Tunnel drainage device

By introducing early warning and cleaning mechanisms into the tunnel drainage system, the problem of blockage caused by the accumulation of garbage and debris was solved, enabling automatic early warning and cleaning, and ensuring the stability and safety of the drainage system.

CN224679552UActive Publication Date: 2026-08-25SHAANXI JUXIANGHONG TRADING CO LTD
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Patent Information

Application Number
CN202522132041.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-08-25
Estimated Expiration
2035-10-09

AI Technical Summary

Technical Problem

Existing tunnel drainage systems are prone to blockage due to the accumulation of garbage and debris during long-term use, affecting drainage efficiency and tunnel safety and stability, and lack effective early warning and cleaning mechanisms.

Method used

A tunnel drainage device was designed, comprising an early warning mechanism, a flow guiding mechanism, and a cleaning mechanism. Blockage warning is achieved through a float and a pressure sensor, and automatic cleaning is performed using gears and scrapers on the sealing seat to ensure smooth drainage.

Benefits of technology

It enables automatic early warning and timely cleaning of tunnel drainage devices, ensuring the stability and safety of the drainage system and improving drainage efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of noodle press, disclose a kind of tunnel drainage device, including inlet pipe, and the right side of inside of inlet pipe is provided with early warning mechanism, and the left side of inlet pipe is fixedly connected with transfer bin, and the inside of transfer bin front end is detachably installed with sealing seat, and the left side of inside of sealing seat is fixedly connected with first filter plate. The utility model can block garbage impurities in water by first filter plate on sealing seat, and make sundries stay inside transfer bin, while limit frame is arranged in inlet pipe, when water passes through from limit frame, then can make float ball float in limit frame, and float ball can move upward in limit frame when water level rises due to blockage in drainage device, when the top of float ball contacts pressure sensor, when pressure sensor receives pressure signal exceeding threshold value, it can be transmitted to external alarm by wireless transmission module, when staff can quickly disassemble and clean sealing seat.
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Description

Technical Field

[0001] This utility model relates to the field of tunnel drainage technology, specifically a tunnel drainage device. Background Technology

[0002] The tunnel drainage system is one of the "lifelines" of tunnel engineering. Its core function is to effectively remove seepage water from the surrounding rock and operational wastewater from inside the tunnel. Without an efficient and reliable drainage system, groundwater will continuously accumulate, generating enormous hydrostatic pressure, seriously threatening the safety of the tunnel structure, and potentially leading to lining cracking, leakage, or even collapse. Simultaneously, water accumulation on the road surface will form a water film, greatly reducing the friction between tires and the road surface, causing vehicles to skid.

[0003] Tunnel drainage systems primarily collect wastewater within the tunnel and discharge it outside the tunnel via gravity flow due to the tunnel's slope or pressure from a pumping station. Modern tunnel drainage pipes are mostly made of materials such as high-density polyethylene, which offer advantages such as corrosion resistance, high compressive strength, good flexibility, and long service life, ensuring the drainage system can operate stably in complex underground environments for extended periods.

[0004] However, the drainage device has a single function. With long-term use for drainage, garbage and debris in the tunnel water will accumulate inside the drainage pipe. At this time, it is impossible to promptly and effectively deal with the blockage inside the drainage pipe, which will affect the overall drainage effect of the tunnel and the safety and stability of vehicles inside the tunnel. Utility Model Content

[0005] The purpose of this invention is to provide a tunnel drainage device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tunnel drainage device, including a water inlet pipe, an early warning mechanism provided on the right side inside the water inlet pipe, a transfer chamber fixedly connected to the left side of the water inlet pipe, a sealing seat detachably installed inside the front end of the transfer chamber, a first filter plate fixedly connected to the left side inside the sealing seat, a first drain pipe fixedly connected to the left side of the transfer chamber, a second drain pipe fixedly connected to the center of the top of the transfer chamber, a flow guiding mechanism provided at the bottom end inside the second drain pipe, and a cleaning mechanism for auxiliary cleaning of the inner wall of the water inlet pipe.

[0007] Preferably, the early warning mechanism includes a limiting frame fixedly connected to the center position on the right side inside the water inlet pipe, a float ball vertically slidably connected inside the limiting frame, and a pressure sensor fixedly connected to the top of the limiting frame.

[0008] Preferably, the left and right sides inside the limiting frame are provided with grooves for water to flow through.

[0009] Preferably, the flow guiding mechanism includes a transmission port located at the center of the bottom of the second drain pipe, a second filter plate fixedly connected to the bottom of the transmission port, a rubber plug slidably connected inside the transmission port, a connecting plate fixedly connected to the top of the rubber plug, a water-passing groove formed inside the connecting plate, connecting rods fixedly connected to the left and right sides of the lower surface of the connecting plate, a limiting block that slides vertically inside the second drain pipe fixedly connected to the bottom of the connecting rod, and a spring fixedly connected to the top of the limiting block.

