A prefabricated power cabin for underground substation construction and construction method

Abstract

The present invention relates to the technical field of prefabricated cabins, specifically to an electric power prefabricated cabin for construction of underground substations, comprising a prefabricated cabin body, wherein the prefabricated cabin body is fixedly mounted on a mounting base, a cabin body bottom plate is fixedly arranged at the lower end of the prefabricated cabin body, a cabin body top plate is fixedly arranged at the upper end, and first plug-in slots are symmetrically provided at both ends of the cabin body bottom plate, a first inner supporting rod is fixedly provided in the first plug-in slot, storage grooves are symmetrically provided at both ends of the prefabricated cabin body, second plug-in slots are symmetrically provided at both ends of the cabin body top plate, a second inner supporting rod is fixedly provided in the second plug-in slot, and the present invention also relates to an installation and construction method for an electric power prefabricated cabin, comprising the following steps: step one: positioning the prefabricated cabin body; step two: fixing the first layer of the prefabricated cabin body; step three: connecting the prefabricated cabin body with the ventilation branch pipe; step four: fixing the second layer of the prefabricated cabin body; step five: fixing the third layer of the prefabricated cabin body.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated cabins, and in particular to a prefabricated power cabin for underground substation construction and a construction method thereof. Background Art

[0002] Underground substation is a special substation construction form adopted when conventional ground substation cannot be built. Substation can be built independently or in combination with other buildings (structures). The design of underground substation must be closely integrated with urban planning and the overall planning of underground buildings, and comprehensively considered with factors such as project scale, overall layout of substation, underground building ventilation, fire protection, equipment transportation, personnel access and environmental protection. It is a very complex power project. In order to reduce the construction period to a certain extent during the construction of underground substation, power prefabricated cabin is usually used. Power prefabricated cabin is a prefabricated modular power equipment, which is mainly used for the construction and expansion of power system. After the installation and commissioning of all internal equipment in the power prefabricated cabin are completed in the factory, it is transported to the underground substation. At the construction site, its modular design allows the power prefabricated cabin to be quickly installed in place, and usually only simple connection and debugging work is required, which improves the construction efficiency of the underground substation to a certain extent. However, it still has certain shortcomings. Although the power prefabricated cabin is modular in design, it saves a lot of time in the installation and debugging of internal equipment. However, it cannot be quickly and conveniently fixed on the installation base during installation, which makes the installation take more time. Not only does it increase the workload of the staff, but it also affects the efficiency of the underground substation construction. Moreover, since it is an underground substation, ventilation ducts are provided, and the power prefabricated cabin cannot be connected to the ventilation ducts during installation to further improve its ventilation effect and efficiency. Summary of the Invention

[0003] The object of the present invention is to provide a prefabricated power cabin for underground substation construction and a construction method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A prefabricated power cabin for underground substation construction, comprising a prefabricated cabin body, wherein the prefabricated cabin body is fixedly mounted on a mounting base, a cabin body bottom plate is fixedly arranged at the lower end of the prefabricated cabin body, a cabin body top plate is fixedly arranged at the upper end, and first plug-in slots are symmetrically provided at both ends of the cabin body bottom plate, a first inner support rod is fixedly provided in the first plug-in slot, a receiving groove is symmetrically provided at both ends of the prefabricated cabin body, a second plug-in slot is symmetrically provided at both ends of the cabin body top plate, a second inner support rod is fixedly provided in the second plug-in slot, the first plug-in slot, the receiving groove and the second plug-in slot are symmetrically provided. The connecting grooves are interconnected, and a connecting pipe body is fixedly arranged on the top plate of the cabin body, a matching ring groove is provided on the connecting pipe body, and a bearing block body is fixedly arranged on one side of the connecting pipe body, a positioning socket and a threaded connecting hole are provided on the bearing block body, a matching channel is provided on one side of the top plate of the cabin body, and a connecting strip plate is fixedly arranged on the side of the top plate of the cabin body with the matching channel, a matching groove is provided on the connecting strip plate, and connecting lock holes are symmetrically provided at both ends of the inner side of the matching groove, and a convenient cabin connection and fixing mechanism is provided on the prefabricated cabin body and the mounting base.

