CN115207787A

CN115207787A - Integrated photovoltaic prefabricated substation

Info

Publication number: CN115207787A
Application number: CN202210799837.1A
Authority: CN
Inventors: 贺伍; 叶灿华; 沈辉
Original assignee: Huaxiang Xiangneng Technology Co Ltd
Current assignee: Huaxiang Xiangneng Technology Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-10-18

Abstract

The invention discloses an integrated photovoltaic pre-installed substation, which comprises a box body of the substation, wherein a mounting assembly for mounting equipment in the substation is arranged on the bottom wall of the box body in a transverse sliding manner, the mounting assembly comprises a plurality of mounting plates which are arranged on the bottom wall of the box body in a sliding manner, the mounting plates are sequentially distributed at intervals in a transverse direction, the mounting plates are connected through connecting pieces, a pulling assembly for pulling the mounting plates and changing the intervals among the mounting plates is arranged on the left side of the box body, an opening is formed in one side, close to the pulling assembly, of the box body, the lower side of the opening extends to the bottom wall of the box body, the pulling assembly comprises a side plate hinged to the lower side of the opening and used for sealing the opening, and a retracting assembly for enabling one side, away from the lower side of the opening, of the side plate to rotate towards one side, close to or away from the box body; the dragging assembly can drag the mounting plates onto the side plates, so that the distance between the mounting plates is increased, and the maintenance difficulty of the transformer substation is reduced and the working efficiency is improved.

Description

Integrated photovoltaic prefabricated substation

Technical Field

The invention relates to the technical field of transformer substations, in particular to an integrated photovoltaic pre-installed transformer substation.

Background

The integrated prefabricated substation is a compact complete distribution device formed by preassembling high-voltage equipment, a power transformer, low-voltage electrical equipment and auxiliary equipment, and is suitable for receiving and distributing electric energy in a three-phase alternating-current system with rated voltage and rated frequency of 50Hz or 60 Hz. It is especially suitable for public power distribution in city, high-rise building, park, highway and other places. Has the advantages of compact structure, strong set of performance, beautiful appearance, perfect five-prevention function and the like. The complete equipment for distribution and transformation has the outstanding effects of small occupied area, flexible site selection, convenient movement, short station building period, small investment and the like and is preferred by urban and rural power grids in particular in economy.

Due to the fact that the integration level of the integrated transformer substation is high, and the internal space of the integrated transformer substation is small, operation and construction are inconvenient when damaged equipment in the transformer substation needs to be replaced or maintained, and maintenance difficulty and working efficiency of the transformer substation are high.

Disclosure of Invention

The invention mainly aims to provide an integrated photovoltaic pre-installed substation, and aims to solve the technical problems of high maintenance difficulty and low working efficiency of the substation in the prior art.

In order to achieve the purpose, the integrated photovoltaic pre-installed substation comprises a box body of the substation, wherein the box body comprises a bottom wall facing the inner space of the box body, the bottom wall of the box body is transversely provided with an installation assembly in a sliding manner and used for installing equipment in the substation, the installation assembly comprises a plurality of installation plates transversely arranged on the bottom wall of the box body in a sliding manner, and each installation plate is used for installing substation equipment in the box body; the mounting plates are sequentially distributed at intervals transversely, the mounting plates are connected through connecting pieces, a pulling assembly used for pulling the mounting plates and changing the intervals among the mounting plates is arranged on one side of the box body, an opening is formed in the side wall, close to the pulling assembly, of the box body, and the lower side of the opening extends to the bottom wall of the box body;

the pulling assembly comprises a side plate and a retracting assembly, one end of the side plate is hinged to the lower side of the opening, the other end of the side plate rotates around the hinged end to seal the opening, and the retracting assembly is used for enabling one side of the side plate, which is far away from the lower side of the opening, to rotate towards one side close to or far away from the box body; when the curb plate transversely sets up and is close to one side of box and is on a parallel with ground, pull the subassembly and can transversely pull the mounting panel to the curb plate for interval grow between a plurality of mounting panels.

Preferably, it is a plurality of with the opening in the mounting panel at a distance from the diapire fixed connection of farthest mounting panel below and box, remaining a plurality of the mounting panel slides and sets up the diapire at the box, and one side transverse depression that each mounting panel is close to another adjacent mounting panel is formed with the slide opening, and the slide opening of each mounting panel is on same extension line, the connecting piece includes that one end slides in the slide opening on a mounting panel, and the other end is sliding connection slide bar in the slide opening of another adjacent mounting panel, it is equipped with the limiting plate that is used for preventing to connect slide bar roll-off slide opening to connect slide bar both ends symmetry respectively.

