Prefabricated power calandria

Abstract

The utility model relates to the technical field of power transmission system infrastructure construction, and discloses a prefabricated power tube bank which comprises two power tube bank shells, the right side of the power tube bank shell on the left side is fixedly connected with two first short plates, the top of each first short plate is provided with a first sliding groove, the bottom of each first short plate is rotationally connected with a third short plate, and the bottom of each third short plate is provided with a second sliding groove. A groove is formed in the right side of the bottom of the third short plate, two second short plates are fixedly connected to the left side of the power bank pipe shell on the right side, second sliding grooves are formed in the tops of the second short plates, and fixing columns are fixedly connected to the front sides of the bottoms of the second short plates. According to the utility model, the extrusion block is pressed, so that the electric tube bank shells are separated, and then the grooves are clamped with the fixed columns through the short plate III, so that the distance is fixed, and therefore, in a groove excavation stage, constructors can use unified excavation equipment and parameters to carry out construction according to the outer diameter and equidistance requirements of the fixed tube bank.

Description

Technical Field

[0001] This utility model relates to the field of power transmission system infrastructure construction technology, and in particular to a prefabricated power duct. Background Technology

[0002] Precast power ducts are pipe systems prefabricated in factories and specific sites for laying power cables. They are an indispensable infrastructure in power engineering projects such as urban power grid construction and factory power wiring. Compared with traditional on-site casting or direct burial of cables, precast power ducts have the characteristics of standardized production, controllable quality, and high construction efficiency. When urban roads are renovated and expanded, the original cables need to be re-laid and relocated. Precast power ducts can be used as an efficient cable laying method to complete the cable replacement without affecting the normal use of the road, thereby reducing interference with road traffic and lowering construction costs.

[0003] A search revealed Chinese Patent Publication No. CN221232806U, which discloses a novel prefabricated power duct, relating to the field of power duct technology. This utility model includes an installation mechanism comprising a duct body and a sleeve assembly disposed outside the duct body. The sleeve assembly includes a collar and a connecting rod. The collar is sleeved outside the duct body, and the two ends of the connecting rod are fixedly connected to the outer walls of the two collars respectively. A control mechanism includes an L-shaped rod disposed on the outer wall of the collar. The side wall of the L-shaped rod has an internally threaded through hole, and a screw is movably connected inside the internally threaded through hole. An anti-touch end is fixedly connected to one end of the screw near the outer wall of the duct body. This utility model discloses a novel prefabricated power duct. By rotating a screw on a support handle, the distance between the support handle and the outer wall of the duct body can be adjusted. After the distance is adjusted, workers lay structural steel bars and then assemble the template, ensuring that the support handle contacts and fits snugly against the inner wall of the template, thus forming a stable distance and facilitating installation. However, when adjusting the distance, the distance between each power duct is adjusted by rotating different screws, resulting in different distances between the ducts. When the distances of the power ducts are different, the trench excavation stage requires separate design and construction for the duct sections with different distances, necessitating continuous adjustments to the installation method to adapt to different distances, making standardized operation impossible. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a prefabricated power duct, which aims to improve the problem that in the existing technology, when the spacing of power ducts is different, it is necessary to design and construct the duct sections with different spacings separately during the trench excavation stage, and the installation method needs to be constantly adjusted to adapt to different spacings, making it impossible to carry out standardized operations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated power duct, comprising two power duct shells, with two short plates 1 fixedly connected to the right side of the left power duct shell, the top of the short plate 1 having a sliding groove 1, and the bottom of the short plate 1 being rotatably connected to a short plate 3, the bottom right side of the short plate 3 having a groove. Two short plates 2 are fixedly connected to the left side of the right power duct shell, the top of the short plate 2 having a sliding groove 2, and the bottom front side of the short plate 2 being fixedly connected to a fixing column, the outer wall of the fixing column engaging with the bottom of the groove. A pressing block is slidably connected to the left side of the short plate 2, the left side of the pressing block being slidably connected to the right side of the short plate 1. A protective mechanism is provided inside the power duct shell, the protective mechanism being used to protect the power duct.

