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CN-224214935-U - Pipe-jacking pipeline connecting structure

CN224214935UCN 224214935 UCN224214935 UCN 224214935UCN-224214935-U

Abstract

The application relates to the technical field of pipe connection, and provides a pipe-jacking pipe connection structure, which comprises a pipe body, wherein two ends of the pipe body are respectively and coaxially connected with a metal annular bulge and a metal annular groove, a plurality of flexible sealing rings are sleeved on the periphery of the metal annular bulge, and one end, close to the pipe body, of the pipe body is in plug-in fit with the metal annular groove through the metal annular bulge. The application has the effect of improving the structural strength of the pipeline joint.

Inventors

  • HE MINGLIANG
  • LI YI
  • WANG DAOQIN
  • CHENG LIANGQIN
  • JING YINGHUA
  • CHEN BIAO
  • Ba Fan

Assignees

  • 中交第三公路工程局有限公司
  • 中交三公局第一工程有限公司

Dates

Publication Date
20260508
Application Date
20250627

Claims (8)

  1. 1. A pipe-jacking pipeline connecting structure is characterized by comprising a pipeline body (1), wherein two ends of the pipeline body (1) are respectively and coaxially connected with a metal annular bulge (2) and a metal annular groove (3), a plurality of flexible sealing rings (20) are sleeved on the periphery of the metal annular bulge (2), and one end, close to the pipeline body (1), of each pipeline body is in plug-in fit with the metal annular groove (3) through the metal annular bulge (2).
  2. 2. The pipe-jacking pipeline connecting structure according to claim 1 is characterized in that a first connecting ring (21) is coaxially connected to one end, close to the pipeline body (1), of the metal annular protrusion (2), a second connecting ring (31) is coaxially connected to one end, close to the pipeline body (1), of the metal annular groove (3), and the first connecting ring (21) and the second connecting ring (31) are welded and fixed with a reinforcement cage structure (10) inside the pipeline body (1).
  3. 3. The pipe-in-pipe connecting structure according to claim 2, wherein a first connecting pipe (22) is coaxially connected to one end of the first connecting ring (21) close to the pipe body (1), and a second connecting pipe (32) is coaxially connected to one end of the second connecting ring (31) close to the pipe body (1); The first connecting pipe (22) and the second connecting pipe (32) are respectively sleeved at the two end parts of the pipeline body (1).
  4. 4. The pipe-jacking pipeline connecting structure according to claim 1, wherein the outer periphery of the metal annular bulge (2) is provided with an annular limiting groove (23) corresponding to the flexible sealing ring (20), and the inner periphery of the flexible sealing ring (20) is embedded in the corresponding annular limiting groove (23).
  5. 5. The pipe-jacking pipeline connecting structure according to claim 1 is characterized in that annular connecting steel belts (11) are coaxially buried in inner cavities at the adjacent ends of the pipeline bodies (1), and the annular connecting steel belts (11) at the adjacent ends of the pipeline bodies (1) are connected through a plurality of connecting steel bars (4).
  6. 6. The pipe-in-pipe connection structure of claim 5, wherein a plurality of annular ribs (42) are further arranged adjacent to one end of the pipe body (1), and the peripheries of the annular ribs (42) are fixedly connected with a plurality of connecting steel bars (4).
  7. 7. The pipe-jacking pipeline connecting structure according to claim 6, wherein the annular connecting steel belt (11) is welded and fixed with the steel reinforcement cage structure (10) inside the pipeline body (1).
  8. 8. A pipe-jacking pipeline connecting structure according to claim 3, wherein a grouting pipe (5) is arranged outside Zhou Mai at one end of the pipeline body (1) close to the metal annular bulge (2), a grouting opening is formed in the first connecting pipe (22) corresponding to the grouting pipe (5), and the grouting pipe (5) is communicated with the grouting pipe (5).

