Prefabricated transformer substation

Abstract

The invention relates to the technical field of transformer substations, and discloses a prefabricated transformer substation which comprises a box body, a placement groove is formed in the box body, a baffle is slidably connected in the placement groove, a containing groove is formed in the baffle, and a first containing plate and a second containing plate are rotatably connected in the containing groove; when an included angle is formed between the first containing plate and the second containing plate, the distance between the first containing plate and the second containing plate is gradually increased in the vertically-downward direction, a worker pulls a baffle and then rotates the first containing plate and the second containing plate, the included angle is formed between the first containing plate and the second containing plate, and therefore the worker can conveniently and rapidly carry out storage. The distance between the first containing plate and the second containing plate is gradually increased in the vertical downward direction, and therefore rainwater can smoothly fall down along the first containing plate or the second containing plate.

Description

Technical Field

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

[0002] Substation is an important component of an electric power system. Its main function is to convert high-voltage electricity into medium-voltage or low-voltage electricity to meet the electricity demand of different voltage levels. Most of the substations are located outdoors.

[0003] In the related art, a substation includes a box body, a placement groove is opened on the box body, and a baffle for shielding rainwater from falling is slidably connected in the placement groove.

[0004] When the staff is performing daily maintenance, they pull the baffle and rainwater will accumulate on the baffle. When the baffle is returned to the placement groove, the rainwater accumulated on the baffle will erode the placement groove. In the long run, the rainwater may affect the normal use of the substation. Summary of the invention

[0005] In order to improve the problem of high baffle height, the present application provides a prefabricated substation.

[0006] The present application provides a prefabricated substation, which adopts the following technical solution: A prefabricated substation includes a box body, a placement groove is provided on the box body, a baffle is slidably connected to the placement groove, a receiving groove is provided on the baffle, a first receiving plate and a second receiving plate are rotatably connected to the receiving groove; when the first receiving plate and the second receiving plate form an angle, the distance between the first receiving plate and the second receiving plate gradually increases in the vertical downward direction.

[0007] By adopting the above technical solution, the staff pulls the baffle and then rotates the first receiving plate and the second receiving plate to form an angle between the first receiving plate and the second receiving plate, so that the distance between the first receiving plate and the second receiving plate gradually increases in the vertical downward direction, so that rainwater can fall smoothly along the first receiving plate or the second receiving plate; the first receiving plate and the second receiving plate can be located in the receiving groove, and the rainwater can fall along the inclined direction of the first receiving plate and the second receiving plate without increasing the height of the baffle, so that the height of the baffle does not need to be too high to occupy the space of the electrical components in the substation, and the height of the box does not need to be increased while the rainwater can smoothly leave the baffle; lowering the height of the substation helps to simplify the equipment layout and reduce mutual interference between equipment, thereby improving the operational reliability of the substation.

[0008] Optionally, the first accommodating plate and the second accommodating plate are both slidably connected with guide blocks, the guide blocks are provided with limiting holes, the baffle plate is slidably connected with a limiting plate, and the limiting plate is provided with a limiting strip for inserting into the limiting hole; when the limiting strip is inserted into the limiting hole, the first accommodating plate and the second accommodating plate are both located in the accommodating groove.

[0009] By adopting the above technical solution, the limiting bar is inserted into the limiting hole, so that the limiting plate can limit the first accommodating plate and the second accommodating plate, so that the first accommodating plate and the second accommodating plate are both fixed in the accommodating groove, reducing the mutual movement of the first accommodating plate and the second accommodating plate, so as to facilitate the baffle to slide into the placement groove; the guiding block slides on the first accommodating plate so that the limiting bar is not aligned with the limiting hole, so that the guiding block will not affect the rotation of the first accommodating plate.

[0010] Optionally, a torsion spring is provided on the first accommodating plate, and the torsion spring drives the first accommodating plate to tilt up.

[0011] By adopting the above technical solution, the first accommodating plate is driven to tilt up by the torsion spring, and the staff does not need to manually drive the first accommodating plate, so that the first accommodating plate can support the second accommodating plate, thereby increasing the stability of the angle formed by the first accommodating plate and the second accommodating plate.

[0012] Optionally, a guide bar is slidably connected to the first accommodating plate, and a groove for inserting the guide bar is provided on the baffle plate; when the guide bar is inserted into the groove, an angle is formed between the first accommodating plate and the second accommodating plate.

