37 results about "Steel dam" patented technology

The invention belongs to the technical field of hydraulic engineering operation and maintenance, and relates to a prediction and early warning method for operation settlement of a steel dam gate on a complex foundation, in the operation process of the steel dam gate, a multi-parameter sensor network is used for collecting settlement monitoring data of different positions of the steel dam gate, and input characteristics and output characteristics are determined; sorting and screening different input features by using minimum redundancy and maximum correlation, and screening out the input features of which correlation coefficients are lower than a threshold value by using Spearman rank correlation coefficients; a normalization and Kalman filtering iteration prediction model is adopted to preprocess the screened input features, and multivariable time series data are obtained; inputting the multivariable time sequence data into the trained multivariable regression prediction model to obtain a real-time settlement prediction value of foundation settlement; and comparing the real-time predicted value with a set multi-level early warning threshold value, and carrying out corresponding-level early warning on the settlement exceeding the warning limit.

The utility model discloses a high-strength hydraulic dam which comprises a base, a dam assembly, a hydraulic driving assembly and a supporting assembly. The base is fixedly built on a river channel through cement concrete, a flow intercepting groove is formed in the middle of the base, and mounting grooves are symmetrically formed in the two sides of the flow intercepting groove. The dam assembly comprises a steel dam body arranged in the intercepting groove, the lower portion of the steel dam body is rotationally arranged on the base through a bottom shaft, and the two ends of the bottom shaft extend into the mounting grooves in the corresponding ends correspondingly; the hydraulic driving assembly comprises two hydraulic cylinders hinged to the end walls of the two mounting grooves correspondingly, the plane where the axis of each hydraulic cylinder is located is perpendicular to the plane where the axis of the bottom shaft is located, and the telescopic ends of the two hydraulic cylinders are rotationally connected with the two ends of the bottom shaft through connecting frames. The supporting assembly comprises a plurality of supporting rods arranged in parallel. According to the steel dam, the structural strength after the steel dam body is turned over is guaranteed, and the stability of the vertical closure state is maintained.

The invention relates to an adjusting platform for mounting large embedded parts of a steel dam gate and a mounting construction method of the adjusting platform. An adjusting platform for installing a large embedded part of a steel dam gate comprises two supporting units. Each supporting unit comprises at least two longitudinal supporting rods, adjusting mechanisms corresponding to the longitudinal supporting rods in number, limiting supporting plates corresponding to the longitudinal supporting rods in number, a transverse supporting rod, a plurality of cushion blocks and a plurality of lateral supporting pieces. The longitudinal supporting rod comprises a lifting part and a fixed part which are not connected with each other; the adjusting mechanism comprises a sliding sleeve, a force exerting plate and a hydraulic jack. By means of the design of the adjustable adjusting platform, a firm, stable and reliable supporting frame can be provided for the large embedded part, the initial position plane and flatness of the large embedded part are guaranteed, after the large embedded part suspension is arranged on the adjusting platform, accurate position adjustment can be conducted through the adjusting platform, and the adjustment precision is improved. Therefore, a traditional hoisting adjustment mode is avoided, and the safety risk is greatly reduced.

1. Name of the designed product: rotating steel dam (270 degrees). 2. Use of the designed product: for controlling water flow in both directions of the dam. 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

The present application belongs to the technical field of turnover steel dam gate, and particularly relates to a turnover steel dam gate, which aims to solve the technical problem that when a relatively high water surge impacts on the gate, the impact force will directly act on the dam body, which is easy to cause damage to the dam body, and comprises a steel dam gate assembly, a hydraulic cylinder assembly, a buffer connecting assembly and a displacement adjusting assembly, the steel dam gate is connected with the hydraulic cylinder assembly, the hydraulic cylinder assembly is connected with the buffer connecting assembly, the buffer connecting assembly is connected with the displacement adjusting assembly, and the displacement adjusting assembly is connected with the steel dam gate assembly; in order to reduce the effect of the water surge on the concrete base, when the water surge impacts on the steel dam gate, the force is then transmitted to the concrete base through the hydraulic cylinder assembly, the absorption of the force is then realized through the inner end buffer spring between the hinged sliding block and the extruded sliding block, the impact force on the concrete base is then reduced, and the protection of the concrete base is then realized.

