Emergency drainage device for tunnel side wall leakage
By introducing a filtration and adjustment structure into the emergency drainage device for tunnel sidewall leakage, the problem of the device's fixed position and difficulty in adjustment was solved, enabling convenient movement and effective filtration, thus improving the drainage effect and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南京交通运营管理集团有限公司
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-28
AI Technical Summary
Existing emergency drainage devices for tunnel sidewall leakage are not easy to adjust in position and are difficult to move quickly to the leakage location for effective drainage.
A device comprising a flow-guiding body and a flow-guiding funnel was designed. The bottom of the flow-guiding body is provided with a filter structure and an adjustment structure. The filter structure filters impurities through a sliding seat and a filter screen. The adjustment structure is easily moved and positioned through a rotating block, a pulley, and a hinge plate.
This technology enables convenient movement and positioning of the drainage device, prevents blockages, improves drainage effectiveness, and enhances the practicality and reliability of the device.
Smart Images

Figure CN224174144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of emergency drainage devices for tunnel sidewall leakage, and in particular to an emergency drainage device for tunnel sidewall leakage. Background Technology
[0002] With the development of the times, the use of tunnels is essential for facilitating people's daily travel. However, during use, leakage may occur in the side walls, which can damage the walls. Therefore, drainage devices are needed to protect the walls.
[0003] To address this issue, patent CN212898620U discloses a drainage device for seepage in tunnel sidewalls, comprising: a pipe body and a cleaning component. The pipe body is vertically mounted on the sidewall, with its upper end positioned near the upper end of the sidewall and its lower end extending to a drainage ditch near the vehicle side of the sidewall. The cleaning component is detachably installed within the pipe body and contacts the inner wall of the pipe. Under external force, the cleaning component can move relative to the pipe body to clean the dirt deposited on the inner wall of the pipe. The drainage device has a simple structure, and the cleaning component can clean the dirt adhering to the inner wall of the pipe, thereby ensuring the effectiveness of the drainage device and guaranteeing smooth drainage.
[0004] The aforementioned drainage device is relatively fixed in position during use, making it difficult to move it conveniently to the location of the side wall leakage. This limits its use and makes it difficult to meet actual usage needs. Utility Model Content
[0005] The purpose of this invention is to provide an emergency drainage device for tunnel sidewall leakage, which solves the problem that existing emergency drainage devices for tunnel sidewall leakage are not convenient to move and adjust their position.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an emergency drainage device for tunnel sidewall leakage, comprising a drainage body and a drainage funnel;
[0007] The top of the drainage body is fixed with a flow-guiding funnel, and the bottom of the drainage body is provided with a filter structure;
[0008] Both sides of the bottom of the drainage body are fixed with fixing blocks, and the bottom of each fixing block is provided with an adjustment structure.
[0009] The adjustment structure includes a rotating groove at the bottom of the fixed block, and limit grooves are evenly provided inside the fixed blocks on both sides of the rotating groove. A rotating block is provided inside the rotating groove, and a pulley is installed at the bottom of the rotating block. A hinge plate is evenly hinged to the top of the rotating block, and a tension spring is fixed to one side of each hinge plate. A fixing rod is fixed to both sides of each hinge plate.
[0010] Preferably, the filter structure includes a groove formed at the bottom of the drainage body, a sliding seat provided inside the groove, reserved grooves on both sides of the sliding seat, snap-fit grooves on both sides of the drainage body, snap-fit rods provided inside the reserved grooves, and a return spring fixed on one side of each snap-fit rod, and a filter screen installed inside the sliding seat.
[0011] Preferably, the sliding seat is slidably connected inside the sliding groove, and the reserved grooves are symmetrically distributed on both sides of the sliding seat.
[0012] Preferably, one side of the snap-fit rod is semi-circular, and the side of the return spring away from the snap-fit rod is fixedly connected to the side inside the reserved groove.
[0013] Preferably, the snap-fit rod is disposed inside the snap-fit groove, and the snap-fit rod and the drainage body form an engaging structure through the snap-fit groove.
[0014] Preferably, the rotating block is rotatably connected inside the rotating groove, and the hinge plate is symmetrically distributed at the top of the rotating groove.
[0015] Preferably, the fixing rods are all disposed inside the limiting groove, and the fixing rods and the fixing block form an engaging structure through the limiting groove.
