Modified high-strength PVC pipe

Abstract

The utility model discloses a modified high strength PVC pipe belongs to PVC pipe technical field. This kind of modified high strength PVC pipe, including PVC pipe body, the inside one side screw thread connection of PVC pipe body has sealing cover, and the inside of sealing cover is inserted with inner tube, support subassembly is arranged between PVC pipe body and inner tube, and support subassembly includes arc bending plate, a plurality of right angle clamping block, semicircle plate and perforation, a plurality of right angle clamping block is fixed respectively installed in the inner wall of PVC pipe body, and the arc bending plate is connected between every two right angle clamping block slidingly, and the inside equidistance of arc bending plate places semicircle plate, the utility model discloses, through the cooperation of sealing cover and support subassembly, makes the filling facility of this PVC pipe inside improvement intensity and can realize convenient replacement.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe technology, specifically to modified high-strength PVC pipe. Background Technology

[0002] VC pipe is mainly composed of polyvinyl chloride (PVC), with other components added to enhance its heat resistance, toughness, and ductility. The top layer of this surface film is paint, the middle layer is mainly PVC, and the bottom layer is a backing adhesive. PVC pipe is divided into rigid PVC pipe, which is formed by hot-pressing PVC resin with stabilizers, lubricants, etc. It was one of the earliest plastic pipes to be developed and applied. A search revealed a high-strength PVC pipe with good pressure resistance in Chinese patent CN221374970U, comprising a PVC pipe and a pressure-resistant mechanism. The pressure-resistant mechanism includes an inner tube, an arc-shaped support plate, rock wool, an outer tube, and a hollow metal ring. The pressure-resistant mechanism is provided on the inner surface of the PVC pipe, and a connecting mechanism is provided on one end surface of the PVC pipe. This high-strength PVC pipe with excellent pressure resistance features an arc-shaped support plate that reduces pressure on the inner pipe, providing better protection. Rock wool is installed within the arc of the support plate to further ensure the safety of the inner pipe. The connection between the arc-shaped support plate and the inner pipe creates a cavity, providing further protection. The outer pipe is fitted over the inner pipe, ensuring that external pressure only damages the outer pipe. Finally, a hollow metal ring is fitted over the outer pipe to further protect it and reduce friction, thus extending its service life. This completes the pressure-resistant effect.

[0003] However, in actual use, since the pressure-resistant mechanism is fixed inside the PVC pipe, the internal filling material cannot be replaced. Once the PVC pipe is subjected to external pressure, the filling material inside the pressure-resistant mechanism will deform, and such deformed filling material will reduce the strength of the PVC pipe. Utility Model Content

[0004] To address the problem of difficulty in replacing the internal structure of existing PVC pipes, this invention provides a modified high-strength PVC pipe.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A modified high-strength PVC pipe includes a PVC pipe body, a sealing cap threaded to one side of the inner side of the PVC pipe body, and an inner pipe inserted inside the sealing cap; a support assembly is disposed between the PVC pipe body and the inner pipe, the support assembly includes an arc-shaped bending plate, several right-angle blocks, a semi-circular plate and a perforation, several right-angle blocks are respectively fixedly installed on the inner wall of the PVC pipe body, an arc-shaped bending plate is slidably connected between every two right-angle blocks, and semi-circular plates are placed equidistantly inside the arc-shaped bending plate.

[0007] Furthermore, a through hole is provided on one side of the semicircular plate, and a limit rod is inserted inside the through hole.

[0008] The beneficial effect of adopting the above-mentioned further solution is that it can limit the displacement of the semicircular plate within the curved bend, prevent the semicircular plate from falling off or shifting when the pipeline vibrates or is under pressure, and ensure the structural integrity of the support assembly. The cooperation between the limiting rod and the perforation keeps the semicircular plates equidistantly distributed, thereby ensuring that the curved bend provides uniform support force to the inner and outer pipes.