The utility model relates to the technical field of hydraulic steel dams, and discloses a device for accurately controlling the height of a hydraulic steel dam, which comprises a bottom plate and a mounting frame plate, a hydraulic control pump station and a control system are sequentially mounted at the top of the bottom plate from left to right, and a hydraulic steel dam panel and a hydraulic oil cylinder are mounted at the top of the mounting frame plate. The output end of the hydraulic oil cylinder is installed on the back face of the hydraulic steel dam panel, a tilt angle sensor is further installed on the back face of the hydraulic steel dam panel, a lubricating assembly is installed on the top of the installation frame plate and comprises a rotating shaft and a cylinder, the rotating shaft is installed on the outer wall of the hydraulic steel dam panel and rotates along with the hydraulic steel dam panel, and the cylinder is installed on the outer wall of the hydraulic steel dam panel. The side, away from the hydraulic steel dam panel, of the rotating shaft is fixedly connected with an eccentric wheel, and the barrel is installed at the top of the installation frame plate through a support. According to the utility model, through the cooperative work of the hydraulic control pump station, the control system and the tilt angle sensor, the height of the hydraulic steel dam panel can be accurately adjusted.

The utility model relates to an inside and outside water level difference monitor device for a steel structure dam body island-building cofferdam method. The inside and outside water level difference monitor device comprises a U-shaped clamp, a connecting rod, a guide pipe, a scale, a floating ball, a laser irradiation scale instrument and a laser horizontal calibration instrument, the U-shaped clamp is installed at the top of the cofferdam, the two sides of the U-shaped clamp are connected with the guide pipes through the connecting rods, vertical guide grooves are formed in the guide pipes, the scaleplate is inserted into the guide grooves and slides up and down along the guide grooves, and the floating ball is fixed to the lower end of the scaleplate. The laser horizontal calibration instrument is arranged at the top of the U-shaped clamp, and the laser irradiation scale instrument is arranged at the top of the scale. The utility model further relates to an inside and outside water level difference monitor system for the island-building cofferdam method of the steel structure dam body. The water level monitoring device is simple in structure, easy to popularize and assemble and disassemble, has certain universality, can visually display the water level difference in real time and synchronously monitor the water level at multiple points, and belongs to the technical field of monitoring devices in the water conservancy and municipal engineering construction technology.

The invention relates to the technical field of dam water stopping devices, and discloses a steel dam side water stopping device which comprises vertical plates, the two vertical plates are fixedly connected to the left side and the right side of the interior of a flap gate correspondingly, the outer sides of the vertical plates are fixedly connected with a mounting box, and the middle of the inner side of the mounting box is fixedly connected with a bag belt. And a connecting block is slidably connected to the front side of the interior of the mounting box, a second bolt is in threaded connection with the left side of the connecting block, water stopping rubber is in threaded connection with the left end of the second bolt, and first bolts are in threaded connection with the upper side and the lower side of the connecting block correspondingly. When the flap gate is closed, oil is filled into the bag belt to enable the bag belt to expand, the connecting block is pushed to slide along the mounting box, the water stop rubber is driven to be tightly attached to the side wall of the dam body for sealing, when the gate is opened, the bag belt contracts to enable the water stop rubber to retract and break away, friction and abrasion in the operation process are avoided, and the position and extrusion degree of the bag belt can be adjusted through the first bolt and the second bolt. And the abrasion is effectively reduced, so that the reliability of the device is improved.

The utility model discloses a steel dam for water conservancy project, including bottom horizontal axle, hinged seat, locking ear seat, locking support, branch pier, bottom axle drive arrangement and waterproof suit. The utility model discloses through hinged seat and locking ear seat through mechanical device connection, and the stability of steel dam structure has been effectively strengthened, has guaranteed the security and long -term use in the stability performance of steel dam in the operation process. The adjustable structure of locking support and locking ear seat can be adjusted according to actual conditions, so that the steel dam maintains good adaptability under different working environments, and the combination of motor, speed reducer and transmission device provides stable power output for the bottom axle drive arrangement, which can effectively drive the rotation of the bottom horizontal axle. The driving device can adapt to efficient operation under different load conditions, ensure normal use and continuous work of the steel dam, improve the automation level and operation convenience of the system, and the branch pier is made of high-strength steel, so that the steel dam has strong carrying capacity.

