Ultra-high molecular weight polyethylene composite pipe fixing structure

By designing a fixed structure including a top ring, a press ring, a slide rod and a spring, the problem of the ultra-high molecular weight polyethylene composite tube expanding under high pressure or high impact causes damage to the fixture, and the stable fixation of the pipe and the provision of expansion space are achieved.

CN222910977UActive Publication Date: 2025-05-27SHENGLI OILFIELD DONGFANG PENGDA NON-METALLIC MATERIAL PROD CO LTD
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Patent Information

Application Number
CN202421476071.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-05-27
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

Existing ultra-high molecular weight polyethylene composite pipes are prone to expand under high pressure or high impact, resulting in the inability to provide sufficient expansion space for existing metal clamps or plastic strap fixings, which can easily lead to damage to the pipes or fixings.

Method used

A fixed structure including a top ring, a press ring, a lower sliding rod, an upper sliding rod, a spring and a nut is designed. The pipe is installed between the top ring and the press ring. When the pipe expands, the press ring moves upward, driving the lower sliding rod and the upper sliding rod to slide, and the spring is compressed to provide expansion space for the pipe.

Benefits of technology

It effectively avoids damage to pipes or fixtures under high pressure or high impact conditions, improves the fixing effect of the pipes, and ensures stable fixation of the pipes after expansion is completed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of polyethylene composite pipes, and discloses an ultra-high molecular weight polyethylene composite pipe fixing structure which comprises a bottom plate, a supporting plate is installed on the top face of the bottom plate, a top ring is fixedly connected to the top of the supporting plate, a pressing ring is arranged above the top ring, and a lower sliding rod is fixedly connected to the top face of the top plate. A lower spring is arranged on the upper middle portion of the outer wall of the lower sliding rod, a lower nut is in threaded connection with the top of the outer wall of the lower sliding rod, an upper sliding rod is fixedly connected to the bottom face of the pressing plate, an upper spring is arranged on the lower middle portion of the outer wall of the upper sliding rod, and an upper nut is in threaded connection with the bottom of the outer wall of the upper sliding rod. The middle of the outer wall of the upper sliding rod penetrates through the top plate. According to the utility model, the pipeline is arranged between the top ring and the pressing ring, and when the pipeline expands, the pressing ring can be driven to move upwards to be far away from the top ring, so that a space is provided for the expansion of the pipeline, and the pipeline or a fixed part is prevented from being damaged in a high-pressure or high-impact state.
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Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene composite pipes, in particular to a fixing structure for ultra-high molecular weight polyethylene composite pipes. Background Art

[0002] Ultra-high molecular weight polyethylene (UHMWPE) is a thermoplastic polymer with an extremely high molecular weight, and its molecular weight is usually above several million grams per mole. Therefore, ultra-high molecular weight polyethylene has excellent mechanical properties such as corrosion resistance, low friction coefficient, impact resistance, and long-term durability. Therefore, in modern industry, it is usually made into pipes and has a very wide range of applications in many industries such as petroleum, natural gas, mining, and water treatment.

[0003] However, in the use of existing ultra-high molecular weight polyethylene composite pipes, fixing parts are needed to fix them to prevent displacement during the process of medium transportation.