[0006] Preferably, end limit plates are symmetrically fixedly provided at both ends of the mounting base, a fixed channel is opened on the end limit plates, and a fitting limit plate is fixedly provided on one side of the mounting base. When the prefabricated cabin is installed on the mounting base, the cabin bottom plate is inserted between the end limit plates and the fitting limit plate for positioning, and a supporting vertical plate is fixedly provided on the fitting limit plate, and a connecting fixing frame is fixedly provided on the supporting vertical plate, and a matching column is fixedly provided on the connecting fixing frame, and a mounting carrier plate is symmetrically fixedly provided on the supporting vertical plate on the upper side of the connecting fixing frame, and a supporting slide rod is fixedly provided on the mounting carrier plate, and a supporting carrier ring is also provided on the upper end of the supporting vertical plate, a ventilation branch pipe is fixedly inserted in the support carrier ring, and a fitting sealing ring is provided on the ventilation branch pipe.

[0007] Preferably, the cabin convenient connection and fixing mechanism includes a threaded carrier rod, an interlocking carrier plate, a movable connecting pipe and a connecting block. The threaded carrier rod is threadedly connected in the threaded connecting hole, and a support plate is fixedly provided on the threaded carrier rod. A mounting support rod is fixedly provided on the support plate. A matching bearing is sleeved on the mounting support rod. A driving carrier plate is sleeved on the matching bearing. An assembly hole is provided on the driving carrier plate, and the assembly hole cooperates with the matching bearing. A limited position socket is symmetrically provided on the upper end of the driving carrier plate.

[0008] Preferably, a movable connecting plate is installed at the upper end of the driving carrier plate, and a limit plug rod is symmetrically fixed on the movable connecting plate, and an elastic connecting strip is fixed at the lower end of the movable connecting plate, and the lower end of the elastic connecting strip is fixed on the movable connecting plate, and an extension connecting plate is also fixed on the movable connecting plate, and a positioning plug block is fixed on the extension connecting plate. The two ends of the movable connecting plate are symmetrically hinged with movable connecting rods, and the other end of the movable connecting rod is hinged with an interlocking carrier plate.

[0009] Preferably, the interlocking carrier is inserted into the storage groove, and a fixed plug plate is fixedly provided at the lower end of the interlocking carrier, a first plug hole is provided on the interlocking carrier below the fixed plug plate, a first inner supporting rod is inserted into the first plug hole, and a second plug hole is provided at the upper end of the interlocking carrier, a second inner supporting rod is inserted into the second plug hole.

[0010] Preferably, a connecting seesaw is fixedly provided on the upper end of the interlocking carrier plate, a connecting channel is provided on the connecting seesaw, and a connecting carrier rod is fixedly provided on the lower side of the connecting seesaw, a connecting frame is fixedly provided on the connecting carrier rod, the connecting frame is hinged to the movable connecting rod, and the connecting channel is connected to a movable connecting tube.

[0011] Preferably, the movable connecting tube is inserted in the matching ring groove, and a protruding tube ring is fixedly provided on the upper end of the movable connecting tube, connecting plates are symmetrically fixedly provided at both ends of the protruding tube ring, and bearing strips are symmetrically fixed on the connecting plates. Connecting columns are fixedly provided between the bearing strips on the same connecting plate, and the connecting columns are inserted in the connecting channel. A supporting carrier plate is also fixed on the movable connecting tube, and the supporting carrier plate is inserted in the matching channel, and a supporting base plate is fixedly provided at the lower end of the supporting base plate, and a plug-in fixing block is fixed on the supporting base plate.

[0012] Preferably, the connecting block is installed on the supporting vertical plate, and a matching socket is provided on the connecting block, a matching column is inserted into the matching socket, a connecting spring is sleeved on the matching column, and a matching plug plate is fixedly provided at the lower end of the connecting block, and the matching plug plate is inserted in the connecting fixing frame.

[0013] Preferably, a driving link is symmetrically hinged on the connecting block, a movable locking plate is hinged on the upper end of the driving link, a matching sliding hole is provided on the movable locking plate, a supporting sliding rod is inserted into the matching sliding hole, and a bearing plate is fixedly provided on the movable locking plate, and an interlocking plug is fixedly provided on the bearing plate.

