Subway tunneling rapid drainage structure

By designing a rapid drainage structure for subway tunnel excavation, the problem of poor drainage within the tunnel was solved, enabling rapid drainage and convenient maintenance, and ensuring construction safety and progress.

CN224592179UActive Publication Date: 2026-08-04QINGDAO MUNICIPAL CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO MUNICIPAL CONSTR GRP CO LTD
Filing Date
2025-08-15
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing technologies for subway tunnel drainage are ineffective, especially in geological structures with high water content. Water accumulation inside the tunnel cannot be effectively drained, affecting the stability of supports, delaying construction progress, and the filter plates are easily clogged, making cleaning inconvenient.

Method used

A rapid drainage structure for subway tunnels was designed, including pipes, connecting components, filtering components, and anti-backflow mechanism. The connecting components are connected to existing drainage pipes, the filtering components filter water, the anti-backflow mechanism prevents water from flowing back, and the connecting components facilitate installation and disassembly.

Benefits of technology

It enabled rapid drainage within the tunnel, reduced costs, prevented filter plate clogging, ensured construction safety, and improved construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a subway open cut tunnel quick drainage structure, the utility model relates to subway construction technical field, including pipeline, the middle part of pipeline is provided with pump body, and one end of pipeline is provided with intercommunication subassembly, and intercommunication subassembly is connected with pipeline through butt -joint subassembly, and the other end of pipeline is equipped with filter assembly, and filter assembly is connected with pipeline through connecting subassembly, and anti -backflow mechanism is arranged in filter assembly. The device can be installed on the existing drainage pipeline in the tunnel through the setting intercommunication subassembly and butt -joint subassembly, that is, the smooth drainage of the whole tunnel is realized by using the existing drainage pipeline, and the cost can be effectively reduced. The water entering the pipeline can be filtered through the filter assembly, and the filter assembly can be installed and disassembled through the connecting assembly, so that the filter assembly can be replaced or cleaned conveniently, and the filter plate is prevented from being blocked when the water diversion pipe diverts water into the drainage pipeline.
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Description

Technical Field

[0001] This utility model relates to the field of subway construction technology, specifically a rapid drainage structure for subway tunnels excavated by cutting and excavating. Background Technology

[0002] After tunnel excavation, to stabilize the surrounding rock and ensure safety, a support structure with sufficient strength needs to be constructed. This tunnel support structure is called tunnel lining. For geological structures with high water content, composite lining is used during tunnel construction. Composite lining refers to tunnel lining constructed in two layers, inner and outer, sequentially. Before the secondary lining construction, the tunnel must be kept dry to ensure the safety and quality of tunnel construction.

[0003] In existing technologies, due to poor drainage, when there is relatively a lot of water accumulation in the tunnel, the effect of relying on surface infiltration for drainage is relatively poor. Furthermore, when the surface water content becomes saturated, the water accumulation in the tunnel cannot be drained, which can easily affect the stability of the supports, thereby delaying the construction progress. In practical use, it cannot be effectively connected with the pipes in the tunnel, and after a long period of drainage, the filter plate may be blocked by solid impurities, making it difficult to clean the filter plate and rendering the entire drainage structure unusable. Utility Model Content

[0004] The purpose of this invention is to provide a rapid drainage structure for subway tunnels to address the shortcomings of existing technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid drainage structure for subway tunnels, including a pipe, a pump body in the middle of the pipe, a connecting component at one end of the pipe, the connecting component being connected to the pipe via a docking component, a filter component at the other end of the pipe, the filter component being connected to the pipe via a connecting component, and an anti-backflow mechanism being provided inside the filter component.

[0006] As described above, a rapid drainage structure for a subway tunnel includes a connecting component comprising a connecting pipe, a sealing sleeve, and a fixing block. Sealing sleeves are provided at both ends of the fixing block. The connecting pipe is fixedly installed in the middle of the fixing block, penetrating the middle of the fixing block. A sealing sleeve is fixedly fitted at one end of the connecting pipe. One end of the connecting pipe is connected to a pipeline, and the sealing sleeve at one end of the connecting pipe is located inside the pipeline and cooperates with it. The other end of the connecting pipe is connected to a drainage pipeline, and the sealing sleeve at the other end of the connecting pipe is located inside the drainage pipeline and cooperates with it. The fixing block is connected to a docking component.

