58 results about "Steel dam" patented technology

The invention discloses a fully-enclosed steel dam gate. The fully-enclosed steel dam gate comprises a bottom transverse shaft, a steel dam door leaf and a hoist arranged in a gate chamber; the two ends of the bottom transverse shaft penetrate through the wall of the gate chamber to connect the hoist, and the bottom transverse shaft is driven to rotate by the hoist; the steel dam door leaf is connected with the bottom transverse shaft to form a gate; a sealing component is arranged at the position where the side of the steel dam door leaf is contacted with the wall of the gate chamber; the sealing component comprises a fixed seat and a sealing adhesive tape; the fixed seat is arranged on the side of the steel dam door leaf; the sealing adhesive tape is arranged at the outer end of the fixed seat and is closely pressed against the wall of the gate chamber; meanwhile, a spring or a spring oil cylinder is also arranged on the fixed seat to jack the sealing adhesive tape so that the sealing adhesive tape is in interference fit with the wall of the gate chamber; two Y-shaped sealing rings are respectively arranged at the positions, penetrating through the wall of the gate chamber, of the two ends of the bottom transverse shaft in parallel. By the fully-enclosed steel dam gate, a good sealing effect of the steel dam gate also can be guaranteed when the bottom transverse shaft is deviated or the wall of the gate chamber is not flat.

The invention relates to a steel dam space truss structure unit body and an arch-style steel dam. The unit body is a hexahedral space truss structural body with a front end surface and a rear end surface in key pattern structures and other lateral surfaces in a stud link chain structure, connecting rods are respectively arranged between a central node O of the front end surface and other nodes, supporting connecting rods are respectively arranged between four middle nodes A,B,C and D of the front end surface and four vertexes of the rear end surface, and supporting connecting rods are respectively arranged between a central node O' of the rear end surface and the four vertexes of the rear end surface. The steel dam, which is a space truss structure with a curve upstream surface, is formed by combining the space truss structure unit bodies, an eliminator is fixed on the curve upstream surface, the bam bottom of the steel dam is fixed with a reinforced concrete bearing platform, and both sides of the steel dam are respectively fixed with the stepped bearing platform formed by reinforced concrete structures at both banks. The steel dam is kept stable mainly by the counteraction of arc ends at both banks and has strong overload capacity, high degree of safety and engineering investment saving.

The invention discloses a hydraulic driving system for a hydraulic driving bottom shaft rotating steel dam valve, which comprises an electric control system and a hydraulic system, wherein the electric control system comprises a PLC (Programmable Logic Controller), a human-computer interface, an expansion machine and a remote centralized control interface, wherein the human-computer interface, the expansion machine and the remote centralized control interface are all connected with the PLC; the hydraulic system comprises a left hydraulic system and a right hydraulic system which are same in structure and are arranged on two sides of a steel dam valve; the left hydraulic system comprises a hydraulic cylinder and a locking hydraulic cylinder; and the hydraulic cylinder and the locking hydraulic cylinder are connected with a same oil tank through oil paths. The hydraulic driving system for the hydraulic driving bottom shaft rotating steel dam valve has the advantages of simple structure, smart design, convenience in use and maintenance, convenience in production and manufacturing, easiness in assembling, high degrees of automation and reliability, excellent practical applicability and capability of generating excellent economic benefit and social effect.

The invention relates to a multi-stage telescopic type steel dam, which is arranged on a riverway cross section. A foundation part is a concave concrete foundation which is positioned under a riverbed, a rectangular steel dam groove is formed in the middle part of the foundation part, the center of the bottom part of the steel dam groove is provided with a water injection opening, the steel dam part consists of a first-stage steel dam, a second-stage steel dam and a third-stage steel dam which have the same structure and sequentially sleeve the interior of the rectangular steel groove from interior to exterior, three convex slideways are respectively arranged at the two side surfaces of each stage of steel dam, waterstop rubber is respectively and fixedly arranged at the upper end and the lower end of each steel dam, a water inlet and outlet pipeline comprises a water inlet pipeline, a water inlet valve, a water outlet pipeline and a water outlet valve, a steel dam water injection pipeline comprises a water injection pump, a water injection valve and a water draining valve, and the water injection pipeline is communicated with the water injection opening at the bottom part of the steel dam groove. The multi-stage telescopic type steel dam has the advantages that the structure is novel, the operation is easy, the property is reliable, the construction workload is small, and the resource is saved; as the full steel structure is adopted, compared with the traditional structure, the stability and anti-scouring capability are higher, and the technical benefits and economic suitability are better.

