A solid waste-filled CPVC power pipe
By using the inner and outer airbag structure of the CPVC power pipe filled with solid waste, the problem of dust and dirt adhesion during transportation is solved, ensuring the cleanliness of the plug end face, improving connection stability and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU GUOSU TECH PIPE CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-31
AI Technical Summary
During transportation, the CPVC power pipe filled with solid waste lacks an effective protective structure at the joint, leading to the adhesion of dust and dirt, which affects the long-term stability of the hot-melt surface connection.
A structure including a ferrule, a cone, an air cylinder, a suction tube, and an air outlet tube was designed. The pressure of the inner and outer air bladders is adjusted to fit the inner and outer walls of the solid waste-filled CPVC power pipe, preventing dust and dirt from adhering and keeping the mating end clean during transportation. The ferrule is removed for insertion during installation.
It effectively prevents dust and dirt from adhering, ensures the cleanliness of the plug-in end face, improves the stability and reliability of the connection, extends the service life, and reduces maintenance costs.
Smart Images

Figure CN224582778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CPVC power pipe technology, and in particular to a solid waste-filled CPVC power pipe. Background Technology
[0002] Solid waste-filled CPVC power pipes refer to power protection sleeves made with chlorinated polyvinyl chloride (CPVC) as the base material and modified by adding industrial solid waste such as fly ash, phosphogypsum, and slag as filler materials. This process utilizes industrial solid waste, reduces production costs, and improves the mechanical properties and thermal stability of CPVC pipes, including pressure resistance, corrosion resistance, and resistance to corrosion. Solid waste replaces part of the CPVC resin, reducing raw material costs, and the solid waste particles can improve the rigidity and flame retardancy of the pipe.
[0003] There are various ways to connect solid waste-filled CPVC power pipes. Among them, when plugging and connecting, the inner and outer walls of the connecting pipe need to be heated to expand or lock the diameter. However, during the transportation of solid waste-filled CPVC power pipes, there is no effective protective structure at the docking port. As a result, the dust or dirt residue adhering to the inner and outer walls of the docking port will affect the stability of the hot melt surface plugging and connecting in the long term. Therefore, we propose a solid waste-filled CPVC power pipe to solve the existing problems. Utility Model Content
[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a solid waste-filled CPVC power pipe.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a solid waste filling CPVC power pipe, comprising a power pipe, a clamping sleeve, a cone, an air cylinder, a suction pipe, and an outlet pipe. The power pipe has clamping sleeves at both ends. A cone is provided on the inner wall of the clamping sleeve. An inner air bladder is provided at one end of the cone. An outer air bladder is provided on the inner wall of the clamping sleeve. Air grooves are provided on the inner walls of both the clamping sleeve and the cone. An air cylinder is located inside the cone. A suction pipe is provided at one end of the air cylinder. An air inlet pipe communicating with the air grooves is provided at the upper end of the air cylinder. A stopper rod is provided on the inner wall of the air cylinder. A handle is provided at one end of the stopper rod, and a piston that is slidably installed inside the air cylinder is provided at the other end of the stopper rod.
[0006] Preferably, a rubber pad is fitted onto the outer wall of the cone, the cone is hollow inside and has an operating port through the ferrule at one end, and the handle is located inside the operating port at one end of the ferrule. The two ends of the solid waste-filled CPVC power pipe are in contact with the rubber pad to avoid friction from the rubber pad. Gripping the handle facilitates applying push-pull force to the stopper rod, and the handle is concealed before use through the operating port.
[0007] Preferably, a collar is fitted onto the outer wall of the piston rod, and a limiting ring with a radius larger than the inner wall of the cylinder opening is provided on the inner wall of the cylinder opening. When the piston rod moves, it drives the collar to move, and the limiting ring limits the movement of the collar, preventing the piston from completely disengaging from the cylinder.
[0008] Preferably, the suction tube is provided with a support ring and a valve ring inside, the valve ring is provided with a valve core inside, and a spring connected to the support ring is provided at one end of the valve core. The valve core is elastically supported inside the valve ring by the spring, so as to perform one-way elastic closure of the valve ring.
