Tear-resistant rubber and plastic foaming heat insulation pipe

Abstract

The utility model relates to a tear-resistant rubber and plastic foaming heat-insulating pipe which comprises a rubber and plastic heat-insulating pipe with the cross section of a hollow annular pipe body structure. The inner-layer smooth pipe is of a hollow annular pipe body structure and is fixedly connected to the inner wall of the rubber and plastic heat insulation pipe; and the tear-resistant outer layer is coated on the outer wall of the rubber and plastic heat insulation pipe and is fixedly connected with the rubber and plastic heat insulation pipe. According to the rubber and plastic foaming heat insulation pipe, the inner layer smooth pipe is arranged on the inner wall of the rubber and plastic heat insulation pipe, the inner layer smooth pipe is additionally arranged on the inner wall of the rubber and plastic heat insulation pipe so that pipe penetrating resistance can be reduced, the rubber and plastic foaming heat insulation pipe can be rapidly connected to the outer wall of a pipeline in a sleeving mode, the installation difficulty of a working sleeve is lowered, and working efficiency is improved. The anti-tearing outer layer is arranged on the outer wall of the rubber and plastic heat insulation pipe, the anti-tearing outer layer is used for enhancing the anti-tearing performance of the rubber and plastic heat insulation pipe, meanwhile, the special functions of mildew resistance, bacterium resistance, static electricity conduction, pollution prevention and the like are achieved, the comprehensive performance of the rubber and plastic foaming heat insulation pipe is remarkably improved, and the application range of the rubber and plastic foaming heat insulation pipe is remarkably widened.

Description

Technical Field

[0001] This application relates to the technical field of adiabatic pipes, and particularly to a tear-resistant rubber and plastic foamed adiabatic pipe. Background Art

[0002] Pipes are a commonly used tool for transporting hot and cold media. In order to maintain the temperature of the pipes and reduce heat and cold losses, adiabatic materials are usually wrapped around the outside of the pipes to reduce energy losses. Rubber and plastic adiabatic materials are widely used in the fields of central air-conditioning system equipment in buildings, domestic building life hot and cold water equipment, and container heat insulation, etc. due to their excellent properties such as softness, flexibility, heat resistance, flame retardancy, heat resistance, waterproofness, low thermal conductivity, shock absorption, and sound absorption. At the same time, the construction is simple, the appearance is clean and beautiful, and the product does not contain fiber dust and will not breed any harmful substances such as mold.

[0003] Since rubber and plastic adiabatic materials are produced by vulcanization and foaming processes, the materials are fully foamed to form a connected closed-cell structure, thus playing an adiabatic role and hindering the penetration of moisture. However, the tear-resistant performance of the fully foamed adiabatic material is relatively low, and the integrity of the adiabatic material is easily damaged during the construction process, resulting in a decline in the performance of the adiabatic material. In addition, the rubber and plastic adiabatic pipes made of rubber and plastic adiabatic materials have a large friction coefficient, and it is difficult to quickly put the rubber and plastic adiabatic pipes on the outer wall of the pipes during construction. Summary of the Invention

[0004] The embodiments of this application provide a tear-resistant rubber and plastic foamed adiabatic pipe to solve the problems of relatively low tear-resistant performance and large friction coefficient of rubber and plastic adiabatic pipes in related technologies.

[0005] The embodiments of this application provide a tear-resistant rubber and plastic foamed adiabatic pipe, including:

[0006] A rubber and plastic adiabatic pipe, the cross-section of the rubber and plastic adiabatic pipe is a hollow annular pipe structure;

[0007] An inner smooth pipe, the inner smooth pipe is a hollow annular pipe structure and is fixedly connected to the inner wall of the rubber and plastic adiabatic pipe;

[0008] A tear-resistant outer layer, the tear-resistant outer layer is coated on the outer wall of the rubber and plastic adiabatic pipe and is fixedly connected to the rubber and plastic adiabatic pipe.

