Compression-resistant PVC composite pipe

Abstract

This utility model relates to the field of composite pipe technology, specifically to a pressure-resistant PVC composite pipe, comprising a pipe body, an inner pipe and an outer pipe, the outer pipe being fixedly sleeved on the outer wall of the inner pipe, buffer grooves being spaced apart inside the outer pipe, and pressure-resistant components being installed inside the buffer grooves. Multiple sets of blocking and drainage mechanisms are installed at both ends inside the inner pipe, each including an intercepting flow component and a top-pressure discharge component. The intercepting flow component is used to clear blockages in the water source and intercept impurities, while the top-pressure discharge component is used to discharge the water source. This utility model has a simple structure and is easy to operate. It can block impurities from entering the inner side of the second flow groove during drainage, and can also scrape impurities from the intercepting mesh after drainage for easy subsequent cleaning, further improving the pressure resistance of the pipe body.

Description

Technical Field

[0001] This utility model relates to the field of composite pipe technology, specifically to a pressure-resistant PVC composite pipe. Background Technology

[0002] PVC composite pipe is a type of PVC plastic flexible hose. Its inner reinforcing layer is a steel wire and polyester fiber composite layer. PVC steel wire and polyester composite pipe, also known as PVC steel wire and polyester fiber composite reinforced hose, is a type of PVC hose that combines steel wire reinforcement and polyester fiber reinforcement through a specific process to achieve complementary advantages. This product is suitable for harsh conditions such as mountainous areas and military applications. Due to its superior quality and performance, complex manufacturing process, and high cost, its application and promotion are limited, resulting in a low market share. Currently, common PVC pipes have poor pressure resistance, are prone to aging and wear, and are easily ruptured when blocked. They also have poor sealing performance and cannot meet people's needs, making them unsuitable for use.

[0003] To address the aforementioned technical problems, Chinese Patent No. CN209725494U discloses a pressure-resistant and environmentally friendly PVC composite pipe, comprising a stainless steel pipe body, a PVC sleeve disposed on the surface of the stainless steel pipe body, a connecting pipe fixedly connected to the right side of the stainless steel pipe body, a sealing ring placement sleeve fixedly connected to the right side of the connecting pipe, and an internally threaded sleeve fixedly connected to the right side of the sealing ring placement sleeve.

[0004] While the aforementioned existing technical solution is less likely to rupture the pipe body when blockage occurs, and discharges the water source through the drainage channel, reducing the impact of water pressure on the pipe body and increasing the pressure resistance, when the water source is discharged through the drainage channel, the water pressure pushes the first sealing ball into the PVC sleeve. At this time, the port of the drainage channel is unobstructed, and the water source will also carry impurities in. Once these impurities block the inside of the drainage channel, it will be difficult for subsequent water sources to be discharged. Moreover, these impurities stuck inside the drainage channel are more difficult to clean than the impurities inside the pipe, affecting the cleaning efficiency of the workers. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a pressure-resistant PVC composite pipe. This device aims to solve the technical problem that, in existing composite pipes, when water is discharged through a drainage channel without any obstruction at the channel's end, impurities can enter the water. Once these impurities clog the inside of the drainage channel, subsequent water discharge becomes difficult. Furthermore, these impurities stuck inside the drainage channel are more difficult to clean than those inside the pipe itself, thus affecting the cleaning efficiency of workers.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a pressure-resistant PVC composite pipe, including a pipe body, which includes an inner pipe and an outer pipe. The outer pipe is fixedly sleeved on the outer wall of the inner pipe. Buffer grooves are spaced apart inside the outer pipe, and pressure-resistant components are installed inside the buffer grooves. Multiple sets of blockage and drainage mechanisms are installed at both ends inside the inner pipe. The blockage and drainage mechanism includes an interception and flow-through component and a top-pressure water discharge component. The interception and flow-through component is used to unclog the blocked water source and intercept impurities from entering, and the top-pressure water discharge component is used to discharge the water source.