[0009] Preferably, one end of the valve core is provided with a guide rod located inside the spring and passing through the support ring. The guide rod slides inside the support ring and the spring, guiding the spring and preventing it from shifting during extension and retraction.
[0010] Preferably, the intake pipe is provided with a second support ring and a second valve ring, the first valve ring is provided with a second valve core, and one end of the second valve core is provided with a second spring connected to the second support ring. The second valve core is elastically supported inside the second valve ring by the second spring, so as to perform one-way elastic closure of the second valve ring.
[0011] Preferably, one end of the valve core two is provided with a guide rod two located inside the spring two and passing through the support ring two. The guide rod two slides inside the support ring two and the spring two, guiding the spring two and preventing the spring two from shifting during extension and retraction.
[0012] Preferably, the outer wall of the ferrule has a side groove, and a pressure relief pipe that penetrates the air groove is provided inside the side groove. A sealing cap is threadedly installed at the opening of the pressure relief pipe, and a retaining ring is sleeved on the outer wall of the pressure relief pipe. A sealing gasket is provided at one end of the retaining ring. The side groove conceals the pressure relief pipe, and the opening and closing of the pressure relief pipe is controlled by the sealing cap. The sealing gasket improves the sealing performance of the pressure relief cap.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model uses clamps fitted at both ends of a solid waste-filled CPVC power pipe. The inner wall of the clamp is provided with a conical tip. The inner air bladder at one end of the tip and the outer air bladder on the inner wall of the clamp are in contact with the inner and outer walls of the solid waste-filled CPVC power pipe. The internal pressure of the inner and outer air bladders can be adjusted to fit the mating end face of solid waste-filled CPVC power pipes of different specifications, avoiding the adhesion of dust and other dirt. During the storage and transportation of solid waste-filled CPVC power pipes, the mating end face is kept clean. During installation, the clamp is removed and inserted through a diameter expansion device. The mating surfaces are heat-fused together, preventing dust and dirt from affecting the long-term stability of the insertion and connection. Attached Figure Description
[0015] Figure 1This is a front-view three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a side view of the three-dimensional structure of the card sleeve of this utility model;
[0017] Figure 3 This is a three-dimensional cross-sectional view of the card sleeve of this utility model;
[0018] Figure 4 This is a three-dimensional cross-sectional view of the intake pipe of this utility model.
[0019] Figure 5 This is a front-view three-dimensional structural diagram of the pressure relief pipe of this utility model.
[0020] Reference numerals: 1. Power conduit; 2. Sleeve; 3. Operating port; 4. Side groove; 5. Inner airbag; 6. Outer airbag; 7. Cone; 8. Rubber pad; 9. Air cylinder; 10. Plug rod; 11. Handle; 12. Collar; 13. Limiting ring; 14. Piston; 15. Air groove; 16. Suction tube; 17. Valve core one; 18. Valve ring one; 19. Spring one; 20. Support ring one; 21. Guide rod one; 22. Air inlet pipe; 23. Valve core two; 24. Support ring two; 25. Valve ring two; 26. Guide rod two; 27. Spring two; 28. Pressure relief pipe; 29. Retaining ring; 30. Sealing gasket; 31. Sealing cap. Detailed Implementation
[0021] 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.
[0022] like Figures 1-5 As shown, the present invention proposes a solid waste filling CPVC power pipe, including a power pipe 1, a sleeve 2, a cone 7, an air cylinder 9, a suction pipe 16, and an air outlet pipe. Both ends of the power pipe 1 are provided with sleeves 2. The inner wall of the sleeve 2 is provided with a cone 7. One end of the cone 7 is provided with an inner air bladder 5. The inner wall of the sleeve 2 is provided with an outer air bladder 6. The inner walls of the sleeve 2 and the cone 7 are provided with interconnected air grooves 15. The cone 7 is provided with an air cylinder 9. One end of the air cylinder 9 is provided with a suction pipe 16. The upper end of the air cylinder 9 is provided with an air inlet pipe 22 that communicates with the air groove 15. The inner wall of the air cylinder 9 is provided with a stopper rod 10. One end of the stopper rod 10 is provided with a handle 11. One end of the stopper rod 10 is provided with a piston 14 that is slidably installed inside the air cylinder 9.