[0006] Through the above technical solution: the top of the first short plate is provided with a sliding groove to facilitate the sliding connection of other components. The bottom of the first short plate is fixed to the third short plate by a rotating connection. The bottom right side of the third short plate is provided with a groove to facilitate its use with other components. The outer wall of the fixing column can engage with the groove at the bottom of the third short plate to ensure a stable connection between the components. The main function of the protection mechanism is to protect the power pipe and ensure that it has good performance and can meet the needs of various power engineering projects.

[0007] As a further description of the above technical solution:

[0008] The protective mechanism includes an insulation layer, the outer wall of which is fixedly connected to the inner wall of the power pipe shell, a protective inner shell fixedly connected to the inner wall of the insulation layer, a plurality of support frames fixedly connected to the front side of the inner wall of the protective inner shell, a T-shaped frame fixedly connected to the rear side of the support frames, two ventilation openings at the top of the insulation layer, and external reinforcing ribs fixedly connected to the front and rear outer walls of the power pipe shell.

[0009] Through the above technical solution: the outer wall of the insulation layer is fixedly connected to the inner wall of the power duct shell to ensure that there is no relative movement between the two. The inner shell is used to further protect the internal power duct and prevent damage from the external environment. In order to further enhance the protective effect, multiple support frames are fixedly connected to the front side of the inner wall of the inner shell. The function of these support frames is to provide additional support and ensure that the power duct can remain stable when subjected to external impact and will not be displaced or deformed. T-shaped frames are fixedly connected to the rear side of the support frames. The design of the T-shaped frames is to further distribute and bear the forces from all directions, thereby providing more stable support.

[0010] As a further description of the above technical solution:

[0011] A handle is fixedly connected to the top of the extrusion block, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0012] The above technical solution makes operation easier and increases user comfort.

[0013] As a further description of the above technical solution:

[0014] A filter screen is fixedly connected to the inner wall of the vent, and a nameplate is fixedly connected to the top center of the protective inner shell.

[0015] Through the above technical solutions, the nameplate not only facilitates product identification and understanding, but also provides an important basis for after-sales service and quality traceability.

[0016] As a further description of the above technical solution:

[0017] Reflective strips are fixedly connected to the opposite side of the power duct shell, and fireproof bags are fixedly connected to the adjacent side of the power duct shell.

[0018] The purpose of the above technical solution is to provide clear markings in low-light environments, ensuring that the location of the power conduit casing can be easily identified, thereby avoiding accidents during construction or maintenance.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the protective inner shell is provided with a connecting groove, and a shock-absorbing block is fixedly connected to the front side of the inner side of the protective inner shell.

[0021] Through the above technical solution: multiple connecting grooves are opened on the outer wall of the inner shell to facilitate connection and fixation with other components. The main function of the shock absorber is to absorb and disperse external impact forces, thereby protecting sensitive internal components from damage.

[0022] As a further description of the above technical solution:

[0023] A protective plate is fixedly connected to the top of the T-shaped frame, and a sealing ring is fixedly connected to the front end of the power pipe shell.

[0024] The above technical solution involves a protective plate to protect the cable from damage and a sealing ring to ensure good sealing performance at the front end of the power conduit housing.

[0025] As a further description of the above technical solution:

[0026] Connecting sleeves are fixedly connected to the front and rear sides of the outer wall of the power pipe shell. The right side of the left connecting sleeve is fixedly connected to the left side of the first short plate, and the left side of the right connecting sleeve is fixedly connected to the right side of the second short plate.

[0027] Through the above technical solution, the right side of the left connecting sleeve is fixedly connected to the left side of the short plate. In this way, a stable connection is formed between the two, ensuring their tight fit, enhancing the overall stability of the power pipe shell, and facilitating installation and maintenance in practical applications.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, after the power duct shell is assembled, the pressing and squeezing blocks are used to push the corresponding power duct shells apart by a certain distance. Then, by rotating the short plate three, the groove on the right side is engaged with the fixed column to fix the distance. This connection of equidistant power ducts allows the construction process to adopt a standardized operating procedure. During the trench excavation stage, the construction personnel can accurately calculate the width of the trench according to the fixed outer diameter of the duct and the equidistant requirements, so as to use uniform excavation equipment and parameters for construction.