[0014] A method for installing a prefabricated power cabin comprises the following steps:

[0015] Step 1: Positioning the prefabricated cabin: Place the prefabricated cabin on the mounting base so that the cabin bottom plate contacts the end limit plate and the fitting limit plate to achieve positioning of the prefabricated cabin;

[0016] Step 2: Fixing the first layer of the prefabricated cabin: rotating the threaded carrier rod drives the interlocking carrier plate to move, thereby fixing the first layer of the prefabricated cabin;

[0017] Step 3: Connecting the prefabricated cabin and the ventilation branch pipe: The interlocking carrier plate drives the movable connecting pipe to move upward, so that it is sleeved on the ventilation branch pipe to connect the prefabricated cabin and the movable connecting pipe;

[0018] Step 4: Second-layer fixation of the prefabricated cabin: As the movable connecting pipe moves upward, the plug-in fixing block will also be driven to move upward, so that it is plugged into the connection fixing frame, thus achieving the second-layer fixation of the prefabricated cabin;

[0019] Step 5: The third layer of fixation of the prefabricated cabin: The plug-in fixing block pushes the connecting block upward so that the interlocking pin is inserted into the connecting lock hole to achieve the third layer of fixation of the prefabricated cabin.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. An end limit plate and a fitting limit plate are provided on the installation base, through which the prefabricated cabin is positioned, and then the multi-point synchronous fixation of the prefabricated cabin can be achieved by rotating the threaded carrier rod. The operation is simple, convenient and fast, which can fully ensure the firmness and stability of the installation of the prefabricated cabin. Moreover, the prefabricated cabin can be connected to the ventilation duct while being fixed, which is very practical.

[0022] 2. When the threaded carrier rod moves, it can drive the interlocking carrier plate to move under the action of the movable connecting rod, so that the fixed plug plate on the interlocking carrier plate will be inserted into the fixed channel, realizing the first layer of fixation between the prefabricated cabin and the installation base. As the interlocking carrier plate moves, it will drive the movable connecting pipe to move upward, and then the movable connecting pipe will be connected to the ventilation branch pipe, realizing the connection between the prefabricated cabin and the ventilation system, ensuring its ventilation effect.

[0023] 3. In addition, when the movable connecting pipe moves upward, the plug-in fixing block will be inserted into the connecting fixing frame to realize the second layer of fixed connection between the prefabricated cabin and the mounting base. As the plug-in fixing block moves, it will push the connecting block to move upward, and then under the action of the driving connecting rod, it will drive the movable lock plate to move, so that the interlocking pin on the movable lock plate is inserted into the connecting lock hole, realizing the third layer of fixed connection between the prefabricated cabin and the mounting base. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a first-person perspective diagram of the assembly of the installation base and the prefabricated cabin.

[0025] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0026] Figure 3 A second-perspective diagram of the assembly of the mounting base and the prefabricated cabin.

[0027] Figure 4 This is a first-person exploded view of the assembly of the installation base and the prefabricated cabin.

[0028] Figure 5 for Figure 4 Enlarged schematic diagram of point B in the middle.

[0029] Figure 6 This is a schematic diagram of the assembly of the prefabricated cabin.

[0030] Figure 7 This is a structural diagram of the prefabricated cabin.

[0031] Figure 8 Schematic diagram of the assembly of the threaded carrier rod.

[0032] Figure 9 Schematic diagram of the structure of the interlocking carrier.

[0033] Figure 10 It is a structural diagram of the movable connecting pipe.

