Box-type substation

Abstract

The invention relates to the technical field of transformer substations, and discloses a box-type transformer substation which comprises a box body, a containing groove is formed in one side of the box body, a box door structure is arranged in the box body, a first sliding groove and a second sliding groove are formed in the lower inner wall of the containing groove, and the box door structure comprises a first box door and a second box door. The second box door is rotationally connected with a ball inserted into the second sliding groove, and the box body is provided with a broaching structure capable of increasing the gap between the first box door and the second box door. The box body is provided with a storage groove, the lower inner wall of the storage groove is provided with a sliding hole, the reaming structure comprises a sliding block arranged in the sliding way in a sliding mode and a mounting base arranged in the sliding hole, the sliding block is provided with a communicating groove, the lower end face of the mounting base is provided with a mounting strip and a mounting block, and the mounting strip is provided with a through hole. And the second box door is located between the mounting strip and the mounting block, and a driving piece capable of driving the mounting base to slide in the sliding hole is arranged in the storage groove, and the effect of improving the heat dissipation performance of the transformer substation is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of substations, and in particular to a box-type substation. Background Art

[0002] The box-type substation is a distribution equipment that integrates high-voltage switchgear, distribution transformers and low-voltage distribution devices.

[0003] A box-type substation in the related art includes a box body, a receiving groove is provided on the side of the box body, and a sliding box door is provided in the box body.

[0004] When the electrical equipment inside the substation is working, the temperature inside the substation rises. The door of the substation is usually closed, that is, the substation is in a closed state, the air inside the box cannot be exchanged with the outside world, and the heat dissipation efficiency of the substation is low. Summary of the invention

[0005] In order to improve the heat dissipation performance of the box, the present application provides a box-type substation.

[0006] The present application provides a box-type substation, which adopts the following technical solution: A box-type substation, comprising a box body, a receiving groove is provided on one side of the box body, a box door structure capable of blocking the receiving groove is arranged in the box body, a first slide groove and a second slide groove are provided on the lower inner wall of the receiving groove, the second slide groove is located on the side of the first slide groove close to the bottom wall of the receiving groove, the box door structure comprises a first box door and a second box door located in the receiving groove, a ball inserted into the second slide groove is rotatably connected to the second box door, and an expansion structure capable of increasing the gap between the first box door and the second box door is arranged on the box body; a first slide groove and a second slide groove are provided on the lower inner wall of the receiving groove, and a first slide groove and a second slide groove are provided on the lower inner wall of the receiving groove. A slide in the shape of an arc-shaped groove is provided, and the slide is connected to the second slide groove. A storage groove is provided on the end surface of the box body where the accommodating groove is provided, and a sliding hole in the shape of an arc-shaped hole is provided on the lower inner wall of the storage groove. The hole expansion structure includes a sliding block slidably arranged in the slide and a mounting seat arranged in the sliding hole. A connecting groove that can be connected to the second slide groove is provided on the sliding block. A mounting strip and a mounting block are provided on the lower end surface of the mounting seat. The second box door is located between the mounting strip and the mounting block. A driving member that can drive the mounting seat to slide in the sliding hole is provided in the storage groove.

[0007] By adopting the above technical solution, when the second box door abuts against the side wall of the accommodating groove, the ball of the second box door away from the axis of the accommodating groove is located in the second sliding groove, and the ball of the second box door close to the axis of the accommodating groove is located in the sliding block. The driving member drives the mounting seat to move in the sliding hole, so that the mounting strip drives the second box door to rotate, thereby increasing the gap between the first box door and the second box door, improving the efficiency of the exchange between the air in the box and the outside air, improving the heat dissipation performance of the box, and improving the service life of the electrical equipment in the box.

[0008] Optionally, the driving member includes a mounting plate rotatably connected to the lower inner wall of the storage groove and a mounting frame arranged on the lower inner wall of the storage groove, the mounting plate is provided with a mounting shaft inserted into the sliding hole, the mounting shaft is connected to the mounting seat, and the mounting frame is provided with a rotating motor capable of driving the mounting plate to rotate.