The invention relates to a steel gate, belonging to the strobe technical field, and is an improvement of the existing steel structure strobe structure. A provided lower shaft is rigidly connected with a bottom edge of a gate leaf hemline, and a driving member, such as a connecting rod, a gear, or a fan gear, is connected at the two near ends of the lower punch shaft. When in installation, the two ends of the lower shaft of the invention are in a support, and drive the connecting rod to swing under the function of a corresponding driving device, or lead the gear or the fan gear to rotate, so as to drive the lower shaft to rotate within a certain angle scope and lead the gate leaf do fan-shaped movement, and thus controlling the water level. The invention has simple structure and reliable performance, and can establish the door to store water and lower the door to pass water, and the strobe gateway top can be utilized to pass water to form a waterfall sight effect, thus utilizing the nature without destroying the nature, solving the conflict between city channels flood control and water storage, and is beneficial to the ecological environment protection.

The invention relates to a hydraulic herringbone steel dam which is mainly applied to the construction field of water conservancy projects such as damping and impounding in rivers and reservoirs, farm irrigation, small hydroelectric stations and the like. The hydraulic herringbone steel dam is composed of a plurality of water damping panel units according to different water damping surface widths, all the water damping panels are firmly fixed into a dam foundation by bed shafts through hinge pedestals, the reverse sides of the water damping panels are connected with big hydraulic cylinders and supporting systems, and the water damping panels are driven to rotate by controlling the stretching of the hydraulic cylinders, therefore, dam erecting and laying are achieved; and when the water damping panels reach a designed supporting position, the supporting systems come into play, and form a stable triangular supporting structure with the water damping panels and the dam foundation. The hydraulic herringbone steel dam provided by the invention has a simple structure, is quick in dam erecting and laying, is safe and reliable, economic and durable, and is free of limitations from water quality and location.

The invention relates to a hydraulic rotation steel dam mainly applied to the field of water retaining and storing in river ways and reservoirs, the field of farm irrigation and the building field of water conservancy projects such as small hydropower stations. The hydraulic rotation steel dam is composed of a plurality of water-retaining face plate units according to the width of a water-retaining surface, each water-retaining face plate is firmly connected to a dam foundation through a bottom shaft and a hinge support, the middle of each bottom shaft is firmly connected with a transmission rod into a whole, the other end of each transmission rod is connected to a hydraulic cylinder, and each hydraulic cylinder is fixed to the dam foundation. By controlling telescoping of the hydraulic cylinders, the bottom shafts and the water-retaining face plates are driven to rotate, and therefore dam erecting and releasing can be realized. The hydraulic rotation steel dam is simple in structure, fast to erect and release, safe, reliable, economical, durable and free of limitation of water quality and regions.

The invention discloses a foldable steel dam bottom shaft watertight structure in the technical field of steel dam gates. The foldable steel dam bottom shaft watertight structure includes a bottom shaft fixed at the bottom of a gate leaf, wherein the bottom shaft is fixed on a concrete foundation through a hinged support; a water sealing element is arranged between the gate leaf and the concrete foundation; the water sealing element includes link plate assemblies corresponding to the two ends of the gate leaf; the two link plate assemblies are connected through a rubber band; the upper end of the rubber band is hermetically connected with the gate leaf, and the lower end of the rubber band is hermetically connected with the concrete foundation; the two ends of the rubber band extend out of the link plate assemblies; and each link plate assembly includes a plurality of link plates that are sequentially hinged. The rubber band can be folded and sealed at will and can be reliably supported by adopting the link plate assemblies at the two ends thereof, as a result, the two ends of the rubber band can be permanently attached onto the gate wall during the rotation of the gate leaf, and water leakage is avoided; the device is satisfactorily sealed and highly reliable to use, and has a simple structure; and the foldable steel dam bottom shaft watertight structure adopts the link plates for sealing by changing the functions of the link plates, so as to achieve an unexpected effect.

