Underground water drainage control system for water conservancy project

Abstract

The invention discloses an underground water control and drainage system for a water conservancy project. The system comprises a drainage channel, a water level meter, an active drainage assembly and a control center; the drainage channel is arranged in a target building needing to control and drain underground water, the active drainage assembly comprises a water pump and a drainage pipeline, and the water pump is installed in the drainage channel and connected with the drainage pipeline; the water level meter is arranged in the drainage channel, the water level meter measures the water level in the drainage channel and transmits a measurement result to the control center, and when the water level measured by the water level meter is higher than a set warning water level, the control center starts the water pump; according to the underground water control and drainage system, the water level meter is used for measuring the water level, the water pump is automatically started to drain water immediately when the actual water level is higher than the set warning water level, and intelligent control over the underground water level is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic engineering, in particular to a groundwater control and drainage system for hydraulic engineering. BACKGROUND

[0002] In the contemporary city, there are more and more buildings or projects with underground space, such as underground parking, civil air defense engineering, underground mall and underground transportation hub. These underground spaces need to face the problem of groundwater control and drainage, especially in today's extreme weather, the threat of underground waterlogging is getting bigger and bigger.

[0003] In the prior art, the underground space in the city mainly relies on the drainage channel to drain water. This passive drainage scheme mainly has the following defects: 1. Lack of effective intelligent active drainage means, often lagging behind in response to sudden extreme rainstorms, and easy to cause underground water accumulation; 2. The drainage channel is easy to be blocked in a long time of drainage, and sometimes the rainstorm is not very extreme, but a large amount of garbage brought by the rainstorm is accumulated and blocked at the screen of the drainage channel, which is difficult to clean effectively, resulting in the drainage capacity of the drainage channel getting worse and worse. SUMMARY

[0004] The technical problem to be solved by the present application is that the underground space in the prior art lacks effective intelligent active drainage means and is difficult to deal with the garbage accumulation problem caused by floods.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is: a groundwater control and drainage system for hydraulic engineering, comprising a drainage channel, a water level measuring meter, an active drainage assembly and a control center.

[0006] The drainage channel is arranged in the target building that needs to control and drain groundwater, the active drainage assembly comprises a water pump and a drainage pipeline, the water pump is installed in the drainage channel and connected with the drainage pipeline;

[0007] The water level measuring meter is arranged in the drainage channel, the water level measuring meter measures the water level in the drainage channel and transmits the measurement result to the control center, when the water level measured by the water level measuring meter is higher than the set warning water level, the control center starts the water pump;

[0008] The emptying system of the present application has intelligence and can be automatically started according to the water level to drain water in time.

[0009] Further, the emptying system further comprises a rainfall monitoring meter, the rainfall monitoring meter is arranged around the target building that needs to control and drain groundwater, the rainfall monitoring meter transmits the measurement result to the control center, and the control center synchronously records the measurement results of the water level measuring meter and the rainfall monitoring meter; the control center classifies the rainfall according to the measurement value of the rainfall monitoring meter, and configures different warning water levels for different classified rainfall.

[0010] Due to the terrain and other reasons, there is no exact correspondence between the water level of each underground space and the local rainfall; on the other hand, it takes a certain time for rainwater to fall and gather to the underground space, and the specific time is also related to the terrain, which means that the rainfall monitoring data can to some extent provide early warning for the underground water level. The control center of the application records the historical results of the water level measuring meter and the rainfall monitoring meter for the staff to query, and the staff formulates a rainfall grading method according to the historical data and local climate characteristics, and configures different warning water levels for each graded rainfall. The higher the rainfall level, the lower the warning water level configured; in the case of heavy rainfall, the active drainage can be started early to empty the drainage channel early to welcome more rainwater, and to ensure the effect of controlling and draining underground water.

[0011] Further, the number of the active drainage assembly is multiple, and the control center starts different number of active drainage assemblies according to the rainfall grading.

[0012] Since the underground water from the ground rainwater gathering contains a large amount of garbage, the application is provided with a main blocking assembly at the drainage channel, which comprises a first rotating shaft, a first base, a first blocking net, a storage box and a first driving assembly. Two first bases are arranged on both sides of the drainage channel, the two ends of the first rotating shaft are respectively inserted into the two first bases, the first rotating shaft is transversely arranged on the drainage channel, the first blocking net is fixed on the first rotating shaft, and the first blocking net is inserted into the drainage channel. The first blocking net is used to block the garbage in the flood;

[0013] The first driving assembly is connected with the first rotating shaft, and is used to drive the first rotating shaft to rotate and drive the first blocking net to overturn. The first driving assembly can adopt a motor; the storage box is located below the first blocking net after overturning, and is used to store the garbage falling from the first blocking net;

[0014] The first driving assembly is started at a fixed time or under control, and timely transfers the garbage blocked by the first blocking net to the storage box, so as to avoid the blockage of the first blocking net and reduce the drainage capacity of the drainage channel.

