Polyolefin plastic steel reinforced winding drainage and blow-off pipe
By setting up connection grooves and connecting blocks on the plastic tape, combined with connecting strips, chucks and anti-detachment strips, the problem of insufficient contact area at the connection of plastic steel reinforced winding drainage and sewage pipes is solved, and the service life of the pipe body is significantly improved. The stability of the steel belt.
Patent Information
- Application Number
- CN202420133975.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-18
AI Technical Summary
During the spiral winding process of existing plastic steel reinforced winding drainage and sewage pipes, the contact area at the plastic tape connection is limited, which can easily lead to cracking of the pipe body under external force, affecting its service life.
Set up a connecting groove and a connecting block on the plastic tape. During the spiral winding process, the connecting block is pressed down into the connecting groove and melted and bonded to increase the contact area; connecting strips, clamping slots and anti-disassembly strips can be selected to enhance the connection strength and tensile resistance; set up convex and unloading ports to improve connection stability and binding force of the steel belt.
It effectively improves the strength and tensile resistance at the pipe body connection, extends the service life, and improves the stability of the steel belt, preventing the steel belt from radially displaced along the pipe body.
Smart Images
Figure CN222163885U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of drainage pipes, and in particular to a polyolefin plastic-steel reinforced winding drainage and sewage pipe. Background Art
[0002] In municipal construction, the laying of underground drainage pipes and sewage pipes is an important municipal project. Commonly used drainage pipes and sewage pipes are concrete pipes and metal pipes. Plastic-steel reinforced winding pipes have strong flexibility, corrosion resistance and wear resistance. In order to improve the strength, corrugated pipes reinforced with steel belts are usually used.
[0003] During the production and processing of the pipeline, the long plastic strip with a steel strip fixed on it needs to be spirally wound through a winding and shaping device to form the shape of the pipe body. During the spiral winding process, both sides of the plastic strip need to be heated to ensure that the two sides of the plastic strip are firmly bonded to each other. However, the contact area of the plastic strips is limited, which leads to the pipe body connection being easily cracked under the action of external forces during installation or use, which affects the service life. Summary of the invention
[0004] In order to increase the service life of the pipe body, the present application provides a polyolefin plastic-steel reinforced wound drainage and sewage pipe.
[0005] The present application provides a polyolefin plastic-steel reinforced winding drainage and sewage pipe, which adopts the following technical solution:
[0006] A polyolefin plastic-steel reinforced wound drainage and sewage pipe comprises a pipe body formed by spirally winding a plastic belt body, a steel belt is fixedly arranged on the plastic belt body, a connecting groove is opened on one side of the plastic belt body along its length direction, the connecting groove penetrates the inner side wall of the plastic belt body, and a connecting block for inserting into the connecting groove is fixedly arranged on the other side of the plastic belt body along its length direction, the connecting block is away from the side wall of the plastic belt body and abuts against the side wall of the connecting groove.
[0007] By adopting the above technical solution, during the process of spirally winding the plastic strip into a tube body, one side of the plastic strip body with the connecting block gradually contacts the other side of the plastic strip body, so that the connecting block is pressed downward into the connecting groove, and the connecting block and the connecting groove are pressed against each other and melt-bonded. The connecting block and the connecting groove increase the contact area on both sides of the plastic strip body, effectively improve the connection strength, and thereby increase the overall service life of the tube body.
[0008] Optionally, a connecting strip is fixedly provided on one side of the plastic belt body away from the connecting groove, the connecting strip is arranged along the length direction of the plastic belt body, one end of the connecting strip is located inside the plastic belt body, and the other end extends out of the plastic belt body and extends to the end of the connecting block.
[0009] By adopting the above technical solution, during the process of spirally winding the plastic strip to form the tube body, the end of the connecting strip located outside the plastic strip body is inserted into the connecting groove, and is fixed together with the connecting block to the other side of the plastic strip body, so that the two ends of the connecting strip are respectively located on both sides of the connection of the tube body, thereby increasing the structural strength and tensile resistance of the connection, and further improving the overall service life of the tube body.
