MPP cable protection pipe with honeycomb compression resistance structure

Abstract

The utility model relates to power cable technical field provides a kind of MPP cable protection pipe with honeycomb compression resistance structure, including first shell, the bottom end of first shell is equipped with second shell, dismounting structure includes the engaging block of installation in the top of second shell, the bottom end of first shell is provided with engaging slot.The utility model is equipped with second shell by installing in the bottom end of first shell, the engaging block of the top of second shell can be engaged into the inside of the engaging slot of the bottom end of first shell, when engaging block is engaged into the inside of engaging slot, engaging block will be pushed to inside to buckle, after engaging block is completely engaged into engaging slot, first shell and second shell can be connected, the connecting block of the two sides of first shell and second shell can be slid into the inside of connecting slot, so when connecting block is slid into the inside of connecting slot, shell can be combined in honeycomb shape, multiple shells can be connected and combined together, to achieve the purpose that MPP cable protection pipe is convenient to dismount and connect.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, and in particular to an MPP cable protection pipe with a honeycomb pressure-resistant structure. Background Technology

[0002] MPP pipe, also known as MPP power cable protection pipe, or modified polypropylene power cable protection pipe in Chinese, is a type of pipe used in high-voltage power cable protection systems of 10KV and above. It features high temperature resistance and external pressure resistance. Its core function is to provide mechanical protection, corrosion prevention, and insulation for underground cables, preventing them from being damaged by soil compression, acid and alkali corrosion, and external excavation. It is widely used in underground cable laying scenarios such as urban power grid renovation, municipal engineering, rail transit, and industrial parks.

[0003] To this end, patent CN222355869U discloses a corrosion-resistant MPP power cable protection pipe with a pressure-resistant structure, comprising: an outer pipe, a support assembly provided on the inner wall of the outer pipe, and a connecting assembly provided on the outer wall of the outer pipe; wherein, the support assembly includes a cross support frame, an insert fixedly connected to the outer wall of the cross support frame, and several cable storage tubes fixedly connected to the outer wall of the cross support frame; the connecting assembly includes multiple limiting rings; wherein, a connecting rod is provided between the multiple limiting rings, the connecting rod includes two screws, and the two screws are connected by a screw thread, and a limiting ring is provided at one end of the screw; through the setting of the support assembly, in use, the insert is inserted into the inner wall of the outer pipe, which can improve the support effect of the outer pipe, thereby improving the protection performance of the cable for the cable inserted into the inner wall of the outer pipe; the setting of the cable storage tubes can also improve the protection effect of the cable.

[0004] The existing technical solutions described above have the following drawbacks: disassembly and assembly are difficult when multiple protective tubes are used; the protective tubes need to be installed and disassembled according to different situations; multiple protective tubes need to be combined for use; and the protective tubes need to be adaptable to different situations. Utility Model Content

[0005] The purpose of this invention is to provide an MPP cable protection pipe with a honeycomb pressure-resistant structure to solve the problem that existing MPP cable protection pipes are difficult to disassemble and connect.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an MPP cable protection pipe with a honeycomb pressure-resistant structure, including a first housing;

[0007] A second housing is installed at the bottom of the first housing. The first and second housings have through holes inside, and pressure-resistant plates are installed inside the first and second housings.

[0008] The pressure-resistant plate has mounting holes inside, and mounting screws are installed inside the mounting holes. A support frame is installed on the outside of the pressure-resistant plate.

[0009] Both sides of the first housing and the second housing are equipped with disassembly and assembly structures. The disassembly and assembly structures include a locking block installed on the top of the second housing and a locking groove provided at the bottom of the first housing.

[0010] In use, the pressure-resistant plates inside the first and second housings can be made of steel. The support frame inside the pressure-resistant plate is triangular and can support the pressure-resistant plate. The pressure-resistant plate can enhance the pressure resistance inside the first and second housings. The mounting screws can be screwed into the mounting holes to install and fix the support frame. The structural strength of the housing can be enhanced by strengthening the structure to prevent damage to the housing.

[0011] Preferably, a connecting structure is installed on the outer side of both the first housing and the second housing. The connecting structure includes connecting grooves installed at the top and bottom of the first housing and the second housing. A positioning block is provided inside the connecting groove. Connecting blocks are installed on both sides of the first housing and the second housing. The top and bottom of the connecting blocks are provided with positioning grooves. The connecting structure can connect the two housings together.

