1000results about "Artificial water canals" patented technology

The invention relates to the technical field of data processing, in particular to a rice field gate anti-clogging intelligent monitoring control method, which comprises the following steps of: acquiring multi-dimensional monitoring data of a gate at each monitoring moment in real time, and forming a multi-dimensional monitoring data sequence by the multi-dimensional monitoring data of the gate at each monitoring moment in each operation process; one gate operation process corresponds to one multi-dimensional monitoring data sequence; for any gate operation process, obtaining an optimized gate clogging coefficient of any gate operation process according to the multi-dimensional monitoring data sequence corresponding to any gate operation process; the method comprises the steps of obtaining an optimized gate clogging coefficient of each gate operation process, obtaining a gate clogging trend index by using the optimized gate clogging coefficient of each gate operation process, and carrying out gate clogging prevention intelligent monitoring control according to the optimized gate clogging coefficient and the gate clogging trend index of the current gate operation process. And early-stage, quantitative and trend monitoring of the clogging state of the gate is realized.

The landslide dammed lake landform utilization and restoration method comprises the steps that backfill back pressure is conducted on a slope toe river channel at the front edge of a landslide, reinforced concrete retaining walls are arranged at the upstream end and the downstream end of a backfill back pressure area respectively to stabilize backfill bodies of the backfill back pressure area, and water from the upstream of the river channel is intercepted to form a water storage area; reinforced concrete flood discharge and sand discharge holes are linearly distributed in stable mountain bed rock outside the landslide area, the inlet ends of the flood discharge and sand discharge holes are connected with an upstream water storage area river bank, the outlet ends of the flood discharge and sand discharge holes are connected with a downstream river bank slope, and a water pump station and a pipeline are built in a geological stable area of the water storage area to lift water. The land in the landslide area is recycled; by arranging the backfill back pressure area and the flood discharge and sand discharge hole, on the basis of stabilizing the landslide weir body, the water pumping station and the water lifting pipeline are built, water stored in the water storage area is utilized to irrigate and recycle land in the landslide area, land utilization and ecological restoration are carried out on the basis of landslide prevention and control, and the landslide treatment effect is improved.

The invention relates to the technical field of agricultural water conservancy control, in particular to a high-standard farmland intelligent irrigation and drainage pump gate cooperative remote control method and system, and the method comprises the steps: generating a cooperative control instruction which restrains the power of a water pump and the opening and closing of a gate at the same time based on farmland water level information; establishing a conflict relationship between the response delay time of the water pump and the action delay time of the gate, and disassembling the cooperative control instruction into control sub-instructions for the water pump and the gate; when the soil under-saturation signal is continuously detected, the distribution adjustment control sub-instruction adjusts the output power of a water pump and controls the opening degree of an irrigation gate; when the water level overrun signal is continuously detected, the control sub-instruction is adjusted to control the opening degree of the drainage gate, and the output power of the water pump is reversely adjusted based on a backwater shock wave model triggered by the gate opening degree; the farmland water level information is detected in real time, and a cooperative control instruction is reconstructed. According to the invention, the problem of water level oscillation caused by misalignment of cooperative control of the water pump and the gate due to response time delay difference is effectively solved.

The invention provides an intelligent construction safety monitoring system and method for a U-shaped stacked box rigid frame aqueduct, and the system is suitable for the U-shaped stacked box rigid frame aqueduct for hanging basket construction, and comprises a sensing layer which is used for collecting the stress state of a hanging basket; the environment monitoring unit is a micro weather station mounted on an upper cross beam of the hanging basket; the posture monitoring unit is used for monitoring the lateral and longitudinal inclination angles of the hanging basket in real time; the execution layer comprises a catenary anti-overturning device arranged behind the rear anchor point of the hanging basket, the catenary anti-overturning device comprises a hinged steel chain, and the hinged steel chain and the foundation anchoring end form a catenary structure; the control layer comprises an edge computing terminal and a threshold library in which early warning thresholds are stored, and the edge computing terminal is used for receiving the data of the sensing layer in real time, performing multi-source data fusion analysis and judging whether an early warning or emergency mechanism is triggered or not according to an analysis result; and the interaction layer comprises a visual platform, and the visual platform is used for carrying out fusion display on the monitoring data and the BIM model and presenting the risk level in a color coding mode.

