Tunnel drainage device with anti-blocking structure

By introducing anti-clogging structures, including fixing rings, limiting structures, and metal filter screens, into the drainage device for tunnels, the problem of silt blockage was solved, achieving a highly efficient drainage effect.

CN224174145UActive Publication Date: 2026-04-28SHAANXI JIAOGUAN MUNICIPAL ROAD & BRIDGE GROUP CO LTD FIRST BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI JIAOGUAN MUNICIPAL ROAD & BRIDGE GROUP CO LTD FIRST BRANCH
Filing Date
2025-06-16
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

When existing tunnel drainage systems use gutters on the outside to intercept surface water, the effect of intercepting sediment is limited, leading to blockage of the system.

Method used

A drainage device with an anti-clogging structure was designed, including a fixing ring, a limiting structure, a metal filter screen, and a cone. The metal filter screen is installed through the limiting structure, and an annular interceptor plate and a water inlet are set on the mounting cover plate. The metal filter screen intercepts impurities, and the cone prevents impurities from accumulating.

Benefits of technology

It effectively prevents clogging of the drainage device, improves drainage efficiency, reduces the risk of impurity accumulation, and ensures the normal operation of the drainage device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tunnel drainage device with the anti-blocking structure comprises a tunnel body, a drainage installation cylinder is fixedly arranged in the tunnel body, and a drainage pipe is installed on the outer side of the lower end of the drainage installation cylinder. The fixing ring is fixedly mounted on the middle side of the interior of the drainage mounting cylinder, a limiting structure is connected to the upper side of the interior of the fixing ring, and the limiting structure comprises a movable rod, a connecting plate and a mounting rod; the connecting mounting plate is mounted on the inner side of the fixing ring, an anti-blocking structure is mounted on the lower side of the connecting mounting plate, the anti-blocking structure comprises a conical barrel and a metal filter screen, and the metal filter screen is fixedly mounted on the inner side of the lower end of the connecting mounting plate. According to the tunnel drainage device with the anti-blocking structure, the anti-blocking structure is arranged, blocking prevention can be conducted on the interior of the drainage device, so that the drainage effect of the drainage device is improved, a limiting structure is arranged, a metal filter screen can be installed, and therefore the drainage efficiency of the drainage device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of tunnel technology, specifically to a drainage device for tunnels with an anti-clogging structure. Background Technology

[0002] Drainage devices refer to structures that discharge water. They are a general term for engineering equipment and structures used to collect, transport, treat, and discharge rainwater, sewage, wastewater, and other liquids. Tunnels are engineering structures buried in the ground and are a form of human utilization of underground space. Drainage devices are needed in tunnels to discharge water from them.

[0003] Based on existing solutions and actual production and processing, current tunnel drainage devices still have some problems. For example, when preventing blockages in drainage devices, gutters are set up on the outside of the drainage device to intercept surface water and reduce the amount of sediment entering the drainage device. However, the interception effect of gutters on sediment is limited, which can lead to blockages in the drainage device. Therefore, this utility model provides a tunnel drainage device with an anti-blockage structure to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a drainage device for tunnels with an anti-clogging structure, in order to solve the problem mentioned in the background art that when preventing clogging of drainage devices, surface water is intercepted by setting up gutters on the outside of the drainage device to reduce the entry of mud and sand into the drainage device. However, since the interception effect of setting up gutters on mud and sand is limited, it will lead to clogging of the drainage device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drainage device for tunnels with an anti-blocking structure, comprising a tunnel body, a drainage mounting cylinder fixedly installed inside the tunnel body, and a drainage pipe installed on the outer side of the lower end of the drainage mounting cylinder;

[0006] Also includes:

[0007] A fixed ring is fixedly installed inside the drainage installation cylinder. A limiting structure is connected to the upper inside of the fixed ring. The limiting structure includes a movable rod, a connecting plate, and an installation rod. The movable rod is installed inside the upper inside of the fixed ring. A connecting plate is fixedly installed on the upper side of the movable rod, and an installation rod is movably installed on the inner side of the upper end of the connecting plate.

[0008] A connecting mounting plate is installed inside the fixing ring, and an anti-clogging structure is installed on the lower side of the connecting mounting plate. The anti-clogging structure includes a cone and a metal filter screen. The metal filter screen is fixedly installed on the lower inner side of the connecting mounting plate, and the cone is movably installed on the lower middle side of the metal filter screen.

