170 results about "Floodgate" patented technology

The invention relates to the field of hydraulic engineering facilities, in particular to a fishway (1), a sluice and a fishway arrangement method.The fishway comprises a plurality of turn-back sections (11) which are connected in sequence and at least partially arranged on a ramp section of a stilling pool (3) at the downstream of the sluice, and the gradient of each turn-back section is smaller than that of the ramp section of the stilling pool; the bottom end of the fish migration channel is provided with a fishway inlet (13), and the top end of the fish migration channel is provided with a fishway outlet (14) communicated with the lock chamber of the water gate. And the fishes at the downstream are attracted by the water flow which flows out of the fishway and is suitable for migration, so that the fishes enter the fishway and upstream to enter the lock chamber at the upstream of the stilling pool. Due to the fact that the fishway extends into the gate chamber of the water gate in a turning-back mode, the height difference of the stilling pool is relieved in a segmented climbing mode, the water flow speed in the fishway is lower, and therefore the fishway is suitable for fish migration, and fishes can pass through the stilling pool and the water gate through the fishway.

The application relates to a linkage control method and system based on interval floodgate states, and belongs to the technical field of intelligent protection control. The linkage control method comprises the following steps: collecting real-time states of floodgates in each interval of underground facilities, external water level data and real-time rainfall data; inputting the external water level data and the real-time rainfall data into a pre-trained risk warning model to obtain a risk warning level; determining corresponding intervals to be closed according to the risk warning level; determining intervals to be closed whose floodgates are in an open state according to the real-time states of the floodgates in each interval to be closed, and obtaining an interval to be closed list; sorting the interval to be closed list based on a preset interval closing priority; and generating a step-by-step closing control instruction according to the sorted interval to be closed list. The application can flexibly meet the closing requirements of each interval, and fully guarantees the closing safety of important intervals and the reliability of personnel evacuation during disaster diffusion.

The water gate convenient to clean comprises a gate frame, a gate groove is formed in the inner surface of the gate frame, a gate plate is embedded in the gate groove in a sliding connection mode, the top of the gate plate is fixedly connected with a first screw rod, a first fixing groove is formed in the gate frame, a first gear is rotationally connected in the first fixing groove, and a second gear is rotationally connected in the second fixing groove. A threaded groove in threaded connection with the first screw is formed in the center of the first gear, and a first motor is arranged at the top of the gate frame. According to the device, through the arrangement of the water pump, the water pumping pipe, the movable pipe, the fixed pipe, the water outlet holes and other structures, water in a river channel can be conveniently pumped and sprayed to the surface of the flashboard to flush the flashboard, and through the arrangement of a third motor, a sweeping roller and a bristle structure, the surface of the flashboard can be automatically brushed; and meanwhile, by arranging a second motor, a second screw rod, a screw block, a lifting frame and other structures in a matched mode, the surface of the gate plate can be washed from top to bottom.

The application relates to the technical field of hydraulic engineering, and discloses a garbage filtering structure for hydraulic engineering and a construction method thereof, which comprises a water gate platform, a beam plate, a trash rack, a driving unit, a cleaning rack, a protection frame, a floating mechanism, an extension mechanism, a conveying mechanism, an air pump set and a trigger button, a rectangular opening for the extension mechanism to go in and out is arranged at the bottom of the water gate platform, beam columns reaching the bottom of a lake are arranged on the two side walls in the water gate platform, and the driving unit is provided with two; the extension mechanism and the cleaning rack can be floated on the water surface through the adjustment of the driving unit and the floating mechanism, the floating garbage can be intercepted through the inclined arrangement of the cleaning rack, the jamming of the trash rack and the cleaning frequency of the trash rack are reduced, and the problem that the floating garbage is accumulated on the water surface during the garbage interception process of the existing filtering structure, causing the water level part of the trash rack to be jammed and blocked by the garbage, is solved.