[0013] By adopting the above technical solution, the guide bar is inserted into the groove to fix the first accommodating plate and the second accommodating plate, so that the first accommodating plate and the second accommodating plate form an angle, so that the first accommodating plate and the second accommodating plate can be fixed, reducing the possibility of shaking of the first accommodating plate and the second accommodating plate.

[0014] Optionally, a guide groove is provided on the first accommodating plate, the guide bar can block the guide groove, and a guide hole connected to the limiting hole is provided on the guide block; when the guide hole is connected to the guide groove, the guide block is inserted into the groove.

[0015] By adopting the above technical solution, when the first receiving plate is tilted, the guide block slides on the first receiving plate, allowing the guide block to drive the guide bar to move, so that the guide hole is connected to the guide groove, and the guide hole is connected to the guide groove, so that rainwater can slide from the first receiving plate into the guide groove, and the rainwater passes through the guide groove, the guide hole and the limiting hole in turn, so that the rainwater flows out from one side of the first receiving plate; when rainwater flows out of the first receiving plate, the staff can know that the guide block is located in the groove, so that the staff does not need to continue to rotate the first receiving plate and the second receiving plate.

[0016] Optionally, a movable groove is provided on the baffle plate, and the movable groove extends in a vertical direction. A movable groove is provided on the baffle plate, and the movable groove extends in a length direction of the baffle plate. A movable block is slidably connected to the limit plate, and the movable block is slidably connected to the movable groove and the movable groove. When the movable block is located in the movable groove, the limit plate abuts against the side of the first accommodating plate toward the bottom wall of the accommodating groove. When the movable block is located in the movable groove, the limit bar is located in the limit hole.

[0017] By adopting the above technical solution, the moving block moves in the moving groove, so that the limit bar is disengaged from the limit hole, so that the limit bar releases the restriction on the guide block, that is, the limit bar releases the restriction on the first accommodating plate and the second accommodating plate, so that the first accommodating plate and the second accommodating plate can rotate; the moving block moves from the moving groove to the movable groove, so that the limit plate can be located on the side of the first accommodating plate close to the accommodating groove, so that the limit plate can limit the first accommodating plate from rotating toward the bottom wall of the accommodating groove, further increasing the stability of the angle formed by the first accommodating plate and the second accommodating plate.

[0018] Optionally, a dehumidification groove is provided on the baffle, a dehumidification bag is provided in the dehumidification groove, a sliding plate is slidably connected to the baffle for sealing the dehumidification groove, and the sliding plate is located on the moving path of the moving block in the movable groove; when the moving block is located in the movable groove, the sliding plate does not seal the dehumidification groove.

[0019] By adopting the above technical solution, the moving block moves in the movable groove, and the moving block pushes the sliding plate so that the sliding plate does not block the dehumidification groove, so that the staff can replace the dehumidification bag. Since the air is relatively humid when it rains, the staff can replace the dehumidification bag during maintenance or daily inspections. There is no need for subsequent staff to unlock the dehumidification bag, which speeds up the staff's replacement of the dehumidification bag.

[0020] Optionally, a locking strip is slidably connected to the first accommodating plate, and a locking groove for inserting the locking strip is provided on the second accommodating plate; when the locking strip is inserted into the locking groove, the first accommodating plate and the second accommodating plate are fixed to each other, and at this time, the first accommodating plate and the second accommodating plate form an angle.

[0021] By adopting the above technical solution, the locking strip is inserted into the locking groove, so that the first accommodating plate and the second accommodating plate can be fixed to each other, so that the angle formed by the first accommodating plate and the second accommodating plate can be stable, thereby reducing the shaking of the first accommodating plate or the second accommodating plate due to the impact of rainwater.

[0022] Optionally, a locking bevel is provided on the locking strip, and the locking bevel is located on the moving path of the limiting plate. The distance between the locking bevel and the limiting plate gradually decreases along the direction from the locking strip to the bottom wall of the locking groove. When the limiting plate abuts against the first accommodating plate, the locking strip is inserted into the locking groove.

[0023] By adopting the above technical solution, the staff slides the limit plate, and the distance between the locking slope and the limit plate gradually decreases along the direction from the locking strip to the bottom wall of the locking groove. The limit plate can drive the locking strip to move through the locking slope, so that the locking strip can be smoothly inserted into the locking groove, thereby fixing the first accommodating plate and the second accommodating plate to each other, so that the staff does not need to slide the locking strip manually, reducing the staff's operating steps; at the same time, the limit plate abuts against the first accommodating plate and the second accommodating plate, increasing the stability of the angle formed by the first accommodating plate and the second accommodating plate.