[0010] Preferably, the cleaning mechanism includes a rack fixed to the right side of the rear end of the sealing seat, a fixed rod fixed to the center position of the left side inside the water inlet pipe, a rotating shaft rotatably connected to the center position inside the fixed rod, a gear coaxially fixed to the left side of the rotating shaft, the upper surface of the gear meshing with the rack, and a scraper coaxially fixed to the right side of the rotating shaft.

[0011] Preferably, the outer side of the scraper is attached to the inner wall of the water inlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This tunnel drainage device features a sealing seat within a transfer chamber. A first filter plate on the sealing seat blocks debris and impurities in the water, keeping them inside the transfer chamber. A limiting frame is installed inside the inlet pipe. When water passes through the limiting frame, a float inside rises. As blockages occur within the drainage device, causing the water level to rise, the float moves upward within the limiting frame. When the top of the float contacts a pressure sensor, the sensor receives a pressure signal exceeding a threshold, which is transmitted wirelessly to an external alarm. At this point, workers can quickly disassemble and clean the sealing seat. Simultaneously, during the movement of the sealing seat, a rack on the sealing seat drives a gear to rotate. This gear, via a rotating shaft, drives a scraper inside the inlet pipe, quickly cleaning scale from the inner wall of the pipe. This ensures the stability and drainage effect of the drainage device in subsequent use.

[0014] 2. This type of tunnel drainage device, by installing a second drainage pipe at the top of the transfer chamber, allows for effective handling of large water flow rates within the transfer chamber. In this case, the water in the transfer chamber pushes the rubber plug at the bottom of the second drainage pipe upwards. At this point, the limiting block at the bottom of the rubber plug can compress the spring above. When the rubber plug removes its obstruction of the transmission port, the water in the transfer chamber can pass through the water channel on the connecting plate and be quickly discharged through the second drainage pipe, effectively diverting the drainage and further improving the functionality of the drainage device. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the overall structure of the sealing seat of this utility model;

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Inlet pipe; 101. Limiting frame; 102. Float; 103. Pressure sensor; 2. Transfer chamber; 3. Sealing seat; 301. First filter plate; 302. Rack; 4. Fixing rod; 401. Rotating shaft; 402. Gear; 403. Scraper; 5. First drain pipe; 6. Second drain pipe; 601. Transfer port; 602. Second filter plate; 7. Rubber plug; 701. Connecting plate; 702. Water passage trough; 703. Connecting rod; 704. Limiting block; 705. Spring. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4 As shown, this utility model has the following two specific embodiments.

[0023] Example 1

[0024] A tunnel drainage device includes an inlet pipe 1, an early warning mechanism on the right side inside the inlet pipe 1, a transfer chamber 2 fixedly connected to the left side of the inlet pipe 1, a sealing seat 3 detachably installed inside the front end of the transfer chamber 2, a first filter plate 301 fixedly connected to the left side inside the sealing seat 3, a first drain pipe 5 fixedly connected to the left side of the transfer chamber 2, a second drain pipe 6 fixedly connected to the center of the top of the transfer chamber 2, a flow guiding mechanism provided at the bottom end inside the second drain pipe 6, and the first filter plate 301 can block garbage and debris in the water in the transfer chamber 2.

[0025] The warning mechanism includes a limiting frame 101 fixedly attached to the center position on the right side inside the water inlet pipe 1. A float ball 102 is vertically slidably connected inside the limiting frame 101. A pressure sensor 103 is fixedly attached to the top of the limiting frame 101. The float ball 102 can float upward as the liquid level in the water inlet pipe 1 rises. When the float ball 102 touches the pressure sensor 103, the pressure sensor 103 can transmit a pressure signal to an external alarm for warning.

[0026] The left and right sides inside the limiting frame 101 are provided with channels for water to flow through.

[0027] The diversion mechanism includes a transmission port 601 located at the center of the bottom of the second drain pipe 6. A second filter plate 602 is fixedly connected to the bottom of the transmission port 601. A rubber plug 7 is slidably connected inside the transmission port 601. A connecting plate 701 is fixedly connected to the top of the rubber plug 7. A water passage groove 702 is formed inside the connecting plate 701. Connecting rods 703 are fixedly connected to the left and right sides of the lower surface of the connecting plate 701. A limiting block 704 that slides vertically inside the second drain pipe 6 is fixedly connected to the bottom of the connecting rod 703. A spring 705 is fixedly connected to the top of the limiting block 704. The second filter plate 602 can prevent garbage and debris from entering the interior of the second drain pipe 6. When the water flow in the transfer chamber 2 pushes the rubber plug 7 upward, the rubber plug 7 can drive the limiting block 704 at the bottom of the connecting rod 703 to squeeze the spring 705 through the connecting plate 701. Thus, the water flow in the transfer chamber 2 can be diverted into the interior of the second drain pipe 6 through the water passage groove 702 on the connecting plate 701.