[0015] During the overturning period of the first blocking net, the drainage channel has no other blocking net, which is easy to cause the garbage to enter the inside of the drainage channel; in order to overcome this defect, the application is provided with a secondary blocking assembly, which is located upstream of the main blocking assembly;

[0016] The secondary blocking assembly comprises a second rotating shaft, a second base and a second blocking net. Two second bases are arranged on both sides of the drainage channel, the two ends of the second rotating shaft are respectively inserted into the two second bases, and the second rotating shaft is transversely arranged on the drainage channel. The second blocking net is fixed on the second rotating shaft;

[0017] The second rotating shaft is driven by a separate second driving assembly or by the first driving assembly through a transmission assembly; during the time period of the first barrier net being turned over, the second barrier net is turned into the drainage channel.

[0018] In order to reduce the cost, the second barrier net is generally not configured with a storage box, and the second barrier net only temporarily intercepts the garbage in the water flow during the time period of the first barrier net being turned over. In order to ensure the continuity of garbage interception, the actions of the first barrier net and the second barrier net should be coordinated, that is, in a complete action cycle, the action process of the first barrier net and the second barrier net includes the following four steps in turn: the second barrier net is turned into the drainage channel, the first barrier net is turned over, the first barrier net is turned into the drainage channel, and the second barrier net is turned over.

[0019] In the present application, if the second rotating shaft is driven by a separate second driving assembly, the production cost, use cost and maintenance cost are relatively high. In order to reduce the cost, the present application provides a scheme of using a first driving assembly and a transmission assembly to drive the second rotating shaft: the transmission assembly includes a driving sprocket, a driven sprocket and a chain, the driving sprocket is connected to the first rotating shaft, the driven sprocket is connected to the second rotating shaft, the chain is connected to the driving sprocket and the driven sprocket, and the first driving assembly drives the driving sprocket to rotate.

[0020] In the above transmission scheme, the first rotating shaft and the second rotating shaft always rotate synchronously and stop synchronously, which is not a perfect action process, and there is a moment when the first barrier net is turned out by half and the second barrier net is turned in by half in this scheme. Although this intermediate state moment is very short, it may still cause the garbage to slip away. The perfect action process should be that the first barrier net starts to turn out after the second barrier net is completely turned into the water. In order to realize the perfect action process, the present application also provides an improved transmission assembly, which further includes a first transmission cylinder, a first friction disc, a second friction disc, a spring, a locking assembly and a limiting assembly.

[0021] One end of the first rotating shaft is hollow and the inner wall is provided with a sector-shaped groove, one end of the first transmission cylinder is fixedly connected with the driving sprocket and the other end is inserted into the end of the first rotating shaft, the surface of the first transmission cylinder is provided with a protruding part, the protruding part is located in the sector-shaped groove, and the width of the protruding part is smaller than the width of the sector-shaped groove, so that when the first transmission cylinder rotates, the first rotating shaft does not immediately rotate synchronously, and only when the protruding part touches the edge of the sector-shaped groove, the first rotating shaft starts to rotate; this design makes the driving sprocket rotate, and the first rotating shaft first remains stationary, and the second rotating shaft and the second barrier net immediately start to rotate, the second barrier net is turned into the water in advance, and then the first rotating shaft and the first barrier net start to rotate, and the first barrier net starts to turn out.

[0022] One end of the second rotating shaft is hollow and the inner wall is provided with an axial guide groove, the second friction disc is provided with a second transmission cylinder, the second transmission cylinder is inserted into the end of the second rotating shaft, the surface of the second transmission cylinder is provided with an axial guide strip, and the guide strip is embedded into the guide groove; a spring is installed inside the end of the second rotating shaft, and the spring abuts against the second transmission cylinder;

[0023] The first friction disc is fixedly connected with the driven sprocket, the first friction disc is aligned with the second friction disc, the spring pushes the second transmission cylinder and the second friction disc so that the second friction disc is closely attached to the first friction disc;

[0024] The transmission between the driven sprocket and the second rotating shaft is realized through the first friction disc and the second friction disc, which means that if the second rotating shaft and the second screen are not affected by external force, the second rotating shaft and the second screen will rotate synchronously with the driven sprocket; if the second rotating shaft and the second screen are limited, the driven sprocket can still rotate alone, but friction will be generated between the first friction disc and the second friction disc;