[0009] In some embodiments: the tear-resistant outer layer is made of a rubber and plastic alloy material, and the tear-resistant outer layer is connected to the rubber and plastic adiabatic pipe through hot melt glue.

[0010] In some embodiments: the wall thickness of the tear-resistant outer layer is 0.1 - 5 mm, and the wall thickness of the inner smooth pipe is 0.1 - 0.5 mm.

[0011] In some embodiments: the inner smooth tube is made of any one of polytetrafluoroethylene material, polyamide material or polyurethane material.

[0012] In some embodiments: a male connector is provided at one end of the rubber-plastic thermal insulation pipe, the outer diameter of the male connector is smaller than the outer diameter of the rubber-plastic thermal insulation pipe, and the inner diameter of the male connector is equal to the inner diameter of the rubber-plastic thermal insulation pipe;

[0013] The other end of the rubber-plastic heat-insulating pipe is provided with a female head matched with the male head, and two adjacent sections of the rubber-plastic heat-insulating pipe are connected to each other through plugging and unplugging the male head and the female head.

[0014] In some embodiments: the male head is a circular tube structure with the same diameter, the female head is a circular hole with an inner diameter larger than the inner diameter of the rubber-plastic insulation tube, and the outer wall of the male head and the inner wall of the female head are attached to each other and connected by an adhesive.

[0015] In some embodiments: the male head is a conical tube body structure whose diameter gradually decreases away from the rubber-plastic insulated pipe, and the female head is a conical hole whose inner diameter gradually increases toward the end of the rubber-plastic insulated pipe. The outer wall of the male head and the inner wall of the female head are attached to each other and connected by an adhesive.

[0016] In some embodiments: the end faces of both ends of the rubber-plastic insulation pipe are provided with toothed joints, and the toothed joints include coupling teeth arranged along the circumferential direction of the rubber-plastic insulation pipe. The two adjacent sections of the rubber-plastic insulation pipe are meshed with each other through the toothed joints and connected by adhesive.

[0017] In some embodiments: the outer surface of the tear-resistant outer layer is provided with anti-slip textures.

[0018] In some embodiments: the inner wall of the inner smooth tube is coated with a lubricating oil layer, a lubricating grease layer or a lubricating powder.

[0019] The beneficial effects of the technical solution provided by this application include:

[0020] The embodiment of the present application provides a tear-resistant rubber-plastic foam insulation pipe. Since the tear-resistant rubber-plastic foam insulation pipe of the present application is provided with a rubber-plastic insulation pipe, the cross-section of the rubber-plastic insulation pipe is a hollow annular tube body structure; an inner layer smooth tube, the inner layer smooth tube is a hollow annular tube body structure and is fixedly connected to the inner wall of the rubber-plastic insulation pipe; a tear-resistant outer layer, the tear-resistant outer layer is coated on the outer wall of the rubber-plastic insulation pipe and is fixedly connected to the rubber-plastic insulation pipe.

[0021] Therefore, the tear-resistant rubber and plastic foamed heat-insulating pipe of the present application is provided with an inner smooth pipe on the inner wall of the rubber and plastic heat-insulating pipe. Adding the inner smooth pipe on the inner wall of the rubber and plastic heat-insulating pipe can reduce the pipe-passing resistance, enable the rubber and plastic foamed heat-insulating pipe to be quickly sleeved on the outer wall of the pipeline, reduce the installation difficulty of the working sleeve, and improve the work efficiency. An anti-tear outer layer is provided on the outer wall of the rubber and plastic heat-insulating pipe. The anti-tear outer layer enhances the tear resistance of the rubber and plastic heat-insulating pipe and endows it with special functions such as mildew and antibacterial resistance, static electricity conduction, and stain prevention, significantly improving the comprehensive performance and application range of the rubber and plastic foamed heat-insulating pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the present application;

[0024] Figure 2 It is a longitudinal-sectional schematic diagram of an embodiment of the present application;

[0025] Figure 3 It is a structural schematic diagram of the male head and the female head connected to the end of the rubber and plastic heat-insulating pipe in an embodiment of the present application;

[0026] Figure 4 It is a structural schematic diagram of the male head and the female head connected to the end of the rubber and plastic heat-insulating pipe in another embodiment of the present application;

[0027] Figure 5 It is a structural schematic diagram of the toothed joint connected to the end of the rubber and plastic heat-insulating pipe in an embodiment of the present application.

