Composite reinforced flexible polyolefin high pressure pipe

By introducing sealing and connection mechanisms into composite reinforced flexible polyolefin high-pressure pipes, and utilizing elastic elements to absorb vibration forces and snap-fit ​​structures to achieve rapid connection, the problems of easy leakage and complex connection of traditional pipes are solved, thereby improving the sealing performance and installation efficiency of the pipes.

CN224301614UActive Publication Date: 2026-05-29SICHUAN SUMAO PLASTIC TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SUMAO PLASTIC TECHNOLOGY CO LTD
Filing Date
2025-08-13
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional composite reinforced flexible polyolefin high-pressure pipes are prone to leakage due to vibration at the connection points, and the multi-pipe connection process is cumbersome and cannot effectively buffer thermal stress and seal.

Method used

The design incorporates sealing and connection mechanisms, including a housing, cushioning components, fixing components, and snap-fit ​​components. It achieves quick sealing and simplified connection through threaded connections and elastic elements, utilizes springs to absorb vibration forces, and uses a snap-fit ​​structure to enable quick disassembly.

Benefits of technology

It effectively prevents pipe leaks, simplifies connection and disassembly steps, improves installation efficiency, enhances flexibility and pressure resistance, and buffers thermal stress.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to high pressure pipe technical field discloses a kind of composite reinforced flexible polyolefin high pressure pipes, including pipe body, the outer wall left and right sides of pipe body are fixedly connected with sealing mechanism, the sealing mechanism prevents pipe body from leaking, the left and right ends of pipe body are slidably connected with connecting mechanism, the connecting mechanism makes multiple end pipe body can be quickly spliced disassembly, the outer wall of pipe body is equipped with corrugated groove, the sealing mechanism includes shell one, the outer wall of shell one is fixedly connected with buffer assembly, the other end of multiple buffer assemblies is fixedly connected with shell two, the outer wall of shell one and shell two is equipped with recess, the inner wall top of shell one and shell two is fixedly connected with upper fixed component.
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Description

Technical Field

[0001] This utility model relates to the field of high-pressure pipe technology, and in particular to a composite reinforced flexible polyolefin high-pressure pipe. Background Technology

[0002] Composite reinforced flexible polyolefin is a polyolefin-based composite material that combines flexibility and high strength through the composite modification of multiple materials. Due to its low cost, good processability and excellent chemical corrosion resistance, polyolefin materials have been widely used in packaging, construction and pipeline fields since their industrial production in the 1950s. In the course of industrial development, traditional pipeline materials have played an important role at different stages. However, as the performance requirements of various industries for pipelines have increased, their limitations have become increasingly prominent. Metal pipelines, such as seamless steel pipes, although they have high strength and good rigidity and can withstand certain pressures, are extremely susceptible to corrosion. Therefore, composite reinforced flexible polyolefin high-pressure pipes have emerged.

[0003] However, the sealing devices at the joints of traditional composite reinforced flexible polyolefin high-pressure pipes are prone to fatigue fracture due to vibrations caused by fluid flow, leading to pipe leaks. Furthermore, the connection of multiple pipes is overly complex and the operation is cumbersome. When transporting high-temperature or low-temperature media, energy loss is significant, and large thermal stresses caused by temperature changes can lead to interface leaks. While current market technologies using composite reinforced flexible polyolefins offer low thermal conductivity for reduced energy consumption and good flexibility to buffer thermal stress, combined with sealing technology to prevent interface leaks, the sealing devices at the joints are still too simplistic, leading to vibrations and leaks. Additionally, the connection process for multiple pipes is cumbersome and time-consuming. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a composite reinforced flexible polyolefin high-pressure pipe, which aims to improve the problems of the sealing device at the connection point in the prior art being too simple, resulting in vibration and leakage, and the cumbersome connection steps of multiple pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a composite reinforced flexible polyolefin high-pressure pipe, comprising a pipe body, wherein sealing mechanisms are fixedly connected to the left and right sides of the outer wall of the pipe body to prevent leakage of the pipe body, and connecting mechanisms are slidably connected to the left and right ends of the pipe body to enable quick splicing and disassembly of the multi-end pipe body, and corrugated grooves are provided on the outer wall of the pipe body.

[0006] The sealing mechanism includes a first outer shell, a buffer assembly fixedly connected to the outer wall of the first outer shell, and a second outer shell fixedly connected to the other end of each of the buffer assemblies. The outer walls of both the first and second outer shells have grooves. The top of the inner walls of both the first and second outer shells are fixedly connected to an upper fixing assembly, and the bottom of the inner walls of both the first and second outer shells are fixedly connected to a lower fixing assembly. The inner walls of both the upper and lower fixing assemblies are fixedly connected to a sealing assembly.

