Anti-bending plastic-coated metal hose

Abstract

The utility model discloses an anti-bending plastic-coated metal hose, and relates to the technical field of plastic-coated metal hoses, the anti-bending plastic-coated metal hose comprises an inner pipe and further comprises an anti-bending mechanism arranged on the surface of the inner pipe, and the anti-bending mechanism comprises glass fibers and a metal mesh wire layer; the connector is arranged on the back of the inner pipe. Due to the arrangement of the anti-bending mechanism, during use, the glass fiber and the metal mesh wire layer are respectively mounted on the surface of the inner pipe, and the glass fiber is tightly attached to the outer wall of the inner pipe, so that primary anti-stretching and anti-bending support is provided for the inner pipe by utilizing the characteristics of high strength and high modulus of the glass fiber; and the metal mesh wire layer is laid outside the glass fibers and formed by weaving high-strength metal wires, the glass fibers and the inner pipe are stabilized and protected, stress can be effectively dispersed through matched use of the glass fibers and the metal mesh wire layer, and the situation that the inner pipe deforms due to too large local stress is avoided.

Description

Technical Field

[0001] This utility model relates to the field of metal-coated flexible hose technology, specifically a metal-coated flexible hose that is resistant to bending. Background Technology

[0002] Metal-coated flexible hoses, as a multifunctional tubular material, have extremely wide applications in modern industry and daily life. In the industrial sector, they are extensively used in various types of machinery and equipment. For example, in the automotive manufacturing industry, metal-coated flexible hoses protect various electrical wires and cables in the engine compartment from high temperatures, oil contamination, and mechanical damage, ensuring the stable operation of the vehicle's electrical system. In the aerospace field, metal-coated flexible hoses, with their good flexibility and certain protective properties, are indispensable components for protecting the wiring of precision electronic equipment in aircraft and for the transportation of fluids such as fuel and hydraulic fluids. In the petrochemical industry, they are used to transport corrosive chemicals and high-temperature, high-pressure fluids, ensuring the continuity and safety of production processes. In the construction field, metal-coated flexible hoses are commonly used in building plumbing and electrical installations. They protect electrical wires and cables from damage when running through walls, floors, and other structures. They are also used in water supply and drainage systems where flexible connections are required, such as the connection between sanitary ware and pipes, ensuring flexibility while preventing pipe breakage due to vibration or displacement. Metal-coated flexible hoses are also ubiquitous in daily life. For example, metal-coated flexible hoses are used for gas pipe connections in home kitchens and water inlet and drainage pipes for washing machines, providing convenience and safety for people's lives.

[0003] However, in practical use, metal-coated flexible hoses often need to be bent to adapt to different installation and usage scenarios. However, the internal structure of ordinary metal-coated flexible hoses is easily damaged under frequent or significant bending. The metal layer may crack, which not only weakens the overall strength of the hose but may also cause metal fragments to fall off, affecting the insulation performance of internal cables or blocking the fluid transport channels. The plastic coating may also crack due to bending, losing its protective function for the metal layer, accelerating metal corrosion, and shortening the hose's service life. Utility Model Content

[0004] This invention provides a bend-resistant metal-coated flexible hose to solve the problem that the internal structure of existing ordinary metal-coated flexible hoses is easily damaged under frequent or large-amplitude bending.

[0005] This utility model provides the following technical solution: a bend-resistant metal-coated flexible tube, including an inner tube, and further including: an bend-resistant mechanism disposed on the surface of the inner tube, the bend-resistant mechanism including a glass fiber and a metal mesh layer; a connection port disposed on the back of the inner tube, the connection port having an internal thread, the internal thread of the internal thread being connected to a filter mechanism, the filter mechanism including a threaded cylinder and a filter screen.

[0006] As a preferred embodiment of this invention, a polyethylene protective layer is installed on the surface of the metal mesh layer, and a corrosion-resistant coating is applied to the surface of the polyethylene protective layer.

[0007] As a preferred embodiment of this utility model, the surface of the threaded cylinder is rotatably connected to a rotating interface, and the inner wall of the rotating interface is provided with a threaded hole.

[0008] In a preferred embodiment of this utility model, the internal thread of the rotating interface is connected to the external connecting pipe, and a sealing ring A is installed on the inner wall of the rotating interface.