The application discloses a water gate structure stress and seepage flow intelligent monitoring system, and belongs to the technical field of water conservancy projects.The system comprises a stress monitoring module, a seepage flow collecting module and a data processing and analysis module.The stress monitoring module is used for monitoring the stress change of the water gate, including the stress change of key parts, wherein the key parts include a gate pier, a gate and a breast wall.The seepage flow collecting module is used for collecting the seepage pressure and seepage flow of the water gate.The data processing and analysis module is used for processing the stress change, seepage pressure and seepage flow, including cleaning and correction.The application can monitor the stress change of the key parts of the water gate, collect the seepage pressure and seepage flow, obtain more comprehensive and accurate monitoring data, and perform fusion processing on the data, so that the limitation of relatively independent data in traditional monitoring is broken, mutual verification and supplement among the data are realized, the safety state of the water gate is comprehensively evaluated from multiple dimensions, and the accuracy and reliability of monitoring are improved.

The disclosure provides a cross-river water diversion structure for collecting tail water and abandoned water downstream of a hydropower station, belonging to the technical field of hydraulic engineering. The water diversion structure comprises a water release gate, a drop well, a river-crossing box culvert, a tail water guiding assembly and an abandoned water guiding assembly. The water release gate is arranged in the tail water channel of the upper hydropower station and is used to cut off the tail water of the tail water channel of the upper hydropower station. The tail water guiding assembly is connected with the tail water channel of the upper hydropower station and is used to introduce the tail water cut off by the water release gate into the drop well. The abandoned water guiding assembly is connected with the stilling basin of the flood discharge tunnel of the upper hydropower station and is used to introduce the abandoned water of the stilling basin of the flood discharge tunnel of the upper hydropower station into the drop well. The drop well has a water outlet, and the river-crossing box culvert is connected to the water outlet and is located below the river channel and is used to introduce the water in the drop well into the water diversion system. The water diversion structure has the effects of improving the flood discharge safety of the upper hydropower station, reducing the disturbance to the ecological environment and reducing the construction cost.

The utility model relates to the technical field of water gates, and discloses an automatically adjustable water gate device which comprises a water channel, a first sliding groove is formed in the water channel, a support is fixedly installed above the water channel, and a first lead screw is meshed with a first connecting block. A fixing shaft is fixedly installed at the bottom of a second fixing plate, when the water level is too high, a floating block can be driven to rise upwards, meanwhile, when the water level continues to rise, the upper portion of the floating block can extrude the bottom of a button, the button is shrunk under the telescopic action of a spring and a telescopic rod, and therefore the button is triggered, and the water level is controlled to be adjusted. At the moment, a connecting table is connected with a first motor through a connecting line, so that the first motor is started, a first lead screw is meshed with a first connecting block, meanwhile, the first connecting block is fixedly connected with the gate through a first fixing plate, the gate is lifted upwards, and the purposes of timely draining water and preventing the situation that the farmland is submerged due to water level overflow are achieved.

This utility model relates to the field of gate technology and discloses a folding floodgate, including a gate seat. A motor is fixedly connected to the right side surface of the gate seat, and a water flow channel is opened through the front and rear of the gate seat. Support grooves connected to the water flow channel are opened on both the left and right sides of the gate seat. A gate plate is movably connected inside the water flow channel, and support members are provided on both the left and right sides of the gate plate. A positioning mechanism is provided on the upper surface of the gate seat. The positioning mechanism, which drives the positioning rod to rise and fall by a winch mechanism, makes the positioning rod press against the gate plate to form a rigid support after the gate plate is closed. This, together with the brake lock of the motor, forms a double electromechanical pressure-resistant structure, which significantly improves the stability of the gate plate against flood impact. The rising and falling of the positioning rod is automatically linked with the opening and closing of the gate plate, which ensures the mechanical reinforcement and pressure-bearing reliability when closed and avoids motion interference when opening, realizing safe and efficient coordination of flood control and rapid flood discharge.

