An electric power usage buried PE power conduit
The design of flexible sleeves and auxiliary belts enables quick and convenient connection of PE power pipelines, solving the problem of cumbersome and time-consuming connection in existing technologies, and improving construction efficiency and connection quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG QINGSU IND CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
The existing PE power pipeline connection process is cumbersome, time-consuming, labor-intensive, and inefficient.
It adopts a flexible sleeve and auxiliary belt design, including a fixing part and a connecting part. It uses a tightening part to achieve quick connection, and the auxiliary belt facilitates operation, reduces friction, and ensures sealing and stability.
It simplifies the connection process, improves connection efficiency and quality, reduces construction costs and physical exertion, and ensures the accuracy and stability of the connection.
Smart Images

Figure CN224418341U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PE power pipeline technology, and in particular to a buried PE power pipeline for power applications. Background Technology
[0002] PE power conduits are pipes made primarily of polyethylene (PE) through an extrusion molding process, used for laying power cables. They possess many excellent properties, such as strong corrosion resistance, resisting the erosion of acids and alkalis in the soil and extending service life; a smooth inner wall with a low coefficient of friction, reducing resistance during cable laying and minimizing cable wear; and good flexibility, adapting to a certain degree of foundation settlement and bending, and being less prone to breakage. PE power conduits are widely used in urban power grid renovation and new residential area power line laying projects, providing a safe and reliable laying channel for power cables.
[0003] When laying PE power conduits, the trench must first be dug according to the design and the foundation treated. The pipe sections are then placed into the trench, and their position and slope adjusted. Electrofusion fittings are then fitted onto the pipe, and specialized equipment is used to heat the fittings, melting the inner wall and fusing it with the pipe. After connection, the sealing is checked; if there are no problems, the trench is backfilled and compacted in layers.
[0004] The shortcomings of the existing technical solutions mentioned above are as follows: The preparation work before pipe connection is cumbersome, requiring careful cleaning of the pipe ends to remove impurities, oil, etc., and ensuring the connection surface is clean, which consumes considerable time and manpower. While electrofusion connection is relatively simple, it requires precise control of the energizing time and current intensity; improper operation can easily lead to connection failure. Furthermore, failed electrofusion connections cannot be re-electrofused; once failed, they must be cut off and re-fused. These factors combined make the PE power pipe connection process time-consuming and labor-intensive, making it difficult to improve efficiency. Utility Model Content
[0005] This utility model provides a buried PE power pipeline for power use, which can solve the problem of low efficiency of existing PE power pipelines when buried underground.
[0006] A buried PE power pipeline for power use includes a pipeline, one end of which is coaxially fixedly sleeved with an elastic sleeve. The elastic sleeve includes a fixing part that is fixedly disposed around the side of the pipeline and a connecting part that is not directly connected to the end of the pipeline. A tightening member for fixing the connecting part is sleeved on the outside of the pipeline.
[0007] As a further embodiment of this utility model: the connecting part is stacked around the outside of the fixing part.
[0008] As a further embodiment of this utility model: a sealing protrusion is fixedly provided around the end of the pipe away from the elastic sleeve.
[0009] As a further embodiment of this utility model: an auxiliary belt for disengaging the connecting part from the fixed part is fixedly provided on the side of the fixed part.
[0010] As a further embodiment of this utility model: the auxiliary belt is provided in two sets, and the two sets of auxiliary belts are symmetrically arranged on both sides of the fixing part.
[0011] As a further embodiment of this utility model: the end of the auxiliary belt is provided with a drag opening for easy manual dragging by the staff.
[0012] As a further embodiment of this utility model: one end of the pipe is provided with a concave edge, and the other end of the pipe is provided with a convex edge that cooperates with the concave edge.
[0013] As a further embodiment of this utility model: the tightening component includes a clamp that is sleeved on the outside of the pipe.
[0014] As a further embodiment of this utility model, a plastic layer for reducing friction is provided around the outer side of the fixing part.
[0015] As a further embodiment of this utility model, the elastic sleeve is made of silicone.