[0009] By adopting the above technical solution, the rotating motor drives the mounting plate and the mounting shaft to rotate, and the mounting shaft drives the mounting seat to move in the sliding hole.

[0010] Optionally, a filtering structure located between the first door and the second door is provided in the receiving groove, and the filtering structure includes a fixing strip provided between the upper inner wall of the receiving groove and the lower inner wall of the receiving groove, the mounting strip extends downward and is connected to the slider, one end of the fixing strip away from the mounting strip abuts against the first door, and one end of the mounting strip away from the fixing strip abuts against the second door, and a mesh is provided between the fixing strip and the mounting strip.

[0011] By adopting the above technical solution, the mesh cloth filters the air passing through the fixing strip and the mounting strip, thereby reducing the entry of dust and foreign matter into the receiving groove, thereby protecting the electrical equipment in the receiving groove.

[0012] Optionally, a mounting groove is formed on the end surface of the mounting strip away from the first box door and passes through the mounting strip in a vertical direction. A mounting rod located in the mounting groove is rotatably connected between the slider and the mounting seat. The mesh cloth is wound around the mounting rod, one end of the mesh cloth is connected to the mounting rod, and the other end of the mesh cloth is connected to the fixed strip. A winding assembly capable of driving the mesh cloth to be wound is provided on the mounting seat.

[0013] By adopting the above technical solution, when the second door rotates toward the bottom wall of the accommodating groove, the mesh cloth between the fixing bar and the mounting bar is unfolded, so that the mesh cloth effectively blocks the gap between the second door and the first door; when the second door rotates toward the first door, the winding assembly winds up the mesh cloth.

[0014] Optionally, the winding assembly includes a gear sleeved on the outside of the mounting rod and a rack arranged on the outer inner wall of the sliding hole, the gear is located above the mounting seat, and the rack and the gear are meshed with each other.

[0015] By adopting the above technical solution, when the mounting seat moves in the sliding hole, the gear moves synchronously. Since the rack and the gear are meshed with each other, the gear rotates forward or reversely, and the mounting rod rotates forward or reversely, so that the mounting rod can roll or unfold the mesh.

[0016] Optionally, a clamping assembly capable of abutting against the mesh is provided in the mounting strip, a groove is provided on the inner wall of the mounting groove facing the central axis of the accommodating groove, the clamping assembly includes a pressure strip and a spring arranged in the groove, one end of the spring is fixedly connected to the bottom wall of the groove, and the other end of the spring abuts against the pressure strip.

[0017] By adopting the above technical solution, a force is applied to the pressure strip through the spring, so that the pressure strip presses the mesh cloth. On the one hand, the mesh cloth is not easy to wrinkle when the winding assembly is wound or unfolded; on the other hand, the gap between the mesh cloth and the side wall of the installation groove is blocked by the pressure strip, so that dust and foreign matter are not easy to enter the interior of the accommodating groove through the gap between the mesh cloth and the side wall of the installation groove.

[0018] Optionally, a cleaning structure is provided on the fixing bar, an operating groove is provided on the end surface of the fixing bar away from the axis of the accommodating groove, the cleaning structure includes an operating block inserted into the operating groove, and the operating block is provided with bristles toward the bottom wall of the operating groove.

[0019] By adopting the above technical solution, the operating block is removed from the fixing bar, and the mesh is cleaned with the help of a brush to improve the filtering effect of the mesh.

[0020] Optionally, a circular groove is provided on the lower end surface of the second box door, a cylinder is rotatably connected in the circular groove, and the ball is rotatably connected in the cylinder.

[0021] Optionally, a countersunk groove is provided on the lower inner wall of the storage groove, a circular hole is provided on the bottom wall of the countersunk groove, an insert block is passed through the circular hole, a circular ring located in the countersunk groove is provided on the outer circumferential surface of the insert block, and a slot for inserting the insert block is provided on the upper end surface of the second box door, and the axis of the slot is colinear with the axis of the circular groove; when the insert block is inserted into the slot, the second box door abuts against the side inner wall of the accommodating groove.

[0022] By adopting the above technical solution, when the second door abuts against the inner side wall of the accommodating groove, the slot is aligned with the insertion hole, and the insertion block is inserted into the slot, so that the second door can rotate about the axis of the insertion block.