The invention provides a vertical shaft type water inlet and outlet gate system of a pumped storage power station, and belongs to the technical field of water conservancy safety control. Comprising a cylindrical gate, a closed shaft, a trash rack section, a diffusion section, a straight pipe section, a bent pipe section and a tunnel section which are sequentially arranged on the cylindrical gate vertical shaft type water inlet and outlet in the power generation water flow direction. One end of the trash rack section is a horn mouth section, the trash rack section is provided with a cover plate, a diversion pier and a trash rack, and the lower portion of the cover plate of the trash rack section is connected with the diversion pier; digging a hole in the center of the cover plate; the trash rack is provided with an orifice serving as a water inlet / outlet orifice; a diversion tunnel is connected behind the bent pipe section; the gate is a cylindrical gate and arranged above the water inlet and outlet, the gate is vertically communicated, the bottom of the gate is fixed to the inner surface of the horn mouth section concrete, the top of the gate is fixed to a cover plate of the trash rack section, and the periphery of the gate is fixedly connected with a closed shaft through a diversion pier wall. The construction difficulty can be reduced, and the maintenance convenience degree can be improved.

The invention relates to the technical field of water conservancy and hydropower engineering, and discloses a sediment-carrying bed load riverway water taking structure which comprises a bed stabilizing structure, a flow guiding structure and a water taking structure, the bed stabilizing structure is arranged perpendicular to the water flow direction of a riverway, and one end of the bed stabilizing structure is connected with one side of the riverway; one side of the diversion structure is connected with the other end of the bed stabilizing structure, and the other side is connected with one end of the flood discharge gate; the water taking structure comprises a water taking weir, a pre-sedimentation tank and a sand blocking ridge, the pre-sedimentation tank is arranged on the other side of the river channel, the outer wall of the pre-sedimentation tank is connected with the flood discharge gate, the water taking weir is arranged on the side, close to the flood discharge gate, of the pre-sedimentation tank, and the sand blocking ridge is arranged on the downstream of the pre-sedimentation tank. The water taking structure carries out water taking and desilting, the water diversion and sand prevention problems of the river channel water taking opening are solved, and the operation efficiency of the water taking system is improved.

The application relates to the technical field of trash racks, and particularly discloses a water conservancy trash rack device, which comprises a channel, a trash rack fixed in the channel and a collecting mechanism arranged on one side of the trash rack, two oppositely arranged mounting plates are fixed at the top of the channel, traction assemblies are arranged on the two mounting plates, slide assembly components are arranged on the inner walls of the two mounting plates, a cleaning mechanism and a filtering mechanism connected with the cleaning mechanism are arranged in the channel; when the accumulated sundries need to be cleaned, the cleaning mechanism is pulled upwards along the slide assembly component through the traction assembly, the sundries are cleaned out of the water surface, in the process, the filtering mechanism can intercept the sundries flowing below the cleaning mechanism to prevent the sundries from being accumulated at the trash rack, and the filtering mechanism can assist the cleaning mechanism to pour the sundries into the collecting mechanism.

The utility model relates to a rectifying gate, which belongs to the technical field of hydraulic engineering and comprises a gate plate and a turntable. Wherein the gate plates are arranged in the runner in pairs; when the gate plates arranged in pairs are combined into a V shape, the rectifying gate is closed; otherwise, the rectification gate is opened; the V-shaped opening end formed by combining the flashboards faces the water flow direction, and when the flashboards are opened to be parallel to the flow channel direction, the opening degree of the rectification gate is maximum so as to adjust the water flow; the turntable is arranged above the flashboard and is fixedly connected with the flashboard; and when rotating, the turntable drives each pair of flashboards to rotate reversely. The opening degree of the rectifying gate can be adjusted according to needs, and therefore accurate control over water flow is achieved. When the gate plate is opened to be parallel to the direction of the flow channel, the opening degree of the rectification gate is maximum, stable flowing of water flow can be ensured, the problem that the water flow of an existing gate device is unstable is solved, and more stable water flow management is provided; in addition, the rectifying gate is simple in structure and convenient to install and maintain.