The invention relates to a field installation process of a large-span high-water-head hydraulic driving type steel dam gate, belonging to the technical field of water conservancy engineering. In the field installation process of the hydraulic bottom-shaft driving type flap gate, all related members and parts are respectively manufactured in a manufacturer by dismemberment, and are transported to a construction site in batches for field installation and staged debugging. The installation process flow comprises the following steps of: lifting preparation of a bottom shaft I and a support assembly part, in-place lifting, position adjustment of elevation and planes, wall penetration and pipe sheathing, water seal installation, in-place lifting of a crank arm, a bottom shaft II and the support assembly part, welding of the bottom shaft I and the bottom shaft II by a flange, rotary debugging of the crank arm and the bottom shafts, installation, adjustment and secondary concreting of bottom sills and gate pier side-wall embedding pieces, assembly of gate flaps and the bottom shafts, idle-load debugging, water stopping installation, installation of a hydraulic opening and closing machine and single-hole debugging. The field installation process is safe and reliable; the technical difficulty in transportation, installation and debugging and the production cost are reduced; the working efficiency is improved; and a successful example is provided for the technical field.

The invention discloses a steel dam gate opened and closed by a direct connection type opening and closing machine. The steel dam gate comprises a steel dam gate body which is fixedly mounted on a gate door bottom shaft, and further comprises an opening and closing machine room, wherein the gate door bottom shaft is fixed in a river way through a plurality of steel dam gate trunnions; the openingand closing machine room is arranged at the outer side of a river levee at the two ends of the gate bottom shaft; a power device is arranged in the opening and closing machine room; the power output shaft of the power device is connected to the two ends of the gate bottom shaft through a planetary reducer; the planetary reducer is inserted into the inner diameter of a circular tube of the gate bottom shaft; the planetary reducer is fixedly mounted on the end surface of the gate bottom shaft through a flange plate; and a gate horizontal supporting cushion and the steel dam gate trunnions are arranged in the river way in a rotation direction of the steel dam gate in parallel. The steel dam gate solves the defects that an existing steel dam gate hydraulic opening and closing machine is greatin floor space, hydraulic equipment is complex, and maintaining difficulty is great, is convenient for maintaining and prolonging the service life, and reduces production and maintenance cost better.

The invention discloses a straight push type steel dam. The straight push type steel dam comprises a steel dam door leaf arranged between a left side wall and a right side wall. The straight push typesteel dam is characterized in that the bottom of the steel dam door leaf is connected with a dam body through a bottom cross shaft, and the steel dam door leaf swings around the bottom cross shaft; one or more pits in a row are formed in the position, on the air face of the steel dam door leaf, of the dam body; lifting oil cylinders are arranged in the pits, the front ends of piston rods in the lifting oil cylinders jack the back of the steel dam door leaf, the pistons stretch and shrink to push the steel dam door leaf to swing upwards or downwards, the front ends of the piston rods on the side close to the bottom cross shaft are connected with stay ropes, the other ends of the stay ropes are fixed to the positions, between the lifting oil cylinders and the bottom cross shaft, of the dambody, along with the stretching-out action of the piston rods, the piston rods are obliquely pulled by the stay ropes to one side of the steel dam door leaf, and the front ends of the piston rods always jack the steel dam door leaf; and limiting devices for applying multi-position positioning to the steel dam door leaf are arranged between the left side wall and the steel dam door leaf and betweenthe right side wall and the steel dam door leaf, the limiting devices are spring bolts stretching and shrinking laterally, and when the spring bolts stretch out, downward swinging of the steel dam door leaf is stopped.

The invention discloses a dragline buttress steel dam, which comprises buttresses, water-retaining steel structures and pedestals, wherein steel structure panels positioned among the buttresses form dam sections; the steel dam comprises a plurality of the dam sections; seams are formed among the dam sections; the buttresses comprise reinforced concrete buttress bodies, draglines and drain structures; the draglines are placed on the upstream surfaces of the buttresses and are anchored inside the buttresses through anchoring structures; the drain structures are placed on the buttresses on the dam sections of a middle river bed; the reinforced concrete pedestals are arranged on a base; and bottom holes are formed in the pedestals. The dragline buttress steel dam has the characteristics of flexible project layout, simple structure, stability and reliability, and can adapt to a higher water-retaining head (70 m) and larger discharge. Compared with the scheme of a traditional concrete gravity dam, the dragline buttress steel dam can save more than 15 percent of engineering investment within the dam height of 70 m under the same external conditions and functional requirements.