Description

Pipe-jacking pipeline connecting structure Technical Field The application relates to the technical field of pipeline connection, in particular to a pipe-jacking pipeline connection structure. Background The pipe jacking construction is used as a non-excavation underground pipeline construction technology, and is widely applied to underground pipeline laying construction of dense urban building roads. In the current pipe jacking construction process, the connection of the pipelines mainly depends on the mutual plug-in fit of the annular bulge (bell mouth) at the end part of the pipeline and the annular groove (spigot) of the adjacent pipeline. To above-mentioned related art, pipeline tip annular bulge and annular groove are usually with pipeline integrated into one piece, and self is concrete structure, and bulk strength is limited relatively, and follow-up in-process is advanced in the soil body, very easily leads to the edge to burst apart, break because of atress inequality or external load effect, causes adjacent pipeline junction to damage even dislocation, leads to pipeline junction to leak, consequently, has the improvement room. Disclosure of utility model In order to improve the structural strength of a pipeline connection part of pipe jacking construction, the application provides a pipe jacking pipeline connection structure. The application provides a pipe-jacking pipeline connecting structure, which adopts the following technical scheme: A pipe-jacking pipe connecting structure comprises a pipe body, wherein two ends of the pipe body are respectively and coaxially connected with a metal annular bulge and a metal annular groove, a plurality of flexible sealing rings are sleeved on the periphery of the metal annular bulge, and one end, close to the pipe body, of the pipe body is in plug-in fit with the metal annular groove through the metal annular bulge. Through the technical scheme, when the pipe jacking construction is performed, the adjacent pipeline bodies are spliced and matched with the metal annular grooves through the metal annular protrusions at the adjacent ends of the adjacent pipeline bodies, so that the connection and the matching of the adjacent pipeline bodies are realized, compared with a traditional concrete connecting structure, the integral strength of the connecting position of the adjacent pipeline bodies is effectively improved, the pipe jacking construction process is reduced, the cracking and dislocation situation when the connecting position of the adjacent pipeline occurs is reduced, the sealing performance of the connecting position of the adjacent pipeline bodies is improved through the arrangement of the metal annular protrusion peripheral flexible sealing ring, and the risk of cracking and leakage of a pipeline interface is further reduced. The metal annular bulge is connected with a first connecting ring coaxially at one end, close to the pipeline body, of the metal annular bulge, a second connecting ring is connected coaxially at one end, close to the pipeline body, of the metal annular groove, and the first connecting ring and the second connecting ring are welded and fixed with a reinforcement cage structure inside the pipeline body. Through adopting above-mentioned technical scheme, be favorable to reinforcing annular protruding of metal and the annular recess of metal and the connection steadiness of pipeline body for adjacent pipeline body junction is in the jacking in-process can resist external load better, reduces annular protruding of metal and the annular recess atress of metal and takes place the condition of displacement damage. Preferably, one end of the first connecting ring, which is close to the pipeline body, is coaxially connected with a first connecting pipe; The first connecting pipe and the second connecting pipe are respectively sleeved at the two end parts of the pipeline body. Through adopting above-mentioned technical scheme, on the one hand be favorable to further improving the metal annular bulge and the metal annular groove and the connection wholeness of pipeline body, on the other hand, be favorable to improving the leakproofness of metal annular bulge and metal annular groove both and pipeline body junction. Preferably, the outer periphery of the metal annular bulge is provided with an annular limiting groove corresponding to the flexible sealing ring, and the inner periphery of the flexible sealing ring is embedded in the corresponding annular limiting groove. Through adopting above-mentioned technical scheme, utilize annular spacing groove to carry out spacingly to flexible sealing washer, be favorable to reducing flexible sealing washer and take place the displacement or drop at pipeline body connection and jacking in-process, be favorable to guaranteeing the sealing performance of pipeline junction better, reduce pipeline body junction risk of leaking. Preferably, annular connecting steel belts are coaxially buried in the inner ca