[0025] The locking assembly comprises a ratchet wheel, a pawl, a pawl seat, a pull rope, a push block, a push rod, a first supporting plate and a second supporting plate, the ratchet wheel is sleeved on the second rotating shaft, the second supporting plate is located below the second rotating shaft, the pawl seat is installed on the second supporting plate, the pawl is hinged to the pawl seat and a reset spring is arranged at the hinge, and the pawl is engaged with the ratchet teeth on the ratchet wheel; the first supporting plate is located below the first rotating shaft, the push block is installed on the first supporting plate, the push rod is fixed to the outer surface of the first rotating shaft, and the two ends of the pull rope are connected with the pawl and the push block respectively; when the first screen is at the position of the drainage channel, the push rod drives the push block to translate, the pull rope pulls the pawl to rotate so that the pawl is separated from the ratchet wheel;

[0026] The function of the locking assembly is to realize that after the first screen is completely turned into the water, the second screen starts to turn out. After the first screen is turned out, the push rod is separated from the push block, the pawl is reset under the action of the reset spring and is engaged with the ratchet teeth of the ratchet wheel, so that the ratchet wheel and the second rotating shaft are locked; therefore, in the process that the driving sprocket drives the first screen to return, the second screen and the second rotating shaft remain stationary, and the driven gear can still rotate in this process, and the first friction disc and the second friction disc will rotate. After the first screen completely falls under the action of its own gravity, the push rod drives the push block to translate, the pull rope pulls the pawl to rotate so that the pawl is separated from the ratchet wheel, and the second rotating shaft is unlocked; since the protruding part of the first transmission cylinder still has space to continue to move in the fan-shaped groove, therefore, after the first screen is completely turned into the water, the driving sprocket can still rotate by a certain angle, and by using this rotating stroke, the driven sprocket can drive the unlocked second rotating shaft to rotate and drive the second screen to turn out; thus, the perfect action process that after the first screen is completely turned into the water, the second screen starts to turn out is realized;

[0027] The limiting assembly includes a plurality of limiting blocks respectively installed on the first rotating shaft, the first base, the second rotating shaft, the second base and / or the main structure of the drainage channel, and is used for limiting the rotation angle of the first rotating shaft and the second rotating shaft; in the application, the first rotating shaft needs to rotate by more than 180 degrees, and generally can rotate by 225 degrees, and the second rotating shaft needs to rotate by about 90 degrees; the specific arrangement position of the limiting block only needs to ensure that the rotation angle of the first rotating shaft and the second rotating shaft is equal to the designed angle.

[0028] Although the application designs the overturning function to timely remove the garbage intercepted by the first screen, in actual application, the flood often contains a large amount of plastic bags, packaging tapes, vines and grass stems, which can be wound on the warp and weft of the first screen, and the garbage wound on the first screen cannot be removed by dumping, and as the wound garbage increases, the water flow through the first screen will rapidly decrease; in order to overcome this problem, the control and drainage system of the application further includes a flame jet assembly, the flame nozzle of the flame jet assembly is aimed at the first screen after overturning, and the first screen is made of steel bars; after the first screen is overturned, the flame nozzle of the flame jet assembly directly sprays flame on the first screen, and the garbage wound on the first screen is removed by burning the flame.

[0029] Advantages:

[0030] (1) The underground water control and drainage system of the application measures the water level by using the water level measuring meter, and automatically starts the water pump to drain water as soon as the actual water level is higher than the set warning water level, so as to realize intelligent control of the underground water level.

[0031] (2) The underground water control and drainage system of the application measures the rainfall by using the rainfall monitor and classifies the rainfall, and different warning water levels are configured for each classified rainfall, the higher the rainfall level, the lower the configured warning water level, so as to guarantee the control and drainage effect of the underground water and realize precise control of the underground water level.

[0032] (3) The underground water control and drainage system of the application sets the first screen which can overturn to block the garbage in the flood and timely dump the blocked garbage, so as to guarantee that the drainage channel can always drain water efficiently.

[0033] (4) The underground water control and drainage system of the application sets the second screen which cooperates with the first screen, and the second screen can temporarily block the garbage in the flood in the gap when the first screen dumps the garbage, so as to avoid that the garbage blocks the drainage channel.

[0034] (5) The underground water control and drainage system of the application sets the special transmission assembly, so that the second screen and the first screen can share one power source and realize the target action process of "turning the second screen into the drainage channel, overturning the first screen, turning the first screen into the drainage channel and overturning the second screen". Attached Figure Description

[0035] Figure 1 This is a top view of the groundwater control and drainage system in Example 1;

[0036] Figure 2 yes Figure 1 Enlarged view of A;

[0037] Figure 3 yes Figure 1 AA cross-section (hiding the first drive component and chain);

[0038] Figure 4 This is a three-dimensional view of the groundwater control and drainage system of Example 1 (with the first drive component and chain hidden).

[0039] Figure 5 yes Figure 4 Enlarged view of B;

[0040] Figure 6 This is a perspective view of the groundwater control and drainage system of Example 1 (with the first drive component and chain hidden).