Preferably, a roller is arranged on one side of each mounting plate close to the bottom wall of the box body, a first sliding groove for the roller to roll is formed in the bottom wall of the box body in a concave mode, one end of the first sliding groove extends towards one side close to the opening and penetrates through the side wall of the box body, and a second sliding groove for the roller to slide is formed in one side, close to the box body, of the side plate in the opening in a concave mode; when the side plates are horizontally placed, the second sliding groove and the first sliding groove are on the same extension line; one side of the second sliding groove penetrates through the side wall of one side, close to the bottom wall of the box body, of the side plate, so that when one side, close to the box body, of the side plate and the bottom wall of the box body are located on the same horizontal plane, the second sliding groove is communicated with the first sliding groove.

Preferably, the pulling assembly further comprises a first motor which is arranged on the side plate and is arranged at the same side as the second sliding groove, a first line collecting wheel is connected to a motor shaft of the first motor, a first pull ring is arranged on a mounting plate close to the opening, and the first line collecting wheel is connected with the first pull ring through a first steel cable.

Preferably, fix at the box diapire one side that the mounting panel deviates from another mounting panel is equipped with the second motor, be equipped with second line concentration wheel on the motor shaft of second motor, the winding has the second cable wire on the second line concentration wheel, the one end that the second cable wire deviates from the second line concentration wheel runs through a plurality of mounting panels in proper order and is close to the fixed linking to each other of mounting panel of open-ended one side.

Preferably, the winding and unwinding assembly comprises a support arranged on one side of the box body deviating from the side plate, a third motor is arranged on the support, a third wire collecting wheel is arranged on a motor shaft of the third motor, a third steel cable is wound on the third wire collecting wheel, a plurality of pulleys are arranged on the top wall of the box body in a transverse interval distribution mode, a second pull ring is arranged on one side of the side plate close to the top wall of the box body, and one end of the third steel cable deviating from the third wire collecting wheel penetrates through the side wall of the box body and sequentially crosses each pulley to be connected with the second pull ring.

Preferably, one side recess that the curb plate deviates from the box is formed with a plurality of recesses, and is a plurality of the recess is the matrix and distributes, each be equipped with in the recess and rotate and be equipped with first supporting leg, box below four corners is equipped with the second supporting leg first supporting leg is placed when ground perpendicularly, and the last side of curb plate is located same horizontal plane with the diapire of box.

Preferably, the vertical air-supply line that runs through of box upside, the upper end mouth of pipe of air-supply line is towards the gradual grow in one side that deviates from the box, the mouth of pipe that the air-supply line deviates from box one end is equipped with and is used for carrying the fan in the box with the air, one side that the air-supply line deviates from the box is equipped with the weather shield, the face of weather shield forms the taper shape towards the outside protrusion in one side that deviates from the air-supply line, the weather shield is close to one side of air-supply line and links to each other through the outer wall of dead lever with the air-supply line, the vertical running through of diapire of box is equipped with the exhaust vent.

Preferably, the side of curb plate encircles and is equipped with the waterproof sealing washer that makes curb plate and opening sealing fit, one side that waterproof sealing washer is close to the box is the arc.

Preferably, one side that the curb plate deviates from the box is equipped with the handle that is used for pulling the curb plate, still be equipped with on the curb plate and be used for when the sealed opening of curb plate, make the pickproof lock that the curb plate was fixed on the box.

According to the technical scheme, the plurality of power transformation devices are installed on the installation plate in a one-to-one correspondence manner, so that the plurality of power transformation devices can be integrated and pre-installed in the box body; the side plate is vertically arranged and matched with the opening in an initial state, so that the side plate seals the opening to prevent rainwater from entering the box body from the opening; when equipment in the box body needs to be maintained, the side plate is manually pulled to enable one side, close to the top wall of the box body, of the side plate to rotate towards one side, away from the box body, of the side plate, so that one side, close to the box body, of the side plate and the bottom of the box body are on the same horizontal plane, meanwhile, the pulling assembly pulls one side mounting plate, closest to the opening, of the mounting plates, the mounting plate drives the other mounting plate, adjacent to the mounting plate, to move through the connecting piece, and when one mounting plate pulls the other mounting plate to move through the connecting piece, the distance between the one mounting plate and the other mounting plate is enlarged, so that the construction range of constructors is enlarged; through the mutual cooperation between the above-mentioned structure, when maintaining or changing the equipment in the transformer substation, can enlarge the interval between the equipment in the box of transformer substation to realize reducing the maintenance degree of difficulty of transformer substation and improve work efficiency's effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic overall cross-sectional configuration of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of a connector structure of the present invention;