The utility model discloses an integrated measuring weir which comprises a flow guide frame, a limiting groove is formed in the inner wall of the flow guide frame, and a weir plate is connected into the limiting groove in a sliding mode. The extension frame can be connected to the back surface or the front surface of the flow guide frame according to actual conditions, so that the lengths of the upstream section and the downstream section of the weir plate are adjusted, for example, when an operator needs to connect an extension frame with a certain length to the downstream section of the weir plate, the operator aligns a butt-joint groove in the back surface of the customized extension frame with a butt-joint frame on the front surface of the flow guide frame; when an operator needs to replace a weir plate, the operator can disassemble bolts and then pull the weir plate upwards, the butt joint frame is inserted into the butt joint groove, the flow guide frame is tightly attached to the extension frame, then the first L-shaped installation frame and the second L-shaped installation frame are connected through screws, and then installation of the extension frame is completed; the device has the advantages of being convenient to use and high in construction efficiency.

The utility model provides a movable discharging device for ditch pouring, which comprises a support frame, a movable discharging device and a movable discharging device, wherein a sliding cavity is formed in the support frame; the two moving frames are arranged at the two ends of the supporting frame correspondingly, and one ends of the two moving frames are slidably connected to the inner side face of the sliding cavity; and the two discharging frames are fixedly mounted at the bottoms of the two moving frames correspondingly. According to the movable discharging device for ditch pouring, through mutual cooperation of the supporting frame, the movable frame, the discharging frame, the material guiding frame and other structures, when a ditch is poured, concrete can be guided, the concrete enters molds on the two sides of the ditch, the concrete is prevented from falling into the middle of the ditch, and the pouring quality of the ditch is improved. And subsequent manual cleaning is needed, so that the construction efficiency is improved, and waste of construction materials is avoided.

The utility model relates to the technical field of irrigation and water conservancy engineering, in particular to an irrigation and water conservancy diversion device which comprises a gate seat fixedly installed between the inner walls of the two sides of a canal, the gate seat is of a hollow structure, a filter plate is embedded in one side wall of the gate seat, and a collecting box is arranged on the side, away from the gate seat, of the filter plate in a sliding fit mode. Driving assemblies for driving the collecting box to ascend and descend are arranged on the inner walls of the two sides of the canal, at least two water outlets are formed in the other side wall of the gate base in a penetrating mode, and gate plates are arranged in the positions, corresponding to the water outlets, in the gate base in a sliding mode. The top of the gate seat is provided with a lifting assembly for driving each gate plate to ascend and descend to control the corresponding water outlet to be opened and closed. The filter plate cleaning device is reasonable in structural design, convenient to operate and capable of automatically cleaning the filter plate without dismounting the filter plate.

This invention provides a prefabricated canal construction process, comprising the following steps: S1: excavating a waterway; S2: constructing a transportation system above the waterway along its extension direction; S3: manufacturing prefabricated components; S4: using the transportation system to move the prefabricated components to a predetermined position on the waterway; S5: repeating S3 to S4 until all the prefabricated components are transported; S6: assembling adjacent prefabricated components to form a prefabricated canal. The prefabricated canal construction process provided by this invention offers a hoisting method, constructing a transportation system above the waterway, using the transportation system to move the prefabricated components to a predetermined position, and then sequentially assembling multiple prefabricated components to form a canal. This avoids on-site construction of prefabricated components, only requiring transportation of prefabricated components, reducing the number of material handling operations and saving construction time. The multiple prefabricated components assembled into a canal in this application are easy to move individually, and can be quickly transported to a designated location with the help of the transportation system, accelerating the construction efficiency of the canal.

