A spiral-wound polyethylene outer protective thermal insulation pipe

Abstract

The utility model discloses a spiral winding type polyethylene outer protective heat preservation pipe, including first polyethylene outer protective heat preservation pipe and second polyethylene outer protective heat preservation pipe, the outer wall fixed connection of first polyethylene outer protective heat preservation pipe one end has first locating ring, the outer wall fixed connection of second polyethylene outer protective heat preservation pipe one end has second locating ring. The utility model discloses a spiral winding type polyethylene outer protective heat preservation pipe, seal inserts the inside of seal insertion circle groove and inserts the circle block, and inserts the inside of insertion hole and is connected to the block, and the anti -drop card block is through the effect of damping elastic piece and is inserted into the inside of positioning card hole, so that first polyethylene outer protective heat preservation pipe and second polyethylene outer protective heat preservation pipe can complete splicing quickly, so that the installation and disassembly of heat preservation pipe become very convenient, greatly shorten the construction time, if the pipeline inside appears the failure or needs to check, can easily open the buckle connection and check or repair, need not destroy the pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of thermal insulation pipes, specifically a spiral-wound polyethylene outer protective thermal insulation pipe. Background Technology

[0002] Externally insulated pipes are a type of pipeline system used to transport various media (such as hot water, steam, oil, etc.). Their main features are good thermal insulation performance and corrosion resistance. The externally insulated pipe is a supporting product for the two-step production of prefabricated insulated pipes (pipe-in-pipe). It is mainly used as the outer protective layer of the insulation material. The externally insulated pipe provides effective protection for the polyurethane insulation layer and can play a role in waterproofing, corrosion prevention, aging prevention, and impact resistance.

[0003] In common applications, insulation pipes are typically connected by thermoplastic or welding connections. Once these connections are made, they are usually difficult or impossible to disassemble. This means that if a section of pipe needs to be replaced or repaired, the connection must be cut or damaged, increasing the difficulty and cost of maintenance. If a fault occurs inside the pipe or needs to be inspected, the irreversible nature of the connection means that the connection cannot be easily opened for inspection or repair, requiring the re-cutting or removal of part of the pipe. This has certain adverse effects on the user experience. To address this, we propose a spiral-wound polyethylene outer insulation pipe. Utility Model Content

[0004] Technical Problem Solved: Addressing the shortcomings of existing technologies, this utility model provides a spiral-wound polyethylene outer protective insulation pipe, which offers advantages such as easy installation and disassembly, high flexibility, and convenient maintenance. A sealing insert block is inserted into the inner side of the sealing insert groove, and a sealing strip on the inner side of the groove enhances sealing. An insert connecting block is engaged with the inner side of the insert hole, and an anti-detachment block, through the action of a damping elastic element, is engaged with the inner side of the positioning hole, strengthening stability. This allows for quick splicing between the first and second polyethylene outer protective pipes, making the installation and disassembly of the insulation pipe extremely convenient. No professional welding equipment or skills are required, significantly shortening construction time. If a fault occurs inside the pipe or requires inspection, the snap-fit ​​connection can be easily opened for inspection or repair without damaging the pipe, greatly reducing maintenance costs and time. The limiting plate on the inner side of the inner movable groove acts as a limiting and anti-detachment device, effectively solving the problems in the background technology.

[0005] Technical solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a spiral wound polyethylene outer protective insulation pipe, comprising a first polyethylene outer protective pipe and a second polyethylene outer protective pipe, wherein a first positioning ring is fixedly connected to the outer wall of one end of the first polyethylene outer protective pipe, and a second positioning ring is fixedly connected to the outer wall of one end of the second polyethylene outer protective pipe, wherein an inverted L-shaped positioning frame is fixedly connected to all four sides of the outer wall of the first positioning ring, and a connecting plate is fixedly connected to all four sides of the outer wall of the second positioning ring.

[0006] Preferably, the inner wall of the first positioning ring is fixedly connected to the outer wall of one end of the first polyethylene outer protective tube, the inner wall of the second positioning ring is fixedly connected to the outer wall of one end of the second polyethylene outer protective tube, the lower ends of the inverted L positioning frame are all fixedly connected to the four sides of the outer wall of the first positioning ring, and the lower ends of the connecting plate are all fixedly connected to the four sides of the outer wall of the second positioning ring.

[0007] Preferably, the inverted L-shaped positioning frame has positioning holes at both the upper and lower ends, and an insertion hole is provided at the front end of the inverted L-shaped positioning frame, which is interconnected with the positioning holes. A sealing insertion ring block is fixedly connected to one end of the first positioning ring, and a sealing insertion ring groove is provided on the inner wall of the second positioning ring. A sealing strip is fixedly connected to the inner wall of the sealing insertion ring groove.

[0008] Preferably, an insertion connecting block is fixedly connected to one side of the connecting plate, an inner movable groove is provided on the inner wall of the insertion connecting block, a damping elastic element is positioned and installed on the inner wall of the inner movable groove, a limit plate is fixedly connected to both ends of the damping elastic element, and an anti-disengagement block is fixedly connected to one side of the limit plate.