[0028] Reference numerals:

[0029] 1. Rubber and plastic heat-insulating pipe; 2. Inner smooth pipe; 3. Anti-tear outer layer; 4. Male head; 5. Female head; 6. Toothed joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0031] The embodiments of the present application provide a tear-resistant rubber and plastic foamed heat-insulating pipe, which can solve the problems of low tear resistance and large friction coefficient of rubber and plastic heat-insulating pipes in the related art.

[0032] See Figure 1 and Figure 2 As shown, the embodiments of the present application provide a tear-resistant rubber and plastic foamed heat-insulating pipe, including:

[0033] A rubber and plastic heat-insulating pipe 1, the cross-section of the rubber and plastic heat-insulating pipe 1 is a hollow annular pipe structure, and the rubber and plastic heat-insulating pipe 1 is a pipe body with a uniform and continuous closed-cell structure formed by foaming and vulcanizing rubber and plastic heat-insulating materials, having good heat-insulating performance.

[0034] An inner smooth pipe 2, the inner smooth pipe 2 is a hollow annular pipe structure and is fixedly connected to the inner wall of the rubber and plastic heat-insulating pipe 1. The inner wall of the inner smooth pipe 2 is smooth, with a low friction coefficient, facilitating the smooth sleeving of the rubber and plastic heat-insulating pipe 1 on the pipeline.

[0035] A tear-resistant outer layer 3, the tear-resistant outer layer 3 is coated on the outer wall of the rubber and plastic heat-insulating pipe 1 and is fixedly connected to the rubber and plastic heat-insulating pipe 1. The tear-resistant outer layer 3 improves the tear resistance of the rubber and plastic heat-insulating pipe 1 and at the same time plays functions such as mildew prevention, static conduction, and dirt prevention, adapting to multi-scene applications.

[0036] In the rubber and plastic foamed heat-insulating pipe of the embodiments of the present application, an inner smooth pipe 2 is provided on the inner wall of the rubber and plastic heat-insulating pipe 1. Adding the inner smooth pipe 2 to the inner wall of the rubber and plastic heat-insulating pipe 1 reduces the pipe-passing resistance, enables the rubber and plastic foamed heat-insulating pipe to be quickly sleeved on the outer wall of the pipeline, reduces the installation difficulty of the working sleeve, and improves work efficiency.

[0037] A tear-resistant outer layer 3 is provided on the outer wall of the rubber and plastic heat-insulating pipe 1. The tear-resistant outer layer 3 enhances the tear resistance of the rubber and plastic heat-insulating pipe 1 and at the same time endows special functions such as mildew and antibacterial, static conduction, and dirt prevention, significantly improving the comprehensive performance and application range of the rubber and plastic foamed heat-insulating pipe.

[0038] In some alternative embodiments: See Figure 1 and Figure 2 As shown, the embodiments of the present application provide a tear-resistant rubber and plastic foamed heat-insulating pipe. The tear-resistant outer layer 3 of the rubber and plastic foamed heat-insulating pipe is made of a rubber and plastic alloy material, and the tear-resistant outer layer 3 is connected to the rubber and plastic heat-insulating pipe 1 through hot-melt glue.

[0039] The tear-resistant outer layer 3 of the embodiments of the present application is made of a rubber and plastic alloy material. When the rubber and plastic alloy material is applied to the air duct of the central air-conditioning system in frequent temperature cycles, the tear-resistant outer layer 3 can still maintain its structural integrity, reduce refrigeration or heating losses, and the mildew prevention characteristic avoids bacterial growth, ensuring air quality.