The utility model discloses an assembly type canal lining device, and belongs to the technical field of water conservancy projects. The device comprises a horizontal module and a slope module, the horizontal module is provided with a clamping groove opening, a clamping groove hole, a tenon and a first expansion rubber water stop block, and the slope module is provided with a tenon, a clamping groove opening, a clamping groove hole and a second expansion rubber water stop block. All the modules are connected through tenon-clamping groove structures, the horizontal modules and the slope modules are connected to adapt to the current gradient of a channel, and the adjacent horizontal modules and slope modules are connected to adapt to the bottom slope and the width of the channel correspondingly. And the water stop blocks on the module tenons and the elastic sealing materials at the joints form a multiple water stop structure. The device is simple in structure, convenient to operate, good in water stopping effect, high in adaptability and capable of effectively overcoming the defects of an existing canal lining technology, improving the canal system water utilization coefficient and reducing water resource waste.

The utility model discloses an intelligent gate integrating a rice field water level monitoring function, which comprises a gate body, a dredging groove, a plurality of groups of plugging components, a plurality of groups of opening and closing components, a water level sensor and a controller, the plugging components are arranged on one side of the gate body at equal intervals, and the opening and closing components are arranged on the other side of the gate body at equal intervals. The opening and closing assemblies are installed on the other side of the gate body at equal intervals, the opening and closing assemblies are connected with the plugging assemblies, the water level sensor is installed on one side of the gate body, the controller is installed on the other side of the gate body, the water level sensor is installed on one side of the gate body, and the controller is installed on the other side of the gate body. The water level of the rice field can be monitored in real time through the water level sensor, and when the water level sensor detects that the water level reaches the preset maximum value, the opening and closing assembly below the water level can be started to work, so that the corresponding blocking assembly is driven to be opened, water is discharged, water can be correspondingly discharged in the first time, and the rice field is prevented from being damaged.

The box culvert structure comprises a culvert and a flood discharge gate which is arranged at the outlet end of the culvert and can be opened, an overflow weir is arranged in the middle of the inlet end of the culvert, symmetrical concave plates are arranged on the side wall of the overflow weir and the inner wall of the culvert, pluggable water blocking plates are arranged in the concave plates, and the upper ends of the water blocking plates are higher than the upper end of the overflow weir. The overflow weir and the water blocking plate are matched to shield lake water outside the water facing opening of the culvert, so that when the lake water outside the water facing opening of the culvert is higher than the bottom end of the culvert, maintenance personnel can also enter the culvert to maintain a flood discharge gate in the culvert, and the maintenance does not affect the water level of the lake.

The utility model discloses a deep tail water channel structure arranged in a downstream river channel of a hydropower station workshop, which comprises a tail water channel arranged in the river channel, the longitudinal slope of the tail water channel is slowed down to the longitudinal slope of the river channel, and the channel bottom elevation of the starting end of the tail water channel is 5-30 meters lower than the riverbed elevation. The height difference between the surface of the tail water channel bottom plate and the surface of the riverbed is gradually reduced, and the tail water channel bottom elevation is consistent with the riverbed elevation when reaching the tail end of the tail water channel. According to the deep tail water channel structure arranged in the downstream river channel of the hydropower station workshop, it is guaranteed that power generation water heads are increased, and it can be guaranteed that tail water is smoothly discharged into the river channel.

