Leakage-proof braided sheath tube with multi-layer structure

Abstract

The utility model discloses a leakproof braided sheath tube with a multilayer structure, which comprises a sheath tube component, joint components for connection are arranged at two ends of the sheath tube component, and a rotating component matched with the joint components is arranged on the sheath tube component. The sheath tube assembly comprises an inner base layer, a middle woven layer and an outer protective layer which are sequentially arranged from inside to outside. The sheath tube assembly is composed of the inner base layer, the middle braid layer and the outer protective layer, the inner base layer is reinforced through the middle braid layer, the middle braid layer is protected through the outer protective layer, and the abrasion resistance, corrosion resistance and high temperature resistance of the middle braid layer can be improved; the inner base layer is composed of the inner rubber layer, the outer rubber layer and the reinforcing layer, the reinforcing layer has the advantages of being high in strength, not prone to breakage, smooth in surface, resistant to acid and alkali, resistant to UV radiation and resistant to weather aging, the reinforcing layer can play a role in reinforcing the inner base layer, and then the phenomenon that the middle woven layer is abraded and broken and punctures the inner base layer is effectively avoided; and liquid or gas leakage is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of braided sheaths, and particularly relates to a multi-layer structure leak-proof braided sheath. Background Technique

[0002] A braided sheath refers to a braided hose, which is a tubular structure and has extensive and profound applications in various industries. Its main use is to transport liquids or gases.

[0003] The utility model patent document with the publication number CN219954538U discloses a stainless steel braided hose. Through the setting of the first connecting pipe, it is convenient to install the extension plate. Through the setting of the extension plate, it is convenient to open a sliding groove. Through the setting of the sliding groove, it is convenient for the free rotation of the snap ring. Through the setting of the snap ring, the position of the connecting nut can be fixed to prevent it from falling off. Through the setting of the connecting nut, when the user connects to an external pipeline, only need to turn the connecting nut to install the pipeline, which greatly enhances the convenience of installation. Through the setting of the first fixing pipe, the installation strength of the braided pipe can be enhanced. Through the setting of the silicone tube, the braided pipe can maintain softness and will not leak water. Through the setting of the sealing gasket, the sealing performance of the overall pipeline can be enhanced. Through the setting of the second connecting pipe, it is convenient to install the mounting plate. Through the setting of the mounting plate, it is convenient to open positioning holes. Through the setting of the positioning holes, the installation strength of the external connecting pipe can be enhanced. Through the setting of the threaded pipe, the sealing performance of the installation can be further enhanced.

[0004] Although the above-mentioned stainless steel braided hose can solve corresponding technical problems, through the setting of the silicone tube, the braided pipe can maintain softness and will not show the phenomenon of liquid or gas leakage. However, its silicone tube structure is relatively simple and prone to bursting, which is not conducive to high-pressure transmission systems. And the braided pipe is prone to wear and breakage after long-term use, resulting in the silicone tube being easily punctured and leaking, thus shortening the service life of the stainless steel braided hose.

[0005] Therefore, a multi-layer structure leak-proof braided sheath is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-layer structure leak-proof braided sheath to solve the problems raised in the above background technique.

[0007] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0008] A multi-layer structure leak-proof braided sheath, comprising:

[0009] A sheath assembly, with joint assemblies for connection provided at both ends thereof, and a rotation assembly for cooperating with the joint assemblies provided on the sheath assembly;

[0010] Among them, the sheath tube assembly includes an inner base layer, a middle braided layer, and an outer protective layer arranged in sequence from inside to outside;

[0011] The inner base layer includes an inner rubber layer and an outer rubber layer. A reinforcing layer is provided between the inner rubber layer and the outer rubber layer, and the outer rubber layer is arranged on the inner wall surface of the middle braided layer.

[0012] As a preferred technical solution, the reinforcing layer includes a plurality of first support lines and second support lines. The plurality of first support lines and second support lines are intertwined with each other to form a grid-like structure, and both the first support lines and the second support lines are fixedly connected between the outer surface of the inner rubber layer and the inner wall surface of the outer rubber layer.

[0013] As a preferred technical solution, both the first support line and the second support line are made of polyester threads.