[0004] However, in the use of existing fixing parts, they are generally metal clamps or plastic straps. Therefore, after the ultra-high molecular weight polyethylene composite pipes are fixed by them, the ultra-high molecular weight polyethylene composite pipes will expand under high pressure or high impact during the transportation of the medium. And the fixing parts made of metal clamps or plastic straps do not have elasticity. Therefore, it is easy to cause damage to the pipes or the fixing parts under the expansion of the ultra-high molecular weight polyethylene composite pipes. For this reason, a fixing structure for ultra-high molecular weight polyethylene composite pipes is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a fixing structure for ultra-high molecular weight polyethylene composite pipes, aiming to improve the problem that the existing ultra-high molecular weight polyethylene composite pipes will expand under high pressure or high impact, and the fixing parts made of metal clamps or plastic straps cannot provide expansion space for the pipes, thus easily causing damage to the pipes or the fixing parts.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A fixing structure for ultra-high molecular weight polyethylene composite pipes, including a bottom plate, a support plate is installed on the top surface of the bottom plate, a top ring is fixedly connected to the top of the support plate, a pressure ring is arranged above the top ring, top plates and pressing plates are respectively fixedly connected to the adjacent surfaces of the top ring and the pressure ring, a pipe is installed between the top ring and the pressure ring, a downward sliding rod is fixedly connected to the top surface of the top plate, a lower spring is arranged in the upper middle part of the outer wall of the downward sliding rod, a lower nut is threadedly connected to the top of the outer wall of the downward sliding rod, and the middle part of the outer wall of the downward sliding rod penetrates through the pressing plate. A upward sliding rod is fixedly connected to the bottom surface of the pressing plate, an upper spring is arranged in the lower middle part of the outer wall of the upward sliding rod, an upper nut is threadedly connected to the bottom of the outer wall of the upward sliding rod, and the middle part of the outer wall of the upward sliding rod penetrates through the top plate. A fixing component for fixing the support plate is installed on the top surface of the bottom plate.

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

[0008] A lower insertion hole is formed in the middle of the top plate, and the upper sliding rod is slidably connected to the inside of the lower insertion hole.

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

[0010] An upper insertion hole is formed in the middle of the pressing plate, and the lower sliding rod is slidably connected to the inside of the upper insertion hole.

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

[0012] Threads are provided at the top of the outer wall of the lower sliding rod and the bottom of the outer wall of the upper sliding rod, and the upper nut and the lower nut are respectively threadedly connected to the two side threads.

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

[0014] A groove is formed at the top of the support plate, and the bottom surface of the top ring is fixedly connected to the inner wall of the groove.

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

[0016] The fixing component includes a baffle plate. The bottom of the baffle plate is fixedly connected to the top surface of the bottom plate, and the side wall of the baffle plate is in contact with the side wall of the support plate. A bolt is threadedly connected to the middle of the baffle plate, and a locking nut is threadedly connected to one end of the bolt, and the bolt penetrates through the support plate.

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

[0018] A plurality of mounting holes are formed in the outer side of the middle of the bottom plate, and there are two support plates and four baffle plates. The four baffle plates are respectively located at the bottoms of the outer walls of the two support plates.

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

[0020] First reinforcing plates are fixedly connected to the adjacent sides of the two baffle plates in the middle of the bottom plate, and second reinforcing plates are fixedly connected to the opposite sides of the two baffle plates on the outer side of the middle of the bottom plate, and the bottoms of the first reinforcing plates and the second reinforcing plates are fixedly connected to the top surface of the bottom plate.

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

[0022] 1. In the present utility model, by installing the pipeline between the top ring and the pressing ring, when the pipeline expands, it can drive the pressing ring to move upward away from the top ring. At this time, the lower sliding rod can slide inside the pressing plate, and the upper sliding rod can slide inside the top plate. Meanwhile, the upper spring and the lower spring can be compressed, thereby providing space for the expansion of the pipeline. After the expansion ends, the upper spring and the lower spring can be used to make the pressing ring approach the top ring again to prevent the pipeline from loosening, thus avoiding damage to the pipeline or the fixing parts under high pressure or high impact conditions.

[0023] 2. In the present utility model, by inserting the support plate between the two baffle plates, the position of the support plate can be guided during installation, thereby achieving the effect of auxiliary positioning. Therefore, the convenience of installing the support plate can be improved. And the baffle plates can be supported by the first reinforcement plate and the second reinforcement plate to improve their structural strength and increase the stability of pipeline installation. Description of the Drawings

[0024] Figure 1 is a three-dimensional structural schematic diagram of a fixing structure for a ultra-high molecular weight polyethylene composite pipe proposed by the present utility model;

[0025] Figure 2 is a partial structural split view of the top ring of a fixing structure for a ultra-high molecular weight polyethylene composite pipe proposed by the present utility model;

[0026] Figure 3 is a partial structural split view of the threaded section of a fixing structure for a ultra-high molecular weight polyethylene composite pipe proposed by the present utility model;

[0027] Figure 4 is a partial structural split view of the support plate of a fixing structure for a ultra-high molecular weight polyethylene composite pipe proposed by the present utility model.