[0023] A rubber pad 8 is fitted onto the outer wall of the cone 7. The cone 7 is hollow inside and has an operating port 3 that penetrates the sleeve 2 at one end. The handle 11 is located inside the operating port 3 at one end of the sleeve 2.
[0024] A collar 12 is sleeved on the outer wall of the piston rod 10, and a limiting ring 13 with a radius larger than the inside of the collar 12 is provided on the inner wall of the opening of the air cylinder 9.
[0025] The suction tube 16 is provided with a support ring 20 and a valve ring 18 inside. The valve ring 18 is provided with a valve core 17 inside. One end of the valve core 17 is provided with a spring 19 connected to the support ring 20.
[0026] One end of the valve core 17 is provided with a guide rod 21 located inside the spring 19 and passing through the support ring 20;
[0027] The intake pipe 22 is equipped with a second support ring 24 and a second valve ring 25. The first valve ring 18 is equipped with a second valve core 23. One end of the second valve core 23 is equipped with a second spring 27 that is connected to the second support ring 24.
[0028] One end of valve core 23 is provided with guide rod 26 located inside spring 27 and passing through support ring 24;
[0029] The outer wall of the ferrule 2 has a side groove 4, and a pressure relief pipe 28 that penetrates the air groove 15 is installed inside the side groove 4. A sealing cap 31 is threadedly installed at the opening of the pressure relief pipe 28, and a retaining ring 29 is sleeved on the outer wall of the pressure relief pipe 28. A sealing gasket 30 is provided at one end of the retaining ring 29.
[0030] Based on the implementation steps of Example 1: During the storage and transportation stage of the power pipe 1, the sleeve 2 is respectively fitted onto both ends of the solid waste filled CPVC power pipe 1. The inner wall of the sleeve 2 is provided with a conical cone 7, and one end of the cone 7 is equipped with an inner air bladder 5. At the same time, the inner wall of the sleeve 2 is provided with an outer air bladder 6. The inner air bladder 5 and the outer air bladder 6 are in close contact with the inner and outer walls of the power pipe 1.
[0031] At this time, the airbag pressure is adjusted by operating the stopper rod 10. Grasp the handle 11 located inside the opening at one end of the sleeve 2 and apply a pushing or pulling force to the stopper rod 10. The stopper rod 10 drives the piston 14, which is slidably installed inside the air cylinder 9, to move. When the piston 14 moves into the air cylinder 9, the internal space of the air cylinder 9 decreases, and the gas enters the air groove 15 through the air inlet pipe 22, thereby causing the inner airbag 5 and the outer airbag 6 to expand, increasing the contact pressure with the power pipe 1. When the piston 14 moves outward, a negative pressure is formed inside the air cylinder 9, and the gas is drawn out through the suction pipe 16 to replenish the inner airbag 5 and the outer airbag 6.
[0032] In this way, the internal pressure of the inner and outer airbags 6 can be precisely adjusted according to the different specifications of solid waste filling CPVC power pipe 1, ensuring perfect fit with the docking end face of the power pipe 1, effectively preventing dust and dirt from adhering to the inner and outer walls of the docking port, and keeping the docking end face clean at all times during storage and transportation.
[0033] Inside the suction pipe 16 and the air inlet pipe 22, one-way valve structures are respectively set to ensure the correct gas flow direction. Inside the suction pipe 16, valve core 17 is elastically supported inside the valve ring 18 by spring 19, realizing one-way elastic closure. When the piston 14 draws air outward, valve core 17 is pushed open by the gas pressure, and the gas enters the air cylinder 9. When the piston 14 pushes air inward, valve core 17 closes quickly under the action of spring 19 to prevent gas backflow. Inside the air inlet pipe 22, valve core 23 is elastically supported inside the valve ring 25 by spring 27, also realizing one-way elastic closure, ensuring that the gas can only enter the air groove 15 from the air cylinder 9. In addition, one end of valve core 17 and valve core 23 is respectively provided with guide rod 21 and guide rod 26. The guide rod slides inside the support ring and the spring to guide the spring and prevent the spring from deviating during the extension and contraction process, ensuring the stable operation of the one-way valve.