[0007] As a further description of the above technical solution:

[0008] The connecting mechanism includes a sliding groove, and multiple sliding grooves are formed on the right side of the tube body. The inner wall of each sliding groove is fixedly connected with a slot assembly. The left end of each tube body is fixedly connected with a second fixing post. The left side of the outer wall of each second fixing post is fixedly connected with a fixing rod. The outer wall of each fixing rod is fixedly connected with a buckle assembly.

[0009] As a further description of the above technical solution:

[0010] The buffer assembly includes support columns, the bottom ends of which are fixedly connected to the second outer shell, the top ends of which are fixedly connected to the first outer shell, and a spring is fixedly connected to the outer wall of each support column.

[0011] As a further description of the above technical solution:

[0012] The upper fixing component includes an upper half ring, the tops of the two upper half rings are fixedly connected to the outer shell, the top of each upper half ring is threaded with a screw, and the outer walls of the multiple screws are threaded with nuts.

[0013] As a further description of the above technical solution:

[0014] The lower fixing component includes a lower half ring, the tops of the two lower half rings are fixedly connected to the outer shell, and the top of the outer wall of each lower half ring is fixedly connected to a perforated plate.

[0015] As a further description of the above technical solution:

[0016] The sealing assembly includes sealing rings, the outer walls of both sealing rings are fixedly connected to the lower half ring, and the outer walls of the sealing rings are provided with mounting grooves.

[0017] As a further description of the above technical solution:

[0018] The slot assembly includes a fixing post 1, the bottom ends of multiple fixing posts 1 are fixedly connected to the slide groove, the outer wall of each fixing post 1 is fixedly connected to a spring 2, and the top of each fixing post 1 is fixedly connected to an inclined block.

[0019] As a further description of the above technical solution:

[0020] The buckle assembly includes an upper abutment, the bottom of which is fixedly connected to a fixing rod, and a lower abutment is slidably connected to the bottom of the outer wall of the fixing rod.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, firstly, the screw on the upper half ring is aligned with the hole plate on the lower half ring. Then, the nut is rotated to fix the sealing ring with the upper half ring and the lower half ring. Subsequently, the grooves on the outer shell 1 and the outer shell 2 cover its protruding part. When the flow in the tube begins, the vibration force generated is diffused to the spring 1 on the outer shell 1 and the outer shell 2, thereby causing the spring 1 to deform and absorb the vibration force, preventing the sealing ring from slipping off and causing leakage.

[0023] 2. In this utility model, firstly, align the left fixing rod with the right sliding groove, so that the upper abutment on the fixing rod presses against the inclined block in the sliding groove. When it reaches the middle of the upper and lower abutments, since there is no force to press, it is locked by the spring at the bottom. When disassembly is required, simply push the fixing rod forward so that the lower abutment at the bottom of the fixing rod presses against the inclined block, and then pull out the fixing rod. The pipe connection and disassembly steps are simple and time-saving. Attached Figure Description

[0024] Figure 1 This is a front perspective view of a composite reinforced flexible polyolefin high-pressure pipe proposed in this utility model;

[0025] Figure 2 This is a right-side perspective view of a composite reinforced flexible polyolefin high-pressure pipe proposed in this utility model;

[0026] Figure 3 This is a left perspective view of a composite reinforced flexible polyolefin high-pressure pipe proposed in this utility model;

[0027] Figure 4 This is a partial structural exploded view of the outer shell of a composite reinforced flexible polyolefin high-pressure pipe proposed in this utility model;

[0028] Figure 5 This is a partial structural dissection of the sealing ring of a composite reinforced flexible polyolefin high-pressure pipe proposed in this utility model.

