Bell and spigot connecting structure of prestressed concrete cylinder pipe
By installing the rotating guide assembly and sealing ring structure at both ends of the prestressed steel cylinder concrete pipe, the skew problem of the bearing plug when twisting is solved, the sealing performance is improved, and the stable connection and efficient sealing of the prestressed steel cylinder concrete pipe is ensured.
Patent Information
- Application Number
- CN202422422431.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-10-08
AI Technical Summary
When existing prestressed steel cylinder concrete pipes are installed, the bearing plug is prone to skew during the screwing process, resulting in thread wear and poor sealing performance.
The rotating guide assembly is installed at both ends of the prestressed steel cylinder concrete pipe, including bearing rings, guide insertion rings, guide plug holes and guide rods. Through the coordination between the guide rod and the guide plug, the rotation direction of the bearing plug is limited, skewed, and the sealing area is increased through the sealing ring grooves and sealing ring gaskets.
It effectively avoids the skew of the bearing plug when twisting, reduces thread wear, and improves the sealing performance after butt installation.
Smart Images
Figure CN223035897U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of the connection structure of prestressed concrete cylinder pipes, in particular to a socket connection structure of prestressed concrete cylinder pipes. Background Art
[0002] The prestressed concrete cylinder pipe (hereinafter referred to as: PCCP) is a composite pipe. A steel plate and a socket joint steel ring are welded into a cylinder body. Then, concrete is poured inside and outside the cylinder body to form a pipe core. After curing, circumferential prestressed steel wires are wound on the outer surface of the pipe core to enable the concrete in the pipe wall to establish circumferential prestress. Finally, a cement mortar protective layer is sprayed on the sprayed pipe core. This kind of pipe is convenient to install, has good interface sealing performance, strong anti-settlement ability, high pipe body strength, good rigidity, and also has high anti-permeability performance and high corrosion resistance ability. It combines the advantages of steel pipes and prestressed concrete pipes, and the cost is relatively lower than that of ductile iron pipes.
[0003] When the existing prestressed concrete cylinder pipes are butt-jointed and installed, they are mainly connected by a socket head with an external thread reserved at one end and a socket slot with an internal thread reserved at the other end. Although the socket head and the socket slot can be used to realize the butt-jointed installation between two adjacent prestressed concrete cylinder pipes, when screwing the socket head during the butt-jointed installation process, it is necessary to rotate an entire prestressed concrete cylinder pipe. Since the prestressed concrete cylinder pipes are generally heavy, they are prone to being affected by their own weight during the screwing process, resulting in skewing of the socket head during screwing. This will not only cause wear of the threads between the socket head and the socket slot, but also lead to poor sealing performance between two adjacent prestressed concrete cylinder pipes after butt-jointed installation. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] The technical problem to be solved by the utility model is to provide a socket connection structure of prestressed concrete cylinder pipes that can guide the socket head during the butt-jointed installation of prestressed concrete cylinder pipes, avoid skewing between the socket head and the corresponding socket slot during screwing, and can significantly improve the sealing performance between two adjacent prestressed concrete cylinder pipes after butt-jointed installation according to the current situation of the prior art.
[0006] (2) Technical Solutions
[0007] The utility model is achieved through the following technical scheme: the utility model proposes a prestressed steel cylinder concrete pipe socket connection structure, including a prestressed steel cylinder concrete pipe body, a socket plug is reserved at one end of the prestressed steel cylinder concrete pipe body, an external thread is arranged on the outer wall of the socket plug, a socket slot matching the socket plug is reserved at the other end of the prestressed steel cylinder concrete pipe body, an internal thread is arranged correspondingly in the socket slot, and a rotation guide assembly is also commonly installed at both ends of the prestressed steel cylinder concrete pipe body, the rotation guide assembly includes a bearing ring installed on the outside of the socket plug, a guide plug ring sleeved on the outside of the bearing ring, a guide plug hole opened on one side wall of the guide plug ring, and a guide rod arranged on the prestressed steel cylinder concrete pipe body and located on the outside of the socket slot, a sealing ring groove is also opened on the end of the socket plug facing away from the prestressed steel cylinder concrete pipe body, and a sealing ring gasket is also installed in the socket slot facing the sealing ring groove.
[0008] Furthermore, the socket is made of a steel ring, and the socket is welded to the cylinder body provided on the prestressed steel cylinder concrete pipe body.
[0009] By adopting the above technical solution, the structural strength of the socket can be ensured, and at the same time, the socket can be reliably installed and fixed in the prestressed concrete cylinder pipe body.
