Prefabricated cabin convenient for overhauling large electrical equipment

Abstract

The invention discloses a prefabricated cabin convenient for overhauling large electrical equipment, which comprises a prefabricated cabin body, the prefabricated cabin body at least comprises a first-layer cabin body and a second-layer cabin body, one side of the prefabricated cabin body is provided with an overhauling gate, and the lower end of the overhauling gate is rotatably connected with a base of the first-layer cabin body through a rotating shaft; the inner side of the maintenance gate is connected with a top frame of the second-layer cabin body through an electric hoisting guide chain, a hoisting point is arranged on the top of the maintenance gate, the maintenance gate is assembled with a frame of the first-layer cabin body and a frame of the second-layer cabin body through installation bolts, and cross-layer installation is achieved. Cross-layer installation can be achieved, disassembly and assembly are convenient, large electrical equipment can enter and exit conveniently, and meanwhile the influence on the waterproof performance of the cabin body and the environment in the cabin is small.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated cabins, and in particular to a prefabricated cabin that is convenient for the maintenance of large electrical equipment. Background Art

[0002] At present, the maintenance structure of the existing multi-layer prefabricated cabin is limited by the structural strength and waterproof requirements. Only a maintenance door can be set separately in each prefabricated cabin. The height of the maintenance door needs to be smaller than the floor height of the prefabricated cabin. When the height of the large equipment inside the prefabricated cabin is greater than the floor height of the prefabricated cabin, the equipment cannot enter and exit through the maintenance door, which cannot meet the maintenance requirements of the equipment; if the equipment is hoisted and repaired by disassembling the top cover, the waterproofing outside the cabin and the decoration inside the cabin will be damaged, and there are many problems such as large on-site construction volume, difficult operation, and hidden dangers of water leakage after the cabin body is restored. To this end, the present invention proposes a prefabricated cabin that is convenient for the maintenance of large electrical equipment. Summary of the invention

[0003] The embodiment of the present application provides a prefabricated cabin that is convenient for the maintenance of large electrical equipment, which can be installed across floors and is easy to assemble and disassemble. While facilitating the entry and exit of large electrical equipment, it has little impact on the waterproof performance of the cabin and the environment inside the cabin.

[0004] In view of this, the present application provides a prefabricated cabin for facilitating the maintenance of large electrical equipment, comprising: a prefabricated cabin body;

[0005] The prefabricated cabin body comprises at least a first-layer cabin body and a second-layer cabin body;

[0006] A maintenance door is provided on one side of the prefabricated cabin body;

[0007] The lower end of the inspection door is rotatably connected to the base of the first-layer cabin through a rotating shaft;

[0008] The inner side of the inspection door is connected to the top frame of the second-floor cabin through an electric lifting guide chain;

[0009] A hoisting point is provided on the top of the inspection door;

[0010] The inspection door is respectively assembled with the frame of the first-layer cabin body and the frame of the second-layer cabin body by installing bolts to achieve cross-layer installation.

[0011] Optionally, a guide rail for guiding the transfer vehicle is provided on the inner side of the inspection gate.

[0012] Optionally, the inspection door comprises a first prefabricated cabin frame and a first composite material wall panel arranged in sequence from inside to outside;

[0013] The first composite material wall panel and the first prefabricated cabin frame are assembled by bolts.

[0014] Optionally, the first composite material wall panel includes a first metal skeleton, a first core material filled between the first metal skeletons, and a first non-metallic skin covering the first metal skeleton.

[0015] Optionally, the wall surface of the prefabricated cabin body includes a decoration layer, a second prefabricated cabin frame and a second composite material wall panel arranged in sequence from the inside to the outside;

[0016] The second composite material wall panel and the second prefabricated cabin frame are assembled by bolts.

[0017] Optionally, the second composite material wall panel includes a second metal skeleton, a second core material filled between the second metal skeletons, and a second non-metallic skin covering the second metal skeleton.

[0018] Optionally, the inner surface of the inspection door is provided with eyebolts;

[0019] One end of the electric lifting guide chain is connected to the lifting eye bolt, and the other end is connected to the top frame of the second-layer cabin.