The utility model discloses a steel dam gate bottom shaft through-wall sealing device, and relates to the field of through-wall water sealing jackets, the steel dam gate bottom shaft through-wall sealing device comprises two water sealing jackets, the ends, close to each other, of the two water sealing jackets are fixedly connected with rubber rings, and the ends, away from each other, of the two water sealing jackets are integrally provided with connecting flanges; protruding rings are integrally formed in the middle sections of the outer walls of the two water sealing sleeves, screws penetrating out of the connecting flange are arranged at the ends, away from each other, of the two protruding rings, and the outer walls of the screws are in threaded connection with locking nuts for pressing the connecting flange. End face sealing pieces are installed on the end faces, close to each other, of the two end face sealing pieces, and the pressed connecting flange is used for driving the end face sealing pieces to be tightly attached to a wall. According to the water sealing sleeve, the protection mechanism and the installation mechanism are arranged, the installation mechanism can facilitate installation of the protection mechanism, the installed protection mechanism can protect the connecting flange on the inner side of the lock wall, and therefore the service life of the water sealing sleeve is prolonged.

The utility model discloses a hydraulic type steel dam which comprises a middle steel plate and side steel plates, concrete piles are arranged on one sides of the side steel plates, a shaft rod is horizontally arranged between the bottoms of the concrete piles, a plurality of sleeves are tightly and evenly arranged on the shaft rod in a sleeved mode, and one ends of the middle steel plate and the side steel plates are connected with the sleeves. A plurality of hinged supports are evenly arranged on the concrete river surface, the sleeves are arranged in grooves in the upper ends of the hinged supports, a plurality of bases are evenly arranged on the concrete river surface, and hydraulic rod mechanisms are arranged between the middle steel plate and the bases and between the side steel plates and the bases. The middle steel plates and the side steel plates take off and land under the action of the hydraulic rod mechanism, and when the water amount is small, the drainage requirement can be met only by opening one middle steel plate or one side steel plate; when the water quantity is large, all the middle steel plates and the side steel plates can be opened, a large amount of water can be drained in a short time, and the drainage efficiency is greatly improved.

The invention discloses a wall-penetrating-free shaft-penetrating steel dam gate opening and closing device which comprises a gate body, and the bottom of the gate body is rotationally connected between two gate piers. The opening and closing mechanism comprises a rail, the rail is fixed to the gate piers and is of an arc-shaped structure, mounting arms are fixed to the two sides of the gate body correspondingly and slidably connected to the rail, and a driving assembly is mounted on the rail; the ventilation damping mechanism is installed on the side face of the gate body, a flow guide plate is installed at the top of the gate body, an airflow channel is formed in the flow guide plate in the length direction, a plurality of ventilation holes are formed in the back face of the gate body, the ventilation holes communicate with the airflow channel, and the airflow channel communicates with the ventilation damping mechanism; the mounting arm is located on the front side of the gate body. The problems of difficult sealing, easy abrasion, inconvenient maintenance and the like possibly caused by wall-penetrating and shaft-penetrating are solved, the failure rate of the device is reduced, and the maintenance cost and workload are reduced.

The utility model discloses a steel dam lock anti -collapse safety device, including steel gate, the right side of crank arm is provided with locking assembly, and the right end of support axle is provided with auxiliary support assembly, can make follow -up plate drive locking plug to move to forward side and be stuck in corresponding locking groove through the control hydraulic oil cylinder extension, and the steel gate is locked to steel gate through locking wheel and support axle to avoid the wobble collapse condition of steel gate during long -term berthing process to fixed limit rail can also be through the limit guide groove and follow -up plate limit guide, and the second reinforcing piece can improve the connection stability between locking plug and follow -up plate, to this guarantee the use stability of locking plug, through the installation support base and auxiliary support ring, can be through the extension axle and the right end of support axle auxiliary support limit, avoid the wobble condition of support axle in the use process, to this guarantee the use stability of support axle.

