A double high-rib reinforced polyethylene winding pipe

Abstract

The present invention belongs to the technical field of polyethylene wound pipes, and in particular relates to a double-high-rib reinforced polyethylene wound pipe, comprising a pipe body, one end of the pipe body being connected to a connecting sleeve, and the inner diameter of the connecting sleeve gradually decreases in the direction away from the pipe body, and the inner wall of the other end of the pipe body is provided with an annular conical protrusion, and the inner diameter of the conical protrusion gradually decreases in the direction approaching the connecting sleeve. The present invention realizes the rapid hot-melt welding operation of two polyethylene wound pipes by pre-embedding a heating wire in the pipe body. Compared with the existing hot-melt welding method using hot-melt equipment, the convenience of polyethylene wound pipe welding is improved. In addition, during the welding process, the end of the pipe body is squeezed by the extrusion cylinder, so that the end of the pipe body can present a conical cylindrical shape with the same shape as the conical protrusion, so that it is firmly clamped in the conical cylindrical inner wall of the connecting sleeve, thereby achieving a stable connection between the two polyethylene wound pipes.

Description

Technical Field

[0001] The invention belongs to the technical field of polyethylene winding pipes, and in particular relates to a double high-rib reinforced polyethylene winding pipe. Background Art

[0002] Double-ribbed reinforced polyethylene spiral pipe is a high-performance plastic pipe made primarily of polyethylene (PE) through a unique structural design and manufacturing process. It is a type of structural wall pipe. Its core feature is the incorporation of two layers of high-strength ribs between the inner and outer walls, significantly enhancing the pipe's hoop stiffness (ability to withstand external pressure) and overall mechanical properties. It is suitable for applications in municipal drainage, sewage networks, power and telecommunications, and other fields.

[0003] Existing polyethylene spiral pipe connections are typically made through splicing, hot-melt welding, or clamp connections. Hot-melt welding is often used for pipe connections where tight sealing is a critical requirement. However, for larger diameter pipes, the large hot-melt equipment required makes hot-melt welding inconvenient. Furthermore, after hot-melt welding, uneven heat transfer can occur at the weld, leading to loosening and compromising the stability of the pipe connection.

[0004] Therefore, it is necessary to invent a double high-rib reinforced polyethylene winding pipe to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a double high-rib reinforced polyethylene winding pipe to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a double-high-rib reinforced polyethylene winding pipe, comprising a pipe body, one end of the pipe body is connected to a connecting sleeve, and the inner diameter of the connecting sleeve gradually decreases in the direction away from the pipe body, an annular conical protrusion is provided on the inner wall of the other end of the pipe body, and the inner diameter of the conical protrusion gradually decreases in the direction close to the connecting sleeve, a first heating wire is evenly distributed on the inner wall of the pipe body near the end of the conical protrusion, a wire for energizing the first heating wire is provided on the inner wall of the conical protrusion, an extrusion device for extruding the conical protrusion is provided on the inner side of the conical protrusion, the extrusion device comprises an extrusion cylinder, a fixing assembly and a transmission assembly, the extrusion cylinder is located on the inner side of the conical protrusion, the outer diameter of the extrusion cylinder gradually increases in the direction close to the connecting sleeve, and a notch for placing the wire is provided at the edge position of the extrusion cylinder away from the connecting sleeve, the fixing assembly can cooperate with the transmission assembly to drive the extrusion cylinder to move close to the inner wall of the conical protrusion, thereby realizing the flaring operation of the pipe body away from the connecting sleeve.

[0007] Furthermore, the fixing assembly includes a stop rod, a stop block and a limit column. There are two stop blocks, which are symmetrically fixedly connected to the inner wall of the tube body. The limit column is vertically fixedly connected to the side of the stop block away from the connecting sleeve. The stop rod is provided with sockets matching the diameter of the limit column near both ends, and the two limit columns are slidably inserted into the sockets at both ends of the stop rod.

[0008] Furthermore, the transmission assembly includes a screw, a fixed plate and a nut. The screw is vertically fixedly connected to the side of the baffle rod close to the connecting sleeve. The fixed plate is cross-shaped. The fixed plate is slidably sleeved on the screw, and the fixed plate is fixedly connected to the inner wall of the extrusion cylinder. The nut is threadedly sleeved on the screw, and the thread is located on the side of the fixed plate away from the baffle rod.