[0024] Optionally, a receiving groove for inserting the limiting plate is provided on the box body; when the limiting plate is located in the receiving groove, the limiting strip is located in the limiting hole.

[0025] By adopting the above technical solution, the limit plate is located in the accommodating groove, so that the limit plate is not easy to slide on the baffle, reducing the problem of sliding of the limit plate due to vibration of the box body, so that the first accommodating plate and the second accommodating plate can be stably located in the accommodating groove.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The staff pulls the baffle, and then rotates the first receiving plate and the second receiving plate to form an angle between the first receiving plate and the second receiving plate, so that the distance between the first receiving plate and the second receiving plate gradually increases in the vertical downward direction, so that rainwater can fall smoothly along the first receiving plate or the second receiving plate; the first receiving plate and the second receiving plate can be located in the receiving groove, and the rainwater can fall along the inclined direction of the first receiving plate and the second receiving plate without increasing the height of the baffle, so that the height of the baffle does not need to be too high to occupy the space of the electrical components in the substation, and the height of the box does not need to be increased while the rainwater can smoothly leave the baffle; lowering the height of the substation helps to simplify the equipment layout and reduce mutual interference between equipment, thereby improving the operation reliability of the substation.

[0027] 2. By inserting the limiting strip into the limiting hole, the limiting plate can limit the first accommodating plate and the second accommodating plate, so that the first accommodating plate and the second accommodating plate are both fixed in the accommodating groove, reducing the mutual movement of the first accommodating plate and the second accommodating plate, so as to facilitate the baffle to slide into the placement groove; by sliding the guide block on the first accommodating plate, the limiting strip is not aligned with the limiting hole, so that the guide block will not affect the rotation of the first accommodating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is along Figure 1 Sectional view along line AA; Figure 3 is a schematic diagram of the structure of the highlight baffle in the embodiment of the present application; Figure 4 is along Figure 3 Partial cross-sectional view of the middle BB line; Figure 5 yes Figure 2 A magnified schematic diagram of part C; Figure 6 It is a structural schematic diagram highlighting the locking strip in the embodiment of the present application.

[0029] Figure numerals: 1, box body; 11, installation groove; 12, placement groove; 121, placement spring; 13, accommodating groove; 2, baffle; 21, accommodating groove; 211, torsion spring; 22, first accommodating plate; 23, second accommodating plate; 24, guide strip; 241, groove; 25, guide block; 251, guide hole; 252, guide groove; 253, drop hole; 254, limit hole; 26, movable groove; 261, movable groove; 27, locking strip; 271, locking groove; 272, locking slope; 3, limit plate; 31, movable block; 32, limit strip; 4, dehumidification groove; 41, block; 42, dehumidification bag; 43, through hole; 44, sliding spring; 45, sliding plate; 46, sliding block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-6 This application is described in further detail.

[0031] This embodiment discloses a prefabricated substation. Figure 1 and Figure 2 A prefabricated substation includes a box body 1, a mounting groove 11 is provided on the box body 1, and a power supply component is installed in the mounting groove 11. A placement groove 12 is provided on the box body 1, and a plurality of placement springs 121 are fixedly connected to the bottom wall of the placement groove 12, and the placement springs 121 extend along the length direction of the box body 1.

[0032] Reference Figure 2 , a baffle plate 2 is provided in the placement groove 12, and the baffle plate 2 is fixedly connected to the placement spring 121 on the surface close to the bottom wall of the placement groove 12, and the placement spring 121 drives the baffle plate 2 to protrude from the placement groove 12. When the baffle plate 2 is completely located in the placement groove 12, the placement spring 121 is in a compressed state. When the baffle plate 2 protrudes from the placement groove 12, the placement spring 121 is in a non-stressed state.