[0010] Furthermore, the external thread is formed on the socket, and the size of the internal thread matches the size of the external thread.
[0011] By adopting the above technical solution, after the internal thread and the external thread are screwed together, not only can the butt-jointed installation between two adjacent prestressed steel cylinder concrete pipe bodies be achieved, but also the sealing performance of the butt joint between the two adjacent prestressed steel cylinder concrete pipe bodies can be achieved under the action of thread sealing.
[0012] Furthermore, the sealing ring groove is formed on the socket, and the sealing ring gasket is bonded to the prestressed steel cylinder concrete pipe body.
[0013] By adopting the above technical solution, the sealing ring groove and the sealing ring gasket can effectively increase the contact area of two adjacent prestressed steel cylinder concrete pipe bodies after docking, thereby further improving the sealing performance between the two adjacent prestressed steel cylinder concrete pipe bodies.
[0014] Furthermore, the sealing ring gasket is made of rubber, and the size of the sealing ring gasket matches the size of the sealing ring groove.
[0015] By adopting the above technical solution, it can be ensured that the sealing ring gasket is stably inserted into the sealing ring groove.
[0016] Further, the guide rod is rotationally connected to the prestressed concrete cylinder pipe body, and the size of the guide rod matches the size of the guide insertion hole.
[0017] By adopting the above technical solution, the length of the guide rod is greater than the distance between the socket and the guide insertion ring. Therefore, during the butt joint process of two adjacent prestressed concrete cylinder pipe bodies, when the internal thread contacts the external thread, the end of the guide rod just contacts the corresponding guide insertion hole at this time. As the internal thread and the external thread are screwed together, the guide rod will slide into the guide insertion hole, and at the same time, the guide insertion ring will rotate around the bearing ring, so as to limit the screwing direction of the internal thread and the external thread without affecting the normal screwing of the internal thread and the external thread, and ensure that there is no skew wear phenomenon when the internal thread and the external thread are screwed together.
[0018] Further, the bearing ring is composed of an outer ring and an inner ring. The inner ring of the bearing ring is inserted into the socket, and the outer ring of the bearing ring is inserted into the guide insertion ring.
[0019] By adopting the above technical solution, the inner ring and the outer ring on the bearing ring rotate relative to each other. Therefore, the convenient rotation between the guide insertion ring and the socket can be realized under the action of the bearing ring.
[0020] Further, the guide insertion holes are annularly distributed along the guide insertion ring, and the guide insertion holes penetrate through the guide insertion ring.
[0021] By adopting the above technical solution, the reliable cooperation between the guide rod and the guide insertion ring can be ensured.
[0022] (III) Beneficial effects
[0023] The utility model has the following beneficial effects compared with the prior art:
[0024] In order to solve the problem that the existing prestressed concrete cylinder pipes are mainly connected by the male socket with external threads reserved at one end and the female socket with internal threads reserved at the other end. Although the male socket and the female socket can realize the butt joint installation between two adjacent prestressed concrete cylinder pipes, when screwing the male socket during the butt joint installation process, the whole prestressed concrete cylinder pipe needs to be rotated. Since the prestressed concrete cylinder pipe is generally heavy, it is easy to be affected by its own weight during the screwing process, resulting in skewing of the male socket during screwing. This will not only cause wear of the threads between the male socket and the female socket, but also lead to poor sealing performance between two adjacent prestressed concrete cylinder pipes after butt joint installation. The utility model installs a rotation guiding component at both ends of the prestressed concrete cylinder pipe body. During butt joint installation, the guiding rod on one prestressed concrete cylinder pipe body can be inserted into the guiding insertion hole on the other prestressed concrete cylinder pipe body first, so that during the rotation of the prestressed concrete cylinder pipe body, with the guiding effect of the guiding rod and the guiding insertion hole, relative skewing between the male socket and the corresponding female socket during screwing can be avoided, wear at the internal and external threads can be avoided, and the sealing performance between two adjacent prestressed concrete cylinder pipe bodies after butt joint installation can be ensured. At the same time, with the combined design of the sealing ring groove and the sealing sliding pad, the sealing area between two adjacent prestressed concrete cylinder pipe bodies after butt joint is increased, so that the sealing performance between two adjacent prestressed concrete cylinder pipe bodies after butt joint installation is further improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 FIG. is a schematic structural view of a socket and spigot connection structure of a prestressed concrete cylinder pipe according to the utility model;
[0026] Figure 2 FIG. is a rear view of a socket and spigot connection structure of a prestressed concrete cylinder pipe according to the utility model;
[0027] Figure 3 FIG. is a right view of a guiding insertion ring in a socket and spigot connection structure of a prestressed concrete cylinder pipe according to the utility model.