[0010] Optionally, the connecting strip is provided with a plurality of connecting holes at intervals along its length direction.
[0011] By adopting the above technical solution, the molten plastic enters the connecting hole, thereby increasing the friction between the connecting strip and the plastic belt body and improving the tensile strength of the pipe body connection along the axial direction of the pipe body.
[0012] Optionally, both sides of the connecting strip along its length direction are provided with card slots, and a plurality of the card slots are provided along the length direction of the connecting strip.
[0013] By adopting the above technical solution, the molten plastic is filled into the card slot, which effectively increases the contact area between the connecting strip and the plastic belt body, thereby improving the tensile strength of the connection between the tube body.
[0014] Optionally, the slot is configured as a T-slot or a dovetail slot.
[0015] By adopting the above technical solution, the clamping groove is set as a T-shaped groove or a dovetail groove, so as to further improve the tensile strength of the connection of the pipe body.
[0016] Optionally, the tube body is provided with convex ridges at the connection between the two plastic strips.
[0017] By adopting the above technical solution, the welded parts on both sides of the plastic strip body are squeezed against each other to form convex ridges protruding upwards, which effectively increases the contact area of the connection of the tube body and further improves the stability of the connection.
[0018] Optionally, an anti-slip strip is fixedly provided on one side of the steel strip close to the inside of the tube body, and the thickness of the anti-slip strip is greater than the thickness of the steel strip.
[0019] By adopting the above technical solution, the thickness of the anti-slip strip is greater than the thickness of the steel strip, and the anti-slip strip is wrapped in the plastic strip body, thereby increasing the radial restraint force of the steel strip along the tube body, preventing the steel strip from displacing radially along the tube body, and improving the stability of the steel strip.
[0020] Optionally, a force unloading port is provided on one side of the steel belt away from the middle of the tube body, and a plurality of the force unloading ports are arranged at intervals along the length direction of the steel belt.
[0021] By adopting the above technical solution, after the plastic belt body is wound to form a tube body, the deformation of the outer side of the steel belt is greater than that of the inner side, and the setting of the unloading port facilitates the smooth extension of the outer side of the steel belt and prevents the outer side of the steel belt from being stretched and deformed.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. In the process of spirally winding the plastic strip into the tube body, one side of the plastic strip body with the connecting block gradually contacts the other side of the plastic strip body, so that the connecting block is pressed downward into the connecting groove. The connecting block and the connecting groove are pressed against each other and melt-bonded. The connecting block and the connecting groove increase the contact area on both sides of the plastic strip body, effectively improve the connection strength, and thus increase the overall service life of the tube body.
[0024] 2. The molten plastic enters the connecting hole, increasing the friction between the connecting strip and the plastic belt body, and improving the tensile strength of the pipe connection along the axial direction of the pipe body.
[0025] 3. The thickness of the anti-slip strip is greater than that of the steel strip. The anti-slip strip is wrapped in the plastic strip body to increase the radial restraint force of the steel strip along the tube body, prevent the radial displacement of the steel strip along the tube body, and improve the stability of the steel strip. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;
[0027] Figure 2 This is a schematic diagram of the structure of the plastic belt body of the embodiment of the present application;
[0028] Figure 3 This is a schematic diagram of the structure of the steel strip according to the embodiment of the present application;
[0029] Figure 4 It is a schematic diagram of the structure of the connecting strip according to the embodiment of the present application.
[0030] Explanation of the reference numerals: 1. tube body; 11. convex rib; 12. protective layer; 2. plastic belt body; 21. connecting groove; 22. connecting block; 3. steel belt; 31. anti-slip strip; 32. force unloading port; 4. connecting strip; 41. connecting hole; 42. card slot. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-4 This application is described in further detail.
[0032] The embodiment of the present application discloses a polyolefin plastic-steel reinforced winding drainage and sewage pipe.