[0030] 2. In this utility model, the heat insulation layer can limit the rate of heat dissipation and prevent the temperature around the cable from becoming too high. Then, the inner protective shell can act as a buffer layer to prevent impact forces from directly acting on the cables and other key structures inside the pipe. The internal support frame and T-shaped frame can effectively fix the cable and keep it in the predetermined position. The ventilation opening is used to regulate the humidity inside the pipe. These structures work together to improve the quality and service life of the product and ensure the safe and reliable operation of the power grid. Attached Figure Description

[0031] Figure 1 This is a perspective view of the front side of the casing of a prefabricated power duct according to the present invention.

[0032] Figure 2 This is a split view of the extrusion block of a prefabricated power pipe according to the present invention;

[0033] Figure 3 This is a schematic diagram of a support frame for a prefabricated power duct according to the present invention.

[0034] Figure 4 This is a display diagram of a nameplate for a prefabricated power duct proposed in this utility model;

[0035] Figure 5 This is a split view of the insulation layer of a prefabricated power pipe proposed in this utility model.

[0036] Legend:

[0037] 1. Power conduit shell; 2. Protection mechanism; 201. Insulation layer; 202. Protective inner shell; 203. Support frame; 204. T-shaped frame; 205. Ventilation opening; 206. External reinforcing rib; 3. Short plate one; 4. Slide groove one; 5. Short plate three; 6. Groove; 7. Short plate two; 8. Slide groove two; 9. Fixing column; 10. Extrusion block; 11. Handle; 12. Anti-slip sleeve; 13. Filter screen; 14. Nameplate; 15. Reflective strip; 16. Fireproof bag; 17. Connecting groove; 18. Shock-absorbing block; 19. Protective plate; 20. Sealing ring; 21. Connecting sleeve. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a prefabricated power pipe, comprising two power pipe shells 1. Two short plates 3 are fixedly connected to the right side of the left power pipe shell 1. A groove 4 is provided on the top of the short plate 3. A short plate 5 is rotatably connected to the bottom of the short plate 3. A groove 6 is provided on the right side of the bottom of the short plate 5. Two short plates 7 are fixedly connected to the left side of the right power pipe shell 1. A groove 8 is provided on the top of the short plate 7. A fixing post 9 is fixedly connected to the front side of the bottom of the short plate 7. The outer wall of the fixing post 9 engages with the bottom of the groove 6. An extrusion block 10 is slidably connected to the left side of the short plate 7. The left side of the extrusion block 10 is slidably connected to the right side of the short plate 3. A protection mechanism 2 is provided inside the power pipe shell 1. The protection mechanism 2 is used to protect the power pipe.

[0040] Specifically, two short plates 3 are fixedly connected to the right side of the power pipe housing 1 on the left. The top of these short plates 3 is designed with a sliding groove 4 to facilitate the sliding connection of other components. A groove 6 is opened on the bottom right side of the short plate 5 for use with other components. Two short plates 7 are also fixedly connected to the left side of the power pipe housing 1 on the right. The top of these short plates 7 is also provided with a sliding groove 8 to facilitate the sliding connection between components. A fixing post 9 is also fixedly connected to the bottom front side of the short plate 7. The outer wall of the fixing post 9 can engage with the bottom of the groove 6 to ensure the stability of the entire device. In order to further enhance the functionality of the device.

[0041] Please see the appendix Figure 3 - Appendix Figure 5The protective mechanism 2 includes an insulation layer 201. The outer wall of the insulation layer 201 is fixedly connected to the inner wall of the power pipe shell 1. A protective inner shell 202 is fixedly connected to the inner wall of the insulation layer 201. Multiple support frames 203 are fixedly connected to the front side of the inner wall of the protective inner shell 202. A T-shaped frame 204 is fixedly connected to the rear side of the support frame 203. Two ventilation openings 205 are opened at the top of the insulation layer 201. External reinforcing ribs 206 are fixedly connected to the front and rear outer walls of the power pipe shell 1.