[0028] The reference numerals are explained as follows:
[0029] 1, prestressed concrete cylinder pipe body; 2, rotation guiding component; 201, guiding rod; 202, guiding insertion hole; 203, guiding insertion ring; 204, bearing ring; 3, external thread; 4, sealing ring groove; 5, male socket; 6, female socket; 7, sealing ring pad; 8, internal thread. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0031] like Figures 1 - 3 As shown, a prestressed steel cylinder concrete pipe socket connection structure in this embodiment includes a prestressed steel cylinder concrete pipe body 1, a socket plug 5 is reserved at one end of the prestressed steel cylinder concrete pipe body 1, and an external thread 3 is arranged on the outer wall of the socket plug 5, and a socket slot 6 matching the socket plug 5 is reserved at the other end of the prestressed steel cylinder concrete pipe body 1, and an internal thread 8 is correspondingly arranged in the socket slot 6. Both ends of the prestressed steel cylinder concrete pipe body 1 are also jointly installed with a rotation guide component 2, which includes a bearing ring 204 installed on the outside of the socket plug 5, a guide plug ring 203 sleeved on the outside of the bearing ring 204, a guide plug hole 202 opened on a side wall of the guide plug ring 203, and a guide rod 201 arranged on the prestressed steel cylinder concrete pipe body 1 and located on the outside of the socket slot 6. The length of the guide rod 201 is greater than the distance between the socket plug 5 and the guide plug ring 203, so that when two adjacent prestressed steel cylinder concrete pipe bodies 1 are butt-jointed During the process, when the internal thread 8 contacts the external thread 3, the end of the guide rod 201 just contacts the corresponding guide socket 202. As the internal thread 8 and the external thread 3 are screwed together, the guide rod 201 will slide into the guide socket 202, and the guide insert ring 203 will rotate around the bearing ring 204, thereby limiting the screwing direction of the internal thread 8 and the external thread 3 without affecting the normal screwing of the internal thread 8 and the external thread 3, ensuring that there is no skewness and wear when the internal thread 8 and the external thread 3 are screwed together. A sealing ring groove 4 is also provided at the end of the socket 5 facing away from the prestressed steel cylinder concrete pipe body 1, and a sealing ring gasket 7 is also installed in the socket slot 6 facing the sealing ring groove 4. After the sealing ring groove 4 and the sealing ring gasket 7 are inserted, the contact area of the two adjacent prestressed steel cylinder concrete pipe bodies 1 after docking can be effectively increased, thereby further improving the sealing performance between the two adjacent prestressed steel cylinder concrete pipe bodies 1.
[0032] like Figures 1 - 3 As shown, in this embodiment, the socket plug 5 is made of a steel ring, and the socket plug 5 is welded to the cylinder body of the prestressed steel cylinder concrete pipe body 1, which can ensure the structural strength of the socket plug 5 and realize the reliable installation and fixation of the socket plug 5 on the prestressed steel cylinder concrete pipe body 1. The external thread 3 is formed on the socket plug 5, and the size of the internal thread 8 matches the size of the external thread 3. After the internal thread 8 is screwed with the external thread 3, not only can the docking installation between the two adjacent prestressed steel cylinder concrete pipe bodies 1 be realized, but also the sealing performance of the docking part of the two adjacent prestressed steel cylinder concrete pipe bodies 1 can be realized under the action of thread sealing.
[0033] like Figures 1 - 3 As shown, in this embodiment, the sealing ring groove 4 is formed on the socket 5, the sealing ring gasket 7 is bonded to the prestressed steel cylinder concrete pipe body 1, the sealing ring gasket 7 is made of rubber, and the size of the sealing ring gasket 7 matches the size of the sealing ring groove 4, which can ensure that the sealing ring gasket 7 is stably inserted into the sealing ring groove 4.