The invention relates to the technical field of water conservancy steel dam gates, in particular to a steel dam gate with a silt cleaning function, which comprises a gate body, a rotating shaft and a driving structure, and further comprises a silt cleaning structure arranged in the gate body, and the silt cleaning structure comprises a liquid spraying part and a gate body cleaning part; the liquid spraying part is arranged in the gate body and can swing outwards from the inside of the gate body to spray liquid on the surface of the gate body, and the gate body cleaning part is matched with the outer surface of the gate body for scraping silt on the outer surface of the gate body. The problem that silt accumulated on the surface of an existing steel dam gate is inconvenient to clean is effectively solved. The silt cleaning structure arranged in the sluice body is adopted, a liquid spraying part in the silt cleaning structure moves out of the interior of the containing sluice body to spray the outer surface of the sluice body, silt on the surface of the sluice body is softened, and after the silt is softened, the softened silt can be synchronously scraped through the sluice body cleaning part; and silt on the gate body can be better cleaned.

The construction method for improving the self-standing and stability of an open type shallow buried steel structure dam body island cofferdam belongs to the technical field of water conservancy and municipal engineering. In view of the defects of self-standing and stability caused by the fact that the open type steel structure dam body island cofferdam cannot be closed in a ring and the shallow buried anchoring is insufficient, the application constructs a water level natural balance initial state through reserving upstream and downstream ports, and solves the problems of insufficient shallow buried anchoring and uneven initial stress by synchronous filling. Combined with the change law of river tides, layered and collaborative filling is implemented, the sand and gravel layer is naturally compacted by using the advance and retreat of tides, and the dependence on additional ramming equipment is reduced. By reasonably controlling the filling height difference inside and outside the dam body, a compression and tension composite stress system is constructed, a self-balancing system of compression and tension composite stress is formed, and the defects of the open structure closed loop are effectively made up. The method effectively improves the self-standing and stability of the dam body, takes into account the economy and efficiency, adapts to complex geological and hydrological conditions, and is suitable for large-span and long linear construction sites.

This utility model relates to the field of steel dam gate technology, and in particular to a hydraulic steel dam gate with a sand-clearing structure. It includes a steel dam gate mechanism for sand clearing. The steel dam gate mechanism includes: a main component comprising guide rails fixed at both ends of the inner wall of a frame, with a gate slidably installed between the guide rails; and a sand-pushing component comprising a push plate located at the lower end of the inner wall of the frame, a guide frame fixed to the push plate and penetrating the frame, a shaft rotatably installed inside the outer end of the guide frame, and first hydraulic cylinders installed at both ends of the outer wall of the frame. A guide seat is fixed at the output end of the first hydraulic cylinder, and a guide groove is provided inside the guide seat, with the shaft located inside the guide groove. The sand is first pushed to the center by the sand-pushing mechanism, and then collected and removed by a flipping scraper. Automated sand clearing is achieved through hydraulic drive, ensuring no sand accumulation at the bottom when the gate is closed, thus guaranteeing sealing and avoiding motion interference, significantly improving operational reliability.

The invention discloses a steel dam water stopping device which comprises a steel dam unit arranged in a river channel and used for stopping water in the river channel. The water stopping unit comprises side water stopping assemblies arranged on the two sides of the steel dam unit and used for stopping water in the gap between the steel dam and the river channel, and a bottom water stopping assembly arranged at the bottom of the steel dam unit and used for stopping water in the transition area of the bottom of the steel dam unit and the river channel. The bottom water stop assembly is directly transited in the gap between the dam body and the bottom of the river channel, so that the gap between the dam body and the bottom of the river channel is blocked, and the whole blocking mode does not need to limit the bottom shaft through a flange of the bottom shaft and a concave notch in the upper portion of a hinged support; and the flange of the bottom shaft and the concave notch in the upper part of the hinged support are prevented from leaking water or being blocked by foreign matters such as stones.