[0033] Reference Figure 3 A receiving groove 21 is provided on the surface of the baffle plate 2 away from the ground, and a first receiving plate 22 and a second receiving plate 23 are rotatably connected in the receiving groove 21. Two torsion springs 211 are fixedly connected in the receiving groove 21, one torsion spring 211 drives the first receiving plate 22 to rotate, and the other torsion spring 211 drives the second receiving plate 23 to rotate. The first receiving plate 22 tilts up on the side close to the torsion spring 211, and the second receiving plate 23 tilts up on the side close to the torsion spring 211, so that the first receiving plate 22 and the second receiving plate 23 form an angle, and at this time, the distance between the first receiving plate 22 and the second receiving plate 23 gradually increases in the vertical downward direction, so that rainwater can fall along the outer surfaces of the first receiving plate 22 and the second receiving plate 23.

[0034] Reference Figure 3 and Figure 4 The first receiving plate 22 and the second receiving plate 23 are both slidably connected with guide bars 24 on their sides, and the placement slot 12 is provided with two grooves 241 for inserting different guide bars 24. When the two guide bars 24 are respectively inserted into different guide grooves 252, the first receiving plate 22 and the second receiving plate 23 are both fixed on the baffle 2, and one side of the first receiving plate 22 and the second receiving plate 23 are both tilted, so that the first receiving plate 22 and the second receiving plate 23 form an angle.

[0035] Reference Figure 3 and Figure 4 The surfaces of the first receiving plate 22 and the second receiving plate 23 are slidably connected with a guide block 25, and a limiting hole 254 is provided on the surface of the guide block 25, and the limiting hole 254 extends in the vertical direction. A guide hole 251 is provided on the surface of the guide block 25 facing the placement groove 12, and the guide hole 251 is connected to the limiting hole 254. A guide groove 252 is provided on the surface of the first receiving plate 22 and the second receiving plate 23, and the guide groove 252 extends along the length direction of the baffle 2, and the guide bar 24 can block the opening of the guide groove 252. Two drop holes 253 are provided on the surface of the baffle 2, and when the guide hole 251 is connected to the guide groove 252, the limiting hole 254 is connected to the drop hole 253, so that rainwater falls from the drop hole 253.

[0036] Reference Figure 3 and Figure 4 When the guide bar 24 blocks the opening of the guide groove 252, the guide bar 24 is not in the groove 241, and the first receiving plate 22 is in the receiving groove 21. When the first receiving plate 22 is tilted, the guide bar 24 slides on the first receiving plate 22, and the guide bar 24 is inserted into the groove 241, so that the guide bar 24 can limit the rotation of the first receiving plate 22, and then the staff slides the guide block 25 to connect the guide hole 251 to the guide groove 252, so that rainwater can pass through the guide groove 252, the guide hole 251, the limit hole 254 and the drop hole 253 in sequence, allowing the rainwater to fall smoothly.

[0037] Reference Figure 2 and Figure 5 The baffle plate 2 is provided with a limit plate 3, and a moving block 31 is slidably connected on the surface of the limit plate 3 close to the ground. A moving groove 26 is provided on the surface of the baffle plate 2 away from the bottom wall of the placement groove 12, and the moving groove 26 extends in the vertical direction, and the moving groove 26 allows the moving block 31 to slide. A movable groove 261 is provided on the surface of the baffle plate 2 away from the ground, and the movable groove 261 extends in the length direction of the baffle plate 2, and the movable groove 261 is connected to the movable groove 26, and the movable groove 261 allows the moving block 31 to slide.

[0038] Reference Figure 3 , Figure 4 and Figure 5 , the limiting strip 32 is fixedly connected to the surface of the limiting plate 3, and the limiting strip 32 can be inserted into the limiting hole 254. When the first receiving plate 22 and the second receiving plate 23 are completely located in the receiving groove 21, the two guide blocks 25 can be vertically distributed, and the two guide holes 251 are connected to each other. When the limiting strip 32 is inserted into the limiting hole 254, the first receiving plate 22 and the second receiving plate 23 can be fixed to each other, and at this time, the first receiving plate 22 and the second receiving plate 23 are completely located in the receiving groove 21.

[0039] Reference Figure 2 and Figure 4 The wall of the placement groove 12 is provided with a receiving groove 13 for inserting the limiting block. When the limiting plate 3 is inserted into the receiving groove 13, the limiting strip 32 is still located in the two limiting holes 254, and the limiting plate 3 limits the movement of the baffle plate 2 in the placement groove 12, and the baffle plate 2 is completely located in the placement groove 12.

