Composite pipe

Abstract

The utility model provides a composite pipe, and relates to the technical field of PPR composite pipeline design, the composite pipe comprises an outer layer pipe, the inner wall of the outer layer pipe is fixedly connected with a sandwich plate, the inner wall of the sandwich plate is fixedly connected with an inner layer pipe, the surface of the outer layer pipe is fixedly connected with a fixing lantern ring, the top of the fixing lantern ring is fixedly connected with a fixing clamping pipe, and the fixing clamping pipe is fixedly connected with an outer layer pipe. A connecting rod is slidably connected to the interior of the telescopic rod, and a threaded ring is arranged on the surface of the connecting rod. According to the composite pipeline, by designing the structures such as the inner layer pipe and the connecting rod and arranging the interlayer plate and the inner layer pipe in the outer layer pipe, the strength of the composite pipeline is improved, the service life of the composite pipeline is prolonged, permeation of sunlight is effectively isolated, breeding of bacteria is eradicated, and the quality of conveyed water is optimized; the connection between the two sections of composite pipes is firmer, and the situation that water in the composite pipes permeates due to the fact that the joints of the composite pipes loosen slowly after long-term use is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PPR composite pipeline design, in particular to a composite pipe. Background Art

[0002] PPR composite pipelines are often made of two or more different materials, which are tightly bonded together throughout the length of the pipeline. The specific material combination can be adjusted according to application requirements and is usually used in fields such as building water supply and drainage systems, cable protection, ventilation systems, etc. However, in the prior art, when existing traditional composite pipes are buried underground, some places are buried deep and some are buried shallow. In the places where the pipes are buried shallowly, when a heavy truck passes by, due to the lack of an external strengthening mechanism, the pipes may be damaged. At the same time, the long-term vibration transmitted from the ground to the composite pipeline will cause the connections between the composite pipelines to become loose, resulting in water seepage inside the composite pipe, and there are certain technical defects. Content of the Utility Model

[0003] The purpose of the utility model is to solve the defect that in the prior art, in the places where the pipes are buried relatively shallowly, when a heavy truck passes by, due to the lack of an external strengthening mechanism, the pipes may be damaged, and to propose a composite pipe.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A composite pipe includes an outer layer pipe, an inner layer pipe is fixedly connected to the inner wall of the outer layer pipe, a sandwich plate is fixedly connected to the inner wall of the sandwich plate, a fixing collar is fixedly connected to the surface of the outer layer pipe, a rubber gasket is fixedly connected to the inner wall of the fixing collar, a fixing clamping pipe is fixedly connected to the top of the fixing collar, a telescopic rod is fixedly connected to the bottom of the fixing collar, a connecting rod is slidably connected to the inside of the telescopic rod, and a threaded ring is arranged on the surface of the connecting rod.

[0005] As a preferred embodiment, one end of the inner layer pipe extends beyond the outside of the outer layer pipe by a certain distance, and a distance is left between the end of the inner layer pipe and the bottom end of the outer layer pipe, which is the same as the distance that one end of the inner layer pipe extends beyond the outside of the outer layer pipe, and threads are arranged on the surface of the inner layer pipe that extends beyond the outside of the outer layer pipe by a certain distance.

[0006] The technical effect of adopting the above further scheme is that a distance is left between the end of the inner layer pipe and the bottom end of the outer layer pipe, which is the same as the distance that one end of the inner layer pipe extends beyond the outside of the outer layer pipe, facilitating the exact close connection of the beginning and end of two adjacent sections of composite pipes.

[0007] As a preferred embodiment, threaded grooves are formed on the surface of the sandwich plate, and the threaded grooves formed on the surface of the sandwich plate are meshed with the threads arranged on the surface of the inner layer pipe.

[0008] The technical effect of adopting the above further solution is as follows: It is convenient for the inner pipe thread of the next section of the composite pipe to be connected to the thread groove at the end of the outer pipe of the previous section, enabling threaded connection between two sections of the composite pipe.

[0009] As a preferred embodiment, anti-slip grooves are provided on the outer surface of the thread ring, and thread grooves are provided inside the thread ring.

[0010] The technical effect of adopting the above further solution is as follows: The design of the anti-slip grooves on the outer surface of the thread ring facilitates the rotation of the thread ring on the surfaces of the connecting rod and the fixed clamping pipe, and the thread grooves inside the thread ring can be threadedly connected to the surfaces of the fixed clamping pipe and the connecting rod.

