Wear-resistant and high-temperature-resistant PVC (polyvinyl chloride) pipe

Abstract

The utility model belongs to the technical field of PVC (polyvinyl chloride) pipelines, and provides a wear-resistant and high-temperature-resistant PVC pipe, which comprises a main pipe body and a branch pipe body, two ends of the main pipe body and the branch pipe body are respectively provided with an insertion end and a butt joint end, an annular groove is arranged on the outer side of the main pipe body, and a threaded pipe is further mounted on the outer side of the main pipe body. The threaded pipe is movably connected to the outer side of the main pipe body through the annular groove, and the outer side of the threaded pipe is in threaded connection with a threaded sleeve. The threaded pipe is rotated in the state that the position of the annular groove in the outer side of the main pipe body is kept unchanged, so that the threaded pipe is in threaded connection with the threaded sleeve, the connecting position of the main pipe body and the branch pipe body is shielded, and the main pipe body and the branch pipe body are connected in cooperation with pipe glue at the connecting position of the main pipe body and the branch pipe body; therefore, during long-term use, when the pipe rubber at the connecting part falls off, the connecting part of the main pipe body and the branch pipe body is not easy to loosen and fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC pipes, in particular to a wear-resistant and high-temperature resistant PVC pipe. Background Art

[0002] PVC (polyvinyl chloride) pipe is a common plastic pipe material. Due to its excellent performance, durability, and cost-effectiveness, it is widely used in various fields such as construction, industry, agriculture, and homes. Rigid PVC pipe (UPVC pipe) is primarily used in drainage systems, water supply systems, and cable protection. It is highly rigid and does not easily bend.

[0003] When PVC pipes are used as cable casings, they need to have good structural strength. The existing Chinese patent with authorization announcement number CN221237403U discloses a high-temperature resistant and flame-retardant PVC pipe. The base pipe is coated with a flame-retardant layer and a heat-insulating layer in sequence on the outside of the base pipe to improve the high-temperature resistance and flame-retardant properties of the base pipe. At the same time, a protective layer is bonded to the outside of the heat-insulating layer to prevent foreign objects from directly colliding with the heat-insulating layer and affecting the structural integrity of the heat-insulating layer and the flame-retardant layer, which is beneficial to extending the service life of the PVC pipe. However, the installation of PVC pipes usually includes cutting, connecting and fixing. Glue (PVC pipe glue) can be used for connection, but after long-term use of PVC pipes, the pipe glue at the connection is prone to falling off, causing the connection to loosen. In addition, since PVC pipes are often used as cable casings in outdoor environments, they are extremely susceptible to corrosion. The traditional single-layer structure is prone to breakage after long-term use.

[0004] In summary, the current wear-resistant and high-temperature resistant PVC pipes still have the following defects during installation and use at the user end:

[0005] (1) After long-term use, the glue at the joint of the PVC pipe tends to fall off, causing the joint to become loose.

[0006] (2) Since PVC pipes are often used as cable sheaths in outdoor environments, they are extremely susceptible to corrosion. The traditional single-layer structure is prone to breakage after long-term use. Utility Model Content

[0007] In order to overcome the above-mentioned defects of the prior art, the inventors have conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0008] Specifically, the technical problem to be solved by the present invention is to provide a wear-resistant and high-temperature resistant PVC pipe to solve the current wear-resistant and high-temperature resistant PVC pipe. After long-term use, the pipe glue at the connection is prone to fall off, causing the connection to loosen. Moreover, since PVC pipes are often used as cable sheaths in outdoor environments, they are extremely susceptible to corrosion. The traditional single-layer structure is prone to breakage after long-term use.

[0009] In order to solve the above technical problems, the technical solution of the utility model is:

[0010] A wear-resistant and high-temperature resistant PVC pipe, comprising a main pipe body and a branch pipe body, wherein both ends of the main pipe body and the branch pipe body are respectively provided with a plug end and a butt end, and the outer ring diameter of the plug end is the same as the inner ring diameter of the butt end, and the plug end and the butt end are adapted to each other;

[0011] An annular groove is formed on the outside of the main body, and a threaded pipe is installed on the outside of the main body. The threaded pipe is movably connected to the outside of the main body through the annular groove, and the main body passes through the entire annular groove.