[0034] 1. Mounting base; 11. End limit plate; 12. Fixing channel; 13. Fitting limit plate; 14. Supporting vertical plate; 15. Connecting fixing frame; 151. Matching column; 16. Installing carrier plate; 17. Supporting slide bar; 18. Supporting carrier ring; 19. Ventilation branch pipe; 191. Fitting sealing ring; 2. Prefabricated cabin; 21. Cabin bottom plate; 22. Cabin top plate; 23. First plug-in slot; 231. First inner supporting rod; 24. Receiving groove; 25. Second plug-in slot; 251. Second inner supporting rod; 26. Connecting pipe body; 261. Matching ring groove; 262. Carrying block; 263. Positioning socket; 264. Threaded connecting hole; 27. Matching channel; 28. Connecting strip plate; 281. Matching groove; 29. ​​Connecting lock hole; 3. Threaded carrier rod; 31. Support plate; 32. Installing support rod; 33. Matching 3. The bearing is matched; 34. The driving carrier plate; 35. The assembly hole; 36. The limit socket; 37. The movable connecting plate; 371. The limit plug rod; 372. The elastic connecting strip; 373. The extension connecting plate; 374. The positioning plug block; 38. The movable connecting rod; 4. The interlocking carrier plate; 41. The fixed plug plate; 42. The first socket; 43. The second socket; 44. The connecting rocker plate; 45. The connecting channel; 46. The connecting carrier rod; 47. The connecting frame; 5. The movable connecting pipe; 51. The protruding pipe ring; 52. The connecting connecting plate; 53. The load-bearing strip; 54. The plug-in connecting column; 55. The support carrier plate; 56. The support bottom plate; 57. The plug-in fixed block; 6. The connecting block; 61. The matching socket; 62. The connecting spring; 63. The matching plug plate; 64. The driving connecting rod; 65. The movable locking plate; 66. The matching sliding hole; 67. The load-bearing plate; 68. The interlocking plug column. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1 to 10 , the present invention provides a technical solution:

[0037] A prefabricated power cabin for underground substation construction includes a prefabricated cabin body 2, which is fixedly mounted on a mounting base 1. A cabin bottom plate 21 is fixedly provided at the lower end of the prefabricated cabin body 2, and a cabin top plate 22 is fixedly provided at the upper end. First plug-in slots 23 are symmetrically provided at both ends of the cabin bottom plate 21, and a first inner support rod 231 is fixedly provided in the first plug-in slot 23. Receiving grooves 24 are symmetrically provided at both ends of the prefabricated cabin body 2, and second plug-in slots 25 are symmetrically provided at both ends of the cabin top plate 22, and a second inner support rod 251 is fixedly provided in the second plug-in slot 25. The first plug-in slot 23, the receiving groove 24 and the second plug-in slot 25 intersect. A connecting tube body 26 is fixedly provided on the cabin top plate 22, a matching ring groove 261 is provided on the connecting tube body 26, and a supporting block body 262 is fixedly provided on one side of the connecting tube body 26, a positioning socket 263 and a threaded connecting hole 264 are provided on the supporting block body 262, a matching channel 27 is provided on one side of the cabin top plate 22, and a connecting strip plate 28 is fixedly provided on the side of the cabin top plate 22 with the matching channel 27, a matching groove 281 is provided on the connecting strip plate 28, and connecting lock holes 29 are symmetrically provided at both ends of the inner side of the matching groove 281, and a convenient cabin connection and fixing mechanism is provided on the prefabricated cabin body 2 and the mounting base 1.

[0038] End limit plates 11 are symmetrically fixed at both ends of the mounting base 1, and a fixed channel 12 is opened on the end limit plates 11, and a fitting limit plate 13 is fixed on one side of the mounting base 1. When the prefabricated cabin 2 is installed on the mounting base 1, the cabin bottom plate 21 is inserted between the end limit plates 11 and the fitting limit plates 13 for positioning, and a supporting vertical plate 14 is fixed on the fitting limit plate 13, and a connecting fixing frame 15 is fixed on the supporting vertical plate 14, and a matching column 15 is fixed on the connecting fixing frame 15. 1, and a mounting plate 16 is symmetrically fixedly provided on the supporting vertical plate 14 connected to the upper side of the fixing frame 15, and a supporting slide 17 is fixedly provided on the mounting plate 16. A supporting ring 18 is also provided on the upper end of the supporting vertical plate 14, and a ventilation branch pipe 19 is fixedly inserted in the supporting ring 18. A fitting sealing ring 191 is provided on the ventilation branch pipe 19. In addition, the ventilation branch pipe 19 is connected to the ventilation system of the underground substation. When the prefabricated cabin 2 is installed on the mounting base 1, the bearing plate 67 is inserted into the matching groove 281.