[0012] Preferably, the inner diameter of the positioning groove is larger than the outer diameter of the positioning block, and the connecting block and the connecting groove form a sliding structure, allowing the connecting block to slide into the connecting groove.

[0013] Preferably, a reinforcing structure is installed inside the first housing and the second housing. The reinforcing structure includes an outer wear-resistant layer disposed inside the first housing and the second housing, and an inner reinforcing layer disposed inside the outer wear-resistant layer. The reinforcing structure can enhance the structural strength of the housing.

[0014] Preferably, an inner wear-resistant layer is provided on the inner side of the reinforcing layer, and the inner diameter of the reinforcing layer is larger than the outer diameter of the inner wear-resistant layer. The reinforcing layer can strengthen the structural strength of the shell.

[0015] Preferably, the support frame is arranged in a ring shape and at equal intervals on the inner side of the pressure plate, which can enhance the pressure resistance of the pressure plate.

[0016] Preferably, the outer sidewall of the mounting screw is uniformly provided with external threads, and the inner sidewall of the mounting hole is uniformly provided with internal threads that cooperate with the external threads. The mounting screw and the mounting hole are connected by threads, and the mounting screw can be used to install the pressure plate.

[0017] Preferably, a baffle is installed at the top of the engaging groove, springs are installed on both sides of the baffle, and a buckle is installed on one side of the spring. The engaging block has a groove inside, and the disassembly and assembly structure can connect the first housing and the second housing together.

[0018] Preferably, the outer diameter of the engaging block is smaller than the inner diameter of the engaging groove, and the engaging block and the engaging groove form an engaging structure that is easy to disassemble.

[0019] Preferably, the spring is helical in shape, and the spring and the buckle form an elastic connection, and the spring is elastic.

[0020] The MPP cable protection pipe with honeycomb pressure-resistant structure provided by this utility model has the following advantages: during use, the outer shell can be disassembled and assembled through the disassembly and assembly structure, multiple protection pipes can be connected together through the connection structure, and the structural strength of the outer shell can be strengthened through the reinforcement structure to prevent damage to the outer shell.

[0021] By installing a second housing at the bottom of the first housing, the locking block at the top of the second housing can be engaged into the locking groove at the bottom of the first housing. When the locking block is engaged into the locking groove, due to the inclined surface of the latch, the locking block will be pushed inward towards the latch. After the locking block is fully engaged into the locking groove, the first housing and the second housing can be connected. The connecting blocks on both sides of the first housing and the second housing can slide into the connecting groove. The housing is hexagonal, so when the connecting blocks slide into the connecting groove, the housing can be assembled in a honeycomb shape. Multiple housings can be connected and combined together to achieve the purpose of easy disassembly and assembly of MPP cable protection pipe.

[0022] By providing an outer wear-resistant layer on the outside of the shell, which can be made of a composite modified material of ultra-high molecular weight polyethylene and silicon carbide particles, and a reinforcing layer made of modified polypropylene and glass fiber, the high strength of the fibers can be used to improve the tensile, bending, and extrusion resistance of the pipe. The inner wear-resistant layer is coated with polytetrafluoroethylene micro powder, which can protect the inner wall of the shell, reduce friction damage when the cable is inserted into the pipe, improve the corrosion resistance of the inner wall, and prevent the cable sheath from sticking to the inner wall of the pipe. This achieves the purpose of strengthening the structural strength of the MPP cable protection pipe. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0025] Figure 3 For the present utility model Figure 2 Enlarged cross-sectional view of point A in the middle section;

[0026] Figure 4 This is a schematic diagram of the three-dimensional combined structure of this utility model;

[0027] Figure 5 This is a schematic diagram of a three-dimensional partial cross-sectional structure of the reinforcing structure of this utility model.

[0028] The reference numerals in the figure are as follows: 1. First housing; 2. Second housing; 3. Pressure plate; 4. Support frame; 5. Mounting screw; 6. Mounting hole; 7. Connecting structure; 701. Connecting block; 702. Positioning groove; 703. Connecting groove; 704. Positioning block; 8. Through hole; 9. Disassembly and assembly structure; 901. Engaging groove; 902. Engaging block; 903. Buckle; 904. Spring; 905. Baffle; 906. Groove; 10. Reinforcing structure; 1001. Outer wear-resistant layer; 1002. Reinforcing layer; 1003. Inner wear-resistant layer. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-5 The present invention provides an MPP cable protection pipe with a honeycomb pressure-resistant structure, comprising a first housing 1.