[0020] Optionally, the height of the inspection door is greater than the height of the first layer of the cabin.

[0021] It can be seen from the above technical solution that the embodiments of the present application have the following advantages: the inspection door of the prefabricated cabin can be installed across floors, and the height is not limited by the cabin frame. By removing the inspection door, an inspection passage that is not restricted by the cabin height can be created for large electrical equipment, thereby facilitating the entry and exit of equipment and making on-site construction operations more convenient. In addition, the inspection door is easy to disassemble and restore, and has little impact on the cabin's waterproof performance and the cabin environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the use of a prefabricated cabin for facilitating the maintenance of large electrical equipment in an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of the inspection door after it is rotated and laid down in the embodiment of the present application;

[0024] Figure 3 This is a front view of a prefabricated cabin in an embodiment of the present application, which is convenient for the maintenance of large electrical equipment when the maintenance door is rotated and laid down;

[0025] Wherein, the accompanying drawings are marked as follows:

[0026] 1-prefabricated cabin body, 11-first-floor cabin, 12-second-floor cabin, 2-inspection door, 21-guide rail, 3-electric lifting guide chain, 4-rotating shaft, 5-crane hook, 6-transfer loader. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The inventor found that there are two common ways to carry out equipment maintenance in the existing prefabricated cabin. The first way is to set up a double-leaf inspection door, and the electrical equipment enters and exits the prefabricated cabin through the double-leaf inspection door; the second way is to remove the top cover, top beam, and decorative ceiling of the prefabricated cabin, and the electrical equipment enters and exits the cabin by hoisting. However, there are certain problems. In the first way, the double-leaf inspection door can only be set on the first floor of the prefabricated cabin due to its structural characteristics and installation method, and it is impossible to achieve cross-layer installation of the first and second floor prefabricated cabins. At the same time, it is limited by the frame height of the first floor cabin, and the height of the inspection door is usually not more than 3.5 meters, which makes it impossible for large electrical equipment (such as GIS, etc.) to pass through, and thus cannot meet the maintenance needs of the equipment; and in the second way, due to the removal of the top cover for equipment hoisting and maintenance, the on-site construction volume is extremely large, the dismantling and restoration of the cabin is very difficult, the cycle is long, the cost is high, and the waterproofing outside the cabin and the decoration inside the cabin are destroyed. There is a hidden danger of water leakage after the cabin is restored, and the aesthetics of the cabin environment is difficult to guarantee.

[0031] This application provides an embodiment of a prefabricated cabin that is convenient for the maintenance of large electrical equipment. Figures 1 to 3 .

[0032] The prefabricated cabin for facilitating the maintenance of large electrical equipment in this embodiment comprises: a prefabricated cabin body 1, the prefabricated cabin body 1 comprises at least a first-layer cabin body 11 and a second-layer cabin body 12, a maintenance door 2 is arranged on one side of the prefabricated cabin body 1, the lower end of the maintenance door 2 is rotatably connected to the base of the first-layer cabin body 11 through a rotating shaft 4, the inner side of the maintenance door 2 is connected to the top frame of the second-layer cabin body 12 through an electric lifting guide chain 3, a lifting point is arranged on the top of the maintenance door 2, and the maintenance door 2 is respectively assembled with the frame of the first-layer cabin body 11 and the frame of the second-layer cabin body 12 through mounting bolts to realize cross-layer installation.

[0033] It should be noted that the inspection door 2 of the prefabricated cabin can be installed across floors, and its height is not limited by the cabin frame. By removing the inspection door 2, an inspection passage that is not limited by the cabin height can be created for large electrical equipment, thereby facilitating the entry and exit of equipment and making on-site construction operations more convenient. In addition, the inspection door 2 is easy to disassemble and restore, and has little impact on the waterproof performance of the cabin and the cabin environment (disassembling the inspection door 2 only requires partial disassembly and restoration of the cabin, while disassembling the top cover requires the overall disassembly and restoration of several sections of segmented top covers, several sections of top spliced ​​beams, and the decorative ceiling).

[0034] The above is an embodiment of the present application, which provides a prefabricated cabin for facilitating the maintenance of large electrical equipment. The following is an embodiment of the present application, which provides a prefabricated cabin for facilitating the maintenance of large electrical equipment. For details, please refer to Figures 1 to 3 .

