High-sealing PCCP steel cylinder concrete pipeline convenient to install

Abstract

The utility model discloses a high-sealing PCCP steel cylinder concrete pipeline convenient to install, and particularly relates to the technical field of PCCPs, the high-sealing PCCP steel cylinder concrete pipeline convenient to install comprises a main body steel cylinder, an outer fixing ring is fixedly arranged on one side of the main body steel cylinder, an outer sealing groove is formed in the outer fixing ring, and a first sealing ring is arranged in the outer sealing groove in an inserted mode; a fixing ring is fixedly arranged on one side of the first sealing ring, a connecting mechanism is arranged on one side of the fixing ring and comprises connecting boxes fixedly arranged on the two sides of the fixing ring, connecting plates are slidably arranged in the connecting boxes, springs are fixedly arranged at the tops of the connecting plates, and one ends of the springs are connected with the inner walls of the connecting boxes. A through hole is formed in the surface of the connecting plate. According to the utility model, the pipelines can be quickly connected and fixed, the installation difficulty and time cost are reduced, the stable connection of the pipelines is ensured, the overall structural strength and stability of the pipelines are improved, and the safe operation is ensured.

Description

Technical Field

[0001] This utility model relates to the field of PCCP pipeline technology, and more specifically, to a high-sealing PCCP steel cylinder concrete pipeline that is easy to install. Background Technology

[0002] Prestressed concrete cylinder pipe, or PCCP for short, is used as cities expand rapidly with the acceleration of urbanization and the increasing demands on water supply and drainage systems. With its large diameter and high pressure resistance, PCCP pipe can meet the needs of large-scale urban water supply and drainage, and can be used as a main water supply and drainage pipe to provide urban residents with a stable water and drainage guarantee.

[0003] The existing PCCP pipe sealing structure has gaps, which allow external corrosive media to enter the PCCP pipe and corrode it, shortening its service life. Moreover, disassembling and replacing the PCCP pipe is very troublesome, time-consuming and labor-intensive.

[0004] A search revealed that Chinese patent CN216692536U discloses a basalt composite reinforced PCCP pipe. In this structure, a mortar protective layer protects the exterior of the main body, prestressed steel wires enhance the stability of the main body, a steel cylinder increases strength, and the connection between the spigot and socket shaped steel rings provides initial sealing. The first sealing ring and expansion ring isolate corrosive media, preventing pipe corrosion and extending service life. The telescopic device allows the adjusting rod to rotate, simplifying pipe disassembly and replacement, saving time and labor. Furthermore, the connecting block is circular, assisting in the use of the telescopic device, and the second sealing ring further improves sealing performance, ensuring the pipe's effectiveness.

[0005] However, in actual use, this structure only mentions that the telescopic device allows the adjusting rod to rotate for easy pipe disassembly and replacement. The ease of installation is low, and the connection parts are prone to loosening and displacement, which in turn affects the overall performance. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-sealing PCCP steel cylinder concrete pipe that is easy to install, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-sealing PCCP steel cylinder concrete pipe that is easy to install includes a main steel cylinder. An outer fixing ring is fixedly installed on one side of the main steel cylinder. An outer sealing groove is opened inside the outer fixing ring. A first sealing ring is inserted into the outer sealing groove. A fixing ring is fixedly installed on one side of the first sealing ring. A connecting mechanism is provided on one side of the fixing ring.

[0009] The connecting mechanism includes connecting boxes fixedly disposed on both sides of a fixing ring. A connecting plate is slidably disposed inside the connecting box. A spring is fixedly disposed on the top of the connecting plate. One end of the spring is connected to the inner wall of the connecting box. A through hole is opened on the surface of the connecting plate. A bearing is disposed inside the through hole. The outer ring of the bearing is connected to the inner wall of the through hole. A fixing rod is disposed on the inner wall of the bearing. A handle is fixedly disposed on one end of the fixing rod. A locking rod is fixedly disposed on the bottom of the connecting plate. An L-shaped block is sleeved on the outside of the locking rod. A locking block is fixedly disposed on the other end of the fixing rod. A locking slot is opened on the surface of the connecting box. The locking block matches the locking slot. A scissor is fixedly disposed on the surface of the handle. One end of the L-shaped block is connected to the surface of the outer fixing ring.

[0010] By adopting the above technical solution, the connection and fixation between pipes can be quickly realized, reducing installation difficulty and time cost, and ensuring the stability of pipe connection.

[0011] As a further description of the above technical solution: the main steel cylinder is provided with an auxiliary sealing mechanism, which includes a retaining ring groove opened inside the fixing ring. An expansion water-stop strip is fixedly installed inside the retaining ring groove and is sleeved on the outside of the outer fixing ring. An outer core concrete is fixedly installed inside the main steel cylinder. A mortar protective layer is fixedly installed on one side of the outer core concrete. A prestressed steel wire is fixedly installed inside the mortar protective layer. An inner core concrete is fixedly installed inside the main steel cylinder.

