Pipeline anti-freezing structure

Abstract

The utility model discloses a pipeline anti-freezing structure which comprises an inner pipe, a protection pipe is arranged outside the inner pipe, a telescopic mechanism is arranged on one side of the protection pipe, a first material layer is arranged inside the protection pipe, a second material layer is arranged inside the inner pipe, an assembly plate is arranged at the bottom end of the protection pipe, and a first material layer is arranged at the bottom end of the assembly plate. And a buffer mechanism is arranged in the assembling plate. The buffer mechanisms are arranged at the bottom ends of the protection tubes, when the inner tube and the protection tubes are integrally subjected to force generated by external pulling, the protection tubes can drive the sliding blocks to slide on the sliding rods, the inner tube and the protection tubes are integrally buffered and protected through the second springs, and meanwhile the telescopic mechanisms are arranged between the two protection tubes, so that the protection tubes are more flexible. And when the inner pipe is subjected to force generated by thermal expansion and cold contraction, the limiting ring on the telescopic mechanism can slide in the protection pipe, so that the force applied to the whole inner pipe by the protection pipe is reduced, and the protection effect of the pipeline anti-freezing structure is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline protection technology, specifically a pipeline antifreeze structure. Background Technology

[0002] Pipeline antifreeze structures are devices used to prevent pipelines from freezing in low-temperature environments. They typically include an insulation layer, a reinforcement layer, and the pipeline body. The insulation layer, made of heat-insulating material, effectively reduces heat loss. This structure effectively prevents pipeline freezing, ensuring normal fluid flow and is widely used in water supply and heating systems in cold regions.

[0003] A pipe antifreeze structure disclosed in Chinese Patent Publication No. CN205896536U consists of an outer tube made of thermal insulation material, which is fitted over an inner tube and filled with foam material between the inner and outer tubes. The outer side of the inner tube is provided with multiple coils of resistance wire, which are connected to a temperature switch. An indicator light is located on the outer tube to realize real-time monitoring of the pipe's temperature. It is safe and convenient. However, from the perspective of the overall functionality of the pipe antifreeze structure, it cannot effectively protect the main body of the pipe. When the pipe is subjected to external tension or the force generated by thermal expansion and contraction, it will cause tension between the pipe and the antifreeze structure, thereby affecting the safety and stability of the pipe antifreeze structure and the overall service life of the pipe. Utility Model Content

[0004] The purpose of this invention is to provide a pipe antifreeze structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe antifreeze structure, including an inner pipe, a protective pipe provided outside the inner pipe, a telescopic mechanism provided on one side of the protective pipe, a first material layer provided inside the protective pipe, a second material layer provided inside the inner pipe, an assembly plate provided at the bottom end of the protective pipe, and a buffer mechanism provided inside the assembly plate.

[0006] Preferably, annular grooves are provided on both sides of the outer side of the inner tube, and a plug that engages with the annular grooves is fixedly connected to one side of the inner side of the protective tube.

[0007] Preferably, the telescopic mechanism includes an annular block that is slidably connected inside one side of the protective tube, a limit ring that is fixedly connected to one side of the annular block, and a first spring that is fixedly connected to one side of the annular block.

[0008] Preferably, the first material layer includes an insulation layer disposed inside the protective tube, the insulation layer being made of aerogel composite material, a first reinforcing layer disposed outside the insulation layer, the first reinforcing layer being made of aluminum alloy, and an anti-aging layer disposed outside the first reinforcing layer, the anti-aging layer being made of polyvinylidene fluoride composite material.

[0009] Preferably, the second material layer includes a composite layer disposed inside the inner tube, the composite layer being made of cross-linked polyethylene nanocomposite material, a phase change layer disposed outside the composite layer being made of shape-stabilized phase change material, and a second reinforcing layer disposed outside the phase change layer being made of aluminum alloy.

[0010] Preferably, the buffer mechanism includes a slide rod fixedly connected to the middle position inside the assembly plate, sliders slidably connected to both sides of the slide rod, second springs fixedly connected to both sides of the sliders, and a connecting block fixedly connected to the top of the slider and fixedly connected to the protective tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This type of pipe antifreeze structure has a buffer mechanism at the bottom of the protective pipe. When the inner pipe and the protective pipe are subjected to external pulling force, the protective pipe can drive the slider to slide on the slide rod, and the inner pipe and the protective pipe are buffered and protected by the second spring. At the same time, a telescopic mechanism is set in the middle of the two sets of protective pipes. When the inner pipe is subjected to the force of thermal expansion and contraction, the limiting ring on the telescopic mechanism can slide inside the protective pipe, thereby reducing the force exerted by the protective pipe on the inner pipe as a whole, effectively improving the protection effect of the pipe antifreeze structure and increasing the service life of the pipe antifreeze structure and the pipe body.