[0028] Legend Explanation:

[0029] 1. Bottom plate; 2. Support plate; 3. Top ring; 4. Pressing ring; 5. Pipeline; 6. Top plate; 7. Pressing plate; 8. Lower sliding rod; 9. Lower nut; 10. Lower spring; 11. Upper sliding rod; 12. Upper nut; 13. Upper spring; 14. Lower socket; 15. Upper socket; 16. Threaded section; 17. Groove; 18. Baffle plate; 19. Bolt; 20. Locking nut; 21. First reinforcement plate; 22. Second reinforcement plate; 23. Installation hole. Detailed Embodiment

[0030] Next, in combination with the accompanying drawings in the specification of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present utility model: a fixing structure for an ultra-high molecular weight polyethylene composite pipe, including a bottom plate 1, a support plate 2 is installed on the top surface of the bottom plate 1, a top ring 3 is fixedly connected to the top of the support plate 2, a pressure ring 4 is arranged above the top ring 3, top plates 6 and pressure plates 7 are respectively fixedly connected to the adjacent surfaces of the top ring 3 and the pressure ring 4, a pipe 5 is installed between the top ring 3 and the pressure ring 4, a downward sliding rod 8 is fixedly connected to the top surface of the top plate 6, a lower spring 10 is arranged in the upper middle part of the outer wall of the downward sliding rod 8, a lower nut 9 is threadedly connected to the top of the outer wall of the downward sliding rod 8, and the middle part of the outer wall of the downward sliding rod 8 penetrates through the pressure plate 7, a upward sliding rod 11 is fixedly connected to the bottom surface of the pressure plate 7, an upper spring 13 is arranged in the lower middle part of the outer wall of the upward sliding rod 11, an upper nut 12 is threadedly connected to the bottom of the outer wall of the upward sliding rod 11, and the middle part of the outer wall of the upward sliding rod 11 penetrates through the top plate 6, and a fixing component for fixing the support plate 2 is installed on the top surface of the bottom plate 1.

[0032] When in use, first install the pipe 5 between the top ring 3 and the pressure ring 4. When the fluid inside the pipe 5 is under high pressure or high impact, at this time the pipe 5 will expand and exert pressure on the pressure ring 4 to make it move away from the top ring 3. At this time, the downward sliding rod 8 will slide inside the pressure plate 7 and compress the lower spring 10, so that the upward sliding rod 11 slides inside the top plate 6 and compresses the upper spring 13, thereby providing a moving space for the expansion of the pipe 5. When the pipe 5 contracts, the elastic forces of the upper spring 13 and the lower spring 10 will cause the pressure ring 4 to approach the top ring 3, thereby fixing the pipe 5 after the expansion ends. Therefore, the fixing effect on the pipe 5 can be improved, and damage to the pipe 5 or the fixing parts can be avoided.

[0033] Referring to Figure 1 and Figure 2 , a lower insertion hole 14 is opened in the middle of the top plate 6, and the upward sliding rod 11 is slidably connected inside the lower insertion hole 14. An upper insertion hole 15 is opened in the middle of the pressure plate 7, and the downward sliding rod 8 is slidably connected inside the upper insertion hole 15. Threaded sections 16 are arranged at the top of the outer wall of the downward sliding rod 8 and the bottom of the outer wall of the upward sliding rod 11, and the upper nut 12 and the lower nut 9 are respectively threadedly connected to the threaded sections 16 on both sides.

[0034] The lower jack 14 can provide moving space for the upper sliding rod 11, the upper jack 15 can provide moving space for the lower sliding rod 8, and the upper nut 12 and the lower nut 9 can be respectively installed on the upper sliding rod 11 and the lower sliding rod 8 through the threaded section 16, thereby respectively limiting the upper spring 13 and the lower spring 10.