The utility model discloses a steel dam gate bottom transverse shaft locking device, and belongs to the technical field of water conservancy projects. Comprising a bottom transverse shaft, a crank arm is fixedly arranged on the bottom transverse shaft, a locking rainbow bridge is fixedly arranged above the bottom transverse shaft, the crank arm covers the outer side of the locking rainbow bridge and can rotate along the locking rainbow bridge, a plurality of L-shaped locking grooves are formed in the bottom of the locking rainbow bridge, a locking rod located below the locking rainbow bridge is hinged to one end of the inner side of the crank arm, and a locking oil cylinder is rotationally arranged on one side of the crank arm; the output end of the locking oil cylinder is hinged to the lower end of the locking rod. According to the bottom transverse shaft locking device, through cooperation of the locking oil cylinder and the locking rod, when the piston rod of the locking oil cylinder stretches out, the locking rod is pushed to rotate, and when the end of the locking rod reaches the L-shaped locking groove in the locking rainbow bridge, locking is completed, the locking effect is good, the structure is stable after locking, the structural design is scientific and reasonable, the structure is simple, disassembly, assembly and maintenance are convenient, and the practicability is high. The practicability is high.

The application relates to a side water seal structure of a hydraulic steel dam gate. The application is suitable for the technical field of water conservancy and hydropower engineering. The application aims to provide a side water seal structure of a hydraulic steel dam gate. The application adopts the technical scheme that a side water seal structure of a hydraulic steel dam gate is installed in a river channel through a hinge piece, and comprises the following: first water seal pieces arranged on the two sides of the hydraulic steel dam gate along the edges of the face plates of the hydraulic steel dam gate; and second water seal pieces arranged on the two sides of the bottom rotating end of the hydraulic steel dam gate, wherein the end portions of the second water seal pieces are connected with the first water seal pieces, the second water seal pieces are arranged in an arc shape along the edges of the rotating end, the outer edges of the hydraulic steel dam gate are flush with the outer edges of the second water seal pieces, and the second water seal pieces are provided with a pre-pressing amount.

The utility model discloses a steel dam driven by a bottom shaft, which comprises a cylindrical bottom shaft, a hinged support is arranged below the bottom shaft, the bottom shaft is connected with one end of the steel dam, concrete piles are arranged at two ends of the steel dam, and hydraulic rod mechanisms and crank arms are arranged in cavities of the concrete piles. A bottom shaft is reliably supported through a plurality of hinged supports, a steel dam is driven by the bottom shaft to rotate, a hydraulic rod mechanism is arranged on a base in a cavity, the stability of the position of the hydraulic rod mechanism is guaranteed, the hydraulic rod mechanism can rotate within a certain angle along a shaft rod, one end of a crank arm is reliably connected with the bottom shaft, and therefore the stability of the steel dam is guaranteed. The hydraulic rod mechanism drives the crank arm to move, then the steel dam is driven to rotate through the bottom shaft, corrosion of the hydraulic rod mechanism is avoided, and normal use of the steel dam is guaranteed.

The application discloses a steel dam water-stopping device, which comprises a steel dam unit arranged in a river channel and used for water retaining of the river channel, and a water-stopping unit comprising side water-stopping components arranged on both sides of the steel dam unit and used for water-stopping of the gap between the steel dam and the river channel and a bottom water-stopping component arranged at the bottom of the steel dam unit and used for water-stopping of the transition area between the bottom of the steel dam unit and the river channel. The gap between the dam body and the river channel bottom is directly transitioned by the bottom water-stopping component, so that the gap is blocked, and the whole blocking mode does not need to limit the bottom shaft by the flange of the bottom shaft and the concave gap on the upper part of the hinge base, thereby avoiding water leakage or blockage of foreign matters such as stones at the flange of the bottom shaft and the concave gap on the upper part of the hinge base.

The utility model relates to the technical field of hydraulic engineering, in particular to a steel dam gate with a silt flushing structure, which comprises a bottom shaft rotatably arranged on a gate sill and a gate leaf fixedly connected with the side wall of the bottom shaft, and a trash cleaning mechanism is arranged in the gate leaf and used for cleaning silt deposited in a gate chamber area. The sewage disposal mechanism comprises high-pressure sludge pumps and a water outlet main pipe, the high-pressure sludge pumps are fixedly connected into the gate leaf at equal intervals, and a water inlet is formed in the left end of the gate leaf and connected with the high-pressure sludge pumps. The high-pressure sludge pump is started to generate high-pressure water flow, and when the gate leaf rotates to open the gate, the high-pressure water flow sprayed by the second duckbilled spray head is used for effectively cleaning sludge in the gate chamber, so that normal operation of a dam and a water gate is guaranteed.