[0023] Optionally, a solar panel is disposed on the top of the box, and a battery electrically connected to the solar panel is disposed in the storage slot.

[0024] By adopting the above technical solution, natural solar energy is converted into electrical energy through solar panels and stored in batteries, so that the batteries can power the rotating motor, thereby playing a role in environmental protection and energy saving.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the second door abuts against the side wall of the accommodating groove, the ball of the second door away from the axis of the accommodating groove is located in the second sliding groove, and the ball of the second door close to the axis of the accommodating groove is located in the sliding block. The driving member drives the mounting seat to move in the sliding hole, so that the mounting bar drives the second door to rotate, so that the gap between the first door and the second door is increased, the exchange efficiency between the air in the box and the outside air is improved, the heat dissipation performance of the box is improved, and the service life of the electrical equipment in the box is increased; 2. The air passing through the first door and the second door is filtered by the mesh to reduce the dust and impurities entering the receiving tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is an exploded view that highlights the door structure; Figure 3 It is a structural schematic diagram of the first box door; Figure 4 It is a top view of the box; Figure 5 is along Figure 4 Partial cross-sectional view along line AA; Figure 6 is a partial cross-sectional view highlighting the structure of the driving member; Figure 7 It is a schematic diagram highlighting the expansion structure; Figure 8 is an enlarged schematic diagram highlighting part B; Fig. 9 along Figure 7 Partial cross-sectional view along the CC line.

[0028] Figure numerals: 1, box body; 11, accommodating groove; 12, first slide groove; 13, second slide groove; 14, slideway; 15, storage groove; 16, sliding hole; 17, guide groove; 18, countersunk groove; 19, round hole; 2, box door structure; 21, first box door; 211, square groove; 212, roller; 22, second box door; 221, round groove; 222, cylinder; 223, ball bearing; 224, slot; 23, first stopper; 24, second stopper; 3, hole expansion structure; 31, slider; 311, connecting groove; 32, mounting seat; 321, guide block; 33, mounting block; 34 , mounting strip; 341, mounting slot; 342, groove; 35, driving member; 351, mounting frame; 352, mounting plate; 353, mounting shaft; 354, rotating motor; 4, filtering structure; 41, fixing strip; 411, operating slot; 42, mesh; 43, mounting rod; 44, winding assembly; 441, gear; 442, rack; 5, plug-in block; 51, ring; 6, clamping assembly; 61, pressure strip; 62, spring; 7, cleaning structure; 71, operating block; 72, operating bristles; 8, solar panel; 81, battery; 9, cleaning strip; 91, cleaning bristles. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-9 This application is described in further detail.

[0030] This embodiment discloses a box-type substation. Figure 1 and Figure 2 A box-type substation includes a box body 1, a box door structure 2, a hole expansion structure 3 and a filter structure 4. The box body 1 is provided with a receiving groove 11 on the end surface along the width direction, and the electrical equipment can be installed in the receiving groove 11.

[0031] Reference Figure 1 and Figure 2 The box door structure 2 is provided with two groups, and the two groups of box door structures 2 are symmetrically distributed about the vertical center axis of the box body 1. The box door structure 2 includes a first box door 21, a second box door 22, a first stopper 23 and a second stopper 24.

[0032] Reference Figure 1 and Figure 2 The lower inner wall of the receiving groove 11 is provided with a first slide groove 12, and the direction of the first slide groove 12 is consistent with the length direction of the box body 1. The first slide groove 12 extends to the inner wall of the receiving groove 11 along the length direction of the box body 1.

[0033] Reference Figure 2 and Figure 3There are two first doors 21, and both first doors 21 are slidably disposed in the first slide groove 12. The lower end surface of the first door 21 is provided with two square grooves 211, and rollers 212 are rotatably connected in the square grooves 211, and the rollers 212 are in contact with the bottom wall of the first slideway 14.

[0034] Reference Figure 1 and Figure 2 The first stopper 23 is fixedly connected to the bottom wall of the first chute 12, and the first stopper 23 is symmetrical with the vertical center axis of the box body 1. The first stopper 23 is located between the two first box doors 21. When the roller 212 contacts the first stopper 23, the first box door 21 is restricted from continuing to move.