[0009] When using a pressure-resistant PVC composite pipe according to this solution, during normal water flow inside the inner pipe, most of the water flows smoothly through the inner side of the inner pipe. At this time, the first sealing plate, under the action of the first torsion spring, tightly fits against one side port of the first flow channel, and the first sealing gasket enhances the sealing effect, preventing the normally flowing water from entering the first deflection channel. When the inner pipe is blocked and the water pressure is high, the first sealing plate is pushed to deflect the first torsion spring, and at the same time, it drives the blocking plate to rotate and unfold, allowing the interception net to be displayed. This allows the water to flow into the inner side of the second flow channel while also intercepting impurities mixed in the water flow, preventing impurities from entering the inner side of the second flow channel. The water flow can continue to move smoothly through the second flow channel. The structure is simple and easy to operate. It can block impurities from entering the inner side of the second flow channel during drainage, and can also scrape the impurities from the interception net after drainage for easy subsequent cleaning, further improving the pressure resistance of the pipe body.

[0010] Preferably, the intercepting flow component includes a first flow groove formed on the inner wall of the inner pipe, and a first deflection groove is formed on one side of the first flow groove inside the inner pipe, with the inner side of the first deflection groove communicating with the inner side of the first flow groove.

[0011] Furthermore, a first deflection rod is rotatably connected to one end of the inner wall of the first deflection groove, a first sealing plate is fixedly sleeved on the outer wall of the first deflection rod, a first groove is formed inside the inner pipe on one side of the first deflection groove, a first torsion spring is installed between the first deflection rod and the inner wall of the first groove, and a first sealing gasket is embedded in the side of the first sealing plate near the first flow groove.

[0012] Furthermore, a guide arc surface is provided inside the inner pipe on one side of the first flow groove, and a blocking groove is provided inside the inner pipe on one side of the first flow groove and the first deflection groove. A blocking plate is slidably connected inside the blocking groove. One end of the first sealing plate is fixedly connected to one end of the blocking plate. An intercepting net is embedded in one end of the blocking plate. A second flow groove is provided inside the inner pipe on one side of the blocking groove.

[0013] Furthermore, the top-pressure water outlet assembly includes a second deflection groove on both sides of the other end of the inner wall of the second flow channel. A second deflection rod is rotatably connected to one end of the inner side of the second deflection groove. A second sealing plate is fixedly sleeved on one end of the outer wall of the second deflection rod. A second groove is formed inside the inner pipe on one side of the second deflection groove. A second torsion spring is installed between the other end of the second deflection rod and the inner wall of the second deflection groove. When the opposite ends of the two sets of second sealing plates are in the initial position, they are in contact with each other. A blocking groove is formed inside the inner pipe at the other end of the second flow channel. A blocking seat is slidably connected inside the blocking groove. A second sealing gasket is installed at the bottom and top of the outer wall of the blocking seat. The second sealing gasket is in contact with the inner wall of the blocking groove. Limiting grooves are formed at both ends of the inner pipe on one side of the blocking groove. Limiting blocks are installed at both ends of the blocking seat on one side. A first spring is installed between both ends of the limiting block and the inner wall of the limiting groove.

[0014] Furthermore, the anti-compression component includes a first support block installed at the center of the inner wall of the buffer groove, a support plate overlapping one side of the first support block, the support plate being made of glass fiber reinforced plastic, and silicone pads alternately overlapping between the outer wall of the support plate and the inner wall of the buffer groove.

[0015] Furthermore, a second support block is installed on one side of the silicone pad. The side cross-section of the second support block is V-shaped. The end of each set of second support blocks away from the silicone pad contacts the inner wall of the support plate and the buffer groove, respectively. The gaps in the inner wall of the buffer groove are filled with polyurethane.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the blocked water source is cleared by the interception and flow component and the impurities are blocked from entering. The top pressure water discharge component discharges the water source. The structure is simple and easy to operate. It can block impurities from entering the inner side of the second flow channel during drainage. It can also scrape the impurities from the interception net after drainage for easy subsequent cleaning and further improve the pressure resistance of the main body of the pipe.

