Low-resistance hose for efficient conveying of coal mine pipeline

By adopting an internal corrugated structure, a spiral steel wire skeleton, and a wear-resistant inner liner in the coal mine pipeline hose, the problem of high friction during the transport of media in existing hoses has been solved, achieving low-resistance transport and efficient installation, adapting to complex pipeline layouts, and reducing equipment energy consumption and operating costs.

CN224150341UActive Publication Date: 2026-04-21HENAN CHINA CARBON & PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN CHINA CARBON & PLASTIC PROD CO LTD
Filing Date
2025-06-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing coal mine pipeline hoses experience high internal flow friction during medium transportation, leading to increased equipment power and higher operating costs.

Method used

A low-resistance flexible hose for efficient coal mine pipeline transportation was designed. It adopts an internal corrugated structure, a spiral steel wire skeleton and a wear-resistant inner liner, combined with threaded connection and positioning structure to improve flexibility and rigidity and reduce frictional resistance.

Benefits of technology

It features convenient installation and disassembly, good sealing, adaptability to complex pipeline layouts, reduced transmission resistance, and improved equipment efficiency and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a low-resistance hose for efficient conveying of a coal mine pipeline, and relates to the technical field of hoses for coal mine pipelines, the low-resistance hose for efficient conveying of the coal mine pipeline comprises a pipe body, inner ripples are arranged on the inner side of the pipe body, a threaded edge is arranged on one side of the outer wall of the pipe body, and the inner ripples are arranged on the other side of the outer wall of the pipe body. The outer ring of the threaded edge is sleeved with a threaded sleeve, one side of the threaded sleeve is connected with a positioning disc, the outer wall of the positioning disc is connected with a positioning head, the side wall of the positioning head is provided with a first threaded hole, the other end of the pipe body is connected with a connecting pipe, and the outer ring of the connecting pipe is provided with outer ripples. The outer ring of the outer corrugation is sleeved with a corrugated pipe sleeve, one side of the corrugated pipe sleeve is connected with a mounting disc, and a second threaded hole is formed in the outer wall of the mounting disc. The flexible pipe has the advantages of being convenient to assemble and disassemble, good in sealing performance and resistance, excellent in flexibility and rigidity and capable of adapting to complex pipeline layout.
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Description

Technical Field

[0001] This utility model relates to the technical field of flexible hoses for coal mine pipelines, specifically a low-resistance flexible hose for efficient coal mine pipeline transportation. Background Technology

[0002] Coal mine conveying hoses are flexible pipelines used in underground coal mines and related work environments to transport various media. They are commonly used to transport mineral oil, water-based hydraulic oil, water, gas, coal slurry, etc. They can be classified according to the transported medium, such as high-pressure water pumping pipes for coal mines, gas drainage rubber hoses, and metal hoses for coal slurry transport. They can also be classified according to structural characteristics, such as steel wire braided hoses and steel wire spiral hoses. Existing hoses experience high internal flow friction during media transport, which increases equipment power consumption, leading to increased energy consumption and operating costs. Therefore, this application proposes a low-resistance hose for efficient coal mine pipeline transport. Utility Model Content

[0003] This utility model provides a low-resistance flexible hose for efficient transportation in coal mine pipelines. It features convenient installation and disassembly, as well as good sealing and low resistance. At the same time, the hose has excellent flexibility and rigidity, which can adapt to complex pipeline layouts. It solves the problem that existing hoses have high internal flow friction during the transportation of media, which increases equipment power, energy consumption, and operating costs.

[0004] To achieve the goal of reducing the resistance of the hose during transport, this utility model provides the following technical solution: a low-resistance hose for efficient transport in coal mine pipelines, comprising a pipe body, an inner corrugation on the inner side of the pipe body, a threaded edge on one side of the outer wall of the pipe body, a threaded sleeve on the outer ring of the threaded edge, a positioning disc connected to one side of the threaded sleeve, a positioning head connected to the outer wall of the positioning disc, and a threaded hole on the side wall of the positioning head.

[0005] As a preferred embodiment of this utility model, the other end of the tube body is connected to a connecting pipe, the outer ring of the connecting pipe is provided with an outer corrugation, and the outer ring of the outer corrugation is fitted with a corrugated tube sleeve.

[0006] As a preferred embodiment of this utility model, a mounting plate is connected to one side of the corrugated pipe sleeve, and a threaded hole is provided on the outer wall of the mounting plate, with a bolt fitted on the inner ring of the threaded hole.