[0035] Referring to Figure 1 、 Figure 2 and Figure 4 ,a groove 17 is formed at the top of the support plate 2, and the bottom surface of the top ring 3 is fixedly connected to the inner wall of the groove 17.

[0036] By providing the groove 17 on the support plate 2, installation space can be provided for the top ring 3, and the support plate 2 can fit the outer shape of the top ring 3.

[0037] Referring to Figure 1 and Figure 4 ,the fixing assembly includes a baffle 18, the bottom of the baffle 18 is fixedly connected to the top surface of the bottom plate 1, and the side wall of the baffle 18 is in contact with the side wall of the support plate 2. A bolt 19 is threadedly connected to the middle of the baffle 18, one end of the bolt 19 is threadedly connected with a locking nut 20, and the bolt 19 penetrates through the support plate 2.

[0038] When installing the support plate 2, the baffle 18 can guide and limit its position, thereby improving the convenience of installation between the support plate 2 and the bottom plate 1. Then insert the bolt 19 into the baffle 18 and the support plate 2, and finally tighten the locking nut 20 to fix the position between the support plate 2 and the baffle 18.

[0039] Referring to Figure 1 and Figure 4 ,a plurality of mounting holes 23 are formed on the outer side of the middle of the bottom plate 1, and there are two support plates 2 and four baffles 18. The four baffles 18 are respectively located at the bottoms of the outer walls of the two support plates 2. First reinforcing plates 21 are fixedly connected to the adjacent sides of the two baffles 18 in the middle of the bottom plate 1, second reinforcing plates 22 are fixedly connected to the opposite sides of the two baffles 18 on the outer side of the middle of the bottom plate 1, and the bottoms of the first reinforcing plates 21 and the second reinforcing plates 22 are fixedly connected to the top surface of the bottom plate 1.

[0040] The bottom plate 1 can be installed through the mounting holes 23, thereby fixing the position of the device. And the first reinforcing plate 21 and the second reinforcing plate 22 are installed on the baffle 18, so as to improve the structural strength between the baffle 18 and the bottom plate 1, and further improve the stability after the pipeline 5 is installed.

[0041] Working principle: When in use, first fix the bottom plate 1 through the mounting holes 23, then move the support plate 2 and insert it between the two baffles 18. Insert the bolt 19 into the baffle 18 and the support plate 2. At this time, use the lock nut 20 and the bolt 19 to fix the support plate 2 between the two baffles 18. Then remove the upper nut 12 and the lower nut 9 from the upper sliding rod 11 and the lower sliding rod 8 respectively. At this time, the pressing ring 4 can be lifted to separate it from the top ring 3. Then place the pipeline 5 in the top ring 3. At this time, move the pressing ring 4 and insert the lower sliding rod 8 into the pressing plate 7, and insert the upper sliding rod 11 into the top plate 6. Then respectively put the upper spring 13 on the outside of the upper sliding rod 11, and put the lower spring 10 on the outside of the lower sliding rod 8. Finally, tighten the upper nut 12 on the upper sliding rod 11 and tighten the lower nut 9 on the lower sliding rod 8. At this time, the installation of the device can be realized, and the pipeline 5 can be fixed by using this device. When the pipeline 5 is under high pressure or high impact, at this time the pipeline 5 will expand, and then press the pressing ring 4, making it away from the top ring 3. At this time, the lower sliding rod 8 will slide in the pressing plate 7 and compress the lower spring 10, and it will also make the upper sliding rod 11 slide inside the top plate 6 to compress the upper spring 13. At this time, it can provide a moving space for the expansion of the pipeline 5, and through the elastic force of the upper spring 13 and the lower spring 10, the pressing ring 4 can be forced to approach the top ring 3, so as to clamp the pipeline 5 when the pipeline 5 expands. When the expansion of the pipeline 5 ends, at this time the upper spring 13 and the lower spring 10 will prompt the pressing ring 4 to approach the top ring 3, so as to fix the pipeline 5 after the expansion ends. Therefore, the fixing effect on the pipeline 5 can be improved, and damage to the pipeline 5 or the fixing parts can be avoided.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An ultra-high molecular weight polyethylene composite pipe fixing structure, comprising a bottom plate (1), characterized in that: A support plate (2) is installed on the top surface of the bottom plate (1), a top ring (3) is fixedly connected to the top of the support plate (2), a pressure ring (4) is arranged above the top ring (3), a top plate (6) and a pressure plate (7) are fixedly connected to the adjacent surfaces of the top ring (3) and the pressure ring (4), a pipe (5) is installed between the top ring (3) and the pressure ring (4), a lower slide rod (8) is fixedly connected to the top surface of the top plate (6), a lower spring (10) is arranged at the middle and upper part of the outer wall of the lower slide rod (8), and the The top of the outer wall of the lower slide bar (8) is threadedly connected to a lower nut (9), and the middle part of the outer wall of the lower slide bar (8) passes through the pressure plate (7), the bottom surface of the pressure plate (7) is fixedly connected to an upper slide bar (11), the middle and lower part of the outer wall of the upper slide bar (11) is provided with an upper spring (13), the bottom of the outer wall of the upper slide bar (11) is threadedly connected to an upper nut (12), and the middle part of the outer wall of the upper slide bar (11) passes through the top plate (6), and the top surface of the bottom plate (1) is installed with a fixing component for fixing the support plate (2).

