MPP cable protection pipe convenient to assemble

Abstract

The utility model relates to the technical field of cable protection, in particular to an MPP cable protection pipe convenient to assemble, which comprises a flange, a first sealing gasket and a protection layer, the left side of the outer wall of the flange is fixedly connected with the first sealing gasket, the left side of the outer wall of the first sealing gasket is provided with an MPP cable protection pipe assembly structure, and the inner wall of the protection layer is fixedly connected with an insulating layer. The inner wall of the insulating layer is fixedly connected with a cable. According to the MPP cable protection pipe convenient to assemble, through the MPP cable protection pipe assembling structure and the first sealing gasket, the relative sealing performance of the connecting position of the flange and the threaded sleeve can be guaranteed, the threaded sleeve is in threaded connection with the second protection pipe, the operation process is convenient and fast, the situation that in the prior art, a worker rotates a plurality of bolts for fixing is avoided, and meanwhile the working efficiency is improved. The first protection pipe and the second protection cross section are connected through the clamping blocks, gaps between the protection pipes are effectively reduced, the protection quality is improved, and the problem that in the prior art, gaps are large when the protection pipes are connected in a segmented mode is solved.

Description

Technical Field

[0001] This utility model relates to the field of cable protection technology, specifically to an MPP cable protection tube that is easy to assemble. Background Technology

[0002] A cable is a special type of conductor. Cables are typically made of several or groups of conductors (at least two conductors per group) twisted together, resembling a rope. Each group of conductors is insulated from each other and is often twisted around a central conductor. MPP pipes, also known as MPP power cable protection pipes, are divided into open-cut and trenchless types. Trenchless MPP pipes are also called MPP jacking pipes or drag pipes. MPP pipes use modified polypropylene as the main raw material. They are characterized by high temperature resistance and external pressure resistance, and are suitable for medium and low voltage power transmission cable conduits below 10KV.

[0003] For example, an MPP cable protection pipe with announcement number "CN222147064U" is designed for easy assembly. It utilizes a connecting mechanism to detach the outer cylinder, allowing the upper part of the protection pipe to align with the lower part. At this point, the L-shaped locking block can disengage from the L-shaped slot, facilitating the separation of the protection pipe body. This makes subsequent replacement and cable maintenance easier, solving the problem of existing cable protection pipes being difficult to assemble, disassemble, and replace quickly. However, in the above method, the cable protection pipe is fixed using multiple connecting bolts in the connecting mechanism. This requires workers to repeatedly rotate these bolts, making the process cumbersome and impractical. Furthermore, the two shells of the protection pipe are connected in segments using locking blocks, resulting in large gaps between the blocks and lower protection quality. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of fixed installation using multiple connecting bolts in the connection mechanism, which requires operators to repeatedly rotate multiple bolts for fixation, making the operation cumbersome and impractical. In addition, the connection between the two shells of the protective tube body is segmented by locking blocks, resulting in large gaps between the locking blocks and low protection quality. Therefore, this utility model proposes an MPP cable protection tube that is easy to assemble.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design an easy-to-assemble MPP cable protection pipe, including a flange, a first sealing gasket, and a protective layer. The left side of the outer wall of the flange is fixedly connected to the first sealing gasket. The left side of the outer wall of the first sealing gasket is provided with an MPP cable protection pipe assembly structure. An insulating layer is fixedly connected to the inner wall of the protective layer, and a cable is fixedly connected to the inner wall of the insulating layer.

[0007] Preferably, the MPP cable protection tube assembly structure includes a threaded sleeve. The left side of the inner wall of the threaded sleeve is rotatably connected to the first protection tube via a bearing. A second sealing gasket is fixedly connected to the right end of the first protection tube. The right side of the outer wall of the second sealing gasket is in contact with the second protection tube. The right side of the inner wall of the threaded sleeve is threadedly connected to the second protection tube. Multiple supports are fixedly connected to the inner walls of the first and second protection tubes. Clamping blocks are fixedly connected to the inner walls of the first and second protection tubes. The inner walls of the first and second protection tubes are respectively inserted into each other via clamping blocks.

[0008] Preferably, the right side of the outer wall of the threaded sleeve is in contact with the first sealing gasket.

[0009] Preferably, the outer wall of the second protective tube is fixedly connected to the flange and the first sealing gasket.