[0035] Reference Figure 1 and Figure 2 The lower inner wall of the receiving groove 11 is provided with a second slide groove 13, and the second slide groove 13 is located on the side of the first slide groove 12 close to the bottom wall of the receiving groove 11. The direction of the second slide groove 13 is consistent with the length direction of the box body 1. The second slide groove 13 extends to the inner wall of the receiving groove 11 along the length direction of the box body 1.

[0036] Reference Figure 4 and Figure 5 There are two second door 22, and both second door 22 are slidably disposed in the second slide groove 13. Two circular grooves 221 are provided on the lower end surface of the second door 22, and a cylinder 222 is rotatably connected in the circular groove 221. A round rod is rotatably connected in the cylinder 222, and a ball 223 is disposed on the outer sleeve of the round rod. The ball 223 contacts the bottom wall of the second slideway 14.

[0037] Reference Figure 2 and Figure 5 The second stopper 24 is fixedly connected to the bottom wall of the second chute 13, and the second stopper 24 is symmetrical with the vertical center axis of the box body 1. The second stopper 24 is located between the two second door 22. When the ball 223 contacts the second stopper 24, the second door 22 is restricted from moving further.

[0038] Reference Figure 1 When the end faces of the two second doors 22 that are away from each other respectively abut against the inner wall of the accommodating groove 11 and the end faces of the two first doors 21 that are close to each other abut against each other, the first door 21 and the second door 22 block the accommodating groove 11.

[0039] Reference Figure 2 and Figure 5 The second door 22 is in contact with the inner side wall of the accommodating groove 11 , and the axis of the circular groove 221 of the second door 22 away from the second stopper 24 is set as a straight line L.

[0040] Reference Figure 6 and Figure 7The hole expansion structure 3 is provided with two groups, and the two groups of hole expansion structures 3 are arranged in the box body 1. The hole expansion structure 3 is used to increase the gap between the first box door 21 and the second box door 22. The hole expansion structure 3 includes a slider 31, a mounting seat 32, a mounting block 33, a mounting bar 34 and a driving member 35.

[0041] Reference Figure 8 , a slideway 14 is provided on the bottom wall of the receiving groove 11. The slideway 14 is in the shape of an arc groove. The horizontal distance between the slideway 14 and the axis of the receiving groove 11 gradually increases as it approaches the bottom wall of the receiving groove 11. The center axis of the slideway 14 is collinear with the straight line L. The slideway 14 is located at one end of the second slideway 13 close to the bottom wall of the receiving groove 11, and one end of the slideway 14 is connected to the second slideway 13.

[0042] Reference Figure 5 and Figure 8 The slider 31 is slidably disposed in the slideway 14, and a connecting groove 311 is formed on the upper end surface of the slider 31. When the slider 31 contacts the inner wall of the slideway 14 away from the bottom wall of the receiving groove 11, the connecting groove 311 is connected to the second slideway 14. When the second door 22 contacts the inner wall of the receiving groove 11 along the length direction, the roller 212 close to the second stopper 24 is located in the connecting groove 311.

[0043] Reference Figure 6 Two storage grooves 15 are provided on the end surface of the housing 1 where the receiving groove 11 is provided. The two storage grooves 15 are symmetrically distributed about the vertical center axis of the housing 1. A sliding hole 16 is provided on the lower inner wall of the storage groove 15. The sliding hole 16 is an arc-shaped hole. The sliding hole 16 is located directly above the slideway 14. The horizontal distance between the sliding hole 16 and the axis of the receiving groove 11 gradually increases as it approaches the bottom wall of the receiving groove 11. The center axis of the sliding hole 16 is collinear with the straight line L.

[0044] Reference Figure 6 and Figure 7 The inner and outer arc surfaces of the sliding hole 16 are both provided with guide grooves 17. The mounting seat 32 is slidably disposed in the sliding hole 16, and the inner and outer arc surfaces of the mounting seat 32 are both fixedly connected with guide blocks 321. The two guide blocks 321 are each slidably disposed in one guide groove 17.