[0039] The convenient connection and fixing mechanism of the cabin includes a threaded carrier rod 3, an interlocking carrier plate 4, a movable connecting pipe 5 and a connecting block 6. The threaded carrier rod 3 is threadedly connected to the threaded connecting hole 264, and a support plate 31 is fixedly provided on the threaded carrier rod 3, and a mounting support rod 32 is fixedly provided on the support plate 31. A matching bearing 33 is sleeved on the mounting support rod 32, and a driving carrier plate 34 is sleeved on the matching bearing 33. An assembly hole 35 is provided on the driving carrier plate 34, and the assembly hole 35 is matched with the matching bearing 33, and a limited position socket 36 is symmetrically provided at the upper end of the driving carrier plate 34.

[0040] The upper end of the driving carrier plate 34 is installed with a movable connecting plate 37, and a limit plug 371 is symmetrically fixed on the movable connecting plate 37. The lower end of the movable connecting plate 37 is fixed with an elastic connecting strip 372, and the lower end of the elastic connecting strip 372 is fixed on the movable connecting plate 37, and an extension connecting plate 373 is also fixed on the movable connecting plate 37, and a positioning plug 374 is fixed on the extension connecting plate 373. The two ends of the movable connecting plate 37 are symmetrically hinged with movable connecting rods 38, and the other end of the movable connecting rod 38 is hinged with the interlocking carrier plate 4. When the positioning plug 374 is not inserted into the positioning socket 263, it contacts the upper end surface of the bearing block 262, and the elastic connecting strip 372 is in a stretched state at this time.

[0041] The interlocking carrier plate 4 is inserted into the storage groove 24, and a fixed plug plate 41 is fixedly provided at the lower end of the interlocking carrier plate 4. A first plug hole 42 is provided on the interlocking carrier plate 4 on the lower side of the fixed plug plate 41, and a first inner supporting rod 231 is inserted into the first plug hole 42. A second plug hole 43 is provided at the upper end of the interlocking carrier plate 4, and a second inner supporting rod 251 is inserted into the second plug hole 43. In addition, the fixed plug plate 41 is inserted into the fixing channel 12 when fixing the prefabricated cabin 2.

[0042] A connecting rocker plate 44 is also fixedly provided on the upper end of the interlocking carrier plate 4, and a connecting channel 45 is opened on the connecting rocker plate 44, and a connecting carrier rod 46 is fixedly provided on the lower side of the connecting rocker plate 44, and a connecting frame 47 is fixedly provided on the connecting carrier rod 46. The connecting frame 47 is hinged to the movable connecting rod 38, and the connecting channel 45 is connected to the movable connecting pipe 5. When the movable connecting pipe 5 is connected to the ventilation branch pipe 19, it is sleeved on the ventilation branch pipe 19, and the protruding pipe ring 51 is in contact with the fitting sealing ring 191 to ensure the sealing of the connection.

[0043] The movable connecting pipe 5 is inserted in the matching ring groove 261, and a protruding pipe ring 51 is fixedly provided on the upper end of the movable connecting pipe 5, and connecting plates 52 are symmetrically fixed at both ends of the protruding pipe ring 51. The connecting plates 52 are symmetrically fixed with load-bearing strips 53, and plug-in connecting columns 54 are fixed between the load-bearing strips 53 on the same connecting plate 52. The plug-in connecting columns 54 are inserted in the connecting channel 45, and the plug-in connecting columns 54 are in contact with the inner wall of the connecting channel 45. A supporting carrier plate 55 is also fixed on the movable connecting pipe 5, and the supporting carrier plate 55 is inserted in the matching channel 27, and a supporting base plate 56 is fixed at the lower end of the supporting base plate 55, and a plug-in fixing block 57 is fixed on the supporting base plate 56. The plug-in fixing block 57 plays a fixing role for the prefabricated cabin 2 and is inserted in the connecting fixing frame 15.

[0044] The connecting block 6 is installed on the supporting vertical plate 14, and a matching socket 61 is provided on the connecting block 6, a matching column 151 is inserted into the matching socket 61, and a connecting spring 62 is sleeved on the matching column 151. A matching plug plate 63 is fixedly provided at the lower end of the connecting block 6, and the matching plug plate 63 is inserted into the connecting fixed frame 15. In addition, the two ends of the connecting spring 62 are respectively fixed on the connecting fixed frame 15 and the connecting block 6.

