High-pressure steel-plastic composite pipe

Abstract

The utility model discloses a high-pressure steel-plastic composite pipe which comprises a steel pipe, a plastic inner layer is arranged on the inner wall of the steel pipe, a plastic isolation layer is arranged on the outer wall of the steel pipe, a steel frame is arranged on the outer wall of the plastic isolation layer, and a plastic outer layer is arranged on the outer wall of the steel frame. A plastic filling layer is filled between the plastic outer layer and the plastic isolation layer, plastic rings are fixedly connected to the two ends of the plastic inner layer, the two plastic rings are fixedly connected to the steel pipe, the plastic isolation layer, the steel frame, the plastic outer layer and the plastic filling layer, and a plurality of auxiliary blocks are arranged on the outer wall of the steel frame. The multiple auxiliary blocks penetrate through the plastic outer layer, threaded grooves are formed in the side walls, away from the steel frame, of the multiple auxiliary blocks, and connecting assemblies are arranged at the two ends of the steel frame. According to the utility model, the anti-pressure capability of the pipeline is effectively enhanced, so that the pipeline can work more safely, and the service life of the pipeline is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-plastic composite pipes, in particular to a high-pressure steel-plastic composite pipe. Background Technique

[0002] Steel-plastic composite pipes are a new type of composite pipe. Steel is an iron material, and plastic refers to plastic. The plastic in steel-plastic composite pipes is generally high-density polyethylene, which is a green environmental protection pipe with anti-corrosion, erosion resistance, non-toxicity, and no radiation, and is used for various fluid transportation.

[0003] However, during the installation of existing steel-plastic composite pipes, it is necessary to rely on the outer plastic layer for support, fixation, and connection. The stability is poor, and the device is prone to malfunction due to damage to the plastic layer, reducing the service life of the pipeline.

[0004] Therefore, this solution proposes a high-pressure steel-plastic composite pipe to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and to propose a high-pressure steel-plastic composite pipe.

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

[0007] A high-pressure steel-plastic composite pipe, including a steel pipe, a plastic inner layer is provided on the inner wall of the steel pipe, a plastic isolation layer is provided on the outer wall of the steel pipe, a steel frame is provided on the outer wall of the plastic isolation layer, a plastic outer layer is provided on the outer wall of the steel frame, a plastic filling layer is filled between the plastic outer layer and the plastic isolation layer, both ends of the plastic inner layer are fixedly connected with plastic rings, and both plastic rings are fixedly connected to the steel pipe, plastic isolation layer, steel frame, plastic outer layer, and plastic filling layer. A plurality of auxiliary blocks are provided on the outer wall of the steel frame, and a plurality of auxiliary blocks all penetrate the plastic outer layer. Threaded grooves are provided on the side walls of the plurality of auxiliary blocks away from the steel frame, and connection components are provided at both ends of the steel frame.

[0008] Preferably, the connection component includes a plurality of connecting blocks fixedly connected to the outer wall of the steel frame. One ends of the plurality of connecting blocks away from the steel frame all penetrate the plastic outer layer, and a connecting ring is fixedly connected to the common ends of the plurality of connecting blocks away from the steel frame. A connecting disk is rotatably connected to the connecting ring, and a plurality of connecting ports are provided on the connecting disk and are arranged in central symmetry.

[0009] Preferably, connection bolts are provided in a plurality of the connection ports, and connection nuts are threadedly connected to one ends of the plurality of connection bolts.

[0010] Preferably, two elastic gaskets are sleeved on each of the plurality of connecting bolts.

[0011] Preferably, it further includes a plurality of mounting brackets. One side wall of each of the plurality of mounting brackets is fixedly connected with a mounting rod. One side wall of each of the plurality of mounting rods away from the mounting bracket is fixedly connected with a threaded block, and the plurality of threaded blocks respectively match the plurality of threaded grooves.

[0012] Preferably, an annular groove is provided on the outer wall of the connecting ring, and an annular block is rotatably connected in the annular groove. The annular block is fixedly connected to the inner wall of the connecting disc.