[0040] In industrial fields such as chemical engineering and food processing, the anti-fouling characteristics of rubber-plastic alloy materials are particularly prominent. In an oily dirt environment, the anti-fouling surface can reduce accumulation, is easy to clean, maintains the pipeline unobstructed, and the anti-static function further reduces the fire risk and ensures production safety, especially in applications in flammable and explosive environments.

[0041] In outdoor or extreme climate conditions, the anti-aging and anti-cracking properties of rubber-plastic alloy materials are remarkable. Under the tests of outdoor sunlight, wind and rain, high and low temperatures, ultraviolet rays, etc., the outer layer of the rubber-plastic alloy is not easily aged, anti-tear, and the anti-mold function can better resist humid climates, ensuring the long-term stable operation of outdoor pipelines and reducing maintenance costs.

[0042] The medical field has extremely high hygiene standards for pipelines, and the anti-mold and anti-fouling functions of rubber-plastic alloy materials meet the strict requirements of the medical environment. In areas such as operating rooms and wards, the cleaning, anti-mold and anti-fouling properties of the pipeline reduce the risk of cross-infection and ensure medical health and safety.

[0043] In some alternative embodiments: Refer to Figure 1 and Figure 2 As shown, the embodiments of the present application provide a tear-resistant rubber-plastic foamed heat-insulating pipe. The wall thickness of the tear-resistant outer layer 3 of the rubber-plastic foamed heat-insulating pipe is 0.1 - 5 mm, and the wall thickness of the inner smooth pipe 2 is 0.1 - 0.5 mm.

[0044] The wall thickness of the tear-resistant outer layer 3 in the embodiments of the present application is between 0.1 - 5 mm. For example, when the wall thickness of the tear-resistant outer layer 3 is between 0.1 - 1 mm, it is used in most conventional application scenarios, such as building heat insulation and central air-conditioning systems.

[0045] When the wall thickness of the tear-resistant outer layer 3 is between 2 - 4 mm, it is applied in industrial fields such as chemical engineering and food processing. Due to the need for higher anti-fouling and anti-static properties, or in outdoor or extreme climate conditions, in order to enhance the anti-aging and anti-cracking properties, the thickness of the tear-resistant outer layer 3 can be appropriately increased.

[0046] The wall thickness of the inner smooth pipe 2 in the embodiments of the present application is between 0.1 - 0.5 mm. For example, in building heat insulation and central air-conditioning systems, etc., the thickness of the inner smooth pipe 2 is preferably 0.1 - 0.3 mm. The thickness within this range can not only ensure the effect of reducing friction but also not excessively increase the manufacturing cost.

[0047] Special scenarios: For special scenarios that require higher wear resistance or chemical corrosion resistance, such as in chemical engineering and food processing fields, etc., the thickness of the inner smooth pipe 2 can be appropriately increased, and the recommended range is 0.3 - 0.5 mm. This can ensure that the inner smooth pipe 2 can still maintain stable performance in harsh environments.

[0048] In some alternative embodiments: Refer to Figure 1and Figure 2 As shown, an embodiment of the present application provides a tear-resistant rubber and plastic foamed heat-insulating pipe. The inner smooth pipe 2 of the rubber and plastic foamed heat-insulating pipe is any one of polytetrafluoroethylene material, polyamide material or polyurethane material.

[0049] Polytetrafluoroethylene (PTFE): PTFE is famous for its extremely low friction coefficient and excellent wear resistance, and is very suitable as the material of the inner smooth pipe 2. It can effectively reduce the friction force during pipe threading and improve the installation efficiency.

[0050] Polyamide (PA): PA material also has good wear resistance and chemical corrosion resistance, and is suitable for various environments. In addition, the adhesion between PA and the rubber and plastic material is good, which can ensure the tight combination of the inner smooth pipe 2 and the inner wall of the rubber and plastic heat-insulating pipe 1.

[0051] Polyurethane (PU): PU material has excellent wear resistance and elasticity and can be used as a candidate material for the inner smooth pipe 2. However, when choosing PU, attention needs to be paid to its temperature resistance range and compatibility with the rubber and plastic heat-insulating pipe 1.