[0045] A driving link 64 is symmetrically hinged on the connecting block 6, and a movable locking plate 65 is hinged on the upper end of the driving link 64. A matching sliding hole 66 is provided on the movable locking plate 65, and a supporting sliding rod 17 is inserted into the matching sliding hole 66. A bearing plate 67 is fixedly provided on the movable locking plate 65, and an interlocking plug 68 is fixedly provided on the bearing plate 67. The interlocking plug 68 plays a fixing role for the prefabricated cabin 2 and is inserted into the connecting lock hole 29.

[0046] A method for installing a prefabricated power cabin comprises the following steps:

[0047] Step 1: Positioning the prefabricated cabin 2: Place the prefabricated cabin 2 on the mounting base 1 so that the cabin bottom plate 21 contacts the end limit plate 11 and the contact limit plate 13 to achieve positioning of the prefabricated cabin 2;

[0048] Step 2: Fixing the first layer of the prefabricated cabin 2: Rotating the threaded carrier rod 3 drives the interlocking carrier plate 4 to move, thereby fixing the first layer of the prefabricated cabin 2;

[0049] Step 3: Connecting the prefabricated cabin 2 to the ventilation branch pipe 19: The interlocking carrier plate 4 drives the movable connecting pipe 5 to move upward, so that it is sleeved on the ventilation branch pipe 19 to connect the prefabricated cabin 2 to the movable connecting pipe 5;

[0050] Step 4: Second-layer fixation of the prefabricated cabin 2: As the movable connecting pipe 5 moves upward, the plug-in fixing block 57 will also be driven to move upward, so that it is plugged into the connecting fixing frame 15, thus achieving the second-layer fixation of the prefabricated cabin 2;

[0051] Step 5: The third layer of fixing of the prefabricated cabin body 2: The plug-in fixing block 57 pushes the connecting block 6 upward, so that the interlocking pin 68 is plugged into the connecting lock hole 29, thereby achieving the third layer of fixing of the prefabricated cabin body 2.