The invention discloses a multi-angle locking device for a bottom shaft of a steel dam gate and belongs to the technical field of the steel dam gate. The multi-angle locking device comprises a main body angle locking part, a mounting base, a main hinging base, a micro-control unit, an angle correcting mechanism and a shaft deviation detecting mechanism, wherein the main body angle locking part isused for controlling the reversion angle of a main body of the bottom shaft; the main hinging base is fixed to the mounting base and is used for movably supporting the periphery of the main body of the bottom shaft; the angle correcting mechanism is used for correcting the reversion angle of the main body of the bottom shaft; and the shaft deviation detecting mechanism is used for monitoring the axial deviation of the main body of the bottom shaft. The multi-angle locking device disclosed by the invention can be used for correcting the reversion angle of the main body of the bottom shaft and can also be used for observing the shaft deviation of the main body of the bottom shaft.

The invention discloses a steel dam gate convenient to install, and belongs to the technical field of gates. The steel dam gate convenient to install comprises a bottom shaft. The bottom shaft is supported on a plurality of hinged bases which are fixedly arranged at the bottom of a watercourse. The two ends of the bottom shaft penetrate through walls to be inserted into hoist rooms. A hoist is arranged inside each hoist room. The end portions of the bottom shaft are connected with the hoists through connecting levers. Gate leaves for stopping water are connected to the bottom shaft. The bottom shaft is connected with the walls through sealing supporting pieces. Each hinged base comprises an arc section. The bottom shaft is supported on the arc sections in a rotatable mode. The central angle of each arc section is 90 degrees to 180 degrees. A water stop piece is arranged on one side of the upper stream of the watercourse and abuts against the outer side of the bottom shaft. According to the steel dam gate convenient to install, unit-separating manufacturing according to the number of the hinged bases is not required, the number of the hinged bases can not be limited, a steel dam is wholly placed in the hinged bases after assembly is finished, taking-in-position after the assembly can be achieved, therefore, the assembly construction site and the assembly working space position are free, site installation workloads are greatly reduced, and the steel dam gate convenient to install can easily achieve sealing.

The invention belongs to the technical field of gates, and particularly relates to a protection device on a waterscape steel dam gate nozzle and a waterscape steel dam gate. The protection device comprise the ground, a waterscape dam arranged at the upper end of the ground, a driving device arranged at the bottom end of the interior of the waterscape dam, a gate slidably connected to the interior of the waterscape dam through the driving device, a water spraying device arranged at the top end of the gate, protection devices rotationally connected to the two ends of the interior of the gate, and cleaning devices arranged in the protection devices, wherein the water spraying device comprises a nozzle and a water suction pipe opening, and the nozzle is installed at the top end of the gate through a bolt. The effects of preventing the nozzle from being damaged and blocked by impurities in water and improving the flexibility of the protection function are achieved, and the effects of maintaining the nozzle, preventing the nozzle from being blocked by the impurities, avoiding the situation that normal water cannot be sprayed out, and prolonging the service life of the nozzle are achieved.

The invention discloses an elevation adjustable type steel dam gate device in the technical field of steel dam gates. The elevation adjustable type steel dam gate device comprises a door board, a bottom turnover shaft, a wallboard and a control chamber, the control chamber is internally provided with a turnover drive component used for controlling the bottom turnover shaft to turn over, and the turnover drive component is provided with a turnover angle correcting component and a turnover locking-assisting component in a matched mode. The turnover angle of the door board can be corrected in time, and the turnover angle of the door board can also be firmly locked.

