Pressure-resistant PVC (polyvinyl chloride) pipe

Abstract

The utility model discloses a pressure-resistant PVC (polyvinyl chloride) pipe, which relates to the technical field of PVC pipes, and comprises a PVC inner pipe, a protective mechanism is arranged on the outer side of the PVC inner pipe, the protective mechanism comprises a buffer component, the buffer component is arranged outside the PVC inner pipe and is used for buffering external force, and the protective mechanism is arranged on the outer side of the PVC inner pipe. The buffering assembly comprises an elastic outer pipe, an elastic piece arranged in the elastic outer pipe and an elastic inner pipe arranged in the elastic piece. And the protection assembly is arranged on the outer side of the buffering assembly, and the protection assembly is used for protecting the PVC inner pipe. The protection mechanism is arranged, the protection outer pipe, the connecting rib and the protection inner pipe of the protection assembly are matched, three protection layers are formed firstly, external force can be well borne, the PVC inner pipe is protected accordingly, meanwhile, the buffering assembly is matched, and the elastic piece, the elastic outer pipe and the elastic inner pipe are matched.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC pipes, and particularly relates to a pressure-resistant PVC pipe. Background Art

[0002] With the development of the plastic field, its PVC pipe technology has become more and more mature. PVC mainly consists of polyvinyl chloride, and is a material added with other components to enhance its heat resistance, toughness and ductility. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. Therefore, PVC pipes are more used in the construction of water conveyance pipes, mainly for circulating water sources.

[0003] Existing common PVC pipes have various colors, and due to the addition of corresponding materials, their properties are also different. For example, some PVC pipes are more cold and heat resistant, or some PVC pipes have better corrosion resistance and longer overall service life.

[0004] However, some PVC pipes mostly have a single pipe structure and do not have a protection mechanism, resulting in poor overall pressure resistance. Moreover, the PVC pipes themselves are mostly buried underground or placed on the ground. When facing external forces, such as the extrusion of the sharp part of a hard stone, the PVC pipes are easily damaged. For this reason, we propose a pressure-resistant PVC pipe. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a pressure-resistant PVC pipe. By setting a protection mechanism and using the cooperation of the protective outer pipe, connecting ribs and protective inner pipe of the protection component, a three-layer protective layer is first formed, which can well withstand external forces to protect the PVC inner pipe. At the same time, in cooperation with the buffer component, by using the cooperation of the elastic member, elastic outer pipe and elastic inner pipe, the external forces received by the protection component are buffered, thereby avoiding damage to the protection component and its PVC inner pipe.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A pressure-resistant PVC pipe, including a PVC inner pipe, and a protection mechanism is arranged on the outer side of the PVC inner pipe. The protection mechanism includes:

[0007] A buffer component, which is arranged outside the PVC inner pipe and is used for buffering external forces. The buffer component includes an elastic outer pipe, an elastic member arranged inside the elastic outer pipe, and an elastic inner pipe arranged inside the elastic member;

[0008] A protection component, which is arranged outside the buffer component and is used for protecting the PVC inner pipe.

[0009] Preferably, the number of the elastic members is set to be multiple, and the multiple elastic members are circumferentially arrayed with the center of the tube core of the elastic outer tube as the array center. The elastic member includes an arc-shaped piece arranged between the elastic outer tube and the elastic inner tube, a fixing column arranged inside the arc-shaped piece, and a plurality of connecting bars arranged on the side of the fixing column.

[0010] Preferably, the protection component includes a protection inner tube arranged on the outer surface of the buffer component, a protection outer tube arranged outside the protection inner tube, and a plurality of connecting ribs arranged between the protection inner tube and the protection outer tube.

[0011] Preferably, the buffer component further includes a plurality of connecting pieces, and the plurality of connecting pieces and the plurality of elastic members are arranged in an alternating manner.

[0012] Preferably, each of the connecting ribs is in an "×" shape, and the protection component is made of plastic.

[0013] Preferably, the number of the connecting bars on each elastic member is set to be four, and the buffer component is made of silicone rubber.

[0014] Preferably, the protection component, the buffer component and the PVC inner tube are connected by a thermoplastic adhesive, and the thermoplastic adhesive is specifically hot melt adhesive.

