Bidirectional rotation untwisted crochet pipe

The design of the bidirectional rotating, twist-free braided tube enables flexible adjustment of the braided tube at multiple angles and directions, solving the problem of inflexible turning in existing technologies and improving installation adaptability and the stability and durability of the overall structure.

CN224064994UActive Publication Date: 2026-03-31JIANGSU QIANWEI NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing braided tubing cannot be flexibly turned, making it difficult to fine-tune the angle according to actual needs in installation environments with narrow spaces or complex structures. This increases the difficulty of installation and may lead to stress concentration and fatigue damage.

Method used

It adopts a bidirectional rotating, twist-free braided tube design, which enables flexible adjustment in multiple angles and directions through a rotating connecting ring and rotating mechanism. Combined with a composite structure of polyurethane layer, metal braided layer and glass fiber layer, it enhances stability and durability.

Benefits of technology

It significantly improves installation adaptability and ease of operation, reduces operating resistance, improves assembly quality and efficiency, and enhances the pipeline's reliable operation and service life in harsh environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bi-directional rotation untwisted crochet pipe, which relates to the technical field of crochet pipes, and comprises a pipeline main body, the two ends of the pipeline main body are both rotatably connected with rotary connecting rings, and the two ends of the pipeline main body are both provided with rotary mechanisms. Multi-angle and all-directional flexible adjustment of the first connecting pipe is achieved, the installation adaptability and operation convenience are remarkably improved, in the frequent adjustment process, matching between the hemispheres is tighter, the stability and reliability of the connecting part are further enhanced, the loosening problem caused by repeated rotation is effectively avoided, and meanwhile the service life of the connecting pipe is prolonged. The rotary connecting rings at the two ends of the pipeline body not only ensure sealing and stable connection, but also can provide good supporting and guiding in the rotating process, reduce operation resistance and improve smoothness and efficiency of adjustment, and therefore the overall assembly quality and efficiency are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of crochet tube technology, and in particular to a bidirectional rotating, non-twisting crochet tube. Background Technology

[0002] Braided tubing is a type of flexible tubing manufactured using a special braiding process. It typically consists of an inner tube, a braided layer, and an outer tube. The braided layer is made of high-strength fiber filaments or steel wire, forming a mesh structure that enhances the strength and stability of the tubing.

[0003] However, in the existing technology, when the braided tube cannot be flexibly turned, it will be difficult to make fine-tuning of the angle according to actual needs in the narrow space or complex installation environment. This not only increases the difficulty of installation, but may also lead to incorrect installation. At the same time, since the angle cannot be flexibly adjusted according to the working conditions, stress concentration is likely to occur at the connection, which will aggravate fatigue damage and the risk of failure, and affect the safety of the overall structure. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in existing technologies, when the braided tube cannot be flexibly turned, it is difficult to make fine-tuning of the angle according to actual needs in installation environments with narrow spaces or complex structures. Therefore, this invention proposes a bidirectional rotating, twist-free braided tube.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bidirectional rotating non-twisted hook-braided pipe, comprising a pipe body, with rotating connecting rings rotatably connected to both ends of the pipe body, and a rotating mechanism installed at both ends of the pipe body;

[0006] The rotating mechanism includes a central rod, and two hemispheres are rotatably connected to the outer surfaces of the two central rods. Rotating plates are fixedly connected to one side of each hemisphere facing each other, and the two rotating plates are rotatably connected. One end of one hemisphere is fixedly connected to a first connecting pipe, and one end of the other hemisphere is fixedly connected to a second connecting pipe.

[0007] Preferably, a rotating connecting ring is fixedly connected to one end of the second connecting pipe.

[0008] Preferably, the two rotating connecting rings are connected by rotating relative to each other.

[0009] Preferably, an inner layer is provided on the inner side of the pipe body, and a glass fiber layer is compositely connected to the outer surface of the inner layer.

[0010] Preferably, a metal hook-and-loop layer is compositely connected to the outer surface of the glass fiber layer.

[0011] Preferably, a polyurethane layer is compositely bonded to the outer surface of the metal crochet layer.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, two rotating plates drive two hemispheres to form a spherical connection around the central rod, realizing flexible adjustment of the first connecting pipe at multiple angles and in all directions, significantly improving installation adaptability and ease of operation. During frequent adjustments, the fit between the hemispheres becomes tighter, further enhancing the stability and reliability of the connection, effectively avoiding loosening caused by repeated rotation. At the same time, the rotating connecting rings at both ends of the pipe body not only ensure a sealed and stable connection, but also provide good support and guidance during rotation, reducing operating resistance and improving the smoothness and efficiency of adjustment, thereby significantly improving the overall assembly quality and efficiency.