[0033] Reference Figure 1 and Figure 2A polyolefin plastic-steel reinforced winding drainage and sewage pipe includes a pipe body 1 formed by spirally winding a plastic strip body 2. The plastic strip body 2 is a rectangular long strip structure, made of polyolefin, such as polyethylene, and spirally wound to form the shape of the pipe body 1. A steel strip 3 is fixedly arranged on the plastic strip body 2, and three steel strips 3 are integrally fixedly arranged on each plastic strip body 2, and the steel strip 3 is arranged on the outer side wall of the plastic strip body 2. The outer side wall of the plastic strip body 2 is the side wall away from the center of the pipe body 1 after being wound into the pipe body 1.
[0034] Reference Figure 1 and Figure 2 The tube body 1 is provided with a protective layer 12 for wrapping the steel strip 3. The protective layer 12 is made of polyolefin and is compositely bonded to the outer wall of the plastic strip body 2. The tube body 1 is provided with convex ridges 11 at the connection of the two plastic strip bodies 2. The fusion joints on both sides of the plastic strip body 2 are mutually squeezed to form the convex ridges 11 protruding upwards, which effectively increases the contact area of the connection of the tube body 1, thereby improving the stability of the connection.
[0035] Reference Figure 2 and Figure 3 The steel belt 3 is fixedly provided with an anti-slipping strip 31 on one side close to the inside of the tube body 1. The anti-slipping strip 31 is a steel strip, and the thickness of the anti-slipping strip 31 is greater than the thickness of the steel belt 3. The thickness of the anti-slipping strip 31 is greater than the thickness of the steel belt 3. The anti-slipping strip 31 is wrapped in the plastic belt body 2, which improves the radial restraint force of the steel belt 3 along the tube body 1, prevents the steel belt 3 from being displaced radially along the tube body 1, and improves the stability of the steel belt 3.
[0036] Reference Figure 3 A force unloading opening 32 is provided on one side of the steel belt 3 away from the middle of the tube body 1. The force unloading opening 32 is a V-shaped opening, and the opening gradually decreases from the end away from the anti-slip strip 31 to the end close to the anti-slip strip 31. A plurality of force unloading openings 32 are arranged at intervals along the length direction of the steel belt 3. After the plastic belt body 2 is wound to form the tube body 1, the deformation amount of the outer side of the steel belt 3 is greater than the deformation amount of the inner side. The setting of the force unloading opening 32 facilitates the smooth extension of the outer side of the steel belt 3 and prevents the outer side of the steel belt 3 from being stretched and deformed.
[0037] Reference Figure 2 and Figure 4 A connection groove 21 is provided on one side of the plastic strip 2 along its length direction, and the connection groove 21 passes through the inner side wall of the plastic strip 2, which is the side wall located inside the tube body 1. A connection block 22 for inserting into the connection groove 21 is fixedly provided on the other side of the plastic strip 2 along its length direction, and the connection block 22 is integrally injection-molded with the plastic strip 2, and the side wall of the connection block 22 away from the plastic strip 2 abuts against the side wall of the connection groove 21.
[0038] Among them, refer to Figure 2 and Figure 4A connecting strip 4 is fixedly arranged on one side of the plastic strip 2 away from the connecting groove 21. The connecting strip 4 is made of a steel strip and is arranged along the length direction of the plastic strip 2. One end of the connecting strip 4 is located inside the plastic strip 2, and the other end extends out of the plastic strip 2 and toward the end of the connecting block 22. The end of the connecting strip 4 extending out of the plastic steel strip 3 is flush with the connecting block 22. After the connecting strip 4 and the connecting block 22 are inserted into the connecting groove 21, the connecting block 22 is flush with the plastic strip 2.
