Prefabricated pipe gallery for water conservancy project

By setting up sealing components and other components on the flange of prefabricated pipe gallery for water conservancy projects, and using the coordination of pivots and fan plates, the closure of the pipeline and the replacement of the sealing ring is achieved without closing the valve, which solves the problem of the existing technology. The cumbersome operation issues improve maintenance efficiency and enhance sealing effect.

CN118729065BActive Publication Date: 2025-02-25SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD +1
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Patent Information

Application Number
CN202411233016.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-02-25
Estimated Expiration
2044-09-04

AI Technical Summary

Technical Problem

When the flange sealing ring on the inner side wall of the existing pipe corridor needs to be replaced after aging, it is necessary to search for valves along the pipe to close the flange before disassembling and replacing the sealing ring, which is cumbersome.

Method used

A prefabricated pipe gallery for water conservancy projects was designed. By setting sealing components, rotating components, transmission components and limiting components on the flange, and using the coordination of the pallets and the fan plates, the closure of the pipe and the replacement of the sealing rings are achieved. , no need to close the valve.

Benefits of technology

It realizes rapid closing of the pipe and replacing the sealing ring without closing the valve, simplifying the operation process, improving maintenance efficiency, and enhancing the sealing effect of the sealing ring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of underground pipelines, and in particular to a prefabricated pipe gallery for water conservancy projects, comprising a supporting component, including two pipeline bodies, a first flange arranged on the pipeline body at the left end, a second flange arranged on the pipeline body at the right end, an annular groove arranged on the first flange and the second flange, and a sealing ring arranged on the annular groove; a closing component, including a plugging component arranged on the first flange and the second flange, a rotating component arranged on the first flange and the second flange, a transmission component arranged on the rotating component, and a limiting component arranged on the rotating component; a reinforcing component, including a pushing component arranged on the rotating component, and an elastic component arranged on the pushing component. The device described in the present invention can directly move a block on the flange to close the pipeline without finding a valve to close, and is easy to use.
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Description

Technical Field

[0001] The invention relates to the technical field of underground pipelines, in particular to a prefabricated pipe gallery for water conservancy projects. Background Art

[0002] In water conservancy projects, underground pipelines become an indispensable part when transporting liquids, gases or loose solids. When they are built, a pipe gallery is generally built for better protection, and then the pipelines are allowed to pass through the gallery. At the same time, flanges are fixed on the inner wall of the gallery so that the pipelines can be fixed through the flanges, and finally the pipelines are suspended and supported.

[0003] During use, the flange on the inner wall of the existing pipe gallery will inevitably leak after the sealing ring ages. When performing maintenance, since there is fluid in the pipeline, it is necessary to find the valve along the pipeline, close the valve first, then disassemble the flanges, and finally replace the sealing ring. This process is cumbersome. How to quickly close the pipeline so as to quickly replace the sealing ring becomes a problem that needs to be solved. Summary of the invention

[0004] In view of the problem in the above-mentioned prior art that when the flange sealing ring on the inner wall of the pipe gallery needs to be replaced after aging, it is necessary to find the valve along the pipeline and close the valve first before disassembling the flanges and replacing the sealing ring, which makes the operation process more cumbersome, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a prefabricated pipe gallery for water conservancy projects.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: including a supporting component, including two pipe bodies, a first flange arranged on the left end of the pipe body, a second flange arranged on the right end of the pipe body, annular grooves arranged on the first flange and the second flange, a sealing ring arranged on the annular groove, and a pipe gallery body arranged on the outside of the first flange and the second flange; a closing component, including a blocking component arranged on the first flange and the second flange, a rotating component arranged on the first flange and the second flange, a transmission component arranged on the rotating component, and a limiting component arranged on the rotating component; a reinforcing component, including a pushing component arranged on the rotating component, an elastic component arranged on the pushing component, an extrusion component arranged on the elastic component, and a dispersion component arranged on the extrusion component.