[0041] Figure 7 yes Figure 6 Enlarged view of C (with the hidden part of the ratchet);

[0042] Figure 8 yes Figure 6 Enlarged view of D;

[0043] Figure 9 This is a schematic diagram showing the connection between the drive sprocket, the first transmission cylinder, and the first rotating shaft in Embodiment 1;

[0044] Figure 10 This is a schematic diagram showing the connection of the driven sprocket, the first friction disc, the second friction disc, the second transmission cylinder, and the second rotating shaft in Embodiment 1.

[0045] Figure 11 This is a front view of the groundwater control and drainage system in Example 1;

[0046] Figure 12 This is a schematic diagram of the operation principle of the groundwater control and drainage system in Example 1 (Part 1);

[0047] Figure 13 This is the second schematic diagram of the operation principle of the groundwater control and drainage system in Example 1.

[0048] Figure 14 This is the third schematic diagram of the operating principle of the groundwater control and drainage system in Example 1.

[0049] Figure 15 yes Figure 14 Main view of the corresponding groundwater control and drainage system;

[0050] Figure 16 This is the front view of the groundwater control and drainage system in Example 2.

[0051] Wherein: 100, drainage channel; 200, main barrier assembly; 210, first rotating shaft; 211, sector groove; 220, first base; 230, first barrier net; 240, storage box; 250, first drive assembly; 300, secondary barrier assembly; 310, second rotating shaft; 311, guide groove; 320, second base; 330, second barrier net; 400, transmission assembly; 410, driving sprocket; 420, driven sprocket; 430, chain; 440, first transmission cylinder. ; 441, Protrusion; 450, First friction disc; 460, Second friction disc; 461, Second transmission cylinder; 461-1, Guide bar; 470, Spring; 480, Locking assembly; 481, Ratchet; 482, Pawl; 483, Pawl seat; 484, Pull rope; 485, Pulley block; 486, Pulley lever; 487, First support plate; 488, Second support plate; 490, Limiting assembly; 491, Limiting block; 500, Flame jet assembly; 510, Flame nozzle. Detailed Implementation

[0052] The present invention will be further described in detail below with reference to specific embodiments.

[0053] Example 1

[0054] like Figures 1 to 10 As shown, the groundwater control and drainage system for water conservancy projects in this embodiment includes a drainage channel 100, a water level meter, an active drainage component, a control center, a rainfall monitoring meter, a main barrier component 200, a secondary barrier component 300, and a transmission component 400.

[0055] A drainage channel 100 is installed in the target building where groundwater needs to be controlled. A water level gauge, an active drainage component, a main interception component 200, and a secondary interception component 300 are all installed on the drainage channel 100. The main interception component 200 is located downstream of the secondary interception component 300, and the active drainage component is located downstream of the main interception component 200. For ease of illustration, the drawings in this embodiment only show a portion of the drainage channel 100 and hide part of the sidewalls of the drainage channel 100. The specific locations of the active drainage component and the water level gauge are not shown in the drawings; however, they can be installed at any suitable location within the drainage channel 100 depending on the specific installation environment. The active drainage component includes a water pump and a drainage pipe. The water pump is installed inside the drainage channel 100 and connected to the drainage pipe. Activating the water pump allows for active drainage of the drainage channel 100.

[0056] A water level gauge is installed in the drainage channel 100. The water level gauge measures the water level in the drainage channel 100 and transmits the measurement result to the control center.

[0057] The rain monitoring meter is arranged around the target building which needs to control and drain groundwater, and the rain monitoring meter transmits the measurement results to the control center, and the control center synchronously records the measurement results of the water level measuring meter and the rain monitoring meter. The control center of the embodiment records the historical results of the water level measuring meter and the rain monitoring meter for the staff to query, and the staff formulates a rain grading mode according to the historical data and local climate characteristics, and configures different alarm water levels for each graded rain, and the higher the rain grade, the lower the configured alarm water level. When the water level measured by the water level measuring meter is higher than the set alarm water level, the control center starts the water pump to actively drain water. Through this setting, the active drainage can be started early in the case of heavy rain, and the drainage channel 100 is emptied early to welcome more rainwater, and the effect of controlling and draining groundwater is guaranteed.

[0058] The main blocking assembly 200 and the auxiliary blocking assembly 300 in the embodiment are used to intercept the garbage brought by the flood in the drainage channel 100. As shown in Figure 1 、 Figure 3 、 Figure 4 and Figure 5 , the main blocking assembly 200 includes a first rotating shaft 210, a first base 220, a first blocking net 230, a storage box 240 and a first driving assembly 250, two first bases 220 are arranged on both sides of the drainage channel 100, the two ends of the first rotating shaft 210 are respectively inserted into the two first bases 220, the first rotating shaft 210 is transversely arranged on the drainage channel 100, the first blocking net 230 is fixed on the first rotating shaft 210, the first blocking net 230 is inserted into the drainage channel 100, the first blocking net 230 is used to block the garbage in the flood, the first rotating shaft 210 can drive the first blocking net 230 to overturn when rotating, the storage box 240 is located below the first blocking net 230 after overturning, and the storage box 240 is used to store the garbage falling from the first blocking net 230.