[0009] As a preferred embodiment of this utility model, an installation port is welded to one side of the inner tube, and a rotary joint is rotatably connected to the surface of the installation port.

[0010] As a preferred embodiment of this utility model, a sealing groove is provided inside the connection port, and a sealing ring B is installed inside the sealing groove.

[0011] In a preferred embodiment of this invention, the glass fiber is disposed on the surface of the inner tube, and the metal mesh layer is installed on the surface of the glass fiber.

[0012] As a preferred embodiment of this utility model, the threaded cylinder is threadedly connected to the inside of the internal thread, and the filter screen is installed inside the threaded cylinder.

[0013] Compared with the prior art, this utility model provides a bend-resistant metal-coated flexible tube with the following advantages:

[0014] 1. This bend-resistant metal-coated flexible hose features a bend-resistant mechanism. During use, fiberglass and metal mesh layers are installed on the surface of the inner tube. The fiberglass is tightly bonded to the outer wall of the inner tube, utilizing its high strength and high modulus to provide initial tensile and bending resistance. The metal mesh layer, woven from high-strength metal wires, is laid outside the fiberglass, providing stability and protection for both the fiberglass and the inner tube. The combined use of the fiberglass and metal mesh layers effectively disperses stress, preventing deformation of the inner tube due to excessive local stress.

[0015] 2. This bend-resistant metal-coated flexible hose features a filter mechanism. During use, impurities may mix with the fluid transported in the inner tube, leading to pipe blockage over time. Therefore, a threaded cylinder with a filter screen installed inside is provided at the connection point. The threaded cylinder is connected by bolts, facilitating easy installation and disassembly by operators and preventing impurities from clogging the pipe and affecting the normal operation of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the filter mechanism structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the anti-bending mechanism of this utility model.

[0020] In the diagram: 1. Inner tube; 2. Anti-bending mechanism; 201. Fiberglass; 202. Metal mesh layer; 3. Connection port; 4. Filtering mechanism; 401. Threaded cylinder; 402. Filter screen; 5. Polyethylene protective layer; 6. Rotary interface; 7. Sealing ring A; 8. Mounting port; 9. Rotary joint; 10. Sealing ring B. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 This utility model discloses a bend-resistant metal-coated flexible tube, including an inner tube 1, and further comprising:

[0023] An anti-bending mechanism 2 is provided on the surface of the inner tube 1. The anti-bending mechanism 2 includes glass fiber 201 and a metal mesh layer 202.

[0024] A connection port 3 is provided on the back of the inner tube 1. The connection port 3 has an internal thread, and the internal thread of the internal thread is connected to a filter mechanism 4. The filter mechanism 4 includes a threaded cylinder 401 and a filter screen 402.

[0025] Specifically, glass fiber 201 is disposed on the surface of inner tube 1, and metal mesh layer 202 is installed on the surface of glass fiber 201.

[0026] In this embodiment, during use, glass fiber 201 and metal mesh layer 202 are respectively installed on the surface of the inner tube 1. The glass fiber 201 is tightly attached to the outer wall of the inner tube 1, and its high strength and high modulus characteristics provide preliminary tensile and bending resistance for the inner tube 1. The metal mesh layer 202 is laid outside the glass fiber 201. It is woven from high-strength metal wires and plays a role in stabilizing and protecting the glass fiber 201 and the inner tube 1.

[0027] Specifically, the threaded cylinder 401 is threaded into the interior of the internal thread, and the filter screen 402 is installed inside the threaded cylinder 401.

[0028] In this embodiment, during use, the fluid transported by the inner pipe 1 will be mixed with impurities, which will cause the pipe to become blocked over a long period of time. Therefore, a threaded cylinder 401 is provided at the connection port 3. A filter screen 402 is installed inside the threaded cylinder 401, and the threaded cylinder 401 is connected by bolts, which makes it convenient for workers to install and disassemble it.

[0029] Specifically, a polyethylene protective layer 5 is installed on the surface of the metal mesh layer 202, and a corrosion-resistant coating is applied to the surface of the polyethylene protective layer 5.