[0019] 2. In this utility model, the first support block is located in the center of the inner wall of the buffer groove, providing basic support for the support plate. The support plate made of glass fiber reinforced plastic directly bears part of the pressure from the external pipe due to its high strength characteristics. The silicone pads are alternately arranged between the outer wall of the support plate and the inner wall of the buffer groove, playing a buffering and shock-absorbing role, reducing the impact of external pressure on the support plate, and further enhancing the stability of the overall pipe structure. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial three-dimensional structural diagram of the outer and inner pipes of this utility model;

[0022] Figure 3 This is a partial cross-sectional view of the main body of the pipeline of this utility model;

[0023] Figure 4 This is a partial cross-sectional view of the flow interception component of this utility model;

[0024] Figure 5 This is a partial cross-sectional view of the top-pressure water outlet component of this utility model;

[0025] Figure 6 This is a partial cross-sectional view of the push-press component of this utility model.

[0026] In the diagram: 1. Pipe body; 2. Inner pipe; 3. Outer pipe; 4. First sealing plate; 5. First torsion spring; 6. First sealing gasket; 7. Guide arc surface; 8. Barrier plate; 9. Interception net; 10. Second sealing plate; 11. Second deflection rod; 12. Second torsion spring; 13. Blocking seat; 14. Second sealing gasket; 15. Limiting block; 16. First spring; 17. First support block; 18. Support plate; 19. Silicone pad; 20. Second support block. Detailed Implementation

[0027] This specific embodiment is a pressure-resistant PVC composite pipe, the structural diagram of which is shown below. Figure 1-6 As shown, a pressure-resistant PVC composite pipe includes a pipe body 1, which includes an inner pipe 2 and an outer pipe 3. The outer pipe 3 is fixedly sleeved on the outer wall of the inner pipe 2. Buffer grooves are spaced apart inside the outer pipe 3, and pressure-resistant components are installed inside the buffer grooves. Multiple sets of blocking and drainage mechanisms are installed at both ends inside the inner pipe 2. The blocking and drainage mechanisms include an intercepting flow component and a top-pressure water discharge component. The intercepting flow component is used to clear the blocked water source and intercept impurities from entering, while the top-pressure water discharge component is used to discharge the water source. When in use, the device can clear the blocked water source and intercept impurities from entering through the intercepting flow component, and discharge the water source through the top-pressure water discharge component. It has a simple structure and is easy to operate. It can block impurities from entering the inner side of the second flow groove during drainage, and can also scrape impurities from the intercepting net 9 after drainage for easy subsequent cleaning, and further improve the pressure resistance of the pipe body 1.

[0028] In this embodiment, the flow interception component includes a first flow groove formed on the inner wall of the inner pipe 2. A first deflection groove is formed on one side of the first flow groove inside the inner pipe 2, and the inner side of the first deflection groove communicates with the inner side of the first flow groove. A first deflection rod is rotatably connected to one end of the inner wall of the first deflection groove. A first sealing plate 4 is fixedly sleeved on the outer wall of the first deflection rod. A first groove is formed on one side of the first deflection groove inside the inner pipe 2. A first torsion spring 5 is installed between the first deflection rod and the inner wall of the first groove. A first sealing gasket 6 is embedded on the side of the first sealing plate 4 near the first flow groove. A guide arc surface 7 is formed on one side of the first flow groove inside the inner pipe 2. A blocking groove is formed on one side of the first flow groove and the first deflection groove inside the inner pipe 2. A blocking plate 8 is slidably connected to the inner side of the blocking groove. One end of a sealing plate 4 is fixedly connected to one end of a barrier plate 8. An intercepting net 9 is embedded in one end of the barrier plate 8. When the water flows normally inside the inner pipe 2, most of the water flows smoothly through the inside of the inner pipe 2. At this time, the first sealing plate 4, under the action of the first torsion spring 5, tightly fits against one side port of the first flow channel. The first sealing gasket 6 enhances the sealing effect and prevents the normally flowing water from entering the first deflection channel. When the water pressure is high due to blockage in the inner pipe 2, the first sealing plate 4 is pushed to deflect the first torsion spring 5, and at the same time, it drives the barrier plate 8 to rotate and unfold, allowing the intercepting net 9 to be displayed. This allows the water to flow into the inside of the second flow channel while also intercepting impurities mixed in the water flow, preventing impurities from entering the inside of the second flow channel. The water can then continue to flow smoothly through the second flow channel.