[0039] Reference Figure 4 The connecting strip 4 is provided with a plurality of connecting holes 41 at intervals along its length direction. The connecting strip 4 is provided with a clamping groove 42 on both sides along its length direction. The clamping groove 42 is provided as a T-shaped groove or a dovetail groove. A plurality of clamping grooves 42 are provided along the length direction of the connecting strip 4, and the clamping grooves 42 on both sides of the connecting strip 4 are mutually staggered. The molten plastic enters the connecting hole 41, thereby increasing the friction between the connecting strip 4 and the plastic belt body 2, and increasing the tensile strength of the connection of the tube body 1 along the axial direction of the tube body 1.
[0040] The implementation principle of the embodiment of the present application is as follows: during the process of spirally winding the plastic strip 2 into the tube 1, one side of the plastic strip 2 with the connecting block 22 gradually contacts the other side of the plastic strip 2, so that the connecting block 22 is pressed downward into the connecting groove 21, and the connecting block 22 and the connecting groove 21 are pressed against each other and melt-bonded. The connecting block 22 and the connecting groove 21 increase the contact area on both sides of the plastic strip 2, effectively improve the connection strength, and thus improve the overall service life of the tube 1. At the same time, the end of the connecting strip 4 located outside the plastic strip 2 is inserted into the connecting groove 21, and is fixed to the other side of the plastic strip 2 together with the connecting block 22, so that the two ends of the connecting strip 4 are respectively located on both sides of the connection of the tube 1, which increases the structural strength and tensile strength of the connection, and further improves the overall service life of the tube 1.
[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A polyolefin plastic-steel reinforced winding drainage and sewage pipe, comprising a pipe body (1) formed by spirally winding a plastic belt body (2), wherein a steel belt (3) is fixedly arranged on the plastic belt body (2), characterized in that: A connecting groove (21) is provided on one side of the plastic belt body (2) along its length direction, and the connecting groove (21) passes through the inner side wall of the plastic belt body (2). A connecting block (22) for inserting into the connecting groove (21) is fixedly provided on the other side of the plastic belt body (2) along its length direction, and the connecting block (22) is away from the side wall of the plastic belt body (2) and abuts against the side wall of the connecting groove (21).
2. The polyolefin plastic-steel reinforced winding drainage and sewage pipe according to claim 1, characterized in that: A connecting strip (4) is fixedly arranged on one side of the plastic strip (2) away from the connecting groove (21), and the connecting strip (4) is arranged along the length direction of the plastic strip (2), and one end of the connecting strip (4) is located inside the plastic strip (2), and the other end extends outside the plastic strip (2) and toward the end of the connecting block (22).
3. The polyolefin plastic-steel reinforced winding drainage and sewage pipe according to claim 2 is characterized by: The connecting strip (4) is provided with a plurality of connecting holes (41) at intervals along its length direction.
4. The polyolefin plastic-steel reinforced winding drainage and sewage pipe according to claim 2, characterized in that: The connecting strip (4) is provided with card slots (42) on both sides along its length direction, and a plurality of card slots (42) are provided along the length direction of the connecting strip (4).
5. The polyolefin plastic-steel reinforced winding drainage and sewage pipe according to claim 4, characterized in that: The clamping groove (42) is configured as a T-shaped groove or a dovetail groove.
6. The polyolefin plastic-steel reinforced winding drainage and sewage pipe according to claim 1, characterized in that: The tube body (1) is provided with convex ridges (11) at the connection between the two plastic strips (2).
7. The polyolefin plastic-steel reinforced winding drainage and sewage pipe according to claim 1, characterized in that: An anti-slip strip (31) is fixedly provided on one side of the steel strip (3) close to the inside of the tube body (1), and the thickness of the anti-slip strip (31) is greater than the thickness of the steel strip (3).
8. The polyolefin plastic-steel reinforced winding drainage and sewage pipe according to claim 2, characterized in that: A force unloading opening (32) is provided on one side of the steel belt (3) away from the middle of the tube body (1), and a plurality of the force unloading openings (32) are arranged at intervals along the length direction of the steel belt (3).