FIG. 4 is a schematic view of the side panel of the present invention in an expanded configuration;

FIG. 5 is a partial schematic view of the side panel of the present invention;

FIG. 6 is an enlarged partial view of the area A in FIG. 4 according to the present invention;

fig. 7 is a schematic structural view of the retraction assembly of the present invention.

The reference numbers indicate:

1. a box body; 1a, an opening; 1b, a first chute; 2. mounting the component; 21. mounting a plate; 21a, a slide hole; 22. connecting a sliding rod; 23. a limiting plate; 24. a roller; 3. pulling the assembly; 31. a side plate; 31a, a second chute; 31b, a groove; 32. a first motor; 33. a first wire collecting wheel; 34. a first wire rope; 35. a second motor; 36. a second wire rope; 37. a second wire collecting wheel; 38. a first support leg; 39. a second support leg; 310. a handle; 311. an anti-theft lock; 312. a waterproof sealing ring; 313. a support; 314. a third motor; 315. a third steel cord; 316. a pulley; 317. a second tab; 4. an air inlet pipe; 5. a rain shield; 6. fixing the rod; 7. a fan.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an integrated photovoltaic pre-installed substation.

Referring to fig. 1 to 7, the integrated photovoltaic pre-installed substation comprises a box body 1 of the substation, wherein the box body 1 comprises a bottom wall facing an inner space of the box body 1, a mounting assembly 2 for mounting equipment in the substation is arranged on the bottom wall of the box body 1 in a transverse sliding manner, the mounting assembly 2 comprises a plurality of mounting plates 21 arranged on the bottom wall of the box body 1 in a transverse sliding manner, and each mounting plate 21 is used for mounting substation equipment in the box body 1; the mounting plates 21 are sequentially and transversely distributed at intervals, the mounting plates 21 are connected through connecting pieces, one side of the box body 1 is provided with a pulling assembly 3 for pulling the mounting plates 21 and changing the distance between the mounting plates 21, an opening 1a is formed in the side wall of the box body 1 close to one side of the pulling assembly 3, and the lower side of the opening 1a extends to the bottom wall of the box body 1;

the pulling assembly 3 comprises a side plate 31 and a retraction assembly, one end of the side plate 31 is hinged to the lower side of the opening 1a, the other end of the side plate 31 rotates around the hinged end to close the opening 1a, and the retraction assembly is used for enabling one side of the side plate 31, which is far away from the lower side of the opening 1a, to rotate towards one side close to or far away from the box body 1; when the side plate 31 is transversely arranged and one side close to the box body 1 is parallel to the ground, the pulling assembly 3 can transversely pull the mounting plates 21 onto the side plate 31, so that the intervals among the mounting plates 21 are increased.

In the technical scheme of the invention, a plurality of power transformation devices are correspondingly arranged on the mounting plate 21 one by one, so that the plurality of power transformation devices can be integrated and pre-installed in the box body 1; in the initial state, the side plate 31 is vertically arranged and matched with the opening 1a, so that the side plate 31 seals the opening 1a to prevent rainwater from entering the box body 1 from the opening 1a; when equipment in the box body 1 needs to be maintained, the side plate 31 is manually pulled to enable one side, close to the top wall of the box body 1, of the side plate 31 to rotate towards one side, away from the box body 1, so that the side plate 31 is horizontally placed, meanwhile, the pulling assembly 3 pulls one side mounting plate 21, closest to the opening 1a, of the mounting plates 21, so that the mounting plate 21 drives another mounting plate 21 adjacent to the mounting plate 21 to move through the connecting piece, and when one mounting plate 21 pulls the other mounting plate 21 to move through the connecting piece, the distance between one mounting plate 21 and the other mounting plate 21 is expanded, so that the construction range of a constructor is expanded; through the mutual cooperation between the above-mentioned structure, when keeping in repair or changing the equipment in the transformer substation, can enlarge the interval between the equipment in the box 1 of transformer substation to realize reducing the maintenance degree of difficulty of transformer substation and improving work efficiency's effect.