[0009] Furthermore, a pressure plate is fixedly connected to one side of the nut close to the fixing plate. The pressure plate is arranged in a circular shape, and the area of ​​the pressure plate is larger than the area of ​​the nut.

[0010] Furthermore, a clamping assembly is provided between the pressure plate and the fixed plate, and the clamping assembly includes a pressure ring, a positioning rod, a compression spring and a fixing ring. The pressure ring is arranged in parallel between the fixing plate and the pressure plate. There are multiple positioning rods, and the multiple positioning rods are vertically fixedly connected to the side of the pressure ring away from the pressure plate, and the positioning rod slides through and is inserted into the fixing plate. The compression spring is sleeved on the positioning rod, and the two ends of the compression spring are respectively fixedly connected to the pressure ring and the fixing plate, and the fixing ring is fixedly connected between the ends of the multiple positioning rods away from the pressure ring.

[0011] Furthermore, a rotating ring is rotatably connected to a side of the pressure ring close to the pressure plate, and the outer diameter of the rotating ring is smaller than the diameter of the pressure plate.

[0012] Furthermore, the end of the conical protrusion away from the connecting sleeve is flush with the end of the tube body away from the connecting sleeve, and the end of the conical protrusion away from the connecting sleeve is fixedly connected to a clamping ring made of the same material as the tube body, and the outer side of the free end of the clamping ring protrudes in a direction away from the axis of the tube body. An annular groove matching the protruding part of the clamping ring is provided on the inner wall of the tube body close to the end of the connecting sleeve, and a second heating wire is provided inside the protruding part of the clamping ring, and the second heating wire is electrically connected to the first heating wire and the wire.

[0013] Furthermore, the inner edge of the free end of the clamping ring is fixedly connected to a guide ring made of the same material, and the diameter of the guide ring gradually decreases towards the clamping ring. In the initial state, the diameter of the free end of the guide ring, the outer diameter of the protruding part of the free end of the clamping ring, and the inner diameter of the tube body are all the same.

[0014] Furthermore, the minimum inner diameter of the connecting sleeve matches the inner diameter of the tube body, and a plurality of annular protrusions are evenly arranged on the inner wall of the connecting sleeve.

[0015] Furthermore, a plurality of metal sheets are evenly distributed in an annular shape on the inner wall of the conical protrusion, and the plurality of metal sheets are all located on the axial section of the conical protrusion.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention achieves rapid hot-melt welding of two polyethylene spiral wound pipes by pre-embedding a heating wire in the pipe body. Compared with the existing hot-melt welding method using hot-melt equipment, the present invention improves the convenience of polyethylene spiral wound pipe welding. In addition, during the welding process, the extrusion cylinder squeezes the end of the pipe body, so that the end of the pipe body can present a conical cylindrical shape with the same shape as the conical surface protrusion, thereby firmly clamping it in the conical cylindrical inner wall of the connecting sleeve, thereby achieving a stable connection between the two polyethylene spiral wound pipes.

[0018] 2. The present invention is provided with a pressing assembly. During the process of the extrusion cylinder squeezing the conical protrusion, the pressing spring can always exert pressure on the extrusion cylinder, so that the extrusion cylinder can always be in close contact with the conical protrusion. The squeezing force of the extrusion cylinder on the conical protrusion makes the surface of the tube body and the inner wall of the connecting sleeve always in close contact during the cooling process, thereby avoiding separation of the surface of the tube body and the inner wall of the connecting sleeve due to thermal expansion and cooling, and ensuring the firmness of the connection between the connecting sleeve and the tube body.

[0019] 3. The present invention is provided with a clamping ring. As the extruded end of the tube body begins to expand in a direction away from the axis of the tube body, the protruding portion of the clamping ring can gradually be clamped into the annular groove along with the expanded end of the tube body. As the second heating wire heats the protruding portion of the clamping ring, the protruding portion of the clamping ring can gradually melt in the annular groove. When the melted portion of the clamping ring is completely cooled in the annular groove, the melted portion of the clamping ring can cooperate with the annular groove to make the two connected tubes more tightly connected, thereby improving the stability of the connection between the two tubes. In addition, the melted portion of the clamping ring can cooperate with the annular groove to improve the airtightness of the connection between the two tubes.