[0014] 2. In this invention, the polyurethane layer possesses excellent wear resistance, weather resistance, and elasticity, providing primary protection. The intermediate metal braided layer ensures the stability and strength of the overall structure under high pressure or complex operating conditions. The fiberglass layer enhances impact resistance and heat insulation, delaying aging. The inner layer uses corrosion-resistant materials, effectively improving conveying efficiency and preventing leakage and corrosion. The overall design combines strength, flexibility, and durability, significantly improving the pipeline's reliable operation and service life in harsh environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a bidirectional rotating, non-twisting hook-and-braid tube proposed in this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of a bidirectional rotating, non-twisting hook-and-braid tube rotating mechanism proposed in this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of a bidirectional rotating, twist-free hook-and-loop tube rotating mechanism proposed in this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the main body of a bidirectional rotating, non-twisting hook-braided pipe proposed in this utility model.

[0019] Legend: 1. Pipe body; 11. Polyurethane layer; 12. Metal hook-and-loop layer; 13. Fiberglass layer; 14. Inner layer; 2. Rotating connecting ring; 3. Rotating mechanism; 31. First connecting pipe; 32. Hemisphere; 33. Rotating plate; 34. Central rod; 35. Second connecting pipe. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-3 As shown, this utility model provides a bidirectional rotating non-twisted hook-braided pipe, including a pipe body 1, with rotating connecting rings 2 rotatably connected to both ends of the pipe body 1, and rotating mechanisms 3 installed at both ends of the pipe body 1.

[0023] The rotating mechanism 3 includes a central rod 34, and two hemispheres 32 are rotatably connected to the outer surfaces of the two central rods 34. Rotating plates 33 are fixedly connected to the two hemispheres 32 on opposite sides. The two rotating plates 33 are rotatably connected to each other. One end of one hemisphere 32 is fixedly connected to a first connecting pipe 31, and one end of the other hemisphere 32 is fixedly connected to a second connecting pipe 35.

[0024] The specific setup and function of this embodiment are described below. By setting two rotating plates 33, the two hemispheres 32 can be driven to rotate relative to each other, forming a flexible spherical connection structure around the central rod 34. In actual use, the two hemispheres 32 rotate around the central rod 34 as an axis, thereby achieving precise adjustment of the angle of the first connecting pipe 31. This structure allows for flexible adaptation to different installation requirements in multi-angle and multi-directional connection scenarios, greatly improving the adaptability and operability of the connection process.

[0025] Meanwhile, after multiple rotations, the structural fit between the two hemispheres 32 becomes tighter, further enhancing the stability and reliability of the connection and preventing loosening due to frequent angle adjustments. After rotation, the angle of the first connecting tube 31 can be adjusted as needed, achieving a more convenient and precise connection and improving overall assembly efficiency.

[0026] In addition, both ends of the main pipe body 1 are connected to the external structure through fixed rotating connecting rings 2. The rotating connecting rings 2 can not only ensure the sealing and stability of the connection, but also provide support and guidance during the rotation of the main pipe body 1, effectively reducing operating resistance and improving the flexibility and smoothness of rotation.

[0027] Example 2: Figure 3 and Figure 4As shown, a rotating connecting ring 2 is fixedly connected to one end of the second connecting pipe 35. The two rotating connecting rings 2 are rotatably connected to each other. An inner layer 14 is provided inside the pipe body 1, and a glass fiber layer 13 is compositely connected to the outer surface of the inner layer 14. A metal hook-and-loop layer 12 is compositely connected to the outer surface of the glass fiber layer 13. A polyurethane layer 11 is compositely connected to the outer surface of the metal hook-and-loop layer 12.

[0028] The overall effect of this embodiment is that the polyurethane layer 11 is located on the outermost layer of the crocheted tube, serving as the first protective barrier. Its excellent wear resistance can effectively resist friction and impact from the outside, extending its service life. Its good weather resistance ensures that it can maintain stable performance in harsh environments such as high temperature, low temperature, ultraviolet radiation, and rain and snow. In addition, the polyurethane material itself has high elasticity, which can absorb some of the external impact when the pipe bends or shifts, alleviate stress concentration, and further protect the internal structure from damage.