The invention provides a steel dam structure for water environment treatment. The steel dam structure comprises a steel dam main body, water injection solenoid valves and drainage solenoid valves. Water distribution bodies are uniformly and vertically welded to the back face of the steel dam main body in a spaced manner. According to the steel dam structure, the structures are matched with one another to achieve the steel dam structure for water environment treatment, wherein the steel dam structure can change the overflow amount and is stable and controllable. By means of water pumps and allthe solenoid valves, water storage and drainage are controlled, and an inner gate and an outer gate can be matched with each other in ascending and descending. In particular, when the water storage amount is large, a gate is closed in a manner that the inner gate and the outer gate are operated according to the level and the flow, and operation is safer to conduct. In addition, only electric components such as the water pumps and the solenoid valves are adopted; and compared with electric cylinders, the electric components are cheaper to maintain. In addition, existing steel dam structures aremostly arranged among mountains; a great amount of silt is contained in rivers, and river channels are prone to sedimentation; and by means of mud-water isolation bodies and power paddles, the silt is prevented from being piled up nearby a steel dam.

The invention discloses a self-spinning steel dam with a centre rotating shaft, and relates to the field of water conservancy and hydropower; the self-spinning steel dam comprises a dam foundation; side walls are poured on the two sides of the dam foundation; a plurality of supporting piers are poured on the top of the dam foundation; the tops of the supporting piers are fixedly connected with pre-embedded steel plates through anchor bolts; foot support shaft sleeves are fixedly connected to the plurality of pre-embedded steel plates; the same rotating main shaft penetrates through the plurality of foot support shaft sleeves; the upper side of the rotating main shaft is fixedly connected with an upper panel; and the lower side of the rotating main shaft is fixedly connected with a lower panel. According to the invention, panel stress is more scientific; a rotating fulcrum of the hydraulic self-rotating dam is located in the middle; mutual offset of upper water pressure and lower water pressure is fully utilized; opening and closing force is greatly reduced; when the hydraulic self-rotating dam is full of water, panel stress is self-balanced; meanwhile, a main shaft can penetrate through a side wall to be provided with a hydraulic pump room; a hydraulic control system and a vertical dam releasing mechanical locking structure are installed in the pump room; and the retaining dam is convenient to maintain, is attractive in appearance and stable in structural design.

The invention belongs to the technical field of water conservancy and hydropower construction, and particularly relates to a steel dam with a power generation function. The steel dam with the power generation function comprises a steel gate body, a turbine drive device and a flexible shaft drive device, wherein the turbine drive device is arranged on the drainage side of a gate top of the steel gate body; a shaft end of the turbine drive device is connected with the flexible shaft drive device through a shaft end of a power generator; and when water flows over the gate top of the steel gate body, the water flows into a turbine so as to drive the turbine drive device to rotate, and the power generator is driven through the flexible shaft drive device to generate power. According to the steel dam with the power generation function provided by the invention, after the turbine drive device is arranged on the gate top of the steel gate body, when the water flows over the gate top of the gate, the water flows into the turbine so as to drive the turbine drive device to rotate, and the power generator is driven through the flexible shaft device to generate power, so that the investment utilization ratio of the steel dam is improved, and the investment income is increased.

The embodiment of the invention discloses an integral horizontal rotary dam, and relates to the field of water conservancy projects. The integral horizontal rotary dam comprises a retaining dam body,at least two fixing piers and a dam body driving device, wherein the retaining dam body is arranged above a dam foundation and extends in the width direction of a river channel; the fixing piers are arranged on one side of the dam body at intervals along the width direction of the river channel and are connected with the dam foundation; and each fixing pier is hinged to one side of the dam body through a hinge device. According to the integral horizontal rotary dam, the defects that a rubber dam is easy to damage and age, the time for dam lifting and collapsing is long, the safety is low, thereliability is poor, the service life is short and the like can be overcome; furthermore, the problems that leakage occurs among side water-block rubber of a hydraulic dam, hydraulic cylinders and oilpipes are prone to failure in the river channel, the overhaul is difficult and the like can be solved; and meanwhile, the problems that a bottom shaft of a traditional steel dam gate is rough, not scientific in stress bearing, poor in sand punching effect and high in manufacturing cost and the like can be overcome.

The invention discloses a large watercourse dam bulkhead gate. The large watercourse dam bulkhead gate comprises earth banks already constructed on the two sides; working areas for constructing a maingate dam are arranged in the earth banks; detection gate piles are correspondingly arranged on the upstream and the downstream places of the two outer sides of the working areas; corresponding gate slots are formed in the two sides of the detection gate piles and the inner side walls of the earth banks 1 on the two sides; and closed type bulkhead gates are inserted into the corresponding gate slots from top to bottom. Watercourse overcurrent in non-working areas are utilized effectively, and the working areas can be protected effectively during heavy rain or floods; the difficulties of a steel dam / hydraulic dam in later curing and maintenance are overcome, the curing danger and cost under raw water are reduced, and multiple projects which can not be maintained originally are optimized tobe maintainable projects; and the bulkhead gates of the large watercourse dam bulkhead gate are simple in structure, light in weight and convenient to operate and the cost is saved.