[0012] The outer side of the threaded pipe is threadedly connected with a threaded sleeve, the threaded sleeve is located at the connection between the main pipe body and the branch pipe body, and the branch pipe body passes through the entire threaded sleeve.

[0013] As an improved technical solution, a rotation groove is provided on the outside of the branch pipe body, and the rotation groove is located at one end of the branch pipe body close to the docking end. The threaded sleeve is movably connected to the outside of the branch pipe body through the rotation groove, and a sliding groove is provided on one end of the rotation groove close to the plug-in end.

[0014] As an improved technical solution, a clamping block is fixedly installed on the inner side of the threaded sleeve, and the threaded sleeve is movably connected to the slide groove through the clamping block. A sealing ring is provided on the top of the clamping block, and the inner ring of the sealing ring is slightly larger than the inner ring diameter of the threaded sleeve.

[0015] As an improved technical solution, outer sides of the main pipe and the branch pipe are both provided with outer wear-resistant layers, and the outer sides of the outer wear-resistant layers are provided with a sun protection layer.

[0016] As an improved technical solution, the inner sides of the main pipe body and the branch pipe body are both provided with a heat-resistant layer, and the side of the heat-resistant layer away from the outer wear-resistant layer is provided with an inner wear-resistant layer.

[0017] As an improved technical solution, the main pipe and the branch pipe are further provided with a reinforcement layer, which is located between the outer wear-resistant layer and the heat-resistant layer.

[0018] After adopting the above technical solution, the beneficial effects of the utility model are:

[0019] (1) When the wear-resistant and high-temperature resistant PVC pipe is used, the threaded pipe is rotated while the annular groove on the outside of the main body remains unchanged, so that the threaded pipe is threadedly connected to the threaded sleeve, thereby shielding the connection between the main body and the branch body, and the pipe glue at the connection between the main body and the branch body is used to complete the connection between the main body and the branch body, so that when the pipe glue at the connection falls off during long-term use, the connection between the main body and the branch body is not easily loosened or fallen off.

[0020] (2) A composite multi-layer structure made of multiple materials including an outer wear-resistant layer, a heat-resistant layer and a reinforcement layer is used. The inner wear-resistant layer ensures smooth passage of the cable while increasing the wear resistance of the inner wall of the main pipe and the branch pipe.

[0021] (3) The block on the threaded sleeve allows the butt end to move in the slide groove along the axial direction of the plug-in end, and when the threaded sleeve is threadedly connected to the threaded pipe, the gap at the connection between the main pipe body and the branch pipe body is filled by the sealing ring made of silicone rubber, so that the pipe glue at the connection between the main pipe body and the branch pipe body is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the wear-resistant and high-temperature resistant PVC pipe of the utility model;

[0024] Figure 2 This is a schematic diagram of the explosive decomposition structure of the wear-resistant and high-temperature resistant PVC pipe of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the wear-resistant and high-temperature resistant PVC pipe of the utility model;

[0026] Figure 4 This is a schematic diagram of the related structure of the threaded sleeve and sealing ring of the wear-resistant and high-temperature resistant PVC pipe of the utility model;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the wear-resistant and high-temperature resistant PVC pipe of the utility model;

