Modularized splicing type MPP cable protection pipe

Abstract

The utility model discloses a modularization splicing type MPP cable protection pipe, belongs to the MPP cable protection pipe technology field, the modularization splicing type MPP cable protection pipe comprises a main protection pipe and an auxiliary protection pipe installed on the side of the main protection pipe in a combined manner, the main protection pipe and the auxiliary protection pipe are sleeved with two reinforcing pipes, and the reinforcing pipes are connected with the main protection pipe and the auxiliary protection pipe. The assembling direction of the two reinforcing pipes is perpendicular to the assembling direction of the main protection pipe and the auxiliary protection pipe. A threaded hole is formed in the reinforcing pipe, and a bolt piece is installed in the threaded hole in a threaded mode. A pressurizing mechanism for reinforcing the combination of the main protection pipe and the auxiliary protection pipe is arranged in the reinforcing pipe; the modularly-spliced cable protection pipe can be conveniently disassembled and assembled outside the cable, so that the cable is convenient to maintain, and the assembly mode is very flexible.

Description

A modular splicing MPP cable protection pipe Technical Field

[0001] This utility model relates to the field of MPP cable protection pipe technology, specifically a modular splicing MPP cable protection pipe. Background Technology

[0002] MPP cable protection pipe is a power pipeline protection material made primarily of modified polypropylene. MPP material has excellent high-temperature resistance and chemical stability, making it suitable for various harsh environments and providing good protection for cables. The long-term operating temperature range of MPP cable protection pipe is -5℃ to 70℃, and its service life can reach decades.

[0003] For example, patent CN221150877U discloses a splicing cable protection pipe, including a main body and sleeves and matching tubes disposed at both ends of the main body. A through cable groove is provided in the middle of the main body, sleeves, and matching tubes. A butt groove is provided inside the sleeve, and the matching tubes are slidably engaged in the butt groove. A ring-locking groove is provided circumferentially on the inner side of the butt groove. A ring-locking plate is provided on the outer wall of the end of the matching tube, and the ring-locking plate engages in the ring-locking groove to splice the protection pipe. During splicing, the matching tubes of two adjacent protection pipes are aligned with the butt groove, and the matching tubes are pressed inwards into the butt groove by hand. The ring-locking plate extends and engages in the ring-locking groove to fix the two protection pipes together. During the pressing and splicing process, the outer ring-locking plate slides and engages in the ring-locking groove. The sleeve and the side of the sleeve abut against each other to ensure the stability of the splicing and the airtightness of the inside of the protective tube after splicing. The protective tube is easy to splice and has high airtightness, which enhances the protection of the cable. However, the cable runs through the inside of the protective tube. Most existing protective tubes are cylindrical in shape. Although the cylindrical protective tubes are spliced ​​in sections to facilitate the disassembly and maintenance of the cable, the disassembled protective tube is still on the outside of the cable, which is not conducive to a comprehensive observation of the cable connection. The cylindrical cable protective tubes need to be cut to disassemble. If the cutting operation is not done properly, it may damage the cable itself or the insulation layer around it, which is not conducive to safe maintenance. Moreover, it is not convenient to install a new protective tube on the outside of the cable later.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing MPP cable protection pipes. Summary of the Invention

[0005] The purpose of this utility model is to provide a modular splicing MPP cable protection pipe to solve the problem mentioned in the background art where the cable is laid through the inside of the protection pipe. Most existing protection pipes are cylindrical in structure. Although the cylindrical protection pipe is easy to disassemble and inspect the cable by using a segmented splicing method, the disassembled protection pipe is still wrapped around the outside of the cable, which is not conducive to a comprehensive observation of the cable connection. The cylindrical cable protection pipe needs to be cut to disassemble. If the cutting operation is not done properly, it may damage the cable itself or the surrounding insulation layer, which is not conducive to safe maintenance. Moreover, it is inconvenient to install a new protection pipe outside the cable later.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular splicing MPP cable protection pipe, comprising a main protection pipe and a secondary protection pipe assembled on its side, wherein two reinforcing pipes are sleeved on the outside of the main protection pipe and the secondary protection pipe, and the assembly direction of the two reinforcing pipes is perpendicular to the assembly direction of the main protection pipe and the secondary protection pipe; the reinforcing pipes are provided with threaded holes, and bolts are threadedly installed in the threaded holes; a pressure-applying mechanism for reinforcing the combination of the main protection pipe and the secondary protection pipe is provided in the reinforcing pipes.