[0009] Furthermore, the sealing cap includes a cap body, and an inner ring body is installed on one side of the inner wall of the PVC pipe body. The inner wall of the inner ring body is provided with an internal thread that engages with the cap body.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the inner ring of the cap body and the inner wall of the PVC pipe body are engaged by the internal thread to form a tight mechanical seal structure, which can effectively prevent the inner tube from detaching from the PVC pipe body.

[0011] Furthermore, traction blocks are installed on both sides of the outer wall of the cover, and holes are opened on one side of the two traction blocks.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the traction block provides a force application point, making it easy for operators to tighten or loosen the sealing cover by tools or by hand. Especially when space is limited or a large torque is required, the holes of the traction block can be used with tools such as wrenches to improve the convenience of operation.

[0013] Furthermore, a filling ring is installed at one end of the PVC pipe body, and docking grooves that match the traction block are respectively opened on both sides of the filling ring.

[0014] The beneficial effect of adopting the above-mentioned further solution is that, by setting the docking groove, space can be provided for the traction block when the two sets of PVC pipes are docked front and back.

[0015] Furthermore, the PVC pipe body has an annular cavity at one end near the sealing cap, and the inner wall of the annular cavity is flush with the outer wall of the filling ring.

[0016] The beneficial effect of adopting the above-mentioned further solution is that by setting up the annular cavity, space is provided for the docking placement of the filling ring, which is conducive to the precise docking and installation of the two sets of PVC pipes.

[0017] Furthermore, the outer wall of the arc-shaped bent plate is in tangential contact with the outer wall of the inner tube.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the supporting force of the support component acts perpendicularly to the inner tube, avoiding radial force that could cause the inner tube to shift or deform. The tangential contact design can evenly distribute the supporting force, prevent local stress concentration, and improve the connection strength between the inner tube and the PVC pipe body.

[0019] Furthermore, the support assembly is located between the sealing cap and the filling ring.

[0020] The advantage of adopting the above-mentioned further solution is that the sealing cap and the filling ring can prevent the support component from detaching from the inside of the PVC pipe body.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This modified high-strength PVC pipe, through the combined use of a sealing cap and a support assembly, allows for convenient replacement of the internal strength-enhancing filling. The support assembly is fixed to the inner wall of the PVC pipe body via right-angle clips, and an arc-shaped bend can slide between these clips, forming an elastic support structure with the semi-circular plate. This structure evenly distributes pressure between the inner and outer pipes, preventing radial deformation of the PVC pipe body due to external forces or internal fluid pressure, thus improving the overall compressive strength of the pipe. Simultaneously, the sliding arc-shaped bend facilitates easy disassembly and assembly, making it convenient to replace damaged semi-circular plates. Furthermore, the sealing cap is threaded to the PVC pipe body, sealing the connection between the inner pipe and the PVC pipe body. The arc-shaped bend of the support assembly is tangentially in contact with the outer wall of the inner pipe, ensuring even transmission of support force and enhancing the structural stability of the pipe. Attached Figure Description

[0023] Figure 1 A front perspective view of the modified high-strength PVC pipe provided by this utility model;

[0024] Figure 2 A rear perspective view of the modified high-strength PVC pipe provided for this utility model;

[0025] Figure 3 A side sectional view of the modified high-strength PVC pipe provided by this utility model;

[0026] Figure 4 A schematic diagram of the sealing cap structure of the modified high-strength PVC pipe provided by this utility model;

[0027] Figure 5 A schematic diagram of the support assembly for the modified high-strength PVC pipe provided by this utility model.