Referring to fig. 3, the lower portion of the mounting plate 21 farthest from the opening 1a among the mounting plates 21 is fixedly connected to the bottom wall of the box 1, the remaining mounting plates 21 are slidably disposed on the bottom wall of the box 1, a sliding hole 21a is transversely recessed on one side of each mounting plate 21 close to another adjacent mounting plate 21, the sliding hole 21a of each mounting plate 21 is on the same extension line, the connecting member includes a sliding rod 22 slidably connected to one end of the sliding hole 21a of one mounting plate 21 and the other end of the sliding rod 22 slidably connected to the sliding hole 21a of another adjacent mounting plate 21, two ends of the connecting rod 22 are respectively and symmetrically provided with a limiting plate 23 for preventing the connecting rod 22 from sliding out of the sliding hole 21a, when one mounting plate 21 moves, the connecting rod 22 can slide toward the side away from the mounting plate 21 by the limiting plates 23 at two ends of the connecting rod 22, so as to drive another mounting plate 21 adjacent to move, and since another mounting plate 21 is driven by the connecting rod 22, the distance between the two mounting plates 21 is increased.

Referring to fig. 1 and 4, a roller 24 is disposed on one side of each mounting plate 21 close to the bottom wall of the box body 1, a first sliding groove 1b for the roller 24 to roll is formed in the bottom wall of the box body 1 in a recessed manner, one end of the first sliding groove 1b extends towards one side close to the opening 1a and penetrates through the side wall of the box body 1, and a second sliding groove 31a for the roller 24 to slide is formed in one side of the side plate 31 located in the opening 1a close to the box body 1 in a recessed manner; when the side plate 31 is laid flat, the second chute 31a and the first chute 1b are on the same extension line; the side wall of the side plate 31 close to the bottom wall of the box body 1 is penetrated through the side wall of the second chute 31a, so that when the side of the side plate 31 close to the box body 1 and the bottom wall of the box body 1 are on the same horizontal plane, the second chute 31a is communicated with the first chute 1b, when the side plate 31 is horizontally placed to enable the upper side of the side plate 31 and the bottom wall of the box body 1 to be on the same horizontal plane, the mounting plate 21 rolls in the first chute 1b and the second chute 31a through the roller 24, and the mounting plate 21 can be moved to the side plate 31 from the bottom wall of the box body 1.

Referring to fig. 4-5, the pulling assembly 3 further includes a first motor 32 disposed on the side plate 31 and disposed on the same side as the second chute 31a, a motor shaft of the first motor 32 is connected to a first wire collecting wheel 33, a first pull ring is disposed on a mounting plate 21 near the opening 1a, the first wire collecting wheel 33 is connected to the first pull ring through a first steel cable 34, and the first motor 32 can drive the mounting plate 21 near the opening 1a to move toward a side away from the box body 1 through the first steel cable 34 and move onto the side plate 31.

Referring to fig. 4 and 6, a second motor 35 is disposed on a side of the mounting plate 21 away from the other mounting plate 21, which is fixed on the bottom wall of the box body 1, a second wire collecting wheel 37 is disposed on a motor shaft of the second motor 35, a second wire rope 36 is wound on the second wire collecting wheel 37, one end of the second wire rope 36 away from the second wire collecting wheel 37 sequentially penetrates through the mounting plates 21 and is fixedly connected with the mounting plate 21 on a side close to the opening 1a, the second wire collecting wheel 37 is driven to rotate by the rotation of the second motor 35, the second wire rope 36 can be wound on the second wire collecting wheel 37 and simultaneously drives the mounting plates 21 to move, and all the mounting plates 21 are accommodated in the box body 1.

Referring to fig. 7, the winding and unwinding assembly includes a bracket 313 disposed on a side of the box 1 away from the side plate 31, the bracket 313 is provided with a third motor 314, a motor shaft of the third motor 314 is provided with a third wire collecting wheel, a third steel cable 315 is wound on the third wire collecting wheel, a plurality of pulleys 316 are disposed on the top wall of the box 1 at intervals, one side of the side plate 31 close to the top wall of the box 1 is provided with a second pull ring 317, one end of the third steel cable 315 away from the third wire collecting wheel penetrates through the side wall of the box 1 and sequentially passes over each pulley 316 to be connected with the second pull ring 317, the third wire collecting wheel 315 is driven to rotate by the rotation of the third motor 314, the third wire collecting wheel 315 can be wound onto the third wire collecting wheel, so that the third steel cable 315 pulls the upper side plate 31 to move towards the side close to the box 1, and the side plate 31 blocks and seals the opening 1 a.