[0011] As a preferred embodiment, threads are provided on the surface of the fixed clamping pipe, and four empty grooves are provided on the surface of the fixed clamping pipe, and the threads provided on the surface of the fixed clamping pipe are adapted to the thread grooves provided on the inner wall of the thread ring.

[0012] The technical effect of adopting the above further solution is as follows: Four empty grooves are provided on the surface of the fixed clamping pipe, endowing the fixed clamping pipe with a certain toughness, enabling the inner wall of the fixed clamping pipe to closely adhere to the surface of the connecting rod, and at the same time enabling threaded connection between the fixed clamping pipe and the thread ring.

[0013] As a preferred embodiment, the outer diameter of the connecting rod is slightly smaller than the inner diameter of the fixed clamping pipe, threads are provided on the surface of the connecting rod, and the threads provided on the surface of the connecting rod are adapted to the thread grooves on the inner wall of the thread ring.

[0014] The technical effect of adopting the above further solution is as follows: The outer diameter of the connecting rod is smaller than the inner diameter of the fixed clamping pipe, enabling the connecting rod to penetrate inside the fixed clamping pipe, and at the same time enabling threaded connection between the telescopic rod and the thread ring.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0016] In the present utility model, by designing structures such as the inner pipe and the connecting rod, a sandwich plate and an inner pipe are arranged inside the outer pipe, increasing the strength of the composite pipe. At the same time, the connecting rod provides enhanced protection outside, with the secondary strength enhancement ensuring the service life of the pipe. Moreover, due to the use of a co-extrusion process with a special material for the inner pipe of the inner layer, it can effectively isolate the penetration of sunlight, prevent the breeding of bacteria, optimize the transported water quality. At the same time, the connecting rod is embedded inside the fixed clamping pipe, and the fixed clamping pipe and the connecting rod are fixed through the thread ring, making the connection between two sections of the composite pipe more firm, avoiding the slow loosening between the joints of the composite pipe during long-term use, and preventing the water inside the composite pipe from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional view of a composite pipe provided by the present utility model;

[0018] Figure 2 Exploded perspective view of a composite pipe provided by the present utility model;

[0019] Figure 3 Cross-sectional view of a composite pipe provided by the present utility model;

[0020] Figure 4 Partial perspective view of a composite pipe provided by the present utility model.

[0021] Legend:

[0022] 1. Outer layer pipe; 2. Sandwich panel; 3. Inner layer pipe; 4. Fixed collar; 41. Rubber gasket; 5. Fixed clamping pipe; 6. Telescopic rod; 61. Connecting rod; 7. Threaded ring. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As Figures 1-4 shown, the present utility model provides a technical solution: a composite pipe, including an outer layer pipe 1 made of PPR material with certain strength. The inner wall of the outer layer pipe 1 is fixedly connected with a sandwich panel 2 made of polypropylene foam, which is light in weight, has good heat resistance and chemical corrosion resistance, and at the same time has certain seismic resistance. The surface of the sandwich panel 2 is provided with threaded grooves, and the threaded grooves provided on the surface of the sandwich panel 2 are engaged with the threads provided on the surface of the inner layer pipe 3. The inner wall of the sandwich panel 2 is fixedly connected with an inner layer pipe 3. One end of the inner layer pipe 3 extends beyond the outer layer pipe 1 by a certain distance. The end of the inner layer pipe 3 leaves a distance from the bottom end of the outer layer pipe 1 that is the same as the distance by which one end of the inner layer pipe 3 extends beyond the outer layer pipe 1, and threads are provided on the surface of the inner layer pipe 3 that extends beyond the outer layer pipe 1 by a certain distance.

[0026] In this embodiment, it should be emphasized that the surface of the sandwich panel 2 is provided with threaded grooves, which are provided at a position where the end of the inner layer pipe 3 leaves a distance from the bottom end of the outer layer pipe 1, and the material used for the threaded grooves is the same as the material for making the inner layer pipe 3 and is attached to the surface of the sandwich panel 2.