[0013] 2. This type of pipeline antifreeze structure incorporates a composite layer, a phase change layer, a second reinforcement layer and an insulation layer, a first reinforcement layer, and an anti-aging layer within both the inner and protective pipes. The composite and phase change layers ensure the overall strength of the pipeline while maintaining good flexibility in low-temperature environments, preventing brittleness. The shaped phase change material stores more heat during the phase change process, enhancing the antifreeze effect. The insulation and anti-aging layers within the protective pipe effectively reduce heat loss, improve insulation efficiency, and enhance long-term stability under various environmental conditions. This makes the antifreeze structure superior to conventional products on the market in terms of corrosion resistance, insulation performance, and mechanical strength, effectively solving the problem of pipeline antifreeze and suitable for various harsh environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a top view of the buffer mechanism of this utility model.

[0018] In the diagram: 1. Inner tube; 101. Annular groove; 2. Protective tube; 3. Telescopic mechanism; 301. Annular block; 302. Limiting ring; 303. First spring; 4. First material layer; 401. Insulation layer; 402. First reinforcing layer; 403. Anti-aging layer; 5. Insert block; 6. Second material layer; 601. Composite layer; 602. Phase change layer; 603. Second reinforcing layer; 7. Assembly plate; 8. Buffer mechanism; 801. Slide rod; 802. Slider; 803. Second spring; 804. Connecting block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides two technical solutions:

[0021] Example 1: A pipe antifreeze structure includes an inner pipe 1, a protective pipe 2 outside the inner pipe 1, a telescopic mechanism 3 on one side of the protective pipe 2, a first material layer 4 inside the protective pipe 2, a second material layer 6 inside the inner pipe 1, an assembly plate 7 at the bottom of the protective pipe 2, and a buffer mechanism 8 inside the assembly plate 7. The two sets of protective pipes 2 are connected and assembled by bolts, thereby facilitating the disassembly of the inner pipe 1 and the protective pipe 2.

[0022] The inner tube 1 has annular grooves 101 on both sides of its outer surface. The protective tube 2 has a plug 5 fixedly connected to one side of its inner surface, which engages with the annular grooves 101. The plug 5 on the protective tube 2 can engage with the annular grooves 101 on the outer surface of the inner tube 1, thereby improving the stability of the connection between the inner tube 1 and the protective tube 2.

[0023] The telescopic mechanism 3 includes an annular block 301 that is slidably connected inside one side of the protective tube 2. A limiting ring 302 is fixedly connected to one side of the annular block 301, and a first spring 303 is fixedly connected to one side of the annular block 301. When the inner tube 1 inside the protective tube 2 is subjected to thermal expansion and contraction, the limiting rings 302 on both sides of the annular block 301 can slide inside the protective tube 2 and stretch the first spring 303 on one side, thereby enabling the protective tube 2 to adapt to the changes caused by thermal expansion and contraction of the inner tube 1.

[0024] The buffer mechanism 8 includes a slide rod 801 fixedly connected to the middle position inside the assembly plate 7. Slider 802 is slidably connected to both sides of the slide rod 801. Second springs 803 are fixedly connected to both sides of the slider 802. A connecting block 804 is fixedly connected to the top of the slider 802 and fixedly connected to the protective tube 2. When the inner tube 1 is subjected to external pushing and pulling force, the slider 802 at the bottom of the protective tube 2 can slide on the slide rod 801 and squeeze the second springs 803 on both sides, thereby providing buffer protection for the antifreeze structure of the pipeline.

[0025] Example 2 differs from Example 1 mainly in that:

[0026] A pipe antifreeze structure includes a first material layer 4 containing an insulation layer 401 inside the protective pipe 2. The insulation layer 401 is made of aerogel composite material, which effectively reduces heat loss, improves insulation efficiency, and is thinner than traditional insulation materials, saving space. At the same time, it prevents water vapor penetration and maintains long-term insulation performance.

[0027] The insulation layer 401 is provided with a first reinforcing layer 402 on the outside. The first reinforcing layer 402 is made of aluminum alloy, which is strong, high quality and light weight, and can effectively conduct heat protection.