[0012] By adopting the above technical solutions, multiple seals are formed, effectively preventing the infiltration of external water and other media and the leakage of internal media, thus enhancing the sealing effect. Moreover, the outer core concrete and the inner core concrete, combined with prestressed steel wires, jointly bear the internal and external pressure and load of the pipeline, improving the overall structural strength and stability of the pipeline and ensuring safe operation.

[0013] As a further description of the above technical solution: an inner sealing groove is provided inside the inner core concrete, and a second sealing ring is inserted into the inner sealing groove; an anti-corrosion coating is fixedly provided on the surface of the main steel cylinder, and the anti-corrosion coating can be made of epoxy ceramic material.

[0014] By adopting the above technical solution, the epoxy ceramic anti-corrosion coating on the surface of the main steel cylinder has excellent anti-corrosion performance, which can effectively resist the erosion of various corrosive substances, extend the service life of the main steel cylinder, and thus improve the durability and reliability of the entire pipeline system.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. By setting up a connection mechanism, compared with the existing technology, when connecting pipes, it is only necessary to operate the handle to rotate it and make it linked with the locking block to separate or engage with the locking slot. Then, by pulling the handle to drive the connecting plate to slide, the connection preparation and fixing steps can be completed. This greatly shortens the installation time, significantly improves construction efficiency, and reduces labor costs and construction difficulty. Moreover, the locking rod at the bottom of the connecting plate is inserted into the L-shaped block to achieve the initial connection. Then, the connecting plate is fixed by the locking block and the locking slot. This design effectively prevents the loosening and displacement of the connection parts, so that the pipeline can still maintain the structural stability and safety when subjected to internal pressure and external loads, and extend the overall service life of the pipeline.

[0017] 2. By setting up an auxiliary sealing mechanism, the sealing performance is stronger than that of existing technologies. The first and second sealing rings form outer and inner sealing barriers respectively, preventing the intrusion of external media and the leakage of internal media. The expansion sealing strip expands when it comes into contact with water to further fill the gaps, achieving a high level of sealing. Moreover, the structure is safe and reliable. The inner and outer core concrete and prestressed steel wire work together to bear the internal pressure and external load, ensuring the normal operation of the pipeline. The anti-corrosion coating protects the main steel cylinder from corrosion, extending the service life of the pipeline. It meets the actual engineering requirements for installation efficiency and quality, and reduces construction difficulty and cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the connection mechanism of this utility model.

[0021] Figure 4 This is a cross-sectional structural diagram of the connection mechanism of this utility model.

[0022] Figure 5 This is a schematic diagram of the auxiliary sealing mechanism of this utility model.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the main steel cylinder of this utility model.

[0024] The attached diagram is labeled as follows: 1. Main steel cylinder; 2. Outer fixing ring; 3. Outer sealing groove; 4. First sealing ring; 5. Fixing ring; 6. Connecting box; 7. Connecting plate; 8. Spring; 9. Bearing; 10. Fixing rod; 11. Handle; 12. Clamping rod; 13. L-shaped block; 14. Clamping block; 15. Clamping slot; 16. Arrowhead label; 17. Clamping ring groove; 18. Expansion waterstop strip; 19. Outer core concrete; 20. Mortar protective layer; 21. Prestressed steel wire; 22. Inner core concrete; 23. Inner sealing groove; 24. Second sealing ring; 25. Anti-corrosion coating. Detailed Implementation

[0025] 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.

[0026] The embodiments disclosed in this application are as follows: Figure 1-6 The present invention relates to a high-sealing PCCP steel cylinder concrete pipe that is easy to install, comprising a main steel cylinder, an outer fixing ring fixedly provided on one side of the main steel cylinder, an outer sealing groove provided inside the outer fixing ring, a first sealing ring inserted into the outer sealing groove, a fixing ring fixedly provided on one side of the first sealing ring, and a connecting mechanism provided on one side of the fixing ring.

[0027] The connecting mechanism includes connecting boxes fixedly mounted on both sides of a fixing ring. A connecting plate is slidably mounted inside the connecting box. A spring is fixedly mounted on the top of the connecting plate, with one end of the spring connected to the inner wall of the connecting box. A through hole is opened on the surface of the connecting plate, and a bearing is installed inside the through hole. The outer ring of the bearing is connected to the inner wall of the through hole. A fixing rod is installed on the inner wall of the bearing. A handle is fixedly mounted on one end of the fixing rod. A locking rod is fixedly mounted on the bottom of the connecting plate, and an L-shaped block is fitted on the outside of the locking rod. A locking block is fixedly mounted on the other end of the fixing rod. A locking slot is opened on the surface of the connecting box, and the locking block matches the locking slot. A scissor is fixedly mounted on the surface of the handle. One end of the L-shaped block is connected to the surface of the outer fixing ring. When connecting pipes, the pipe port with the L-shaped block is brought close to the port of another pipe, and then the handle is gripped. Since the handle is connected to the connecting plate through the fixing rod, and the fixing rod is mounted in the through hole of the connecting plate through the bearing, rotating the handle causes the locking block at the other end of the fixing rod to separate from the locking slot on the surface of the connecting box. Since the locking block matches the locking slot, the position originally used to fix the connecting plate is restored.