[0042] Specifically, the outer wall of the insulation layer 201 is tightly connected to the inner wall of the power duct shell 1. A protective inner shell 202 is fixedly connected to the inner wall of the insulation layer 201. This inner shell further enhances the structural stability of the protection mechanism 2. Multiple support frames 203 are fixedly connected to the front part of the inner wall of the protective inner shell 202. These support frames 203 provide additional support and stability to ensure that the power duct does not shift or deform during operation. A T-shaped frame 204 is fixedly connected to the rear part of the support frame 203. This structural design further enhances… In addition to ensuring overall stability and load-bearing capacity, the top of the insulation layer 201 has two vents 205. The main function of these two vents 205 is to ensure air circulation inside the protection mechanism 2, thereby effectively controlling the internal temperature and preventing overheating. To further enhance the structural strength of the protection mechanism 2, external reinforcing ribs 206 are fixedly connected to the front and rear outer walls of the power pipe shell 1. These reinforcing ribs not only improve the overall mechanical strength, but also effectively resist external impacts and pressures, ensuring that the power pipe can maintain stable operation in various complex environments.

[0043] Please see the appendix Figure 1 - Appendix Figure 3 Reflective strips 15 are fixedly connected to the opposite side of the power pipe shell 1. Fireproof bags 16 are fixedly connected to the adjacent side of the power pipe shell 1. Protective plates 19 are fixedly connected to the top of the T-shaped frame 204. Sealing rings 20 are fixedly connected to the front end of the power pipe shell 1. Handles 11 are fixedly connected to the top of the extrusion block 10. Anti-slip sleeves 12 are fixedly connected to the outer wall of the handle 11.

[0044] Specifically, reflective strips 15 are fixedly connected to the opposite sides of the power pipe housing 1 to provide better visibility in low-light environments. Fireproof bags 16 are fixedly connected to the adjacent sides of the power pipe housing 1 to ensure effective protection against high temperatures and flames in the event of a fire or other emergency. A protective plate 19 is also fixedly connected to the top of the T-shaped frame 204 to prevent the sharp edges on the top from injuring the operator. A sealing ring 20 is fixedly connected to ensure that the front end of the power pipe housing 1 can be effectively sealed to prevent dust and moisture from entering. A handle 11 is fixedly connected to the top of the extrusion block 10 for easy operation.

[0045] Please see the appendix Figure 2 - Appendix Figure 4 The outer wall of the protective inner shell 202 is provided with a connecting groove 17. A shock-absorbing block 18 is fixedly connected to the front side of the inner wall of the protective inner shell 202. A connecting sleeve 21 is fixedly connected to both the front and rear sides of the outer wall of the power pipe shell 1. The right side of the left connecting sleeve 21 is fixedly connected to the left side of the short plate 1 3. The left side of the right connecting sleeve 21 is fixedly connected to the right side of the short plate 2 7. A filter screen 13 is fixedly connected to the inner wall of the ventilation port 205. A nameplate 14 is fixedly connected to the top center of the protective inner shell 202.

[0046] Specifically, a connecting groove 17 is opened on the outer wall of the protective inner shell 202 for connection and fixation with other components. A shock-absorbing block 18 is fixedly installed on the front side inside the protective inner shell 202 to ensure that the equipment can effectively absorb vibration during operation and protect sensitive internal components. The connecting sleeve 21 not only serves a fixing function but also facilitates connection with other equipment. To ensure ventilation, a filter screen 13 is fixedly connected to the inner wall of the vent 205, which can effectively filter impurities in the air and keep the internal environment clean.

[0047] Working principle: After assembling the power duct shell 1, the pressing and squeezing block 10 is pressed. Since the bottom of the squeezing block 10 is triangular, when the short plate 1 3 and short plate 2 7 are squeezed, they will slide down along the sliding groove 1 4 on the top of short plate 1 3 and the sliding groove 2 8 on the top of short plate 2 7. At the same time, the short plates 1 3 and short plate 2 7 on both sides of the squeezing block 10 move in opposite directions, thereby pushing the corresponding power duct shell 1 to separate one end. Then, by rotating the short plate 3 5, the groove 6 on the right side is engaged with the fixed column 9 to complete the fixing of the distance. The equidistant power ducts connected in this way allow the construction process to adopt a standardized operating procedure. During the trench excavation stage, the construction personnel can accurately calculate the width of the trench according to the fixed outer diameter of the duct and the equidistant requirements, so as to use uniform excavation equipment and parameters for construction.