[0028] The first reinforcing layer 402 is provided with an anti-aging layer 403 on the outside. The anti-aging layer 403 is made of polyvinylidene fluoride composite material, which improves the external strength of the protective tube 2 and resists aging caused by environmental factors such as ultraviolet rays and ozone. At the same time, the surface is smooth, not easy to get dirty, easy to clean, and maintains long-term stability in various environments.

[0029] The second material layer 6 includes a composite layer 601 set inside the inner tube 1. The composite layer 601 is made of cross-linked polyethylene nanocomposite material. The nanomaterial filling improves the chemical corrosion resistance and extends the service life. The nano reinforcement improves the mechanical strength and can withstand higher water pressure. At the same time, it maintains good flexibility in low temperature environment and is not easy to crack.

[0030] A phase change layer 602 is provided on the outside of the composite layer 601. The phase change layer 602 uses a shaped phase change material to store more heat, improve the antifreeze effect, and remain solid during the phase change process to avoid leakage.

[0031] A second reinforcing layer 603 is provided on the outside of the phase change layer 602. The second reinforcing layer 603 is made of aluminum alloy, which effectively ensures the overall strength of the inner tube 1. At the same time, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] In this embodiment of the application, the protective tube 2 is sleeved on the outside of the inner tube 1. At this time, the insert 5 inside the protective tube 2 can be inserted into the annular groove 101 on the inner tube 1, thus completing the stable installation of the protective tube 2 outside the inner tube 1. When the inner tube 1 and the protective tube 2 are subjected to external pulling force, the protective tube 2 can drive the slider 802 to slide on the slide rod 801 through the connecting block 804. At this time, the slider 802 can squeeze the second spring 803 on one side. Due to the reaction force of the second spring 803 being squeezed, the slider 802 can drive the protective tube 2 and the inner tube 1 to reset, thereby reducing the overall force on the pipeline. At the same time, when the inner tube 1 is affected by thermal expansion and contraction, the limiting rings 302 on both sides of the telescopic mechanism 3 can slide inside the protective tube 2 and stretch or squeeze the first spring 303 on one side, thereby avoiding the protective tube 2 from causing pressure on the outside of the inner tube 1.

[0033] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe antifreeze structure, comprising an inner pipe (1), characterized in that: The inner tube (1) is provided with a protective tube (2) on the outside. A telescopic mechanism (3) is provided on one side of the protective tube (2). A first material layer (4) is provided inside the protective tube (2). A second material layer (6) is provided inside the inner tube (1). An assembly plate (7) is provided at the bottom end of the protective tube (2). A buffer mechanism (8) is provided inside the assembly plate (7).

2. The pipe antifreeze structure according to claim 1, characterized in that: The inner tube (1) has annular grooves (101) on both sides outside, and the protective tube (2) has a plug (5) fixedly connected to one side inside, which engages with the annular grooves (101).

3. The pipe antifreeze structure according to claim 1, characterized in that: The telescopic mechanism (3) includes an annular block (301) that is slidably connected to one side of the protective tube (2). A limit ring (302) is fixedly connected to one side of the annular block (301), and a first spring (303) is fixedly connected to one side of the annular block (301).

4. The pipe antifreeze structure according to claim 1, characterized in that: The first material layer (4) includes a heat insulation layer (401) disposed inside the protective tube (2), the heat insulation layer (401) is made of aerogel composite material, a first reinforcing layer (402) is disposed outside the heat insulation layer (401), the first reinforcing layer (402) is made of aluminum alloy material, an anti-aging layer (403) is disposed outside the first reinforcing layer (402), and the anti-aging layer (403) is made of polyvinylidene fluoride composite material.

5. The pipe antifreeze structure according to claim 1, characterized in that: The second material layer (6) includes a composite layer (601) disposed inside the inner tube (1), the composite layer (601) is made of cross-linked polyethylene nanocomposite material, a phase change layer (602) is disposed outside the composite layer (601), the phase change layer (602) is made of shape-stabilized phase change material, and a second reinforcing layer (603) is disposed outside the phase change layer (602), the second reinforcing layer (603) is made of aluminum alloy material.

6. The pipeline antifreeze structure according to claim 1, characterized in that: The buffer mechanism (8) includes a slide rod (801) fixedly connected to the middle position inside the assembly plate (7), and sliders (802) slidably connected to both sides outside the slide rod (801). Second springs (803) are fixedly connected to both sides of the sliders (802), and a connecting block (804) fixedly connected to the top of the slider (802) and fixedly connected to the protective tube (2).

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