[0035] The prefabricated cabin for facilitating the maintenance of large electrical equipment in this embodiment comprises: a prefabricated cabin body 1, the prefabricated cabin body 1 comprises at least a first-layer cabin body 11 and a second-layer cabin body 12, a maintenance door 2 is arranged on one side of the prefabricated cabin body 1, a high-load-bearing shaft 4 is installed on the base of the first-layer cabin body 11, the lower end of the maintenance door 2 is rotatably connected to the base of the first-layer cabin body 11 through the shaft 4, the inner side of the maintenance door 2 is connected to the top frame of the second-layer cabin body 12 through an electric lifting guide chain 3, a lifting point is arranged on the top of the maintenance door 2, and the maintenance door 2 is assembled with the frame of the first-layer cabin body 11 and the frame of the second-layer cabin body 12 respectively through mounting bolts to realize cross-layer installation.

[0036] It is understandable that the existing double-leaf inspection door is installed using structures such as door frames, door shafts, hinges, etc. embedded in the frame of the first-layer cabin 11, and cannot be installed across floors. The inspection door 2 of this prefabricated cabin can be assembled with the frame of the first-layer cabin 11 and the frame of the second-layer cabin 12 by installing bolts, and its installation does not rely on structures such as door frames, door shafts, hinges, etc. Therefore, the inspection door 2 can be installed across floors and is no longer limited to the height of the frame of the first-layer cabin 11. The height of the inspection door 2 can be flexibly adjusted according to the external dimensions of the electrical equipment, which can meet the inspection needs of large electrical equipment. In addition, disassembling the inspection door 2 only requires partial disassembly and restoration of the cabin, which has little impact on the waterproof performance of the cabin and the cabin environment and is easy to disassemble and restore.

[0037] A guide rail 21 for guiding the transfer vehicle 6 is provided on the inner side of the maintenance gate 2. When the maintenance gate 2 is rotated and laid down to the ground, the guide rail 21 on its inner side can cooperate with the matching transfer vehicle 6 to enable electrical equipment to enter and exit the prefabricated cabin, so as to facilitate equipment maintenance operations.

[0038] The inspection door 2 comprises a first prefabricated cabin frame and a first composite material wall panel which are sequentially arranged from the inside to the outside, and the first composite material wall panel is assembled with the first prefabricated cabin frame by bolts.

[0039] The first composite wall panel includes a first metal frame, a first core material filled between the first metal frames, and a first non-metallic skin covered outside the first metal frame. Specifically, the inspection door 2 is assembled with the frame of the first layer cabin 11 and the frame of the second layer cabin 12 through the first metal frame embedded in the first composite wall panel by installing bolts.

[0040] The wall surface of the prefabricated cabin body 1 includes a decoration layer, a second prefabricated cabin frame and a second composite material wall panel which are arranged in sequence from the inside to the outside. The second composite material wall panel and the second prefabricated cabin frame are assembled with bolts.

[0041] The second composite material wall panel includes a second metal skeleton, a second core material filled between the second metal skeletons, and a second non-metallic skin covered outside the second metal skeleton.

[0042] The inner surface of the inspection door 2 is installed with eyebolts. Specifically, the first metal frame has reserved tapping holes, and the eyebolts are threadedly connected to the first metal frame; one end of the electric lifting guide chain 3 is connected to the eyebolt, and the other end is connected to the top frame of the second-layer cabin 12.

[0043] The height of the inspection door 2 is greater than the height of one layer of the cabin 11 .

[0044] In practice, the specific process of disassembling the inspection door 2 is as follows: 1. Install eyebolts on the inner surface of the inspection door 2; 2. Connect one end of the retractable electric lifting guide chain 3 (also known as a chain electric hoist) to the top frame of the second-layer cabin 12, and the other end of the hook to the above eyebolt, and adjust the electric lifting guide chain 3 to a suitable length; 3. Remove the mounting bolts between the inspection door 2 and the first-layer cabin 11 frame and the second-layer cabin 12 frame; 4. Slowly adjust the length of the electric lifting guide chain 3, and rotate the inspection door 2 outward by 10~15° with the rotating shaft 4 on the base of the first-layer cabin 11 as the center; 5. Connect the crane hook 5 to the reserved lifting point on the top of the inspection door 2; 6. Remove the connection between the inspection door 2 and the electric lifting guide chain 3; 7. Use the crane to rotate the inspection door 2 and lay it down on the ground. The restoration of the inspection door 2 only needs to be reversed according to the above process.