[0034] like Figures 1 - 3 As shown, in this embodiment, the guide rod 201 is screwed to the prestressed steel cylinder concrete pipe body 1, the size of the guide rod 201 matches the size of the guide socket 202, the bearing ring 204 is composed of an outer ring and an inner ring, the inner ring of the bearing ring 204 is plugged into the socket 5, and the outer ring of the bearing ring 204 is plugged into the guide plug ring 203. The inner ring and the outer ring on the bearing ring 204 are relatively rotatable, so that the guide plug ring 203 and the socket 5 can be easily rotated under the action of the bearing ring 204. The guide socket 202 is distributed in a ring shape along the guide plug ring 203, and the guide socket 202 passes through the guide plug ring 203, which can ensure the reliable fit of the guide rod 201 and the guide plug ring 203.
[0035] The specific implementation process of this embodiment is as follows: when two connected prestressed steel cylinder concrete pipe bodies 1 are butt-jointed, the guide rod 201 on one prestressed steel cylinder concrete pipe body 1 is first inserted into the guide socket 202 on the other prestressed steel cylinder concrete pipe body 1, so that when the prestressed steel cylinder concrete pipe body 1 is rotated, the guiding effect of the guide rod 201 and the guide socket 202 can be used to avoid relative skewness between the socket head 5 and the corresponding socket sleeve when screwing, and to avoid wear on the internal thread 8 and the external thread 3, so that the sealing performance of the two adjacent prestressed steel cylinder concrete pipe bodies 1 after butt-jointed installation is guaranteed. At the same time, during the screwing and assembling process of the two prestressed steel cylinder concrete pipe bodies 1, under the action of the sealing ring groove 4 and the sealing sliding pad, the sealing area of the two adjacent prestressed steel cylinder concrete pipe bodies 1 after butt-jointed is increased, thereby further improving the sealing performance of the two adjacent prestressed steel cylinder concrete pipe bodies 1 after butt-jointed installation.
[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A prestressed steel cylinder concrete pipe socket connection structure, characterized in that: The invention comprises a prestressed steel cylinder concrete pipe body (1), wherein a socket plug (5) is reserved at one end of the prestressed steel cylinder concrete pipe body (1), an external thread (3) is arranged on the outer wall of the socket plug (5), and a socket slot (6) matching with the socket plug (5) is reserved at the other end of the prestressed steel cylinder concrete pipe body (1), an internal thread (8) is arranged in the socket slot (6), and a rotation guide assembly (2) is also installed at both ends of the prestressed steel cylinder concrete pipe body (1), and the rotation guide assembly (2) comprises a socket installed on the socket plug. (5) an outer bearing ring (204), a guide insert ring (203) sleeved on the outer side of the bearing ring (204), a guide insert hole (202) provided on a side wall of the guide insert ring (203), and a guide rod (201) arranged on the prestressed concrete cylinder tube body (1) and located outside the socket (6); the socket (5) is also provided with a sealing ring groove (4) at one end facing away from the prestressed concrete cylinder tube body (1); and a sealing ring gasket (7) is also installed in the socket (6) opposite to the sealing ring groove (4).
2. A prestressed steel cylinder concrete pipe socket connection structure according to claim 1, characterized in that: The socket (5) is made of a steel ring, and the socket (5) is welded to the cylinder body provided on the prestressed steel cylinder concrete pipe body (1).
3. A prestressed steel cylinder concrete pipe socket connection structure according to claim 2, characterized in that: The external thread (3) is formed on the socket (5), and the size of the internal thread (8) matches the size of the external thread (3).
4. The prestressed steel cylinder concrete pipe socket connection structure according to claim 1, characterized in that: The sealing ring groove (4) is formed on the socket (5), and the sealing ring gasket (7) is bonded to the prestressed steel cylinder concrete pipe body (1).
5. A prestressed steel cylinder concrete pipe socket connection structure according to claim 4, characterized in that: The sealing ring gasket (7) is made of rubber material, and the size of the sealing ring gasket (7) matches the size of the sealing ring groove (4).
6. The prestressed steel cylinder concrete pipe socket connection structure according to claim 1, characterized in that: The guide rod (201) is screwed to the prestressed steel cylinder concrete pipe body (1), and the size of the guide rod (201) matches the size of the guide insertion hole (202).
7. The prestressed steel cylinder concrete pipe socket connection structure according to claim 1, characterized in that: The bearing ring (204) is composed of an outer ring and an inner ring. The inner ring of the bearing ring (204) is plugged into the socket (5), and the outer ring of the bearing ring (204) is plugged into the guide insert ring (203).
8. The prestressed steel cylinder concrete pipe socket connection structure according to claim 1, characterized in that: The guide plug holes (202) are distributed in a ring shape along the guide plug ring (203), and the guide plug holes (202) penetrate the guide plug ring (203).