[0007] Preferably, a sealing sheet is fixedly connected to the end face of the main protective tube near the secondary protective tube, and an embedded groove is provided on the secondary protective tube to engage with the sealing sheet.

[0008] Preferably, the pressurizing mechanism includes an outer circular groove formed on the outer wall of the main protective pipe, in which a driven disc is fixedly connected; and an inner circular groove formed on the inner wall of the reinforcing pipe, in which an active disc is fixedly connected.

[0009] Preferably, both the driven disk and the driving disk have inclined end faces, and the inclined surface of the driven disk is pressed and adhered to the inclined surface of the driving disk.

[0010] Preferably, the main protective pipe and the secondary protective pipe are provided with a reinforcement mechanism for stable connection between adjacent reinforcement pipes.

[0011] Preferably, the reinforcement mechanism includes elastic fixing buckles fixedly installed on the outer walls of the main protective pipe and the secondary protective pipe, and a cylindrical rod is engaged in the elastic fixing buckle; both ends of the cylindrical rod are threaded with threaded rods, and a positioning post is fixedly connected to the end face of the threaded rod; a positioning hole is opened on the reinforcement pipe, and the positioning post moves laterally and engages with the positioning hole.

[0012] Preferably, a protruding rod is fixedly connected to the cylindrical rod, and an externally threaded connecting rod is connected through the protruding rod, with a nut fitted on the external thread of the externally threaded connecting rod.

[0013] Compared with the prior art, the advantages of this utility model are: the modular splicing MPP cable protection pipe can be flexibly assembled and protected on the outside of the cable. When the cable connection fails, the protection pipe can be easily installed and removed from the outside of the cable, making it convenient to use.

[0014] Furthermore, the reinforcing pipe is equipped with a pressurizing mechanism that combines the main protective pipe and the auxiliary protective pipe. When the reinforcing pipe is installed outside the main protective pipe and the auxiliary protective pipe, the active disc inside the reinforcing pipe presses against the driven disc outside the main protective pipe and the auxiliary protective pipe. Through the squeezing action of the inclined surfaces of the two, the main protective pipe and the auxiliary protective pipe are more tightly combined.

[0015] Furthermore, the main protective pipe and the auxiliary protective pipe are equipped with a reinforcement mechanism to stabilize the connection between adjacent reinforcement pipes. After the reinforcement pipe is assembled with the main protective pipe and the auxiliary protective pipe, the cylindrical rod is snapped into the elastic fixing buckle, and the positioning pins on both sides of the cylindrical rod are controlled to move and extend into the positioning holes opened on the end face of the reinforcement pipe, thereby improving the connection stability between two horizontally adjacent reinforcement pipes.

[0016] The external threaded connecting rod is connected through the protruding rod, and the installation position of the external threaded connecting rod is locked by the nut. When the nut is turned, the two cylindrical rods are subjected to inward compressive force. The main protective tube and the secondary protective tube can be further pressed together by the elastic fixing buckle, which improves the stability of the modular splicing protective tube assembly. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the combined state of the main protection tube and the auxiliary protection tube of this utility model.

[0018] Figure 2 is a schematic diagram of the main protection tube and the auxiliary protection tube of this utility model in a separated state.

[0019] Figure 3 is a schematic diagram of the cross-section of the reinforced pipe of this utility model.

[0020] Figure 4 is a schematic diagram of the driven disc structure of this utility model.

[0021] Figure 5 is a schematic diagram of the active disk structure of this utility model.

[0022] Figure 6 is a schematic diagram of the cylindrical rod structure of this utility model.

[0023] Figure 7 is a schematic diagram of the positioning column structure of this utility model.

[0024] Figure 8 is a schematic diagram of the external threaded connecting rod structure of this utility model.

