Tunnel drainage structure

Abstract

The utility model discloses a tunnel drainage structure, which relates to the technical field of underground drainage, and comprises an underground tunnel, the bottom of the inner wall of the underground tunnel is provided with two drainage grooves, the two drainage grooves are symmetrically distributed about the center line of the underground tunnel, the bottom of the inner wall of each drainage groove is provided with a floating device, and the floating devices are arranged on the inner wall of the underground tunnel. A plurality of branch pipes are fixedly mounted in the underground tunnel corresponding to the floating device, the branch pipes are symmetrically distributed about the center line of the underground tunnel, the ends, away from the drainage pipe, of the branch pipes are fixedly communicated with the drainage pipe, a plurality of filter plates are arranged in the drainage groove and horizontally distributed along the drainage groove, and the filter plates are arranged in the drainage groove. The bottom of the inner wall of the drainage groove is correspondingly provided with a fillet, when the water level in the drainage groove reaches a certain degree, the floating device is opened under the action of buoyancy, a large amount of water enters the drainage pipe through the main pipe and leaves the tunnel through the drainage pipe, and under the condition that the rainfall is large, the drainage capacity of the drainage groove is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground drainage, in particular to a tunnel drainage structure. Background Art

[0002] In the field of modern transportation, tunnels are important channels connecting different areas, and their safety and smoothness are crucial to urban transportation. However, in actual operation, tunnels often face challenges brought by extreme weather, especially drainage problems in heavy rain. Existing tunnel drainage systems usually use drainage gutters or drainage pipes to collect and guide water to the exit, but when the rainfall is heavy, the drainage capacity of these systems is often unable to cope with the challenge of large amounts of water accumulation in a short period of time, resulting in rainwater accumulation and inability to be discharged quickly. This not only affects driving safety in the tunnel and increases the risk of traffic accidents, but also causes potential damage to the tunnel structure itself, thereby affecting the normal use and life of the tunnel.

[0003] Although tunnels have achieved remarkable results in various fields, there are still urgent problems to be solved in the design and implementation of drainage systems. For example, under heavy rainfall conditions, the instantaneous drainage capacity of existing drainage channels is often unable to match the sudden increase in rainwater discharge demand due to relatively conservative design standards or failure to fully consider the increase in extreme rainfall events caused by climate change, resulting in rapid accumulation of rainwater on the tunnel pavement, affecting driving vision and road friction, and increasing the risk of traffic accidents. In addition, during the long-term operation of the tunnel, the drainage pipe may reduce the water-passing section due to siltation, damage, and other reasons, affecting the drainage efficiency. Utility Model Content

[0004] In order to solve the above technical problems, a tunnel drainage structure is provided to solve the above-mentioned problem of insufficient instantaneous drainage capacity.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A tunnel drainage structure comprises an underground tunnel, wherein two drainage grooves are provided at the bottom of the inner wall of the underground tunnel, the two drainage grooves are symmetrically distributed about the center line of the underground tunnel, a floating device is provided at the bottom of the inner wall of the drainage groove, a plurality of branch pipes are fixedly installed inside the underground tunnel corresponding to the floating device, the plurality of branch pipes are symmetrically distributed about the center line of the underground tunnel, and one end of the branch pipe away from the drainage pipe is fixedly connected to the drainage pipe.

[0007] Preferably, a plurality of filter plates are provided inside the drainage trough, and the plurality of filter plates are horizontally distributed along the drainage trough.

[0008] Preferably, the bottom of the inner wall of the drainage groove is correspondingly provided with a rounded corner.

[0009] Preferably, a warning line is provided on the inner wall of the drainage trough.

[0010] Preferably, the floating device includes a main board, a through groove is provided on the surface of the main board, a guide rod is provided inside the through groove, a spherical float is fixedly installed on one end of the guide rod, a fixing plate corresponding to the through groove is provided below the spherical float, a connecting mechanism is rotatably installed on the end of the guide rod away from the spherical float, and a water inlet groove is provided on the surface of the main board corresponding to the through groove.

[0011] Preferably, the connecting mechanism includes an active rod, one end of which is rotatably connected to the guide rod, a slider is rotatably installed on the middle part of the active rod, the slider is slidably connected to the main board, a top rod is rotatably installed on the end of the active rod away from the slider, and a sealing plate corresponding to the water inlet groove is rotatably installed on the end of the top rod.