[0009] Preferably, one end of the sealing insert ring is fixedly connected to one end of the first positioning ring, and one side of the sealing strip is bonded and positioned to the inner wall of the sealing insert ring groove by strong adhesive.

[0010] Preferably, one side of the insertion connecting block is fixedly connected to one side of the connecting plate, both ends of the damping elastic member are fixedly connected to one side of the limiting plate, the other side of the limiting plate is fixedly connected to one end of the anti-detachment block, and the outer wall of the anti-detachment block is movably connected to the inner wall of the inner movable groove.

[0011] Beneficial Effects: Compared with the prior art, this utility model provides a spiral-wound polyethylene outer protective insulation pipe with the following beneficial effects: In this spiral-wound polyethylene outer protective insulation pipe, the sealing insertion ring is inserted into the inner side of the sealing insertion ring groove, and the inner side of the sealing insertion ring groove has a sealing strip to enhance the sealing performance. The insertion connecting block is inserted into the inner side of the insertion hole, and the anti-detachment block is inserted into the inner side of the positioning hole through the action of the damping elastic element to enhance stability. This allows the first polyethylene outer protective pipe and the second polyethylene outer protective pipe to be quickly spliced, making the installation and disassembly of the insulation pipe very convenient. No professional welding equipment or skills are required, which greatly shortens the construction time. If there is a fault inside the pipe or it needs to be inspected, the buckle connection can be easily opened for inspection or repair without damaging the pipe. This greatly reduces maintenance costs and time. The limiting plate on the inner side of the inner movable groove plays a role in limiting and preventing detachment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a spiral-wound polyethylene outer protective insulation pipe according to this utility model.

[0013] Figure 2 This is a schematic diagram showing the disassembly of the first and second polyethylene outer protective tubes in a spiral-wound polyethylene outer protective insulation pipe according to this utility model.

[0014] Figure 3 This is a schematic diagram showing the disassembly of the anti-detachment locking block and the insertion connecting block in a spiral-wound polyethylene outer protective insulation pipe according to this utility model.

[0015] Figure 4 This is a schematic diagram of the inverted L-shaped positioning frame, positioning card hole, and insertion hole in a spiral wound polyethylene outer protective insulation pipe according to this utility model.

[0016] In the diagram: 1. First polyethylene outer protective tube; 2. Second polyethylene outer protective tube; 3. First positioning ring; 4. Second positioning ring; 5. Inverted L-shaped positioning frame; 6. Connecting plate; 7. Positioning card hole; 8. Insertion hole; 9. Sealing insertion ring block; 10. Sealing insertion ring groove; 11. Sealing strip; 12. Insertion connecting block; 13. Inner movable groove; 14. Damping elastic element; 15. Limiting plate; 16. Anti-detachment card block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1-4As shown, a spiral-wound polyethylene outer protective insulation pipe includes a first polyethylene outer protective pipe 1 and a second polyethylene outer protective pipe 2. A first positioning ring 3 is fixedly connected to the outer wall of one end of the first polyethylene outer protective pipe 1, and a second positioning ring 4 is fixedly connected to the outer wall of one end of the second polyethylene outer protective pipe 2. An inverted L-shaped positioning frame 5 is fixedly connected to all four sides of the outer wall of the first positioning ring 3, and a connecting plate 6 is fixedly connected to all four sides of the outer wall of the second positioning ring 4. The connecting plate 6 and the inverted L-shaped positioning frame 5 are mutually compatible.

[0019] Furthermore, the inner wall of the first positioning ring 3 is fixedly connected to the outer wall of one end of the first polyethylene outer protective tube 1, the inner wall of the second positioning ring 4 is fixedly connected to the outer wall of one end of the second polyethylene outer protective tube 2, the lower end of the inverted L positioning frame 5 is fixedly connected to the four sides of the outer wall of the first positioning ring 3, and the lower end of the connecting plate 6 is fixedly connected to the four sides of the outer wall of the second positioning ring 4 to enhance the firmness.

[0020] Furthermore, positioning holes 7 are provided at both the upper and lower ends of the inverted L positioning frame 5, and an insertion hole 8 is provided at the front end of the inverted L positioning frame 5, which is interconnected with the positioning hole 7. A sealing insertion ring block 9 is fixedly connected to one end of the first positioning ring 3, and a sealing insertion ring groove 10 is provided on the inner wall of the second positioning ring 4. A sealing strip 11 is fixedly connected to the inner wall of the sealing insertion ring groove 10 to enhance the sealing performance.

[0021] Furthermore, an insertion connecting block 12 is fixedly connected to one side of the connecting plate 6. An inner movable groove 13 is provided on the inner wall of the insertion connecting block 12. A damping elastic element 14 is positioned and installed on the inner wall of the inner movable groove 13. Limiting plates 15 are fixedly connected to both ends of the damping elastic element 14. An anti-detachment block 16 is fixedly connected to one side of the limiting plate 15 to play the role of limiting and preventing detachment.

[0022] Furthermore, one end of the sealing insert ring 9 is fixedly connected to one end of the first positioning ring 3, and one side of the sealing strip 11 is bonded and positioned to the inner wall of the sealing insert ring groove 10 with strong adhesive to enhance the firmness.