[0025] In the diagram: 1. Main protective tube; 2. Secondary protective tube; 3. Reinforcing tube; 4. Threaded hole; 5. Bolt; 6. Inner groove; 7. Sealing plate; 8. Outer groove; 9. Driven disc; 10. Inner groove; 11. Driven disc; 12. Elastic retaining buckle; 13. Cylindrical rod; 14. Threaded rod; 15. Positioning pin; 16. Positioning hole; 17. Protruding rod; 18. External threaded connecting rod; 19. Nut. Detailed Implementation

[0026] 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.

[0027] Example 1: Please refer to Figures 1-8. This utility model provides the following technical solution: A modular splicing MPP cable protection pipe, including a main protection pipe 1 and a secondary protection pipe 2 assembled on its side. Two reinforcing pipes 3 are sleeved on the outside of the main protection pipe 1 and the secondary protection pipe 2. The assembly direction of the two reinforcing pipes 3 is perpendicular to the assembly direction of the main protection pipe 1 and the secondary protection pipe 2. A threaded hole 4 is opened on the reinforcing pipe 3, and a bolt 5 is threadedly installed in the threaded hole 4. A pressure-pressurizing mechanism for reinforcing the combination of the main protection pipe 1 and the secondary protection pipe 2 is provided in the reinforcing pipe 3.

[0028] A sealing sheet 7 is fixedly connected to the end face of the main protective tube 1 near the secondary protective tube 2, and an embedded groove 6 is provided on the secondary protective tube 2 to engage with the sealing sheet 7.

[0029] The pressurization mechanism includes an outer circular groove 8 formed on the outer wall of the main protective pipe 1, in which a driven disc 9 is fixedly connected; and an inner circular groove 10 formed on the inner wall of the reinforcing pipe 3, in which an active disc 11 is fixedly connected.

[0030] Both the driven disk 9 and the driving disk 11 have inclined end faces, and the inclined surface of the driven disk 9 is pressed and adhered to the inclined surface of the driving disk 11.

[0031] When assembling the protective tubes, the main protective tube 1 and the auxiliary protective tube 2 are symmetrically attached and connected. The sealing piece 7 in the main protective tube 1 is engaged in the embedded groove 6 opened on the auxiliary protective tube 2. Then, the two reinforcing tubes 3 are sleeved on the outside of the main protective tube 1 and the auxiliary protective tube 2. The bolt 5 is installed through the threaded hole 4 in the reinforcing tube 3. The upper and lower combined reinforcing tubes 3 are reinforced by the bolt 5, and the cable protection tubes are initially assembled.

[0032] During the process of rotating and tightening the bolt 5, the upper and lower reinforcing pipes 3 move closer together. The active disc 11 in the reinforcing pipe 3 presses against the driven disc 9 on the outer wall of the main protective pipe 1 and the auxiliary protective pipe 2. The inclined surface of the active disc 11 presses against the inclined surface of the driven disc 9. The driven disc 9 is squeezed, causing the main protective pipe 1 and the auxiliary protective pipe 2 combined in the front and rear to move and stick together, maintaining the stability of the modular cable protection pipe combination. The modularly installed protection pipe can be easily assembled and used on the outside of the cable, which is convenient for maintenance work after the cable is laid and used.

[0033] Example 2: Based on Example 1, a reinforcement mechanism is also disclosed, the specific structure of which is as follows: a reinforcement mechanism is provided on the outside of the main protection pipe 1 and the secondary protection pipe 2 to stably connect adjacent reinforcement pipes 3.

[0034] The reinforcement mechanism includes elastic fixing buckles 12 fixedly installed on the outer walls of the main protective pipe 1 and the secondary protective pipe 2. A cylindrical rod 13 is engaged in the elastic fixing buckle 12. Both ends of the cylindrical rod 13 are threaded with threaded rods 14, and a positioning post 15 is fixedly connected to the end face of the threaded rod 14. A positioning hole 16 is opened on the reinforcement pipe 3, and the positioning post 15 is engaged with the positioning hole 16 by lateral movement.