[0010] Preferably, the outer wall of the support is in contact with the protective layer.

[0011] This utility model proposes an easy-to-assemble MPP cable protection tube, with the following advantages: Through the MPP cable protection tube assembly structure, the left end of the first protection tube is pushed outward to separate the locking block. The ends of the first and second protection tubes are connected by the locking block for easy cable threading. Pressing the first protection tube inward inserts the locking block into the groove machined on the inner wall of the first protection tube, thus connecting the ends of the first protection tube. The cable then contacts the support, which provides support for the cable. Pushing the second protection tube outward separates the locking block on the right end, separating the upper and lower parts of the second protection tube. Then, the upper and lower parts of the second protection tube are placed over the outer wall of the cable, and the second protection tube is pressed inward, causing the locking block on the right end to engage with the groove machined on the inner wall of the second protection tube, thus connecting the first protection tube. The second protection tube is then connected to the cable. The threaded sleeve is connected to the second protective tube, which has threads machined on its left end. Further rotation of the threaded sleeve allows it to rotate via a bearing on the outer wall of the first protective tube, enabling it to engage with the threaded sleeve. Once the threaded sleeve is threadedly connected to the second protective tube, the right side of the outer wall of the threaded sleeve abuts against the first sealing gasket, and simultaneously, the left end of the second protective tube abuts against the second sealing gasket. The first sealing gasket ensures a relative seal at the flange and threaded sleeve connection. The threaded connection between the threaded sleeve and the second protective tube is relatively convenient, avoiding the need for operators to rotate multiple bolts for fixing as in existing technologies. Furthermore, the use of a clamp to connect the first and second protective tube cross-sections effectively reduces the gap between the protective tubes, improving protection quality and avoiding the problem of large gaps in segmented connections of protective tubes in existing technologies. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A front sectional view;

[0014] Figure 3 for Figure 2 A front sectional view of the first protective pipe;

[0015] Figure 4 for Figure 2 A cross-sectional view of the second protective pipe in the middle;

[0016] Figure 5 for Figure 2 Left sectional view of the first protective pipe in the middle;

[0017] Figure 6 for Figure 2 A three-dimensional sectional view of the first protective pipe.

[0018] In the diagram: 1. MPP cable protection pipe assembly structure, 101. Threaded sleeve, 102. First protection pipe, 103. Second protection pipe, 104. Support, 105. Clamp, 106. Second sealing gasket, 2. Flange, 3. First sealing gasket, 4. Protective layer, 5. Insulation layer, 6. Cable. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] See attached document Figure 1-6 In this embodiment, an MPP cable protection pipe that is easy to assemble includes a flange 2, a first sealing gasket 3 and a protective layer 4. The left side of the outer wall of the flange 2 is fixedly connected to the first sealing gasket 3, and the left side of the outer wall of the first sealing gasket 3 is provided with an MPP cable protection pipe assembly structure 1.

[0021] An insulating layer 5 is fixedly connected to the inner wall of the protective layer 4, and a cable 6 is fixedly connected to the inner wall of the insulating layer 5. The cable consists of the protective layer 4, the insulating layer 5, and the cable 6. The insulating layer 5 is made of polyvinyl chloride (PVC), and the protective layer 4 is made of polyethylene (PE). The right side of the outer wall of the threaded sleeve 101 is in contact with the first sealing gasket 3. The outer wall of the second protective tube 103 is fixedly connected to the flange 2 and the first sealing gasket 3. The outer wall of the support 104 is in contact with the protective layer 4. Both the first sealing gasket 3 and the second sealing gasket 106 are made of rubber.

[0022] See attached document Figure 1-6 The MPP cable protection tube assembly structure 1 includes a threaded sleeve 101. The left side of the inner wall of the threaded sleeve 101 is rotatably connected to the first protection tube 102 via a bearing. The right end of the first protection tube 102 is fixedly connected to a second sealing gasket 106. The right side of the outer wall of the second sealing gasket 106 is in contact with the second protection tube 103. The right side of the inner wall of the threaded sleeve 101 is threadedly connected to the second protection tube 103.

[0023] The outer wall of the second protective tube 103 has a thread on the left end. Multiple supports 104 are fixedly connected to the inner walls of the first protective tube 102 and the second protective tube 103. The multiple supports 104 can support the cable. The inner walls of the first protective tube 102 and the second protective tube 103 are fixedly connected to the locking blocks 105. The inner walls of the first protective tube 102 and the second protective tube 103 are respectively inserted into each other through the locking blocks 105.