[0023] Furthermore, one side of the insertion connecting block 12 is fixedly connected to one side of the connecting plate 6, both ends of the damping elastic member 14 are fixedly connected to one side of the limiting plate 15, and the other side of the limiting plate 15 is fixedly connected to one end of the anti-detachment block 16. The outer wall of the anti-detachment block 16 is movably connected to the inner wall of the inner movable groove 13, which facilitates positioning by inserting it into the inner side of the positioning hole 7.

[0024] Working Principle: A spiral-wound polyethylene outer protective pipe includes a first polyethylene outer protective pipe 1, a second polyethylene outer protective pipe 2, a first positioning ring 3, a second positioning ring 4, an inverted L-shaped positioning frame 5, a connecting plate 6, a positioning card hole 7, an insertion hole 8, a sealing insertion ring block 9, a sealing insertion ring groove 10, a sealing strip 11, an insertion connecting block 12, an inner movable groove 13, a damping elastic element 14, a limiting plate 15, and an anti-detachment card block 16. In use, the sealing insertion ring block 9 is inserted into the inner side of the sealing insertion ring groove 10, and the inner side of the sealing insertion ring groove 10 has a sealing strip 11, which can enhance the sealing performance. The insertion connecting block 12 is inserted into the inner side of the insertion hole 8. The anti-detachment card block 16 is inserted into the inner side of the positioning card hole 7 through the action of the damping elastic element 14, which enhances stability. This allows the first polyethylene outer protective pipe 1 and the second polyethylene outer protective pipe 2 to be quickly spliced ​​together, making the installation and disassembly of the insulation pipe very convenient. No professional welding equipment or skills are required, which greatly shortens the construction time. If there is a fault inside the pipeline or an inspection is needed, the buckle connection can be easily opened for inspection or repair without damaging the pipeline. This greatly reduces maintenance costs and time. The limiting plate 15 plays a role in limiting and preventing detachment inside the inner movable groove 13.

[0025] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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 limitations, 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.

[0026] 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 spiral-wound polyethylene outer protective insulation pipe, comprising a first polyethylene outer protective pipe (1) and a second polyethylene outer protective pipe (2), characterized in that: A first positioning ring (3) is fixedly connected to the outer wall of one end of the first polyethylene outer protective tube (1), and a second positioning ring (4) is fixedly connected to the outer wall of one end of the second polyethylene outer protective tube (2). An inverted L-shaped positioning frame (5) is fixedly connected to all four sides of the outer wall of the first positioning ring (3), and a connecting plate (6) is fixedly connected to all four sides of the outer wall of the second positioning ring (4).

2. The spiral-wound polyethylene outer sheath insulation pipe according to claim 1, characterized in that: The inner wall of the first positioning ring (3) is fixedly connected to the outer wall of one end of the first polyethylene outer protective tube (1), the inner wall of the second positioning ring (4) is fixedly connected to the outer wall of one end of the second polyethylene outer protective tube (2), the lower end of the inverted L positioning frame (5) is fixedly connected to the four sides of the outer wall of the first positioning ring (3), and the lower end of the connecting plate (6) is fixedly connected to the four sides of the outer wall of the second positioning ring (4).

3. The spiral-wound polyethylene outer sheath insulation pipe according to claim 2, characterized in that: The inverted L-shaped positioning frame (5) has positioning holes (7) at both the upper and lower ends. The inverted L-shaped positioning frame (5) has an insertion hole (8) at the front end, which is connected to the positioning hole (7). One end of the first positioning ring (3) is fixedly connected to a sealing insertion ring block (9). The inner wall of the second positioning ring (4) has a sealing insertion ring groove (10), and the inner wall of the sealing insertion ring groove (10) is fixedly connected to a sealing strip (11).

4. The spiral-wound polyethylene outer sheath insulation pipe according to claim 3, characterized in that: An insertion connecting block (12) is fixedly connected to one side of the connecting plate (6). An inner movable groove (13) is provided on the inner wall of the insertion connecting block (12). A damping elastic element (14) is positioned and installed on the inner wall of the inner movable groove (13). Limiting plates (15) are fixedly connected to both ends of the damping elastic element (14). An anti-disengagement block (16) is fixedly connected to one side of the limiting plate (15).

5. The spiral-wound polyethylene outer sheath insulation pipe according to claim 4, characterized in that: One end of the sealing insert ring block (9) is fixedly connected to one end of the first positioning ring (3), and one side of the sealing strip (11) is attached and positioned to the inner wall of the sealing insert ring groove (10) by strong adhesive.

6. The spiral-wound polyethylene outer sheath insulation pipe according to claim 5, characterized in that: One side of the insertion connecting block (12) is fixedly connected to one side of the connecting plate (6), both ends of the damping elastic member (14) are fixedly connected to one side of the limiting plate (15), the other side of the limiting plate (15) is fixedly connected to one end of the anti-detachment block (16), and the outer wall of the anti-detachment block (16) is movably connected to the inner wall of the inner movable groove (13).

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