[0045] Reference Figure 6 and Figure 7 The mounting block 33 is fixedly connected to the lower end surface of the mounting seat 32 , and the mounting block 33 is located on a side of the second door 22 facing the bottom wall of the accommodating groove 11 .

[0046] Reference Figure 6 and Figure 7 The mounting strip 34 is fixedly connected to the lower end surface of the mounting seat 32 , and the mounting strip 34 is located on the side of the second door 22 facing the first door 21 . The end surface of the mounting strip 34 away from the mounting seat 32 is fixedly connected to the slider 31 .

[0047] Reference Figure 6 and Figure 7 The driving member 35 is disposed in the storage slot 15 , and is used to drive the mounting seat 32 to move in the slide hole 16 . The driving member 35 includes a mounting frame 351 , a mounting plate 352 , a mounting shaft 353 and a rotating motor 354 .

[0048] Reference Figure 6 and Figure 7 The mounting frame 351 is fixedly connected to the lower inner wall of the storage tank 15 . The rotating motor 354 is fixedly connected to the upper end surface of the mounting frame 351 , and the output shaft of the rotating motor 354 is collinear with the straight line L. The output shaft of the rotating motor 354 is fixedly connected to the mounting plate 352 .

[0049] Reference Figure 6 and Figure 7 The mounting shaft 353 is fixedly connected to the lower end surface of the mounting plate 352 , the mounting shaft 353 is inserted into the sliding hole 16 , and one end of the mounting shaft 353 away from the mounting plate 352 is fixedly connected to the mounting seat 32 .

[0050] Reference Figure 5 The lower inner wall of the storage groove 15 is provided with a countersunk groove 18, and the bottom wall of the countersunk groove 18 is provided with a circular hole 19. The circular hole 19 is penetrated by an insert block 5, which is cylindrical, and the lower end surface of the insert block 5 is an arc-shaped surface. A circular ring 51 is fixedly connected to the outer circumferential surface of the insert block 5, and the circular ring 51 is located in the countersunk groove 18. The upper end surface of the second box door 22 is provided with a slot 224, and the slot 224 can be inserted into the insert block 5.

[0051] Reference Figure 1 and Figure 2 There are two groups of filter structures 4, and both groups of filter structures 4 are arranged in the box body 1. The filter structure 4 is used to filter the air passing through the first box door 21 and the second box door 22 to prevent foreign matter from entering the receiving groove 11.

[0052] Reference Figure 2 , Figure 6 and Figure 7 The filtering structure 4 includes a fixing bar 41, a mesh 42, a mounting rod 43 and a winding assembly 44. The fixing bar 41 is located on the side of the mounting bar 34 away from the second door 22, the upper end surface of the fixing bar 41 is fixedly connected to the upper inner wall of the receiving groove 11, and the lower end surface of the fixing bar 41 is fixedly connected to the lower inner wall of the receiving groove 11. The end surface of the fixing bar 41 away from the bottom wall of the receiving groove 11 contacts the first door 21.

[0053] Reference Figure 6 and Figure 7A mounting groove 341 is formed on one side of the mounting strip 34 away from the second door 22, and the mounting groove 341 vertically penetrates the mounting strip 34. A mounting rod 43 is disposed in the mounting groove 341, one end of the mounting rod 43 is rotatably connected to the slider 31, and the other end of the mounting rod 43 passes through the mounting seat 32 and extends above the mounting seat 32.

[0054] Reference Figure 7 and Fig. 9 The mesh 42 is wound around the mounting rod 43 , one end of the mesh 42 is fixedly connected to the mounting rod 43 , and the other end of the mesh 42 is fixedly connected to the fixing bar 41 .

[0055] Reference Figure 7 and Fig. 9 The reeling assembly 44 is used to reel the mesh 42. The reeling assembly 44 includes a rack 442 and a gear 441. The rack 442 is fixedly connected to the outer arc surface of the slide hole 16. The gear 441 is sleeved outside the mounting rod 43, the gear 441 is located above the mounting seat 32, and the gear 441 and the rack 442 are meshed with each other.

