Gradient sandwiched glass fiber reinforced plastic jacking pipe
By using a flow control structure for gradient-filled glass fiber reinforced plastic jacking pipes, the turbulence problem of glass fiber reinforced plastic jacking pipes at high flow velocities is solved, achieving flow stability and reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN PROVINCE NEW LONGYUAN PIPE
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-19
AI Technical Summary
Existing fiberglass plastic jacking pipes are prone to turbulence under high-velocity water flow, which leads to wear on the inner wall and increased frictional resistance, shortening service life and increasing energy consumption.
The gradient sand-filled glass fiber reinforced plastic jacking pipe adopts a combination structure of sliding rod, blade, baffle frame and outer rotating frame to control the flow velocity, avoid turbulence and ensure stable flow.
Effective flow rate control avoids turbulence, reduces local pressure loss, extends pipeline lifespan, and lowers energy consumption.
Smart Images
Figure CN224381005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic jacking technology, specifically to a gradient sand-filled glass fiber reinforced plastic jacking pipe. Background Technology
[0002] Currently, fiberglass plastic jacking pipe is a type of pipe made of glass fiber reinforced plastic, which is widely used in pipe jacking technology. It is composed of epoxy resin, polyester resin or other synthetic resins and glass fiber, and has the characteristics of high strength, light weight, corrosion resistance and insulation.
[0003] Currently, plastic pipes are less resistant to erosion than metal pipes. When the flow velocity exceeds 3m / s, the turbulent flow can easily cause wear or mechanical scratches on the inner wall, shortening the service life. Excessive flow velocity will increase the frictional resistance between the water flow and the pipe wall, significantly increasing pumping energy consumption and system operating costs. Utility Model Content
[0004] This invention provides a gradient sand-filled glass fiber reinforced plastic jacking pipe. The flow velocity inside the plastic jacking pipe can be controlled by a sliding rod, blades, baffle frame and outer rotating frame. Reasonable flow velocity control can avoid turbulence, ensure stable flow in the pipe and reduce local pressure loss.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a gradient sand-filled glass fiber reinforced plastic jacking pipe, comprising:
[0006] Pipe jacking body;
[0007] The flow control structure is located inside the main body of the pipe jacking system;
[0008] The flow control structure includes a sliding rod, two blades, two baffles, and an outer rotating frame. The outer wall of the sliding rod is slidably embedded in the jacking pipe body. The two blades are rotatably sleeved on the sliding rod on their adjacent sides. A spring is provided between the sliding rod and the two blades. The outer walls of the two baffles are symmetrically fixedly embedded in the jacking pipe body and located on both sides of the two blades. The inner wall of the outer rotating frame is rotatably sleeved on the jacking pipe body. Both ends of the sliding rod are threaded into the outer rotating frame.
[0009] As a gradient sand-filled glass fiber reinforced plastic jacking pipe of this utility model, a main sealing ring is embedded between the outer rotating frame and the jacking pipe body.
[0010] As a gradient sand-filled glass fiber reinforced plastic jacking pipe of this utility model, the outer wall of the jacking pipe body is threaded with a clamping frame.
[0011] As a gradient sand-filled glass fiber reinforced plastic jacking pipe of this utility model, a secondary sealing ring is embedded between the outer rotating frame and the clamping frame.
[0012] As a gradient sand-filled glass fiber reinforced plastic jacking pipe of this utility model, the outer wall of the outer rotating frame is symmetrically extended with baffles.
[0013] This invention provides a gradient-filled, sand-reinforced glass fiber reinforced plastic jacking pipe. It has the following beneficial effects:
[0014] (1) The gradient sand-filled glass fiber reinforced plastic jacking pipe can control the flow velocity inside the plastic jacking pipe through sliding rods, blades, baffles and outer rotating frames. Reasonable flow velocity control can avoid turbulence, ensure stable flow state inside the pipe and reduce local pressure loss. Attached Figure Description
[0015] Figure 1 This is the front view of the present invention;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 This is an exploded view of the present invention.
[0018] In the diagram: 1. Main body of the jacking pipe; 2. Sliding rod; 3. Blade; 4. Baffle frame; 5. Outer rotating frame; 6. Main sealing ring; 7. Clamping frame; 8. Secondary sealing ring; 9. Flip plate. Detailed Implementation
[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Please see Figure 1-3 This utility model provides a technical solution: a gradient sand-filled glass fiber reinforced plastic jacking pipe, comprising:
[0021] Pipe jacking body 1;
[0022] The flow control structure is located inside the main body 1 of the pipe jacking system;
[0023] The flow control structure includes a sliding rod 2, two blades 3, two baffle frames 4, and an outer rotating frame 5. The outer wall of the sliding rod 2 is slidably embedded in the jacking pipe body 1. The two blades 3 are rotatably sleeved on the sliding rod 2 on their respective sides. A spring is provided between the sliding rod 2 and the two blades 3. The outer walls of the two baffle frames 4 are symmetrically fixedly embedded in the jacking pipe body 1 and located on both sides of the two blades 3. The inner wall of the outer rotating frame 5 is rotatably sleeved on the jacking pipe body 1. Both ends of the sliding rod 2 are threadedly embedded in the outer rotating frame 5.
