Pipe with polyethylene blended polyvinyl chloride structural wall

Abstract

The utility model relates to the technical field of pipes, in particular to a pipe with a polyethylene blended polyvinyl chloride structural wall. According to the technical scheme, the pipe comprises a pipe body, a first clamp and a second clamp, an insertion pipe and a flared pipe are arranged at the two ends of the pipe body respectively, a first annular groove is formed in the inner wall of the insertion pipe, a supporting circular ring is arranged in the first annular groove, and a second annular groove is formed in the inner wall of the flared pipe. A sealing ring is arranged in the second annular groove, through holes are formed in the positions, close to the two ends, of the upper surface of the first clamp, screw rods are movably inserted into the two through holes, nuts are fixedly installed at the positions, close to the two ends, of the lower surface of the second clamp, and the two screw rods penetrate through the two nuts correspondingly. According to the utility model, the sealing performance and the stability of the polyethylene blended polyvinyl chloride structural wall pipe main body after connection can be improved, so that the leakage phenomenon at the joint is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipe technology, specifically to a pipe with a polyethylene-polyvinyl chloride blended structural wall. Background Technology

[0002] Polyethylene-PVC blended structural wall pipe is a new type of pipe made from a blend of polyethylene (PE) and polyvinyl chloride (PVC). This pipe combines the toughness of polyethylene with the rigidity of PVC, making up for the deficiencies of insufficient rigidity in polyethylene corrugated pipe and poor toughness in PVC corrugated pipe. It has advantages such as high strength, good impact resistance, corrosion resistance, durability, weather resistance, creep resistance, safety, economy, seismic resistance, fire resistance, aging resistance, system sealing, ultra-smooth inner wall, low coefficient of friction, and convenient installation and maintenance.

[0003] The current polyethylene-polyvinyl chloride (PVC) blended structural wall pipes have a relatively complex connection structure when connected, and the sealing performance after connection is poor, which can lead to leakage. Therefore, we propose a polyethylene-polyvinyl chloride (PVC) blended structural wall pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe with a polyethylene-polyvinyl chloride (PVC) structural wall, which has the advantage of improving the sealing and stability of the PVC-PVC structural wall pipe body after connection, so as to avoid leakage at the connection. It solves the problem that the connection structure of the current PVC-PVC structural wall pipe body is relatively complex and the sealing performance after connection is poor, which leads to leakage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe with a polyethylene-polyvinyl chloride (PVC) structural wall, comprising a pipe body, a first clamp, and a second clamp. The pipe body has an insert and a flared end respectively at both ends. The insert has a first annular groove on its inner wall, and a supporting ring inside the first annular groove. The flared end has a second annular groove on its inner wall, and a sealing ring inside the second annular groove. The first clamp has through holes near both ends on its upper surface, and screws are movably inserted into both through holes. Nuts are fixedly installed near both ends on the lower surface of the second clamp, and the two screws pass through the two nuts respectively.

[0006] Preferably, the outer surface of the pipe body is provided with spiral protrusions, which form a spiral structural wall on the outer surface of the pipe body to improve the strength of the pipe body.

[0007] Preferably, the outer surface of the insertion tube is provided with a first annular protrusion at the position of the first annular groove. After the two tube bodies are connected, the first annular protrusion can be inserted into the second annular groove and squeeze the sealing ring inside the second annular groove, thereby further improving the sealing and stability of the tube body connection.

[0008] Preferably, the inner walls of the first clamp and the second clamp are provided with limiting grooves, and the outer surface of the flared tube is provided with a second annular protrusion at the position of the second annular groove. The second annular protrusion is located inside the limiting groove. After the second annular protrusion is inserted into the limiting groove, it can limit the first clamp and the second clamp on the flared tube to prevent the first clamp and the second clamp from slipping off the flared tube.

[0009] Preferably, each of the two screws has a pin hole near its end on its outer surface, and a pin is movably inserted into each of the two pin holes. The pin inside the pin hole serves to restrict the screw and nut from separating, thereby preventing the first clamp and the second clamp from separating, which facilitates the matching use of the first clamp and the second clamp.

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

[0011] 1. This utility model, by setting up a pipe body, insert, flared pipe, first annular groove, supporting ring, second annular groove, sealing ring, first clamp, second clamp, nut, and screw, achieves the effect of improving the sealing and stability of the polyethylene-polyvinyl chloride structural wall pipe body after connection, thus avoiding leakage at the connection. When the two pipe bodies are connected, the insert is inserted into the flared pipe. The first clamp and the second clamp are connected by the screw and nut to form a fixing ring, which is sleeved on the outer surface of the flared pipe. The flared pipe, sealing ring, and insert are located between the supporting ring and the fixing ring, and the sealing ring between the flared pipe and the insert plays a sealing role between the flared pipe and the insert after being compressed.

[0012] 2. By setting a first annular protrusion, after the two pipe bodies are connected, the first annular protrusion can be inserted into the second annular groove and squeeze the sealing ring inside the second annular groove, thereby further improving the sealing and stability of the pipe body connection.

[0013] 3. By setting a second annular protrusion and a limiting groove, the second annular protrusion can limit the first and second clamps on the flared tube after being inserted into the limiting groove, so as to prevent the first and second clamps from slipping off the flared tube. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a partial three-dimensional structural diagram of the first and second clamps of this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the main body of the pipe of this utility model;

[0017] Figure 4 This is a schematic diagram of the main cross-sectional structure of this utility model.