[0007] As described above, a rapid drainage structure for subway tunnel excavation includes a docking assembly comprising a docking sleeve, a connecting block, and bolts. The connecting assembly is located inside the docking sleeve. The fixing block is fixedly connected to the inner wall of the docking sleeve. Connecting blocks are fixedly installed on both the upper and lower sides of one end of the pipe. A through hole is opened on one side of the connecting block. Threaded holes are opened on both the upper and lower sides of the fixing block. The end of the bolt passes through the through hole and is threadedly connected to the threaded hole.

[0008] As described above, a rapid drainage structure for subway tunnels includes a filter assembly comprising a filter pipe and a filter screen. One end of the filter pipe is connected to a pipeline via a connecting assembly. The filter screen is installed inside the filter pipe, and an anti-backflow mechanism is installed inside the filter pipe, with the anti-backflow mechanism located on one side of the filter screen.

[0009] As described above, a rapid drainage structure for subway tunnels includes an anti-backflow mechanism comprising a limiting block, a sealing ball, and a guide rod. The other end of the filter pipe is tapered, and the sealing ball engages with the inner wall of the other end of the filter pipe. The sealing ball is located inside the other end of the filter pipe, and limiting blocks are provided on both the upper and lower sides of the filter pipe. The limiting blocks are located on one side of the filter screen plate, and the limiting blocks are fixedly connected to the inner wall of the other end of the filter pipe via the guide rod. Sliding grooves are provided on both the upper and lower sides of the sealing ball, and the guide rod is located within the sliding grooves and slidably connected to the sliding grooves.

[0010] As described above, a rapid drainage structure for subway tunnel excavation includes a connecting component comprising a support block, a connecting pipe, and screws. Support blocks are fixedly installed on both the upper and lower sides of the other end of the pipe. One side of the connecting pipe is connected to one end of the filter pipe. A limiting hole is opened on one side of the support block, and a threaded hole is opened on the other side of the support block. The threaded hole communicates with the limiting hole. A screw is threaded into the threaded hole, and the end of the screw is inserted into the limiting hole and can move along the limiting hole. Moving grooves are opened inside both ends of the connecting pipe, and through grooves are opened on both sides of the connecting pipe. The through grooves communicate with the moving grooves. A T-shaped rod is slidably installed inside the moving groove. One end of the T-shaped rod is inclined, passes through the through groove, and inserts into the corresponding limiting hole. The other end of the T-shaped rod is fixedly connected to the inner wall of the moving groove by a spring.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by setting up a connecting component and a docking component, this device can be installed on the existing drainage pipes in the tunnel, that is, it can make smooth drainage of the entire tunnel by utilizing the existing drainage pipes, which can effectively reduce costs. The filter assembly can filter the water entering the pipe, and the connecting assembly can install and remove the filter assembly, which makes it easy to replace or clean the filter assembly and prevent the filter plate from becoming clogged when the water is introduced into the drain pipe. The backflow prevention mechanism can prevent water from flowing back into the drainage pipe, thus avoiding disruption to normal operation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A magnified view of part of I.

[0014] Reference numerals: 1-pipe, 2-pump body, 3-connecting assembly, 31-connecting pipe, 32-sealing sleeve, 33-fixing block, 4-connecting assembly, 41-connecting sleeve, 42-connecting block, 43-bolt, 44-through hole, 45-screw hole, 5-filter assembly, 51-filter pipe, 52-filter screen, 6-anti-backflow mechanism, 61-limiting block, 62-sealing ball, 63-guide rod, 64-slide groove, 7-connecting assembly, 71-support block, 72-connecting pipe, 73-screw, 74-limiting hole, 75-threaded hole, 76-moving groove, 77-through groove, 78-T-shaped rod, 79-spring. Detailed Implementation

[0015] 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.