[0007] As a preferred embodiment of this utility model, a positioning groove is provided on one side of the mounting plate, and a snap-fit ​​groove is provided on the side of the positioning groove.

[0008] As a preferred embodiment of this utility model, the tube body is provided with a spiral steel wire skeleton, which is a continuous embedded structure.

[0009] As a preferred embodiment of this utility model, the pipe body includes a first pore, and a wear-resistant inner liner is provided on the inner side of the pipe body. The wear-resistant inner liner includes a second pore, and the diameter of the first pore is larger than the diameter of the second pore.

[0010] As a preferred embodiment of this utility model, the outer corrugation includes a third pore, the diameter of which is larger than that of the second pore.

[0011] Compared with the prior art, this utility model provides a low-resistance flexible hose for efficient coal mine pipeline transportation, which has the following beneficial effects:

[0012] 1. This is a low-resistance flexible hose for efficient transportation in coal mine pipelines. The hose is easy to install and disassemble, and has good sealing and low resistance. At the same time, the hose has excellent flexibility and rigidity and can adapt to complex pipeline layouts.

[0013] 2. This is a low-resistance flexible hose for efficient transportation in coal mine pipelines. The hose is designed with a spiral steel wire skeleton and a wear-resistant inner liner. The spiral steel wire skeleton adopts a continuous embedded design, which improves the bending performance of the hose, reduces the bending radius, makes it suitable for narrow spaces, and saves space. The wear-resistant inner liner can improve the wear resistance of the hose body, increase its service life, and also reduce resistance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a low-resistance flexible hose for efficient coal mine pipeline transportation according to the present invention.

[0015] Figure 2 This is a schematic diagram of the mounting plate structure of a low-resistance flexible hose for high-efficiency transportation in coal mine pipelines according to this utility model.

[0016] Figure 3 This is a schematic diagram of the internal connection structure of a low-resistance flexible hose for efficient coal mine pipeline transportation according to the present invention.

[0017] Figure 4 for Figure 1 A magnified structural diagram of point A.

[0018] In the diagram: 1. Pipe body; 2. Threaded edge; 3. Threaded sleeve; 4. Positioning plate; 5. Positioning head; 6. Threaded hole one; 7. Inner corrugation; 8. Connecting pipe; 9. Corrugated pipe sleeve; 10. Mounting plate; 11. Outer corrugation; 12. Bolt; 13. Positioning groove; 14. Snap-fit ​​groove; 15. Threaded hole two; 16. Spiral steel wire skeleton; 17. Hole one; 18. Wear-resistant inner lining pipe; 19. Hole two; 20. Hole three. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model discloses a low-resistance flexible hose for efficient transportation in coal mine pipelines, including a pipe body 1, an inner corrugation 7 on the inner side of the pipe body 1, a threaded edge 2 on one side of the outer wall of the pipe body 1, a threaded sleeve 3 on the outer ring of the threaded edge 2, a positioning disc 4 connected to one side of the threaded sleeve 3, a positioning head 5 connected to the outer wall of the positioning disc 4, and a threaded hole 6 on the side wall of the positioning head 5.

[0021] Specifically, the inner corrugation 7 is used for the connection between multiple pipe bodies 1, the threaded sleeve 3 is screwed onto the outer ring of the threaded edge 2 for easy installation and disassembly, the positioning plate 4 is welded to the threaded sleeve 3, the positioning head 5 is welded to the positioning plate 4, there are four in total, and the threaded hole 6 is opened on one side of the positioning head 5 for easy installation.

[0022] In this embodiment, the other end of the pipe body 1 is connected to a connecting pipe 8, the outer ring of the connecting pipe 8 is provided with an outer corrugation 11, and the outer ring of the outer corrugation 11 is fitted with a corrugated pipe sleeve 9.

[0023] Specifically, the connecting pipe 8 is used to connect multiple pipe bodies 1, the outer corrugation 11 is used to seal the inner corrugation 7, and the corrugated pipe sleeve 9 is used to seal the corrugated pipe sleeve 9.

[0024] In this embodiment, a mounting plate 10 is connected to one side of the corrugated pipe sleeve 9. A threaded hole 15 is provided on the outer wall of the mounting plate 10, and a bolt 12 is fitted on the inner ring of the threaded hole 15.

[0025] Specifically, the mounting plate 10 and the corrugated sleeve 9 are welded together, the second threaded hole 15 and the first threaded hole 6 are matched, and the bolt 12 is screwed into the inner ring of the second threaded hole 15 and the first threaded hole 6 for fixing.