Referring to fig. 1-2, a plurality of grooves 31b are formed in a groove 31b on one side of the side plate 31 departing from the box body 1, the plurality of grooves 31b are distributed in a matrix shape, a first supporting leg 38 is rotatably arranged in each groove 31b, second supporting legs 39 are arranged at four corners below the box body 1, when the first supporting leg 38 is vertically placed on the ground, the upper side surface of the side plate 31 and the bottom wall of the box body 1 are located on the same horizontal plane, when the side plate 31 rotates towards one side departing from the box body 1, the first supporting leg 38 always keeps a vertical state under the influence of weight, and the first supporting leg 38 abuts against the ground to support the side plate 31.

Please refer to fig. 1, the vertical air-supply line 4 that runs through of 1 upside of box, the upper end mouth of pipe of air-supply line 4 is towards the one side grow gradually that deviates from box 1, the mouth of pipe that deviates from 1 one end of box of air-supply line 4 is equipped with and is used for carrying the fan 7 in the box 1 with the air, the one side that deviates from box 1 of air-supply line 4 is equipped with weather shield 5, the face of weather shield 5 outwards bulges towards the one side that deviates from air-supply line 4 and forms the taper shape, the one side that weather shield 5 is close to air-supply line 4 links to each other with the outer wall of air-supply line 4 through dead lever 6, the vertical exhaust vent that runs through of diapire of box 1 carries the outside air in the box 1 through fan 7 to the air in the box 1 discharges from the exhaust vent for the air in the box 1 and external convection current, realize the effect of cooling to the equipment in the box 1, the mouth of pipe of growing gradually can prevent that the rainwater from pouring into in the box 1.

Referring to fig. 7, a waterproof sealing ring 312 which enables the side plate 31 to be in sealing fit with the opening 1a is arranged around the side edge of the side plate 31, one side of the waterproof sealing ring 312, which is close to the box body 1, is arc-shaped, and the side plate 31 can be realized through the waterproof sealing ring 312, so that water flow is prevented from entering the box body 1 from a gap between the side plate 31 and the opening 1 a.

Referring to fig. 2, a handle 310 for pulling the side plate 31 is disposed on a side of the side plate 31 away from the box body 1, an anti-theft lock 311 for fixing the side plate 31 to the box body 1 when the side plate 31 seals the opening 1a is further disposed on the side plate 31, the handle 310 can pull an upper side of the side plate 31 to rotate towards the side away from the box body 1, and the anti-theft lock 311 can prevent a non-worker from pulling the side plate 31, so as to prevent the equipment in the box body 1 from being maliciously damaged.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An integrated photovoltaic pre-installed substation is characterized by comprising a box body of the substation, wherein the box body comprises a bottom wall facing the inner space of the box body, an installation assembly used for installing equipment in the substation is arranged on the bottom wall of the box body in a transverse sliding mode, the installation assembly comprises a plurality of installation plates arranged on the bottom wall of the box body in a transverse sliding mode, and each installation plate is used for installing substation equipment in the box body; the mounting plates are sequentially distributed at intervals transversely, the mounting plates are connected through connecting pieces, a pulling assembly used for pulling the mounting plates and changing the intervals among the mounting plates is arranged on one side of the box body, an opening is formed in the side wall, close to the pulling assembly, of the box body, and the lower side of the opening extends to the bottom wall of the box body;

the pulling assembly comprises a side plate and a retracting assembly, one end of the side plate is hinged to the lower side of the opening, the other end of the side plate rotates around the hinged end to seal the opening, and the retracting assembly is used for enabling one side of the side plate, which is far away from the lower side of the opening, to rotate towards one side close to or far away from the box body; when the lateral plate is transversely arranged and one side close to the box body is parallel to the ground, the mounting plates can be transversely pulled to the lateral plate by the pulling assembly, so that the distance between the mounting plates is increased.