[0016] like Figures 1 to 2As shown in the figure, this embodiment discloses a rapid drainage structure for subway tunnels, including a pipe 1, a pump body 2 in the middle of the pipe 1, and a connecting component 3 at one end of the pipe 1. The connecting component 3 includes a connecting pipe 31, a sealing sleeve 32, and a fixing block 33. Both ends of the fixing block 33 are provided with sealing sleeves 32. The connecting pipe 31 is fixedly installed in the middle of the fixing block 33, and the connecting pipe 31 passes through the middle of the fixing block 33. The end of the connecting pipe 31 is fixedly fitted with a sealing sleeve 32. One end of the connecting pipe 31 is connected to the pipe 1, and the sealing sleeve 32 at one end of the connecting pipe 31 is located inside the pipe 1 and cooperates with the pipe 1. The other end of the connecting pipe 31 is connected to the drainage pipe, and the sealing sleeve 32 at the other end of the connecting pipe 31 is located inside the drainage pipe and cooperates with the drainage pipe. The fixing block 33 is connected to a docking component 4. During use, the connecting pipe 31 can connect the pipe 1 and the drainage pipe, the sealing sleeve 32 can seal the pipe 1 and the drainage pipe, and the fixing block 33 can fix the connecting component 3, making the device more convenient to use.

[0017] The connecting component 3 is connected to the pipe 1 via the docking component 4. The docking component 4 includes a docking sleeve 41, a connecting block 42, and a bolt 43. The connecting component 3 is located inside the docking sleeve 41. The fixing block 33 is fixedly connected to the inner wall of the docking sleeve 41. The connecting block 42 is fixedly installed on both the upper and lower sides of one end of the pipe 1. A through hole 44 is opened on one side of the connecting block 42. Threaded holes 45 are opened on both the upper and lower sides of the fixing block 33. The end of the bolt 43 passes through the through hole 44 and is threadedly connected to the threaded hole 45. When using this device, one end of the pipe 1 is inserted into the docking sleeve 41, and the bolt 43 is rotated so that the end of the bolt 43 is threadedly connected to the corresponding threaded hole 45, thereby fixing the docking sleeve 41 to the pipe 1, thus achieving the fixation of the connecting component 3.

[0018] The other end of the pipe 1 is provided with a filter assembly 5, which includes a filter pipe 51 and a filter screen 52. One end of the filter pipe 51 is connected to the pipe 1 through a connecting assembly 7. The filter screen 52 is installed inside the filter pipe 51, and an anti-backflow mechanism 6 is installed inside the filter pipe 51. The anti-backflow mechanism 6 is located on one side of the filter screen 52. The filter pipe 51 can be installed and removed through the connecting assembly 7, and the water entering the pipe 1 can be filtered through the filter screen 52.

[0019] The filter assembly 5 is connected to the pipe 1 via a connecting assembly 7, which includes a support block 71, a connecting pipe 72, and a screw 73. Support blocks 71 are fixedly installed on both the upper and lower sides of the other end of the pipe 1. One side of the connecting pipe 72 communicates with one end of the filter pipe 51. A limiting hole 74 is opened on one side of the support block 71, and a threaded hole 75 is opened on the other side of the support block 71. The threaded hole 75 communicates with the limiting hole 74. A screw 73 is threaded into the threaded hole 75, and the end of the screw 73 is inserted into the limiting hole 74 and can move along the limiting hole 74. Moving grooves 76 are opened inside both ends of the connecting pipe 72, and through grooves 77 are opened on both sides of the connecting pipe 72. The through grooves 77 communicate with the moving grooves 76. A T-shaped rod 78 is slidably installed inside the moving groove 76. One end of the T-shaped rod 78 is inclined and passes through... The through groove 77 is inserted into the corresponding limiting hole 74. The other end of the T-shaped rod 78 is fixedly connected to the inner wall of the moving groove 76 by a spring 79. When using this device, the connecting tube 72 is positioned between the two support blocks 71. Under the action of the spring 79, one end of the T-shaped rod 78 can be pushed through the through groove 77 and inserted into the corresponding limiting hole 74, which can support the connecting tube 72 and thus fix the filter tube 51. When it is necessary to remove the filter tube 51, the user turns the screw 73. The end of the screw 73 moves to be flush with the limiting hole 74 and pushes the T-shaped rod 78 to move into the through groove 77. The T-shaped rod 78 no longer supports the connecting tube 72, and the filter tube 51 can be removed. This makes the device easy to install and remove, and makes the device more convenient to use.