[0020] 4. The present invention is provided with a guide ring. When the clamping ring gradually fits into the annular groove as the end of the tube body expands, the guide ring can also be driven by the clamping ring to gradually fit tightly against the inner wall of the tube body. Therefore, in subsequent use, the guide ring can be smoothly connected between the clamping ring and the inner wall of the tube body, thereby guiding the water flow and impurities in the water flow flowing through the tube body, and avoiding the accumulation of impurities in the water flow at the connection between the two tube bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the connection of two polyethylene winding pipes in the present invention;

[0022] Figure 2 In the present invention Figure 1 A three-dimensional cross-sectional view of

[0023] Figure 3 In the present invention Figure 2 A magnified view of part A;

[0024] Figure 4 In the present invention Figure 2 A magnified view of part B;

[0025] Figure 5 It is a three-dimensional schematic diagram of the pipe body, connecting sleeve, guide ring and metal sheet in the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the extrusion device in the present invention;

[0027] Figure 7 It is a three-dimensional schematic diagram of the screw, pressing plate and pressing assembly in the present invention;

[0028] Figure 8 It is a three-dimensional cross-sectional view of the pressure plate, rotating ring and pressing assembly in the present invention.

[0029] In the figure: 1. Tube body; 2. Connecting sleeve; 3. Conical protrusion; 4. First heating wire; 5. Wire; 6. Extrusion cylinder; 7. Notch; 8. Stop rod; 9. Block; 10. Limiting column; 11. Screw; 12. Fixing plate; 13. Nut; 14. Pressing plate; 15. Pressing ring; 16. Positioning rod; 17. Compression spring; 18. Fixing ring; 19. Swivel; 20. Snap ring; 21. Annular groove; 22. Second heating wire; 23. Guide ring; 24. Annular protrusion; 25. Metal sheet. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] The present invention provides Figures 1 to 8The double-high-rib reinforced polyethylene winding pipe shown in the figure includes a pipe body 1, which includes an outer pipe and an inner pipe. The surface of the outer pipe is evenly sleeved with a number of annular reinforcing ribs, and the reinforcing ribs are a double-layer structure. The inner pipe is made of smooth and corrosion-resistant polyethylene material. One end of the pipe body 1 is connected to a connecting sleeve 2, and the inner diameter of the connecting sleeve 2 gradually decreases away from the pipe body 1. An annular conical protrusion 3 is provided on the inner wall of the other end of the pipe body 1, and the inner diameter of the conical protrusion 3 gradually decreases towards the connecting sleeve 2. A first heating wire 4 is evenly distributed on the inner wall of the pipe body 1 near the end of the conical protrusion 3. A wire 5 for energizing the first heating wire 4 is provided on the inner wall of the protrusion 3, and an extrusion device for extruding the conical protrusion 3 is provided on the inner side of the conical protrusion 3. The extrusion device includes an extrusion cylinder 6, a fixing component and a transmission component. The extrusion cylinder 6 is located on the inner side of the conical protrusion 3, and the outer diameter of the extrusion cylinder 6 gradually increases in the direction close to the connecting sleeve 2, and a notch 7 for placing the wire 5 is provided at the edge position of the extrusion cylinder 6 away from the connecting sleeve 2. The fixing component can cooperate with the transmission component to drive the extrusion cylinder 6 to move close to the inner wall of the conical protrusion 3, thereby realizing the expansion operation of the end of the tube body 1 away from the connecting sleeve 2;

[0032] The fixing assembly includes a stopper 8, a stopper 9 and a limit column 10. There are two stoppers 9, which are symmetrically fixed to the inner wall of the tube body 1. The limit column 10 is vertically fixed to the side of the stopper 9 away from the connecting sleeve 2. The position near both ends of the stopper 8 is provided with a socket matching the diameter of the limit column 10, and the two limit columns 10 are slidably inserted into the sockets at both ends of the stopper 8.