[0056] Reference Fig. 9 The mounting bar 34 is provided with a pressing assembly 6, which is used to press the mesh 42. The pressing assembly 6 includes a pressing strip 61 and a spring 62.

[0057] Reference Figure 6 and Fig. 9 The end surface of the mounting groove 341 close to the axis of the receiving groove 11 is provided with a groove 342, and the groove 342 penetrates the mounting strip 34 in the vertical direction. The pressure strip 61 and the spring 62 are both arranged in the groove 342, one end of the spring 62 is fixedly connected to the pressure strip 61, and the other end of the spring 62 is fixedly connected to the bottom wall of the groove 342. The spring 62 is in a compressed state. The end of the pressure strip 61 away from the spring 62 can abut against the mesh 42.

[0058] Reference Figure 6 and Fig. 9 The fixing bar 41 is provided with a cleaning structure 7, and the cleaning structure 7 can clean the mesh 42. An operating groove 411 is provided on the end surface of the fixing bar 41 away from the axis of the accommodating groove 11.

[0059] Reference Fig. 9 The cleaning structure 7 includes an operating block 71 and operating bristles 72. The operating block 71 can be inserted into the operating slot 411. The operating bristles 72 are fixedly connected to the operating block 71 toward the bottom wall of the operating slot 411.

[0060] Reference Figure 7 and Fig. 9The inner wall of the mounting groove 341 away from the groove 342 is detachably connected with a cleaning strip 9, and the cleaning strip 9 is located on the side of the mounting rod 43 away from the bottom wall of the mounting groove 341. The end surface of the cleaning strip 9 facing the groove 342 is fixedly connected with a cleaning bristle 91.

[0061] Reference Figure 1 and Figure 5 The top of the box body 1 is fixedly connected with a solar panel 8. The lower inner wall of the storage tank 15 is fixedly connected with a battery 81. The solar panel 8 and the rotating motor 354 are both electrically connected to the battery 81.

[0062] The implementation principle of a box-type substation in the embodiment of the present application is as follows: the second box door 22 is in contact with the inner wall of the accommodating groove 11. When the box body 1 needs to dissipate heat, the rotating motor 354 drives the mounting plate 352 to rotate, even if the mounting shaft 353 and the mounting seat 32 move in the sliding hole 16, so that the mounting bar 34 drives the second box door 22 to rotate, increasing the gap between the first box door 21 and the second box door 22, improving the heat dissipation effect of the box body 1, and at the same time the mesh 42 is unfolded to filter the air. Conversely, the rotating motor 354 drives the mounting plate 352 to rotate in the opposite direction, so that the second box door 22 rotates toward the first box door 21, reducing the gap between the first box door 21 and the second box door 22, and the winding assembly 44 drives the mesh 42 to be wound.

[0063] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A box-type substation, comprising a box body (1), a receiving groove (11) being provided on one side of the box body (1), and a box door structure (2) capable of blocking the receiving groove (11) being provided inside the box body (1), characterized in that: A first slide groove (12) and a second slide groove (13) are provided on the lower inner wall of the accommodating groove (11); the second slide groove (13) is located on the side of the first slide groove (12) close to the bottom wall of the accommodating groove (11); the door structure (2) comprises a first door (21) and a second door (22) located in the accommodating groove (11); the second door (22) is rotatably connected with a ball (223) inserted into the second slide groove (13); the box body (1) is provided with an expansion structure (3) capable of increasing the gap between the first door (21) and the second door (22); a slideway (14) in the shape of an arc groove is provided on the lower inner wall of the accommodating groove (11); the slideway (14) is connected to the second slide groove (13); the box body (1) A storage groove (15) is provided on the end surface of the receiving groove (11), and a sliding hole (16) in the shape of an arc hole is provided on the lower inner wall of the storage groove (15). The hole expansion structure (3) comprises a sliding block (31) slidably arranged in the slideway (14) and a mounting seat (32) arranged in the sliding hole (16). The sliding block (31) is provided with a connecting groove (311) which can be connected with the second sliding groove (13). The lower end surface of the mounting seat (32) is provided with a mounting strip (34) and a mounting block (33). The second box door (22) is located between the mounting strip (34) and the mounting block (33). A driving member (35) which can drive the mounting seat (32) to slide in the sliding hole (16) is provided in the storage groove (15).