This invention proposes a protective device and method for preventing the spread of pollutants in aquatic ecological environments, belonging to the field of ecological protection. The method includes the following steps: a water diversion channel is set up on one side of a river channel; anchor points are set up on the riverbank on the same side of the water diversion channel; a guide fluid is connected to the anchor points and allowed to float freely on the river surface; when the guide fluid is inclined at an acute angle relative to the river's flow direction, its end is anchored; the guide fluid is used to change the river's flow trajectory, causing floating debris in the water to bypass the water diversion channel. This invention uses a floating guide fluid placed obliquely on the bank, utilizing fluid dynamics principles to change the surface water flow trajectory, lifting floating debris from the inlet area of ​​the river flow rather than forcefully intercepting it. This results in minimal occupation of the river's cross-sectional area by the guide fluid, with the resulting water level rise only on the millimeter level, having almost no impact on upstream flood discharge and the water diversion capacity of the sluice gate, achieving the effect of diverting flow without obstructing water.

The utility model relates to the technical field of hydraulic engineering, in particular to a water gate door frame fixing device for hydraulic engineering construction, which comprises a concrete base, a connecting groove is arranged on the inner wall of the concrete base, a limit slot is arranged at the bottom of the inner wall of the connecting groove, and a gate frame is connected to the top surface of the concrete base. A connecting sliding base is fixedly welded to the side face of the gate frame, a limiting inserting rod is fixedly welded to the bottom face of the gate frame, a positioning bolt is arranged on the top face of the connecting sliding base, and a fixing bolt is arranged on the side face of the concrete base. The arc-shaped gate is arranged, the water inlet and the frame are arranged in a staggered mode, water flow is divided along the arc face of the gate, the frame and the connecting position are prevented from being directly impacted, the structure loosening risk is reduced, the stability of the gate body is ensured, and the sliding type filter screen frame is arranged in the gate, so that garbage impurities are intercepted during water drainage and prevented from being clamped into a gate gap to hinder opening and closing.

The present application relates to the technical field of intelligent monitoring, and more particularly to a water conservancy project operation state monitoring method and system. The method comprises the following steps: real-time monitoring of corresponding water conservancy dam stress-strain data, water conservancy dam seepage pressure data, water gate opening position data, water area water level data and water area flow rate data; obtaining corresponding regional meteorological data and regional topographic and geomorphic data around the water conservancy project and conducting dam displacement analysis and water gate opening degree statistics, while conducting water area potential influence mining analysis to obtain corresponding meteorological potential factors and topographic potential factors; based on the water conservancy dam seepage displacement and water conservancy gate opening degree and in combination with the corresponding meteorological potential factors and topographic potential factors of the water area region of the water conservancy project, the corresponding operation facilities of the water conservancy project are subjected to water conservancy operation risk monitoring and emergency early warning control to generate an emergency control plan for the corresponding operation state of the water conservancy project. The present application can improve the overall operation level of the water conservancy project.

The invention relates to the technical field of irrigation facility accessories, in particular to a channel multi-rotation type mechanical transmission control water gate. According to the channel multi-rotation type mechanical transmission control water gate, the technical problems that in the prior art, a gate is single in function, and multiple irrigation channels cannot be controlled at the same time are solved. A channel multi-rotation type mechanical transmission control and transportation water gate comprises a water outlet assembly, a water gate assembly arranged on the water outlet assembly and an upper computer controlling the water gate assembly. By arranging at least two water outlet nozzles, the number of the outer notches is equal to that of the inner notches, and the number of the outer notches is not larger than that of the water outlet nozzles, the water gate assembly can control connection and disconnection of a plurality of irrigation channels at the same time, so that the functions of the water gate assembly are increased, and the use performance of the channel multi-rotation type mechanical transmission control and transportation water gate is optimized. The water gate assembly comprises an inner gate ring with an inner notch and an outer gate ring with an outer notch, multi-direction control over water flow can be achieved, and the water gate assembly is not limited by the channel direction any more.

