dissipation aluminum sheet 24 moves close to the transformer element 3 and contacts the transformer element 3, thereby increasing the heat dissipation area of ​​the transformer element 3, thereby improving the heat dissipation capacity. When the temperature is low, the sealing piston 14 moves downward, thereby driving the worm wheel 22 and the worm 21 to rotate in the opposite direction. The reverse movement of the worm wheel 22 and the worm 21 drives the heat dissipation aluminum sheet 24 to move in the opposite direction away from the transformer element 3, thereby reducing the heat dissipation area of ​​the transformer element 3, so that the internal temperature can be increased to avoid the brittleness of the solid insulating material caused by low temperature, reduce the risk of failure, and at the same time avoid the rupture of the insulating material caused by low temperature, thereby reducing the hidden danger of causing electrical fires.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An outdoor box-type substation, comprising a box-type substation body (1), wherein a transformer cabinet (2) is fixedly connected inside the box-type substation body (1), a transformer element (3) is fixedly connected inside the transformer cabinet (2), a plurality of wire interfaces (4) are fixedly connected to the bottom of the transformer element (3), and a plurality of interface nuts (5) are respectively threadedly connected to the outer sides of the plurality of wire interfaces (4), characterized in that: A plurality of first spur gears (6) are fixedly connected to the outside of the plurality of interface nuts (5), a plurality of connecting wires (7) are threadedly connected to the inside of the plurality of interface nuts (5), a plurality of fixed housings (8) are provided on one side of the plurality of connecting wires (7), the fixed housings (8) are fixedly connected to the transformer element (3), a plurality of fixed columns (9) are provided inside the plurality of fixed housings (8), the plurality of fixed columns (9) are fixedly connected to the transformer element (3), a plurality of second spur gears (10) are rotatably connected to the outside of the plurality of fixed columns (9), the first spur gears (6) are meshingly connected to the second spur gears (10), a spiral groove (11) is provided on the outside of the bottom of the fixed column (9), a sliding groove (12) is provided on one side of the plurality of second spur gears (10), a plurality of air pressure chambers (13) are fixedly connected to the inside of the plurality of fixed housings (8), a rotating assembly is provided inside the air pressure chamber (13), and a moving assembly is provided on one side of the bottom of the transformer element (3).

2. The outdoor box-type substation according to claim 1 is characterized in that: The rotating assembly comprises a sealing piston (14), the sealing piston (14) is slidably connected to the inside of the air pressure chamber (13), a rotating groove (15) is provided inside the sealing piston (14), a rotating rod (16) is slidably connected inside the rotating groove (15), a protrusion (28) is fixedly connected to one side of the rotating rod (16), a T-shaped column (17) is provided in the middle of the sealing piston (14), the T-shaped column (17) is fixedly connected to the air pressure chamber (13), a spring (18) is fixedly connected to the bottom of the T-shaped lateral part of the T-shaped column (17), and one end of the spring (18) is in contact with the top of the sealing piston (14).

3. The outdoor box-type substation according to claim 2 is characterized in that: The moving assembly comprises two first fixed blocks (19), the two first fixed blocks (19) are fixedly connected to one side of the bottom of the transformer element (3), the middle of the first fixed blocks (19) is rotatably connected to a rotating shaft (20), a worm (21) is provided in the middle of the two first fixed blocks (19), the worm (21) is fixedly connected to the outside of the rotating shaft (20), a worm wheel (22) is provided on one side of the worm (21), the worm wheel (22) is fixedly connected to the outside of the interface nut (5), and one end of the rotating shaft (20) is fixedly connected to a limiting column (23).

4. The outdoor box-type substation according to claim 3 is characterized in that: The movable assembly comprises a heat dissipation aluminum sheet (24), the heat dissipation aluminum sheet (24) being arranged on one side of the transformer element (3), a limiting base (25) being arranged at the bottom of the heat dissipation aluminum sheet (24), a support block (26) being arranged at the bottom of the limiting base (25), the support block (26) being fixedly connected to the transformer cabinet (2), a second fixed block (27) being fixedly connected at the bottom of the limiting base (25), the limiting column (23) being rotatably connected to the inside of the second fixed block (27), and a T-shaped slot corresponding to the limiting column (23) being provided inside the second fixed block (27).

5. The outdoor box-type substation according to claim 4 is characterized in that: The outer side of the fixed column (9) matched with the moving component is rotatably connected to a worm gear (22), the tooth profiles and size parameters of the two worm gears (22) match, and their axis staggered angles and directions are also the same.

6. The outdoor box-type substation according to claim 5 is characterized in that: The arc shape of the protrusion (28) matches the inner arc shape of the spiral slide groove (11), and the groove depth of the spiral slide groove (11) is 2 mm.

7. The outdoor box-type substation according to claim 6 is characterized in that: The opening position of the sliding groove (12) corresponds to the rotating rod (16), and a section of the rotating rod (16) is still inside the sliding groove (12) when it is at the farthest end.

8. The outdoor box-type substation according to claim 7 is characterized in that: The spring (18) is in contact with the top surface of the sealing piston (14); after the sealing piston (14) moves away from the spring (18), the sealing piston (14) and the spring (18) are out of contact.

9. The outdoor box-type substation according to claim 8, characterized in that: The shape of the rotating slide groove (15) is T-shaped, the shape of the rotating rod (16) is L-shaped, and a gap is left between the top ends of the rotating slide groove (15) and the rotating rod (16).

10. The outdoor box-type substation according to claim 9, characterized in that: The position of the second fixing block (27) corresponds to that of the first fixing block (19), and the rotating shaft (20) is arranged in the middle of one side of the second fixing block (27).

Images