Drainage device for civil engineering tunnel

Abstract

The invention relates to a drainage device for a civil engineering tunnel, and belongs to the technical field of civil engineering drainage. The drainage device comprises a drainage box body, a water inlet pipe is arranged at the top of the drainage box body, a drainage pipe is arranged at the bottom of the side wall of the drainage box body, a filtering mechanism and a drainage mechanism are arranged in the drainage box body, the drainage mechanism is arranged at the drainage pipe, a collection box body is arranged on one side of the drainage box body, and the interior of the collection box body is communicated with the drainage box body. A collecting mechanism for collecting filtered matters is arranged in the filter chamber; the filtering mechanism comprises a first filtering plate obliquely arranged towards the collecting mechanism, a rotating paddle set rotationally installed on the drainage box body and a knocking assembly which is in transmission connection with the rotating paddle set and used for knocking the first filtering plate. Through reasonable design of the drainage device, the problem of water accumulation in the tunnel can be effectively solved, and slippery road surface and reduced visibility caused by water accumulation are avoided, so that the traffic capacity and safety of the road are improved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and in particular to a drainage device for civil engineering tunnels. Background Art

[0002] Civil engineering is a general term for the science and technology of building various land engineering facilities. It refers to the materials, equipment, survey, design, construction, maintenance, repair and other technical activities used, as well as the objects of engineering construction. When constructing a civil engineering tunnel, drainage devices are required for drainage.

[0003] The Chinese utility model patent with the authorization announcement number CN216278000U discloses a drainage device for civil engineering tunnels, which includes a water level box, a movable baffle, a lifting mechanism, a linkage assembly and a baffle moving mechanism; a water inlet is provided at one end of the water level box, a movable baffle is provided at the other end, a lifting mechanism is provided at the top of the water level box, a linkage assembly is provided on the water level box, one end of the linkage assembly is connected to the lifting mechanism, and the other end is connected to the baffle moving mechanism, and the baffle moving mechanism is provided on the movable baffle. The baffle moving mechanism controls the increase and decrease of the water outlet, thereby controlling the water output.

[0004] Regarding the above-mentioned related technologies, although the size of the water outlet can be adjusted in time according to the water flow conditions, the filtered matter intercepted by the filter is accumulated on one side of the filter, which is relatively cumbersome to handle. Summary of the invention

[0005] In order to improve the processing capacity of the drainage device for filtered materials, the present application provides a drainage device for a civil engineering tunnel.

[0006] The present application provides a drainage device for a civil engineering tunnel using the following technical solution: A drainage device for a civil engineering tunnel comprises a drainage box, a water inlet pipe is arranged on the top of the drainage box, a drainage pipe is arranged on the bottom of the side wall, a filtering mechanism and a drainage mechanism are arranged in the drainage box, the drainage mechanism is arranged at the drainage pipe, a collecting box is arranged on one side of the drainage box, the collecting box is connected to the drainage box, and a collecting mechanism for collecting filtered materials is arranged inside; the filtering mechanism comprises a first filter plate, a rotating paddle group rotatably mounted on the drainage box, and a knocking assembly which is transmission-connected to the rotating paddle group and is used to strike the first filter plate.

[0007] By adopting the above technical solution, the water in the tunnel enters the drainage box through the water inlet pipe. The filter mechanism is set up, and the filter material is blocked at the first filter plate. The filter material is obliquely transported to the collection mechanism along the first filter plate, and the collection mechanism collects the filter material in a centralized manner, which is convenient for the staff to handle the filter material. The knocking component strikes the first filter plate, which can knock off the fine impurities adhering to the first filter plate, reducing the probability of blockage of the first filter plate. The overall drainage device effectively solves the problem of water accumulation in the tunnel, avoids slippery road surface and reduced visibility caused by water accumulation, thereby improving the road's traffic capacity and safety. At the same time, the drainage device has a simple structure, is quick to install and convenient to construct, and can significantly shorten the construction period of the tunnel project.

[0008] Optionally, the first filter plate includes a horizontal plate and a vertical plate, the horizontal plate has a guide slope inclined downward toward the collection mechanism, the first filter plate is provided with a filter arc plate at the inclined bottom end of the guide slope, the filter arc plate is provided with a guide inclined plate guiding the filter material to the collection mechanism, and the vertical plate extends downward to the bottom of the collection mechanism.