[0024] Working principle:

[0025] MPP cable protection pipe assembly work:

[0026] When MPP cable protection pipes are needed to protect cables, firstly, the left end of the first protection pipe 102 is pushed outward to separate the locking block 105. The locking block 105 is an elastic hexagonal prism rubber block with a hollow space. The material of the first protection pipe 102 is polyethylene (PE). PE cable protection pipes have good chemical corrosion resistance, wear resistance and flexibility, and are suitable for occasions requiring chemical corrosion resistance. The shape of the first protection pipe 102 is such that the left end has a separable cross section and the right end is an integral tube. The ends of the first protection pipe 102 and the second protection pipe 103 are connected by the locking block 105. After the left end of the first protection pipe 102 is separated, it is easy to thread the cable. Then, the cable is inserted from the left end of the first protection pipe 102. The cable consists of a protective layer 5, an insulation layer 5 and a cable 6. Further press the first protection pipe 102 inward to insert the locking block 105 into the slot processed on the inner wall of the first protection pipe 102, so that the end of the first protection pipe 102 is connected. At the same time, the cable contacts the support 104, and the support 104 can support the cable.

[0027] Then, the second protective tube 103 is pushed outward to separate the right end locking block 105. The second protective tube 103 is divided into upper and lower parts. Then, the upper and lower parts of the second protective tube 103 are placed on the outer wall of the cable and the second protective shell 10 is pressed inward to make the right end locking block 105 engage in the groove processed in the inner wall of the second protective tube, so that the first protective tube 103 is engaged. Then, the second protective tube 103 is connected to the threaded sleeve 101. The left end of the second protective tube 103 is processed with threads. The threaded sleeve 101 is further rotated so that it rotates through the bearing on the outer wall of the first protective tube 102, so that it can be engaged with the threaded sleeve 101.

[0028] When the threaded sleeve 101 is threadedly connected to the second protective tube 102, the right side of the outer wall of the threaded sleeve 101 will abut against the first sealing gasket 3, and at the same time, the left end of the second protective tube 103 will abut against the second sealing gasket 106. The first sealing gasket 3 can ensure the relative sealing of the connection between the flange 2 and the threaded sleeve 101, and the second sealing gasket 106 can ensure the relative sealing of the connection between the first protective tube 102 and the second protective tube 103. This movement can be used to assemble the cable protection tube and carry out cable protection work.

[0029] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An easy-to-assemble MPP cable protection pipe, comprising a flange (2), a first sealing gasket (3), and a protective layer (4), wherein the left side of the outer wall of the flange (2) is fixedly connected to the first sealing gasket (3), characterized in that: The first sealing gasket (3) has an MPP cable protection tube assembly structure (1) on the left side of its outer wall. An insulating layer (5) is fixedly connected to the inner wall of the protective layer (4). A cable (6) is fixedly connected to the inner wall of the insulating layer (5). The MPP cable protection tube assembly structure (1) includes a threaded sleeve (101). The left side of the inner wall of the threaded sleeve (101) is rotatably connected to the first protective tube (102) via a bearing. A second sealing gasket (106) is fixedly connected to the right end of the first protective tube (102). The outer right side of the pad (106) is in contact with the second protective tube (103), and the inner right side of the threaded sleeve (101) is threadedly connected to the second protective tube (103). Multiple supports (104) are fixedly connected to the inner walls of the first protective tube (102) and the second protective tube (103). A locking block (105) is fixedly connected to the inner walls of the first protective tube (102) and the second protective tube (103). The inner walls of the first protective tube (102) and the second protective tube (103) are respectively inserted into each other through the locking block (105).

2. The MPP cable protection pipe easy to assemble according to claim 1, characterized in that: The right side of the outer wall of the threaded sleeve (101) is in contact with the first sealing gasket (3).

3. The ease to assemble MPP cable protection pipe according to claim 2, characterized in that: The outer wall of the second protective tube (103) is fixedly connected to the flange (2) and the first sealing gasket (3).

4. The ease to assemble MPP cable protection pipe according to claim 3, characterized in that: The outer wall of the support (104) is attached to the protective layer (4).

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