The application discloses a kind of hydraulic dam automatic auxiliary support mechanism, including the dam seat of being installed in the water gate drain two sides, the top end of dam seat is connected with each other by mounting seat, 2 dam seat between installation has hydraulic dam body, the bottom end both sides of hydraulic dam body are rotatedly connected with dam seat inside by pin shaft, the downstream side of hydraulic dam body is provided with multiple hydraulic cylinders, the fixed connection of telescopic rod of hydraulic cylinder and the back of hydraulic dam body, the top of hydraulic dam body is connected with the auxiliary support mechanism inside mounting seat by multiple steel wire ropes.The application uses automatic steel wire rope to pull system to support the hydraulic dam that will fail or failure, simultaneously, effectively drain the excessive flood on the upstream of hydraulic dam by automatic drainage system, reduce the adverse effects of upstream water load on hydraulic dam from two aspects, improve the reliability of hydraulic dam water retaining, can guarantee the safety of the people to the maximum, with strong use value, good social and economic benefits.

The application provides a water gate buffering protection mechanism, which comprises symmetrically arranged power chambers, a flow guide strip connected between the two power chambers, a driving shaft connected between the two power chambers, a gate connected to the driving shaft, a plurality of flow buffering and guiding flow guide grooves arranged on the gate, a flow guide plate arranged on the top of the gate, and a flow disturbing mechanism arranged in the flow guide groove and used for impacting water buffering. The application utilizes the elasticity of the buffering sleeve and the transmission of water, can reduce instantaneous impact, and simultaneously cooperates with the rotating pipe water inlet and the backflow pipe water outlet to form mixed flow, reduces the force of water flow contacting the gate, protects important parts of the water gate, further increases the safety of the water gate, eliminates most of the safety hazards, simultaneously reduces the maintenance difficulty, and reduces the risk.

The invention discloses an integrated water conservancy monitoring device for a reservoir sluice pump station, and relates to the technical field of water conservancy monitoring. The device comprises a mounting base, a stabilizing mechanism is fixedly mounted at the bottom of the mounting base, the stabilizing mechanism comprises a first stabilizing insertion rod fixedly mounted at the bottom of the mounting base, a connecting plate is slidably connected into the first stabilizing insertion rod, a second stabilizing insertion rod is fixedly mounted on the connecting plate, and the second stabilizing insertion rod penetrates through the first stabilizing insertion rod and extends out; a reset spring is arranged between the connecting plate and the inner wall of the first stable inserting rod, the upper portion of the connecting plate abuts against the arc shape of the connecting rod, and the connecting rod is slidably connected into the fixing mechanism. By arranging a plurality of stabilizing mechanisms, after a first stabilizing inserting rod is inserted into the ground, when the first stabilizing inserting rod meets soft or complex terrains, a connecting rod is pressed downwards, and a second stabilizing inserting rod penetrates into the ground to enhance connection. A plurality of stabilizing mechanisms are uniformly distributed, so that stable support can be provided from multiple directions, different geologies can be effectively coped, stable installation of the device is ensured, and continuous monitoring is guaranteed.

The application discloses a water gate displacement monitoring method and system, relates to a water gate, a dam, and data processing technology, and comprises the following steps: setting deformation monitoring points on the dam on the two sides of a water gate in advance; collecting image data of the deformation monitoring points on the two sides of the water gate at fixed angles according to a set time interval, and reserving initial image data as a reference image; extracting a plurality of reference points from the reference image, and matching any image data collected subsequently with the reference image based on the reference points; calculating the deviation between the image data and the reference image; determining a first deformation variable of the deformation monitoring points in the water flow direction according to the deviation; and determining the displacement range of the water gate according to the first deformation variable. The application compares the collected image data with the initial image to determine the displacement of the deformation monitoring points in the water flow direction, so as to convert the displacement of the water gate, and the application can realize long-term and automatic monitoring of the displacement of the water gate and meet the monitoring accuracy requirement.

The invention discloses a transformer substation group flood early warning grading method based on a time dimension. The method is characterized by comprising the following steps: 1, constructing underlying surface models of transformer substations with different voltage grades by using a digital elevation model, building vector data format data, urban land utilization information and urban rainwater pipe network data; 2, collecting data such as river channels and sluices in a city, and determining the boundary of the underlying surface model; 3, obtaining a forecast rainfall process according to the weather forecast model, and calculating to obtain a forecast flood calculation result from 24 hours to 72 hours; 4, a flood forecast calculation result is corrected; 5, determining the flood influence degree according to the corrected early warning flood calculation result, and determining the flood early warning grade of the transformer substation according to the flood influence degree; and 6, correcting the flood early warning level of the transformer substation. According to the invention, fine management of the flood season of the transformer substation group is realized in flood early warning grade division of the transformer substation group, and technical support is provided for flood control and waterlogging prevention decision.