The invention discloses a novel steel dam gate bottom shaft seepage-proofing and water-stopping device and a construction method. The novel steel dam gate bottom shaft seepage-proofing and water-stopping device comprises a rack, wherein a pressing mechanism and a high-strength steel bar are arranged on the rack, a water-stopping steel plate is arranged at the bottom of a gate, and water-stopping rubber abutting against a gate fixing rotating shaft for sealing is arranged on the water-stopping steel plate; the pressing mechanism drives the high-strength steel bar to move, the water-stopping rubber is on the moving track of the high-strength steel bar, and the high-strength steel bar pushes the water-stopping rubber to be extruded and sealed with the gate fixing rotating shaft. The construction method comprises the following steps of S1, assembling a front water-stopping plate; and S2, installing the water-stopping rubber. According to the novel steel dam gate bottom shaft seepage-proofing and water-stopping device, the investment cost is low, the water stopping effect is good, and P-shaped rubber plays a dual water stopping role; construction is convenient, and potential safety hazards are small; the structure is simple, water sealing is tight and reliable, aging resistance is achieved, and service life is long; a pressing device further ensures the water stopping performance of a bottom shaft, and is easy to operate and convenient to maintain.

The invention discloses a method for treating Feng river by using a hydraulic steel dam gate. By combining meteorological, hydrographic and geological conditions of Feng river basin, the invention introduces an application of the hydraulic steel dam gate in a Feng river watercourse comprehensive renovation project. Compared with a traditional regulating dam (barrage), the hydraulic steel dam gatehas the characteristics that the dam span is large, the flow capacity is high, no upstream sediment accumulation is generated, the dam rising and falling speed is high, the flow adjusting is convenient, watercourse floating object blockage is avoided and so on; and the advantage of the hydraulic steel dam gate in urban watercourse comprehensive treatment and construction is sufficiently shown.

The invention discloses a novel steel dam. The novel steel dam comprises a rotary shaft and a hydraulic column. One end of the rotary shaft is fixedly sleeved with a gate vane plate with the arc-shaped section, one side of the rotary shaft is fixedly sleeved with a starting arm, a first lug plate and a second lug plate are fixedly arranged on the two sides of the starting arm separately, a pistonrod lug ring is fixedly arranged at the end of a piston rod of the hydraulic column, a first hydraulic rod and a second hydraulic rod are fixedly arranged on the outer side wall of the second lug plate, a fixing hole is formed in the first lug plate, a third hydraulic rod is fixedly arranged on the side wall of the first lug plate, the end, close to the fixing hole, of the first lug plate is sleeved with a fixing frame, the end, away from the gate vane plate, of the rotary shaft is sleeved with a supporting seat, a base is fixedly hinged to the middle of the hydraulic column, and the other endof the gate vane plate is sleeved with a supporting shaft. Compared with the prior art, the novel steel dam has the beneficial effects that according to the novel steel dam, people can walk on the gate vane plate, a gate can rotate at a large angle, and closure can be stably locked.

The invention discloses a novel hydraulic locking device for a steel dam. The novel hydraulic locking device comprises a steel dam gate, wherein two sides of the steel dam gate are both provided witharc-shaped grooves; a wedge-shaped slotted hole is formed in a lateral part of the steel dam gate and located below the arc-shaped grooves; the lateral part of the steel dam gate is provided with a locking device fixed to a dam body; the locking device comprises a hydraulic rod I, a hydraulic rod II, a supporting arm, locking pillar rods and a wedge-shaped block; a rod end of the hydraulic rod I is fixedly connected with the supporting arm; the side, which approaches the steel dam gate, of the supporting arm is fixedly connected with the locking pillar rods; and a rod end of the hydraulic rodII is fixedly connected with the wedge-shaped block. Compared with the prior art, the novel hydraulic locking device has the advantages that the novel hydraulic locking device for the steel dam is good in locking effect and can be used for realizing multiple locking.