[0028] Then pull the handle upwards to slide the connecting plate upwards inside the connecting box, compressing the spring. One end of the spring is connected to the inner wall of the connecting box, and the other end is connected to the top of the connecting plate. Insert the port of this pipe into the outer fixing ring of another pipe, so that the first sealing ring is in close contact with the corresponding outer sealing groove. At the same time, the inner sealing groove of the inner core concrete is also aligned with the corresponding part of the other pipe, so that the second sealing ring can perform its sealing function normally.

[0029] Next, release the handle. Under the elastic force of the spring, the connecting plate moves downward. The locking rod at the bottom of the connecting plate inserts into the L-shaped block, realizing the initial connection of the two pipes. Turn the handle again to make the locking block at the other end of the fixing rod re-lock into the slot on the surface of the connecting box, fixing the position of the connecting plate and ensuring the stability of the connection.

[0030] During the pipe connection process, the first sealing ring is squeezed into the outer sealing groove to form an external sealing barrier, preventing external water or other media from entering the pipe connection. The second sealing ring is squeezed into the inner sealing groove of the inner core concrete to prevent the medium transported inside the pipe from leaking from the connection.

[0031] Reference Figure 2-4 As shown, the main steel cylinder is equipped with an auxiliary sealing mechanism. The auxiliary sealing mechanism includes a retaining ring groove inside the fixing ring, an expansion water-stop strip fixed inside the retaining ring groove, and the expansion water-stop strip is sleeved on the outside of the outer fixing ring. The main steel cylinder is equipped with an outer core concrete, a mortar protective layer is fixed on one side of the outer core concrete, a prestressed steel wire is fixed inside the mortar protective layer, and an inner core concrete is fixed inside the main steel cylinder. During the pipeline connection process, the first sealing ring is squeezed into the outer sealing groove to form an external sealing barrier, preventing external water or other media from entering the pipeline connection. The second sealing ring is squeezed into the inner sealing groove of the inner core concrete to prevent the medium transported inside the pipeline from leaking from the connection.

[0032] Reference Figure 5-6 As shown, an inner sealing groove is opened inside the inner core concrete, and a second sealing ring is inserted into the inner sealing groove. An anti-corrosion coating is fixedly installed on the surface of the main steel cylinder. The anti-corrosion coating can be made of epoxy ceramic material. When there is water around the pipe, the expansion sealing strip is set in the retaining groove inside the fixed ring and is sleeved on the outside of the pipe port. It expands when it comes into contact with water, fills any possible tiny gaps, further enhances the sealing performance, and achieves a high sealing effect.

[0033] During use, the inner core concrete, outer core concrete, and prestressed steel wires work together to bear the pressure of the medium transported inside the pipeline as well as the external load, ensuring the structural safety and normal operation of the pipeline. The anti-corrosion coating continuously protects the main steel cylinder from corrosion, extending the service life of the pipeline. The high-sealing PCCP steel cylinder concrete pipeline, which is easy to install, can achieve fast and stable connection and good sealing performance, meeting the needs of actual engineering projects.

[0034] Working principle of this utility model:

[0035] This utility model is a high-sealing PCCP steel cylinder concrete pipe that is easy to install. When the device is in use, the main steel cylinder is the main structural part of the pipe. It is ensured that its surface is covered with an anti-corrosion coating. The anti-corrosion coating can be made of epoxy ceramic material, which can effectively prevent the main steel cylinder from being corroded. In addition, the inner core concrete and the outer core concrete provide structural strength. The prestressed steel wire applies prestress to enhance the pipe's compressive strength. The mortar protective layer protects the prestressed steel wire.

[0036] When connecting pipes, bring the pipe port with the L-shaped block close to the port of another pipe, then hold the handle. Since the handle is connected to the connecting plate through the fixing rod, and the fixing rod is set in the through hole of the connecting plate through the bearing, turn the handle to separate the locking block at the other end of the fixing rod from the locking slot on the surface of the connecting box. Since the locking block matches the locking slot, the position originally used to fix the connecting plate is now in place.

[0037] Then pull the handle upwards to slide the connecting plate upwards inside the connecting box, compressing the spring. One end of the spring is connected to the inner wall of the connecting box, and the other end is connected to the top of the connecting plate. Insert the port of this pipe into the outer fixing ring of another pipe, so that the first sealing ring is in close contact with the corresponding outer sealing groove. At the same time, the inner sealing groove of the inner core concrete is also aligned with the corresponding part of the other pipe, so that the second sealing ring can perform its sealing function normally.