[0059] The transmission assembly 400 includes a driving sprocket 410, a driven sprocket 420, a chain 430, a first transmission cylinder 440, a first friction disc 450, a second friction disc 460, a spring 470, a locking assembly 480 and a limiting assembly 490. As shown in Figure 1 , the first driving assembly 250 drives the driving sprocket 410 to rotate, as shown in Figure 5 and Figure 9 , one end of the first rotating shaft 210 is hollow and the inner wall is provided with a fan-shaped groove 211, one end of the first transmission cylinder 440 is fixedly connected with the driving sprocket 410 and the other end is inserted into the end of the first rotating shaft 210, the surface of the first transmission cylinder 440 is provided with a protruding part 441, the protruding part 441 is located in the fan-shaped groove 211, and the width of the protruding part 441 is smaller than the width of the fan-shaped groove 211, which makes Figure 3When the first transmission cylinder 440 is rotating, the first rotating shaft 210 does not rotate synchronously immediately. The first rotating shaft 210 will only start to rotate when the protrusion 441 touches the edge of the fan-shaped groove 211.

[0060] During the period when the first barrier 230 is flipped, the drainage channel 100 lacks other barriers, making it easy for garbage to enter the drainage channel 100. To overcome this deficiency, this embodiment is equipped with a secondary barrier component 300, which is located upstream of the main barrier component 200. Figure 1 and Figure 4 As shown, the secondary barrier assembly 300 includes a second rotating shaft 310, a second base 320, and a second barrier net 330. The two second bases 320 are arranged on both sides of the drainage channel 100. The two ends of the second rotating shaft 310 are respectively inserted into the two second bases 320. The second rotating shaft 310 is placed horizontally on the drainage channel 100, and the second barrier net 330 is fixed on the second rotating shaft 310. In this embodiment, the second rotating shaft 310 is driven by the first driving assembly 250 through the transmission assembly 400.

[0061] In this embodiment, the second barrier net 330 only temporarily intercepts garbage in the water flow during the time the first barrier net 230 is flipping. To ensure the continuity of garbage interception, the actions of the first barrier net 230 and the second barrier net 330 should be coordinated. That is, in a complete action cycle, the action flow of the first barrier net 230 and the second barrier net 330 includes the following four steps in sequence: the second barrier net 330 flips into the drainage channel 100, the first barrier net 230 flips, the first barrier net 230 flips into the drainage channel 100, and the second barrier net 330 flips. Among them, the first barrier net 230 needs to dump garbage, so the flipping angle of the first barrier net should not be less than 180°. In this embodiment, the flipping angle of the first barrier net 230 is about 225°; the flipping angle of the second barrier net 330 is about 90°. The following will explain how the transmission component 400 of this embodiment realizes the above four action flows.

[0062] like Figure 2 , Figure 7 and Figure 10As shown, one end of the second rotating shaft 310 is hollow and the inner wall is provided with an axial guide groove 311, the second friction disc 460 is provided with a second transmission cylinder 461, the second transmission cylinder 461 is inserted into the end of the second rotating shaft 310, the surface of the second transmission cylinder 461 is provided with an axial guide strip 461-1 which is embedded into the guide groove 311, the spring 470 is installed inside the end of the second rotating shaft 310 and abuts against the second transmission cylinder 461, the first friction disc 450 is fixedly connected with the driven sprocket 420, the first friction disc 450 is aligned with the second friction disc 460, the spring 470 pushes the second transmission cylinder 461 and the second friction disc 460 so that the second friction disc 460 is tightly attached to the first friction disc 450. The transmission between the driven sprocket 420 and the second rotating shaft 310 is realized through the first friction disc 450 and the second friction disc 460, which means that if the second rotating shaft 310 and the second barrier net 330 are not subjected to external force, the second rotating shaft 310 and the second barrier net 330 will rotate synchronously with the driven sprocket 420, and if the second rotating shaft 310 and the second barrier net 330 are limited, the driven sprocket 420 can still rotate alone, but friction will be generated between the first friction disc 450 and the second friction disc 460.

[0063] As shown in Figure 1 , the driven sprocket 420 and the driving sprocket 410 are connected through the chain 430.