The application relates to the technical field of turnover steel dam gate, in particular to a steel dam gate driven by a hydraulic motor, which comprises a bottom horizontal shaft and gate leaves fixedly arranged along the length direction of the bottom horizontal shaft, both ends of the bottom horizontal shaft are provided with opening and closing chambers, both ends of the bottom horizontal shaft extend into the corresponding opening and closing chambers and are fixedly arranged with output shafts of the hydraulic motor, and the bottom horizontal shaft is rotationally connected with the two opening and closing chambers. The bottom horizontal shaft, the gate leaves and the gate plate are arranged, when the steel dam gate is in an open state during use of the device, the gate leaves are in a horizontal state, the gate plate moves upwards at this moment and is in an open state, that is, the gap between the gate plate and the bottom plate is unsealed, water from the upstream normally passes above the gate leaves and also passes through the gap between the bottom horizontal shaft and the bottom plate, so that the silt accumulated at the position where the back side of the gate plate contacts the bottom plate is washed away by the water flow, and the function of dredging is realized when the steel dam gate is in an open state.

The utility model discloses a hydraulic steel dam gate and relates to the field of gates, the hydraulic steel dam gate comprises a first door plate, a second door plate and a hydraulic cylinder, a mounting groove is formed in the outer wall of one side of the first door plate, a mounting mechanism is arranged in the mounting groove, and the mounting mechanism comprises a driving plate rotationally mounted in the mounting groove; and rotating plates are rotationally mounted on the two sides of the driving plate. Under the cooperation effect of a driving plate and the like, a rotary knob is rotated to drive a fixing column and the driving plate to rotate, the driving plate rotates to drive two rotating plates to rotate along with the rotary knob, and two hinge plates and two positioning plates are pushed to be away from each other; and the two positioning plates are far away from each other, so that the two connecting blocks can be positioned and mounted, the width of the single hydraulic steel dam gate can be quickly adjusted according to the overall mounting width, and the convenience and flexibility of the overall hydraulic steel dam gate during mounting can be improved.

The utility model provides a water diversion desilting and sand washing structure. The water diversion desilting and sand washing structure comprises a water diversion channel arranged on one side of a river channel. The side, close to the river channel, of the diversion channel is provided with a diversion channel side weir, and the side, away from the river channel, of the diversion channel is provided with a diversion channel revetment; the upstream end of the water diversion channel is provided with a river retaining hub building, and the river retaining hub building comprises a water diversion channel inlet sand blocking ridge, a pneumatic steel dam and a river retaining overflow dam which are sequentially arranged side by side. A water inlet gate is arranged at the downstream end of the water diversion channel, a water inlet gate sand blocking ridge is arranged on the upstream of the water inlet gate, and a sand flushing gate is arranged between the water inlet gate sand blocking ridge and the tail end of the water diversion channel side weir. According to the utility model, an innovative system of'two-stage desilting, three-dimensional sand washing and dynamic regulation and control 'is adopted, and the technical problems of water diversion, sand washing, flood discharge and the like of a hub are solved.

The utility model relates to an efficient water stop sealing device of a hydraulic steel dam gate, and belongs to the technical field of steel dam gates. The efficient water stop sealing device of the hydraulic steel dam gate comprises a gate frame, the steel dam gate is rotationally connected to the gate frame, a hydraulic driving device for driving the steel dam gate to turn over is installed on the gate frame, and a water stop mechanism for sealing a gap between the gate frame and the steel dam gate is installed on the gate frame; the water stopping mechanism comprises water retaining vertical plates symmetrically arranged on the gate frame, a water retaining transverse plate is fixedly connected to the lower positions of one sides of the two water retaining vertical plates, and sealing strips are fixedly connected to the same sides of the water retaining vertical plates and the water retaining transverse plate. The water stopping mechanism is arranged, when the hydraulic driving device drives the steel dam gate to move towards the water retaining transverse plate and the water retaining vertical plate, the steel dam gate makes contact with the sealing strip, the sealing strip is extruded through the pressure of the steel dam gate, the sealing strip deforms, sealing is formed between the steel dam gate and the water retaining vertical plate and between the steel dam gate and the water retaining transverse plate, and water leakage is avoided.

