Special hose sheath

Abstract

The utility model discloses a kind of special rubber tube sheaths, belong to rubber tube sheath field, including sheath assembly, the sheath assembly is located at the outside of special rubber tube main body, the outside of special rubber tube main body is connected with fixed assembly, the outer end of fixed assembly is connected with tight assembly, its technical scheme main point is, using the characteristics of shape memory alloy, when rubber tube surface temperature is unusually high, it is predicted that will soon break or leak, shape memory alloy ring will change phase, restore its preset tightening shape, the deformation of shape memory alloy ring will directly drive the contraction of external elastic ring, this process is the automatic response of physics and material characteristics, response speed is extremely fast, can intervene in the initial stage of accident, the contraction of elastic ring and shape memory alloy ring will be like tourniquet, tight special rubber tube main body, greatly reduce even blockage internal medium leakage, prevent accident expansion, gain precious time for subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of hose sheaths, and in particular to a special hose sheath. Background Technology

[0002] Specialty hoses, such as hydraulic hoses, oil hoses, and chemical conveying hoses, are widely used in engineering machinery, petrochemicals, marine engineering, and other fields. These hoses often work under harsh conditions and face problems such as wear, impact, corrosion, ultraviolet aging, and high-temperature baking, which directly affect the service life of the hoses and operational safety. Chinese patent application number CN202221746519.0 discloses a pressure-resistant protective sleeve for a rubber hose. The sleeve is made by embedding a high-pressure resistant binding strap in a high-pressure resistant regulating groove. Pulling the high-pressure resistant binding strap tightly binds the main protective sleeve to the outside of the rubber hose. This makes the rubber hose more flexible while increasing the plastic strength of the outer wall of the hose, effectively preventing the hose from deforming under high temperature and high pressure, ensuring the flow rate of the hose, and improving the service life of the hose. However, most existing special hose sheaths cannot effectively tighten both ends of the hose to reduce leakage when the hose leaks or when the surface temperature rises abnormally and the hose is about to rupture. Therefore, we propose a special hose sheath. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a special hose sheath that utilizes the properties of shape memory alloys. When the surface temperature of the hose rises abnormally, indicating an impending rupture or leak, the shape memory alloy ring undergoes a phase change, restoring its preset tightened shape. The deformation of the shape memory alloy ring directly drives the contraction of the outer elastic ring, which can be made of elastic materials such as fluororubber or silicone rubber. This process is an automatic response based on physical and material properties, requiring no external power, sensors, or manual intervention. It has an extremely fast response speed and can intervene at the initial stage of an accident. The contraction of the elastic ring and the shape memory alloy ring acts like a tourniquet, tightening the special hose body, greatly reducing or even blocking the leakage of the internal medium, preventing the accident from escalating, and buying valuable time for subsequent handling.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A special hose sheath includes a sheath assembly located outside the special hose body. A fixing assembly is connected to the outside of the special hose body, and a tightening assembly is connected to the outer end of the fixing assembly. The tightening assembly includes a steel wire rope, with an elastic ring fixedly connected to the outer end of the steel wire rope. A shape memory alloy ring is movably connected inside the elastic ring. The elastic ring is movably sleeved on the outer wall of the special hose body. The inner diameter of the elastic ring is adapted to the outer diameter of the special hose body in the relaxed state. The steel wire rope has a margin.

[0005] Utilizing the properties of shape memory alloys, when the surface temperature of the hose rises abnormally, indicating an impending rupture or leak, the shape memory alloy ring undergoes a phase change, restoring its preset "tightened" shape. The deformation of the shape memory alloy ring directly drives the contraction of the outer elastic ring, which can be made of elastic materials such as fluororubber or silicone rubber. This process is an automatic response based on physical and material properties, requiring no external power, sensors, or human intervention. It has an extremely fast response speed and can intervene in the initial stage of an accident. The contraction of the elastic ring and the shape memory alloy ring acts like a tourniquet, tightening the special hose body, greatly reducing or even blocking the leakage of the internal medium, preventing the accident from escalating, and buying valuable time for subsequent handling. The wire rope has a margin, ensuring that the tightening assembly does not cause unnecessary restraint and stress to the normal operation of the hose. This margin is only used up and tightening begins in an emergency when the shape memory alloy ring is driven to contract.