[0031] A second housing 2 is installed at the bottom of the first housing 1. A reinforcing structure 10 is installed inside the first housing 1 and the second housing 2. The reinforcing structure 10 includes an outer wear-resistant layer 1001 inside the first housing 1 and the second housing 2, an inner reinforcing layer 1002 inside the outer wear-resistant layer 1001, and an inner wear-resistant layer 1003 inside the inner reinforcing layer 1002. The inner diameter of the reinforcing layer 1002 is larger than the outer diameter of the inner wear-resistant layer 1003.

[0032] See attached document Figure 5As shown, the pressure-resistant plate 3 inside the first housing 1 and the second housing 2 can be made of steel. The support frame 4 inside the pressure-resistant plate 3 is triangular and can support the pressure-resistant plate 3. The pressure-resistant plate 3 can enhance the pressure resistance inside the first housing 1 and the second housing 2. The mounting screw 5 can be screwed into the mounting hole 6 to install and fix the support frame 4. The outer wear-resistant layer 1001 on the outer side of the housing can be made of a composite modified material of ultra-high molecular weight polyethylene and silicon carbide particles. The wear resistance can be improved by the high hardness of silicon carbide particles, and the impact can be mitigated by the toughness of ultra-high molecular weight polyethylene. The reinforcing layer 1002 can be made of modified polypropylene and glass fiber. The high strength of the fiber can improve the tensile, bending and extrusion resistance of the pipe. The inner wear-resistant layer 1003 is coated with polytetrafluoroethylene micro powder, which can protect the inner wall of the housing, reduce friction damage when the cable is inserted into the pipe, improve the corrosion resistance of the inner wall, and prevent the cable sheath from sticking to the inner wall of the pipe.

[0033] A connecting structure 7 is installed on the outer side of both the first housing 1 and the second housing 2. The connecting structure 7 includes connecting grooves 703 installed at the top and bottom of the first housing 1 and the second housing 2. A positioning block 704 is provided inside the connecting groove 703. Connecting blocks 701 are installed on both sides of the first housing 1 and the second housing 2. A positioning groove 702 is provided at the top and bottom of the connecting block 701. The inner diameter of the positioning groove 702 is larger than the outer diameter of the positioning block 704. The connecting block 701 and the connecting groove 703 form a sliding structure.

[0034] See attached document Figure 1-2 and attached Figure 4 As shown, the connecting blocks 701 on both sides of the first housing 1 and the second housing 2 can slide into the connecting groove 703. The positioning block 704 inside the connecting groove 703 can slide into the positioning groove 702 outside the connecting block 701. The positioning block 704 and the positioning groove 702 can improve the assembly effect. The housing is hexagonal, so when the connecting block 701 slides into the connecting groove 703, the housing can be assembled in a honeycomb shape, and multiple housings can be connected and combined together.

[0035] The first housing 1 and the second housing 2 are provided with through holes 8, and pressure-resistant plates 3 are installed inside the first housing 1 and the second housing 2.

[0036] The pressure plate 3 has an internal mounting hole 6, and a mounting screw 5 is installed inside the mounting hole 6. The outer side wall of the mounting screw 5 is uniformly provided with external threads, and the inner side wall of the mounting hole 6 is uniformly provided with internal threads that cooperate with the external threads. The mounting screw 5 and the mounting hole 6 are connected by threads.

[0037] Support frames 4 are installed on the outer side of the pressure plate 3. The support frames 4 are distributed in a ring and are arranged at equal intervals on the inner side of the pressure plate 3.

[0038] Both sides of the first housing 1 and the second housing 2 are equipped with disassembly and assembly structures 9. The disassembly and assembly structure 9 includes a locking block 902 installed at the top of the second housing 2. The outer diameter of the locking block 902 is smaller than the inner diameter of the locking groove 901. The locking block 902 and the locking groove 901 constitute a locking structure.

[0039] The bottom end of the first housing 1 is provided with a locking groove 901. A baffle 905 is installed at the top of the locking groove 901. Springs 904 are installed on both sides of the baffle 905. The springs 904 are spiral in shape. The springs 904 and the buckle 903 form an elastic connection.

[0040] A buckle 903 is installed on one side of the spring 904, and a groove 906 is provided inside the locking block 902.

