Double-seal prestressed concrete cylinder pipe

Abstract

This utility model discloses a double-sealed prestressed steel cylinder concrete pipe, relating to the technical field of prestressed steel cylinder concrete pipes. It includes a prestressed steel cylinder concrete pipe body, comprising a steel cylinder layer, an inner concrete ring on the inner side of the steel cylinder layer, and an outer concrete ring on the outer side of the steel cylinder layer. A protrusion is fixedly installed at one end of the steel cylinder layer, and a connecting block is fixedly installed at the other end of the steel cylinder layer. Both the protrusion and the connecting block are located outside the inner and outer concrete rings, respectively. When two prestressed steel cylinder concrete pipe bodies are connected, a sealing ring one is inserted into the inner end of the connecting block, and the outer end of the connecting block is inserted into the connecting groove. Simultaneously, a sealing ring two is inserted into the sealing groove, providing a double seal at the connection point of the two prestressed steel cylinder concrete pipe bodies, ensuring a good seal at the socket joint and providing excellent seepage prevention and pressure resistance.

Description

Technical Field

[0001] This utility model relates to the field of prestressed steel cylinder concrete pipe technology, specifically a double-sealed prestressed steel cylinder concrete pipe. Background Technology

[0002] Prestressed steel cylinder concrete pipe refers to a water conveyance pipe made by winding circumferential prestressed steel wires around a high-strength concrete core with a steel cylinder, and then spraying a dense cement mortar protective layer on it. In reality, this type of pipe is widely used in main pipeline projects in urban water supply and drainage, industrial water supply, irrigation water conservancy, and power plant water supply. In addition, it is also widely used in factory pipe networks, inverted siphon pipes, pressure tunnel pipes, and deep-covered culvert pipes.

[0003] Existing prestressed steel cylinder concrete pipes generally use a socket and spigot structure for connection. In order to ensure the connection strength, it is generally necessary to set special sockets and spigots at both ends of the prestressed steel cylinder concrete pipe to achieve the connection between the prestressed steel cylinder concrete pipes.

[0004] However, the spigot and socket joints of prestressed concrete cylinder pipes are buried together in the soil environment, covered with backfill. This backfill may be used for road sections, bridges, or other purposes. Both must withstand a certain amount of pressure. Because the main pipe is protected by a mortar layer, a concrete layer, and prestressed steel wires, its compressive strength is much greater than that of the spigot and socket joint. If damage, perforation, or leakage occurs at the spigot and socket joint, it will pose a hidden danger to the safe operation of the pipeline system, directly threatening its operational safety and reliability. Therefore, it is necessary to develop a scientifically designed, simple-to-manufacture and installable anti-seepage structure for the spigot and socket joints of prestressed concrete cylinder pipes. This structure should be able to reinforce, strengthen, and prevent seepage at the spigot and socket joints of the pipe ends, ensuring a good seal, good anti-seepage performance, and high compressive strength. Utility Model Content

[0005] This invention provides a double-sealed prestressed steel cylinder concrete pipe, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a double-sealed prestressed steel cylinder concrete pipe, comprising a prestressed steel cylinder concrete pipe body, wherein the prestressed steel cylinder concrete pipe body comprises a steel cylinder layer, an inner concrete ring is provided on the inner side of the steel cylinder layer, an outer concrete ring is provided on the outer side of the steel cylinder layer, a protrusion is fixedly installed at one end of the steel cylinder layer, and a connecting block is fixedly installed at the other end of the steel cylinder layer, wherein the protrusion and the connecting block are both located on the outer side of the inner concrete ring and the outer concrete ring;

[0007] A sealing ring 1 is fixedly installed at one end of the outer ring of the concrete, and a sealing ring 2 is detachably sleeved at the outer end of the protrusion. A sealing groove is opened at one end of the inner ring of the concrete. When the two prestressed steel cylinder concrete pipes are connected, the sealing ring 1 is inserted into the inner end of the connecting block, and the sealing ring 2 is inserted into the sealing groove.

[0008] Preferably, a connecting groove is provided on the upper side of the concrete outer ring away from the connecting block, and when the sealing ring is inserted into the inner end of the connecting block, the outer end of the connecting block is inserted into the connecting groove.

[0009] Preferably, the sealing groove is formed on the side wall of the inner ring of the concrete away from the protrusion.