[0048] The insulation layer 201 can limit the rate of heat dissipation to a certain extent, preventing the temperature around the cable from becoming too high. The inner protective shell 202 acts as a buffer layer, absorbing and dispersing external impact forces to prevent them from directly affecting the cables and other critical structures inside the conduit. The internal support frame 203 effectively fixes the cables in their predetermined positions. The T-shaped frame 204 allows for the categorized fixing of cables. The ventilation openings 205 regulate the humidity inside the conduit. When the humidity inside the conduit is high, ventilation can expel moisture and prevent the cables from getting damp. The external reinforcing ribs 206 increase the stability of the power conduit. These structures work together to improve the quality and service life of the product, ensuring the safe and reliable operation of the power grid.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated power duct, comprising two power duct shells (1), characterized in that: Two short plates (3) are fixedly connected to the right side of the power pipe shell (1) on the left side. A groove (4) is provided on the top of the short plate (3). A short plate (5) is rotatably connected to the bottom of the short plate (3). A groove (6) is provided on the right side of the bottom of the short plate (5). Two short plates (7) are fixedly connected to the left side of the power pipe shell (1) on the right side. A groove (8) is provided on the top of the short plate (7). A fixing column (9) is fixedly connected to the front side of the bottom of the short plate (7). The outer wall of the fixing column (9) engages with the bottom of the groove (6). A pressing block (10) is slidably connected to the left side of the short plate (7). The left side of the pressing block (10) is slidably connected to the right side of the short plate (3). A protection mechanism (2) is provided on the inner side of the power pipe shell (1). The protection mechanism (2) is used to protect the power pipe.

2. The prefabricated power duct according to claim 1, characterized in that: The protective mechanism (2) includes an insulation layer (201), the outer wall of the insulation layer (201) is fixedly connected to the inner wall of the power pipe shell (1), the inner wall of the insulation layer (201) is fixedly connected to a protective inner shell (202), the front side of the inner wall of the protective inner shell (202) is fixedly connected to multiple support frames (203), the rear side of the support frame (203) is fixedly connected to a T-shaped frame (204), the top of the insulation layer (201) has two ventilation openings (205), and the front and rear outer walls of the power pipe shell (1) are fixedly connected to external reinforcing ribs (206).

3. The prefabricated power duct according to claim 1, characterized in that: A handle (11) is fixedly connected to the top of the extrusion block (10), and an anti-slip sleeve (12) is fixedly connected to the outer wall of the handle (11).

4. A prefabricated power duct according to claim 2, characterized in that: A filter screen (13) is fixedly connected to the inner wall of the vent (205), and a nameplate (14) is fixedly connected to the top center of the protective inner shell (202).

5. A prefabricated power duct according to claim 2, characterized in that: Reflective strips (15) are fixedly connected to the opposite side of the power pipe shell (1), and fireproof bags (16) are fixedly connected to the adjacent side of the power pipe shell (1).

6. A prefabricated power duct according to claim 2, characterized in that: The outer wall of the protective inner shell (202) is provided with a connecting groove (17), and a shock-absorbing block (18) is fixedly connected to the front side of the inner side of the protective inner shell (202).

7. A prefabricated power duct according to claim 2, characterized in that: The top of the T-shaped frame (204) is fixedly connected with a protective plate (19), and the front end of the power pipe shell (1) is fixedly connected with a sealing ring (20).

8. A prefabricated power duct according to claim 2, characterized in that: The outer wall of the power pipe shell (1) is fixedly connected to the front and rear sides of the connecting sleeve (21). The right side of the connecting sleeve (21) on the left side is fixedly connected to the left side of the first short plate (3), and the left side of the connecting sleeve (21) on the right side is fixedly connected to the right side of the second short plate (7).

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