[0041] See attached document Figure 2-3 As shown, the locking block 902 at the top of the second housing 2 can be locked into the locking groove 901 at the bottom of the first housing 1. The locking block 902 and the locking groove 901 form a locking structure. The baffle 905 and the buckle 903 inside the locking groove 901 are connected by a spring 904. When the locking block 902 is locked into the locking groove 901, due to the slope of the buckle 903, the locking block 902 will be pushed inward by the buckle 903. After the locking block 902 is fully locked into the locking groove 901, due to the elasticity of the spring 904, the elasticity of the spring 904 will drive the buckle 903 to reset and lock into the groove 906 inside the locking block 902. The buckle 903 can make the locking effect of the locking block 902 better. Due to the slope of the buckle 903, disassembly and installation are relatively simple. In this way, the first housing 1 and the second housing 2 can be connected.

[0042] 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. An MPP cable protection pipe with a honeycomb pressure-resistant structure, comprising a first housing (1); Its features are: A second housing (2) is installed at the bottom of the first housing (1). Through holes (8) are provided inside the first housing (1) and the second housing (2). Pressure-resistant plates (3) are installed inside the first housing (1) and the second housing (2). The pressure-resistant plate (3) has an internal mounting hole (6), and a mounting screw (5) is installed inside the mounting hole (6). A support frame (4) is installed on the outside of the pressure-resistant plate (3). The first housing (1) and the second housing (2) are equipped with disassembly and assembly structures (9) on both sides. The disassembly and assembly structure (9) includes a locking block (902) installed on the top of the second housing (2) and a locking groove (901) is provided at the bottom of the first housing (1).

2. The MPP cable protection pipe with a honeycomb pressure-resistant structure according to claim 1, characterized in that: A connecting structure (7) is installed on the outer side of the first housing (1) and the second housing (2). The connecting structure (7) includes a connecting groove (703) installed at the top and bottom of the first housing (1) and the second housing (2). A positioning block (704) is provided inside the connecting groove (703). A connecting block (701) is installed on both sides of the first housing (1) and the second housing (2). A positioning groove (702) is provided at the top and bottom of the connecting block (701).

3. The MPP cable protection pipe with a honeycomb pressure-resistant structure according to claim 2, characterized in that: The inner diameter of the positioning groove (702) is larger than the outer diameter of the positioning block (704), and the connecting block (701) and the connecting groove (703) form a sliding structure.

4. The MPP cable protection pipe with a honeycomb pressure-resistant structure according to claim 1, characterized in that: The first housing (1) and the second housing (2) are equipped with a reinforcing structure (10). The reinforcing structure (10) includes an outer wear-resistant layer (1001) disposed inside the first housing (1) and the second housing (2). An reinforcing layer (1002) is disposed on the inner side of the outer wear-resistant layer (1001).

5. An MPP cable protection pipe with a honeycomb pressure-resistant structure according to claim 4, characterized in that: An inner wear-resistant layer (1003) is provided on the inner side of the reinforcing layer (1002), and the inner diameter of the reinforcing layer (1002) is larger than the outer diameter of the inner wear-resistant layer (1003).

6. The MPP cable protection pipe with a honeycomb compression-resistant structure according to claim 1, characterized in that: The support frame (4) is arranged in a ring shape, and the support frame (4) is arranged at equal intervals on the inner side of the pressure plate (3).

7. An MPP cable protection pipe with a honeycomb pressure-resistant structure according to claim 1, characterized in that: The mounting screw (5) has an external thread evenly distributed on its outer side wall, and the mounting hole (6) has an internal thread evenly distributed on its inner side wall that cooperates with the external thread. The mounting screw (5) and the mounting hole (6) are connected by threads.

8. The MPP cable protection pipe with a honeycomb pressure-resistant structure according to claim 1, characterized in that: A baffle (905) is installed at the top of the inside of the engaging groove (901), and springs (904) are installed on both sides of the baffle (905). A buckle (903) is installed on one side of the spring (904), and a groove (906) is provided inside the engaging block (902).

9. An MPP cable protection pipe with a honeycomb compression-resistant structure according to claim 8, characterized in that: The outer diameter of the engaging block (902) is smaller than the inner diameter of the engaging groove (901), and the engaging block (902) and the engaging groove (901) constitute an engaging structure.

10. An MPP cable protection pipe with a honeycomb pressure-resistant structure according to claim 8, characterized in that: The spring (904) is spiral in shape, and the spring (904) and the buckle (903) form an elastic connection.

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