[0064] As shown in Figure 5 and Figure 7 , the locking assembly 480 includes a ratchet wheel 481, a pawl 482, a pawl seat 483, a pull rope 484, a push block 485, a push rod 486, a first supporting plate 487 and a second supporting plate 488, the ratchet wheel 481 is sleeved on the second rotating shaft 310, the second supporting plate 488 is located below the second rotating shaft 310, the pawl seat 483 is installed on the second supporting plate 488, the pawl 482 is hinged on the pawl seat 483 and a reset spring is arranged at the hinge, the pawl 482 is engaged with the ratchet teeth on the ratchet wheel 481, the first supporting plate 487 is located below the first rotating shaft 210, the push block 485 is installed on the first supporting plate 487, the push rod 486 is fixed on the outer surface of the first rotating shaft 210, and the two ends of the pull rope 484 are connected with the pawl 482 and the push block 485 respectively. Figures 3 to 5 As shown in , when the first barrier net 230 is in the position of the drainage channel 100, the push rod 486 drives the push block 485 to translate, the pull rope 484 pulls the pawl 482 to rotate so that the pawl 482 is separated from the ratchet wheel 481, which means that as long as the first barrier net 230 is in the working position in the drainage channel 100, the ratchet wheel 481 is in the unlocked state, and if the first barrier net 230 is flipped, the ratchet wheel 481 is locked by the pawl 482.

[0065] The limiting assembly 490 comprises a plurality of limiting blocks 491, which can be installed on the first rotating shaft 210, the first base 220, the second rotating shaft 310, the second base 320 and / or the main structure of the drainage channel 100, and only need to be installed in appropriate positions and ensure that the first screen 230 is flipped at an angle of about 225° and the second screen 330 is flipped at an angle of about 90°. For example, in the embodiment, the limiting blocks 491 are arranged on the second rotating shaft 310 and the second base 320 as shown in Figure 8 , so as to limit the flipping angle of the second screen 330 to 90°. The rotation angle of the first screen 230 is also limited in the same way.

[0066] The state of the groundwater control and drainage system in the initial stage of drainage is shown in Figure 11 , in which the first screen 230 is in a vertical state inserted into the drainage channel 100, and the second screen 330 is in a horizontal state. The garbage in the flood can be intercepted by the first screen 230, and the control center can open the first driving assembly 250 to make the driving sprocket 410 periodically rotate forward and reverse once to dump the garbage blocked by the first screen 230 into the storage box 240. The specific working principle is as follows:

[0067] (1) In the initial state, the state of the first screen 230 and the second screen 330 is shown in Figure 3 and Figure 11 , in which the first screen 230 is in a vertical state, and the second screen 330 is in a horizontal state.

[0068] (2) After a period of time, the first driving assembly 250 drives the driving sprocket 410 to rotate clockwise, and the first transmission cylinder 440 on the driving sprocket 410 rotates from the position shown in Figure 3 to the position shown in Figure 12 . It can be seen that in this process, the convex part 441 of the first transmission cylinder 440 does not touch the edge of the fan-shaped groove 211, so the first rotating shaft 210 does not rotate, that is, the first rotating shaft 210 and the first screen 230 remain in the original vertical state. However, in this process, the driving sprocket 410 drives the driven sprocket 420 to rotate, and the driven sprocket 420 drives the second rotating shaft 310 to rotate through the first friction plate 450 and the second friction plate 460, and finally the second rotating shaft 310 and the second screen 330 rotate to the vertical state shown in Figure 12 . At this time, the second screen 330 starts to intercept garbage upstream of the first screen 230 in order to flip the first screen 230 subsequently. In this stage, the first screen 230 is in a vertical state, and the ratchet 481 is also in an unlocked state. Figure 12 The driving sprocket 410 continues to rotate clockwise as shown in Figure 13As shown, the first transmission cylinder 440 drives the first rotating shaft 210 and the first barrier net 230 to start to overturn; in this process, the driven sprocket 420 also rotates, but since the second rotating shaft 310 and the second barrier net 330 have been limited by the limiting block 491 as shown, the second rotating shaft 310 and the second barrier net 330 do not rotate; and in this process, the push rod 486 is separated from the push block 485, the pawl 482 is reset under the action of the reset spring and engages with the teeth of the ratchet wheel 481, so that the ratchet wheel 481 and the second rotating shaft 310 are locked. Figure 8

[0069] (3) As shown, the driving sprocket 410 continues to rotate until the first barrier net 230 overturns by 225°, after overturning, the garbage in the first barrier net 230 is dumped into the storage box 240 as shown. Figure 14 Figure 15

[0070] (4) After dumping is completed, the driving sprocket 410 starts to rotate counterclockwise as shown, the first transmission cylinder 440 drives the first rotating shaft 210 and the first barrier net 230 to rotate counterclockwise; after the first barrier net 230 rotates over the highest point, it will reach a state as shown; in the process of counterclockwise rotation of the driving sprocket 410, the driven sprocket 420 is also driven to rotate counterclockwise through the chain 430, but since the ratchet wheel 481 is locked, in this process, the second rotating shaft 310 and the second barrier net 330 remain stationary, and the second barrier net 330 remains in a vertical posture in the drainage channel 100. Figure 14 Figure 13