[0038] Next, release the handle. Under the elastic force of the spring, the connecting plate moves downward. The locking rod at the bottom of the connecting plate inserts into the L-shaped block, realizing the initial connection of the two pipes. Turn the handle again to make the locking block at the other end of the fixing rod re-lock into the slot on the surface of the connecting box, fixing the position of the connecting plate and ensuring the stability of the connection.

[0039] During the pipe connection process, the first sealing ring is squeezed into the outer sealing groove to form an external sealing barrier, preventing external water or other media from entering the pipe connection. The second sealing ring is squeezed into the inner sealing groove of the inner core concrete to prevent the medium transported inside the pipe from leaking from the connection.

[0040] Furthermore, when there is water around the pipe, the expansion sealing strip is set in the retaining ring groove inside the fixing ring and sleeved on the outside of the pipe port. It expands when it comes into contact with water, filling any tiny gaps that may exist, further enhancing the sealing performance and achieving a high sealing effect.

[0041] During use, the inner core concrete, outer core concrete, and prestressed steel wires work together to bear the pressure of the medium transported inside the pipeline as well as the external load, ensuring the structural safety and normal operation of the pipeline. The anti-corrosion coating continuously protects the main steel cylinder from corrosion, extending the service life of the pipeline. The high-sealing PCCP steel cylinder concrete pipeline, which is easy to install, can achieve fast and stable connection and good sealing performance, meeting the needs of actual engineering projects.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high sealed PCCP steel cylinder concrete pipe for easy installation comprising a main steel cylinder (1) characterized in that: One side of the main steel cylinder (1) is fixedly provided with an outer fixed ring (2), the inner part of the outer fixed ring (2) is provided with an outer sealing groove (3), the inner part of the outer sealing groove (3) is inserted with a first sealing ring (4), one side of the first sealing ring (4) is fixedly provided with a fixed ring (5), one side of the fixed ring (5) is provided with a connecting mechanism. The connecting mechanism comprises a connecting box (6) fixedly arranged on both sides of the fixed ring (5), a connecting plate (7) is slidably arranged in the connecting box (6), a spring (8) is fixedly arranged on the top of the connecting plate (7), one end of the spring (8) is connected with the inner wall of the connecting box (6), a through hole is formed in the surface of the connecting plate (7), a bearing (9) is arranged in the through hole, the outer ring of the bearing (9) is connected with the inner wall of the through hole, a fixed rod (10) is arranged on the inner wall of the bearing (9), a handle (11) is fixedly arranged on one end of the fixed rod (10), a clamping rod (12) is fixedly arranged on the bottom of the connecting plate (7), an L-shaped block (13) is sleeved on the outer part of the clamping rod (12).

2. The easy to install high sealed PCCP steel cylinder concrete pipe as claimed in claim 1 wherein: The other end of the fixed rod (10) is fixedly provided with a clamping block (14), the surface of the connecting box (6) is provided with a bayonet (15), the clamping block (14) is matched with the bayonet (15), the surface of the handle (11) is fixedly provided with a cutting head mark (16), one end of the L-shaped block (13) is connected with the surface of the outer fixed ring (2).

3. The easy to install high sealed PCCP steel cylinder concrete pipe as claimed in claim 1 wherein: The inner part of the main steel cylinder (1) is provided with an auxiliary sealing mechanism, the auxiliary sealing mechanism comprises a clamping ring groove (17) formed in the inner part of the fixed ring (5), an expansion water stop (18) is fixedly arranged in the inner part of the clamping ring groove (17), the expansion water stop (18) is sleeved on the outer part of the outer fixed ring (2).

4. The easy to install high sealed PCCP steel cylinder concrete pipe as claimed in claim 1 wherein: The inner part of the main steel cylinder (1) is fixedly provided with an outer pipe core concrete (19), one side of the outer pipe core concrete (19) is fixedly provided with a mortar protective layer (20), the inner part of the mortar protective layer (20) is fixedly provided with a prestressed steel wire (21), the inner part of the main steel cylinder (1) is fixedly provided with an inner pipe core concrete (22).

5. The easy to install high sealed PCCP steel cylinder concrete pipe as claimed in claim 4 wherein: The inner part of the inner pipe core concrete (22) is provided with an inner sealing groove (23), the inner part of the inner sealing groove (23) is inserted with a second sealing ring (24).

6. The easy to install high sealed PCCP steel cylinder concrete pipe as claimed in claim 1 wherein: The surface of the main steel cylinder (1) is fixedly provided with an anti-corrosion coating (25), the anti-corrosion coating (25) can be made of epoxy ceramic material.

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