[0009] By adopting the above technical solution, the arrangement of the filter arc plate, the first filter plate and the second filter plate can realize layered screening of the filtered material. Fine impurities such as mud and sand are transported along the guide slope and pass through the filter arc plate, and then transported to the bottom of the collection box along the second filter plate. Larger impurities are transported along the guide slope to the filter arc plate, and then pass over the vertical plate and fall into the collection mechanism, with high screening efficiency.

[0010] Optionally, the rotating paddle group includes a first rotating paddle arranged corresponding to the water inlet pipe, a second rotating paddle arranged on the inner side of the filter arc plate, and a first transmission member connecting the first rotating paddle and the second rotating paddle.

[0011] By adopting the above technical scheme, the structural composition of the rotating paddle assembly is disclosed, and the first rotating paddle and the water inlet pipe are correspondingly arranged, so that when water enters the drainage box, the water falls on the first rotating paddle, driving the first rotating paddle to rotate, and the first rotating paddle drives the second rotating paddle to rotate through the first rotating member. The arrangement of the rotating paddle assembly improves the fluidity of water flow in the drainage box, and the second rotating paddle can move the coarse filtered matter moved to the filter arc plate to the collection mechanism, further improving the screening efficiency.

[0012] Optionally, the knocking assembly includes a knocking bracket fixed to the drainage box, a knocking drive rod rotatably mounted on the knocking bracket, a knocking rod rotatably mounted on the knocking bracket and limitedly engaged with the knocking drive rod, a second transmission member is arranged between the knocking drive rod and the first rotating paddle, and the knocking drive rod is rotated via the second transmission member.

[0013] By adopting the above technical solution, the structural composition of the knocking component is disclosed. The knocking drive rod realizes the transmission with the first rotating paddle through the second transmission member, that is, the second rotating paddle and the knocking component are driven simultaneously by the knocking driving member. The structure is simplified, no additional independent power source is required, the composite utilization of energy is realized, the synchronous start of the knocking component and the rotating paddle component is ensured, the action timing is accurately matched, and the adjustment is synchronized with the water flow velocity.

[0014] Optionally, the knocking drive rod includes a driving main rod, a connecting disk arranged on the driving main rod, and a driving curved rod arranged on the connecting disk and staggered with the driving main rod. The knocking rod is provided with a strip-shaped driving hole for inserting the driving curved rod.

[0015] By adopting the above technical solution, the structural composition of the knocking drive rod is specifically disclosed. The driving main rod and the driving curved rod are connected through the connecting disk, and the driving main rod and the driving curved rod are eccentrically arranged, so that when the driving main rod rotates, the knocking rod that slides and cooperates with the driving curved rod can be driven to perform reciprocating up and down movements.

[0016] Optionally, the collection mechanism includes a collection shell slidably installed in the collection box body, a collection filter plate arranged in the collection shell, and lifting handles arranged on opposite sides of the collection shell. The collection box body is provided with an installation groove for installing the collection shell, and a handle groove for the lifting handle to be inserted at the top of the installation groove.

[0017] By adopting the above technical solution, when the coarse filter passes through the vertical plate and slides down, it is received by the collection shell, and the filter can be filtered again under the action of the collection filter plate, so that the fine filter passes through the collection filter plate and falls to the bottom of the collection box body.

[0018] Optionally, the drainage mechanism includes a drainage baffle for blocking the drain pipe and a floating plate connected to the drainage baffle. The drainage box body is provided with a floating plate lifting groove for slidably installing the floating plate.

[0019] By adopting the above technical solution, with the setting of the drainage mechanism, the floating plate can rise and fall with the water level height in the drainage box body, realizing the blocking situation of the drainage baffle for the drain pipe, and then adjusting the drainage volume in real time.

[0020] Optionally, a water collecting pipe corresponding to the drain pipe is arranged in the drain box body. A water collecting tank body is arranged at the bottom of the filter arc plate of the drain box body. One end of the water collecting pipe corresponds to the output end of the drain pipe, and the other end corresponds to the top of the water collecting tank body. The water collecting tank body is provided with a water curtain through hole for water flow to pass through, and a water collecting cover plate is rotatably arranged at the water curtain through hole of the water collecting tank body; the water collecting tank body is provided with a rotating assembly for driving the water collecting cover plate to rotate. The rotating assembly includes a rotating driving part, a connecting rod assembly connecting the rotating driving part and the water collecting cover plate, and a water level sensor for detecting the water level in the water collecting tank.