[0006] Furthermore, the sheath assembly includes an inner protective layer, which is movably sleeved on the outer wall of the special hose body. A reinforcing layer is fixedly connected to the outer wall of the inner protective layer, and an outer protective layer is fixedly connected to the outer wall of the reinforcing layer. Threaded protruding ribs are fixedly connected to the outer wall of the outer protective layer.

[0007] Furthermore, the inner protective layer is an inner lining made of wear-resistant rubber.

[0008] Furthermore, the reinforcing layer is a non-metallic reinforcing fiber layer woven outside the inner protective layer.

[0009] Furthermore, the outer protective layer is a polymer protective layer covering the outside of the reinforcing layer.

[0010] Furthermore, the fixing component includes a threaded ring 1, which is fixedly connected to the left and right sides of the outer wall of the special hose body, and the inner protective layer is movably sleeved between the two threaded rings 1.

[0011] Furthermore, the external thread of the first threaded ring is connected to a second threaded ring, which is movably disposed outside the body of the special hose.

[0012] Furthermore, the second threaded ring is movably disposed at both ends of the sheath assembly, and the second threaded ring is fixedly connected to the wire rope.

[0013] In summary, this utility model has the following beneficial effects: 1. Utilizing the properties of shape memory alloys, when the surface temperature of the hose rises abnormally, indicating an impending rupture or leak, the shape memory alloy ring undergoes a phase change, restoring its preset tightened shape. The deformation of the shape memory alloy ring directly drives the contraction of the outer elastic ring, which can be made of elastic materials such as fluororubber or silicone rubber. This process is an automatic response based on physical and material properties, requiring no external power, sensors, or manual intervention. It has an extremely fast response speed and can intervene in the initial stage of an accident. The contraction of the elastic ring and the shape memory alloy ring acts like a tourniquet, tightening the special hose body, greatly reducing or even blocking the leakage of the internal medium, preventing the accident from escalating, and buying valuable time for subsequent handling. 2. The wire rope has a margin, which prevents the tightening component from causing unnecessary restraint and stress on the normal operation of the hose. Only in an emergency, when the shape memory alloy ring drives the contraction, will this margin be consumed and tightening begin. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in this embodiment; Figure 2 This is a schematic diagram of the split structure in this embodiment; Figure 3 This is a schematic diagram of the elastic ring cross-section in this embodiment; Figure 4 This is a schematic diagram of the disassembled sheath assembly in this embodiment; Figure 5 This is a structural diagram of the fixed component being separated in this embodiment.

[0015] In the diagram, 1. Sheath assembly; 101. Inner protective layer; 102. Reinforcing layer; 103. Outer protective layer; 104. Threaded raised rib; 2. Special hose body; 3. Fixing assembly; 301. Threaded ring one; 302. Threaded ring two; 4. Fastening assembly; 401. Steel wire rope; 402. Elastic ring; 403. Shape memory alloy ring. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0018] Reference Figures 1-5As shown, a special hose sheath is provided in a preferred embodiment of the present invention, including a sheath assembly 1. The sheath assembly 1 is located outside the special hose body 2. A fixing assembly 3 is connected to the outside of the special hose body 2, and a tightening assembly 4 is connected to the outer end of the fixing assembly 3. The tightening component 4 includes a steel wire rope 401, with an elastic ring 402 fixedly connected to the outer end of the steel wire rope 401. A shape memory alloy ring 403 is movably connected inside the elastic ring 402. The elastic ring 402 is movably sleeved on the outer wall of the special hose body 2. The inner diameter of the elastic ring 402 is adapted to the outer diameter of the special hose body 2 in the relaxed state. The steel wire rope 401 has a margin.