[0014] As a preferred technical solution, the inner rubber layer is an outer EPDM rubber layer, and the outer rubber layer is an inner EPDM rubber layer.

[0015] As a preferred technical solution, the middle braided layer includes a plurality of first strands and second strands. The plurality of first strands and second strands are intertwined with each other, and the first strands and the second strands are jointly sleeved on the outer surface of the outer rubber layer.

[0016] As a preferred technical solution, both the first strand and the second strand are precisely braided by at least eight steel wires, and the steel wires are 304 stainless steel wires.

[0017] As a preferred technical solution, the surface of the steel wire contacts the inner wall surface of the outer protective layer, and the outer protective layer is a polytetrafluoroethylene layer.

[0018] As a preferred technical solution, the joint assembly includes a connecting pipe fixedly connected to the outer surface of the outer protective layer, and a nut is rotatably connected to the surface of the connecting pipe.

[0019] As a preferred technical solution, a sealing ring gasket is embedded on the inner wall surface of the nut, and one side of the sealing ring gasket contacts the connecting pipe.

[0020] As a preferred technical solution, the rotation assembly includes an inner hexagonal collar adapted to the nut. The inner hexagonal collar is sleeved on the surface of the outer protective layer, and two symmetric finger handles are fixedly connected to the surface of the inner hexagonal collar.

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

[0022] In this application, a sheath tube assembly is composed of a multi-layer structure including an inner base layer, a middle braided layer, and an outer protective layer. The middle braided layer strengthens the inner base layer, and the outer protective layer protects the middle braided layer, which helps to improve the wear resistance, corrosion resistance, and high-temperature resistance of the middle braided layer. The inner base layer is composed of a multi-layer structure including an inner rubber layer, an outer rubber layer, and a reinforcing layer. The reinforcing layer has the characteristics of high strength, not easy to break, smooth surface, acid and alkali resistance, UV radiation resistance, and weather aging resistance, and can strengthen the inner base layer. Furthermore, it can effectively prevent the phenomenon that the middle braided layer wears and breaks and pierces the inner base layer, and effectively prevent liquid or gas leakage, thereby helping to extend the service life of the sheath tube assembly and improve the performance and reliability of the sheath tube assembly, and it is applicable to high-pressure transmission systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic structural diagram of a multi-layer structure leak-proof braided sheath tube of the present utility model;

[0024] Figure 2 FIG. is a schematic cross-sectional structural diagram of a sheath tube assembly of a multi-layer structure leak-proof braided sheath tube of the present utility model;

[0025] Figure 3 FIG. is a schematic cross-sectional structural diagram of an inner base layer of a multi-layer structure leak-proof braided sheath tube of the present utility model;

[0026] Figure 4 FIG. is a partial structural schematic diagram of a reinforcing layer of a multi-layer structure leak-proof braided sheath tube of the present utility model;

[0027] Figure 5 FIG. is a partial structural schematic diagram of a middle braided layer of a multi-layer structure leak-proof braided sheath tube of the present utility model;

[0028] Figure 6 FIG. is a schematic diagram of a steel wire structure of a multi-layer structure leak-proof braided sheath tube of the present utility model.

[0029] In the figure: 100, sheath tube assembly; 110, inner base layer; 111, inner rubber layer; 112, outer rubber layer; 113, reinforcing layer; 1131, first support wire; 1132, second support wire; 120, middle braided layer; 121, first strand; 122, second strand; 1211, steel wire; 130, outer protective layer; 200, joint assembly; 210, connecting pipe; 220, nut; 230, sealing ring gasket; 300, rotating assembly; 310, inner hexagonal collar; 320, finger handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0031] Please refer to Figures 1-6 , an embodiment of the present utility model provides a multi-layer structure leak-proof braided sheath tube, including: a sheath tube assembly 100, both ends of which are provided with joint assemblies 200 for connection, and a rotation assembly 300 for cooperating with the joint assemblies 200 is provided on the sheath tube assembly 100; the sheath tube assembly 100 includes an inner base layer 110, a middle braided layer 120, and an outer protective layer 130 which are arranged in sequence from inside to outside; the inner base layer 110 includes an inner rubber layer 111 and an outer rubber layer 112, a reinforcing layer 113 is arranged between the inner rubber layer 111 and the outer rubber layer 112, and the outer rubber layer 112 is arranged on the inner wall surface of the middle braided layer 120.