[0021] By adopting the above technical solution, part of the water in the water inlet pipe enters the water collecting pipe, and the water collecting pipe conveys the water to the water collecting tank body. When the water level in the water collecting tank body reaches a certain height, the water level sensor transmits the information to the rotating driving part and drives the water collecting cover plate to rotate through the connecting rod assembly, so that the water in the water collecting tank body falls along the first filter plate to form a water curtain, and the sediment filter adhered to the first filter plate is conveyed downward.

[0022] Optionally, a sliding column body slidably installed in the collecting shell is arranged on the side wall of the collecting filter plate. The collecting shell has a collecting chute for installing the sliding column body, and an elastic member is arranged in the collecting chute.

[0023] By adopting the above technical solution, the collecting filter plate is slidably installed in the collecting chute through the sliding column body. When the coarse filter falls on the collecting filter plate, the impact of the filter on the collecting filter plate under the action of gravity causes the collecting filter plate to shake to a certain extent, which improves the falling of the fine filter on the collecting filter plate to the bottom of the collecting box body.

[0024] Optionally, a precipitation collecting plate is further arranged at the bottom of the collecting shell of the collecting box body. A precipitation tank is arranged on the precipitation collecting plate. The top of the precipitation plate has a collecting inclined surface inclined towards the precipitation tank. An installation seat is arranged at the bottom of the precipitation collecting plate, and a non-woven fabric rod extending upward to the water collecting tank is arranged on the installation seat.

[0025] By adopting the above technical solution, the arrangement of the precipitation collecting plate enables the water and fine filter passing through the collecting filter plate to fall on the precipitation collecting plate and converge in the precipitation tank along the collecting inclined surface. The sediment filter precipitates at the bottom of the precipitation tank, and the non-woven fabric rod can convey the water in the precipitation tank to the bottom of the precipitation plate, realizing the separation of water and fine filter.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: Through the arrangement of the collection mechanism and the filtration mechanism in the present application, the filter is blocked on the first filter plate, and the filter is inclinedly conveyed along the first filter plate to the collection mechanism, and the collection mechanism centrally collects the filter, which is convenient for the staff to process the filter; Through the cooperation of the rotating paddle assembly and the knocking assembly, this application enables the filtering structure to require no additional independent power source, and while screening the filter, it knocks on the first filter plate. Through the settings of the water collecting tank body and the water collecting cover plate, after the water collecting cover plate is opened, the water in the water collecting tank body falls along the first filter plate to form a water curtain, flushing the sediment filter adhered to the first filter plate onto the precipitation collection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the schematic diagram of the overall structure of Embodiment 1.

[0028] Figure 2 is the schematic sectional view of Embodiment 1.

[0029] Figure 3 is the schematic diagram of the structure of the filtering mechanism of Embodiment 1.

[0030] Figure 4 is Figure 3 the partial enlarged schematic view at A in

[0031] Figure 5 is the schematic diagram of the structure of the knocking assembly of Embodiment 1.

[0032] Figure 6 is the schematic diagram of the structure of the collection mechanism of Embodiment 1.

[0033] Figure 7 is the schematic diagram of the structure of the drainage mechanism of Embodiment 1.

[0034] Figure 8 is the schematic sectional view of Embodiment 2.

[0035] Figure 9 is Figure 8 the partial enlarged schematic view at B in

[0036] Figure 10 is the schematic sectional view of the precipitation collection plate of Embodiment 2.