[0033] The transmission assembly includes a screw 11, a fixing plate 12 and a nut 13. The screw 11 is vertically fixedly connected to the side of the stop rod 8 close to the connecting sleeve 2. The fixing plate 12 is cross-shaped and is slidably sleeved on the screw 11. The fixing plate 12 is fixedly connected to the inner wall of the extrusion cylinder 6. The nut 13 is threadedly sleeved on the screw 11, and the thread is located on the side of the fixing plate 12 away from the stop rod 8.

[0034] When connecting two large-diameter polyethylene winding tubes, the end of the tube body 1 of one polyethylene winding tube away from the connecting sleeve 2 is inserted into the connecting sleeve 2 of the other polyethylene winding tube. When the two polyethylene winding tubes are completely plugged together, the operator brings the extrusion cylinder 6 into the connection of the two polyethylene winding tubes and inserts the extrusion cylinder 6 into the conical protrusion 3 at the connection of the two polyethylene winding tubes. At the same time, the wire 5 is inserted into the notch 7 of the extrusion cylinder 6. Then the stop rod 8 is taken out, and the sockets at both ends are respectively inserted into the limit columns 10 near the connection of the two polyethylene winding tubes, and the screw 11 on the stop rod 8 passes through the fixing plate 12. Then the nut 13 is put on the screw 11 and the nut 13 is tightened together with the fixing plate 12. Then the power supply is connected to the wire 5, so that the first heating wire 4 evenly distributed at the end of the tube body 1 can evenly heat the end of the tube body 1 under the power supply of the power supply. As the first heating wire 4 continuously heats the end of the tube body 1 The end of the tube body 1 is heated and softened. As the extrusion cylinder 6 squeezes the conical protrusion 3, the end of the tube body 1 can expand toward the inner wall of the connecting sleeve 2. As the end of the tube body 1 continues to expand, when the melted part of the end of the tube body 1 contacts the inner wall of the connecting sleeve 2 and is gradually pressed, the power is disconnected. At this time, the end of the tube body 1 begins to gradually cool down. During this process, the nut 13 is tightened, so that it generates a thrust on the extrusion cylinder 6 through the fixing plate 12, and the extrusion cylinder 6 can apply an expansion force to the end of the tube body 1 through the conical protrusion 3. After the melted part of the end of the tube body 1 is completely cooled, the end of the tube body 1 can present a conical shape with the same shape as the conical protrusion 3, so that it is firmly clamped in the conical inner wall of the connecting sleeve 2, thereby achieving a stable connection between the two polyethylene winding tubes.

[0035] In addition, compared with the existing hot melt welding method using hot melt equipment, the present invention realizes the rapid hot melt welding operation of two polyethylene winding pipes by pre-embedding the heating wire in the pipe body 1, thereby improving the convenience during welding;

[0036] After the two polyethylene winding pipes are welded, the nut 13 can be unscrewed from the screw 11, thereby removing the extrusion cylinder 6 and the blocking rod 8, and preparing for the welding operation of the next section of polyethylene winding pipe.

[0037] like Figures 6 to 8As shown, a pressure plate 14 is fixedly connected to one side of the nut 13 near the fixing plate 12. The pressure plate 14 is circular and the area of ​​the pressure plate 14 is larger than the area of ​​the nut 13. A clamping assembly is provided between the pressure plate 14 and the fixing plate 12. The clamping assembly includes a pressure ring 15, a positioning rod 16, a compression spring 17 and a fixing ring 18. The pressure ring 15 is arranged parallel to the fixing plate 12 and the pressure plate 14. The number of the positioning rods 16 is multiple, and the multiple positioning rods 16 are all vertically fixedly connected to the side of the pressure ring 15 away from the pressure plate 14, and the positioning rod 16 slides through and is inserted into the fixing plate 12. The compression spring 17 is sleeved on the positioning rod 16, and the two ends of the compression spring 17 are respectively fixedly connected to the pressure ring 15 and the fixing plate 12. The fixing ring 18 is fixedly connected between one end of the multiple positioning rods 16 away from the pressure ring 15. The side of the pressure ring 15 close to the pressure plate 14 is rotatably connected to a swivel 19, and the outer diameter of the swivel 19 is smaller than the diameter of the pressure plate 14.