[0012] Preferably, the water inlet trough is connected to the branch pipe.

[0013] Compared with the prior art, the advantages of the utility model are as follows: the utility model is provided with a floating device, a branch pipe and a drainage pipe. When the rainwater is small, part of the rainwater leaves the tunnel in sequence through the water inlet trough, the branch pipe and the drainage pipe in the floating device. Under heavy rain, the floating device opens under the action of buoyancy, and a large amount of water enters the drainage pipe through the branch pipe and leaves the tunnel through the drainage pipe, thereby expanding the instantaneous drainage capacity of the drainage trough and allowing the tunnel to be used normally; the utility model is provided with rounded corners and a filter plate. The filter plate filters large impurities, and the rounded corners prevent fine impurities from accumulating in the drainage trough. When water flows through the drainage trough, fine impurities are flushed by the water flow, and the fine impurities leave the tunnel along with the water flow, thereby reducing the probability of impurities accumulating in the drainage trough and improving the drainage efficiency of the drainage trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of middle C;

[0016] Figure 3 for Figure 1 A partial enlarged view of middle A;

[0017] Figure 4 It is a cross-sectional view of the floating device in the utility model;

[0018] Figure 5 for Figure 4 A partial enlarged view of B.

[0019] The numbers in the figure are: 1. underground tunnel; 2. drainage trough; 3. floating device; 4. branch pipe; 5. drainage pipe; 6. filter plate; 7. fillet; 8. warning line; 9. main board; 10. through groove; 11. guide rod; 12. spherical floating object; 13. fixed plate; 14. connecting mechanism; 15. water inlet trough; 16. active rod; 17. slider; 18. push rod; 19. sealing plate. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] Reference Figure 1-3 As shown, a tunnel drainage structure includes an underground tunnel 1. Two drainage grooves 2 are opened at the bottom of the inner wall of the underground tunnel 1. The two drainage grooves 2 are symmetrically distributed about the center line of the underground tunnel 1. Rainwater is collected through the drainage grooves 2. A floating device 3 is provided at the bottom of the inner wall of the drainage groove 2. A plurality of branch pipes 4 are fixedly installed inside the underground tunnel 1 corresponding to the floating device 3. The plurality of branch pipes 4 are symmetrically distributed about the center line of the underground tunnel 1. One end of the branch pipe 4 away from the drainage pipe 5 is fixedly connected to the drainage pipe 5. When too much water accumulates in the drainage groove 2, a large amount of accumulated water enters the drainage pipe 5 through the floating device 3 and the branch pipe 4 and is discharged.

[0022] As shown in the figure, a plurality of filter plates 6 are provided inside the drainage trough 2, and the plurality of filter plates 6 are horizontally distributed along the drainage trough 2. The filter plates 6 filter the accumulated water, and adjacent filter plates 6 abut against each other to prevent impurities from entering the drainage trough 2 through the gaps between the filter plates 6.

[0023] As shown in the figure, the bottom of the inner wall of the drainage trough 2 is provided with a corresponding rounded corner 7 to prevent impurities from accumulating at the angle formed between the vertical surface and the horizontal surface of the drainage trough 2, and at the same time make the drainage trough 2 more beautiful.

[0024] As shown in the figure, a warning line 8 is set on the inner wall of the drainage ditch 2. When the water level is lower than the warning line 8, the car can safely pass through the underground tunnel 1. When the water level is higher than the warning line 8, the inspectors will close the underground tunnel 1 to prevent landslides when the car passes through.

[0025] As shown in the figure, the floating device 3 includes a main board 9, a through groove 10 is provided on the surface of the main board 9, a guide rod 11 is provided inside the through groove 10, a spherical float 12 is fixedly installed on one end of the guide rod 11, a fixing plate 13 corresponding to the through groove 10 is provided below the spherical float 12, a connecting mechanism 14 is rotatably installed on the end of the guide rod 11 away from the spherical float 12, and a water inlet groove 15 is provided on the surface of the main board 9 corresponding to the through groove 10. When the accumulated water reaches the height of the warning line 8, the spherical float 12 is affected by the buoyancy, and the spherical float 12 drives the fixed plate 13 on the guide rod 11 to leave the through groove 10, so that a large amount of accumulated water enters the drain pipe 5 through the through groove 10 and the branch pipe 4 in turn, and leaves through the drain pipe 5.