[0024] In this implementation scheme: the jacking pipe body 1 can be connected to the pipeline. During the rotation of the outer rotating frame 5, the sliding rod 2 can move back and forth inside the jacking pipe body 1 using the threaded groove on the inner wall, thereby driving the two blades 3 to move. The two blades 3 are movably mounted on the sliding rod 2 by springs, preventing the two blades 3 from getting close to each other. The two baffle frames 4 can restrict the two blades 3, so that the two blades 3 move close to each other. When they move to the center, they return to their original position by the action of the springs, thereby controlling the flow velocity inside the plastic jacking pipe. Reasonable flow velocity control can avoid the generation of turbulence, ensure the stable flow state inside the pipeline, and reduce local pressure loss.
[0025] Specifically, a main sealing ring 6 is embedded between the outer rotating frame 5 and the jacking pipe body 1.
[0026] In this embodiment, the main sealing ring 6 can be used to seal the outer rotating frame 5 and the jacking pipe body 1.
[0027] Specifically, the outer wall of the jacking pipe body 1 is threaded with a clamping frame 7.
[0028] In this embodiment, the outer rotating frame 5 can be clamped by the clamping frame 7 to form a fixed shape, which increases the sealing performance and prevents the outer rotating frame 5 from rotating.
[0029] Specifically, a secondary sealing ring 8 is embedded between the outer rotating frame 5 and the clamping frame 7.
[0030] In this embodiment, the sealing between the outer rotating frame 5 and the clamping frame 7 is increased by the secondary sealing ring 8.
[0031] Specifically, the outer wall of the outer rotating frame 5 has symmetrically extended pieces 9.
[0032] In this embodiment, the outer rotating frame 5 can be easily rotated by the pry bar 9.
[0033] In use, the jacking pipe body 1 can be connected to the pipe. The outer rotating frame 5 can be easily rotated by the lever 9. During the rotation of the outer rotating frame 5, the sliding rod 2 can move back and forth inside the jacking pipe body 1 by using the threaded groove on the inner wall, thereby driving the two blades 3 to move. The two blades 3 are spring-loaded on the sliding rod 2 to prevent the two blades 3 from getting close to each other. The two baffle frames 4 can restrict the two blades 3, so that the two blades 3 move close to each other. When they move to the center, they will return to their original position by the action of the spring, thereby controlling the flow rate inside the plastic jacking pipe. Reasonable flow rate control can avoid turbulence, ensure the stable flow state inside the pipe, and reduce local pressure loss. The main sealing ring 6 can seal the outer rotating frame 5 and the jacking pipe body 1. The clamping frame 7 can clamp the outer rotating frame 5 to form a fixed position, increasing the sealing performance and preventing the outer rotating frame 5 from rotating. The secondary sealing ring 8 increases the sealing performance between the outer rotating frame 5 and the clamping frame 7.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A gradient-sandwiched glass fiber reinforced plastic jacking pipe, characterized in that, include: Pipe jacking body (1); The flow control structure is located inside the main body of the pipe jacking (1); The flow control structure includes a sliding rod (2), two blades (3), two baffles (4) and an outer rotating frame (5). The outer wall of the sliding rod (2) is slidably embedded in the jacking pipe body (1). The two blades (3) are rotatably sleeved on the sliding rod (2) on the side that is close to each other. A spring is provided between the sliding rod (2) and the two blades (3). The outer walls of the two baffles (4) are symmetrically fixedly embedded in the jacking pipe body (1) and located on both sides of the two blades (3). The inner wall of the outer rotating frame (5) is rotatably sleeved on the jacking pipe body (1). Both ends of the sliding rod (2) are threadedly embedded in the outer rotating frame (5).
2. A gradient sandwiched glass fiber reinforced plastic jacking pipe according to claim 1, characterized in that: A main sealing ring (6) is embedded between the outer rotating frame (5) and the jacking pipe body (1).
3. A gradient sandwiched glass fiber reinforced plastic jacking pipe according to claim 2, characterized in that: The outer wall of the jacking pipe body (1) is threaded with a clamping frame (7).
4. A gradient sandwiched glass fiber reinforced plastic jacking pipe according to claim 3, characterized in that: A secondary sealing ring (8) is embedded between the outer rotating frame (5) and the clamping frame (7).
5. A gradient sandwiched glass fiber reinforced plastic jacking pipe according to claim 4, characterized in that: The outer wall of the outer rotating frame (5) is symmetrically extended with flaps (9).