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

[0014] In the present utility model, with the aid of the steel pipe and the internal plastic inner layer, the fluid transportation work is completed stably and safely. At the same time, with the aid of the plastic inner layer and the plastic isolation layer, the steel pipe is effectively protected from corrosion and other damages. At the same time, with the aid of the outer steel frame and the auxiliary block for connection and installation work, the pipeline can be stably and safely installed and fixed. At the same time, with the aid of the settings of the steel frame and the connecting block and other structures, the connecting disc can complete the connection work safely and stably, so that the pipeline can better withstand high pressure. While ensuring the safety of the pipeline transportation work, the internal steel pipe is effectively prevented from being corroded and damaged, and the service life of the device is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front three-dimensional structure schematic diagram of a high-pressure steel-plastic composite pipe proposed by the present utility model;

[0016] Figure 2 It is a back three-dimensional structure schematic diagram of a high-pressure steel-plastic composite pipe proposed by the present utility model;

[0017] Figure 3 It is a partial three-dimensional structure sectional view of the connecting ring of a high-pressure steel-plastic composite pipe proposed by the present utility model;

[0018] Figure 4 It is a partial three-dimensional structure schematic diagram of the mounting bracket of a high-pressure steel-plastic composite pipe proposed by the present utility model.

[0019] In the figure: 1 steel pipe, 2 plastic inner layer, 3 plastic isolation layer, 4 steel frame, 5 plastic outer layer, 6 annular block, 7 plastic ring, 8 threaded groove, 9 connecting block, 10 connecting ring, 11 connecting disc, 12 connecting port, 13 connecting bolt, 14 elastic gasket, 15 mounting bracket, 16 mounting rod, 17 threaded block, 18 auxiliary block, 19 connecting nut, 20 annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] 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.

[0021] Referring to Figures 1-4 , a high-pressure steel-plastic composite pipe includes a steel pipe 1. A plastic inner layer 2 is provided on the inner wall of the steel pipe 1. A plastic isolation layer 3 is provided on the outer wall of the steel pipe 1. A steel frame 4 is provided on the outer wall of the plastic isolation layer 3. A plastic outer layer 5 is provided on the outer wall of the steel frame 4. A plastic filling layer is filled between the plastic outer layer 5 and the plastic isolation layer 3. Both ends of the plastic inner layer 2 are fixedly connected with plastic rings 7. Both plastic rings 7 are fixedly connected to the steel pipe 1, the plastic isolation layer 3, the steel frame 4, the plastic outer layer 5 and the plastic filling layer. In this way, the steel pipe 1 can be completely isolated, so that the steel pipe 1 does not contact the outside world, ensuring the safety of the steel pipe 1. A plurality of auxiliary blocks 18 are provided on the outer wall of the steel frame 4. A plurality of auxiliary blocks 18 all penetrate through the plastic outer layer 5. Thread grooves 8 are provided on one side wall of each of the plurality of auxiliary blocks 18 away from the steel frame 4. The high-pressure steel-plastic composite pipe further includes a plurality of mounting brackets 15. Mounting rods 16 are fixedly connected to one side wall of each of the plurality of mounting brackets 15. Threaded blocks 17 are fixedly connected to one side wall of each of the plurality of mounting rods 16 away from the mounting brackets 15. The plurality of threaded blocks 17 respectively match the plurality of thread grooves 8. In this way, the external fixation of the whole pipeline can be completed by means of the steel frame 4 and the auxiliary blocks 18, and at the same time, the steel pipe 1 will not be contacted, ensuring the pipeline safety, enhancing the compressive capacity of the pipeline, and prolonging the service life of the pipeline;

[0022] Connection components are provided at both ends of the steel frame 4. The connection components include a plurality of connecting blocks 9 fixedly connected to the outer wall of the steel frame 4. One end of each of the plurality of connecting blocks 9 away from the steel frame 4 penetrates through the plastic outer layer 5. A connecting ring 10 is fixedly connected to one end of each of the plurality of connecting blocks 9 away from the steel frame 4. A connecting disc 11 is rotatably connected to the connecting ring 10. An annular groove 20 is provided on the outer wall of the connecting ring 10. An annular block 6 is rotatably connected in the annular groove 20. The annular block 6 is fixedly connected to the inner wall of the connecting disc 11. This setting enables the connecting disc 11 to rotate more stably, and then adjust the relative position of the connection port 12, so that personnel can adjust the alignment of the connection port 12 to complete the connection and fixation work without rotating the overall heavy pipeline body. A plurality of connection ports 12 are provided on the connecting disc 11 and are arranged in central symmetry. Connection bolts 13 are provided in each of the plurality of connection ports 12. One end of each of the plurality of connection bolts 13 is threadedly connected with a connection nut 19. In this way, the connection and fixation work can be conveniently completed. Two elastic gaskets 14 are sleeved on each of the plurality of connection bolts 13. The elastic gaskets 14 can make the connection and fixation work more stable.

