Quick connection type MPP power cable sheath pipe

Abstract

The utility model relates to the technical field of sheath pipes, and especially relates to a rapid connection type MPP power cable sheath pipe. According to the technical scheme, the MPP power cable sheath pipe comprises an MPP power cable sheath pipe body and a connector, the two ends of the connector are communicated, annular insertion grooves are formed in the two ends of the connector respectively, the ends of the MPP power cable sheath pipe body are located in the annular insertion grooves, and sealing rings are arranged in the two annular insertion grooves respectively. And a plurality of penetrating notches are formed in the positions, close to the two ends, of the outer surface of the connector in an annular array at equal intervals, fixing screws are movably inserted into the penetrating notches, and the tail ends of the fixing screws are located in the MPP power cable sheath pipe body. According to the utility model, the connection of the MPP power cable sheath tube can be rapidly completed, the construction efficiency is improved, and the subsequent disassembly and replacement of the MPP power cable sheath tube are also facilitated.

Description

A quick-connect type MPP power cable sheath Technical Field

[0001] This utility model relates to the field of cable sheathing technology, specifically a quick-connect type MPP power cable sheathing. Background Technology

[0002] MPP power cable sheathing is a high-performance pipe material specifically designed to protect power cables. Its full name is modified polypropylene power cable protective sheathing. Made primarily of modified polypropylene through extrusion molding, it features high temperature resistance (can be used continuously at 70℃, with short-term temperature tolerance up to 105℃), corrosion resistance (resistant to acids, alkalis, salts, and other chemical substances), impact resistance (high compressive strength, not easily broken), and excellent insulation (avoiding the risk of leakage). Furthermore, its smooth inner wall reduces cable threading resistance and facilitates convenient construction. Therefore, it is widely used in urban power grid construction, municipal engineering, industrial parks, and other underground power cable laying scenarios. It effectively protects cables from external mechanical damage, chemical corrosion, and environmental impacts, extending cable lifespan and improving the safety and reliability of power transmission systems.

[0003] Currently, MPP power cable sheaths are typically connected using hot-melt welding, which requires specialized welding equipment, is cumbersome to operate, and has low connection efficiency. Furthermore, the connected sheaths are not easy to disassemble, maintain, or replace. Therefore, we propose a quick-connect MPP power cable sheath. Summary of the Invention

[0004] The purpose of this utility model is to provide a quick-connect MPP power cable sheath, which has the advantages of being able to quickly complete the connection of MPP power cable sheaths, improving construction efficiency, and facilitating the subsequent disassembly and replacement of MPP power cable sheaths. It solves the problem that current MPP power cable sheaths are usually connected by hot-melt welding, which requires professional welding equipment, is relatively cumbersome to operate, has low connection efficiency, and is not convenient for disassembly, maintenance and replacement after connection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect MPP power cable sheath, comprising an MPP power cable sheath body and a connector, wherein both ends of the connector are through, and each end of the connector is provided with an annular slot, and the end of the MPP power cable sheath body is located inside the annular slot. A sealing ring is provided inside each of the two annular slots. Several through slots are evenly spaced in an annular array near both ends of the outer surface of the connector. A fixing screw is movably inserted into the through slot, and the end of the fixing screw is located inside the MPP power cable sheath body.

[0006] Preferably, the inner walls of the two annular slots are provided with rounded corners near both ends of the MPP power cable sheath, which facilitates the insertion of the main body end into the annular slot.

[0007] Preferably, sliding rings are slidably fitted onto the outer surface of the connector near both ends. Each sliding ring has a through hole near each through slot, through which a fixing screw passes. Fixing nuts are fixedly installed on both sides of the outer surface of the two sliding rings. Double-ended screws are rotatably installed on both sides of the outer surface of the connector. The fixing screw passes through the through hole before passing through the through slot. After the end of the fixing screw is inserted into the body of the MPP power cable sheath, rotating the double-ended screw causes the fixing nuts on the two sliding rings to move in opposite directions. The two sliding rings, in turn, move in opposite directions through the fixing screws, causing the ends of the MPP power cable sheaths to press against the sealing ring inside the annular slot, thus improving the sealing performance between the MPP power cable sheath and the connector.

[0008] Preferably, the four fixing nuts are respectively movably sleeved on the outer surface of the two double-ended screws near both ends. When the double-ended screws rotate, the fixing nuts drive the sliding ring to move.

[0009] Preferably, the outer surface of the double-ended screw is provided with an engagement notch near the middle position. The engagement notch facilitates the rotation of the double-ended screw with a wrench, thereby improving the convenience of installation and construction.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model achieves the effect of quickly connecting MPP power cable sheaths by setting up an MPP power cable sheath body, connector, annular slot, fixing screw, through slot, and sealing ring, thereby improving construction efficiency and facilitating subsequent disassembly and replacement of MPP power cable sheaths. The length of the MPP power cable sheath body is cut according to the usage requirements. When connecting two MPP power cable sheath bodies, they are placed at both ends of the connector, and the ends of the two MPP power cable sheath bodies are inserted into the annular slots at both ends of the connector. The ends of the MPP power cable sheath bodies contact the sealing ring inside the annular slot. The fixing screw passes through the through slot and enters the MPP power cable sheath body, thus fixing the MPP power cable sheath body and completing the connection between the MPP power cable sheath bodies.