[0038] The pressure plate 14 is provided to increase the contact area between the nut 13 and the fixing plate 12, thereby reducing the pressure of the nut 13 on the fixing plate 12 when tightening the nut 13, thereby preventing the fixing plate 12 from being deformed or damaged.

[0039] By providing a clamping assembly, when the nut 13 is screwed onto the screw rod 11, as the nut 13 is gradually tightened, the nut 13 can press the pressure ring 15 through the pressure plate 14, so that the positioning rod 16 moves in the direction away from the pressure plate 14 under the pressure of the pressure ring 15. In this process, the compression spring 17 is gradually compressed, and the force of the compression spring 17 on the fixed plate 12 can drive the extrusion cylinder 6 to move in the direction close to the stop rod 8 through the fixed plate 12, so that the end of the tube body 1 can be expanded toward the inner wall of the connecting sleeve 2 through the extrusion cylinder 6 on the conical protrusion 3.

[0040] In addition, during the process of the extrusion cylinder 6 squeezing the conical protrusion 3, since the clamping spring 17 is always in a compressed state, when the extrusion cylinder 6 cooperates with the conical protrusion 3 to completely fit together with the inner wall of the connecting sleeve 2 at the end of the tube body 1, as the surface of the melted tube body 1 gradually cools down, the clamping spring 17 can always apply pressure to the extrusion cylinder 6, so that the extrusion cylinder 6 can always fit tightly together with the conical protrusion 3, and through the extrusion force of the extrusion cylinder 6 on the conical protrusion 3, the surface of the tube body 1 and the inner wall of the connecting sleeve 2 during the cooling process are always fit together, avoiding the separation of the surface of the tube body 1 and the inner wall of the connecting sleeve 2 due to thermal expansion and cooling, thereby ensuring the firmness of the connection between the connecting sleeve 2 and the tube body 1.

[0041] like Figures 2 to 4As shown, the end of the conical protrusion 3 away from the connecting sleeve 2 is flush with the end of the tube body 1 away from the connecting sleeve 2, and the end of the conical protrusion 3 away from the connecting sleeve 2 is fixedly connected to a clamping ring 20 made of the same material as the tube body 1, and the outer side of the free end of the clamping ring 20 protrudes in a direction away from the axis of the tube body 1. An annular clamping groove 21 matching the protruding part of the clamping ring 20 is provided on the inner wall of the tube body 1 near the end of the connecting sleeve 2, and a second heating wire 22 is provided inside the protruding part of the clamping ring 20, and the second heating wire 22 is electrically connected to the first heating wire 4 and the wire 5;

[0042] By providing a clamping ring 20, when the end of the tube body 1 away from the connecting sleeve 2 is inserted into the connecting sleeve 2 of the other tube body 1, as the conical protrusion 3 is squeezed by the extrusion cylinder 6, the squeezed end of the tube body 1 begins to expand in the direction away from the axis of the tube body 1, and as the end of the tube body 1 is gradually expanded, the clamping ring 20 can expand together with the expanded end of the tube body 1 in the direction close to the annular groove 21, so that the protruding part of the clamping ring 20 can gradually be stuck into the annular groove 21. At the same time, due to the presence of the second heating wire 22, the second heating wire 22 can heat the protruding part of the clamping ring 20, so that it gradually melts in the annular groove 21, and when the melted part of the clamping ring 20 is completely cooled in the annular groove 21, the melted part of the clamping ring 20 can cooperate with the annular groove 21 so that the two connected tube bodies 1 can be more tightly connected together, thereby improving the stability of the connection between the two tube bodies 1, and the melted part of the clamping ring 20 can also cooperate with the annular groove 21 to improve the airtightness of the connection between the two tube bodies 1.

[0043] like Figures 2 to 5 As shown, the inner edge of the free end of the clasp 20 is fixedly connected to a guide ring 23 made of the same material as the clasp 20. The diameter of the guide ring 23 gradually decreases towards the clasp 20. In the initial state, the diameter of the free end of the guide ring 23, the outer diameter of the protruding portion of the free end of the clasp 20, and the inner diameter of the tube body 1 are all the same.