The invention discloses a method for judging a backflow time period of a gate in a plain tidal river network. The method comprises the following steps: acquiring water gate upstream and downstream long-series observation water level, drainage basin rainfall and wind field data; astronomical tide and rainfall runoff decoupling is carried out on the downstream section water level, dynamic deformation characteristic parameters are extracted and corrected, and a downstream water level forecasting curve set is obtained; physically decomposing the observation water level of the upstream shallow lake, extracting the average water level and the wind-generated water level deviation, and calculating an upstream forecast curve set in combination with rainfall; combining the forecast curve set to construct a predicted water level difference sequence set; extracting a prediction error quantile based on a pre-constructed error condition distribution library, and performing lower bound calibration and minimum extraction on the difference sequence to obtain a partial safety fusion water level difference sequence; a backflow risk period is identified based on the fused sequence and a decision threshold. According to the method, time consumption of complex numerical solution is avoided, and timeliness and robustness of advanced early warning in the backflow risk time period are improved.

The invention discloses a water gate lockage flow correction method and device, a medium and a product, and relates to the technical field of hydraulic data correction, and the method comprises the steps: determining a predicted value of the lockage flow at the current moment based on the upstream and downstream water level difference at the current moment through a lockage flow empirical formula; determining a neighbor normalized relative deviation set at the current moment based on the upstream and downstream water level difference at the current moment and the optimal water level difference radius; determining a probability prediction value corresponding to each neighbor normalized relative deviation in the neighbor normalized relative deviation set at the current moment by using a probability prediction function; determining an error correction value at the current moment based on a probability prediction value corresponding to each neighbor normalized relative deviation in the neighbor normalized relative deviation set at the current moment by utilizing an error correction formula; and determining a corrected value of the lockage flow of the water gate at the current moment based on the predicted value of the lockage flow at the current moment and the error correction value. According to the method, the water gate lockage flow is corrected.

The utility model discloses a transverse pull type upturning door water gate structure which comprises gate reservoir structures arranged on the two sides of the center of a river channel. The upturning door structure is movably arranged in the door chamber structure and is used for retaining water; the gate reservoir gate is movably arranged on the gate reservoir structure, located between the gate reservoir structure and the center of the river channel and used for isolating water flow of the river channel, and the water gate bottom sill is arranged in the center of the river channel and matched with the upturning gate structure.

The invention discloses a three-river parallel flow water frying power generation flood control protection method which comprises the steps of horizontal tunnel arrangement, water diversion pipe step arrangement, ventilation window arrangement, water frying tunnel water pipe V and water tank comparison, tunnel section change, river channel centrifugal sand discharge and linear river channel sand discharge. The method comprises the following steps: arranging a sand blocking semi-water gate, comparing tunnel segmentation conditions, arranging a water inlet sand discharge pump-floating platform, and arranging a water conduit funnel, a screen and a hexagonal filter screen. The hydroelectric generation is stable in benefit; rivers are networked, and the drought and flood adjusting capacity is multiplied and far exceeds that of a water storage power station; three gorges have more time to raise the water level of the reservoir, more electricity is generated, and flood is prevented by lowering the water level; if the three gorges are attacked to break the dam, the destructive power of the flood to the downstream is reduced, namely, the attacked value of the three gorges is reduced, and the risk of being attacked is also reduced; for flood disasters, downstream flood control is helped, red envelopes can be collected, and water is most suitable for being used as the red envelopes in rainy seasons; the three gorges dam break exercise is facilitated, and controllability is achieved.