[0034] When the power pipe 1 needs to be installed, the clamp 2 is removed from both ends of the power pipe 1. At this time, the clean mating end face is convenient for the insertion operation using the diameter expansion equipment. The mating surface can be heat-fused together. Since the adhesion of dust and dirt is effectively avoided during storage and transportation, these impurities are prevented from affecting the stability of long-term use after insertion and connection, ensuring the quality and reliability of the power pipe 1 connection, extending its service life, and reducing the later maintenance cost. In addition, the side groove 4 opened on the outer wall of the clamp 2 hides the pressure relief pipe 28. The opening and closing of the pressure relief pipe 28 can be controlled by the sealing cover 31. The pressure relief pipe 28 depressurizes the inner air bladder 5 and the outer air bladder 6, which facilitates the removal of the clamp 2 when the power pipe 1 is installed. The equipment can be reused after cleaning, reducing the use cost.
[0035] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A solid waste filled CPVC electrical power pipe comprising of electrical power pipe (1), a sleeve (2), a taper head (7), an air cylinder (9), a suction pipe (16) and an air outlet pipe, characterized in that: Both ends of the power pipe (1) are provided with a sleeve (2). The inner wall of the sleeve (2) is provided with a cone (7). One end of the cone (7) is provided with an inner air bladder (5). The inner wall of the sleeve (2) is provided with an outer air bladder (6). The inner walls of the sleeve (2) and the cone (7) are provided with interconnected air grooves (15). The cone (7) is provided with an air cylinder (9). One end of the air cylinder (9) is provided with a suction pipe (16). The upper end of the air cylinder (9) is provided with an air inlet pipe (22) that communicates with the air groove (15). The inner wall of the air cylinder (9) is provided with a stopper rod (10). One end of the stopper rod (10) is provided with a handle (11). One end of the stopper rod (10) is provided with a piston (14) that is slidably installed inside the air cylinder (9).
2. A solid waste filled CPVC electrical power pipe (1) as claimed in claim 1, wherein: The outer wall of the cone (7) is fitted with a rubber pad (8). The cone (7) is hollow inside and has an operating port (3) that penetrates the sleeve (2) at one end. The handle (11) is located inside the operating port (3) at one end of the sleeve (2).
3. A solid waste filled CPVC electrical power pipe (1) as claimed in claim 1, wherein: The outer wall of the plug rod (10) is fitted with a collar (12), and the inner wall of the opening of the air cylinder (9) is provided with a limiting ring (13) that is fitted on the outside of the plug rod (10) and has a radius larger than that inside the collar (12).
4. A solid waste filled CPVC electrical power pipe (1) as claimed in claim 1, wherein: The suction tube (16) is provided with a support ring (20) and a valve ring (18) inside. The valve ring (18) is provided with a valve core (17) inside. One end of the valve core (17) is provided with a spring (19) connected to the support ring (20).
5. A solid waste filled CPVC electrical power pipe (1) as claimed in claim 4, wherein: One end of the valve core (17) is provided with a guide rod (21) located inside the spring (19) and passing through the support ring (20).
6. A solid waste filled CPVC electrical power pipe (1) as claimed in claim 1, wherein: The intake pipe (22) is provided with a second support ring (24) and a second valve ring (25). The second valve ring (25) is provided with a second valve core (23). One end of the second valve core (23) is provided with a second spring (27) connected to the second support ring (24).
7. A solid waste filled CPVC electrical power pipe (1) as claimed in claim 6, wherein: One end of the valve core (23) is provided with a guide rod (26) located inside the spring (27) and passing through the support ring (24).
8. A solid waste filled CPVC electrical power pipe (1) as claimed in claim 1, wherein: The outer wall of the sleeve (2) is provided with a side groove (4), and a pressure relief pipe (28) that passes through the air groove (15) is provided inside the side groove (4). A sealing cap (31) is threadedly installed at the opening of the pressure relief pipe (28), and a retaining ring (29) is sleeved on the outer wall of the pressure relief pipe (28). A sealing gasket (30) is provided at one end of the retaining ring (29).