[0028] Example 2

[0029] The difference from Embodiment 1 is that this embodiment discloses a cleaning mechanism for assisting in cleaning the inner wall of the water inlet pipe 1:

[0030] The cleaning mechanism includes a rack 302 fixed to the right rear end of the sealing seat 3, a fixed rod 4 fixed to the center of the left side inside the water inlet pipe 1, a rotating shaft 401 rotatably connected to the center of the fixed rod 4, a gear 402 coaxially fixed to the left side of the rotating shaft 401, the upper surface of the gear 402 meshing with the rack 302, and a scraper 403 coaxially fixed to the right side of the rotating shaft 401. When the sealing seat 3 is pulled outward, the rack 302 on the sealing seat 3 can push the gear 402 to rotate. At this time, the rotation of the gear 402 can drive the scraper 403 to rotate through the rotating shaft 401, so that the scraper 403 can quickly clean the inner wall of the water inlet pipe 1.

[0031] The outer side of the scraper 403 is attached to the inner wall of the water inlet pipe 1. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] In this embodiment, the water in the tunnel can move from right to left through the inlet pipe 1 and flow into the transfer chamber 2. At this time, the first filter plate 301 on the sealing seat 3 inside the transfer chamber 2 can block the debris in the water and keep the debris inside the transfer chamber 2. As the debris in the transfer chamber 2 gradually increases, the water level in the transfer chamber 2 and the inlet pipe 1 rises. At this time, the float 102 in the inlet pipe 1 can gradually move upward within the limit frame 101. When the top of the float 102 touches the pressure sensor 103, 103 can send a pressure signal to the external alarm for prompting, so that the staff can disassemble and clean the sealing seat 3. At the same time, the sealing seat 3 can quickly remove the debris inside, and the rack 302 on the sealing seat 3 can drive the gear 402 to rotate during the movement. At this time, the gear 402 drives the scraper 403 to rotate through the rotating shaft 401, so the scraper 403 can effectively clean the scale on the inner wall of the inlet pipe 1.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tunnel drainage device, comprising an inlet pipe (1), characterized in that: An early warning mechanism is provided on the right side inside the water inlet pipe (1). A transfer chamber (2) is fixedly connected to the left side of the water inlet pipe (1). A sealing seat (3) is detachably installed inside the front end of the transfer chamber (2). A first filter plate (301) is fixedly connected to the left side inside the sealing seat (3). A first drain pipe (5) is fixedly connected to the left side of the transfer chamber (2). A second drain pipe (6) is fixedly connected to the center of the top of the transfer chamber (2). A flow guiding mechanism is provided at the bottom of the second drain pipe (6). A cleaning mechanism is also included. The cleaning mechanism is used to assist in cleaning the inner wall of the water inlet pipe (1).

2. The tunnel drainage device according to claim 1, characterized in that: The warning mechanism includes a limiting frame (101) fixedly connected to the center position on the right side inside the water inlet pipe (1), a float (102) is vertically slidably connected inside the limiting frame (101), and a pressure sensor (103) is fixedly connected to the top inside the limiting frame (101).

3. A tunnel drainage device according to claim 2, characterized in that: The limiting frame (101) has grooves on the left and right sides inside for water to flow through.

4. A tunnel drainage device according to claim 1, characterized in that: The flow guiding mechanism includes a transmission port (601) located at the center of the bottom of the second drain pipe (6). A second filter plate (602) is fixedly connected to the bottom of the transmission port (601). A rubber plug (7) is slidably connected inside the transmission port (601). A connecting plate (701) is fixedly connected to the top of the rubber plug (7). A water groove (702) is opened inside the connecting plate (701). Connecting rods (703) are fixedly connected to the left and right sides of the lower surface of the connecting plate (701). A limiting block (704) that slides vertically inside the second drain pipe (6) is fixedly connected to the bottom of the connecting rod (703). A spring (705) is fixedly connected to the top of the limiting block (704).

5. A tunnel drainage device according to claim 1, characterized in that: The cleaning mechanism includes a rack (302) fixed to the right rear end of the sealing seat (3), a fixing rod (4) fixed to the center position of the left side inside the water inlet pipe (1), a rotating shaft (401) rotatably connected to the center position inside the fixing rod (4), a gear (402) coaxially fixed to the left side of the rotating shaft (401), the upper surface of the gear (402) meshing with the rack (302), and a scraper (403) coaxially fixed to the right side of the rotating shaft (401).

6. A tunnel drainage device according to claim 5, characterized in that: The outer side of the scraper (403) is attached to the inner wall of the water inlet pipe (1).