[0009] Preferably, a fixed support plate is fixedly installed on the upper inner side of the drainage installation cylinder, and a fixed connecting block is connected to the upper inner side of the fixed support plate. An installation cover plate is fixedly installed on the upper side of the fixed connecting block, and a fixing rod is connected to the outer side of the middle part of the installation cover plate.

[0010] Preferably, the outer side of the cone has a perforated structure, and the cone and the metal filter screen are interlocked, with the cone lifting the middle of the metal filter screen.

[0011] Preferably, a connecting spring is also fixedly installed on the inner middle side of the fixed ring, and a movable limiting rod is fixedly installed on the inner side of the connecting spring.

[0012] Preferably, the surface of the mounting cover is further provided with a water inlet hole, and an annular interceptor plate is fixedly installed on the outer side of the upper end of the mounting cover.

[0013] Preferably, the movable limiting rod and the fixed ring are telescopically slidingly connected, and the inner side of the movable limiting rod has an arc-shaped structure.

[0014] Preferably, the fixed support plate and the fixed connecting block are connected by a snap-fit ​​connection, and the fixed connecting block and the fixed rod are connected by a threaded connection.

[0015] Preferably, the fixed support plate has an installation ring on the outer side of its middle section to support the installation cover plate.

[0016] Preferably, the movable rod and the fixed ring are rotatably connected, and the vertical cross-section of the movable rod is a "T" shaped structure.

[0017] Preferably, the movable rod and the connecting plate are fixedly connected, and the connecting plate and the mounting rod are threadedly connected.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the tunnel drainage device with anti-clogging structure is provided with an anti-clogging structure, which can prevent the inside of the drainage device from being blocked, thereby improving the drainage effect of the drainage device; and a limiting structure is provided to install the metal filter screen, thereby improving the drainage efficiency of the drainage device.

[0019] 1. By installing the connecting mounting plate inside the drainage mounting cylinder, the connecting mounting plate drives the metal filter screen to be installed inside the fixed ring. This causes the connecting mounting plate to push the moving limit rod to move outward inside the fixed ring, which in turn causes the moving limit rod to compress the connecting spring. The connecting spring then causes the moving limit rod to slide inward to the outer middle of the connecting mounting plate for engagement. Rotating the connecting plate causes the connecting plate to drive the movable rod to rotate inside the fixed ring, thus rotating the connecting plate to the upper side of the connecting mounting plate. Rotating the mounting rod causes the mounting rod to be threaded on the inner upper end of the connecting plate, thus moving the mounting rod downward and threading it on the upper side of the connecting mounting plate. This facilitates the installation of the connecting mounting plate and the limiting of the metal filter screen.

[0020] 2. By placing the mounting cover plate inside the upper side of the drainage installation cylinder, the mounting cover plate drives the fixing connecting block to be installed inside the drainage installation cylinder, thereby making the fixing connecting block snap into the inside of the fixing support plate. Then, rotate the fixing rod so that the fixing rod is threaded on the outer side of the middle of the mounting cover plate, thereby making the fixing rod threaded on the inside of the fixing connecting block. Then, move the fixing rod downward so that the fixing rod is threaded on the inside of the fixing support plate, which facilitates the installation of the mounting cover plate.

[0021] 3. The annular interceptor plate fixedly installed on the outer side of the upper end of the cover plate can block the mud and sand in the water flow. The water then enters the interior of the drainage installation cylinder through the connecting inlet hole, where the metal filter screen set inside the drainage installation cylinder intercepts impurities in the water flow. The cone-shaped barrel pushes the metal filter screen upwards, which can effectively prevent impurities from accumulating on the filter screen surface, thereby reducing the risk of clogging and facilitating anti-clogging of the drainage installation cylinder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the connection between the tunnel body and the drainage installation cylinder of this utility model;

[0023] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a schematic cross-sectional view of the connection between the cone and the metal filter screen of this utility model.

[0025] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0026] Figure 5 This is a schematic diagram of the overall structure of the cone-shaped barrel of this utility model;

[0027] Figure 6 This is a schematic diagram of the overall structure of the fixed support plate of this utility model.