[0016] The beneficial effects of this utility model are:
[0017] In use, this utility model features an elastic sleeve comprising a fixing part and a connecting part. Connection is straightforward; simply slip the connecting part over the rear end of the adjacent pipe and tighten it with a tightening device. The design of the connecting part overlapping the fixing part reduces transport space requirements and allows workers to quickly flip the connecting part to the side of the adjacent pipe to complete the connection. This simple connection method shortens pipe laying time and reduces construction costs.
[0018] In use, this invention requires the operator to flip the connecting part, while the auxiliary belt is fixed to the side of the fixing part, with a drag port at its end for easy manual pulling. The operator can easily detach the connecting part from the fixing part by simply dragging the auxiliary belt, eliminating the need for strenuous manual flipping. This not only reduces the difficulty of operation and the physical exertion of the operator, but also improves the accuracy and stability of the operation. The symmetrical arrangement of the auxiliary belts on both sides of the fixing part makes the operation more balanced, further improving the efficiency and quality of pipe connection, making the entire connection process smoother and more efficient. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure for removing and storing the flexible sleeve of a buried PE power pipeline for power applications provided by this utility model;
[0020] Figure 2A schematic diagram of a sealing protrusion structure for buried PE power pipelines used in power applications provided by this utility model;
[0021] Figure 3 This utility model provides a structural diagram of the connection of buried PE power pipelines for power applications.
[0022] Figure 4 This utility model provides a schematic diagram of an auxiliary belt structure for buried PE power pipelines used in power applications.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Pipe; 101. Concave edge; 102. Raised edge; 103. Sealing protrusion; 2. Flexible sleeve; 201. Fixing part; 202. Connecting part; 203. Auxiliary belt; 3. Clamp. Detailed Implementation
[0025] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.
[0026] like Figures 1 to 4 As shown in the figure, this utility model provides a buried PE power conduit for electrical applications, including a main body of pipe 1, with an elastic sleeve 2 coaxially fixedly sleeved at one end of pipe 1. The elastic sleeve 2 is preferably made of silicone, which has good elasticity and sealing properties, meeting the connection requirements of pipe 1. Specifically, the elastic sleeve 2 includes a fixing part 201 and a connecting part 202. The fixing part 201 is fixedly arranged around the side of pipe 1, serving a fixing function; while the connecting part 202 is not directly connected to the end of pipe 1, providing operational space for subsequent pipe 1 connections. Figure 1 As shown, a tightening member for fixing the connection part 202 is also fitted onto the outside of pipe 1. When it is necessary to connect two pipes 1, the worker only needs to fit the connection part 202 of one pipe 1 onto the rear end of the other pipe 1, and then tighten it using the tightening member to easily complete the connection of adjacent pipes 1. The tightening member here can be a clamp 3. Of course, other components that can achieve the tightening function are also applicable and all fall within the protection scope of this patent.
[0027] In one specific embodiment, the connecting part 202 is stacked around the outside of the fixing part 201, which can effectively reduce the space occupied by the connecting part 202 during transportation, improve transportation efficiency, and facilitate the operation of workers when connecting the pipes 1. In actual operation, workers only need to connect the two sets of pipes 1 end to end, and then flip the connecting part 202 from the fixing part 201 to the side of the adjacent pipe 1 to complete the connection operation, which greatly simplifies the connection steps and improves work efficiency.
[0028] To further improve the sealing performance of the pipe 1 connection, a sealing protrusion 103 is fixedly provided around the end of the pipe 1 away from the elastic sleeve 2. When the connection part 202 is fitted onto the side wall of the adjacent pipe 1, the sealing protrusion 103 can fit tightly with the clamp 3 to achieve a good sealing effect.
[0029] In another specific embodiment, an auxiliary belt 203 is fixedly provided on the side of the fixing part 201 to drive the connecting part 202 away from the fixing part 201. Two sets of auxiliary belts 203 can be provided, and both sets are symmetrically arranged on both sides of the fixing part 201 to ensure operational stability and convenience. The ends of the auxiliary belts 203 are provided with drag ports (not shown in the figure) for easy manual dragging by the operator. When flipping the connecting part 202, the operator can drag the auxiliary belts 203 on both sides of the fixing part 201, thereby smoothly driving the connecting parts 202 on both sides of the fixing part 201 away from the fixing part 201. This design further improves the efficiency of pipe connection 1.