The invention discloses a guide device for steel dam gate hoisting. The guide device comprises guide plates, an adjusting structure, a splitting structure and a cleaning structure, wherein the two guide plates are symmetrically arranged, fixing plates are fixed to the bottom ends of the two guide plates, the adjusting structure comprises a second adjusting plate, and first adjusting plates are fixed to the front side and the rear side of the guide plate on one side. According to the guide device, through cooperation of the first adjusting plate and the second adjusting plate, the two guide plates can be placed in an aligned mode, under cooperation of a T-shaped sliding rod and a sliding groove, the distance between the two guide plates can be adjusted conveniently, the guide plates can adapt to steel dam gates of different lengths conveniently, and the application range of the guide device is widened; and after guide work is completed, the two guide plates are taken away from the two sides of a steel dam gate after being separated, the guide plates are prevented from influencing normal installation of the steel dam gate, the practicability of the guide device is improved, soil on fixing rods is prevented from entering fixing holes in the fixing plates, and the guide plates can be conveniently fixed to the ground again through the fixing rods.

The invention discloses the field of steel dams, and particularly relates to a plug-in locking mechanism for locking a cross beam of a steel dam. The plug-in locking mechanism comprises an plug-in structure and a fixing structure, the plug-in structure with a fixing function is inserted into the fixing structure with a sealing function, the plug-in structure comprises a rear seat shaft, an plug-in shaft is mounted in the center of the front end face of the rear seat shaft, a sealing groove is formed in the outer side of the front end face of the rear seat shaft, telescopic grooves are formed in the circumferential array of the side face of the plug-in shaft, telescopic structures are installed in the telescopic grooves, the rear seat shaft is of a cylinder structure, the plug-in shaft is of a hollow cylinder structure, the diameter of the plug-in shaft is smaller than that of the rear seat shaft, the first sealing groove is of a circular ring structure, and the telescopic grooves are of a cuboid structure and penetrate through the plug-in shaft. The plug-in locking mechanism for the locking cross beam of the steel dam has the beneficial effects that the structure of a traditional steel dam locking cross beam is optimized, and installation of the steel dam locking cross beam is more convenient.

The invention discloses a steel dam gate device with an anti-slipping-down function in the technical field of steel dam gates. The steel dam gate device comprises a center rotating shaft, a gate plateand a pair of control rooms and further comprises a PLC and a hydraulic system controlled by the PLC. The control rooms are internally provided with indoor foundations. Each control room is internally provided with a swinging oil cylinder, a main hinge seat, a rocker arm, a locking cylinder and a lock pin. The rocker arms are fixed to the peripheral surface of the center rotating shaft. The tailend of a piston rod of each swinging oil cylinder is hinged to the corresponding rocker arm. A double-lug locking seat is mounted on each indoor foundation. Each double-lug locking seat is provided with a free gap capable of allowing a swinging plate to be inserted in. A main locking hole is formed in each swinging plate. A locking seat hole is formed in each double-lug locking seat. When the gateplate is located at an erecting and water blocking state, the main locking holes in the swinging plates exactly correspond to the locking seat holes of the double-lug locking seats and the main locking holes and the locking seat holes are coaxial, the swinging plates are exactly located in the free gaps, the lock pins directly face the main locking holes and the locking seat holes and are inserted in the main locking holes and the locking seat holes, and the rocker arms can be located at the accurate locking positions accordingly, so that the oil cylinders are locked to lock the rocker arms.

The invention relates to the technical field of water projects, in particular to a steel dam gate having pedestrian passageways which can be used for water projects where buildings cannot be constructed above water due to landscape open water. A main body of the steel dam gate can be set according to a structural demand. The steel dam gate includes two empty box sections, two opening-closing machine room sections, and one gate room section; the opening-closing machine room sections are arranged on two wings of the gate room section; the empty box sections are arranged outside the opening-closing machine room sections; the pedestrian passageways are arranged in the opening-closing machine room sections and the gate room section; and stairs are arranged between the pedestrian passageways andthe opening-closing machine room sections. The invention can solve the technical problem that traffic cannot be performed between the opening-closing machine room sections at two sides of a river channel, and overhaul is difficult to perform.