[0044] By providing the guide ring 23, when the clamping ring 20 gradually fits into the annular clamping groove 21 as the end of the tube body 1 expands, the guide ring 23 can also be driven by the clamping ring 20 to gradually fit tightly against the inner wall of the tube body 1. Therefore, in subsequent use, the guide ring 23 can be smoothly connected between the clamping ring 20 and the inner wall of the tube body 1, thereby guiding the water flow passing through the tube body 1 and impurities (mud, sand, debris, etc.) in the water flow, thereby preventing impurities in the water flow from accumulating at the connection between the two tube bodies 1.

[0045] like Figures 2 to 3 As shown, the minimum inner diameter of the connecting sleeve 2 matches the inner diameter of the pipe body 1, and a plurality of annular protrusions 24 are evenly arranged on the inner wall of the connecting sleeve 2;

[0046] By providing the annular protrusion 24, when the end of the tube body 1 is heated and melted by the first heating wire 4, as the extrusion cylinder 6 cooperates with the conical protrusion 3 to apply an expansion force to the end of the tube body 1, the surface of the melted tube body 1 can be gradually expanded. When the melted surface of the tube body 1 contacts the inner wall of the connecting sleeve 2, the annular protrusion 24 can increase the contact area between the inner wall of the connecting sleeve 2 and the surface of the tube body 1, thereby improving the stability of the connection between the tube body 1 and the connecting sleeve 2.

[0047] In addition, the annular protrusions 24 can also press out a series of convex rings similar to sealing rings on the surface of the molten tube body 1, so that when the surface of the melted tube body 1 is completely cooled, the convex rings can play the role of sealing rings, thereby improving the sealing between the connecting sleeve 2 and the tube body 1.

[0048] like Figure 2 and Figure 5 As shown, a number of metal sheets 25 are evenly distributed in an annular shape on the inner wall of the conical protrusion 3, and the plurality of metal sheets 25 are all located on the axial section of the conical protrusion 3;

[0049] By arranging metal sheets 25 on the inner wall of the conical protrusion 3, when the conical protrusion 3 is extruded by the extrusion cylinder 6, multiple metal sheets 25 can be evenly distributed between the outside of the extrusion cylinder 6 and the conical protrusion 3, so that there are many narrow gaps between the extrusion cylinder 6 and the conical protrusion 3, thereby reducing the contact area between the extrusion cylinder 6 and the conical protrusion 3, and reducing the friction force encountered by the extrusion cylinder 6 when extruding the conical protrusion 3.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A double high-rib reinforced polyethylene winding pipe, comprising a pipe body (1), characterized in that: One end of the tube body (1) is connected to a connecting sleeve (2), and the inner diameter of the connecting sleeve (2) gradually decreases in a direction away from the tube body (1); an annular conical protrusion (3) is provided on the inner wall of the other end of the tube body (1), and the inner diameter of the conical protrusion (3) gradually decreases in a direction close to the connecting sleeve (2); a first heating wire (4) is evenly distributed on the inner wall of the tube body (1) near the conical protrusion (3); a wire (5) for energizing the first heating wire (4) is provided on the inner wall of the conical protrusion (3); and a conductive wire (6) for energizing the first heating wire (4) is provided on the inner side of the conical protrusion (3). 3) an extrusion device for performing extrusion, the extrusion device comprising an extrusion cylinder (6), a fixing assembly and a transmission assembly, the extrusion cylinder (6) being located on the inner side of the conical protrusion (3), the outer diameter of the extrusion cylinder (6) gradually increasing in a direction approaching the connecting sleeve (2), and a notch (7) for placing the wire (5) being provided at an edge position of the extrusion cylinder (6) away from the connecting sleeve (2), the fixing assembly being able to cooperate with the transmission assembly to drive the extrusion cylinder (6) to move close to the inner wall of the conical protrusion (3), thereby realizing an expansion operation on the end of the tube body (1) away from the connecting sleeve (2); The fixing assembly includes a stopper rod (8), a stopper block (9) and a limiting column (10), wherein the number of the stopper blocks (9) is two, and the two stopper blocks (9) are symmetrically fixedly connected to the inner wall of the tube body (1), and the limiting column (10) is vertically fixedly connected to the side of the stopper block (9) away from the connecting sleeve (2), and the positions near both ends of the stopper rod (8) are provided with sockets matching the diameter of the limiting column (10), and the two limiting columns (10) are respectively slidably inserted into the sockets at the two ends of the stopper rod (8); The transmission assembly includes a screw (11), a fixing plate (12) and a nut (13), wherein the screw (11) is vertically fixedly connected to a side of the stop rod (8) close to the connecting sleeve (2), the fixing plate (12) is cross-shaped, the fixing plate (12) is slidably sleeved on the screw (11), and the fixing plate (12) is fixedly connected to the inner wall of the extrusion cylinder (6), and the nut (13) is threadedly sleeved on the screw (11), and the thread is located on a side of the fixing plate (12) away from the stop rod (8); The end of the conical protrusion (3) away from the connecting sleeve (2) is flush with the end of the tube body (1) away from the connecting sleeve (2), and the end of the conical protrusion (3) away from the connecting sleeve (2) is fixedly connected to a clamping ring (20) made of the same material as the tube body (1), the outer side of the free end of the clamping ring (20) protrudes in a direction away from the axis of the tube body (1), and an annular clamping groove (21) matching the protruding portion of the clamping ring (20) is provided on the inner wall of the tube body (1) near the end of the connecting sleeve (2), and a second heating wire (22) is provided inside the protruding portion of the clamping ring (20), and the second heating wire (22) is electrically connected to the first heating wire (4) and the wire (5), and the protruding portion of the clamping ring (20) can be clamped into the annular clamping groove (21) under the extrusion action of the extrusion cylinder (6) and heated and melted by the second heating wire (22).