[0052] In some alternative embodiments: Refer to Figure 3 As shown, an embodiment of the present application provides a tear-resistant rubber and plastic foamed heat-insulating pipe. One end of the rubber and plastic heat-insulating pipe 1 of the rubber and plastic foamed heat-insulating pipe is provided with a male head 4. The outer diameter of the male head 4 is smaller than the outer diameter of the rubber and plastic heat-insulating pipe 1, and the inner diameter of the male head 4 is equal to the inner diameter of the rubber and plastic heat-insulating pipe 1;

[0053] The other end of the rubber and plastic heat-insulating pipe 1 is provided with a female head 5 adapted to the male head 4. Adjacent two sections of the rubber and plastic heat-insulating pipes 1 are connected to each other by inserting and pulling the male head 4 and the female head 5, preventing the heat insulation performance from decreasing at the lap joint between adjacent two sections of the rubber and plastic heat-insulating pipes 1 and possibly causing the formation of condensed water.

[0054] Specifically, the male head 4 is a structure formed by mechanical cutting of the rubber and plastic heat-insulating pipe 1. The male head 4 is a circular pipe body structure with the same diameter. The female head 5 is a circular hole with an inner diameter larger than the inner diameter of the rubber and plastic heat-insulating pipe 1. The outer wall of the male head 4 and the inner wall of the female head 5 are mutually attached and connected by an adhesive. The adhesive is preferably but not limited to neoprene glue.

[0055] Neoprene glue has good bonding performance and chemical corrosion resistance, and can ensure a firm connection between the end faces of the rubber and plastic heat-insulating pipes 1. Before applying neoprene glue, it is necessary to ensure that the end faces of the rubber and plastic heat-insulating pipes 1 are dry, clean, and free of impurities such as oil stains and dust, so as to ensure that the glue can fully exert its bonding effect.

[0056] Apply neoprene glue to the end face of the rubber and plastic insulation pipe 1. After the surface is dry, immediately insert the male head 4 into the female head 5 for docking, and apply appropriate pressure to make them fit tightly. The neoprene glue will form a tough adhesive layer after curing, thus ensuring the stability and sealing performance of the connection between two adjacent rubber and plastic insulation pipes 1.

[0057] In some alternative embodiments: Refer to Figure 4 As shown, the embodiment of the present application provides a tear-resistant rubber and plastic foamed insulation pipe. One end of the rubber and plastic insulation pipe 1 of the rubber and plastic foamed insulation pipe is provided with a male head 4. The outer diameter of the male head 4 is smaller than the outer diameter of the rubber and plastic insulation pipe 1, and the inner diameter of the male head 4 is equal to the inner diameter of the rubber and plastic insulation pipe 1.

[0058] The other end of the rubber and plastic insulation pipe 1 is provided with a female head 5 adapted to the male head 4. Adjacent two sections of rubber and plastic insulation pipes 1 are connected by inserting and pulling out the male head 4 and the female head 5 from each other, preventing the reduction of the heat preservation performance at the overlapping part between adjacent two sections of rubber and plastic insulation pipes 1 and possibly causing the formation of condensed water.

[0059] Specifically, the male head 4 is a structure formed by mechanical cutting of the rubber and plastic insulation pipe 1. The male head 4 is a conical pipe body structure with a gradually decreasing diameter in the direction away from the rubber and plastic insulation pipe 1. The female head 5 is a tapered hole with an inner diameter gradually increasing in the direction of the end of the rubber and plastic insulation pipe 1. The outer wall of the male head 4 is in close contact with the inner wall of the female head 5 and is connected by an adhesive. The adhesive is preferably but not limited to neoprene glue.

[0060] Neoprene glue has good adhesion performance and chemical corrosion resistance, and can ensure a firm connection between the end faces of the rubber and plastic insulation pipe 1. Before applying neoprene glue, it is necessary to ensure that the end face of the rubber and plastic insulation pipe 1 is dry, clean, and free of impurities such as oil stains and dust, so as to ensure that the glue can fully exert its adhesive effect.