[0007] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the blocking assembly includes six installation grooves arranged in the first flange and the second flange, and the six installation grooves are all sealed and slidably connected with fan-shaped plates, and the six fan-shaped plates are spliced ​​into a circular disc with a diameter larger than the inner diameter of the pipeline body.

[0008] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the rotating assembly includes an annular cavity arranged on the first flange and the second flange, and a circular ring is rotatably connected in the annular cavity.

[0009] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the transmission assembly includes a strip-shaped opening arranged on the annular cavity and connected to the mounting groove, a cylinder fixed to the fan-shaped plate is slidably connected in the strip-shaped opening, and a first arc groove matching the cylinder is provided on the circular ring.

[0010] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the limiting assembly includes an arc-shaped opening arranged on the first flange and the second flange, a shift block fixed to a circular ring is slidably connected in the arc-shaped opening, a plurality of extension blocks are fixedly connected to the first flange and the second flange, the extension blocks are provided with threaded holes, bolts are threadedly connected in the threaded holes, and the side walls of the bolts are abutted against the side walls of the shift blocks.

[0011] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, a space with a width equal to that of the shifting block is left between the inner wall at the front end of the arc-shaped opening and the inner wall at the rear end of the arc-shaped opening and the bolts.

[0012] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the pushing component includes six second arc grooves arranged on the circular ring, and the inner walls of the six second arc grooves are each provided with a third arc groove. The distance between the third arc groove and the sealing ring increases successively in the counterclockwise direction along the circular ring, and a guide column is slidably connected in the third arc groove.

[0013] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the elastic component includes a support column fixedly connected to a guide column, the outer end of the support column is provided with a mounting tube with one end open, a slider is slidably connected inside the mounting tube, the slider is elastically connected to the inner wall of the mounting tube through a spring, and the support column is fixedly connected to the slider.

[0014] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the extrusion assembly includes an arc-shaped pressing block fixedly connected to the sealing ring, the arc-shaped pressing block is fixedly connected to a mounting column, and the mounting column is fixedly connected to the mounting tube.

[0015] As a preferred solution of the prefabricated pipe gallery for water conservancy projects of the present invention, the dispersion component includes two first arc-shaped bars fixedly connected to the mounting tube, and the two first arc-shaped bars are fixedly connected to the second arc-shaped bars fixed to the sealing ring, and both ends of the arc-shaped pressure block are in contact with the side walls of the second arc-shaped bar.

[0016] The beneficial effects of the prefabricated pipe gallery for water conservancy projects of the present invention are as follows: by arranging a closing component, when the flange is disassembled, the pipes at both ends can be closed by simply turning the dial block, without the need to specifically find a valve to shut off the water, and after the sealing ring is closed, the pipe can be unblocked by turning the dial block again, and when the pipe is unblocked, the sealing ring can be squeezed so that the edge of the sealing ring abuts more tightly, further ensuring the sealing effect of the sealing ring, thereby solving the problem that when the flange sealing ring on the inner side wall of the pipe gallery needs to be replaced after aging, it is necessary to find the valve along the pipe and close the valve before disassembling the flange and replacing the sealing ring, which makes the operation process more cumbersome, and the effect of directly turning the dial block on the flange to close the pipe is achieved, without the need to find a valve to close, and enhancing the sealing performance of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is an overall schematic diagram of the prefabricated pipe gallery for water conservancy projects.

[0019] Figure 2 This is a schematic diagram of the external structure of the first flange of a prefabricated pipe gallery for water conservancy projects.

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the transmission components of the prefabricated pipe gallery for water conservancy projects.

[0021] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of .

[0022] Figure 5 This is a schematic diagram of the left side wall structure of the circular ring of the prefabricated pipe gallery for water conservancy projects.

[0023] Figure 6 This is a schematic diagram of the right side wall structure of the circular ring of the prefabricated pipe gallery for water conservancy projects.

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the extruded components of the prefabricated pipe gallery for water conservancy projects.