[0071] (5) With the counterclockwise rotation of the driving sprocket 410, the first barrier net 230 will eventually reach a vertical posture as shown, at this time, the push rod 486 on the first rotating shaft 210 drives the push block 485 to translate, the pull rope 484 pulls the pawl 482 to rotate so that the pawl 482 is separated from the ratchet wheel 481, and the ratchet wheel 481 is unlocked. Figure 12

[0072] (6) As shown, the driving sprocket 410 continues to drive the first transmission cylinder 440 to rotate counterclockwise to a position as shown, in this process, the first rotating shaft 210 and the first barrier net 230 remain stationary, but the driven sprocket 420 will drive the second rotating shaft 310 and the second barrier net 330 to rotate counterclockwise to a position as shown. Figure 12 Figure 3 Figure 3

[0073] At this point, the first barrier net 230 has completed a complete garbage dumping action, and the whole process follows the order of the second barrier net 330 overturning into the drainage channel 100, the first barrier net 230 overturning, the first barrier net 230 overturning into the drainage channel 100 and the second barrier net 330 overturning. ​​​​​​​​​

[0074] Embodiment 2

[0075] As shown in Figure 16 the embodiment is basically the same as Embodiment 1, the difference is that the embodiment adds a flame spraying assembly 500.

[0076] Although Embodiment 1 designs a turnover function to timely remove the garbage intercepted by the first barrier net 230, in actual application, the flood often contains a large amount of plastic bags, packaging tapes, vines, grass stems and other garbage, which can be wound on the warp and weft of the first barrier net 230. These wound garbage cannot be removed by dumping, and as the wound garbage increases, the water flow through the first barrier net 230 will rapidly decrease. In order to overcome this problem, the embodiment adds a flame spraying assembly 500, the flame nozzle 510 of the flame spraying assembly 500 is aimed at the first barrier net 230 after turnover, and the first barrier net 230 is made of steel bars.

[0077] As shown in Figure 16 after the first barrier net 230 is turned over, the flame nozzle 510 of the flame spraying assembly 500 directly sprays flame on the first barrier net 230, and uses flame combustion to remove the garbage wound on the first barrier net 230.

[0078] Although the embodiments of the present application are described in the specification, these embodiments are only as a hint, and should not limit the protection scope of the present application. Various omissions, substitutions and changes made within the scope of the purpose of the present application should be included in the protection scope of the present application.

Claims

1. A groundwater control and drainage system for hydraulic engineering, characterized by: The application relates to a water drainage system, which comprises a drainage channel (100), a water level measuring device, an active water drainage assembly and a control center. The drainage channel (100) is arranged in a target building which needs to control and drain underground water, the active water drainage assembly comprises a water pump and a drainage pipeline, the water pump is installed in the drainage channel (100) and connected with the drainage pipeline; the water level measuring device is arranged in the drainage channel (100), the water level measuring device measures the water level in the drainage channel (100) and transmits the measurement result to the control center, when the water level measured by the water level measuring device is higher than the set warning water level, the control center starts the water pump.

2. The groundwater containment system of claim 1, wherein: The water drainage system further comprises a rainfall monitoring device, the rainfall monitoring device is arranged around the target building which needs to control and drain underground water, the rainfall monitoring device transmits the measurement result to the control center, and the control center synchronously records the measurement results of the water level measuring device and the rainfall monitoring device.

3. The groundwater containment system of claim 2, wherein: The control center grades the rainfall according to the measurement value of the rainfall monitoring device, and configures different warning water levels for different graded rainfall.

4. The groundwater containment system of claim 3, wherein: The number of the active water drainage assemblies is multiple, and the control center starts different numbers of the active water drainage assemblies according to the rainfall grading.

5. The groundwater containment system of claim 1, wherein: The water drainage system further comprises a main blocking assembly (200), the main blocking assembly (200) comprises a first rotating shaft (210), a first base (220), a first blocking net (230), a storage box (240) and a first driving assembly (250), two first bases (220) are arranged on both sides of the drainage channel (100), two ends of the first rotating shaft (210) are respectively inserted into the two first bases (220), the first rotating shaft (210) is horizontally arranged on the drainage channel (100), the first blocking net (230) is fixed on the first rotating shaft (210), the first blocking net (230) is inserted into the drainage channel (100), and the first blocking net (230) is used for blocking garbage in floodwater; The first driving assembly (250) is connected with the first rotating shaft (210), the first driving assembly (250) is used for driving the first rotating shaft (210) to rotate and driving the first blocking net (230) to overturn, the storage box (240) is located below the first blocking net (230) after overturning, and the storage box (240) is used for storing the garbage falling from the first blocking net (230).