2. A box-type substation according to claim 1, characterized in that: The driving member (35) comprises a mounting plate (352) rotatably connected to the lower inner wall of the storage groove (15) and a mounting frame (351) arranged on the lower inner wall of the storage groove (15); the mounting plate (352) is provided with a mounting shaft (353) inserted into the sliding hole (16); the mounting shaft (353) is connected to the mounting seat (32); and the mounting frame (351) is provided with a rotating motor (354) capable of driving the mounting plate (352) to rotate.

3. A box-type substation according to claim 2, characterized in that: A filter structure (4) located between the first door (21) and the second door (22) is arranged in the receiving groove (11), and the filter structure (4) includes a fixing strip (41) arranged between the upper inner wall of the receiving groove (11) and the lower inner wall of the receiving groove (11), the mounting strip (34) extends downward and is connected to the slider (31), one end of the fixing strip (41) away from the mounting strip (34) abuts against the first door (21), and one end of the mounting strip (34) away from the fixing strip (41) abuts against the second door (22), and a mesh cloth (42) is arranged between the fixing strip (41) and the mounting strip (34).

4. A box-type substation according to claim 3, characterized in that: The end surface of the mounting strip (34) away from the first box door (21) is provided with a mounting groove (341) which penetrates the mounting strip (34) in the vertical direction; a mounting rod (43) located in the mounting groove (341) is rotatably connected between the slider (31) and the mounting seat (32); the mesh cloth (42) is wound around the mounting rod (43); one end of the mesh cloth (42) is connected to the mounting rod (43), and the other end of the mesh cloth (42) is connected to the fixing strip (41); and a winding assembly (44) capable of driving the mesh cloth (42) to be wound is provided on the mounting seat (32).

5. A box-type substation according to claim 4, characterized in that: The winding assembly (44) comprises a gear (441) sleeved on the outside of the mounting rod (43) and a rack (442) arranged on the outer and inner walls of the sliding hole (16); the gear (441) is located above the mounting seat (32); and the rack (442) and the gear (441) are meshed with each other.

6. A box-type substation according to claim 4, characterized in that: A clamping assembly (6) capable of abutting against the mesh (42) is arranged in the installation strip (34), a groove (342) is provided on the inner wall of the installation groove (341) facing the central axis of the accommodating groove (11), and the clamping assembly (6) includes a pressure strip (61) and a spring (62) arranged in the groove (342), one end of the spring (62) is fixedly connected to the bottom wall of the groove (342), and the other end of the spring (62) abuts against the pressure strip (61).

7. A box-type substation according to claim 4, characterized in that: The fixing strip (41) is provided with a cleaning structure (7), an end surface of the fixing strip (41) away from the axis of the containing groove (11) is provided with an operating groove (411), the cleaning structure (7) comprises an operating block (71) inserted into the operating groove (411), and the operating block (71) is provided with operating bristles (72) in the direction of the bottom wall of the operating groove (411).

8. The box-type substation according to claim 1, characterized in that: A circular groove (221) is provided on the lower end surface of the second box door (22), a cylinder (222) is rotatably connected in the circular groove (221), and the ball (223) is rotatably connected in the cylinder (222).

9. A box-type substation according to claim 8, characterized in that: The lower inner wall of the storage groove (15) is provided with a countersunk groove (18), the bottom wall of the countersunk groove (18) is provided with a circular hole (19), an insert block (5) is inserted into the circular hole (19), the outer circumferential surface of the insert block (5) is provided with a circular ring (51) located in the countersunk groove (18), and the upper end surface of the second box door (22) is provided with a slot (224) for the insert block (5) to be inserted, and the axis of the slot (224) is colinear with the axis of the circular groove (221); when the insert block (5) is inserted into the slot (224), the second box door (22) abuts against the side inner wall of the accommodating groove (11).

10. A box-type substation according to claim 1, characterized in that: A solar panel (8) is arranged on the top of the box body (1), and a storage battery (81) electrically connected to the solar panel (8) is arranged in the storage slot (15).

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