[0035] A protruding rod 17 is fixedly connected to the cylindrical rod 13. An externally threaded connecting rod 18 is connected through the protruding rod 17. A nut 19 is fitted onto the external thread of the externally threaded connecting rod 18.

[0036] After the reinforcing pipe 3 is installed, the horizontally adjacent reinforcing pipes 3 can be stably connected through the reinforcing mechanism. The cylindrical rod 13 is snapped into the elastic fixing buckle 12, and the threaded rods 14 at both ends of the cylindrical rod 13 are controlled to rotate. The threaded rods 14 push the positioning post 15 to move laterally. The positioning post 15 moves and extends into the positioning hole 16 opened on the reinforcing pipe 3. The connection between the positioning post 15 and the cylindrical rod 13 and other rods makes the two horizontally adjacent reinforcing pipes 3 stably connected.

[0037] Next, the external threaded connecting rod 18 is passed through and connected to the protruding rod 17 above the cylindrical rod 13. The control nut 19 is sleeved on the outside of the external threaded connecting rod 18 and rotates. The external threaded connecting rod 18 is locked and installed on the protruding rod 17 by the nut 19. When the locking nut 19 is rotated, it can push the two protruding rods 17 and the cylindrical rod 13 closer together. The cylindrical rod 13 drives the main protective tube 1 and the secondary protective tube 2 to move closer together through the elastic fixing buckle 12, which further improves the stability of the modular splicing protective tube combination.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A modular splicing MPP cable protection pipe, comprising a main protection pipe (1) and a secondary protection pipe (2) assembled on its side, characterized in that: Two reinforcing pipes (3) are sleeved on the outside of the main protective pipe (1) and the auxiliary protective pipe (2). The assembly direction of the two reinforcing pipes (3) is perpendicular to the assembly direction of the main protective pipe (1) and the auxiliary protective pipe (2). A threaded hole (4) is opened on the reinforcing pipe (3), and a bolt (5) is threaded in the threaded hole (4). A pressure mechanism for reinforcing the main protective pipe (1) and the auxiliary protective pipe (2) is provided in the reinforcing pipe (3).

2. The modular splicing MPP cable protection pipe according to claim 1, characterized in that: The main protective tube (1) is fixedly connected to a sealing plate (7) near the end face of the secondary protective tube (2), and the secondary protective tube (2) has an embedded groove (6) that engages with the sealing plate (7).

3. The modular splicing MPP cable protection pipe according to claim 1, characterized in that: The pressurizing mechanism includes an outer circular groove (8) on the outer wall of the main protective pipe (1), in which a driven disc (9) is fixedly connected; and an inner circular groove (10) is provided on the inner wall of the reinforcing pipe (3), in which an active disc (11) is fixedly connected.

4. The modular splicing MPP cable protection pipe according to claim 3, characterized in that: Both the driven disk (9) and the driving disk (11) have inclined end faces, and the inclined surface of the driven disk (9) is pressed and adhered to the inclined surface of the driving disk (11).

5. A modular splicing MPP cable protection pipe according to claim 1, characterized in that: The main protective pipe (1) and the secondary protective pipe (2) are provided with a reinforcement mechanism that connects adjacent reinforcement pipes (3) to each other.

6. A modular splicing MPP cable protection pipe according to claim 5, characterized in that: The reinforcement mechanism includes an elastic fixing buckle (12) fixedly installed on the outer wall of the main protective pipe (1) and the secondary protective pipe (2). A cylindrical rod (13) is engaged in the elastic fixing buckle (12). Both ends of the cylindrical rod (13) are threadedly connected to threaded rods (14). A positioning post (15) is fixedly connected to the end face of the threaded rod (14). A positioning hole (16) is opened on the reinforcement pipe (3). The positioning post (15) moves laterally and engages with the positioning hole (16).

7. A modular splicing MPP cable protection pipe according to claim 6, characterized in that: A protruding rod (17) is fixedly connected to the cylindrical rod (13), and an external threaded connecting rod (18) is connected through the protruding rod (17). A nut (19) is fitted on the external thread of the external threaded connecting rod (18).

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