The invention discloses a steel dam bottom water stop device, which comprises a steel dam unit, which comprises a steel dam body arranged in a river channel and used for intercepting water in the river channel, a bottom shaft arranged at the lower end of the steel dam body and used for rotatably adjusting the steel dam body, and an arc-shaped plate arranged at one end of the steel dam body, which is positioned in the river water and used for retaining water for the bottom shaft; the water stopping unit comprises a first base assembly arranged at the lower end of the bottom shaft and used for supporting the bottom shaft, and a second base assembly arranged on one side of the first base assembly and used for being matched with the first base assembly to seal the arc-shaped plate. A water stopping assembly which abuts against the side portion of the arc-shaped plate and is used for stopping water on one side of the arc-shaped plate is arranged on the upper portion of the second base assembly. Foreign matter deposited on the outer side of the arc-shaped plate is blocked through the water stopping assembly, the foreign matter in the river channel is prevented from being clamped into a gap between the arc-shaped plate and a second limiting arc groove, and therefore the situation that the foreign matter is clamped between the bottom shaft and the first base assembly, and consequently the outside of the bottom shaft is abraded is further avoided.

The utility model discloses a steel dam gate, including gate leaf, bottom axle, support device, open and close device and speed reducer, gate leaf bottom is fixedly connected with bottom axle, and support device includes a plurality of support hinge seat, and bottom axle is placed on the semicircular top support surface of support hinge seat, and open and close device includes swing hydraulic cylinder, and both ends of bottom axle are connected with swing hydraulic cylinder, and swing hydraulic cylinder is fixed on the bank outside the lock wall, and swing hydraulic cylinder is connected with bottom axle through speed reducer, and speed reducer is fixed on the bank outside the lock wall, and swing hydraulic cylinder drives bottom axle to rotate to drive gate leaf to overturn, and the rotation angle of bottom axle is 0~90 DEG, and bottom axle drives gate leaf to overturn in the range from vertical to horizontal or from horizontal to vertical. The utility model discloses through speed reducer realizes the amplification of torque, and swing hydraulic cylinder of smaller torque can satisfy the demand, and reduces the cost, and swing hydraulic cylinder and speed reducer are fixed on the bank outside the lock wall, and the construction difficulty is reduced, and the construction period is shortened.

The utility model discloses a bottom axle cambered surface steel dam body convenient to installation relates to steel dam technical field, and this bottom axle cambered surface steel dam body convenient to installation includes bottom mounting panel, two side surface mounting panels and a plurality of anti -drop bolt, the bottom mounting panel is fixedly connected with the bottom of dam body water channel through anti -drop bolt, and two side surface mounting panels are fixedly connected with the both sides of dam body water channel through anti -drop bolt, and the rotating shaft is arranged between two side surface mounting panels, and a plurality of rotating pieces are rotatably installed to the outside equidistance of rotating shaft, and the top of a plurality of rotating pieces is staggered and is provided with first gate and second gate, the utility model discloses convenient to install and strong stability, and the quick fixing of bottom mounting panel, side surface mounting panel and dam body water channel is realized through anti -drop bolt, and the bolt main body cooperation inserts peg, spring and other structures, has anti -loosening, anti -drop function, can be firmly embedded in concrete, and the installation intensity and stability are greatly promoted.

The utility model relates to a steel dam gate for ecological water storage, which comprises a flashboard component, a hollow rotating shaft is fixedly mounted at the bottom of the flashboard component in a penetrating manner, operating wells are arranged on soil on two sides of the flashboard component, two ends of the hollow rotating shaft penetrate into the operating wells on two sides, and a driving motor is arranged in one operating well and connected with the hollow rotating shaft. A heating power source is arranged in the other operation well, a heat tracing band is arranged in the hollow rotating shaft and connected with the heating power source, and a plurality of supporting and limiting assemblies are arranged on the rear side of the flashboard assembly in the rotating direction. The heat tracing band is arranged in the hollow rotating shaft, so that heating can be performed through the heat tracing band when the temperature is low, and the consequence of unsmooth opening and closing rotation caused by the fact that the outside of the hollow rotating shaft is frozen is avoided; the supporting and limiting assembly can support the flashboard assembly, so that the flashboard assembly is more stable when being impacted by water flow, the flashboard assembly can be protected, the opening angle of the flashboard assembly can be controlled, and the proper supporting and limiting assembly can be selected.