[0052] When installing the prefabricated cabin body 2, it is positioned and placed on the installation base 1 so that the cabin body bottom plate 21 contacts the end limit plate 11 and the fitting limit plate 13, and then the threaded carrier rod 3 is rotated to make it move under the action of the thread, thereby driving the driving carrier plate 34 to move in the direction of the connecting pipe body 26, so that under the action of the movable connecting rod 38, the interlocking carrier plate 4 is pushed to move, so that the fixed plug plate 41 on the interlocking carrier plate 4 is plugged into the fixed channel 12, realizing the first layer fixation of the prefabricated cabin body 2, and with the movement of the interlocking carrier plate 4, the movable connecting pipe 5 is driven to move upward under the action of the connecting channel 45, and with the upward movement of the movable connecting pipe 5, it is sleeved on the ventilation branch pipe 19, realizing the connection between the prefabricated cabin body 2 and the ventilation branch pipe 19, and the upward movement of the movable connecting pipe 5 also drives the plug-in fixing block 57 When the plug-in fixing block 57 is inserted into the connecting fixing frame 15, the second layer of fixation of the prefabricated cabin body 2 is realized. When the plug-in fixing block 57 is inserted into the connecting fixing frame 15, it will contact the matching plug plate 63. As the plug-in fixing block 57 moves upward, it will push the matching plug plate 63 to move upward, thereby driving the connecting block 6 to move upward. As the connecting block 6 moves upward, the driving connecting rod 64 will push the movable lock plate 65 to move, thereby driving the interlocking plug column 68 on the bearing plate 67 to be inserted into the connecting lock hole 29, thereby realizing the third layer of fixation of the prefabricated cabin body 2. In this way, under the action of multi-layer fixation, the firmness of the installation of the prefabricated cabin body 2 can be fully guaranteed, and the operation is simple, convenient and fast. While the prefabricated cabin body 2 is being installed, its connection with the ventilation branch pipe 19 is realized, which is highly practical.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated power cabin for underground substation construction, comprising a prefabricated cabin body (2), characterized in that: The prefabricated cabin body (2) is fixedly mounted on the mounting base (1), a cabin body bottom plate (21) is fixedly arranged at the lower end of the prefabricated cabin body (2), a cabin body top plate (22) is fixedly arranged at the upper end, and first plug-in slots (23) are symmetrically provided at both ends of the cabin body bottom plate (21), a first inner support rod (231) is fixedly provided in the first plug-in slot (23), a receiving groove (24) is symmetrically provided at both ends of the prefabricated cabin body (2), a second plug-in slot (25) is symmetrically provided at both ends of the cabin body top plate (22), a second inner support rod (251) is fixedly provided in the second plug-in slot (25), the first plug-in slot (23), the receiving groove (24) and the second plug-in slot ( 25) are interwoven, a connecting tube body (26) is fixedly provided on the cabin top plate (22), a matching annular groove (261) is provided on the connecting tube body (26), and a bearing block (262) is fixedly provided on one side of the connecting tube body (26), a positioning socket (263) and a threaded hole (264) are provided on the bearing block (262), a matching channel (27) is provided on one side of the cabin top plate (22), and a connecting strip (28) is fixedly provided on the side of the cabin top plate (22) where the matching channel (27) is provided, a matching groove (281) is provided on the connecting strip (28), and connecting grooves (281) are symmetrically provided at both ends of the interior. A locking hole (29) is provided on one side of the mounting base (1), a fitting limit plate (13) is fixedly provided on the fitting limit plate (13), a supporting vertical plate (14) is fixedly provided on the supporting vertical plate (14), a connecting fixing frame (15) is fixedly provided on the supporting vertical plate (14), a matching column (151) is fixedly provided on the connecting fixing frame (15), a cabin convenient connection fixing mechanism is provided on the prefabricated cabin body (2) and the mounting base (1), the cabin convenient connection fixing mechanism comprises a threaded carrier rod (3), an interlocking carrier plate (4), a movable connecting pipe (5) and a connecting block (6), the threaded carrier rod (3) is threadedly connected in the threaded connecting hole (264), and the threaded carrier rod (3) is fixed A support plate (31) is provided, a mounting support rod (32) is fixedly provided on the support plate (31), a matching bearing (33) is sleeved on the mounting support rod (32), a driving carrier plate (34) is sleeved on the matching bearing (33), a movable connecting plate (37) is installed on the upper end of the driving carrier plate (34), and movable connecting rods (38) are symmetrically hinged at both ends of the movable connecting plate (37), and the other end of the movable connecting rod (38) is hinged to an interlocking carrier plate (4), the interlocking carrier plate (4) is inserted into the receiving groove (24), and a second plug hole (43) is opened at the upper end of the interlocking carrier plate (4), and a second inner support rod (251) is inserted into the second plug hole (43).

2. The prefabricated power cabin for underground substation construction according to claim 1, characterized in that: End limit plates (11) are symmetrically fixedly provided at both ends of the mounting base (1), and a fixed channel (12) is provided on the end limit plates (11). When the prefabricated cabin (2) is mounted on the mounting base (1), the cabin bottom plate (21) is inserted between the end limit plates (11) and the fitting limit plates (13) for positioning. A mounting carrier plate (16) is symmetrically fixedly provided on the support vertical plate (14) on the upper side of the connecting fixed frame (15), and a support slide bar (17) is fixedly provided on the mounting carrier plate (16). A support carrier ring (18) is also provided on the upper end of the support vertical plate (14), and a ventilation branch pipe (19) is fixedly inserted in the support carrier ring (18). A fitting sealing ring (191) is provided on the ventilation branch pipe (19).

3. The prefabricated power cabin for underground substation construction according to claim 2, characterized in that: An assembly hole (35) is provided on the driving carrier plate (34), the assembly hole (35) is matched with the matching bearing (33), and a limited position insertion hole (36) is symmetrically provided on the upper end of the driving carrier plate (34).

4. The prefabricated power cabin for underground substation construction according to claim 3, characterized in that: A limited insertion rod (371) is symmetrically fixedly provided on the movable connecting plate (37), an elastic connecting strip (372) is fixedly provided at the lower end of the movable connecting plate (37), the lower end of the elastic connecting strip (372) is fixed to the movable connecting plate (37), and an extension connecting plate (373) is also fixedly provided on the movable connecting plate (37), and a positioning plug (374) is fixedly provided on the extension connecting plate (373).