The invention relates to the technical field of prefabricated water channels, in particular to a prefabricated water channel which comprises a left water channel body and a right water channel body, the left water channel body and the right water channel body are spliced and connected, a cover plate is fixed to the top ends of the left water channel body and the right water channel body, and observation holes are formed in the two sides of the cover plate in a penetrating mode; the left canal body is of a regular trapezoidal structure, the right canal body is of an inverted trapezoidal structure, the inner sides of the bottoms of the left canal body and the right canal body are each of an R-angle structure, and the inclination angle between the end face and the horizontal plane is 60 degrees. The end faces of the left canal and the right canal form the inclination angle of 60 degrees with the horizontal plane, construction can be completed only by assembling the prefabricated left canal, the prefabricated right canal and the prefabricated cover plate, and the construction period is greatly shortened; compared with a traditional prefabricated canal, the installation process does not need to depend on large hoisting equipment, the requirement for construction equipment is lowered, manpower and machine input is reduced, and the construction cost is remarkably reduced.

The barrier gate comprises a driving motor fixedly connected to one side of the top of a riverway, an output shaft of the driving motor is fixedly connected with a first rotating rod, a mounting seat is mounted in the riverway through a first supporting seat and a second supporting seat, then the driving motor is started, and the first rotating rod is fixedly connected with a second rotating rod. A driving motor drives a first rotating rod to rotate through a first supporting seat, the first rotating rod drives first gears on the two sides to rotate, the first gears drive a second gear at the bottom to rotate through a chain, the second gear drives a second rotating rod to rotate through a second supporting seat, meanwhile, the chain drives a fixing rod to move, and the fixing rod drives a connecting rod to move. The connecting rod drives the collecting rod to move, sundries intercepted at the trash rack can be cleaned and fished through the collecting rod, the collecting rod can be turned over through the chain, and the cleaned and fished sundries are conveyed out of the river channel through the collecting rod to be collected and cleaned, so that the purposes of cleaning the sundries in the river channel, preventing the river channel from being blocked and keeping water flow smooth can be achieved.

The utility model relates to the technical field of water conservancy irrigation discloses a water conservancy irrigation channel with impurity removing function, including channel body, the buffer filter mechanism of setting in the channel body, channel body includes the side wall of canal bottom and canal bottom both sides, the buffer filter mechanism still includes the arc buffer baffle of setting in the buffer filter space and the opening with water flow direction is opposite, and the interval between buffer baffle end and side plate forms filter mouth, and is equipped with filter plate at filter mouth, through the setting of buffer filter mechanism, filter plate is located at both sides of channel body, avoids the direct action of water flow on filter plate, and reduces the impact load that filter plate receives from the root, on the other hand, under the action of buffer baffle, water flow carries out once buffering, then water flow enters the circuitous space and realizes secondary buffering, thereby reducing water flow kinetic energy, further reduces the impact of water flow on filter plate.

The invention belongs to the technical field of water conservancy anti-seepage reinforcement, and discloses a flexible composite water conservancy slope anti-seepage reinforcement device which comprises a water conservancy slope body, an anti-seepage mechanism is installed at the top end of the water conservancy slope body, a reinforcement mechanism is arranged in the water conservancy slope body, and a pouring fixing mechanism is installed at the top end of the anti-seepage mechanism. Through cooperation of the shoreside fixing blocks, the high-strength plastic partition shed geotechnical cloth, the balance weight columns and other structures, the device can be rapidly laid to form a foundation impermeable layer to meet the water conservancy slope surface protection requirement, the shoreside fixing blocks are fixed to the top end of a water conservancy slope body to provide stable supporting, the high-strength plastic partition shed geotechnical cloth is laid to cover the slope surface, and the water conservancy slope surface protection requirement is met. The counterweight columns are inserted into the slope body through the self weight and the spine-shaped limiting columns, the connecting joints of the geotechnical cloth and the cement blanket are fixed, a pouring area is formed after the counterweight columns and the cement blanket are folded, a composite anti-seepage structure is formed in cooperation with follow-up pouring, and finally the effects of rapidly constructing a large-area slope anti-seepage foundation and improving the anti-seepage stability are achieved.