[0029] Secondly, in this embodiment, a second flow channel is provided inside the inner pipe 2 on one side of the barrier channel. After the water pressure decreases due to water discharge, the elastic force of the first torsion spring 5 drives the first sealing plate 4 to reset, so that the first sealing gasket 6 is tightly attached to the port of the first flow channel again. At the same time as closing, the barrier plate 8 moves back to the inside of the barrier channel. At the same time as moving back, the top surface of the first sealing gasket 6, together with the tip of the guide arc surface 7, lifts up the impurities placed at the interception net 9 and scrapes them to the inside of the first flow channel. The first flow channel is connected to the inside of the inner pipe 2. In this way, the staff can directly clean the inner wall of the inner pipe 2 during subsequent cleaning.

[0030] Furthermore, in this embodiment, the top-pressure water outlet assembly includes a second deflection groove on both sides of the other end of the inner wall of the second flow channel. A second deflection rod 11 is rotatably connected to one end of the inner side of the second deflection groove. A second sealing plate 10 is fixedly sleeved on one end of the outer wall of the second deflection rod 11. A second groove is formed inside the inner pipe 2 on one side of the second deflection groove. A second torsion spring 12 is installed between the other end of the second deflection rod 11 and the inner wall of the second deflection groove. When the opposite ends of the two sets of second sealing plates 10 are in the initial position, they are in contact with each other. A blocking groove is formed inside the inner pipe 2 at the other end of the second flow channel. A blocking seat 13 is slidably connected inside the blocking groove. A second sealing gasket 14 is installed at the bottom and top of the outer wall of the blocking seat 13. The second sealing gasket 14 is in contact with the inner wall of the blocking groove. The two ends inside the inner pipe 2 located on one side of the blocking groove are... Each has a limiting groove. Limiting blocks 15 are installed at both ends of one side of the blocking seat 13. A first spring 16 is installed between the two ends of one side of the limiting block 15 and the inner wall of the limiting groove. When the water flows through the inner side of the second flow groove, the water impacts the two sets of opposing second sealing plates 10, overcoming the elastic force of the second torsion spring 12 and causing it to rotate around the second deflection rod 11 to open, allowing the water to continue to flow. The water pressure generates a thrust on the blocking seat 13, overcoming the elastic force of the first spring 16 and pushing the blocking seat 13 to slide upward in the blocking groove. The water flows from the gap between the blocking seat 13 and the blocking groove into the unblocked part on the other side of the inner wall of the inner pipe 2, thereby discharging the water accumulated in the inner pipe 2 and reducing the pressure inside the pipe. When the pressure returns to normal, the first spring 16 and the second torsion spring 12 respectively restore the blocking seat 13 and the second sealing plate 10 to their initial state.

[0031] Furthermore, in this embodiment, the pressure-resistant component includes a first support block 17 installed at the center of the inner wall of the buffer groove. A support plate 18, made of glass fiber reinforced plastic, overlaps one side of the first support block 17. Silicone pads 19 are alternately overlapped between the outer wall of the support plate 18 and the inner wall of the buffer groove. A second support block 20 is installed on one side of the silicone pad 19. The side cross-section of the second support block 20 is V-shaped. The end of each set of second support blocks 20 away from the silicone pad 19 contacts the support plate 18 and the inner wall of the buffer groove, respectively. The gaps in the inner wall of the buffer groove are filled with polyurethane. When the outer pipe 3 is subjected to a certain external pressure, the pressure-resistant component begins to function. The first support block 17 is located at the center of the inner wall of the buffer groove, providing support for the support plate 18. The glass fiber reinforced plastic support plate 18, due to its high strength, directly bears part of the pressure from the external pipe 3. The silicone pads 19 are alternately arranged between the outer wall of the support plate 18 and the inner wall of the buffer groove, playing a role in buffering and shock absorption, reducing the impact of external pressure on the support plate 18, and further enhancing the stability of the overall pipe structure. The second support block 20 is tightly connected to the silicone pads 19. Its V-shaped structure can better distribute the pressure. It contacts the support plate 18 and the inner wall of the buffer groove respectively, providing additional support and ensuring the stability of the overall structure. The polyurethane material filling the gaps in the inner wall of the buffer groove can help the pressure-resistant components maintain the tightness of the overall structure under normal pressure and provide a certain buffering and support capacity.