[0026] As shown in the figure, the connecting mechanism 14 includes an active rod 16, one end of which is rotatably connected to the guide rod 11, a slider 17 is rotatably installed in the middle of the active rod 16, and the slider 17 is slidably connected to the main board 9. An end of the active rod 16 away from the slider 17 is rotatably installed with a push rod 18, and a sealing plate 19 corresponding to the water inlet groove 15 is rotatably installed at the end of the push rod 18. The guide rod 11 drives one end of the active rod 16 to move upward, and the active rod 16 drives the middle slider 17 to move while rotating around the slider 17. The other end of the active rod 16 pulls the push rod 18 downward while driving the push rod 18 to rotate around the sealing plate 19. When the floating device 3 is fully opened, the sealing plate 19 abuts against the water inlet groove 15.

[0027] As shown in the figure, the water inlet trough 15 is connected with the branch pipe 4. When there is a small amount of water in the drainage trough 2, the water enters the water inlet trough 15 and flows along the top rod 18 into the branch pipe 4.

[0028] Working principle: when the accumulated water in the drain trough 2 does not reach the warning line 8, part of the accumulated water in the drain trough 2 leaves through the drain trough 2, and the other part enters the water inlet trough 15, enters the branch pipe 4 and the drain pipe 5 along the direction of the top rod 18, and leaves the equipment through the drain pipe 5. When the accumulated water in the drain trough 2 reaches or exceeds the warning line 8, part of the accumulated water leaves through the drain trough 2. Under the action of the buoyancy of the spherical float 12, the spherical float 12 drives the fixed plate 13 on the guide rod 11 to leave the through groove 10. At the same time, the guide rod 11 drives one end of the active rod 16 to move upward, and the active rod 16 drives the middle slider 17 to move while rotating around the slider 17. The other end of the active rod 16 pulls the top rod 18 downward while driving the top rod 18 to rotate around the sealing plate 19, so that the sealing plate 19 enters the water inlet trough 15. A large amount of accumulated water enters the drain pipe 5 through the branch pipe 4 and leaves through the drain pipe 5.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tunnel drainage structure, comprising an underground tunnel (1), characterized in that: Two drainage grooves (2) are provided at the bottom of the inner wall of the underground tunnel (1), and the two drainage grooves (2) are symmetrically distributed about the center line of the underground tunnel (1). A floating device (3) is provided at the bottom of the inner wall of the drainage groove (2), and a plurality of branch pipes (4) are fixedly installed inside the underground tunnel (1) corresponding to the floating device (3). The plurality of branch pipes (4) are symmetrically distributed about the center line of the underground tunnel (1), and one end of the branch pipe (4) away from the drainage pipe (5) is fixedly connected to the drainage pipe (5).

2. A tunnel drainage structure according to claim 1, characterized in that: A plurality of filter plates (6) are arranged inside the drainage trough (2), and the plurality of filter plates (6) are horizontally distributed along the drainage trough (2).

3. A tunnel drainage structure according to claim 1, characterized in that: The bottom of the inner wall of the drainage groove (2) is correspondingly provided with a rounded corner (7).

4. A tunnel drainage structure according to claim 1, characterized in that: The inner wall of the drainage trough (2) is provided with a warning line (8).

5. A tunnel drainage structure according to claim 1, characterized in that: The floating device (3) comprises a main board (9), a through groove (10) is provided on the surface of the main board (9), a guide rod (11) is provided inside the through groove (10), a spherical floating object (12) is fixedly mounted on one end of the guide rod (11), a fixing plate (13) corresponding to the through groove (10) is provided below the spherical floating object (12), a connecting mechanism (14) is rotatably mounted on one end of the guide rod (11) away from the spherical floating object (12), and a water inlet groove (15) is provided on the surface of the main board (9) corresponding to the through groove (10).

6. A tunnel drainage structure according to claim 5, characterized in that: The connecting mechanism (14) comprises an active rod (16), one end of which is rotatably connected to the guide rod (11), a slider (17) is rotatably mounted on the middle of the active rod (16), the slider (17) is slidably connected to the main board (9), a push rod (18) is rotatably mounted on one end of the active rod (16) away from the slider (17), and a sealing plate (19) corresponding to the water inlet groove (15) is rotatably mounted on the end of the push rod (18).

7. A tunnel drainage structure according to claim 6, characterized in that: The water inlet trough (15) is in communication with the branch pipe (4).

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