[0018] Reference numerals in the attached drawings: 1. Pipe body; 2. Spiral protrusion; 3. First clamp; 4. Second clamp; 5. Limiting groove; 6. Screw; 7. Through hole; 8. Nut; 9. Pin; 10. Pin hole; 11. First annular groove; 12. Supporting ring; 13. Insert tube; 14. First annular protrusion; 15. Flared tube; 16. Second annular protrusion; 17. Second annular groove; 18. Sealing ring. Detailed Implementation

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] like Figure 1-Figure 4As shown, this utility model proposes a pipe with a polyethylene-polyvinyl chloride (PVC) blended structural wall, comprising a pipe body 1, a first clamp 3, and a second clamp 4. The pipe body 1 is made of polyethylene (PE) and polyvinyl chloride (PVC) blended together. The outer surface of the pipe body 1 is provided with spiral protrusions 2, which form a spiral structural wall on the outer surface of the pipe body 1 to improve the strength of the pipe body 1. A insertion tube 13 and a flared tube 15 are respectively provided at both ends of the pipe body 1. The outer diameter of the insertion tube 13 is less than or equal to the inner diameter of the flared tube 15. When the two pipe bodies 1 are connected, the insertion tube 13 is inserted into the flared tube 15. The inner wall of the insertion tube 13 is provided with a first annular groove 11, and a supporting ring 12 is provided inside the first annular groove 11. The inner wall of the flared tube 15 is provided with a second annular groove 17. A sealing ring 18 is provided inside the groove 17. A through hole 7 is provided on the upper surface of the first clamp 3 near both ends. A screw 6 is movably inserted into each of the two through holes 7. Nuts 8 are fixedly installed on the lower surface of the second clamp 4 near both ends, and the two screws 6 pass through the two nuts 8 respectively. The first clamp 3 and the second clamp 4 are semi-circular rings. The first clamp 3 and the second clamp 4 form a fixed ring by connecting the screws 6 and nuts 8, and are fitted onto the outer surface of the flared tube 15. A pin hole 10 is provided on the outer surface of the two screws 6 near the end, and a pin 9 is movably inserted into each of the two pin holes 10. The pins 9 inside the pin holes 10 play a restrictive role to prevent the screws 6 and nuts 8 from separating, thereby preventing the first clamp 3 and the second clamp 4 from separating, which facilitates the matching use of the first clamp 3 and the second clamp 4.

[0022] In this embodiment, when the two pipe bodies 1 are connected, the insert 13 is inserted into the flared pipe 15. The first clamp 3 and the second clamp 4 are connected by the screw 6 and the nut 8 to form a fixed ring, which is then fitted onto the outer surface of the flared pipe 15. The flared pipe 15, the sealing ring 18 and the insert 13 are located between the supporting ring 12 and the fixed ring. The sealing ring 18 between the flared pipe 15 and the insert 13 plays a sealing role between the flared pipe 15 and the insert 13 after being compressed, thus completing the connection between the pipe bodies 1.

[0023] Example 2

[0024] like Figure 1-Figure 4 As shown, the present invention proposes a polyethylene-polyvinyl chloride-structured pipe. Compared with Embodiment 1, this embodiment further includes a first annular protrusion 14 on the outer surface of the insertion tube 13 at the position 11 of the first annular groove, a limiting groove 5 on the inner wall of the first clamp 3 and the second clamp 4, and a second annular protrusion 16 on the outer surface of the flared tube 15 at the position 17 of the second annular groove, and the second annular protrusion 16 is located inside the limiting groove 5.

[0025] In this embodiment, after the two pipe bodies 1 are connected, the first annular protrusion 14 can be inserted into the second annular groove 17 and squeeze the sealing ring 18 inside the second annular groove 17. After the second annular protrusion 16 is inserted into the limiting groove 5, it can limit the first clamp 3 and the second clamp 4 on the flared pipe 15 to prevent the first clamp 3 and the second clamp 4 from slipping off the flared pipe 15, thereby further improving the sealing and stability of the connection of the pipe bodies 1.

[0026] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A pipe with a polyethylene-polyvinyl chloride blended structural wall, comprising a pipe body (1), a first clamp (3), and a second clamp (4), characterized in that: The main body of the pipe (1) is provided with a insertion tube (13) and a flared tube (15) at both ends. The inner wall of the insertion tube (13) is provided with a first annular groove (11), and a supporting ring (12) is provided inside the first annular groove (11). The inner wall of the flared tube (15) is provided with a second annular groove (17), and a sealing ring (18) is provided inside the second annular groove (17). The upper surface of the first clamp (3) is provided with through holes (7) near both ends. Screws (6) are movably inserted into the two through holes (7). Nuts (8) are fixedly installed on the lower surface of the second clamp (4) near both ends, and the two screws (6) pass through the two nuts (8) respectively.

2. The pipe with a polyethylene-polyvinyl chloride blended structural wall according to claim 1, characterized in that: The outer surface of the pipe body (1) is provided with spiral protrusions (2).

3. The pipe with a polyethylene-polyvinyl chloride blended structural wall according to claim 1, characterized in that: The outer surface of the insertion tube (13) is provided with a first annular protrusion (14) at the position of the first annular groove (11).

4. The pipe with a polyethylene-polyvinyl chloride blended structural wall according to claim 1, characterized in that: The inner walls of the first clamp (3) and the second clamp (4) are provided with limiting grooves (5), and the outer surface of the flared tube (15) is provided with a second annular protrusion (16) at the position of the second annular groove (17), and the second annular protrusion (16) is located inside the limiting groove (5).

5. The pipe with a polyethylene-polyvinyl chloride blended structural wall according to claim 1, characterized in that: Both screws (6) have pin holes (10) near their ends on their outer surfaces, and pins (9) are movably inserted into both pin holes (10).

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