6. The groundwater containment system of claim 5, wherein: The water drainage system further comprises a secondary blocking assembly (300), and the secondary blocking assembly (300) is located upstream of the main blocking assembly (200); The secondary blocking assembly (300) comprises a second rotating shaft (310), a second base (320) and a second blocking net (330), two second bases (320) are arranged on both sides of the drainage channel (100), two ends of the second rotating shaft (310) are respectively inserted into the two second bases (320), and the second rotating shaft (310) is horizontally arranged on the drainage channel (100); the second blocking net (330) is fixed on the second rotating shaft (310); The second rotating shaft (310) is driven by a separate second driving assembly or by the first driving assembly (250) through a transmission assembly (400); during the time period when the first blocking net (230) overturns, the second blocking net (330) is turned into the drainage channel (100).

7. The groundwater containment system of claim 6, wherein: In a complete action cycle, the action flow of the first barrier net (230) and the second barrier net (330) includes the following steps in sequence: the second barrier net (330) is turned into the drainage channel (100), the first barrier net (230) is turned over, the first barrier net (230) is turned into the drainage channel (100), and the second barrier net (330) is turned over.

8. The groundwater containment system of claim 6, wherein: The transmission assembly (400) comprises a driving sprocket (410), a driven sprocket (420) and a chain (430), the driving sprocket (410) is connected to the first rotating shaft (210), the driven sprocket (420) is connected to the second rotating shaft (310), the chain (430) is connected to the driving sprocket (410) and the driven sprocket (420), and the first driving assembly (250) drives the driving sprocket (410) to rotate.

9. The groundwater containment system of claim 8, wherein: The transmission assembly (400) further comprises a first transmission cylinder (440), a first friction disc (450), a second friction disc (460), a spring (470), a locking assembly (480) and a limiting assembly (490). One end of the first rotating shaft (210) is hollow and the inner wall is provided with a fan-shaped groove (211), one end of the first transmission cylinder (440) is fixedly connected with the driving sprocket (410) and the other end is inserted into the end of the first rotating shaft (210), and the surface of the first transmission cylinder (440) is provided with a protruding part (441) located in the fan-shaped groove (211); One end of the second rotating shaft (310) is hollow and the inner wall is provided with an axial guide groove (311), the second friction disc (460) is provided with a second transmission cylinder (461), the second transmission cylinder (461) is inserted into the end of the second rotating shaft (310), the surface of the second transmission cylinder (461) is provided with an axial guide strip (461-1), and the guide strip (461-1) is embedded in the guide groove (311); the spring (470) is installed inside the end of the second rotating shaft (310), and the spring (470) abuts against the second transmission cylinder (461); The first friction disc (450) is fixedly connected with the driven sprocket (420), the first friction disc (450) is aligned with the second friction disc (460), the spring (470) pushes the second transmission cylinder (461) and the second friction disc (460) so that the second friction disc (460) is tightly attached to the first friction disc (450); The locking assembly (480) comprises a ratchet wheel (481), a pawl (482), a pawl seat (483), a pull rope (484), a push block (485), a push rod (486), a first supporting plate (487), and a second supporting plate (488). The ratchet wheel (481) is sleeved on the second rotating shaft (310), the second supporting plate (488) is located below the second rotating shaft (310), the pawl seat (483) is installed on the second supporting plate (488), the pawl (482) is hinged on the pawl seat (483) and is provided with a reset spring at the hinge, and the pawl (482) is engaged with the ratchet teeth on the ratchet wheel (481). The first supporting plate (487) is located below the first rotating shaft (210), the push block (485) is installed on the first supporting plate (487), the push rod (486) is fixed on the outer surface of the first rotating shaft (210), and the two ends of the pull rope (484) are connected with the pawl (482) and the push block (485) respectively. When the first screen (230) is located at the position of the drainage channel (100), the push rod (486) drives the push block (485) to translate, the pull rope (484) pulls the pawl (482) to rotate, so that the pawl (482) is separated from the ratchet wheel (481); The limiting assembly (490) comprises a plurality of limiting blocks (491), and the plurality of limiting blocks (491) are installed on the first rotating shaft (210), the first base (220), the second rotating shaft (310), the second base (320), and / or the main body structure of the drainage channel (100) respectively. The limiting assembly (490) is used for limiting the rotation angle of the first rotating shaft (210) and the second rotating shaft (310).

10. The groundwater containment system of claim 9, wherein: The flame spraying assembly (500) is further included, a flame nozzle (510) of the flame spraying assembly (500) is aligned with the first screen (230) after being turned over, and the first screen (230) is made of steel bars.

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