[0029] The metal braided layer 12, located in the middle of the structure, is the mechanical core of the entire braided pipe. This layer is precisely woven from high-strength metal wires, possessing excellent tensile, compressive, and deformation resistance, ensuring structural stability and preventing collapse under high-pressure conditions or complex installation environments. The braided structure makes it more flexible without sacrificing strength when subjected to axial and radial loads, providing a robust and reliable support framework for the entire pipeline.

[0030] As an auxiliary reinforcing layer, the glass fiber layer 13 not only enhances the overall mechanical strength but also possesses excellent thermal insulation properties. Its fiber mesh structure effectively slows down the conduction of heat between pipe walls, preventing external high temperatures from affecting the internal medium or preventing adverse environmental effects from changes in medium temperature. Furthermore, the high strength of this layer also improves the pipe's impact and fatigue resistance, delays material aging, and enhances overall durability.

[0031] The innermost layer 14 is in direct contact with the transported medium and is typically made of a highly corrosion-resistant, smooth-surfaced polymer material, such as polytetrafluoroethylene (PTFE) or polyethylene (PE). This layer not only significantly reduces the frictional resistance of fluid flow and improves transport efficiency, but also effectively resists the erosion of various corrosive media such as acids, alkalis, and salts, ensuring that the pipeline does not leak or contaminate the transported goods during long-term operation.

[0032] The usage and working principle of this device are as follows: The polyurethane layer 11, located on the outermost layer, protects the internal structure from external mechanical damage and environmental corrosion due to its excellent wear resistance, weather resistance, and elasticity; the metal braided layer 12, as the intermediate key layer, provides solid mechanical support for the pipeline with its high strength and excellent compressive strength; the glass fiber layer 13 combines heat insulation and reinforcement properties, reducing heat exchange and improving the overall strength of the pipeline; the innermost inner layer 14 directly contacts the transported medium, and its smooth surface reduces fluid resistance and resists corrosion from the medium. These four layers work together to ensure stable and efficient operation of the braided pipe under various working conditions.

[0033] Two rotating plates 33 drive two hemispheres 32 to rotate relative to each other, thereby enabling flexible adjustment of the connection angle of the first connecting pipe 31. During rotation, the two hemispheres 32 rotate around the central rod 34. Multiple rotations not only improve the stability of the connection but also allow for adjustment of the angle of the first connecting pipe 31 according to actual needs, facilitating pipe connection. Furthermore, the rotating connecting rings 2, which are fixedly connected at both ends of the pipe body 1, further enhance the flexibility of rotation, ensuring good adaptability in practical applications.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A bidirectional rotating twist-free crochet pipe comprising a pipe body (1), characterized in that: The pipe body (1) is rotatably connected to both ends by rotating connecting rings (2), and the pipe body (1) is equipped with rotating mechanisms (3) at both ends. The rotating mechanism (3) includes a central rod (34), and two hemispheres (32) are rotatably connected to the outer surfaces of the two central rods (34). Rotating plates (33) are fixedly connected to the two hemispheres (32) on opposite sides. The two rotating plates (33) are rotatably connected to each other. One end of one hemisphere (32) is fixedly connected to a first connecting pipe (31), and one end of the other hemisphere (32) is fixedly connected to a second connecting pipe (35).

2. A two-way rotating twist-free crochet tube according to claim 1, characterized in that: A rotating connecting ring (2) is fixedly connected to one end of the second connecting pipe (35).

3. A two-way rotating twist-free crochet tube according to claim 1, characterized in that: The two rotating connecting rings (2) are connected to each other by rotation.

4. The bidirectional rotation, no-torque hook tubing as claimed in claim 1, wherein: The inner side of the pipe body (1) is provided with an inner layer (14), and the outer surface of the inner layer (14) is compositely connected with a glass fiber layer (13).

5. A two-way rotating twist-free crochet tube according to claim 4, characterized in that: The outer surface of the glass fiber layer (13) is compositely connected with a metal hook-and-loop layer (12).

6. A two-way rotational twist-free crochet tube according to claim 5, characterized in that: The outer surface of the metal crochet layer (12) is compositely connected with a polyurethane layer (11).