[0030] In this embodiment, the polyethylene protective layer 5 is installed on the surface of the metal mesh layer 202 to facilitate the protection of the metal mesh layer 202.

[0031] Specifically, the surface of the threaded cylinder 401 is rotatably connected to a rotating interface 6, and the inner wall of the rotating interface 6 is provided with a threaded hole.

[0032] Specifically, the internal thread of the rotating interface 6 is connected to the external connecting pipe, and a sealing ring A7 is installed on the inner wall of the rotating interface 6.

[0033] In this embodiment, the rotating interface 6 facilitates connection to external pipes, and the sealing ring A7 facilitates sealing of the rotating interface 6.

[0034] Specifically, an installation port 8 is welded to one side of the inner tube 1, and a rotary joint 9 is rotatably connected to the surface of the installation port 8.

[0035] Specifically, a sealing groove is provided inside the connection port 3, and a sealing ring B10 is installed inside the sealing groove.

[0036] The working principle and usage process of this utility model are as follows: When in use, glass fiber 201 and metal mesh layer 202 are respectively installed on the surface of the inner tube 1. The glass fiber 201 is tightly attached to the outer wall of the inner tube 1. Utilizing its own high strength and high modulus characteristics, it provides preliminary tensile and bending resistance support for the inner tube 1. The metal mesh layer 202 is laid outside the glass fiber 201. It is woven from high-strength metal wires and plays a role in stabilizing and protecting the glass fiber 201 and the inner tube 1.

[0037] When in use, the fluid transported by the inner pipe 1 will be mixed with impurities, which will cause the pipe to become blocked over time. Therefore, a threaded cylinder 401 is provided at the connection port 3. A filter screen 402 is installed inside the threaded cylinder 401, and the threaded cylinder 401 is connected by bolts, which makes it convenient for workers to install and disassemble it.

[0038] In summary, this bend-resistant metal-coated flexible hose, through the bend-resistant mechanism 2, and the combined use of glass fiber 201 and metal mesh layer 202, can effectively disperse stress and prevent the inner tube 1 from deforming due to excessive local stress; through the filter mechanism 4, it prevents impurities from clogging the pipe and affecting the normal use of the equipment.

[0039] 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.

[0040] 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 bend-resistant metal-coated flexible hose, comprising an inner tube (1), characterized in that, Also includes: An anti-bending mechanism (2) is provided on the surface of the inner tube (1), the anti-bending mechanism (2) comprising glass fiber (201) and a metal mesh layer (202); A connection port (3) is provided on the back of the inner tube (1). The connection port (3) has an internal thread. The internal thread of the internal thread is connected to a filter mechanism (4). The filter mechanism (4) includes a threaded cylinder (401) and a filter screen (402).

2. The bend-resistant metal-coated flexible hose according to claim 1, characterized in that: The surface of the metal mesh layer (202) is covered with a polyethylene protective layer (5), and the surface of the polyethylene protective layer (5) is coated with a corrosion-resistant coating.

3. The bend-resistant metal-coated flexible hose according to claim 1, characterized in that: The surface of the threaded cylinder (401) is rotatably connected to a rotating interface (6), and the inner wall of the rotating interface (6) is provided with a threaded hole.

4. The bend-resistant metal-coated flexible hose according to claim 3, characterized in that: The internal thread of the rotating interface (6) is connected to the external connecting pipe, and a sealing ring A (7) is installed on the inner wall of the rotating interface (6).

5. The bend-resistant metal-coated flexible hose according to claim 1, characterized in that: The inner tube (1) has an installation port (8) welded on one side, and a rotary joint (9) is rotatably connected to the surface of the installation port (8).

6. The bend-resistant metal-coated flexible hose according to claim 1, characterized in that: A sealing groove is provided inside the connection port (3), and a sealing ring B (10) is installed inside the sealing groove.

7. The bend-resistant metal-coated flexible hose according to claim 1, characterized in that: The glass fiber (201) is disposed on the surface of the inner tube (1), and the metal mesh layer (202) is installed on the surface of the glass fiber (201).

8. The bend-resistant metal-coated flexible hose according to claim 1, characterized in that: The threaded cylinder (401) is threaded into the interior of the internal thread, and the filter screen (402) is installed inside the threaded cylinder (401).

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