[0025] Figure 8 Schematic diagram of the external structure of the dispersed components of the prefabricated pipe gallery for water conservancy projects.

[0026] In the figure: 100, supporting component; 101, pipeline body; 102, first flange; 103, second flange; 104, annular groove; 105, sealing ring; 106, pipe gallery body; 200, closing component; 201, blocking component; 201a, mounting groove; 201b, sector plate; 202, rotating component; 202a, annular cavity; 202b, circular ring; 203, transmission component; 203a, strip mouth; 203b, cylinder; 203c, first arc groove; 204, limit component; 204a, arc mouth; 204b, circular ring; 204c, first arc groove; 204d, limit component; 204e, arc mouth; 204f ... 04b, shift block; 204c, extension block; 204d, bolt; 300, reinforcement component; 301, pushing assembly; 301a, second arc groove; 301b, third arc groove; 301c, guide column; 302, elastic assembly; 302a, support column; 302b, mounting cylinder; 302c, slider; 302d, spring; 303, extrusion assembly; 303a, connecting cavity; 303b, arc pressure block; 303c, mounting column; 304, dispersion assembly; 304a, first arc strip; 304b, second arc strip. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1, reference Figure 1 to Figure 7, which is the first embodiment of the present invention, and provides a prefabricated pipe gallery for water conservancy projects, which can close the pipe body 101 without closing the main gate, and includes a support component 100, including two pipe bodies 101, a first flange 102 arranged on the left end pipe body 101, a second flange 103 arranged on the right end pipe body 101, an annular groove 104 arranged on the first flange 102 and the second flange 103, a sealing ring 105 arranged on the annular groove 104, and a pipe gallery body 106 arranged outside the first flange 102 and the second flange 103; The closing component 200 includes a blocking component 201 arranged on the first flange 102 and the second flange 103, a rotating component 202 arranged on the first flange 102 and the second flange 103, a transmission component 203 arranged on the rotating component 202, and a limiting component 204 arranged on the rotating component 202; the reinforcing component 300 includes a pushing component 301 arranged on the rotating component 202, an elastic component 302 arranged on the pushing component 301, an extrusion component 303 arranged on the elastic component 302, and a dispersion component 304 arranged on the extrusion component 303.

[0031] Specifically, the first flange 102 and the second flange 103 are fixedly connected to the pipe body 101. When the sealing rings 105 on the first flange 102 and the second flange 103 are squeezed against each other, the sealing between the first flange 102 and the second flange 103 is achieved. The pipe gallery body 106 here is installed underground to prevent the pipe body 101 from being directly squeezed and protect the pipe body 101. At the same time, a bearing frame is provided on the pipe gallery body 106 to support the first flange 102 and the second flange 103, so that the first flange 102 and the second flange 103 are suspended in the air, so that the pipe body 101 is suspended in the air for maintenance. The pipe body 101 here is a normal water supply pipe (not a large pipe in a large water conservancy project). When replacing the sealing ring 105, the pipe body 101 can be moved to dislocate the first flange 102 and the second flange 103 to replace the sealing ring 105. The above is the prior art and will not be repeated here.

[0032] Furthermore, the sealing component 201 includes six installation grooves 201a arranged in the first flange 102 and the second flange 103, and the six installation grooves 201a are sealed and slidably connected with fan-shaped plates 201b. The six fan-shaped plates 201b are spliced ​​into a circular disc with a diameter greater than the inner diameter of the pipe body 101; the rotating component 202 includes an annular cavity 202a arranged on the first flange 102 and the second flange 103, and a ring 202b is rotatably connected in the annular cavity 202a.

[0033] The six sector plates 201b are spliced ​​into a disc with a diameter larger than the inner diameter of the pipe body 101, so that the sector plate 201b is located in the installation groove 201a, avoiding a gap between the sector plate 201b and the inner wall of the pipe body 101 to affect the sealing effect.