2. The integrated photovoltaic pre-installed substation of claim 1, characterized in that, a plurality of the mounting plates are fixedly connected with the bottom wall of the box body below the mounting plate which is farthest away from the opening, the rest mounting plates are slidably arranged on the bottom wall of the box body, a sliding hole is formed in one side of each mounting plate, which is close to the other adjacent mounting plate, in a transverse concave manner, the sliding hole of each mounting plate is on the same extension line, the connecting piece comprises a sliding hole with one end sliding in the mounting plate and the other end sliding-connected with a sliding rod in the sliding hole of the other adjacent mounting plate, and limiting plates for preventing the connecting sliding rod from sliding out of the sliding hole are symmetrically arranged at the two ends of the connecting sliding rod respectively.

3. The integrated photovoltaic pre-installed substation according to claim 1, wherein a roller is disposed on one side of each mounting plate close to the bottom wall of the box body, a first sliding groove for the roller to roll is formed in the bottom wall of the box body in a recessed manner, one end of the first sliding groove extends towards one side close to the opening and penetrates through the side wall of the box body, and a second sliding groove for the roller to slide is formed in one side of the side plate in the opening close to the box body in a recessed manner; when the side plates are horizontally placed, the second sliding groove and the first sliding groove are on the same extension line; one side of the second sliding groove penetrates through the side wall of one side, close to the bottom wall of the box body, of the side plate, so that when one side, close to the box body, of the side plate and the bottom wall of the box body are on the same horizontal plane, the second sliding groove is communicated with the first sliding groove.

4. The integrated photovoltaic pre-installed substation of claim 3, wherein the pulling assembly further comprises a first motor disposed on the side plate and disposed on the same side as the second chute, a first wire collecting wheel is connected to a motor shaft of the first motor, a first pull ring is disposed on a mounting plate close to the opening, and the first wire collecting wheel is connected to the first pull ring through a first steel cable.

5. The integrated photovoltaic pre-installed substation of claim 4, wherein a second motor is arranged on one side, away from the other mounting plate, of the mounting plate fixed on the bottom wall of the box body, a second wire collecting wheel is arranged on a motor shaft of the second motor, a second wire rope is wound on the second wire collecting wheel, and one end, away from the second wire collecting wheel, of the second wire rope sequentially penetrates through the mounting plates and is fixedly connected with the mounting plate on one side close to the opening.

6. The integrated photovoltaic pre-installed substation of claim 1, wherein the retractable assembly comprises a support arranged on one side of the box body away from the side plate, a third motor is arranged on the support, a third wire collecting wheel is arranged on a motor shaft of the third motor, a third steel cable is wound on the third wire collecting wheel, a plurality of pulleys are distributed on the top wall of the box body at intervals in the transverse direction, a second pull ring is arranged on one side of the side plate close to the top wall of the box body, and one end of the third steel cable away from the third wire collecting wheel penetrates through the side wall of the box body and sequentially crosses each pulley to be connected with the second pull ring.

7. The integrated photovoltaic preassembled transformer substation of claim 1, wherein a plurality of grooves are formed in one side of the side plate, which faces away from the box body, the grooves are distributed in a matrix shape, a first supporting leg is rotatably arranged in each groove, second supporting legs are arranged at four corners below the box body, and when the first supporting leg is vertically placed on the ground, the upper side surface of the side plate and the bottom wall of the box body are located on the same horizontal plane.

8. The integrated photovoltaic pre-installed substation of claim 1, wherein an air inlet pipe vertically penetrates through the upper side of the box body, an upper end pipe orifice of the air inlet pipe gradually becomes larger towards one side departing from the box body, a fan used for conveying air into the box body is arranged at a pipe orifice of the air inlet pipe departing from one end of the box body, a rain baffle is arranged at one side of the air inlet pipe departing from the box body, a plate surface of the rain baffle outwards protrudes towards one side departing from the air inlet pipe to form a conical shape, one side, close to the air inlet pipe, of the rain baffle is connected with the outer wall of the air inlet pipe through a fixing rod, and an air outlet hole vertically penetrates through the bottom wall of the box body.

9. The integrated photovoltaic pre-installed substation of claim 1, wherein the side edge of the side plate is surrounded by a waterproof sealing ring which enables the side plate to be in sealing fit with the opening, and one side of the waterproof sealing ring, which is close to the box body, is arc-shaped.

10. The integrated photovoltaic pre-installed substation of claim 1, wherein a handle for pulling the side plate is arranged on one side of the side plate, which faces away from the box body, and an anti-theft lock for fixing the side plate on the box body when the side plate seals the opening is further arranged on the side plate.