[0028] Figure numerals: 1. main body; 2. branch body; 3. plug-in end; 4. docking end; 5. annular groove; 6. threaded pipe; 7. threaded sleeve; 8. rotating groove; 9. slide groove; 10. block; 11. sealing ring; 12. outer wear-resistant layer; 13. sun protection layer; 14. heat-resistant layer; 15. inner wear-resistant layer; 16. reinforcement layer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0032] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0033] like Figures 1 to 5As shown together, this embodiment provides a wear-resistant and high-temperature resistant PVC pipe, including a main body 1 and a branch body 2. Both ends of the main body 1 and the branch body 2 are respectively provided with a plug end 3 and a docking end 4, and the outer ring diameter of the plug end 3 is the same as the inner ring diameter of the docking end 4. The plug end 3 and the docking end 4 are adapted to each other. An annular groove 5 is provided on the outside of the main body 1. A threaded pipe 6 is also installed on the outside of the main body 1. The threaded pipe 6 is movably connected to the outside of the main body 1 through the annular groove 5. The main body 1 passes through the annular groove 5 as a whole. The outer side of the threaded pipe 6 is threadedly connected to a threaded sleeve 7. The threaded sleeve 7 is located between the main body 1 and the branch body. 2, the branch pipe body 2 passes through the entire threaded sleeve 7, the main body 1 can be plugged into the branch pipe body 2 in the branch pipe body 2 through the plug-in end 3, without changing the overall diameter of the main body 1 and the branch pipe body 2. By plugging, the connection between the main body 1 and the branch pipe body 2 is more stable through the pipe glue, and the threaded pipe 6 can be rotated on the outside of the main body 1 through the annular groove 5, but the position remains unchanged. The threaded pipe 6 can be threadedly connected with the threaded sleeve 7, thereby shielding the connection between the main body 1 and the branch pipe body 2, and cooperating with the pipe glue at the connection between the main body 1 and the branch pipe body 2 to complete the connection of the main body 1 and the branch pipe body 2.

[0034] A rotation groove 8 is provided on the outside of the branch body 2, and the rotation groove 8 is located at the end of the branch body 2 close to the docking end 4. The threaded sleeve 7 is movably connected to the outside of the branch body 2 through the rotation groove 8. A slide groove 9 is provided at the end of the rotation groove 8 close to the plug-in end 3. The threaded sleeve 7 can rotate in the rotation groove 8 but cannot move. The threaded sleeve 7 can move in the slide groove 9 but cannot rotate.

[0035] A clamping block 10 is fixedly installed on the inner side of the threaded sleeve 7, and the threaded sleeve 7 is movably connected to the slide groove 9 through the clamping block 10. A sealing ring 11 is provided on the top of the clamping block 10. The inner circle of the sealing ring 11 is slightly larger than the inner circle diameter of the threaded sleeve 7. The threaded sleeve 7 can move axially along the plug-in end 3 in the slide groove 9 through the clamping block 10. The sealing ring 11 can fill the gap at the connection between the main body 1 and the branch pipe body 2 when the threaded sleeve 7 is threadedly connected to the threaded pipe 6, so that the pipe glue at the connection between the main body 1 and the branch pipe body 2 is not easy to fall off.

[0036] The outside of the main body 1 and the branch body 2 are both provided with an outer wear-resistant layer 12, and the outside of the outer wear-resistant layer 12 is provided with a sunscreen layer 13. The outer wear-resistant layer 12 is made of a mixture of PVC and glass fiber to improve the surface wear resistance and impact resistance of the main body 1 and the branch body 2. The sunscreen layer 13 is an anti-ultraviolet coating for outdoor applications or applications exposed to sunlight to prevent ultraviolet rays from degrading PVC.

[0037] A heat-resistant layer 14 is provided on the inner side of the main pipe body 1 and the branch pipe body 2. An inner wear-resistant layer 15 is provided on the side of the heat-resistant layer 14 away from the outer wear-resistant layer 12. The heat-resistant layer 14 is made of modified PVC material to maintain the stability of the pipeline in a high-temperature fluid environment. The inner wear-resistant layer 15 is a ceramic coating layer that helps reduce the wear of the fluid on the inner walls of the main pipe body 1 and the branch pipe body 2.

[0038] A reinforcement layer 16 is also provided in the main body 1 and the branch body 2. The reinforcement layer 16 is located between the outer wear-resistant layer 12 and the heat-resistant layer 14. The reinforcement layer 16 is supported by galvanized steel wire braiding. While improving the pressure resistance of the pipeline, it can also ensure the integrity of the appearance when the pipeline is used for a long time.