[0032] When using a pressure-resistant PVC composite pipe according to this solution, under normal water flow inside the inner pipe 2, most of the water flows smoothly through the inside of the inner pipe 2. At this time, the first sealing plate 4, under the action of the first torsion spring 5, tightly fits against one side port of the first flow channel, and the first sealing gasket 6 enhances the sealing effect, preventing the normally flowing water from entering the first deflection channel. When the inner pipe 2 is blocked and the water pressure is high, the first sealing plate 4 is pushed to drive the first torsion spring 5 to deflect, and at the same time, it drives the barrier plate 8 to rotate and unfold, allowing the interception net 9 to be deployed. This allows the water to flow into the inner side of the second flow channel while also intercepting impurities mixed in the water flow, preventing impurities from entering the inner side of the second flow channel. The water can continue to flow smoothly through the second flow channel. After the water pressure decreases due to the discharge of the water source, the elastic force of the first torsion spring 5 drives the first sealing plate 4 to reset, causing the first sealing gasket 6 to re-adhere tightly to the port of the first flow channel. At the same time as closing, the barrier plate 8 moves back to the inside of the barrier channel. During the retraction, the top surface of the first sealing gasket 6, in conjunction with the tip of the guide arc surface 7, lifts up the impurities placed at the interception net 9 and scrapes them to the inside of the first flow channel. The first flow channel is connected to the inside of the inner pipe 2, so that the staff can directly clean the inner wall of the inner pipe 2 during subsequent cleaning. When the water flows through the inside of the second flow channel, the water flow impacts the two sets of opposing second sealing plates 10, overcoming the elastic force of the second torsion spring 12. The second deflector rod 11 is rotated to open, allowing water to continue flowing. The water pressure exerts a thrust on the blockage seat 13, overcoming the elastic force of the first spring 16, and pushing the blockage seat 13 upward within the blockage groove. Water flows from the gap between the blockage seat 13 and the blockage groove into the unblocked area on the other side of the inner wall of the inner pipe 2, thereby discharging the water accumulated in the inner pipe 2 and reducing the pressure inside the pipe. When the pressure returns to normal, the first spring 16 and the second torsion spring 12 respectively restore the blockage seat 13 and the second sealing plate 10 to their initial states. When the outer pipe 3 is subjected to a certain external pressure, the pressure-resistant component begins to function. The first support block 17 is located in the center of the inner wall of the buffer groove, providing basic support for the support plate 18. The reinforced plastic support plate 18, due to its high strength, directly bears part of the pressure from the external pipe 3. The silicone pads 19 are alternately arranged between the outer wall of the support plate 18 and the inner wall of the buffer groove, playing a role in buffering and shock absorption, reducing the impact of external pressure on the support plate 18, and further enhancing the stability of the overall pipe structure. The second support block 20 is tightly connected to the silicone pads 19, and its V-shaped structure can better distribute the pressure. It contacts the support plate 18 and the inner wall of the buffer groove respectively, providing additional support and ensuring the stability of the overall structure. The polyurethane material filling the gaps in the inner wall of the buffer groove can help the pressure-resistant components maintain the tightness of the overall structure under normal pressure and provide a certain buffering and support capacity.