[0040] Reference Figure 3 , Figure 4 and Figure 5 When the moving block 31 is located in the moving groove 26, the staff slides the limit plate 3 upward to allow the limit bar 32 to disengage from the two limit holes 254, so that the guide block 25 can slide on the first accommodating plate 22 or the second accommodating plate 23, and then the staff rotates the first accommodating plate 22 and the second accommodating plate 23 to form an angle between the first accommodating plate 22 and the second accommodating plate 23, and then slides the limit plate 3 to allow the moving block 31 to move from the moving groove 26 to the active groove 261, so that the limit plate 3 abuts against the side of the first accommodating plate 22 close to the bottom wall of the accommodating groove 21.

[0041] Reference Figure 3 and Figure 6A locking strip 27 is slidably connected to the surface of the first receiving plate 22 near the bottom wall of the receiving groove 21, and a locking groove 271 for inserting the locking strip 27 is provided on the surface of the second receiving plate 23 near the bottom wall of the receiving groove 21. When the locking strip 27 is inserted into the locking groove 271, the first receiving plate 22 and the second receiving plate 23 are fixed to each other, and at this time, the first receiving plate 22 and the second receiving plate 23 form an angle.

[0042] Reference Figure 2 , Figure 5 and Figure 6 A locking slope 272 is provided on the surface of the locking bar 27, and the distance between the locking slope 272 and the bottom wall of the placement groove 12 gradually increases from the first accommodating plate 22 to the second accommodating plate 23, and the locking slope 272 is located on the moving path of the limiting plate 3. When the moving block 31 is located in the movable groove 261, the limiting plate 3 drives the locking bar 27 to move through the locking slope 272, so that the locking bar 27 can be inserted into the locking groove 271, so that the first accommodating plate 22 and the second accommodating plate 23 can be fixed to each other.

[0043] Reference Figure 2 and Figure 5 A dehumidification groove 4 is provided on the surface of the baffle plate 2 close to the ground, and a block 41 is fixedly connected to the groove wall of the dehumidification groove 4. A dehumidification bag 42 is placed in the dehumidification groove 4, and the dehumidification bag 42 can absorb moisture. A through hole 43 connected to the installation groove 11 is provided on the groove wall of the placement groove 12. When the baffle plate 2 is located in the placement groove 12, the through hole 43 is connected to the dehumidification groove 4.

[0044] Reference Figure 2 and Figure 5 A sliding spring 44 is fixedly connected to the groove wall of the dehumidification groove 4, a sliding plate 45 is fixedly connected to the surface of the sliding spring 44, and a sliding block 46 is fixedly connected to the surface of the sliding plate 45 away from the sliding spring 44. The sliding spring 44 drives the sliding plate 45 to abut against the dehumidification bag 42, and the sliding block 46 abuts against the side of the dehumidification bag 42 facing the through hole 43. When the sliding plate 45 abuts against the dehumidification bag 42, the sliding spring 44 is in a non-stressed state; when the sliding plate 45 does not abut against the dehumidification bag 42, and the sliding block 46 does not abut against the dehumidification bag 42, the sliding spring 44 is in a compressed state, and at this time, the limit plate 3 is fixed by friction to prevent the sliding spring 44 from driving the moving block 31 to slide in the movable groove 261.

[0045] Reference Figure 5, the sliding plate 45 extends into the movable groove 261, and the sliding plate 45 is located on the moving path of the moving block 31 in the movable groove 261. When the moving block 31 is located in the movable groove 261, the moving block 31 pushes the sliding plate 45 to move, so that the sliding plate 45 does not abut the dehumidification bag 42, and the sliding block 46 does not abut the dehumidification bag 42, and the staff can directly pull the dehumidification bag 42 out of the dehumidification groove 4, so that the dehumidification bag 42 can be replaced.

[0046] The implementation principle of a prefabricated substation in an embodiment of the present application is as follows: the staff slides the limit plate 3 to take the limit plate 3 out of the accommodating groove 13, at which time the baffle 2 extends out of the placement groove 12, and then the staff slides the limit plate 3 to allow the limit bar 32 to be able to disengage from the two limit holes 254, the staff slides the guide block 25, and then rotates the first accommodating plate 22 and the second accommodating plate 23 until the guide bar 24 is inserted into the groove 241, and the guide hole 251 is connected to the guide groove 252, allowing rainwater to fall from the drop hole 253, at which time the staff slides the limit plate 3 to allow the limit plate 3 to drive the locking bar 27 to be inserted into the locking groove 271 through the locking inclined surface 272, at which time the limit plate 3 abuts against the surface of the first accommodating plate 22 close to the bottom wall of the accommodating groove 21, completing the expansion of the first accommodating plate 22 and the second accommodating plate 23.