[0039] When connecting the main body 1 and the branch body 2, the plug-in end 3 in the main body 1 is plugged into the branch body 2 in the branch body 2. Without changing the overall diameters of the main body 1 and the branch body 2, the connection between the main body 1 and the branch body 2 is made more stable by the pipe glue. The threaded tube 6 is rotated while the annular groove 5 on the outer side of the main body 1 remains unchanged, so that the threaded tube 6 is threadedly connected with the threaded sleeve 7, thereby shielding the connection between the main body 1 and the branch body 2. The pipe glue at the connection between the main body 1 and the branch body 2 is used to complete the connection between the main body 1 and the branch body 2. When the pipe glue at the connection falls off during long-term use, the connection between the main body 1 and the branch body 2 is not easily loosened or fallen off. In this process, the clamping block 10 on the threaded sleeve 7 is used to make The butt end 4 moves axially along the plug-in end 3 in the slide groove 9, and when the threaded sleeve 7 is threadedly connected to the threaded pipe 6, the gap at the connection between the main body 1 and the branch body 2 is filled by the sealing ring 11 made of silicone rubber, so that the pipe glue at the connection between the main body 1 and the branch body 2 is not easy to fall off. At the same time, a composite multi-layer structure made of multiple materials such as the outer wear-resistant layer 12, the heat-resistant layer 14 and the reinforcement layer 16 is adopted. The inner wear-resistant layer 15 increases the wear resistance of the inner walls of the main body 1 and the branch body 2 while ensuring smooth passage of the cable. The heat-resistant layer 14 made of modified PVC material ensures that the main body 1 and the branch body 2 can also ensure good stability at high temperatures. The anti-ultraviolet coating sunscreen layer 13 prevents ultraviolet rays from degrading PVC when used outdoors or exposed to sunlight.

[0040] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A wear-resistant and high-temperature resistant PVC pipe, comprising a main pipe body (1) and a branch pipe body (2), characterized in that: Both ends of the main pipe body (1) and the branch pipe body (2) are respectively provided with a plug end (3) and a docking end (4), and the outer diameter of the plug end (3) is the same as the inner diameter of the docking end (4), and the plug end (3) and the docking end (4) are adapted to each other; An annular groove (5) is provided on the outside of the main body (1), and a threaded tube (6) is also installed on the outside of the main body (1). The threaded tube (6) is movably connected to the outside of the main body (1) through the annular groove (5), and the main body (1) passes through the entire annular groove (5); The outer side of the threaded pipe (6) is threadedly connected to a threaded sleeve (7), the threaded sleeve (7) being located at the connection between the main pipe body (1) and the branch pipe body (2), and the branch pipe body (2) passing through the threaded sleeve (7) as a whole.

2. The wear-resistant and high-temperature resistant PVC pipe according to claim 1, characterized in that: A rotation groove (8) is provided on the outer side of the branch pipe body (2), and the rotation groove (8) is located at one end of the branch pipe body (2) close to the docking end (4). The threaded sleeve (7) is movably connected to the outer side of the branch pipe body (2) through the rotation groove (8). A sliding groove (9) is provided at one end of the rotation groove (8) close to the plug end (3).

3. The wear-resistant and high-temperature resistant PVC pipe according to claim 2, characterized in that: A clamping block (10) is fixedly mounted on the inner side of the threaded sleeve (7), and the threaded sleeve (7) is movably connected to the slide groove (9) through the clamping block (10). A sealing ring (11) is provided on the top of the clamping block (10), and the inner diameter of the sealing ring (11) is slightly larger than the inner diameter of the threaded sleeve (7).

4. The wear-resistant and high-temperature resistant PVC pipe according to claim 3, characterized in that: The outer sides of the main pipe body (1) and the branch pipe body (2) are both provided with an outer wear-resistant layer (12), and the outer side of the outer wear-resistant layer (12) is provided with a sun protection layer (13).

5. The wear-resistant and high-temperature resistant PVC pipe according to claim 4, characterized in that: The inner sides of the main pipe body (1) and the branch pipe body (2) are both provided with a heat-resistant layer (14), and an inner wear-resistant layer (15) is provided on the side of the heat-resistant layer (14) away from the outer wear-resistant layer (12).

6. The wear-resistant and high-temperature resistant PVC pipe according to claim 5, characterized in that: A reinforcement layer (16) is further provided in the main pipe body (1) and the branch pipe body (2), and the reinforcement layer (16) is located between the outer wear-resistant layer (12) and the heat-resistant layer (14).

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