[0037] Description of the reference numerals: 1. Drainage box body; 11. Water inlet pipe; 12. Drain pipe; 13. Drainage hole; 14. Float lifting groove; 15. Water collecting pipe; 2. Collection box body; 21. Positioning groove; 22. Handle groove; 23. Shielding cover plate; 3. Filter mechanism; 31. First filter plate; 311. Horizontal plate; 3111. Guide inclined plane; 312. Vertical plate; 32. Rotating paddle group; 321. First rotating paddle; 322. Second rotating paddle; 323. First transmission member; 3231. First transmission wheel; 3232. Belt; 33. Knocking assembly; 331. Knocking bracket; 332. Knocking driving rod; 3321. Driving main rod; 3322. Connecting plate; 3323. Driving curved rod; 333. Knocking rod; 334. Second transmission member; 3331. Strip-shaped driving hole; 34. Filter arc plate; 341. Guide inclined plate; 4. Drainage mechanism; 41. Drainage baffle; 42. Float plate; 43. L-shaped bracket; 5. Collection mechanism; 51. Collection shell; 511. Collection sliding groove; 512. Elastic member; 52. Collection filter plate; 521. Sliding column body; 53. Pulling handle; 54. Mounting seat; 55. Non-woven fabric rod; 56. Connecting pipe; 6. Water collecting tank body; 61. Water curtain through hole; 62. Water collecting cover plate; 621. Sealing elastic ring; 63. Rotating assembly; 631. Rotating driving member; 632. Link member; 633. Water level sensor; 7. Precipitation collection plate; 71. Precipitation tank; 72. Collection inclined surface. Detailed implementation manners

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the disclosed embodiments of the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the gravity direction. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0039] The following will further Figure 1-10 describe the present application in detail.

[0040] The embodiment of the present application discloses a drainage device for a civil engineering tunnel.

[0041] Embodiment 1: Refer to Figure 1, A drainage device for civil engineering tunnels, including a drainage box body 1 and a collection box body 2. The side walls of the drainage box body 1 and the collection box body 2 both have openings communicating with the inner cavity, and the two box bodies are fixedly sealed at the side wall openings, so that the drainage box body 1 and the collection box body 2 communicate with each other.

[0042] A water inlet pipe 11 is arranged at the top of the drainage box body 1, and the water inlet pipe 11 is used to receive water from the blind pipe in the tunnel. A drain pipe 12 is arranged at the bottom of the side wall of the drainage box body 1 away from the collection box body 2, and is used to discharge the treated tunnel water flow.

[0043] A filtering mechanism 3 and a drainage mechanism 4 are arranged in the drainage box body 1 along the height direction, and a collection mechanism 5 is arranged in the collection box body 2. The water in the tunnel is filtered through the filtering mechanism 3, the filtered water falls to the bottom of the drainage box body 1, and finally is discharged through the drainage mechanism 4. The filter residues blocked by the filtering mechanism 3 are transported to the collection mechanism 5 for collection. In this application, the filter residues are divided into coarse filter residues and fine filter residues according to volume size. The coarse filter residues are large stones, and the fine filter residues are small stones and sediment.

[0044] The filtering mechanism 3 includes an inclined first filter plate 31, a rotating paddle group 32 rotatably installed in the drainage box body 1, and a knocking component 33 for knocking the first filter plate 31.

[0045] The first filter plate 31 is integrally L-shaped, and includes a horizontal plate 311 and a vertical plate 312. The outer side walls of the horizontal plate 311 and the vertical plate 312 are fixedly connected to the inner wall of the drainage box body 1, and the bottom of the vertical plate 312 extends to the inner cavity bottom wall of the drainage box body 1. The top of the horizontal plate 311 has a guiding inclined surface 3111 inclined downward towards the collection mechanism 5, so that the coarse filter residues falling on the first filter plate 31 can be transported to the collection mechanism 5 along the guiding inclined surface 3111.

[0046] The first filter plate 31 is provided with a filtering arc plate 34 at the inclined bottom end of the guiding inclined surface 3111. The filtering arc plate 34 is fixedly connected to the horizontal plate 311. The filtering arc plate 34 plays a role in blocking the coarse filter residues, but the fine filter residues can pass through the filtering arc plate 34. Among them, a guiding inclined plate 341 is further arranged on the filtering arc plate 34 on the side close to the collection box body 2, and the guiding inclined surface 3111 plate is inclined downward, so that the coarse filter residues can accurately fall into the collection mechanism 5.

[0047] The rotating paddle group 32 includes a first rotating paddle 321 corresponding to the water inlet pipe 11, a second rotating paddle 322 arranged inside the filtering arc plate 34, and a first transmission member 323 connecting the first rotating paddle 321 and the second rotating paddle 322. The first rotating paddle 321 and the second rotating paddle 322 are arranged in parallel, and the inner wall of the drainage box body 1 has rotating grooves for the two ends of the first rotating paddle 321 and the second rotating paddle 322 to be rotatably installed.