[0061] Apply neoprene glue to the end face of the rubber and plastic insulation pipe 1. After the surface is dry, immediately insert the male head 4 into the female head 5 for docking, and apply appropriate pressure to make them fit tightly. The neoprene glue will form a tough adhesive layer after curing, thus ensuring the stability and sealing performance of the connection between two adjacent rubber and plastic insulation pipes 1.

[0062] In some alternative embodiments: Refer to Figure 5 As shown, the embodiment of the present application provides a tear-resistant rubber and plastic foamed insulation pipe. Tooth-shaped joints 6 are provided on the end faces at both ends of the rubber and plastic insulation pipe 1 of the rubber and plastic foamed insulation pipe. The tooth-shaped joint 6 includes engaging teeth arranged along the circumferential direction of the rubber and plastic insulation pipe 1. Adjacent two sections of rubber and plastic insulation pipes 1 are engaged with each other through the tooth-shaped joint 6 and are connected by an adhesive.

[0063] To further enhance the firmness and tightness of the connection between two adjacent sections of the rubber and plastic adiabatic pipe 1, tape can be used to wrap around the outside of the connection of the two sections of the rubber and plastic adiabatic pipe 1. The tape can provide additional fixing and sealing effects, preventing the pipe connection from loosening or leaking due to external forces or environmental changes.

[0064] When wrapping the tape, it should be ensured that the tape fits tightly on the rubber and plastic adiabatic pipe 1 to avoid generating air bubbles or wrinkles to ensure its sealing effect. The number of wrapped layers can be determined according to the size of the rubber and plastic adiabatic pipe 1, the use environment and the pressure requirements. Usually, it is recommended to wrap 2-3 layers.

[0065] In some alternative embodiments: Refer to Figure 5 As shown, the embodiment of the present application provides a tear-resistant rubber and plastic foamed adiabatic pipe. The outer surface of the tear-resistant outer layer 3 of the rubber and plastic foamed adiabatic pipe is provided with anti-slip patterns, and the anti-slip patterns are used to increase the friction force of holding the tear-resistant outer layer 3.

[0066] To reduce the friction coefficient of the inner smooth pipe 2, a lubricating oil layer, a lubricating grease layer or lubricating powder is coated on the inner wall of the inner smooth pipe 2. The lubricating oil layer, the lubricating grease layer or the lubricating powder is more likely to adhere to the inner wall of the inner smooth pipe 2 and has a good lubricating effect.

[0067] Working principle

[0068] The embodiment of the present application provides a tear-resistant rubber and plastic foamed adiabatic pipe. Since the tear-resistant rubber and plastic foamed adiabatic pipe of the present application is provided with a rubber and plastic adiabatic pipe 1, the cross-section of the rubber and plastic adiabatic pipe 1 is a hollow annular pipe structure; an inner smooth pipe 2, the inner smooth pipe 2 is a hollow annular pipe structure and is fixedly connected to the inner wall of the rubber and plastic adiabatic pipe 1; a tear-resistant outer layer 3, the tear-resistant outer layer 3 is coated on the outer wall of the rubber and plastic adiabatic pipe 1 and is fixedly connected to the rubber and plastic adiabatic pipe 1.

[0069] Therefore, the tear-resistant rubber and plastic foamed adiabatic pipe of the present application is provided with an inner smooth pipe 2 on the inner wall of the rubber and plastic adiabatic pipe 1. Adding the inner smooth pipe 2 on the inner wall of the rubber and plastic adiabatic pipe 1 can reduce the pipe penetration resistance, enable the rubber and plastic foamed adiabatic pipe to be quickly sleeved on the outer wall of the pipe, reduce the installation difficulty of the working sleeve, and improve the working efficiency.