[0028] In the diagram: 1. Tunnel body; 2. Drainage installation cylinder; 3. Drainage pipe; 4. Cone; 5. Fixing ring; 6. Metal filter screen; 7. Mounting cover plate; 8. Connecting water inlet hole; 9. Connecting spring; 10. Moving limit rod; 11. Connecting mounting plate; 12. Fixed support plate; 13. Fixed connecting block; 14. Fixing rod; 15. Annular intercepting plate; 16. Movable rod; 17. Connecting plate; 18. Mounting rod. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a drainage device for tunnels with an anti-clogging structure, comprising: a tunnel body 1, a drainage mounting cylinder 2, a drainage pipe 3, a cone 4, a fixing ring 5, a metal filter screen 6, a mounting cover plate 7, a connecting inlet hole 8, a connecting spring 9, a movable limiting rod 10, a connecting mounting plate 11, a fixed support plate 12, a fixed connecting block 13, a fixing rod 14, an annular intercepting plate 15, a movable rod 16, a connecting plate 17, and a mounting rod 18. In operation, the specific details are as follows... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a fixed ring 5 is fixedly installed inside the middle of the drainage installation cylinder 2, a cone 4 is fixedly installed inside the lower side of the drainage installation cylinder 2, a connecting spring 9 is fixedly installed inside the middle of the fixed ring 5, a movable limiting rod 10 is fixedly installed inside the connecting spring 9, a connecting mounting plate 11 is movably installed inside the movable limiting rod 10, and a metal filter screen 6 is fixedly connected to the lower side of the connecting mounting plate 11. When the connecting mounting plate 11 is manually placed inside the drainage installation cylinder 2, the connecting mounting plate 11 moves the metal filter screen 6 inside the drainage installation cylinder 2. Under the action of gravity, the connecting mounting plate 11 moves downward inside the fixed ring 5. This downward movement of the connecting mounting plate 11 pushes the movable limiting rod 10 outward, causing the movable limiting rod 10 to compress the connecting spring 9. This causes the connecting mounting plate 11 to engage inside the fixed ring 5. Finally, under the elastic action of the connecting spring 9, the connecting spring 9... The movable limiting rod 10 moves inward to the outer side of the middle of the connecting mounting plate 11 for engagement, so that the metal filter screen 6 is engaged on the outer side of the upper end of the cone 4. Then, the movable rod 16 is movably installed on the upper side of the fixed ring 5, the connecting plate 17 is fixedly installed on the upper side of the movable rod 16, and the mounting rod 18 is movably connected to the inner side of the upper end of the connecting plate 17. The connecting plate 17 is manually rotated, so that the connecting plate 17 drives the movable rod 16 to rotate inward on the upper side of the fixed ring 5, so that the movable rod 16 drives the connecting plate 17 to rotate inward to the upper side of the connecting mounting plate 11. Then, the mounting rod 18 is tightened, so that the mounting rod 18 is threaded on the inner side of the upper end of the connecting plate 17 under the tightening action, so that the mounting rod 18 moves downward, and then the mounting rod 18 is threaded on the upper side of the connecting mounting plate 11 under the downward movement of the mounting rod 18, which facilitates the limiting of the connecting mounting plate 11, thereby facilitating the installation of the metal filter screen 6.

[0031] Specific examples Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, a fixed support plate 12 is fixedly installed on the upper side of the inside of the drainage installation cylinder 2. An installation cover plate 7 is movably installed on the upper side of the fixed support plate 12. A fixed connecting block 13 is fixedly installed on the outer side of the lower end of the installation cover plate 7. A fixed rod 14 is movably installed on the inner side of the fixed connecting block 13. The installation cover plate 7 is manually placed on the upper side of the inside of the drainage installation cylinder 2. Under gravity, the installation cover plate 7 drives the fixed connecting block 13 to be installed inside the drainage installation cylinder 2, thereby locking the fixed connecting block 13 into the inside of the fixed support plate 12. Then, the installation cover plate 7 is screwed on. The fixing rod 14 on the outer side of the middle section is threaded to the outer side of the mounting cover plate 7, thereby making the fixing rod 14 threaded inside the fixing connecting block 13. Under the action of the thread between the fixing rod 14 and the fixing connecting block 13, the fixing rod 14 moves downward, making the fixing rod 14 threaded inside the fixing support plate 12, which facilitates the installation of the mounting cover plate 7. The mounting ring fixedly installed on the outer side of the middle section of the fixing support plate 12 can support the mounting cover plate 7 and prevent the mounting cover plate 7 from tilting.