The utility model relates to the technical field of water conservancy irrigation, in particular to a water conservancy irrigation canal. Comprising a canal body assembly, a frame assembly and a flashboard assembly, the canal body assembly comprises an irrigation canal, bolts and a mesh cover plate, the frame assembly comprises a gate frame plate, the flashboard assembly comprises a flashboard, guide columns are symmetrically connected to the inner wall of the gate frame plate, and a water stop bottom plate is connected to the wall body of the lower bottom face of the gate frame plate. The lower end of the gate plate is connected with a water stop base plate, and the end, away from the gate plate, of the water stop base plate is connected with a water stop layer plate. Through arrangement of a guide column, a gate plate can be driven by a lead screw to ascend and descend, so that a filter screen is convenient to maintain and replace, a mesh cover plate is arranged at the top of the irrigation canal, the irrigation canal can have a certain protection effect, meanwhile, impurities are prevented from falling into the irrigation canal to influence water circulation, and the safety performance of the irrigation canal is also improved; and the accident that people fall into water is prevented.

The application discloses a mountainous navigation channel complex cross-section excavation method and belongs to the technical field of hydraulic engineering. The planned navigation depth H and the planned navigation width B of a navigation channel are determined according to navigation channel planning. A cross-section with insufficient water depth and a relatively narrow width is selected as a typical excavation cross-section. A typical calculation cross-section diagram is drawn according to the typical calculation measured terrain data points. A first excavation cross-section is excavated, and the first excavation cross-section is determined according to the typical calculation cross-section diagram. The excavation area of the first excavation cross-section is denoted as A11. A second excavation cross-section is excavated, and the excavation area of the second excavation cross-section is denoted as A12. The flow velocity reduction value of the typical calculation cross-section is calculated by assuming that the excavation area of the second excavation cross-section is A12 from small to large, until the flow velocity is reduced to the design requirement. The present application innovatively designs two cross-sections, which respectively meet the requirements of the navigation channel planning scale and the flow velocity reduction, and significantly reduces the water flow velocity, the earthwork excavation amount, the engineering cost and the earth dumping amount, and the environmental impact.

This utility model relates to the field of concrete drainage ditches and discloses a slipform track structure for cast-in-place concrete drainage ditches. The structure includes an inner plate, an outer plate, and a transverse sleeve. Both the inner and outer plates are L-shaped and interlock. Sliding rods are fixedly connected to the inner sides of both the inner and outer plates, and rod holes are formed on the edges of both plates. These rod holes correspond to the sliding rods and are slidably engaged with them. Furthermore, sliders are fixedly connected to the upper corners of the same surfaces of both the inner and outer plates. This utility model, by designing the drainage ditch slipform track structure to allow adjustment of the width and side slope angle of the formed drainage ditch, avoids the limitations of existing drainage ditch slipform track structures, which use fixed templates and cannot freely adjust the width and side slope angle of the formed drainage ditch. This allows for the selection of more suitable specifications based on the changing conditions of the construction site.

The utility model relates to the technical field of fixing supports, in particular to water drainage and drainage equipment for a water conservancy project. The device comprises a water channel, a lifting component and a baffle, a fixing device is arranged in the water channel and comprises two L-shaped plates, the sides, away from each other, of the two L-shaped plates are fixedly connected with the water channel, the sides, close to each other, of the two L-shaped plates are slidably connected with the baffle, one side of each L-shaped plate is fixedly connected with a fixing plate, and the other side of each L-shaped plate is fixedly connected with the lifting component. T-shaped grooves are formed in one sides of the fixing plates, T-shaped plates are slidably connected to the inner sides of the T-shaped grooves, a connecting plate is fixedly connected to one sides of the two T-shaped plates, and a reinforcing plate is fixedly connected to one side of the connecting plate. The problems that according to traditional water conservancy project drainage and drainage equipment, when the bottom of a baffle is in a local opening state, water flows outwards from an opening of the baffle, certain impact force is generated in the flowing process, the bottom of the baffle is continuously impacted, and the bottom of the baffle deforms are solved.