[0023] During the use of the present utility model, first, multiple threaded blocks 17 are threadedly connected into the threaded grooves 8 according to requirements to complete the installation and fixation of the mounting frame 15 and the mounting rod 16 on the steel frame 4. Subsequently, the steel frame 4 can be laid at the designated position by means of the mounting frame 15. In this way, the overall laying work of the pipeline can be stably completed by means of the mounting frame 15, enabling the pipeline to better complete the high-pressure conveying work. At the same time, the steel frame 4 and the auxiliary block 18 in contact with the outside are made of steel materials, with high strength. Compared with plastics, the stability of the installation work can be ensured. At the same time, the steel frame 4 does not contact the steel pipe 1, ensuring the safety of the steel pipe 1, enabling the conveying work to proceed smoothly and safely, and extending the service life of the device. When performing the connection work, the operator can rotate the connection disk 11 to align the connection disks 11 on the two pipelines, that is, align the multiple connection ports 12. Then, the connection bolts 13 can be sleeved with elastic gaskets 14 and penetrate through the connection ports 12, and then the connection and fixation work can be completed by means of the connection nuts 19, which is very convenient for the operator to operate and avoids the problem that it is inconvenient for the operator to rotate the entire pipeline to adjust the hole position due to the overall heavy weight of the pipeline.

[0024] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes should be covered within the protection scope of the present utility model.

Claims

1. A high-pressure steel-plastic composite pipe, comprising a steel pipe (1), characterized in that, The inner wall of the steel pipe (1) is provided with a plastic inner layer (2), the outer wall of the steel pipe (1) is provided with a plastic isolation layer (3), the outer wall of the plastic isolation layer (3) is provided with a steel frame (4), the outer wall of the steel frame (4) is provided with a plastic outer layer (5), a plastic filling layer is filled between the plastic outer layer (5) and the plastic isolation layer (3), both ends of the plastic inner layer (2) are fixedly connected with plastic rings (7), and both of the plastic rings (7) are fixedly connected to the steel pipe (1), the plastic isolation layer (3), the steel frame (4), the plastic outer layer (5) and the plastic filling layer. A plurality of auxiliary blocks (18) are arranged on the outer wall of the steel frame (4), and all of the plurality of auxiliary blocks (18) penetrate through the plastic outer layer (5). Threaded grooves (8) are arranged on one side wall of each of the plurality of auxiliary blocks (18) away from the steel frame (4). Connecting components are arranged at both ends of the steel frame (4).

2. The high-pressure steel-plastic composite pipe according to claim 1, characterized in that, The connecting components include a plurality of connecting blocks (9) fixedly connected to the outer wall of the steel frame (4). One end of each of the plurality of connecting blocks (9) away from the steel frame (4) penetrates through the plastic outer layer (5). A connecting ring (10) is fixedly connected to one ends of the plurality of connecting blocks (9) away from the steel frame (4). A connecting disk (11) is rotatably connected to the connecting ring (10). A plurality of connecting ports (12) arranged in central symmetry are arranged on the connecting disk (11).

3. The high-pressure steel-plastic composite pipe according to claim 2, characterized in that, Connecting bolts (13) are arranged in all of the plurality of connecting ports (12). One ends of the plurality of connecting bolts (13) are threadedly connected with connecting nuts (19).

4. A high-pressure steel-plastic composite pipe according to claim 3, characterized in that, Two elastic gaskets (14) are sleeved on all of the plurality of connecting bolts (13).

5. A high-pressure steel-plastic composite pipe according to claim 1, characterized in that It further includes a plurality of mounting brackets (15). Mounting rods (16) are fixedly connected to one side wall of each of the plurality of mounting brackets (15). Threaded blocks (17) are fixedly connected to one side wall of each of the plurality of mounting rods (16) away from the mounting brackets (15). The plurality of threaded blocks (17) are respectively matched with the plurality of threaded grooves (8).

6. The high-pressure steel-plastic composite pipe according to claim 2, wherein An annular groove (20) is arranged on the outer wall of the connecting ring (10). An annular block (6) is rotatably connected in the annular groove (20). The annular block (6) is fixedly connected to the inner wall of the connecting disk (11).

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