[0030] Meanwhile, to reduce the friction of the connecting part 202 when sliding along the fixing part 201, a plastic layer is provided around the outer side of the fixing part 201. The plastic layer has good lubrication properties, which can effectively reduce friction, thereby reducing the force required by the operator during operation and making the connection operation easier and less strenuous.
[0031] In another specific embodiment, to further improve the accuracy and stability of pipe 1 docking, one end of pipe 1 is provided with a concave edge 101, while the other end is provided with a convex edge 102 that mates with the concave edge 101. When two pipes 1 are docked, the convex edge 102 and the concave edge 101 can fit tightly together, ensuring more accurate positioning between adjacent pipes 1, effectively avoiding connection problems caused by inaccurate docking, and further improving the reliability and stability of pipe 1 connection.
[0032] Working principle: Since the connecting part 202 is stacked around the outside of the fixing part 201, it occupies little space during transportation and is convenient for operators to operate. During connection, the operator connects the two sets of pipes 1 end to end, and the operator drags the auxiliary belt 203 to smoothly detach the connecting part 202 from the fixing part 201 and flip it to the side of the adjacent pipe 1.
[0033] Next, the connecting part 202 is tightened using a tightening device. During the tightening process, the connecting part 202 gradually comes into close contact with the outer side of the adjacent pipe 1, while the sealing protrusion 103 and the clamp 3 fit tightly together to form a reliable sealing structure. Moreover, the plastic layer surrounding the outer side of the fixing part 201 reduces friction when the connecting part 202 slides along the fixing part 201, reducing the force required for operator operation and making the connection process easier.
[0034] In another embodiment, when pipes 1 are connected, the concave edge 101 at one end of pipe 1 engages with the convex edge 102 at the other end. This design ensures accurate positioning of adjacent pipes 1 during connection, avoids connection deviations, guarantees the straightness and stability of the pipe 1 connection, and further improves the quality of the pipe 1 connection. Through the above series of operations and designs, the buried PE power pipeline 1 achieves efficient, convenient, and reliable connection, meeting the needs of buried power pipeline 1 installation.
[0035] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A buried PE power conduit for power applications, comprising conduit (1), characterized in that, One end of the pipe (1) is coaxially fixedly sleeved with an elastic sleeve (2). The elastic sleeve (2) includes a fixing part (201) fixedly arranged around the side of the pipe (1) and a connecting part (202) not directly connected to the end of the pipe (1). A tightening member for fixing the connecting part (202) is sleeved on the outside of the pipe (1).
2. The buried PE power pipeline for power applications as described in claim 1, characterized in that, The connecting part (202) is stacked around the outside of the fixing part (201).
3. A buried PE power pipeline for power applications as described in claim 1 or 2, characterized in that, A sealing protrusion (103) is fixedly arranged around the end of the pipe (1) away from the elastic sleeve (2).
4. A buried PE power pipeline for power applications as described in claim 2, characterized in that, An auxiliary belt (203) for disengaging from the fixed part (201) along the drive connection part (202) is fixedly provided on the side of the fixed part (201).
5. A buried PE power pipeline for power applications as described in claim 4, characterized in that, The auxiliary belt (203) is provided in two sets, and the two sets of auxiliary belts (203) are symmetrically arranged on both sides of the fixing part (201).
6. A buried PE power conduit for power applications as described in claim 4 or 5, characterized in that, The auxiliary belt (203) is provided with a drag opening at its end for easy manual dragging by staff.
7. A buried PE power pipeline for power applications as described in claim 1, characterized in that, One end of the pipe (1) is provided with a concave edge (101), and the other end of the pipe (1) is provided with a convex edge (102) that cooperates with the concave edge (101).
8. A buried PE power conduit for power applications as described in claim 3, characterized in that, The tightening component includes a clamp (3) that is fitted onto the outside of the pipe (1).
9. A buried PE power conduit for power applications as described in claim 6, characterized in that, The fixing part (201) is surrounded by a plastic layer for reducing friction.
10. A buried PE power conduit for power applications as described in claim 1, characterized in that, The elastic sleeve (2) is made of silicone.