[0026] In this embodiment, a positioning groove 13 is provided on one side of the mounting plate 10, and a snap-fit ​​groove 14 is provided on the side of the positioning groove 13.

[0027] Specifically, the positioning groove 13 fits into the positioning disk 4 for embedding and positioning, and the snap-fit ​​groove 14 fits into the positioning head 5 for limiting and fixing.

[0028] In this embodiment, a spiral steel wire skeleton 16 is provided inside the tube body 1, and the spiral steel wire skeleton 16 is a continuous embedded structure.

[0029] Specifically, the spiral steel wire skeleton 16 is set in the inner layer of the tube body 1 to improve flexibility and rigidity.

[0030] In this embodiment, the pipe body 1 includes a first pore 17, and a wear-resistant inner liner 18 is provided on the inner side of the pipe body 1. The wear-resistant inner liner 18 includes a second pore 19, and the diameter of the first pore 17 is larger than the diameter of the second pore 19.

[0031] Specifically, the pore diameter of pore one 17 is larger than that of pore two 19 to avoid internal blockage of the wear-resistant inner liner tube 18.

[0032] In this embodiment, the outer corrugation 11 includes a third pore 20, the diameter of which is larger than that of the second pore 19.

[0033] Specifically, the diameter of pore 3 20 is larger than that of pore 2 19, which facilitates the transportation of coal from the mine into the spliced ​​pipe body 1.

[0034] The working principle and usage process of this utility model are as follows: When using this hose, firstly, the hose body 1 is spliced ​​and installed according to the required length. During this process, the threaded sleeve 3 and the corrugated sleeve 9 are rotated and moved inward. Then, the outer corrugation 11 of the hose body 1 is connected to the inner corrugation 7 of the hose body 1 to be spliced. After the connection is completed, the threaded sleeve 3 and the corrugated sleeve 9 are rotated outward and outward. Then, the positioning plate 4 and the positioning head 5 are engaged and fitted according to the opening of the mounting plate 10, keeping the positioning plate 4 engaged in the positioning groove 13 and the positioning head 5 engaged in the engagement groove 14. Finally, the bolt 12 is tightened into the threaded hole 15 and the threaded hole 6 for fixation.

[0035] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-resistance hose for efficient pipeline transportation of coal mines, comprising a pipe body (1), characterized in that: The inner side of the tube body (1) is provided with inner corrugations (7), and one side of the outer wall of the tube body (1) is provided with a threaded edge (2). The outer ring of the threaded edge (2) is fitted with a threaded sleeve (3). One side of the threaded sleeve (3) is connected to a positioning plate (4). The outer wall of the positioning plate (4) is connected to a positioning head (5). The side wall of the positioning head (5) is provided with a threaded hole (6).

2. A low resistance hose for efficient conveying of coal mine pipeline according to claim 1, characterized in that: The other end of the tube body (1) is connected to a connecting pipe (8), and the outer ring of the connecting pipe (8) is provided with an outer corrugation (11), and the outer ring of the outer corrugation (11) is fitted with a corrugated sleeve (9).

3. A low resistance hose for high efficiency conveying of coal mine pipeline according to claim 2, characterized in that: The corrugated sleeve (9) is connected to a mounting plate (10) on one side. The outer wall of the mounting plate (10) is provided with a threaded hole (15), and a bolt (12) is fitted on the inner ring of the threaded hole (15).

4. A low resistance hose for high efficiency conveying of coal mine pipeline according to claim 3, characterized in that: The mounting plate (10) has a positioning groove (13) on one side, and a snap-fit ​​groove (14) is provided on the side of the positioning groove (13).

5. A low resistance hose for high efficiency conveying of coal mine pipeline according to claim 1, characterized in that: The tube body (1) is provided with a spiral steel wire skeleton (16) inside, and the spiral steel wire skeleton (16) is a continuous embedded structure.

6. A low resistance hose for high efficiency conveying of coal mine pipeline according to claim 1, characterized in that: The tube body (1) includes a first pore (17), and a wear-resistant inner liner (18) is provided on the inner side of the tube body (1). The wear-resistant inner liner (18) includes a second pore (19), and the diameter of the first pore (17) is larger than the diameter of the second pore (19).

7. A low resistance hose for high efficiency conveying of coal mine pipes according to claim 2, characterized in that: The outer corrugation (11) includes a third pore (20), the diameter of which is larger than that of the second pore (19).