[0028] In the diagram: 1. PVC pipe body; 2. Inner pipe; 3. Filler ring; 4. Connecting groove; 5. Annular cavity; 6. Sealing cap; 601. Cap body; 602. Traction block; 7. Support assembly; 701. Arc-shaped bend plate; 702. Right-angle locking block; 703. Semicircular plate; 704. Perforation; 705. Limiting rod; 8. Inner ring body. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 This utility model provides a technical solution: a modified high-strength PVC pipe, including a PVC pipe body 1, a sealing cap 6 threadedly connected to one side of the inner side of the PVC pipe body 1, and an inner pipe 2 inserted inside the sealing cap 6; a support assembly 7, which is disposed between the PVC pipe body 1 and the inner pipe 2, the support assembly 7 including an arc-shaped bending plate 701, several right-angle clamps 702, a semi-circular plate 703, and a perforation 704, the several right-angle clamps 702 being fixedly installed on the inner wall of the PVC pipe body 1, the arc-shaped bending plate 701 being slidably connected between every two right-angle clamps 702, the semi-circular plates 703 being equidistantly placed inside the arc-shaped bending plate 701, and the support assembly 7 being fixed by the right-angle clamps 702. The inner wall of the PVC pipe body 1 has an arc-shaped bend 701 that can slide between right-angle clamps 702, forming an elastic support structure with the semi-circular plate 703. This structure can evenly distribute the pressure between the inner and outer pipes, preventing the PVC pipe body 1 from undergoing radial deformation due to external forces or internal fluid pressure, thus improving the overall compressive strength of the pipe. At the same time, the sliding arc-shaped bend 701 facilitates disassembly and assembly, which is beneficial for subsequent replacement of damaged semi-circular plates 703. Furthermore, the sealing cap 6 is threadedly connected to the PVC pipe body 1, which can seal the connection between the inner pipe 2 and the PVC pipe body 1. Meanwhile, the arc-shaped bend 701 of the support component 7 is in tangential contact with the outer wall of the inner pipe 2, ensuring that the support force is evenly transmitted and enhancing the structural stability of the pipe.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] As one embodiment of this utility model, a through hole 704 is further provided on one side of the semicircular plate 703, and a limiting rod 705 is inserted inside the through hole 704 to limit the displacement of the semicircular plate 703 within the arc-shaped bend plate 701, preventing the semicircular plate 703 from falling off or becoming misaligned when the pipeline vibrates or is under pressure, and ensuring the structural integrity of the support assembly 7. The cooperation between the limiting rod 705 and the through hole 704 keeps the semicircular plates 703 equidistantly distributed, thereby ensuring that the arc-shaped bend plate 701 provides uniform support force to the inner and outer pipes.

[0033] As an embodiment of this utility model, the sealing cap 6 further includes a cap body 601, and an inner ring body 8 is installed on one side of the inner wall of the PVC pipe body 1. The inner wall of the inner ring body 8 is provided with an internal thread that engages with the cap body 601. The cap body 601 and the inner ring body 8 of the inner wall of the PVC pipe body 1 are engaged by the internal thread to form a tight mechanical seal structure, which can effectively prevent the inner tube 2 from detaching from the PVC pipe body 1.

[0034] As an embodiment of this utility model, further, traction blocks 602 are respectively installed on both sides of the outer wall of the cover 601. Holes are opened on one side of the two traction blocks 602. The traction blocks 602 provide force application points, making it convenient for operators to tighten or disassemble the sealing cover 6 by tools or manual operation. Especially when space is limited or a large torque is required, the holes of the traction blocks 602 can be used with tools such as wrenches to improve the convenience of operation.

[0035] As an embodiment of this utility model, a filling ring 3 is installed at one end of the PVC pipe body 1, and docking grooves 4 that match the traction block 602 are respectively opened on both sides of the filling ring 3. By setting the docking grooves 4, the traction block 602 can be placed in space when the two sets of PVC pipes are docked.

[0036] As an embodiment of this utility model, the PVC pipe body 1 is further provided with an annular cavity 5 at one end near the sealing cap 6. The inner wall of the annular cavity 5 is flush with the outer wall of the filling ring 3. The annular cavity 5 provides space for the docking and placement of the filling ring 3, which is conducive to the precise docking and installation of the two sets of PVC pipes.

[0037] In one embodiment of this utility model, the outer wall of the arc-shaped bending plate 701 is in tangential contact with the outer wall of the inner tube 2, so that the supporting force of the supporting component 7 acts perpendicularly on the inner tube 2, avoiding the generation of radial component force that could cause the inner tube 2 to shift or deform. The tangential contact design can evenly distribute the supporting force, prevent local stress concentration, and improve the connection strength between the inner tube 2 and the PVC pipe body 1.