[0048] Rotating paddle blades are fixedly installed on both the first rotating paddle 321 and the second rotating paddle 322, and the axes of the two rotating paddles are parallel to the axis of the filter arc plate 34. Among them, the rotating paddle blades of the first rotating paddle 321 correspond to the inlet of the water inlet pipe 11, so that the water entering the drainage box body 1 can drive the first rotating paddle 321 to rotate. The rotating paddle blades of the second rotating paddle 322 are used to dial the coarse filter materials that slide to the inner side of the filter arc plate 34 to the collection mechanism 5. Therefore, the end of the rotating paddle blade of the second rotating paddle 322 is in close contact with the inner side of the filter arc plate 34. The two rotating paddles are driven through the first transmission member 323. The first rotating paddle 321 is the driving paddle, and the second rotating paddle 322 is the driven paddle.

[0049] The first transmission member 323 is arranged outside the drainage box body 1. In this embodiment, the first transmission member 323 is a belt drive, which includes a first transmission wheel 3231 arranged at the ends of the first rotating paddle 321 and the second rotating paddle 322 and a belt 3232 connecting the two sets of transmission wheels.

[0050] The knocking assembly 33 includes a knocking bracket 331 fixed to the drainage box body 1, a knocking driving rod 332 rotatably installed on the knocking bracket 331, and a knocking rod 333 rotatably installed on the knocking bracket 331. The knocking bracket 331 is a U-shaped bracket with a horizontal opening, and its length direction is parallel to the axis of the rotating paddle. The two sides are respectively fixed to the inner side wall of the drainage box body 1. The knocking bracket 331 is located on the side of the bottom of the first filter plate 31 away from the filter arc plate 34, and the U-shaped opening of the knocking bracket 331 faces the filter arc plate 34.

[0051] The knocking driving rod 332 includes a driving main rod 3321, a connecting disc 3322, and a driving curved rod 3323. The driving main rod 3321 is rotatably matched with the knocking bracket 331. The connecting disc 3322 is a disc member, and one side end face thereof is coaxially fixed to the end of the driving main rod 3321. The end of the driving curved rod 3323 is fixed to the other side end face of the connecting disc 3322, and the driving curved rod 3323 and the connecting disc 3322 are eccentrically arranged. The knocking rod 333 is integrally a strip-shaped rod, and a strip-shaped driving hole 3331 for the driving curved rod 3323 to horizontally pass through is provided in its length direction.

[0052] When the knocking driving rod 332 rotates, it can drive the knocking rod 333 to swing up and down reciprocally, and the end of the knocking rod 333 repeatedly knocks the first filter plate 31 to disperse the fine filter materials adhered to the first filter plate 31. In this embodiment, there are two sets of knocking rods 333 on the knocking bracket 331, and both sets of knocking rods 333 are swung through a set of driving curved rods 3323.

[0053] The driving main rod 3321 and the first rotating paddle 321 are driven through the second transmission member 334. The second transmission member 334 is also located outside the drainage box body 1, and one end of the driving main rod 3321 away from the connecting disc 3322 passes through the drainage box body 1. In this embodiment, the transmission principle of the second transmission member 334 is the same as that of the first transmission member 323. The first rotating paddle 321 is provided with a second transmission wheel coaxially fixed with the first transmission wheel 3231, and the end of the driving main rod 3321 is provided with a second transmission wheel.

[0054] The collecting mechanism 5 includes a collecting shell 51 slidably and liftably installed in the collecting box body 2, a collecting filter plate 52 arranged on the inner wall of the collecting shell 51, and lifting handles 53 arranged on opposite sides of the collecting shell 51. The collecting filter plate 52 receives the coarse filter residues from the vertical plate 312, and the fine filter residues can pass through the collecting filter plate 52. A positioning groove 21 for installing the collecting shell 51 is provided in the collecting box body 2. The bottom of the collecting shell 51 abuts against the bottom wall of the positioning groove 21. The whole collecting shell 51 is located in the middle area of the collecting box body 2 and is located below the vertical plate 312. There is a gap between the side wall of the collecting shell 51 and the vertical plate 312.