The utility model discloses a high -efficient water gate for water conservancy project in water conservancy project water gate field, including the gate frame, it provides the installation position for other components as the main body of device, the inside of gate frame is provided with the gate, lifting mechanism is used for opening the gate, the lifting mechanism includes the installation cavity, the inside of gate is opened in the installation cavity, the bottom of both sides of installation cavity is opened in the through slot, the inside slidingly connected of installation cavity has the baffle, the top middle part of baffle is opened in the thread groove. This high -efficient water gate for water conservancy project, through make first screw rod rotate, make the baffle rise, open the through slot, make the water flow impact on the rotating paddle wheel, drive the gate to rise, thereby avoid always using manpower to open the gate, utilize the impact of water flow to open the gate and assist, save physical strength, shorten the time of gate opening, save time and effort, improve the practicality of device.

The invention discloses a hydropower station workshop water stop and drainage structure which is suitable for a sectional type workshop, the workshop comprises an upstream inlet gate, a downstream tail water gate and a concrete bottom plate, an electromechanical equipment operation and maintenance space is formed between the upstream inlet gate and the downstream tail water gate and above the concrete bottom plate, a vertical upstream water stop belt is arranged in a transverse seam of the upstream inlet gate, and a vertical downstream water stop belt is arranged in a transverse seam of the downstream tail water gate. A vertical downstream water stop belt is arranged in the downstream tail water gate transverse joint, an electromechanical equipment peripheral water stop belt is arranged in the electromechanical equipment operation and maintenance space peripheral transverse joint, a drainage gallery is arranged in the concrete bottom plate, and a drainage gallery peripheral water stop belt is arranged in the drainage gallery peripheral transverse joint. A drainage pipe is further arranged between the transverse joint of the concrete bottom plate and the drainage gallery. The structure is ingenious, construction is easy, and leakage of river water and underground water to the workshop structure space can be effectively reduced; and meanwhile, by adopting different water-stop belt types, the cutting and bending of the steel bars caused by the water-stop belts are reduced, and great convenience is provided for the design and construction of a factory building structure.

The application relates to a rice field water-saving irrigation and tail water treatment system and method, which comprises a main canal, branch canals, water distribution canals, ring ditches, gates, water flow monitors and water pumps. The main canal is connected with the branch canals, the branch canals are connected with the water distribution canals arranged between multiple fields, and branch gate is arranged at the intersection of the branch canals and the water distribution canals. Irrigation water flows into the branch canals from the main canal and then flows into the water distribution canals. Ring ditches are arranged around each field, inner gates are arranged at the intersections between the ring ditches, the inner gates are opened, irrigation water flows into the rice field along the ring ditches, the water distribution canals are connected with middle canals located in the middle of each field, the middle canals are connected with drainage ditches, and drainage gates are arranged at the connection positions. Due to the height difference between the ring ditches and the middle canals, tail water in the ring ditches is discharged into the middle canals through the water pumps, the drainage gates are closed, tail water gates at the intersections of the middle canals and the water distribution canals are opened, tail water in the middle canals returns to the water distribution canals, and the tail water is recycled for water-saving irrigation. The water-saving irrigation is achieved by using rice, and the treatment method has the same effect.

The invention relates to the technical field of water conservancy projects, and discloses a drainage system for lowering the underground water level behind a water gate wing wall. The drainage system for lowering the underground water level behind the water gate wing wall comprises a water lowering assembly and a drainage assembly. The dewatering assembly is arranged behind the water gate wing wall and comprises a bottom filtering seepage layer, a flow guide drainage layer and a top filtering seepage layer which are sequentially arranged from bottom to top. One end of the drainage assembly is arranged on the diversion drainage layer, and the other end is connected with a drainage hole in the water gate wing wall body. According to the drainage system for reducing the underground water level behind the water gate wing wall, the water lowering assembly is arranged to filter and converge underground water, then the underground water is conveyed to the drainage hole through the drainage assembly arranged on the flow guide drainage layer and is drained from the back of the water gate wing wall, and therefore the drainage system has the good underground water converging effect; underground water can be rapidly drained, and the underground water level is lowered.