[0032] Among them, the reinforcing layer 113 includes a plurality of first support lines 1131 and second support lines 1132. The plurality of first support lines 1131 and the second support lines 1132 are mutually interwoven to form a grid-like structure. Both the first support line 1131 and the second support line 1132 are fixedly connected between the outer surface of the inner rubber layer 111 and the inner wall surface of the outer rubber layer 112. The reinforcing layer 113 can strengthen the inner base layer 110.

[0033] Among them, both the first support line 1131 and the second support line 1132 are made of polyester threads. The polyester threads have the characteristics of high strength, not easy to break, smooth surface, acid and alkali resistance, UV radiation resistance, and weather aging resistance, and can improve the strength of the inner base layer 110 while ensuring the toughness of the inner base layer 110.

[0034] Among them, the inner rubber layer 111 is an outer EPDM rubber layer, and the outer rubber layer 112 is an inner EPDM rubber layer. EPDM rubber has the advantages of environmental protection, no peculiar smell, high temperature resistance, oxidation resistance, ozone resistance, and erosion resistance, and can effectively prevent tube explosion.

[0035] Among them, the middle braided layer 120 includes a plurality of first strands 121 and second strands 122. The plurality of first strands 121 and the second strands 122 are mutually interwoven. The first strands 121 and the second strands 122 are jointly sleeved on the outer surface of the outer rubber layer 112. The middle braided layer 120 can further strengthen the inner base layer 110 and avoid the phenomenon that the inner base layer 110 is damaged under the action of external shear force.

[0036] Among them, both the first wire strand 121 and the second wire strand 122 are precisely woven by at least eight steel wires 1211. The steel wires 1211 are 304 stainless steel wires, so that the middle braided layer 120 has the advantages of no wire skipping, anti-bending and corrosion resistance, and further makes the sheath tube assembly 100 have good toughness and not afraid of bending.

[0037] Among them, the surface of the steel wire 1211 is in contact with the inner wall surface of the outer protective layer 130. The outer protective layer 130 is a polytetrafluoroethylene layer. The outer protective layer 130 can improve the wear resistance, corrosion resistance and high temperature resistance of the middle braided layer 120, which helps to extend the service life of the sheath tube assembly 100 and improve the performance and reliability of the sheath tube assembly 100.

[0038] Among them, the joint assembly 200 includes a connecting pipe 210 fixedly connected to the outer surface of the outer protective layer 130. A nut 220 is rotatably connected to the surface of the connecting pipe 210. By docking the nut 220 to the end of the outer connecting pipe and rotating the nut 220, the nut 220 can be connected to the outer connecting pipe by using threads to achieve the assembly function of the sheath tube assembly 100.

[0039] Among them, a sealing ring gasket 230 is embedded in the inner wall surface of the nut 220. One side of the sealing ring gasket 230 is in contact with the connecting pipe 210. The sealing ring gasket 230 can improve the sealing performance between the sheath tube assembly 100 and the outer connecting pipe and avoid the phenomenon of liquid or gas leakage.

[0040] Among them, the rotating assembly 300 includes an inner hexagonal sleeve 310 adapted to the nut 220. The inner hexagonal sleeve 310 is sleeved on the surface of the outer protective layer 130. Two symmetric finger handles 320 are fixedly connected to the surface of the inner hexagonal sleeve 310. The rotating assembly 300 facilitates the user to rotate the nut 220.