The present application relates to the technical fields of water conservancy and hydropower engineering, and discloses a multi-sediment bed load river channel water intake structure, which comprises a stable bed structure, a flow guide structure and a water intake structure, the stable bed structure is arranged perpendicularly to the water flow direction of the river channel, and one end of the stable bed structure is connected with one side of the river channel; one side of the flow guide structure is connected with the other end of the stable bed structure, and the other side is connected with one end of a flood discharge gate; the water intake structure comprises a water intake weir, a pre-sedimentation tank and a sand blocking ridge, the pre-sedimentation tank is arranged on the other side of the river channel, the outer wall of the pre-sedimentation tank is connected with the flood discharge gate, the water intake weir is arranged on the side of the pre-sedimentation tank close to the flood discharge gate, and the sand blocking ridge is arranged downstream of the pre-sedimentation tank, the present application stabilizes the river regime through the stable bed structure, narrows the river bed below the flow guide structure to discharge the bed load, and the water intake structure is used for water intake and sand setting, so that the problem of water diversion and sand prevention of the river channel water intake is solved, and the operation efficiency of the water intake system is improved.

The utility model relates to the field of farm irrigation, and discloses a water conservancy channel anti-seepage structure which comprises a water channel, two filter plates are fixedly connected in the water channel, an anti-seepage plate is placed between the two filter plates, fixing plates are fixedly connected to the portions, close to the two sides, of the top of the anti-seepage plate, and fixing bolts are connected to the tops of the two fixing plates in a threaded mode. The front portions of the two filter plates penetrate through the rear portions of the two filter plates, filter holes are formed in the front portions of the two filter plates, the filter plates are trapezoidal and fixedly attached to the inner walls of the water channel, the distance between the two filter plates is consistent with the width of the anti-seepage plate, a plurality of rows of containing grooves are formed in the front portion and the rear portion of the anti-seepage plate from top to bottom, and the containing grooves do not penetrate through the interior of the anti-seepage plate. By arranging the filter plate to be matched with the filter holes, the floating grass in the water channel is prevented from entering the farmland while the floating grass is still, and normal growth and development of crops are not affected.

The utility model discloses a cut-off device for water conservancy construction ditch construction, which relates to the field of water conservancy construction and comprises a mounting plate, a cut-off main plate is arranged at the bottom of the mounting plate, storage grooves are formed in the left side and the right side of the cut-off main plate, cut-off extension plates are arranged in the storage grooves, and a driving cavity is formed in the cut-off main plate. A driving adjusting assembly is arranged in the driving cavity, a fixing cover is connected to the top of the mounting plate, a threaded rod is connected into the fixing cover, a moving block is in threaded connection with the outer wall of the threaded rod, and a U-shaped frame is connected to the bottom of the moving block. The width of a ditch is obtained according to the scales on the mounting plate and the adjusting rod, an intermediate value is taken, the threaded rod is driven by the first motor to rotate, the threaded rod drives the moving block to move when rotating, the moving block pulls the U-shaped frame, the U-shaped frame pulls the intercepting main plate, and the intercepting main plate is moved to the middle of the obtained scales. Therefore, the intercepting main plate can be located in the middle of the ditch, and the ditch can be quickly intercepted.

The utility model discloses a water conservancy river channel trash holding flood prevention device which comprises a fixed base, side supporting frames are fixedly installed on the two sides of the top of the fixed base, a fixed trash holding plate is fixedly installed between the side supporting frames, and a movable trash holding plate is movably installed on one side of the fixed trash holding plate through a torsion adjusting assembly. The fixed trash blocking plate and the movable trash blocking plate are each provided with a plurality of water outlets communicating with one another, a material guiding and conveying assembly is installed on the side, located on the movable trash blocking plate, of the side supporting frame, and a washing driving assembly is installed at the bottom of the material guiding and conveying assembly. The river channel trash holding device has the advantages that river channel trash holding work can be achieved, flood prevention work can be achieved in the flood season, trash holding and flood prevention dual effects are achieved, and river channel trash can be conveniently collected, cleaned and recycled in the trash holding process.