[0029] Legend:

[0030] 1. Pipe body; 2. Sealing mechanism; 201. Outer shell one; 202. Outer shell two; 203. Buffer assembly; 2031. Support column; 2032. Spring one; 204. Groove; 205. Upper fixing assembly; 2051. Upper half ring; 2052. Screw; 2053. Nut; 206. Lower fixing assembly; 2061. Lower half ring; 2062. Orifice plate; 207. Sealing assembly; 2071. Sealing ring; 2072. Mounting groove; 3. Connecting mechanism; 301. Slide groove; 302. Slot assembly; 3021. Fixing column one; 3022. Spring two; 3023. Inclined block; 303. Fixing column two; 304. Fixing rod; 305. Buckle assembly; 3051. Upper abutment; 3052. Lower abutment; 4. Corrugated groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 The present invention provides an embodiment of a composite reinforced flexible polyolefin high-pressure pipe, comprising a pipe body 1. Sealing mechanisms 2 are firmly fixedly connected to the left and right sides of the outer wall of the pipe body 1. The main function of the sealing mechanism 2 is to effectively prevent any form of leakage from the pipe body 1 during use, thereby ensuring the safety and reliability of the entire pipeline system. Connecting mechanisms 3 are installed at both ends of the pipe body 1 through a sliding connection, which allows multiple pipe bodies 1 to be easily and quickly spliced ​​and disassembled, greatly improving the efficiency of installation and maintenance. Corrugated grooves 4 are also provided on the outer wall of the pipe body 1. These corrugated grooves 4 enhance the flexibility of the pipe body 1 and can also improve its pressure resistance to a certain extent.

[0033] The sealing mechanism 2 includes a first outer shell 201. A buffer assembly 203 is fixedly connected to the outer wall of the first outer shell 201. Multiple buffer assemblies 203 are fixedly connected to the outer wall of the first outer shell 201. A second outer shell 202 is fixedly connected to the other end of each of these buffer assemblies 203. Grooves 204 are provided on the outer walls of both the first outer shell 201 and the second outer shell 202. These grooves 204 help to better fix and seal. An upper fixing assembly 205 is firmly fixedly connected to the top of the inner wall of both the first outer shell 201 and the second outer shell 202, while a lower fixing assembly 206 is fixedly connected to the bottom of the inner wall. A sealing assembly 207 is fixedly connected to the inner wall of both the upper fixing assembly 205 and the lower fixing assembly 206.

[0034] Specifically, the left and right sides of the outer wall of the pipe body 1 are fixed with sealing mechanisms 2 to prevent leakage and ensure the safety and reliability of the system. The left and right ends are slidably connected with connecting mechanisms 3 to facilitate the quick splicing and disassembly of multiple pipe bodies 1, improving installation and maintenance efficiency. The outer wall is opened with corrugated grooves 4 to enhance flexibility and improve pressure resistance. The sealing mechanism 2 includes a first outer shell 201, which is fixed with multiple buffer components 203. The other end is connected to a second outer shell 202. The outer walls of the first outer shell 201 and the second outer shell 202 are opened with grooves 204 to help fix and seal. The top and bottom of the inner wall are fixed with upper fixing components 205 and lower fixing components 206 respectively. The inner wall is fixed with sealing components 207.

[0035] Please see the appendix Figure 2 - Appendix Figure 3 The connecting mechanism 3 includes slides 301, which are all located on the right side of the tube body 1. Each slide 301 has a slot assembly 302 securely connected to its inner wall to ensure the stability and reliability of the connection. The left end of the tube body 1 is securely connected to fixing posts 303. The left side of the outer wall of each fixing post 303 is tightly connected to fixing rods 304. The outer walls of multiple fixing rods 304 are securely connected to snap-fit ​​assemblies 305 to achieve precise docking and secure locking between the components.

[0036] Specifically, the connecting mechanism 3 includes a slide 301, which is opened on the right side of the tube body 1. The inner wall fixing slot assembly 302 ensures a stable and reliable connection. The left end of the tube body 1 is fixed with a fixing post 303, and the left side of its outer wall is connected to a fixing rod 304. The outer wall fixing buckle assembly 305 of the fixing rod 304 achieves precise docking and firm locking.

[0037] Please see the appendix Figure 4 - Appendix Figure 5The buffer assembly 203 includes support columns 2031, the bottom ends of which are securely connected to the outer shell 202 to ensure stability. The top ends of the support columns 2031 are also reliably connected to the outer shell 201 to form an integral structure. A spring 2032 is fixedly connected to the outer wall of each support column 2031 to provide necessary cushioning and elastic support. The upper fixing assembly 205 mainly consists of two upper rings 2051, the tops of which are tightly fixed to the outer shell 201 to ensure accurate positioning. A screw 2052 is threaded to the top of each upper ring 2051, and a nut 2053 is threaded to the outer wall of each screw 2052 for adjustment and fixation. The position and tightness of the upper fixing component 205 are determined. The lower fixing component 206 includes two lower half-rings 2061. The tops of these two lower half-rings 2061 are also firmly fixed to the outer shell 201 to ensure its stability. The top of the outer wall of each lower half-ring 2061 is fixedly connected to a perforated plate 2062, which is used to provide support and fixation. The sealing component 207 is mainly composed of two sealing rings 2071. The outer walls of these two sealing rings 2071 are tightly fixed to the lower half-rings 2061 to ensure the sealing effect. The outer wall of each sealing ring 2071 is provided with a mounting groove 2072. These mounting grooves 2072 are used to install the upper fixing component 205 and the lower fixing component 206 to ensure the functionality and sealing of the entire sealing component 207.