[0016] The present invention provides an emergency drainage device for tunnel sidewall leakage, the advantages of which are:
[0017] By incorporating an adjustable structure, the drainage body can easily slide inside the drainage trough via the pulley at the bottom of the rotating block, thereby moving the drainage body to the side wall leakage point. Pressing the fixing rod causes the two sets of hinge plates to move towards the center position, facilitating the rotation of the pulley into the trough and the rotation of the hinge plates to the bottom of the trough. The hinge plates then move to both sides using the elastic force of the tension spring, thus supporting and positioning the drainage body. This achieves the purpose of easily moving and positioning the device at the leakage point.
[0018] By incorporating a filtration structure, the filter screen inside the sliding seat filters out leaked liquid, thereby collecting and filtering out impurities carried by the liquid. This helps prevent blockages in the drainage channel below the main body and allows the sliding seat to be easily removed to clean the debris on top of the internal filter screen, preventing any impact on subsequent drainage work. This ultimately improves the drainage effect. Attached Figure Description
[0019] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;
[0020] Figure 2 This is a top-view cross-sectional three-dimensional structural schematic diagram of the present invention;
[0021] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0022] Figure 4 This is a side view of the three-dimensional structure of the present invention;
[0023] Figure 5 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.
[0024] The following are the annotations in the diagram: 1. Drainage body; 2. Drainage funnel; 3. Filter structure; 301. Slide groove; 302. Sliding seat; 303. Reserved groove; 304. Snap-fit groove; 305. Snap-fit rod; 306. Return spring; 307. Filter screen; 4. Fixing block; 5. Adjustment structure; 501. Rotating groove; 502. Limiting groove; 503. Rotating block; 504. Pulley; 505. Hinge plate; 506. Tension spring; 507. Fixing rod. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1-5 The present invention provides an emergency drainage device for tunnel sidewall leakage, comprising a drainage body 1 and a drainage funnel 2.
[0027] Reference Figures 1-3As shown, a guide funnel 2 is fixed to the top of the drainage body 1, and a filter structure 3 is provided at the bottom of the drainage body 1. The filter structure 3 includes a groove 301 opened at the bottom of the drainage body 1. A sliding seat 302 is provided inside the groove 301. A reserved groove 303 is opened on both sides of the sliding seat 302. A snap-fit groove 304 is opened inside the drainage body 1 on both sides of the groove 301. A snap-fit rod 305 is provided inside the reserved groove 303. A return spring is fixed on one side of each snap-fit rod 305. 306. A filter screen 307 is installed inside the sliding seat 302. The sliding seat 302 is slidably connected inside the sliding groove 301. The reserved groove 303 is symmetrically distributed on both sides of the sliding seat 302. One side of the snap-fit rod 305 is semi-circular. The side of the return spring 306 away from the snap-fit rod 305 is fixedly connected to the side inside the reserved groove 303. The snap-fit rod 305 is set inside the snap-fit groove 304. The snap-fit rod 305 and the drainage body 1 form a snap-fit structure through the snap-fit groove 304.
[0028] During tunnel operation, leaks may occur in the sidewalls, causing corrosion and impacting the tunnel's lifespan and safety. To prevent this, leaked liquid needs to be diverted. A guide funnel 2 is installed at the top of the diversion body 1, allowing leaked liquid to fall into the interior of the diversion body 1 for drainage. However, the leaked liquid may carry some gravel particles, potentially clogging the drainage channel below the diversion body 1. A filter structure 3 is installed to allow the sliding seat 302 to slide within the chute 301. A filter screen 307 is installed inside the sliding seat 302 to filter impurities carried by the permeating liquid. The sliding seat 302 is positioned inside the slide groove 301 by a locking structure formed by the locking rod 305 and the locking groove 304 to prevent it from shifting during use. One side of the locking rod 305 is semi-circular, which makes it easy to move the locking rod 305 into the reserved groove 303 when the sliding seat 302 is pulled out, thereby releasing the locking position. This makes it easy to disassemble and clean the impurities filtered by the filter screen 307 inside the sliding seat 302, thus greatly increasing the practicality of the device.