[0032] Specific examples Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the annular interceptor plate 15 is fixedly installed on the outer side of the upper end of the cover plate 7 via the connecting water inlet hole 8 on the surface of the cover plate 7, the drainage cylinder 2 is fixedly installed in the middle of the tunnel body 1, the drainage pipe 3 is fixedly installed on the outer side of the lower end of the drainage cylinder 2, and the cone 4 is fixedly installed on the lower side of the inside of the drainage cylinder 2. The annular interceptor plate 15 fixedly installed on the outer side of the upper end of the cover plate 7 can effectively block sediment in the water flow. The water flows through the connecting water inlet hole 8 on the surface of the cover plate 7 into the interior of the drainage cylinder 2, allowing impurities to enter the metal filter screen 6. The internal structure allows the metal filter screen 6 to filter impurities in the water flow, which then flows out through the drain pipe 3 fixedly installed on the outer side of the lower end of the drain installation cylinder 2. The conical barrel 4 then pushes the metal filter screen 6 upwards, effectively preventing impurities from accumulating on the filter screen surface and reducing the risk of clogging. The raised position of the metal filter screen 6 moves the impurities outwards, allowing the water to flow through the metal filter screen 6 to the outside of the conical barrel 4. The water then flows into the interior of the drain installation cylinder 2 through the perforated structure on the surface of the conical barrel 4, facilitating the prevention of clogging inside the drain installation cylinder 2.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] 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. A drainage device for tunnels with an anti-blocking structure, comprising a tunnel body (1), a drainage mounting cylinder (2) fixedly installed inside the tunnel body, and a drainage pipe (3) installed on the outer side of the lower end of the drainage mounting cylinder (2); Its features are, Also includes: A fixed ring (5) is fixedly installed inside the drainage installation cylinder (2). A limiting structure is connected to the upper inside of the fixed ring (5). The limiting structure includes a movable rod (16), a connecting plate (17), and an installation rod (18). The movable rod (16) is installed inside the upper inside of the fixed ring (5). The connecting plate (17) is fixedly installed on the upper side of the movable rod (16). The installation rod (18) is movably installed on the inner side of the upper end of the connecting plate (17). A connecting mounting plate (11) is installed inside the fixing ring (5), and an anti-blocking structure is installed on the lower side of the connecting mounting plate (11). The anti-blocking structure includes a cone (4) and a metal filter (6). The metal filter (6) is fixedly installed on the lower inner side of the connecting mounting plate (11), and the cone (4) is movably installed on the lower middle side of the metal filter (6).

2. A tunnel drainage device with an anti-clogging structure according to claim 1, characterized in that: A fixed support plate (12) is fixedly installed on the upper inside of the drainage installation cylinder (2), and a fixed connecting block (13) is connected to the upper inside of the fixed support plate (12). An installation cover plate (7) is fixedly installed on the upper side of the fixed connecting block (13), and a fixed rod (14) is connected to the outer side of the middle part of the installation cover plate (7).

3. A tunnel drainage device with an anti-clogging structure according to claim 1, characterized in that: The cone (4) has a perforated structure on its outer side, and the cone (4) and the metal filter (6) are connected by a snap-fit ​​connection, and the cone (4) lifts up the middle part of the metal filter (6).

4. A drainage device for tunnels with an anti-clogging structure according to claim 1, characterized in that: A connecting spring (9) is also fixedly installed on the inner side of the fixed ring (5), and a movable limiting rod (10) is fixedly installed on the inner side of the connecting spring (9).

5. A tunnel drainage device with an anti-clogging structure according to claim 2, characterized in that: The surface of the mounting cover (7) is also provided with a water inlet hole (8), and an annular interceptor plate (15) is fixedly installed on the outer side of the upper end of the mounting cover (7).

6. A drainage device for tunnels with an anti-clogging structure according to claim 4, characterized in that: The movable limiting rod (10) and the fixed ring (5) are connected by a telescopic sliding connection, and the inner side of the movable limiting rod (10) is an arc-shaped structure.

7. A drainage device for tunnels with an anti-clogging structure according to claim 2, characterized in that: The fixed support plate (12) and the fixed connecting block (13) are connected by a snap-fit ​​connection, and the fixed connecting block (13) and the fixed rod (14) are connected by a thread.

8. A drainage device for tunnels with an anti-clogging structure according to claim 7, characterized in that: The fixed support plate (12) has an installation ring on the outer side of its middle part, which can support the installation cover plate (7).

9. A drainage device for tunnels with an anti-clogging structure according to claim 1, characterized in that: The movable rod (16) and the fixed ring (5) are rotatably connected, and the vertical cross-section of the movable rod (16) is a "T" shaped structure.

10. A drainage device for tunnels with an anti-clogging structure according to claim 9, characterized in that: The movable rod (16) is fixedly connected to the connecting plate (17), and the connecting plate (17) is threadedly connected to the mounting rod (18).