[0055] Handle grooves 22 for the lifting handles 53 to be inserted are provided on opposite side walls of the collecting box body 2. The top of the collecting box body 2 is detachably installed with a shielding cover plate 23, and two handles for the staff to hold are arranged on the top of the shielding cover plate 23. After the drainage device is used for a period of time, it is necessary to process the filter residues in the collecting box body 2. The staff removes the shielding cover plate 23, takes out the collecting shell 51 from the collecting box body 2 through the lifting handles 53, processes the coarse filter residues on the collecting filter plate 52, and then processes the fine filter residues at the bottom of the collecting box body 2.

[0056] The drainage mechanism 4 includes a drainage baffle 41 arranged at the drain pipe 12 and a float plate 42 connected to the drainage baffle 41. The drainage box body 1 has a drainage hole 13 communicating with the drain pipe 12, and the drainage baffle 41 slides in the drainage hole 13 in the height direction. The drainage box body 1 has a float lifting groove 14 communicating with the inner top wall of the drainage hole 13, and the float lifting groove 14 is arranged in the height direction.

[0057] The float plate 42 is made of a light corrosion-resistant material. The float plate 42 and the drainage baffle 41 are connected through an L-shaped bracket 43, and the whole float plate 42 is located on the top of the drainage baffle 41. The undulation of the float plate 42 is used to control the shielding situation of the drainage baffle 41 for the drainage hole 13, and thus control the amount of drainage.

[0058] The implementation principle of a drainage device for a civil engineering tunnel in an embodiment of the present application is as follows: The water in the tunnel enters through the water inlet pipe 11, and the water strikes the first rotating paddle 321, driving the first rotating paddle 321 to rotate. The first rotating paddle 321 drives the second rotating paddle 322 and the knocking rod 333 to rotate; the filter substances are conveyed downward along the guiding inclined surface 3111 to one side of the filter arc plate 34, and the coarse filter substances are dialed to the collection shell 51 under the action of the second rotating paddle 322, and the fine filter substances pass through the filter arc plate 34 and are conveyed along the vertical plate 312 to the inner cavity bottom wall of the collection box 2.

[0059] Embodiment 2: Refer to Figure 8 and Figure 9 To further process the fine filter substances in the collection box 2, two groups of water collecting pipes 15 corresponding to the water inlet pipe 11 are arranged in the drainage box 1 in the present application. The filter arc plate 34 and the second rotating paddle 322 are provided with relief grooves for the water collecting pipes 15 to pass through. A water collecting tank body 6 is fixedly installed on the bottom wall of the filter arc plate 34, and the water collecting tank body 6 is located on one side of the vertical plate 312 facing the collection mechanism 5. The water collecting tank body 6 has a groove structure with an open top, and a water collecting cavity for collecting water flow is formed between its side wall and the side wall of the vertical plate 312. A filter screen is also installed on the top of the water collecting tank body 6. One end of the water collecting pipe 15 corresponds to the output end of the water inlet pipe 11, and the other end corresponds to the top of the water collecting tank body 6. A filter screen is installed at the opening of the input end of the water collecting pipe 15 so that the coarse filter substances will not enter the water collecting pipe 15, and the water collecting pipe 15 can convey part of the tunnel water to the water collecting cavity.

[0060] The bottom of the water collecting tank body 6 has a water curtain through hole 61, and a water collecting cover plate 62 is rotatably installed at the water curtain through hole 61, and the water curtain through hole 61 is sealed and closed through the water collecting cover plate 62. Sealing elastic rings 621 are uniformly arranged on the outer side wall of the water collecting cover plate 62, and the side walls of the water collecting tank body 6 and the vertical plate 312 have sealing grooves for cooperating with the sealing elastic rings 621. When the water collecting cover plate 62 closes the water curtain through hole 61, the sealing elastic rings 621 are in a state of extrusion deformation, and the water curtain through hole 61 is in a closed state.