[0041] The working principle of the present utility model is as follows: The nut 220 is docked to the end of the outer connecting pipe, and then the hexagonal socket ring 310 is moved towards the nut 220 so that the hexagonal socket ring 310 is sleeved on the surface of the nut 220. The hexagonal socket ring 310 is rotated by using the finger handle 320, and the hexagonal socket ring 310 drives the sealing ring gasket 230 to rotate, and then the nut 220 can be connected to the outer connecting pipe by using the thread, thereby completing the assembly operation of the sheath assembly 100; The sheath assembly 100 is composed of multiple layers of structures including the inner base layer 110, the middle braided layer 120 and the outer protective layer 130. The middle braided layer 120 plays a strengthening role for the inner base layer 110, and the outer protective layer 130 plays a protective role for the middle braided layer 120, which helps to improve the wear resistance, corrosion resistance and high temperature resistance of the middle braided layer 120; The inner base layer 110 is composed of multiple layers of structures including the inner rubber layer 111, the outer rubber layer 112 and the strengthening layer 113. The strengthening layer 113 has the characteristics of high strength, not easy to break, smooth surface, acid and alkali resistance, anti-UV radiation and weather aging resistance, and can play a strengthening role for the inner base layer 110, thereby effectively avoiding the phenomenon that the inner base layer 110 is punctured due to wear and fracture of the middle braided layer 120, effectively preventing liquid or gas leakage, and thus helping to extend the service life of the sheath assembly 100 and improve the performance and reliability of the sheath assembly 100, and is applicable to high-pressure transmission systems.

[0042] Parts not involved in the present utility model are the same as or can be implemented by using the prior art. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layered anti-leakage braided sheath tube, characterized in that: include: A sheath tube assembly (100) is provided at both ends with a connector assembly (200) for connection, and the sheath tube assembly (100) is provided with a rotating assembly (300) for use in conjunction with the connector assembly (200); The sheath tube assembly (100) comprises an inner base layer (110), a middle braided layer (120) and an outer protective layer (130) which are arranged in sequence from the inside to the outside; The inner base layer (110) comprises an inner rubber layer (111) and an outer rubber layer (112), a reinforcement layer (113) is provided between the inner rubber layer (111) and the outer rubber layer (112), and the outer rubber layer (112) is provided on the inner wall surface of the middle braided layer (120).

2. The multi-layer anti-leakage braided sheath according to claim 1, characterized in that: The reinforcing layer (113) comprises a plurality of first supporting wires (1131) and second supporting wires (1132), wherein the plurality of first supporting wires (1131) and second supporting wires (1132) are interlaced and woven to form a grid structure, and the first supporting wires (1131) and second supporting wires (1132) are both fixedly connected between the outer surface of the inner rubber layer (111) and the inner wall surface of the outer rubber layer (112).

3. The multi-layer anti-leakage braided sheath according to claim 2, characterized in that: The first support line (1131) and the second support line (1132) are both made of polyester line.

4. The multi-layer anti-leakage braided sheath according to claim 3, characterized in that: The inner rubber layer (111) is an outer EPDM rubber layer, and the outer rubber layer (112) is an inner EPDM rubber layer.

5. The multi-layer anti-leakage braided sheath according to claim 4, characterized in that: The middle braided layer (120) comprises a plurality of first strands (121) and second strands (122), the plurality of first strands (121) and second strands (122) being interlaced and braided with each other, and the first strands (121) and the second strands (122) being jointly sleeved on the outer surface of the outer rubber layer (112).

6. The multi-layer anti-leakage braided sheath according to claim 5, characterized in that: The first strand (121) and the second strand (122) are both precisely woven from at least eight steel wires (1211), and the steel wires (1211) are 304 stainless steel wires.

7. The multi-layer anti-leakage braided sheath according to claim 6, characterized in that: The surface of the steel wire (1211) contacts the inner wall surface of the outer protective layer (130), and the outer protective layer (130) is a polytetrafluoroethylene layer.

8. The multi-layer anti-leakage braided sheath according to claim 7, characterized in that: The joint assembly (200) comprises a connecting pipe (210) fixedly connected to the outer surface of the outer protective layer (130), and a nut (220) is rotatably connected to the surface of the connecting pipe (210).

9. The multi-layer anti-leakage braided sheath according to claim 8, characterized in that: A sealing ring gasket (230) is embedded in the inner wall surface of the nut (220), and one side of the sealing ring gasket (230) is in contact with the connecting pipe (210).

10. The multi-layer anti-leakage braided sheath according to claim 9, characterized in that: The rotating assembly (300) comprises an inner hexagonal collar (310) adapted to the nut (220), the inner hexagonal collar (310) being sleeved on the surface of the outer protective layer (130), and two symmetrical finger handles (320) being fixedly connected to the surface of the inner hexagonal collar (310).

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