2. The ultra-high molecular weight polyethylene composite pipe fixing structure according to claim 1, characterized in that: A lower plug hole (14) is provided in the middle of the top plate (6), and the upper sliding rod (11) is slidably connected inside the lower plug hole (14).

3. The ultra-high molecular weight polyethylene composite pipe fixing structure according to claim 1, characterized in that: An upper insertion hole (15) is provided in the middle of the pressing plate (7), and the lower sliding rod (8) is slidably connected inside the upper insertion hole (15).

4. The ultra-high molecular weight polyethylene composite pipe fixing structure according to claim 1, characterized in that: The top of the outer wall of the lower slide bar (8) and the bottom of the outer wall of the upper slide bar (11) are both provided with threaded sections (16), and the upper nut (12) and the lower nut (9) are respectively threadedly connected to the threaded sections (16) on both sides.

5. The ultra-high molecular weight polyethylene composite pipe fixing structure according to claim 1, characterized in that: A groove (17) is provided on the top of the support plate (2), and the bottom surface of the top ring (3) is fixedly connected to the inner wall of the groove (17).

6. The ultra-high molecular weight polyethylene composite pipe fixing structure according to claim 1, characterized in that: The fixing assembly comprises a baffle (18), the bottom of the baffle (18) being fixedly connected to the top surface of the base plate (1), and the side wall of the baffle (18) being in contact with the side wall of the support plate (2), a bolt (19) being threadedly connected to the middle of the baffle (18), a locking nut (20) being threadedly connected to one end of the bolt (19), and the bolt (19) passing through the support plate (2).

7. The ultra-high molecular weight polyethylene composite pipe fixing structure according to claim 6, characterized in that: A plurality of mounting holes (23) are provided on the outer side of the middle portion of the bottom plate (1), two support plates (2) are provided, and four baffle plates (18) are provided. The four baffle plates (18) are respectively located at the bottom of the outer walls of the two support plates (2).

8. The ultra-high molecular weight polyethylene composite pipe fixing structure according to claim 7, characterized in that: The first reinforcing plate (21) is fixedly connected to the adjacent sides of the two baffles (18) in the middle of the bottom plate (1), and the second reinforcing plate (22) is fixedly connected to the distant sides of the two baffles (18) outside the middle of the bottom plate (1), and the bottoms of the first reinforcing plate (21) and the second reinforcing plate (22) are fixedly connected to the top surface of the bottom plate (1).