[0038] Specifically, the buffer assembly 203 includes a support column 2031, the bottom of which is firmly connected to the outer shell 202 and the top of which is reliably connected to the outer shell 1 201. The outer wall fixing spring 2032 provides buffer elastic support. The upper fixing assembly 205 consists of two upper half rings 2051, the top of which is tightly connected to the outer shell 1 201. The top of the screw is threaded to a screw rod 2052, and the outer wall of the screw rod 2052 is threaded to a nut 2053, which facilitates adjustment of the fixing position and tightness. The lower fixing assembly 206 includes two lower half rings 2061, the top of which is firmly connected to the outer shell 1 201. The top fixing plate 2062 on the outer wall provides support and fixation. The sealing assembly 207 consists of two sealing rings 2071, the outer wall of which is tightly connected to the lower half ring 2061 to ensure the sealing effect. The outer wall has an installation groove 2072 for installing the upper fixing assembly 205 and the lower fixing assembly 206, ensuring the functionality and sealing performance of the sealing assembly 207.

[0039] Please see the appendix Figure 2 - Appendix Figure 3The slot assembly 302 includes a first fixing post 3021, the bottom of which is fixedly connected to the slide groove 301 by a firm connection to ensure that it will not be displaced during use. A second spring 3022 is fixedly connected to the outer wall of each first fixing post 3021. The second spring 3022 is mainly used to provide elastic force to ensure that the slot assembly 302 can move flexibly during operation. A wedge 3023 is fixedly connected to the top of each first fixing post 3021. The wedge 3023 facilitates the cooperation of the slot assembly 302 with other components and enhances the stability of the overall structure. The buckle assembly 305 includes multiple upper abutments 3051. The bottom of each upper abutment 3051 is firmly fixedly connected to the fixing rod 304 to ensure that it can remain stable during use. The bottom of the outer wall of the fixing rod 304 is slidably connected to a lower abutment 3052. This slidable connection allows the lower abutment 3052 to move flexibly on the fixing rod 304.

[0040] Specifically, the slot assembly 302 includes a fixing post 3021, the bottom of which is firmly connected to the slide groove 301 to prevent displacement during use. The outer wall is fixed with a spring 3022 to provide elasticity, allowing the slot assembly 302 to move flexibly during operation. The top is fixed with an inclined block 3023 to facilitate cooperation with other components and enhance the overall structural stability. The buckle assembly 305 includes multiple upper abutments 3051, the bottom of which is firmly connected to the fixing rod 304 to maintain stability during use. The bottom of the outer wall of the fixing rod 304 is slidably connected to the lower abutment 3052, allowing the lower abutment 3052 to move flexibly on the fixing rod 304.

[0041] Working principle: First, install sealing rings 2071 at both ends of the pipe body 1. Then, along the mounting groove 2072 on the outer wall of the sealing ring 2071, first place the upper half ring 2051 into the mounting groove 2072, and then place the lower half ring 2061 into the other side of the mounting groove 2072. Next, align the screw 2052 on the upper half ring 2051 with the orifice plate 2062 on the lower half ring 2061, and then rotate the nut 2053 on the screw 2052 so that the upper half ring 2051 and the lower half ring 2061 are aligned. 2061 Fix the sealing ring 2071, and then put the protruding parts of the outer walls of the upper half ring 2051 and the lower half ring 2061 into the grooves 204 opened in the outer shell 1 201 and the outer shell 202. When the object flows in the pipe body 1, the sealing ring 2071 keeps the connection of the multi-end pipe body 1 in a sealed state to prevent leakage. The vibration force generated during the flow process causes the spring 2032 between the outer shell 1 201 and the outer shell 202 to deform, thereby absorbing the vibration force and preventing the sealing ring 2071 from slipping off.