[0034] Preferably, the transmission assembly 203 includes a strip-shaped opening 203a disposed on the annular cavity 202a and communicating with the mounting groove 201a, a cylinder 203b fixed to the sector plate 201b is slidably connected in the strip-shaped opening 203a, and a first arc-shaped groove 203c matched with the cylinder 203b is provided on the ring 202b; the limiting assembly 204 includes an arc-shaped opening 204a disposed on the first flange 102 and the second flange 103, a first arc-shaped groove 203c matched with the cylinder 203b is provided in the arc-shaped opening 204a, A shifting block 204b is connected to the circular ring 202b, and a plurality of extension blocks 204c are fixedly connected to the first flange 102 and the second flange 103. The extension blocks 204c are provided with threaded holes, and bolts 204d are threadedly connected in the threaded holes. The side walls of the bolts 204d are abutted against the side walls of the shifting block 204b. A space with a width equal to that of the shifting block 204b is left between the inner wall of the front end of the arc-shaped opening 204a and the inner wall of the rear end of the arc-shaped opening 204a and the bolts 204d.

[0035] It should be noted that the strip opening 203a is long enough to ensure that the six sector plates 201b can be assembled together, the spacing between the first arc groove 203c and the pipe body 101 gradually decreases counterclockwise along the ring 202b, and a space equal to the width of the shift block 204b is left between the inner wall of the front end of the arc opening 204a and the inner wall of the rear end of the arc opening 204a and the bolt 204d, so that no matter whether the shift block 204b is at the front end or the rear end, there is a bolt 204d to resist it, preventing the shift block 204b from self-movement.

[0036] During use, when the sealing ring 105 leaks and it is necessary to correct the leakage between the first flange 102 and the second flange 103, first remove the bolt 204d against the shift block 204b and the bolt 204d on the arc-shaped opening 204a, and then shift the shift block 204b on the first flange 102 and the second flange 103 forward. When the shift block 204b is shifted, the ring 202b in the first flange 102 rotates counterclockwise (observed from the right end of the first flange 102, the same below, here taking the ring 202b in the first flange 102 as an example, the same applies to the second flange 103). When the ring 202b rotates counterclockwise, the six first arc grooves 203c cooperate with the six cylinders 203b to drive the cylinder 203b to move downward, thereby the six sector plates 201b move downward. When the six sector plates 201b are against each other, a circular disk with a diameter greater than the inner diameter of the pipe body 101 is formed, so that the pipe body 101 is closed (the sector plate 201b here is equivalent to a sealing block, which can always maintain a sealed state with the mounting groove 201a when sliding, and no leakage problem occurs). At this time, the shift block 204b is at the front end of the arc-shaped opening 204a, and then the bolt 204d is removed to disassemble the first flange 102 and the second flange 103, and replace the sealing ring 105. There is damping between the shift block 204b and the arc-shaped opening 204a, and it will not slide by itself. Of course, in order to ensure the stability of the shift block 204b, a bolt 204d can be separately inserted into the threaded holes of the first flange 102 and the second flange 103 to limit the shift block 204b.

[0037] In summary, by setting the closing component 200, when replacing the sealing ring 105, it is only necessary to move the blocks 204b on the first flange 102 and the second flange 103 to close the pipeline body 101 without moving the valve, which is more convenient to use and saves maintenance time.

[0038] Example 2, reference Figure 3 to Figure 8, which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a reinforcement component 300 for a prefabricated pipe gallery for a water conservancy project, which solves the problem of how to reinforce the sealing ring 105 when the fan-shaped plate 201b is reset. It includes a pushing component 301, including six second arc grooves 301a arranged on the ring 202b, and the inner walls of the six second arc grooves 301a are all provided with third arc grooves 301b. The distance between the third arc groove 301b and the sealing ring 105 increases in turn in the counterclockwise direction of the ring 202b. A guide column 301 is slidably connected in the third arc groove 301b. 1c; the elastic component 302 includes a support column 302a fixedly connected to the guide column 301c, the outer end of the support column 302a is provided with a mounting tube 302b with one end open, a slider 302c is slidably connected in the mounting tube 302b, the slider 302c is elastically connected to the inner wall of the mounting tube 302b through a spring 302d, and the support column 302a is fixedly connected to the slider 302c; the extrusion component 303 includes an arc-shaped pressing block 303b fixedly connected to the sealing ring 105, the arc-shaped pressing block 303b is fixedly connected to the mounting column 303c, and the mounting column 303c is fixedly connected to the mounting tube 302b.