[0015] The technical effects and advantages of the present utility model:

[0016] By using the protection component for protection, it is avoided that external force directly acts on the PVC inner tube, resulting in damage to the PVC inner tube. And when an external force acts on the protection component, the acting force will squeeze the buffer component, so that the elastic outer tube, the elastic members and the elastic inner tube deform. Among them, the deformation of the elastic members is mainly used for buffering, so as to avoid too rigid contact between the protection component and the external force, directly causing damage to the protection component. This design uses the cooperation of the protection outer tube, the connecting ribs and the protection inner tube of the protection component to first form a three-layer protection layer, which can well withstand external forces, thereby protecting the PVC inner tube. At the same time, in cooperation with the buffer component, by using the cooperation of the elastic members, the elastic outer tube and the elastic inner tube, the external force received by the protection component is buffered, so as to improve the pressure resistance of the PVC inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of the present utility model.

[0018] Figure 2 is a schematic internal structure diagram of the present utility model.

[0019] Figure 3 is the present utility model Figure 2 partial enlarged structure diagram at A in.

[0020] In the figure: 1. Protection component; 101. Outer protection tube; 102. Connecting rib; 103. Inner protection tube; 2. Buffer component; 201. Elastic outer tube; 202. Elastic part; 2021. Arc-shaped piece; 2022. Fixed column; 2023. Connecting bar; 203. Elastic inner tube; 204. Connecting piece; 3. PVC inner tube. Specific embodiments

[0021] 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 work shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a pressure-resistant PVC pipe as Figures 1-3 shown, which includes a PVC inner tube 3. A protection mechanism is provided on the outer side of the PVC inner tube 3. The protection mechanism includes: a buffer component 2, the buffer component 2 is arranged outside the PVC inner tube 3, and the buffer component 2 is used to buffer external forces. The buffer component 2 includes an elastic outer tube 201, an elastic part 202 arranged inside the elastic outer tube 201, and an elastic inner tube 203 arranged inside the elastic part 202; a protection component 1, the protection component 1 is arranged outside the buffer component 2, and the protection component 1 is used to protect the PVC inner tube 3; when an external force acts on the entire PVC pipe, the external force acts on the protection component 1 first, and the protection component 1 is used for protection to prevent the external force from directly acting on the PVC inner tube 3, such as a sharp stone, resulting in damage to the PVC inner tube 3. And when the external force acts on the protection component 1, the acting force will squeeze the buffer component 2, so that the elastic outer tube 201, the elastic part 202 and the elastic inner tube 203 deform. Among them, the deformation of the elastic part 202 is mainly used for buffering, so as to avoid too rigid contact between the protection component 1 and the external force, directly causing damage to the protection component 1, and making the protection component 1 unable to play a good protection role anymore.

[0023] It should be further noted that the number of elastic members 202 is set to be multiple, and the multiple elastic members 202 are arranged in a circumferential array with the center of the tube core of the elastic outer tube 201 as the array center. The elastic member 202 includes an arc-shaped piece 2021 arranged between the elastic outer tube 201 and the elastic inner tube 203, a fixing column 2022 arranged inside the arc-shaped piece 2021, and a plurality of connecting bars 2023 arranged on the side of the fixing column 2022. When an external force acts on the buffer assembly 2, it will squeeze the elastic outer tube 201, the elastic inner tube 203 and its elastic members 202, causing the arc-shaped piece 2021, the fixing column 2022 and the connecting bars 2023 to deform. There is a gap inside the arc-shaped piece 2021, which is convenient for the protection assembly 1 to have a certain moving space. At the same time, with the cooperation of the fixing column 2022 and its connecting bars 2023, the entire elastic member 202 will not be deformed greatly, resulting in the elastic member 202 being unable to recover. And after the external force is removed, the fixing column 2022 and the connecting bars 2023 will quickly recover, so that the entire buffer assembly 2 recovers. At the same time, the setting of the connecting bars 2023 can better connect the fixing column 2022, the arc-shaped piece 2021, the elastic outer tube 201 and the elastic inner tube 203, avoiding the phenomenon of fracture at the connection, so that the PVC pipe has buffer performance and improves the pressure resistance effect.

