Polypropylene composite pipe with high thermal insulation property

Abstract

The utility model discloses a polypropylene composite pipe with high heat preservation property, which belongs to the technical field of pipes and comprises a protective layer, a connecting sleeve is arranged at the top of the protective layer, transverse rods are fixedly mounted at the tops and the bottoms of the left side and the right side of an inner cavity of the connecting sleeve, and movable plates are movably sleeved on the outer sides of the transverse rods on the left side and the right side. Positioning rods are fixedly mounted at the tops and the bottoms of the corresponding sides of the moving plates, pull rods are fixedly mounted on the sides, away from each other, of the moving plates, rectangular grooves are fixedly formed in the left side and the right side of the connecting sleeve, vertical rods are fixedly mounted at the tops and the bottoms of inner cavities of the rectangular grooves, and sliding plates movably sleeve the outer sides of the vertical rods; and a limiting rod is fixedly mounted at the top of the sliding plate. According to the polypropylene composite pipe splicing device, polypropylene composite pipes can be quickly spliced, the splicing efficiency of the polypropylene composite pipes is improved, the pull rod can be limited, the stability of the pull rod is improved, and the polypropylene composite pipes are prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of pipes, in particular to a polypropylene composite pipe with high thermal insulation performance. Background Art

[0002] Polypropylene composite pipe is a water supply pipe material that combines the advantages of metal and thermoplastics. In addition to building water supply systems, it can also be used in chemical, petroleum, chlor-alkali and other industries to meet different industrial needs.

[0003] The patent document with the publication number CN219317852U discloses a polypropylene composite pipe, including a pipe body, the pipe body including a polypropylene inner pipe, a polyethylene outer pipe and an intermediate reinforced pipe wall; the intermediate reinforced pipe wall is a grid tubular structure, the intermediate reinforced pipe wall is located between the polypropylene inner pipe and the polyethylene outer pipe, and the intermediate reinforced pipe wall is connected to the polypropylene inner pipe or polyethylene by hot-melt as a whole. By arranging a polyethylene outer pipe outside the polypropylene inner pipe, utilizing the excellent low temperature resistance (the lowest operating temperature can reach -100 to -70°C) and good impact resistance of polyethylene, and cooperating with the intermediate reinforced pipe wall with a grid tubular structure, the pipe as a whole has good toughness and low temperature impact resistance, thereby ensuring the service life and impact resistance of the pipe in a low temperature environment.

[0004] The device in the above technical solution is not convenient for directly splicing two polypropylene composite pipes. Workers need to use tools to splice the polypropylene composite pipes, which reduces the work efficiency of the workers and the practicality of the device. Therefore, we propose a highly thermally insulating polypropylene composite pipe to solve this problem. Utility Model Content

[0005] The utility model aims to provide a polypropylene composite pipe with high thermal insulation performance to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A polypropylene composite pipe with high thermal insulation performance comprises a protective layer, a connecting sleeve is arranged on the top of the protective layer, cross bars are fixedly installed on the top and bottom of the left and right sides of the inner cavity of the connecting sleeve, movable plates are movably sleeved on the outer sides of the cross bars on the left and right sides, positioning rods are fixedly installed on the top and bottom of the corresponding side of the movable plate, and a pull rod is fixedly installed on the side away from the movable plate, rectangular grooves are fixedly opened on the left and right sides of the connecting sleeve, vertical rods are fixedly installed on the top and bottom of the inner cavity of the rectangular groove, a slide plate is movably sleeved on the outer side of the vertical rod, and a limiting rod is fixedly installed on the top of the slide plate.

[0008] Preferably, the top of the protective layer extends to the interior of the connecting sleeve, the corresponding side of the positioning rod movably passes through the connecting sleeve, the corresponding side of the positioning rod at the bottom extends to the interior of the protective layer, and the top and bottom of the left and right sides of the protective layer are provided with positioning grooves that are compatible with the positioning rod, and a sealing gasket is fixedly installed in the inner cavity of the connecting sleeve.

[0009] Preferably, the side of the pull rod that is away from each other movably passes through the connecting sleeve and is fixedly connected with a pull ring, the top of the limit rod passes through the pull rod, and the outer side of the slide plate is in sliding contact with the inner cavity of the rectangular groove.