[0020] The filter assembly 5 is equipped with an anti-backflow mechanism 6, which includes a limiting block 61, a sealing ball 62, and a guide rod 63. The other end of the filter tube 51 is tapered. The sealing ball 62 engages with the inner wall of the other end of the filter tube 51. The other end of the filter tube 51 is also equipped with a sealing ball 62. Limiting blocks 61 are located on both the upper and lower sides of the filter tube 51, situated on one side of the filter screen plate 52. The limiting blocks 61 are fixedly connected to the inner wall of the other end of the filter tube 51 via the guide rod 63. Sliding grooves 64 are formed on both the upper and lower sides of the sealing ball 62. The guide rod 63 is located within and slidably connected to the sliding grooves 64. When water enters the right end of the filter tube 51, it can prevent backflow. The sealing ball 62 impacts the filter tube 51, causing it to move to the left along the guide rod 63. The sealing ball 62 then no longer engages with the inner wall of the other end of the filter tube 51, allowing water to enter the interior of the pipe 1 through the filter tube 51. The limiting block 61 limits the movement of the sealing ball 62, while the guide rod 63 provides support and guidance. When water enters the left end of the filter tube 51, it impacts the sealing ball 62, causing it to move to the right along the guide rod 63. This allows the sealing ball 62 to engage with the inner wall of the other end of the filter tube 51, sealing the other end and preventing backflow.

[0021] Working principle: During use, the connecting pipe 31 connects pipe 1 to the drainage pipe, the sealing sleeve 32 seals pipe 1 and the drainage pipe, and the fixing block 33 secures the connecting component 3, making the device more convenient to use. When using the device, insert one end of pipe 1 into the connecting sleeve 41, rotate the bolt 43 to thread the end of the bolt 43 into the corresponding screw hole 45, thus fixing the connecting sleeve 41 onto pipe 1 and securing the connecting component 3. The connecting component 7 allows for the installation and removal of the filter pipe 51. The filter screen 52 filters the water entering pipe 1. When using the device, the connecting pipe 72 is positioned between the two support blocks 71. Under the action of the spring 79, one end of the T-shaped rod 78 passes through the through groove 77 and inserts into the corresponding limiting hole 74, providing support for the connecting pipe 72 and securing the filter pipe 51. When the filter pipe 51 needs to be removed, use... Rotating screw 73 moves its end until it is flush with the limiting hole 74, pushing T-shaped rod 78 to the through groove 77. T-shaped rod 78 no longer supports connecting pipe 72, allowing filter pipe 51 to be disassembled. This facilitates installation and disassembly, making the device more convenient to use. When water enters the right end of filter pipe 51, it impacts sealing ball 62, causing it to move to the left along guide rod 63. Sealing ball 62 no longer mates with the inner wall of the other end of filter pipe 51. The filter tube 51 allows water to enter the interior of the pipe 1. The limiting block 61 limits the sealing ball 62, and the guide rod 63 supports and guides the sealing ball 62. When water enters the left end of the filter tube 51, it impacts the sealing ball 62, causing it to move to the right along the guide rod 63. This allows the sealing ball 62 to engage with the inner wall of the other end of the filter tube 51, sealing the other end of the filter tube 51 and preventing water backflow.