[0045] It can be understood that the above-mentioned disassembly and restoration of the inspection door 2 has the following two advantages compared with the disassembly and restoration of the prefabricated cabin roof:

[0046] 1. The amount of hoisting work at the construction site is small: dismantling the top cover requires dismantling and hoisting several sections of the segmented top cover and several sections of the top spliced ​​beams. Obviously, the amount of hoisting work for dismantling the inspection door 2 is much less than that for dismantling the top cover;

[0047] 2. Less impact on the cabin's waterproof performance and cabin environment: Restoring the top cover requires re-waterproofing of the joints of several sections of the top cover, and the joints are located on the top of the cabin, directly bearing the impact of rain, which has a great impact on the waterproof performance of the prefabricated cabin. After the top cover is restored, the entire three-layer cabin needs to be re-decorated and the ceiling is redone, which also has a great impact on the cabin environment. The inspection door 2 only needs to restore the waterproofing of the joints with the surrounding wall panels. The length and number of the wall panel joints are far less than the joints of the segmented top cover, and the joints are located on the side of the cabin, which has little impact on the cabin's waterproof performance. Similarly, restoring the inspection door 2 only requires redoing part of the cabin decoration, which also has little impact on the cabin environment.

[0048] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A prefabricated cabin for facilitating the maintenance of large electrical equipment, characterized in that: include: Prefabricated cabin body; The prefabricated cabin body comprises at least a first-layer cabin body and a second-layer cabin body; A maintenance door is provided on one side of the prefabricated cabin body; The lower end of the inspection door is rotatably connected to the base of the first-layer cabin through a rotating shaft; The inner side of the inspection door is connected to the top frame of the second-floor cabin through an electric lifting guide chain; A hoisting point is provided on the top of the inspection door; The inspection door is respectively assembled with the frame of the first-layer cabin body and the frame of the second-layer cabin body by installing bolts to achieve cross-layer installation.

2. The prefabricated cabin for facilitating maintenance of large electrical equipment according to claim 1 is characterized in that: A guide rail for guiding the transfer tool vehicle is arranged on the inner side of the inspection door.

3. The prefabricated cabin for facilitating maintenance of large electrical equipment according to claim 1 is characterized in that: The inspection door comprises a first prefabricated cabin frame and a first composite material wall panel arranged in sequence from the inside to the outside; The first composite material wall panel and the first prefabricated cabin frame are assembled by bolts.

4. The prefabricated cabin for facilitating maintenance of large electrical equipment according to claim 2 is characterized in that: The first composite material wall panel includes a first metal skeleton, a first core material filled between the first metal skeletons, and a first non-metallic skin covering the first metal skeleton.

5. The prefabricated cabin for facilitating maintenance of large electrical equipment according to claim 1 is characterized in that: The wall surface of the prefabricated cabin body includes a decoration layer, a second prefabricated cabin frame and a second composite material wall panel arranged in sequence from the inside to the outside; The second composite material wall panel and the second prefabricated cabin frame are assembled by bolts.

6. The prefabricated cabin for facilitating maintenance of large electrical equipment according to claim 5 is characterized in that: The second composite material wall panel includes a second metal skeleton, a second core material filled between the second metal skeletons, and a second non-metallic skin covering the second metal skeleton.

7. The prefabricated cabin for facilitating maintenance of large electrical equipment according to claim 1 is characterized in that: The inner surface of the inspection door is provided with eyebolts; One end of the electric lifting guide chain is connected to the lifting eye bolt, and the other end is connected to the top frame of the second-layer cabin.

8. The prefabricated cabin for facilitating maintenance of large electrical equipment according to claim 1 is characterized in that: The height of the inspection door is greater than the height of the first layer of cabin.

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