[0061] A rotating assembly 63 for driving the water collecting cover plate 62 to rotate is arranged on the water collecting tank body 6. The rotating assembly 63 includes a rotating driving member 631 arranged on the outer side wall of the water collecting tank body 6, a connecting rod member 632 connecting the rotating driving member 631 and the water collecting cover plate 62, and a water level sensor 633 arranged in the water collecting tank body 6. The rotating driving member 631 is a micro motor, the connecting rod member 632 is a three-link structure, one end of the connecting rod member 632 is hinged to the outer side wall of the water collecting cover plate 62, and the other end is fixed to the output shaft of the rotating driving member 631. The water level sensor 633 is electrically connected to the rotating driving member 631. When the water level sensor 633 detects the water level, it sends a signal to the rotating driving member 631, driving the rotating driving member 631 to start, so that the water collecting cover plate 62 rotates away from the first filter plate 31.

[0062] Reference Figure 8 and Figure 10 The collection filter plate 52 is slidably installed in the collection housing 51. Sliding columns 521 are provided at the four corners of the outer side wall of the collection filter plate 52. The collection housing 51 has collection sliding grooves 511 that cooperate with the sliding columns 521, and elastic members 512 that abut against the sliding columns 521 are provided in the collection sliding grooves 511. The elastic members 512 can be spring members, elastic rings, etc.

[0063] A precipitation collection plate 7 is installed at the bottom of the collection housing 51 of the collection box body 2. The cross-sectional size of the precipitation collection plate 7 adapts to the horizontal cross-section of the collection box body 2. A precipitation tank 71 is provided in the middle area of the precipitation collection plate 7. The precipitation tank 71 is a rectangular tank. The top of the precipitation collection plate 7 has a collection inclined surface 72 that inclines towards the precipitation tank 71. The fine filter residues on the vertical plate 312 fall on the precipitation collection plate 7 under the action of the water curtain. At the same time, the fine filter residues passing through the collection filter plate 52 also fall on the precipitation collection plate 7, and then all converge in the precipitation tank 71 along the collection inclined surface 72. After a certain period of time, the fine filter residues precipitate at the bottom.

[0064] An absorption structure for absorbing the water in the precipitation tank 71 is provided at the bottom of the precipitation collection plate 7. The absorption structure includes a mounting seat 54 and a non-woven fabric rod 55 provided on the mounting seat 54. The non-woven fabric rod 55 passes upward through the bottom of the precipitation tank 71. Non-woven fabric for absorbing moisture is installed in the non-woven fabric rod 55. The non-woven fabric protrudes from the top of the non-woven fabric rod 55. Through holes for water to flow out are provided at the bottom of the non-woven fabric rod 55. A connecting pipe 56 communicating with the through holes at the bottom of the non-woven fabric rod 55 is provided on the mounting seat 54. The other end of the connecting pipe 56 penetrates through the vertical plate 312 to convey the filtered water to the drainage box body 1.

[0065] The implementation principle of a drainage device for a civil engineering tunnel in an embodiment of the present application is as follows: The water collecting pipe 15 collects part of the tunnel water into the water collecting tank body 6. After the water level in the water collecting tank body 6 rises to the detection height of the water level sensor 633, the water collecting cover plate 62 rotates outward and opens, so that the water vertically descends to form a water curtain to wash the fine filter residues on the first filter plate 31, and then flows into the precipitation collection plate 7 for precipitation. The water on the precipitation collection plate 7 is absorbed by the non-woven fabric rod 55 to the lower part of the precipitation collection plate 7, and finally is conveyed to the drainage box body 1 through the connecting pipe 56.

[0066] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A drainage device for a civil engineering tunnel, comprising a drainage box body (1). A water inlet pipe (11) is arranged at the top of the drainage box body (1), and a drain pipe (12) is arranged at the bottom of the side wall. It is characterized in that, A filtering mechanism (3) and a drainage mechanism (4) are arranged in the drainage box body (1). The drainage mechanism (4) is arranged at the drainage pipe (12). A collection box body (2) is arranged on one side of the drainage box body (1). The inside of the collection box body (2) is communicated with the drainage box body (1), and a collection mechanism (5) for collecting filter substances is arranged inside. The filtering mechanism (3) includes a first filter plate (31) inclined towards the collection mechanism (5), a rotating paddle group (32) rotatably installed in the drainage box body (1), and a knocking component (33) in transmission connection with the rotating paddle group (32) and used for knocking the first filter plate (31).