[0042] When connecting pipe 1, align the left side of one end of pipe 1 with the right side of the other end of pipe 1, so that the fixing rod 304 on the left end of pipe 1 is inserted into the groove 301 of the right end of pipe 1. Then, with the help of pushing force, the upper abutment 3051 on the fixing rod 304 presses against the inclined blocks 3023 on both sides of the inner wall of the groove 301. When the inclined block 3023 is pressed to the middle of the upper abutment 3051 and the lower abutment 3052, it is reset by the spring 3022 at its bottom end, thus locking in the middle of the upper abutment 3051 and the lower abutment 3052, thus completing the connection. When it is necessary to disassemble the multi-end pipe, simply push the left end of pipe 1 forward, so that the lower abutment 3052 at the bottom of the fixing rod 304 moves forward, thereby pressing against the inclined block 3023 in the middle and sliding on the fixing rod 304. When it slides to the bottom of the upper abutment 3051, pull it out to complete the disassembly.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite reinforced flexible polyolefin high-pressure pipe, comprising a pipe body (1), characterized in that: The outer wall of the tube (1) is fixedly connected to the left and right sides with sealing mechanisms (2). The sealing mechanisms (2) prevent the tube (1) from leaking. The left and right ends of the tube (1) are slidably connected with connecting mechanisms (3). The connecting mechanisms (3) enable the multi-end tube (1) to be quickly spliced ​​and disassembled. The outer wall of the tube (1) is provided with corrugated grooves (4). The sealing mechanism (2) includes a first outer shell (201), a buffer assembly (203) is fixedly connected to the outer wall of the first outer shell (201), and a second outer shell (202) is fixedly connected to the other end of each of the buffer assemblies (203). The outer walls of the first outer shell (201) and the second outer shell (202) are provided with grooves (204). The top of the inner walls of the first outer shell (201) and the second outer shell (202) are fixedly connected to an upper fixing assembly (205). The bottom of the inner walls of the first outer shell (201) and the second outer shell (202) are fixedly connected to a lower fixing assembly (206). The inner walls of the upper fixing assembly (205) and the lower fixing assembly (206) are fixedly connected to a sealing assembly (207).

2. The composite reinforced flexible polyolefin high-pressure pipe according to claim 1, characterized in that: The connecting mechanism (3) includes a slide groove (301), and multiple slide grooves (301) are opened on the right side of the tube body (1). The inner wall of each slide groove (301) is fixedly connected with a slot assembly (302). The left end of each tube body (1) is fixedly connected with a second fixing post (303). The left side of the outer wall of each second fixing post (303) is fixedly connected with a fixing rod (304). The outer wall of each fixing rod (304) is fixedly connected with a buckle assembly (305).

3. The composite reinforced flexible polyolefin high-pressure pipe according to claim 1, characterized in that: The buffer assembly (203) includes support columns (2031), the bottom ends of the multiple support columns (2031) are fixedly connected to the second outer shell (202), the top ends of the support columns (2031) are fixedly connected to the first outer shell (201), and the outer walls of the support columns (2031) are fixedly connected to the first spring (2032).

4. The composite reinforced flexible polyolefin high-pressure pipe according to claim 1, characterized in that: The upper fixing component (205) includes an upper half ring (2051), the tops of the two upper half rings (2051) are fixedly connected to the outer shell (201), the top of each upper half ring (2051) is threaded with a screw (2052), and the outer walls of the multiple screws (2052) are threaded with nuts (2053).

5. The composite reinforced flexible polyolefin high-pressure pipe according to claim 1, characterized in that: The lower fixing component (206) includes a lower half ring (2061), the tops of the two lower half rings (2061) are fixedly connected to the outer shell (201), and the top of the outer wall of each lower half ring (2061) is fixedly connected to a perforated plate (2062).

6. The composite reinforced flexible polyolefin high-pressure pipe according to claim 5, characterized in that: The sealing assembly (207) includes a sealing ring (2071), the outer walls of both sealing rings (2071) are fixedly connected to the lower half ring (2061), and the outer walls of the sealing rings (2071) are provided with mounting grooves (2072).

7. The composite reinforced flexible polyolefin high-pressure pipe according to claim 2, characterized in that: The slot assembly (302) includes a fixing post (3021), the bottom ends of the fixing posts (3021) are fixedly connected to the slide (301), the outer walls of the fixing posts (3021) are fixedly connected to springs (3022), and the top ends of the fixing posts (3021) are fixedly connected to inclined blocks (3023).

8. A composite reinforced flexible polyolefin high-pressure pipe according to claim 2, characterized in that: The buckle assembly (305) includes an upper abutment (3051), the bottom of which is fixedly connected to a fixing rod (304), and a lower abutment (3052) is slidably connected to the bottom of the outer wall of the fixing rod (304).