[0070] A tear-resistant outer layer 3 is provided on the outer wall of the rubber and plastic adiabatic pipe 1. The tear-resistant outer layer 3 enhances the tear resistance of the rubber and plastic adiabatic pipe 1 while endowing special functions such as mildew and antibacterial resistance, static electricity conduction, and stain resistance, significantly improving the comprehensive performance and application range of the rubber and plastic foamed adiabatic pipe.

[0071] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0072] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0073] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A tear-resistant rubber-plastic foam insulation pipe, characterized in that: include: A rubber-plastic thermal insulation pipe (1), wherein the cross section of the rubber-plastic thermal insulation pipe (1) is a hollow annular pipe structure; An inner smooth tube (2), the inner smooth tube (2) being a hollow annular tube structure and fixedly connected to the inner wall of the rubber-plastic thermal insulation tube (1); A tear-resistant outer layer (3), the tear-resistant outer layer (3) is coated on the outer wall of the rubber-plastic thermal insulation pipe (1) and is fixedly connected to the rubber-plastic thermal insulation pipe (1).

2. The tear-resistant rubber-plastic foam insulation pipe according to claim 1, characterized in that: The tear-resistant outer layer (3) is made of a rubber-plastic alloy material, and the tear-resistant outer layer (3) is connected to the rubber-plastic insulation pipe (1) by hot-melt glue.

3. The tear-resistant rubber-plastic foam insulation pipe according to claim 1, characterized in that: The wall thickness of the tear-resistant outer layer (3) is 0.1-5 mm, and the wall thickness of the inner smooth tube (2) is 0.1-0.5 mm.

4. The tear-resistant rubber-plastic foam insulation pipe according to claim 1, characterized in that: The inner smooth tube (2) is made of any one of polytetrafluoroethylene material, polyamide material or polyurethane material.

5. The tear-resistant rubber-plastic foam insulation pipe according to claim 1, characterized in that: One end of the rubber-plastic thermal insulation pipe (1) is provided with a male head (4), the outer diameter of the male head (4) is smaller than the outer diameter of the rubber-plastic thermal insulation pipe (1), and the inner diameter of the male head (4) is equal to the inner diameter of the rubber-plastic thermal insulation pipe (1); The other end of the rubber-plastic thermal insulation pipe (1) is provided with a female head (5) matched with the male head (4), and two adjacent sections of the rubber-plastic thermal insulation pipe (1) are connected to each other by plugging and unplugging through the male head (4) and the female head (5).

6. The tear-resistant rubber-plastic foam insulation pipe according to claim 5, characterized in that: The male head (4) is a circular tube structure with the same diameter, and the female head (5) is a circular hole with an inner diameter greater than the inner diameter of the rubber-plastic insulation pipe (1). The outer wall of the male head (4) and the inner wall of the female head (5) are attached to each other and connected by an adhesive.

7. The tear-resistant rubber-plastic foam insulation pipe according to claim 5, characterized in that: The male head (4) is a conical tube structure whose diameter gradually decreases in the direction away from the rubber-plastic thermal insulation pipe (1), and the female head (5) is a conical hole whose inner diameter gradually increases in the direction of the end of the rubber-plastic thermal insulation pipe (1). The outer wall of the male head (4) and the inner wall of the female head (5) are attached to each other and connected by an adhesive.

8. The tear-resistant rubber-plastic foam insulation pipe according to claim 1, characterized in that: The end faces of both ends of the rubber-plastic thermal insulation pipe (1) are provided with toothed joints (6), and the toothed joints (6) include coupling teeth arranged along the circumferential direction of the rubber-plastic thermal insulation pipe. Two adjacent sections of the rubber-plastic thermal insulation pipe (1) are meshed with each other through the toothed joints (6) and connected by an adhesive.

9. The tear-resistant rubber-plastic foam insulation pipe according to claim 1, characterized in that: The outer surface of the tear-resistant outer layer (3) is provided with anti-slip patterns.

10. The tear-resistant rubber-plastic foam insulation pipe according to claim 1, characterized in that: The inner wall of the inner smooth tube (2) is coated with a lubricating oil layer, a lubricating grease layer or lubricating powder.

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