The utility model discloses a layout structure suitable for flood discharge and sand washing lock on many silt river, including sand washing lock and flood discharge lock, sand washing lock and flood discharge lock are side by side arrangement, and the upstream of sand washing lock and flood discharge lock is equipped with lock chamber upstream blanket, and the upstream blanket is equipped with the water retaining wall structure between sand washing lock and flood discharge lock, and the downstream of sand washing lock and flood discharge lock is equipped with downstream apron structure, and the downstream apron structure is equipped with the flow guide wall structure corresponding with water retaining wall structure, and the downstream apron structure tail end is fixedly connected with the sea bank structure, and the downstream apron structure and sea bank structure are equipped with apron tail end deep -tooth wall, still include water diversion lock, and water diversion lock is located at the one side of sand washing lock away from water retaining wall structure. The utility model discloses a layout structure suitable for flood discharge and sand washing lock on many silt river, solves the problem of easy wear and tear of existing energy dissipation mode, destroys the sea bank, threatens the stability of building and increases the maintenance management difficulty.

The utility model discloses a river channel water conservancy gate intercepting filter screen, belongs to the technical field of river channel water conservancy gates, solves the problem that floating objects are inconvenient to salvage, and comprises a water gate body, and the outer surface of the water gate body is fixedly connected with a salvage mechanism and a cleaning mechanism. The fishing mechanism comprises a supporting plate fixedly connected to the outer surface of the water gate body, the outer surface of the supporting plate is rotationally connected with a winding drum, the outer surface of the winding drum is fixedly connected with a rope, and the other end of the rope is fixedly connected with a fishing frame. The cleaning mechanism comprises a fixing plate fixedly connected to the outer surface of the water gate body, and two sets of conveying pipelines are fixedly connected to the lower surface of the fixing plate. The first gear motor can be started, the output shaft of the first gear motor drives the winding drum and the rotating shaft to rotate, then the winding drum can take up and pay off the rope, the fishing frame can slide along the outer surface of the limiting rod, and then floating objects on the outer surface of the filter plate can be conveniently fished.

The utility model discloses a novel riverway water level gauge which comprises a lifting device and a detection device. The lifting device comprises a fixing frame, a motor is fixedly installed at the top of the fixing frame, an output shaft of the motor is fixedly connected with a lead screw penetrating towards the interior of the fixing frame, a gate is installed in the fixing frame in an up-down sliding mode, and a threaded hole matched with the lead screw is formed in the gate; the detection device comprises a connecting piece, a first check block, a second check block and a vertical plate, wherein the connecting piece, the first check block and the second check block are fixedly connected to the fixing frame, and the vertical plate is fixedly connected to the gate. According to the novel riverway water level device, through the arrangement of the lifting device and the detection device, after the riverway water level rises, a floating ball can be driven to move upwards, so that the floating ball can drive a floating rod to press a first switch, and then after a motor is started, a gate can be lifted through a lead screw to discharge water; through the arrangement, the water gate can automatically lift the gate to discharge water after sensing that the water level of a river channel rises.

The invention relates to the technical field of municipal buildings, in particular to a gate-type flood control baffle. Comprising a water retaining door, and a door opening and closing device is arranged between a retaining wall and the water retaining door; the water retaining door comprises a door body, a supporting plate is hinged to the door body, and a torsion spring is arranged at the hinged position of the supporting plate and the door body. Stop blocks are arranged on the opposite-side retaining walls, and the positions of the stop blocks correspond to the supporting plates; a fixing shaft is arranged on the hinge seat, a wobble wheel is installed on the fixing shaft in a swinging mode, a power steel rope is wound on the wobble wheel, and the other end of the power steel rope is connected with the supporting plate. A pre-tensioning device is further hinged to the retaining wall and connected with the wobble wheel. In daily life, the water retaining door is in an open state and tightly attached to the retaining wall on one side, and space is not occupied; during use, the telescopic device is controlled to act through the control terminal, the water retaining door is closed, and the sealing rubber strip is matched with the ground and the retaining wall of an underground place entrance; the supporting plate and the stop block can assist the water retaining door in bearing larger pressure, the sealing performance is good, and the anti-pressure capacity is high.