[0047] 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.

[0048] 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 prefabricated substation, comprising a box (1), wherein the box (1) is provided with a placement groove (12), wherein a baffle (2) is slidably connected in the placement groove (12), characterized in that: The baffle plate (2) is provided with a receiving groove (21), and a first receiving plate (22) and a second receiving plate (23) are rotatably connected in the receiving groove (21); when the first receiving plate (22) and the second receiving plate (23) form an angle, the distance between the first receiving plate (22) and the second receiving plate (23) gradually increases in a vertical downward direction.

2. A prefabricated substation according to claim 1, characterized in that: The first accommodating plate (22) and the second accommodating plate (23) are both slidably connected with a guide block (25), a limiting hole (254) is provided on the guide block (25), the baffle plate (2) is slidably connected with a limiting plate (3), and the limiting plate (3) is provided with a limiting strip (32) for inserting into the limiting hole (254); when the limiting strip (32) is inserted into the limiting hole (254), the first accommodating plate (22) and the second accommodating plate (23) are both located in the accommodating groove (21).

3. A prefabricated substation according to claim 2, characterized in that: A torsion spring (211) is provided on the first accommodating plate (22), and the torsion spring (211) drives the first accommodating plate (22) to tilt up.

4. A prefabricated substation according to claim 2, characterized in that: A guide bar (24) is slidably connected to the first accommodating plate (22), and a groove (241) for inserting the guide bar (24) is provided on the baffle plate (2); when the guide bar (24) is inserted into the groove (241), an angle is formed between the first accommodating plate (22) and the second accommodating plate (23).

5. A prefabricated substation according to claim 4, characterized in that: The first accommodating plate (22) is provided with a guide groove (252), the guide bar (24) is capable of blocking the guide groove (252), and the guide block (25) is provided with a guide hole (251) connected to the limiting hole (254); when the guide hole (251) is connected to the guide groove (252), the guide block (25) is inserted into the groove (241).

6. A prefabricated substation according to claim 2, characterized in that: The baffle plate (2) is provided with a movable groove (26), the movable groove (26) extending in a vertical direction; the baffle plate (2) is provided with a movable groove (261), the movable groove (261) extending in a length direction of the baffle plate (2); the limiting plate (3) is slidably connected with a movable block (31), the movable block (31) being slidably connected in the movable groove (26) and the movable groove (261); when the movable block (31) is located in the movable groove (261), the limiting plate (3) abuts against a side of the first accommodating plate (22) facing the bottom wall of the accommodating groove (21); when the movable block (31) is located in the movable groove (26), the limiting bar (32) is located in the limiting hole (254).

7. A prefabricated substation according to claim 6, characterized in that: A dehumidification groove (4) is provided on the baffle plate (2), a dehumidification bag (42) is provided in the dehumidification groove (4), a sliding plate (45) for sealing the dehumidification groove (4) is slidably connected to the baffle plate (2), and the sliding plate (45) is located on the moving path of the moving block (31) in the movable groove (261); when the moving block (31) is located in the movable groove (261), the sliding plate (45) does not seal the dehumidification groove (4).

8. The prefabricated substation according to claim 6, characterized in that: A locking strip (27) is slidably connected to the first accommodating plate (22), and a locking groove (271) is provided on the second accommodating plate (23) for inserting the locking strip (27); when the locking strip (27) is inserted into the locking groove (271), the first accommodating plate (22) and the second accommodating plate (23) are fixed to each other, and at this time, the first accommodating plate (22) and the second accommodating plate (23) form an angle.

9. A prefabricated substation according to claim 8, characterized in that: The locking strip (27) is provided with a locking bevel (272), the locking bevel (272) is located on the moving path of the limiting plate (3), the distance between the locking bevel (272) and the limiting plate (3) gradually decreases along the direction from the locking strip (27) to the bottom wall of the locking groove (271), and when the limiting plate (3) abuts against the first accommodating plate (22), the locking strip (27) is inserted into the locking groove (271).

10. A prefabricated substation according to claim 2, characterized in that: The box body (1) is provided with a receiving groove (13) for inserting the limiting plate (3); when the limiting plate (3) is located in the receiving groove (13), the limiting strip (32) is located in the limiting hole (254).

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