[0024] It should be especially noted that the protection assembly 1 includes a protection inner tube 103 arranged on the outer surface of the buffer assembly 2, a protection outer tube 101 arranged on the outside of the protection inner tube 103, and a plurality of connecting ribs 102 arranged between the protection inner tube 103 and the protection outer tube 101. Each connecting rib 102 is in an "×" shape, and the protection assembly 1 is made of plastic. When an external force acts on the protection assembly 1, it will first squeeze the protection outer tube 101. Even if the protection outer tube 101 is damaged, the connecting ribs 102 can still contact the external force for protection. Even if the connecting ribs 102 are damaged, the protection inner tube 103 can still contact the external force for protection. Among them, the connecting ribs 102 are arranged in an "×" shape, which has better anti-fracture performance compared with a single vertical piece, so that it can better connect and support, making the protection assembly 1 have good protection ability, thereby improving the pressure resistance performance of the PVC pipe.

[0025] It should be noted that the buffer assembly 2 further includes a plurality of connecting pieces 204, and the plurality of connecting pieces 204 and the plurality of elastic members 202 are arranged in an interlaced manner. The number of connecting bars 2023 on each elastic member 202 is set to four, and the buffer assembly 2 is made of silicone rubber. By setting the connecting pieces 204, the elastic outer tube 201 and the elastic inner tube 203 can be further connected, thus avoiding the phenomenon of deviation, making the structure of the entire buffer assembly 2 more stable. At the same time, the buffer assembly 2 utilizes the good flexibility and elasticity of silicone rubber, further making the buffer assembly 2 have good buffer performance.

[0026] Further, the protection component 1, the buffer component 2 and the PVC inner tube 3 are connected by a thermoplastic adhesive, and the thermoplastic adhesive is specifically hot melt adhesive; it is convenient to connect the PVC inner tube 3, the protection component 1 and the buffer component 2.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pressure-resistant PVC pipe, comprising a PVC inner pipe (3), characterized in that, A protection mechanism is provided on the outer side of the PVC inner tube (3), and the protection mechanism includes: A buffer assembly (2), the buffer assembly (2) is disposed outside the PVC inner tube (3), and the buffer assembly (2) is used for buffering external forces. The buffer assembly (2) includes an elastic outer tube (201), an elastic member (202) disposed inside the elastic outer tube (201), and an elastic inner tube (203) disposed inside the elastic member (202); A protection assembly (1), the protection assembly (1) is disposed outside the buffer assembly (2), and the protection assembly (1) is used for protecting the PVC inner tube (3).

2. A pressure-resistant PVC pipe according to claim 1, characterized in that, The number of the elastic members (202) is set to be multiple, and the multiple elastic members (202) are circumferentially arrayed with the tube center of the elastic outer tube (201) as the array center. The elastic member (202) includes an arc-shaped piece (2021) disposed between the elastic outer tube (201) and the elastic inner tube (203), a fixing column (2022) disposed inside the arc-shaped piece (2021), and a plurality of connecting strips (2023) disposed on the side of the fixing column (2022).

3. A pressure-resistant PVC pipe according to claim 1, characterized in that, The protection assembly (1) includes a protection inner tube (103) disposed on the outer surface of the buffer assembly (2), a protection outer tube (101) disposed outside the protection inner tube (103), and a plurality of connecting ribs (102) disposed between the protection inner tube (103) and the protection outer tube (101).

4. A pressure-resistant PVC pipe according to claim 2, characterized in that, The buffer assembly (2) further includes a plurality of connecting pieces (204), and the plurality of connecting pieces (204) and the plurality of elastic members (202) are arranged in an interlaced manner.

5. A pressure-resistant PVC pipe according to claim 3, wherein, Each of the connecting ribs (102) is in an "×" shape, and the protection assembly (1) is made of plastic.

6. A pressure-resistant PVC pipe according to claim 4, characterized in that, The number of the connecting strips (2023) on each elastic member (202) is set to be four, and the buffer assembly (2) is made of silicone rubber.

7. A pressure-resistant PVC pipe according to claim 1, characterized in that, The protection assembly (1), the buffer assembly (2) and the PVC inner tube (3) are connected by a thermoplastic adhesive, and the thermoplastic adhesive is specifically hot melt adhesive.

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