[0019] Utilizing the properties of shape memory alloys, when the surface temperature of the hose rises abnormally, indicating an impending rupture or leak, the shape memory alloy ring 403 undergoes a phase change, restoring its preset "tightened" shape. The deformation of the shape memory alloy ring 403 directly drives the contraction of the outer elastic ring 402. The elastic ring 402 can be made of elastic materials such as fluororubber or silicone rubber. This process is an automatic response based on physical and material properties, requiring no external power, sensors, or manual intervention. It has an extremely fast response speed and can intervene in the initial stage of an accident. The contraction of the elastic ring 402 and the shape memory alloy ring 403 acts like a tourniquet, tightening the special hose body 2, greatly reducing or even blocking the leakage of the internal medium, preventing the accident from escalating, and buying valuable time for subsequent handling. The wire rope 401 has a margin so that the tightening assembly 4 will not cause unnecessary restraint and stress to the normal operation of the hose. Only in an emergency, when the shape memory alloy ring 403 is driven to contract, will this margin be consumed and tightening begin.

[0020] Reference Figures 1-5 As shown, the sheath assembly 1 includes an inner protective layer 101, which is movably sleeved on the outer wall of the special hose body 2. A reinforcing layer 102 is fixedly connected to the outer wall of the inner protective layer 101, and an outer protective layer 103 is fixedly connected to the outer wall of the reinforcing layer 102. Threaded protruding ribs 104 are fixedly connected to the outer wall of the outer protective layer 103.

[0021] Reference Figures 1-5 As shown, the inner protective layer 101 is an inner lining layer made of wear-resistant rubber.

[0022] Reference Figures 1-5 As shown, the reinforcing layer 102 is a non-metallic reinforcing fiber layer woven outside the inner protective layer 101.

[0023] Reference Figures 1-5 As shown, the outer protective layer 103 is a polymer protective layer covering the outside of the reinforcing layer 102.

[0024] The design of the sheath assembly 1 provides multi-layered comprehensive protection. The inner protective layer 101 directly addresses the friction between the hose and the sheath, preventing wear of the sheath due to vibration and displacement, and extending the life of the sheath itself. The reinforcing layer 102 provides key mechanical strength and compressive strength, enabling the sheath not only to withstand external impacts but also to a certain extent to suppress the instantaneous expansion when the hose ruptures. The outer protective layer 103 resists the corrosion of the external environment, such as chemicals, oil, ultraviolet rays, and moisture, ensuring the long-term stability of the internal structure. When the sheath is dragged or rubbed against the surface of an external object, the raised ribs first contact the friction surface. Compared to a smooth surface, the ribs change surface contact into line contact or point contact, significantly reducing the contact area and the frictional force per unit area, thereby greatly slowing down the wear rate of the outer protective layer 103 and extending its service life. Even if the ribs are worn flat, the underlying substrate material remains intact, providing an additional safety margin.

[0025] Reference Figures 1-5 As shown, the fixing component 3 includes a threaded ring 301, which is fixedly connected to the left and right sides of the outer wall of the special hose body 2, and the inner protective layer 101 is movably sleeved between the two threaded rings 301.

[0026] Reference Figures 1-5 As shown, the external thread of threaded ring 301 is connected to threaded ring 302, which is movably disposed outside the special hose body 2.

[0027] Reference Figures 1-5 As shown, threaded ring 2 302 is movably disposed at both ends of the sheath assembly 1, and threaded ring 2 302 is fixedly connected to wire rope 401.

[0028] The sheath assembly 1 is movably sleeved between two fixed rings and axially fixed by the threaded ring 302. This structure means that when the sheath is worn or damaged, the threaded ring 302 can be easily unscrewed to replace the new sheath assembly 1 without replacing the entire hose or a complex fixing structure, which greatly reduces maintenance costs and time. The threaded ring 302 also serves as the fixing base for the tightening assembly 4, ensuring that the tightening force of the wire rope 401 can be stably transmitted to the hose body, forming a complete and reliable force transmission path.