[0039] Specifically, the distance between the third arc groove 301b and the sealing ring 105 increases in the counterclockwise direction along the circular ring 202b, so that when the circular ring 202b rotates clockwise for resetting, it can drive the guide column 301c to move toward the sealing ring 105. The arc pressure block 303b here is located near the edge of the sealing ring 105, and if the sealing ring 105 is divided into six equal parts, the midpoint of the arc pressure block 303b coincides with the midpoint of each sealing ring 105. The setting of the slider 302c and the spring 302d allows the slider 302c and the support column 302a to have a movable space, thereby avoiding the phenomenon that the ring 202b cannot rotate due to the inability of the support column 302a to move.

[0040] During use, after the sealing ring 105 is replaced and fixed completely, first fix the bolt 204d at the upper end of the arc-shaped opening 204a, and then move the block 204b to make the ring 202b rotate clockwise to open the pipeline body 101. At the same time, when the ring 202b rotates clockwise, the third arc-shaped groove 301b cooperates with the guide column 301c to push the guide column 301c to move toward the sealing ring 105, so that the support column 302a moves toward the direction of the sealing ring 105, so that the slider 302c moves toward the direction of the sealing ring 105, and the spring 302d is compressed. When the spring 302d is compressed, a force is also applied to the installation cylinder 302b, so that the arc-shaped pressing block 303b is subjected to pressure, and the sealing ring 105 is subjected to pressure to prevent leakage at the edge of the sealing ring 105.

[0041] In summary, by setting the reinforcement component 300, when the ring 202b rotates clockwise to reset, it can drive the guide column 301c to move toward the sealing ring 105, squeeze the slider 302c to compress the spring 302d, and apply pressure to the edge of the sealing ring 105 to prevent the sealing ring 105 from loosening, thereby ensuring the sealing effect of the sealing ring 105.

[0042] Example 3, reference Figures 1 to 8 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a dispersion component 304 of a prefabricated pipe gallery for water conservancy projects, which solves the problem of how to evenly disperse the pressure. The dispersion component 304 includes two first arc-shaped bars 304a fixedly connected to the mounting tube 302b, and the two first arc-shaped bars 304a are fixedly connected with a second arc-shaped bar 304b fixed to the sealing ring 105, and both ends of the arc-shaped pressure block 303b are in contact with the side wall of the second arc-shaped bar 304b.

[0043] Specifically, the two second arc strips 304 b and the arc pressing block 303 b here occupy one sixth of the outer circle of the sealing ring 105 , and the six groups of second arc strips 304 b and the arc pressing block 303 b can just squeeze the outer end of the entire sealing ring 105 .

[0044] During use, when pressure is applied by the installation tube 302b, the first arc strip 304a can also be subjected to pressure. The first arc strip 304a is located in the middle of the second arc strip 304b, thereby distributing the pressure to the second arc strip 304b, so that the outer end of the sealing ring 105 is subjected to pressure at multiple points, avoiding pressure concentration on the arc pressure block 303b. By applying pressure, the sealing performance of the sealing ring 105 is improved.