[0010] Preferably, a first spring is fixedly connected to the side of the movable plate away from each other, and the side of the first spring away from each other is fixedly connected to the inner wall of the connecting sleeve, and the first spring sleeve is arranged on the outer side of the pull rod.

[0011] Preferably, a second spring is fixedly connected to the top of the slide plate, the top of the second spring is fixedly connected to the top of the inner cavity of the rectangular groove, and the second spring is sleeved on the outer side of the vertical rod.

[0012] Preferably, the inner wall of the protective layer is fixedly connected to the thermal insulation layer, and the inner wall of the thermal insulation layer is fixedly connected to the inner layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a movable plate, a pull rod, a pull ring, a positioning rod and a first spring are used in coordination. By pulling the pull rings on the left and right sides to move away from each other, the pull rings drive the pull rods to move away from each other, and the pull rods drive the movable plates to move away from each other. At the same time, the first spring is compressed, and the movable plate drives the positioning rods to move away from each other, so that the positioning rods are away from the positioning grooves on the protective layer. The polypropylene composite pipes can be spliced ​​quickly, thereby improving the splicing efficiency of the polypropylene composite pipes.

[0015] 2. In the utility model, the rectangular groove, the vertical rod, the slide plate, the limit rod and the second spring are used in coordination. By pressing the left and right slide plates to move downward, the slide plates drive the limit rod to move downward, and at the same time stretch the second spring to make the top of the limit rod away from the pull rod, so that the pull rod can be limited, the stability of the pull rod is improved, and the polypropylene composite pipe is prevented from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a polypropylene composite pipe with high thermal insulation performance proposed by the utility model;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of a polypropylene composite pipe with high thermal insulation performance proposed by the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged view of part A.

[0019] In the figure: 1. protective layer; 2. connecting sleeve; 3. cross bar; 4. movable plate; 5. pull rod; 6. pull ring; 7. positioning rod; 8. first spring; 9. rectangular groove; 10. vertical rod; 11. slide plate; 12. limit rod; 13. second spring; 14. positioning groove; 15. insulation layer; 16. inner layer; 17. sealing gasket. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 A polypropylene composite pipe with high thermal insulation performance comprises a protective layer 1, a connecting sleeve 2 is arranged on the top of the protective layer 1, cross bars 3 are fixedly installed on the top and bottom of the left and right sides of the inner cavity of the connecting sleeve 2, and movable plates 4 are movably sleeved on the outer sides of the cross bars 3 on the left and right sides, and positioning rods 7 are fixedly installed on the top and bottom of the corresponding side of the movable plate 4, and a pull rod 5 is fixedly installed on the side away from the movable plate 4, and rectangular grooves 9 are fixedly opened on the left and right sides of the connecting sleeve 2, and vertical rods 10 are fixedly installed on the top and bottom of the inner cavity of the rectangular groove 9, and a slide plate 11 is movably sleeved on the outer side of the vertical rod 10, and a limiting rod 12 is fixedly installed on the top of the slide plate 11.

[0022] In this embodiment, the top of the protective layer 1 extends to the interior of the connecting sleeve 2, and the side corresponding to the positioning rod 7 movably penetrates the connecting sleeve 2, and the side corresponding to the bottom positioning rod 7 extends to the interior of the protective layer 1. The top and bottom of the left and right sides of the protective layer 1 are provided with positioning grooves 14 adapted to the positioning rod 7. The inner cavity of the connecting sleeve 2 is fixedly installed with a sealing gasket 17, and the side away from the pull rod 5 movably penetrates the connecting sleeve 2 and is fixedly connected with a pull ring 6. The top of the limiting rod 12 penetrates the pull rod 5, and the outer side of the slide plate 11 is in sliding contact with the inner cavity of the rectangular groove 9. The sealing gasket 17 can improve the sealing of the connection of the polypropylene composite pipe.