[0029] Specific implementation process: Utilizing the properties of shape memory alloys, when the surface temperature of the hose rises abnormally, indicating an impending rupture or leak, the shape memory alloy ring 403 undergoes a phase change, restoring its preset "tightened" shape. The deformation of the shape memory alloy ring 403 directly drives the contraction of the outer elastic ring 402. The elastic ring 402 can be made of elastic materials such as fluororubber or silicone rubber. This process is an automatic response based on physical and material properties, requiring no external power, sensors, or manual intervention. The response speed is extremely fast, allowing intervention at the initial stage of an accident. The contraction of the elastic ring 402 and the shape memory alloy ring 403 acts like a tourniquet, tightening the special hose body 2, greatly reducing or even blocking the leakage of the internal medium, preventing the accident from escalating, and buying valuable time for subsequent handling. The wire rope 401 has a margin so that the tightening component 4 will not cause unnecessary restraint and stress to the normal operation of the hose. Only in an emergency, when the shape memory alloy ring 403 is driven to contract, will this margin be consumed and tightening begin. The sheath assembly 1 is movably sleeved between two fixed rings and is axially fixed by the threaded ring 302. This structure means that when the sheath is worn or damaged, the threaded ring 302 can be easily unscrewed to replace the new sheath assembly 1 without replacing the entire hose or a complex fixing structure, which greatly reduces maintenance costs and time. The threaded ring 302 also serves as the fixing base for the tightening assembly 4, ensuring that the tightening force of the wire rope 401 can be stably transmitted to the hose body, forming a complete and reliable force transmission path. The design of the sheath assembly 1 provides multi-layered comprehensive protection. The inner protective layer 101 directly addresses the friction between the hose and the sheath, preventing wear of the sheath due to vibration and displacement, and extending the life of the sheath itself. The reinforcing layer 102 provides key mechanical strength and compressive strength, enabling the sheath not only to withstand external impacts but also to a certain extent to suppress the instantaneous expansion when the hose ruptures. The outer protective layer 103 resists the corrosion of the external environment, such as chemicals, oil, ultraviolet rays, and moisture, ensuring the long-term stability of the internal structure. When the sheath is dragged or rubbed against the surface of an external object, the raised ribs first contact the friction surface. Compared to a smooth surface, the ribs change surface contact into line contact or point contact, significantly reducing the contact area and the frictional force per unit area, thereby greatly slowing down the wear rate of the outer protective layer 103 and extending its service life. Even if the ribs are worn flat, the underlying substrate material remains intact, providing an additional safety margin.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A special hose sheath, characterized in that: Includes a sheath assembly (1), which is located outside the special hose body (2), and a fixing assembly (3) is connected to the outside of the special hose body (2), and a tightening assembly (4) is connected to the outer end of the fixing assembly (3). The fastening assembly (4) includes a steel wire rope (401), with an elastic ring (402) fixedly connected to the outer end of the steel wire rope (401). A shape memory alloy ring (403) is movably connected inside the elastic ring (402). The elastic ring (402) is movably sleeved on the outer wall of the special hose body (2). The inner diameter of the elastic ring (402) is adapted to the outer diameter of the special hose body (2) in the relaxed state. The steel wire rope (401) has a margin.

2. The special hose sheath according to claim 1, characterized in that: The sheath assembly (1) includes an inner protective layer (101), which is movably sleeved on the outer wall of the special hose body (2). The outer wall of the inner protective layer (101) is fixedly connected to a reinforcing layer (102), the outer wall of the reinforcing layer (102) is fixedly connected to an outer protective layer (103), and the outer wall of the outer protective layer (103) is fixedly connected to a threaded protruding rib (104).

3. A special hose sheath according to claim 2, characterized in that: The inner protective layer (101) is an inner lining made of wear-resistant rubber.

4. A special hose sheath according to claim 2, characterized in that: The reinforcing layer (102) is a non-metallic reinforcing fiber layer woven outside the inner protective layer (101).

5. A special hose sheath according to claim 2, characterized in that: The outer protective layer (103) is a polymer protective layer covering the outside of the reinforcing layer (102).

6. A special hose sheath according to claim 2, characterized in that: The fixing component (3) includes a threaded ring (301), which is fixedly connected to the left and right sides of the outer wall of the special hose body (2), and the inner protective layer (101) is movably sleeved between the two threaded rings (301).

7. A special hose sheath according to claim 6, characterized in that: The external thread of the threaded ring one (301) is connected to the threaded ring two (302), which is movably disposed outside the special hose body (2).

8. A special hose sheath according to claim 7, characterized in that: The threaded ring 2 (302) is movably disposed at both ends of the sheath assembly (1), and the threaded ring 2 (302) is fixedly connected to the wire rope (401).

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