[0010] Preferably, one end of the second sealing ring is provided with a sleeve groove, the inner wall of the sleeve groove is provided with a limiting groove, the protrusion is annular, a protruding ring is fixedly installed on the outer end of the protrusion, the sleeve groove is sleeved on the outer end of the protrusion, and the protruding ring is inserted into the limiting groove by squeezing the second sealing ring.

[0011] Preferably, the prestressed steel cylinder concrete pipe is provided with a tie member on the outside. The tie member includes a limiting ring fixed on the outer wall of the left and right ends of the concrete outer ring. The limiting ring and the concrete outer ring are integrally formed.

[0012] Preferably, the outer end of the concrete outer ring is fitted with a butt ring, and a plurality of circular holes are evenly opened on the side wall of the butt ring, and tie bolts are installed in the circular holes on the two butt rings.

[0013] This utility model provides a double-sealed prestressed steel cylinder concrete pipe. It has the following beneficial effects:

[0014] When connecting two prestressed steel cylinder concrete pipes, sealing ring one is inserted into the inner end of the joint block, and the outer end of the joint block is inserted into the connecting groove. At the same time, sealing ring two is inserted into the sealing groove, thus providing a double seal at the connection of the two prestressed steel cylinder concrete pipes, ensuring a good seal at the spigot and socket joint, and providing good seepage prevention and pressure resistance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection of the prestressed steel cylinder concrete pipe of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the prestressed steel cylinder concrete pipe connection of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the prestressed steel cylinder concrete pipe of this utility model.

[0018] Figure 4 This is a schematic diagram of the second cross-section of the prestressed steel cylinder concrete pipe of this utility model;

[0019] Figure 5This utility model Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Steel cylinder layer; 2. Outer concrete ring; 3. Inner concrete ring; 4. Limiting ring; 5. Butt ring; 6. Circular hole; 7. Tie bolt; 8. Sealing ring one; 9. Protrusion; 10. Sealing ring two; 11. Protruding ring; 12. Limiting groove; 13. Sealing groove; 14. Butt block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a double-sealed prestressed steel cylinder concrete pipe, including a prestressed steel cylinder concrete pipe body, the prestressed steel cylinder concrete pipe body including a steel cylinder layer 1, an inner concrete ring 3 is provided on the inner side of the steel cylinder layer 1, and an outer concrete ring 2 is provided on the outer side of the steel cylinder layer 1. The steel cylinder layer 1, the inner concrete ring 3, and the outer concrete ring 2 are integrated. A protrusion 9 is fixedly installed at one end of the steel cylinder layer 1, and a connecting block 14 is fixedly installed at the other end of the steel cylinder layer 1. Both the protrusion 9 and the connecting block 14 are located on the outer side of the inner concrete ring 3 and the outer concrete ring 2. A connecting groove is opened on the upper side of the end of the outer concrete ring 2 away from the connecting block 14. A sealing groove 13 is opened on one end of the inner concrete ring 3. The sealing groove 13 is opened on the side wall of the inner concrete ring 3 away from the protrusion 9, which facilitates the connection of two prestressed steel cylinder concrete pipe bodies.

[0023] A sealing ring 8 is fixedly installed at one end of the concrete outer ring 2, and a sealing ring 10 is detachably sleeved on the outer end of the protrusion 9. When the two prestressed steel cylinder concrete pipes are connected, the sealing ring 8 is inserted into the inner end of the connecting block 14, the outer end of the connecting block 14 is inserted into the connecting groove, and at the same time, the sealing ring 10 is inserted into the sealing groove 13, so as to double seal the connection of the two prestressed steel cylinder concrete pipes.

[0024] like Figure 2 and Figure 5As shown, in some embodiments, one end of the sealing ring 2 10 is provided with a sleeve groove, and the inner wall of the sleeve groove is provided with a limiting groove 12. The protrusion 9 is annular, and a protruding ring 11 is fixedly installed on the outer end of the protrusion 9. The sleeve groove is sleeved on the outer end of the protrusion 9. The protruding ring 11 is inserted into the limiting groove 12 by squeezing the sealing ring 2 10. More specifically, when the sealing ring 2 10 squeezes itself to sleeve the sleeve groove on the outer end of the protrusion 9, the protruding ring 11 is simultaneously inserted into the limiting groove 12, fixing the sealing ring 2 10 and facilitating the disassembly and assembly of the sealing ring 2 10.