[0029] Reference Figure 1 , Figure 4 and Figure 5As shown, both sides of the bottom of the drainage body 1 are fixed with fixing blocks 4. The bottom of each fixing block 4 is provided with an adjustment structure 5. The adjustment structure 5 includes a rotating groove 501 opened at the bottom of the fixing block 4. Limiting grooves 502 are evenly opened inside the fixing blocks 4 on both sides of the rotating groove 501. A rotating block 503 is set inside the rotating groove 501. A pulley 504 is installed at the bottom end of the rotating block 503. A hinge plate 505 is evenly hinged to the top of the rotating block 503. A tension spring 506 is fixed on one side of the hinge plate 505. A fixing rod 507 is fixed on both sides of the hinge plate 505. The rotating block 503 is rotatably connected inside the rotating groove 501. The hinge plate 505 is symmetrically distributed at the top of the rotating groove 501. The fixing rods 507 are all set inside the limiting grooves 502. The fixing rods 507 and the fixing blocks 4 form a locking structure through the limiting grooves 502.
[0030] Leaks in the tunnel sidewalls occur at various locations, and traditional drainage devices installed on the sidewalls are difficult to reposition, making it hard to quickly address leaks at different locations. Therefore, an adjustment structure 5 is incorporated, with a rotating groove 501 inside the fixing block 4 and a pulley 504 installed at the bottom of the limiting groove 502. This allows the drainage body 1 to slide easily within the drainage channel via the pulley 504. During this sliding process, the hinge plate 505 is positioned inside the rotating groove 501, and the fixing rod 507 is positioned within the limiting groove 502. The rotating block 503, pulley 504, and hinge plate 505 are fixed inside the rotating groove 501. During use, the hinge plate 505 can be moved inward by pulling the fixing rod 507, so that the rotating block 503 rotates and the pulley 504 rotates into the rotating groove 501. The hinge plate 505 is placed at the bottom of the rotating groove 501 and pushed to both sides by the elastic force of the tension spring 506, thereby positioning the drainage body 1 so that it is not easy to shift its position during use, thus greatly increasing the practicality of the device.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An emergency drainage device for tunnel sidewall leakage, comprising a drainage body (1) and a drainage funnel (2); Its features are: The top of the drainage body (1) is fixed with a flow guide funnel (2), and the bottom of the drainage body (1) is provided with a filter structure (3); The bottom of the drainage body (1) is fixed with fixing blocks (4) on both sides, and the bottom of the fixing blocks (4) is provided with adjustment structures (5); The adjustment structure (5) includes a rotating groove (501) at the bottom of the fixed block (4). Limiting grooves (502) are evenly provided inside the fixed blocks (4) on both sides of the rotating groove (501). A rotating block (503) is provided inside the rotating groove (501). A pulley (504) is installed at the bottom end of the rotating block (503). A hinge plate (505) is evenly hinged to the top end of the rotating block (503). A tension spring (506) is fixed on one side of the hinge plate (505). A fixing rod (507) is fixed on both sides of the hinge plate (505).
2. The emergency drainage device for tunnel sidewall leakage according to claim 1, characterized in that: The filter structure (3) includes a groove (301) at the bottom of the drainage body (1), a sliding seat (302) is provided inside the groove (301), a reserved groove (303) is provided on both sides of the sliding seat (302), a snap-fit groove (304) is provided inside the drainage body (1) on both sides of the groove (301), a snap-fit rod (305) is provided inside the reserved groove (303), a return spring (306) is fixed on one side of the snap-fit rod (305), and a filter screen (307) is installed inside the sliding seat (302).
3. The emergency drainage device for tunnel sidewall leakage according to claim 2, characterized in that: The sliding seat (302) is slidably connected inside the sliding groove (301), and the reserved groove (303) is symmetrically distributed on both sides of the sliding seat (302).
4. The emergency drainage device for tunnel sidewall leakage according to claim 2, characterized in that: One side of the snap-fit rod (305) is semi-circular, and the side of the return spring (306) away from the snap-fit rod (305) is fixedly connected to one side inside the reserved groove (303).
5. The emergency drainage device for tunnel sidewall leakage according to claim 2, characterized in that: The snap-fit rod (305) is disposed inside the snap-fit groove (304), and the snap-fit rod (305) and the drainage body (1) form a snap-fit structure through the snap-fit groove (304).
6. The emergency drainage device for tunnel sidewall leakage according to claim 1, characterized in that: The rotating block (503) is rotatably connected inside the rotating groove (501), and the hinge plate (505) is symmetrically distributed at the top of the rotating groove (501).
7. The emergency drainage device for tunnel sidewall leakage according to claim 1, characterized in that: The fixing rods (507) are all located inside the limiting grooves (502), and the fixing rods (507) and the fixing blocks (4) form a locking structure through the limiting grooves (502).
Citation Information
Patent Citations
Drainage device for leakage of tunnel low side wall
CN212898620U