[0012] 2. This utility model, by setting up sliding rings, through holes, double-ended screws, and fixing nuts, achieves the effect of improving the sealing performance between the MPP power cable sheath body and the connector. The fixing screw passes through the through hole before passing through the through slot. After the end of the fixing screw is inserted into the MPP power cable sheath body, rotating the double-ended screw causes the fixing nuts on the two sliding rings to move in opposite directions. The two sliding rings, in turn, drive the two MPP power cable sheath bodies to move in opposite directions through the fixing screw, so that the end of the MPP power cable sheath body squeezes the sealing ring inside the annular slot, thereby improving the sealing performance between the MPP power cable sheath body and the connector. Attached Figure Description

[0013] Figure 1 is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 is a partial three-dimensional cross-sectional view of the connector of this utility model;

[0015] Figure 3 is a partial three-dimensional structural diagram of the sliding ring of this utility model;

[0016] Figure 4 is a schematic diagram of the main structure of this utility model.

[0017] Reference numerals in the attached drawings: 1. MPP power cable sheath body; 2. Fixing screw; 3. Connector; 4. Sliding ring; 5. Double-ended screw; 6. Rounded corner; 7. Annular slot; 8. Sealing ring; 9. Through slot; 10. Through hole; 11. Fixing nut; 12. Engaging notch. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] As shown in Figures 1, 2, and 4, this utility model proposes a quick-connect MPP power cable sheath, comprising an MPP power cable sheath body 1 and a connector 3. The connector 3 is open at both ends, and each end of the connector 3 is provided with an annular slot 7. The end of the MPP power cable sheath body 1 is located inside the annular slot 7. The inner walls of the two annular slots 7 are provided with rounded corners 6 near the ends of the MPP power cable sheath body 1. The rounded corners 6 facilitate the insertion of the end of the MPP power cable sheath body 1 into the annular slots 7. The two annular slots 7 are provided with sealing rings 8. The outer surface of the connector 3 is provided with several through slots 9 arranged in an annular array at equal intervals near the ends. Fixing screws 2 are movably inserted into the through slots 9, and the ends of the fixing screws 2 are located inside the MPP power cable sheath body 1.

[0021] In use, the length of the MPP power cable sheath body 1 is cut according to the usage requirements. Then, when connecting two MPP power cable sheath bodies 1, they are placed at both ends of the connector 3, and the ends of the two MPP power cable sheath bodies 1 are inserted into the annular slots 7 at both ends of the connector 3. The ends of the MPP power cable sheath bodies 1 are in contact with the sealing rings 8 inside the annular slots 7. The fixing screws 2 pass through the through slots 9 and are inserted into the MPP power cable sheath bodies 1, thereby fixing the MPP power cable sheath bodies 1 and completing the connection between the MPP power cable sheath bodies 1.

[0022] Example 2

[0023] As shown in Figures 1-4, the present invention proposes a quick-connect type MPP power cable sheath. Compared with Embodiment 1, this embodiment further includes sliding rings 4 slidably fitted on the outer surface of the connector 3 near both ends. A through hole 10 is provided on the outer surface of the two sliding rings 4 near each through slot 9, and a fixing screw 2 passes through the through hole 10. The through slot 9 is elongated. Fixing nuts 11 are fixedly installed on both sides of the outer surface of the two sliding rings 4. Double-ended screws 5 are rotatably installed on both sides of the outer surface of the connector 3. Four fixing nuts 11 are movably fitted on the outer surface of the two double-ended screws 5 near both ends. A meshing notch 12 is provided on the outer surface of the double-ended screws 5 near the middle. The meshing notch 12 facilitates the meshing of the wrench and the double-ended screws 5, thereby facilitating the rotation of the double-ended screws 5 by the wrench.

[0024] In this embodiment, the fixing screw 2 passes through the through hole 10 before passing through the through slot 9. After the end of the fixing screw 2 is inserted into the body 1 of the MPP power cable sheath, the double-ended screw 5 is rotated. The fixing nuts 11 on the two sliding rings 4 drive the two sliding rings 4 to move in opposite directions. The two sliding rings 4, in turn, drive the two MPP power cable sheath bodies 1 to move in opposite directions through the fixing screw 2, so that the end of the MPP power cable sheath body 1 is squeezed against the sealing ring 8 inside the annular slot 7, thereby improving the sealing between the MPP power cable sheath body 1 and the connector 3.

[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A quick-connect type MPP power cable sheath, comprising an MPP power cable sheath body (1) and a connector (3), characterized in that: The connector (3) is open at both ends, and annular slots (7) are provided at both ends of the connector (3). The end of the MPP power cable sheath tube body (1) is located inside the annular slots (7). A sealing ring (8) is provided inside each of the two annular slots (7). Several through slots (9) are arranged in an annular array at equal intervals near both ends on the outer surface of the connector (3). A fixing screw (2) is movably inserted into the through slot (9), and the end of the fixing screw (2) is located inside the MPP power cable sheath tube body (1).

2. The quick-connect type MPP power cable sheath according to claim 1, characterized in that: The inner walls of the two annular slots (7) are provided with rounded corners (6) at both ends of the MPP power cable sheath body (1).

3. The quick-connect type MPP power cable sheath according to claim 1, characterized in that: The connector (3) has sliding rings (4) slidably sleeved on its outer surface near both ends. The outer surfaces of the two sliding rings (4) are provided with through holes (10) near each through slot (9), and the fixing screws (2) pass through the through holes (10). Fixing nuts (11) are fixedly installed on both sides of the outer surfaces of the two sliding rings (4). Double-headed screws (5) are rotatably installed on both sides of the outer surface of the connector (3).

4. The quick-connect type MPP power cable sheath according to claim 3, characterized in that: The four fixing nuts (11) are respectively movably sleeved on the outer surface of the two double-ended screws (5) near the two ends.

5. The quick-connect type MPP power cable sheath according to claim 3, characterized in that: The double-ended screw (5) has a meshing notch (12) on its outer surface near the middle position.

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