[0025] like Figure 1 , Figure 2 As shown, in some embodiments, a tie rod is provided on the outside of the prestressed steel cylinder concrete pipe. The tie rod includes a limiting ring 4 fixed on the outer wall of the left and right ends of the concrete outer ring 2. The limiting ring 4 and the concrete outer ring 2 are integrally formed. A connecting ring 5 is sleeved on the outer end of the concrete outer ring 2. A plurality of round holes 6 are evenly opened on the side wall of the connecting ring 5. Tie bolts 7 are installed in the round holes 6 on the two connecting rings 5. More specifically, after the two prestressed steel cylinder concrete pipes are connected, one end of the tie bolt 7 is passed through the round holes 6 on the two connecting rings 5 ​​in sequence and then the nut is tightened to fix the two prestressed steel cylinder concrete pipes together.

[0026] In use, when connecting two prestressed steel cylinder concrete pipes, sealing ring 18 is inserted into the inner end of the connecting block 14, and the outer end of the connecting block 14 is inserted into the connecting groove. At the same time, sealing ring 210 is inserted into the sealing groove 13 to provide double sealing at the connection of the two prestressed steel cylinder concrete pipes. After the two prestressed steel cylinder concrete pipes are connected, one end of the tie bolt 7 is passed through the round hole 6 on the two connecting rings 5 ​​in sequence and the nut is tightened to fix the two prestressed steel cylinder concrete pipes together.

[0027] 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 double-sealed prestressed steel cylinder concrete pipe, comprising a prestressed steel cylinder concrete pipe body, characterized in that, The prestressed steel cylinder concrete pipe body includes a steel cylinder layer (1), an inner concrete ring (3) is provided on the inner side of the steel cylinder layer (1), an outer concrete ring (2) is provided on the outer side of the steel cylinder layer (1), a protrusion (9) is fixedly installed at one end of the steel cylinder layer (1), and a connecting block (14) is fixedly installed at the other end of the steel cylinder layer (1). The protrusion (9) and the connecting block (14) are both located on the outer side of the inner concrete ring (3) and the outer concrete ring (2). A sealing ring 1 (8) is fixedly installed at one end of the concrete outer ring (2), and a sealing ring 2 (10) is detachably sleeved on the outer end of the protrusion (9). A sealing groove (13) is opened at one end of the concrete inner ring (3). When the two prestressed steel cylinder concrete pipes are connected, the sealing ring 1 (8) is inserted into the inner end of the connecting block (14), and the sealing ring 2 (10) is inserted into the sealing groove (13).

2. The prestressed steel cylinder concrete pipe with a double-sealed structure according to claim 1, characterized in that: A connecting groove is provided on the upper side of the concrete outer ring (2) away from the connecting block (14). When the sealing ring (8) is inserted into the inner end of the connecting block (14), the outer end of the connecting block (14) is inserted into the connecting groove.

3. The prestressed steel cylinder concrete pipe with a double-sealed structure according to claim 1, characterized in that: The sealing groove (13) is opened on the side wall of the inner concrete ring (3) away from the protrusion (9).

4. The prestressed steel cylinder concrete pipe with a double-sealed structure according to claim 1, characterized in that: One end of the sealing ring 2 (10) is provided with a sleeve groove, and the inner wall of the sleeve groove is provided with a limiting groove (12). The protrusion (9) is annular, and a protruding ring (11) is fixedly installed on the outer end of the protrusion (9). The sleeve groove is sleeved on the outer end of the protrusion (9), and the protruding ring (11) is inserted into the limiting groove (12) by squeezing the sealing ring 2 (10).

5. A prestressed steel cylinder concrete pipe with a double-sealed structure according to claim 1, characterized in that: The prestressed steel cylinder concrete pipe is provided with a tie rod on the outside. The tie rod includes a limiting ring (4) fixed on the outer wall of the left and right ends of the concrete outer ring (2). The limiting ring (4) and the concrete outer ring (2) are integrally formed.

6. A prestressed steel cylinder concrete pipe with a double-sealed structure according to claim 5, characterized in that: The outer end of the concrete outer ring (2) is fitted with a connecting ring (5). Several round holes (6) are evenly opened on the side wall of the connecting ring (5). Tie bolts (7) are installed in the round holes (6) on the two connecting rings (5).

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