[0038] As an embodiment of this utility model, the support component 7 is further located between the sealing cap 6 and the filling ring 3. Through the sealing effect of the sealing cap 6 and the filling ring 3, the support component 7 can be prevented from detaching from the interior of the PVC pipe body 1.

[0039] Specifically, the working principle of this modified high-strength PVC pipe is as follows: During use, the inner pipe 2 is first inserted into the PVC pipe body 1 through the sealing cap 6. A sealing connection is achieved by the internal thread of the cap 601 engaging with the inner ring 8 of the inner wall of the PVC pipe body 1. The operator can tighten the sealing cap 6 using tools through the holes in the traction block 602 on the outer wall of the cap 601, causing the outer wall of the arc-shaped bend 701 of the support assembly 7 to tangentially contact the outer wall of the inner pipe 2. In the support assembly 7, the right-angle clamp 702 is fixed to the inner wall of the PVC pipe body 1, and the arc-shaped bend 701 slides between the right-angle clamps 702. The semi-circular plates 703 inside are equidistantly distributed through the perforations 704 and the limiting rods 705, forming an elastic support structure. When the pipe is subjected to external force or internal fluid pressure, the arc-shaped bend 701 and the semi-circular plates 703 can evenly distribute the pressure, preventing radial deformation of the PVC pipe body 1. During pipe connection, the filling ring 3 is embedded in the annular cavity 5 of the PVC pipe body 1, and its docking groove 4 matches the traction block 602, providing space for the traction block 602 of adjacent pipes to achieve precise connection. At the same time, the annular cavity 5 buffers installation stress. The support component 7 is located between the sealing cover 6 and the filling ring 3. The sealing effect of the two prevents the support component from falling off, while the sliding design of the arc-shaped bend plate 701 facilitates the subsequent disassembly and replacement of the semi-circular plate 703. The entire structure achieves high-strength pressure resistance, leakage prevention, and convenient maintenance through mechanical sealing, elastic support, and precise connection.

Claims

1. A modified high-strength PVC pipe, characterized in that, include: A PVC pipe body (1) has a sealing cap (6) threaded on one side of its interior, and an inner tube (2) is inserted inside the sealing cap (6). Support component (7) is disposed between the PVC pipe body (1) and the inner pipe (2). The support component (7) includes an arc-shaped bend plate (701), several right-angle blocks (702), a semi-circular plate (703) and a perforation (704). Several right-angle blocks (702) are respectively fixedly installed on the inner wall of the PVC pipe body (1). The arc-shaped bend plate (701) is slidably connected between every two right-angle blocks (702). The semi-circular plates (703) are placed equidistantly inside the arc-shaped bend plate (701).

2. The modified high-strength PVC pipe according to claim 1, characterized in that, A through hole (704) is provided on one side of the semicircular plate (703), and a limit rod (705) is inserted inside the through hole (704).

3. The modified high-strength PVC pipe according to claim 1, characterized in that, The sealing cap (6) includes a cap body (601), and an inner ring body (8) is installed on one side of the inner wall of the PVC pipe body (1). The inner wall of the inner ring body (8) is provided with an internal thread that meshes with the cap body (601).

4. The modified high-strength PVC pipe according to claim 3, characterized in that, Traction blocks (602) are installed on both sides of the outer wall of the cover (601), and holes are opened on one side of the two traction blocks (602).

5. The modified high-strength PVC pipe according to claim 4, characterized in that, A filling ring (3) is installed at one end of the PVC pipe body (1), and a docking groove (4) that matches the traction block (602) is opened on both sides of the filling ring (3).

6. The modified high-strength PVC pipe according to claim 5, characterized in that, The PVC pipe body (1) has an annular cavity (5) at one end near the sealing cap (6), and the inner wall of the annular cavity (5) is flush with the outer wall of the filling ring (3).

7. The modified high-strength PVC pipe according to claim 1, characterized in that, The outer wall of the arc-shaped bending plate (701) is in tangential contact with the outer wall of the inner tube (2).

8. The modified high-strength PVC pipe according to claim 5, characterized in that, The support component (7) is located between the sealing cap (6) and the filling ring (3).

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