[0027] Embodiment 2

[0028] As Figures 1-4As shown in the figure, a fixed collar 4 is fixedly connected to the surface of the outer layer pipe 1. The fixed collar 4 extends beyond the surface of the outer layer pipe 1. When connecting the lower section of the composite pipe, it can block the connection gap and prevent dust from entering the pipe for a long time to pollute the water source. A rubber gasket 41 is fixedly connected to the inner wall of the fixed collar 4. A fixed clamping pipe 5 is fixedly connected to the top of the fixed collar 4. Threads are provided on the surface of the fixed clamping pipe 5, and four empty grooves are opened on the surface of the fixed clamping pipe 5. The threads provided on the surface of the fixed clamping pipe 5 are adapted to the thread grooves opened on the inner wall of the thread ring 7. A telescopic rod 6 is fixedly connected to the bottom of the fixed collar 4. A connecting rod 61 is slidably connected inside the telescopic rod 6. The outer diameter of the connecting rod 61 is slightly smaller than the inner diameter of the fixed clamping pipe 5, so that the connecting rod 61 can penetrate inside the fixed clamping pipe 5. Threads are provided on the surface of the connecting rod 61, and the threads provided on the surface of the connecting rod 61 are adapted to the thread grooves on the inner wall of the thread ring 7. A thread ring 7 is provided on the surface of the connecting rod 61. Anti-slip grooves are opened on the outer surface of the thread ring 7, and thread grooves are opened inside the thread ring 7.

[0029] In this embodiment, after adjacent composite pipes are connected, the inner wall of the rubber gasket 41 fits tightly against the surface of the outer layer pipe 1, increasing the sealing performance at the connection of the composite pipes. When the inner layer pipe 3 rotates to the end, one end of the connecting rod 61 aligns exactly with one end of the fixed clamping pipe 5, enabling the connecting rod 61 to be smoothly inserted into the fixed clamping pipe 5.

[0030] Working principle:

[0031] As Figures 1-4 shown in the figure, by designing structures such as the inner layer pipe 3 and the connecting rod 61, one end of the inner layer pipe 3 is inserted into the inside of the upper section of the composite pipe. The inner layer pipe 3 is rotated so that the inner wall of the rubber gasket 41 fits tightly against the outer surface of the outer layer pipe 1. When the inner layer pipe 3 is rotated to the end, the connecting rod 61 aligns with one end of the fixed clamping pipe 5. The connecting rod 61 slides out from the inside of the telescopic rod 6, enabling one end of the connecting rod 61 to be inserted into the fixed clamping pipe 5. The thread ring 7 is rotated so that the thread ring 7 is threadedly connected to the threads on the surface of the fixed clamping pipe 5 at the connection between the fixed clamping pipe 5 and the connecting rod 61. The inner wall of the fixed clamping pipe 5 presses tightly against the surface of the connecting rod 61, thus tightening the connection between the composite pipes.

[0032] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A composite pipe, comprising an outer layer pipe (1), characterized in that: The inner wall of the outer tube (1) is fixedly connected to a sandwich plate (2), the inner wall of the sandwich plate (2) is fixedly connected to an inner tube (3), the surface of the outer tube (1) is fixedly connected to a fixing collar (4), the inner wall of the fixing collar (4) is fixedly connected to a rubber ring gasket (41), the top of the fixing collar (4) is fixedly connected to a fixing clamping tube (5), the bottom of the fixing collar (4) is fixedly connected to a telescopic rod (6), the inside of the telescopic rod (6) is slidably connected to a connecting rod (61), and the surface of the connecting rod (61) is provided with a threaded ring (7).

2. A composite pipe according to claim 1, characterized in that: One end of the inner tube (3) extends beyond the outer tube (1) by a certain distance, the end of the inner tube (3) is spaced from the bottom of the outer tube (1) by a distance equal to the distance that one end of the inner tube (3) extends beyond the outer tube (1), and threads are provided on the surface of the inner tube (3) that extends beyond the outer tube (1) by a certain distance.

3. A composite pipe according to claim 2, characterized in that: The surface of the sandwich plate (2) is provided with a thread groove, and the thread groove provided on the surface of the sandwich plate (2) is meshed with the thread provided on the surface of the inner tube (3).

4. A composite pipe according to claim 1, characterized in that: The outer surface of the threaded ring (7) is provided with an anti-slip groove, and the interior of the threaded ring (7) is provided with a threaded groove.

5. The composite pipe according to claim 1, characterized in that: The surface of the fixed clamping tube (5) is provided with threads, and the surface of the fixed clamping tube (5) is provided with four empty grooves, and the threads provided on the surface of the fixed clamping tube (5) are matched with the thread grooves provided on the inner wall of the thread ring (7).

6. A composite pipe according to claim 1, characterized in that: The outer diameter of the connecting rod (61) is slightly smaller than the diameter of the inner ring of the fixed clamping tube (5). The surface of the connecting rod (61) is provided with threads, and the threads provided on the surface of the connecting rod (61) are adapted to the thread grooves on the inner wall of the threaded ring (7).

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