[0023] In this embodiment, the side of the movable plate 4 that is away from each other is fixedly connected with the first spring 8, and the side of the first spring 8 that is away from each other is fixedly connected to the inner wall of the connecting sleeve 2. The first spring 8 is sleeved on the outside of the pull rod 5. The top of the slide plate 11 is fixedly connected with the second spring 13, and the top of the second spring 13 is fixedly connected to the top of the inner cavity of the rectangular groove 9. The second spring 13 is sleeved on the outside of the vertical rod 10. The inner wall of the protective layer 1 is fixedly connected with the thermal insulation layer 15, and the inner wall of the thermal insulation layer 15 is fixedly connected with the inner layer 16. Through the thermal insulation layer 15, it has excellent thermal insulation performance and improves the thermal insulation effect.

[0024] In the present embodiment, when in use, by pulling the pull rings 6 on the left and right sides to move away from each other, the pull rings 6 drive the pull rods 5 to move away from each other, the pull rods 5 drive the movable plates 4 to move away from each other, and at the same time compressing the first spring 8, the movable plates 4 drive the positioning rods 7 to move away from each other, so that the positioning rods 7 are away from the positioning grooves 14 on the protective layer 1, the polypropylene composite pipes can be quickly spliced, and the splicing efficiency of the polypropylene composite pipes is improved, and by pressing the left and right slides 11 to move downward, the slides 11 drive the limiting rod 12 to move downward, and at the same time stretching the second spring 13, so that the top of the limiting rod 12 is away from the pull rod 5, the pull rod 5 can be limited, the stability of the pull rod 5 is improved, and the polypropylene composite pipe is prevented from falling off.

[0025] The above is a detailed introduction to a polypropylene composite pipe with high thermal insulation provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A polypropylene composite pipe with high thermal insulation performance, comprising a protective layer (1), characterized in that: A connecting sleeve (2) is provided on the top of the protective layer (1), and cross bars (3) are fixedly installed on the top and bottom of the left and right sides of the inner cavity of the connecting sleeve (2), and movable plates (4) are movably sleeved on the outer sides of the cross bars (3) on the left and right sides, and positioning rods (7) are fixedly installed on the top and bottom of the corresponding side of the movable plate (4), and a pull rod (5) is fixedly installed on the side away from the movable plate (4), and rectangular grooves (9) are fixedly opened on the left and right sides of the connecting sleeve (2), and vertical rods (10) are fixedly installed on the top and bottom of the inner cavity of the rectangular groove (9), and a slide plate (11) is movably sleeved on the outer side of the vertical rod (10), and a limiting rod (12) is fixedly installed on the top of the slide plate (11).

2. The polypropylene composite pipe with high thermal insulation performance according to claim 1, characterized in that: The top of the protective layer (1) extends to the interior of the connecting sleeve (2), the corresponding side of the positioning rod (7) movably penetrates the connecting sleeve (2), and the corresponding side of the bottom of the positioning rod (7) extends to the interior of the protective layer (1), and the top and bottom of the left and right sides of the protective layer (1) are provided with positioning grooves (14) adapted to the positioning rod (7), and the inner cavity of the connecting sleeve (2) is fixedly installed with a sealing gasket (17).

3. The polypropylene composite pipe with high thermal insulation performance according to claim 1, characterized in that: The side of the pull rod (5) that is away from each other movably penetrates the connecting sleeve (2) and is fixedly connected to a pull ring (6); the top of the limit rod (12) penetrates the pull rod (5); and the outer side of the slide plate (11) is in sliding contact with the inner cavity of the rectangular groove (9).

4. The polypropylene composite pipe with high thermal insulation performance according to claim 1, characterized in that: A first spring (8) is fixedly connected to the side of the movable plate (4) that is away from the movable plate (4), and the side of the first spring (8) that is away from the movable plate (4) is fixedly connected to the inner wall of the connecting sleeve (2), and the first spring (8) is sleeved on the outside of the pull rod (5).

5. The polypropylene composite pipe with high thermal insulation performance according to claim 1, characterized in that: A second spring (13) is fixedly connected to the top of the slide plate (11), the top of the second spring (13) is fixedly connected to the top of the inner cavity of the rectangular groove (9), and the second spring (13) is sleeved on the outside of the vertical rod (10).

6. The polypropylene composite pipe with high thermal insulation performance according to claim 1, characterized in that: The inner wall of the protective layer (1) is fixedly connected to a heat-insulating layer (15), and the inner wall of the heat-insulating layer (15) is fixedly connected to an inner layer (16).

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