5. The prefabricated power cabin for underground substation construction according to claim 4, characterized in that: A fixed plug plate (41) is fixedly provided at the lower end of the interlocking carrier plate (4), a first plug hole (42) is provided on the interlocking carrier plate (4) below the fixed plug plate (41), a first inner supporting rod (231) is inserted into the first plug hole (42), a connecting seesaw (44) is fixedly provided at the upper end of the interlocking carrier plate (4), a connecting channel (45) is provided on the connecting seesaw (44), and a connecting carrier rod (46) is fixedly provided on the lower side of the connecting seesaw (44), a connecting frame (47) is fixedly provided on the connecting carrier rod (46), the connecting frame (47) is hinged to the movable connecting rod (38), and the connecting channel (45) is connected to the movable connecting pipe (5).

6. The prefabricated power cabin for underground substation construction according to claim 5, characterized in that: The movable connecting tube (5) is inserted into the matching ring groove (261), and a protruding tube ring (51) is fixedly provided on the upper end of the movable connecting tube (5), and connecting plates (52) are symmetrically fixedly provided at both ends of the protruding tube ring (51), and bearing strips (53) are symmetrically fixedly provided on the connecting plates (52), and plug-in connecting columns (54) are fixedly provided between the bearing strips (53) on the same connecting plate (52), and the plug-in connecting columns (54) are inserted into the connecting channel (45). A supporting carrier plate (55) is also fixedly provided on the movable connecting tube (5), and the supporting carrier plate (55) is inserted into the matching channel (27), and a supporting base plate (56) is fixedly provided at the lower end of the supporting base plate (55), and a plug-in fixing block (57) is fixedly provided on the supporting base plate (56).

7. The prefabricated power cabin for underground substation construction according to claim 6, characterized in that: The connecting block (6) is mounted on the supporting vertical plate (14), and a matching socket (61) is provided on the connecting block (6), a matching column (151) is inserted into the matching socket (61), a connecting spring (62) is sleeved on the matching column (151), and a matching plug plate (63) is fixedly provided at the lower end of the connecting block (6), and the matching plug plate (63) is inserted into the connecting fixing frame (15).

8. The prefabricated power cabin for underground substation construction according to claim 7, characterized in that: A driving link (64) is symmetrically hinged on the connecting block (6), and a movable locking plate (65) is hinged on the upper end of the driving link (64). A matching sliding hole (66) is provided on the movable locking plate (65), and a supporting sliding rod (17) is inserted into the matching sliding hole (66). A bearing plate (67) is fixedly provided on the movable locking plate (65), and an interlocking plug column (68) is fixedly provided on the bearing plate (67).

9. A method for installing and constructing a prefabricated power cabin, characterized by: The installation construction method is applicable to the power prefabricated cabin described in claim 8, and comprises the following steps: Step 1: Positioning the prefabricated cabin (2): placing the prefabricated cabin (2) on the mounting base (1) so that the cabin bottom plate (21) contacts the end limit plate (11) and the contact limit plate (13), thereby achieving positioning of the prefabricated cabin (2); Step 2: Fixing the first layer of the prefabricated cabin (2): rotating the threaded carrier rod (3) to drive the interlocking carrier plate (4) to move, thereby fixing the first layer of the prefabricated cabin (2); Step 3: Connection between the prefabricated cabin (2) and the ventilation branch pipe (19): The interlocking carrier plate (4) drives the movable connecting pipe (5) to move upward so that it is sleeved on the ventilation branch pipe (19) to achieve the connection between the prefabricated cabin (2) and the movable connecting pipe (5); Step 4: Second-layer fixation of the prefabricated cabin (2): As the movable connecting pipe (5) moves upward, the plug-in fixing block (57) will also be driven to move upward, so that it is plugged into the connecting fixing frame (15), thereby achieving the second-layer fixation of the prefabricated cabin (2); Step 5: The third layer of fixing of the prefabricated cabin (2): the plug-in fixing block (57) pushes the connecting block (6) upward, so that the interlocking pin (68) is plugged into the connecting lock hole (29), thereby achieving the third layer of fixing of the prefabricated cabin (2).

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