[0045] In summary, by setting up the dispersion component 304, the force generated when the spring 302d is squeezed can be distributed to the arc-shaped pressure block 303b and the second arc-shaped strip 304b, so that the pressure is dispersed to the outer end circumference of the sealing ring 105, so that the sealing ring 105 is compressed at multiple points, thereby making the sealing effect of the sealing ring 105 better.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A prefabricated pipe gallery for water conservancy projects, characterized in that: include, The supporting component (100) comprises two pipe bodies (101), a first flange (102) arranged on the left end of the pipe body (101), a second flange (103) arranged on the right end of the pipe body (101), an annular groove (104) arranged on the first flange (102) and the second flange (103), a sealing ring (105) arranged on the annular groove (104), and a pipe gallery body (106) arranged outside the first flange (102) and the second flange (103); The sealing component (200) comprises a plugging assembly (201) arranged on the first flange (102) and the second flange (103), the plugging assembly (201) comprising six mounting grooves (201a) arranged in the first flange (102) and the second flange (103), the six mounting grooves (201a) being sealingly and slidably connected with sector plates (201b), and the six sector plates (201b) being capable of being spliced ​​into a circular disk having a diameter greater than the inner diameter of the pipeline body (101); a rotating assembly (202) disposed on the first flange (102) and the second flange (103), the rotating assembly (202) comprising an annular cavity (202a) disposed on the first flange (102) and the second flange (103), a circular ring (202b) rotatably connected in the annular cavity (202a); A transmission assembly (203) is arranged on the rotating assembly (202), the transmission assembly (203) comprising a strip-shaped opening (203a) arranged on the annular cavity (202a) and communicating with the mounting groove (201a), a cylinder (203b) fixed to the sector plate (201b) being slidably connected in the strip-shaped opening (203a), and a first arc-shaped groove (203c) matching with the cylinder (203b) being provided on the annular ring (202b); and a limit assembly (204) arranged on the rotating assembly (202), the limit assembly (204) comprising an arc-shaped opening (204a) arranged on the first flange (102) and the second flange (103), a shifting block (204b) fixed to the ring (202b) being slidably connected in the arc-shaped opening (204a), a plurality of extension blocks (204c) being fixedly connected to the first flange (102) and the second flange (103), a threaded hole being provided in the extension block (204c), a bolt (204d) being threadedly connected in the threaded hole, and a side wall of the bolt (204d) being abutted against a side wall of the shifting block (204b); The reinforcing component (300) comprises a pushing component (301) arranged on the rotating component (202), the pushing component (301) comprising six second arc grooves (301a) arranged on the circular ring (202b), the inner walls of the six second arc grooves (301a) are each provided with a third arc groove (301b), the distance between the third arc groove (301b) and the sealing ring (105) increases in sequence in a counterclockwise direction along the circular ring (202b), and a guide column (301c) is slidably connected in the third arc groove (301b); An elastic component (302) is arranged on the pushing component (301), the elastic component (302) comprising a support column (302a) fixedly connected to a guide column (301c), a mounting tube (302b) with one end open is provided at the outer end of the support column (302a), a slider (302c) is slidably connected inside the mounting tube (302b), the slider (302c) is elastically connected to the inner wall of the mounting tube (302b) via a spring (302d), and the support column (302a) is fixedly connected to the slider (302c); an extrusion component (303) disposed on the elastic component (302), the extrusion component (303) comprising an annular connecting cavity (303a) disposed on the annular cavity (202a), the sealing ring (105) being fixedly connected to an arc-shaped pressing block (303b), the arc-shaped pressing block (303b) being fixedly connected to an installation column (303c), and the installation column (303c) being fixedly connected to the installation cylinder (302b); and a dispersion component (304) arranged on the extrusion component (303); the dispersion component (304) comprises two first arc-shaped strips (304a) fixedly connected to the mounting cylinder (302b), the two first arc-shaped strips (304a) being fixedly connected to a second arc-shaped strip (304b) fixed to the sealing ring (105), and both ends of the arc-shaped pressing block (303b) being in contact with the side walls of the second arc-shaped strip (304b).

2. The prefabricated pipe gallery for water conservancy projects according to claim 1, characterized in that: A space with a width equal to that of the shifting block (204b) is left between the inner wall at the front end of the arc-shaped opening (204a) and the inner wall at the rear end of the arc-shaped opening (204a) and the bolt (204d).

Citation Information

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