2. The double high-rib reinforced polyethylene winding pipe according to claim 1, characterized in that: A pressure plate (14) is fixedly connected to one side of the nut (13) close to the fixing plate (12); the pressure plate (14) is arranged in a circular shape, and the area of ​​the pressure plate (14) is larger than the area of ​​the nut (13).

3. The double high-rib reinforced polyethylene winding pipe according to claim 2, characterized in that: A clamping assembly is provided between the pressure plate (14) and the fixed plate (12), and the clamping assembly includes a pressure ring (15), a positioning rod (16), a clamping spring (17) and a fixed ring (18). The pressure ring (15) is provided in parallel between the fixed plate (12) and the pressure plate (14). There are multiple positioning rods (16), and the multiple positioning rods (16) are vertically fixedly connected to the side of the pressure ring (15) away from the pressure plate (14), and the positioning rod (16) is slidably inserted into the fixed plate (12). The clamping spring (17) is sleeved on the positioning rod (16), and the two ends of the clamping spring (17) are respectively fixedly connected to the pressure ring (15) and the fixed plate (12). The fixed ring (18) is fixedly connected between the ends of the multiple positioning rods (16) away from the pressure ring (15).

4. The double high-rib reinforced polyethylene winding pipe according to claim 3, characterized in that: The pressure ring (15) is rotatably connected to a rotating ring (19) on one side close to the pressure plate (14), and the outer diameter of the rotating ring (19) is smaller than the diameter of the pressure plate (14).

5. The double high-rib reinforced polyethylene winding pipe according to claim 4, characterized in that: The inner edge of the free end of the clamping ring (20) is fixedly connected to a guide ring (23) made of the same material as the free end of the clamping ring (20). The diameter of the guide ring (23) gradually decreases in the direction approaching the clamping ring (20). In the initial state, the diameter of the free end of the guide ring (23), the outer diameter of the protruding portion of the free end of the clamping ring (20), and the inner diameter of the tube body (1) are all the same.

6. The double high-rib reinforced polyethylene winding pipe according to claim 5, characterized in that: The minimum inner diameter of the connecting sleeve (2) matches the inner diameter of the pipe body (1), and a plurality of annular protrusions (24) are evenly arranged on the inner wall of the connecting sleeve (2).

7. The double-high-rib reinforced polyethylene winding pipe according to claim 6, characterized in that: A plurality of metal sheets (25) are evenly distributed in an annular pattern on the inner wall of the conical protrusion (3), and the plurality of metal sheets (25) are all located on the axial section of the conical protrusion (3).

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