2. The drainage device for a civil engineering tunnel according to claim 1, characterized in that, The first filter plate (31) includes a horizontal plate (311) and a vertical plate (312). The horizontal plate (311) has a guiding inclined surface (3111) inclined downward towards the collection mechanism (5). The first filter plate (31) is provided with a filtering arc plate (34) at the inclined bottom end of the guiding inclined surface (3111). A guiding inclined plate (341) for guiding the filter substances to the collection mechanism (5) is arranged on the filtering arc plate (34). The vertical plate (312) extends downward to the bottom of the collection mechanism (5).

3. A drainage device for a civil engineering tunnel according to claim 2, characterized in that, The rotating paddle group (32) includes a first rotating paddle (321) corresponding to the water inlet pipe (11), a second rotating paddle (322) arranged inside the filtering arc plate (34), and a first transmission member (323) connecting the first rotating paddle (321) and the second rotating paddle (322).

4. A drainage device for a civil engineering tunnel according to claim 3, characterized in that, The knocking component (33) includes a knocking support (331) fixed to the drainage box body (1), a knocking driving rod (332) rotatably installed on the knocking support (331), and a knocking rod (333) rotatably installed on the knocking support (331) and in limit cooperation with the knocking driving rod (332). A second transmission member (334) is arranged between the knocking driving rod (332) and the first rotating paddle (321). The knocking driving rod (332) rotates through the second transmission member (334).

5. A drainage device for a civil engineering tunnel according to claim 4, characterized in that, The knocking driving rod (332) includes a driving main rod (3321), a connecting disc (3322) arranged on the driving main rod (3321), and a driving curved rod (3323) arranged on the connecting disc (3322) and staggered with the driving main rod (3321). The knocking rod (333) is provided with a strip-shaped driving hole (3331) for inserting the driving curved rod (3323).

6. The drainage device for a civil engineering tunnel according to claim 1, characterized in that, The collection mechanism (5) includes a collection shell (51) slidably installed in the collection box body (2), a collection filter plate (52) arranged inside the collection shell (51), and lifting handles (53) arranged on opposite sides of the collection shell (51). The collection box body (2) is provided with handle grooves (22) for the lifting handles (53) to be inserted into.

7. A drainage device for a civil engineering tunnel according to claim 1, characterized in that, The drainage mechanism (4) includes a drainage baffle (41) for blocking the drain pipe (12) and a float plate (42) connected to the drainage baffle (41). The drainage box body (1) is provided with a float lifting groove (14) for slidably mounting the float plate (42).

8. The drainage device for a civil engineering tunnel according to claim 2, wherein, A water collecting pipe (15) corresponding to the water inlet pipe (11) is arranged in the drainage box body (1). A water collecting tank body (6) is arranged at the bottom of the filtering arc plate (34) of the drainage box body (1). One end of the water collecting pipe (15) corresponds to the output end of the water inlet pipe (11), and the other end corresponds to the top of the water collecting tank body (6). The water collecting tank body (6) is provided with a water curtain through hole (61) for water flow to pass through, and a water collecting cover plate (62) is rotatably arranged at the water curtain through hole (61) of the water collecting tank body (6); The water collecting tank body (6) is provided with a rotating assembly (63) for driving the water collecting cover plate (62) to rotate. The rotating assembly (63) includes a rotating driving member (631), a connecting rod member (632) connecting the rotating driving member (631) and the water collecting cover plate (62), and a water level sensor (633) for detecting the water level in the water collecting tank.

9. The drainage device for a civil engineering tunnel according to claim 6, wherein A sliding column body (521) slidably mounted on the collection shell (51) is arranged on the side wall of the collection filter plate (52). The collection shell (51) has a collection sliding groove (511) for mounting the sliding column body (521), and an elastic member (512) is arranged in the collection sliding groove (511).

10. A drainage device for a civil engineering tunnel according to claim 8, characterized in that, The collection box body (2) is further provided with a precipitation collection plate (7) at the bottom of the collection shell (51). A precipitation tank (71) is arranged on the precipitation collection plate (7). The top of the precipitation collection plate (7) has a collection inclined surface (72) inclined towards the precipitation tank (71). The bottom of the precipitation collection plate (7) is provided with a mounting seat (54). The mounting seat (54) is provided with a non-woven fabric rod (55) extending upwards to the precipitation tank (71).

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