[0022] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0023] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A rapid drainage structure for subway tunnels excavated by cutting and excavating, characterized in that: It includes a pipe (1), a pump body (2) is installed in the middle of the pipe (1), a connecting component (3) is installed at one end of the pipe (1), the connecting component (3) is connected to the pipe (1) through a docking component (4), and a filter component (5) is installed at the other end of the pipe (1). The filter component (5) is connected to the pipe (1) through a connecting component (7), and an anti-backflow mechanism (6) is installed inside the filter component (5). The connecting component (3) includes a connecting pipe (31), a sealing sleeve (32) and a fixing block (33). Both ends of the fixing block (33) are provided with sealing sleeves (32). The connecting pipe (31) is fixedly installed in the middle of the fixing block (33). The connecting pipe (31) passes through the middle of the fixing block (33). The end of the connecting pipe (31) is fixedly fitted with a sealing sleeve (32). One end of the connecting pipe (31) is connected to the pipe (1). The sealing sleeve (32) at one end of the connecting pipe (31) is located inside the pipe (1) and cooperates with the pipe (1). The other end of the connecting pipe (31) is connected to the drainage pipe. The sealing sleeve (32) at the other end of the connecting pipe (31) is located inside the drainage pipe and cooperates with the drainage pipe. The fixing block (33) is connected to the docking component (4). The docking assembly (4) includes a docking sleeve (41), a connecting block (42) and a bolt (43). The connecting assembly (3) is located inside the docking sleeve (41). The fixing block (33) is fixedly connected to the inner wall of the docking sleeve (41). The connecting block (42) is fixedly installed on both the upper and lower sides of one end of the pipe (1). A through hole (44) is opened on one side of the connecting block (42). Screw holes (45) are opened on both the upper and lower sides of the fixing block (33). The end of the bolt (43) passes through the through hole (44) and is threadedly connected to the screw hole (45). The filter assembly (5) includes a filter tube (51) and a filter screen (52). One end of the filter tube (51) is connected to the pipe (1) through a connecting assembly (7). The filter screen (52) is installed inside the filter tube (51). An anti-backflow mechanism (6) is installed inside the filter tube (51). The anti-backflow mechanism (6) is located on one side of the filter screen (52). The anti-backflow mechanism (6) includes a limiting block (61), a sealing ball (62), and a guide rod (63). The other end of the filter tube (51) is tapered. The sealing ball (62) is fitted with the inner wall of the other end of the filter tube (51). The sealing ball (62) is provided inside the other end of the filter tube (51). Limiting blocks (61) are provided on both the upper and lower sides of the filter tube (51). The limiting blocks (61) are located on one side of the filter screen plate (52). The limiting blocks (61) are fixedly connected to the inner wall of the other end of the filter tube (51) through the guide rod (63). The sealing ball (62) has sliding grooves (64) on both the upper and lower sides. The guide rod (63) is located in the sliding groove (64) and is slidably connected to the sliding groove (64).

2. The rapid drainage structure for a subway tunnel according to claim 1, characterized in that: The connecting assembly (7) includes a support block (71), a connecting pipe (72), and a screw (73). The support block (71) is fixedly installed on both the upper and lower sides of the other end of the pipe (1). One side of the connecting pipe (72) is connected to one end of the filter pipe (51). A limiting hole (74) is opened on one side of the support block (71), and a threaded hole (75) is opened on the other side of the support block (71). The threaded hole (75) communicates with the inside of the limiting hole (74). The screw (73) is threaded into the threaded hole (75), and the end of the screw (73) is inserted into the limiting hole (74). The connecting tube (72) can move along the limiting hole (74). The connecting tube (72) has a moving groove (76) inside both ends. The connecting tube (72) has a through groove (77) on both sides. The through groove (77) communicates with the moving groove (76). A T-shaped rod (78) is slidably installed inside the moving groove (76). One end of the T-shaped rod (78) is a slope. One end of the T-shaped rod (78) passes through the through groove (77) and is inserted into the corresponding limiting hole (74). The other end of the T-shaped rod (78) is fixedly connected to the inner wall of the moving groove (76) by a spring (79).