[0033] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A pressure-resistant PVC composite pipe, comprising a pipe body (1), characterized in that: The main body of the pipe (1) includes an inner pipe (2) and an outer pipe (3). The outer pipe (3) is fixedly sleeved on the outer wall of the inner pipe (2). The outer pipe (3) has buffer grooves spaced apart inside. The buffer grooves are equipped with anti-pressure components. Multiple sets of blocking and drainage mechanisms are installed at both ends inside the inner pipe (2). The blocking and drainage mechanism includes an interception flow component and a top pressure water discharge component. The interception flow component is used to clear the blocked water source and intercept impurities from entering. The top pressure water discharge component is used to discharge the water source.

2. The pressure-resistant PVC composite pipe according to claim 1, characterized in that: The intercepting flow component includes a first flow groove opened on the inner wall of the inner pipe (2), and a first deflection groove is opened on one side of the first flow groove inside the inner pipe (2), and the inner side of the first deflection groove is connected to the inner side of the first flow groove.

3. The pressure-resistant PVC composite pipe according to claim 2, characterized in that: One end of the inner wall of the first deflection groove is rotatably connected to a first deflection rod. The outer wall of the first deflection rod is fixedly fitted with a first sealing plate (4). The inner pipe (2) is provided with a first groove on one side of the first deflection groove. A first torsion spring (5) is installed between the first deflection rod and the inner wall of the first groove. A first sealing gasket (6) is embedded in the side of the first sealing plate (4) near the first flow groove.

4. The pressure-resistant PVC composite pipe according to claim 3, characterized in that: The inner pipe (2) has a guide arc surface (7) on one side of the first flow groove. The inner pipe (2) has a blocking groove on one side of the first flow groove and the first deflection groove. A blocking plate (8) is slidably connected to the inside of the blocking groove. One end of the first sealing plate (4) is fixedly connected to one end of the blocking plate (8). An intercepting net (9) is embedded in one end of the blocking plate (8). The inner pipe (2) has a second flow groove on one side of the blocking groove.

5. The pressure-resistant PVC composite pipe according to claim 4, characterized in that: The top-pressure water outlet assembly includes a second deflection groove on both sides of the other end of the inner wall of the second flow channel. A second deflection rod (11) is rotatably connected to one end of the inner side of the second deflection groove. A second sealing plate (10) is fixedly sleeved on one end of the outer wall of the second deflection rod (11). A second groove is opened on one side of the second deflection groove inside the inner pipe (2). A second torsion spring (12) is installed between the other end of the second deflection rod (11) and the inner wall of the second deflection groove. When the opposite ends of the two sets of second sealing plates (10) are in the initial position, they are in contact with each other. A blocking groove is provided at the other end of the second flow groove inside the inner pipe (2). A blocking seat (13) is slidably connected to the inner side of the blocking groove. A second sealing gasket (14) is installed at the bottom and top of the outer wall of the blocking seat (13). The second sealing gasket (14) fits against the inner wall of the blocking groove. Limiting grooves are provided at both ends of the inner pipe (2) on one side of the blocking groove. Limiting blocks (15) are installed at both ends of one side of the blocking seat (13). A first spring (16) is installed between the two ends of one side of the limiting block (15) and the inner wall of the limiting groove.

6. The pressure-resistant PVC composite pipe according to claim 5, characterized in that: The anti-compression component includes a first support block (17) installed in the center of the inner wall of the buffer groove. A support plate (18) overlaps on one side of the first support block (17). The support plate (18) is made of glass fiber reinforced plastic. Silicone pads (19) are alternately overlapped between the outer wall of the support plate (18) and the inner wall of the buffer groove.

7. The pressure-resistant PVC composite pipe according to claim 6, characterized in that: A second support block (20) is installed on one side of the silicone pad (19). The side section of the second support block (20) is V-shaped. The end of each group of second support blocks (20) away from the silicone pad (19) is in contact with the support plate (18) and the inner wall of the buffer groove, respectively. The gaps in the inner wall of the buffer groove are filled with polyurethane.

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