13 results about "Hydraulic action" patented technology

This utility model provides a water circuit three-way switching valve, including: an electric valve and an internal flow guiding and limiting component. The lower end of the electric valve is provided with a valve body for controlling the switching of the water circuit three-way. The right side of the electric valve is provided with an internal flow guiding and limiting component for fastening and limiting the flow space inside the second flow guide pipe. Compared with the prior art, this utility model has the following beneficial effects: When switched to the lateral flow guiding state, the water flows into the valve body through the lateral flow guide port. The upper support rod compresses the spring under hydraulic action, so that the limiting support block and the top shell are axially fixed. When the electric valve stops working, the spring resets and pushes the limiting piston to close the lower flow guide port. The spherical cooperation between the upper support seat and the lower support ball seat eliminates lateral movement. At this time, the internal flow guiding and limiting component is in a self-locking state, thereby blocking the water inside the second flow guide pipe through the limiting piston and fastening and limiting it.

This application relates to a hydraulically controlled water supply on / off device and its control method. The device includes a pressure reducing valve, a pilot valve, and a solenoid valve. The solenoid valve is disposed on the connecting pipeline between the outlet side of the pilot valve and the outlet side of the pressure reducing valve. When the solenoid valve is open, the valve plate of the pressure reducing valve separates from the valve body under the pressure of the water at the inlet side of the pressure reducing valve, and the pressure reducing valve opens. When the solenoid valve is closed, the pilot valve controls the valve plate of the pressure reducing valve to move downward, and the pressure reducing valve closes. This device controls the opening and closing of the solenoid valve by receiving the unit's operating status signal to isolate or open the pilot valve channel, thereby automatically controlling the opening and closing of the pressure reducing valve using hydraulic action. This achieves reliable on / off control of the technical water supply system, effectively avoiding the opening and closing failures caused by pressure buildup in traditional electric isolation valves. Furthermore, by replacing the high-energy-consuming electric valve with a low-power solenoid valve, the system's energy consumption is significantly reduced.

The invention discloses a hydraulic segmented grooving device for a dam diaphragm wall, which relates to the technical field of diaphragm wall forming and comprises a driving machine for providing a power source and driving a movable grab bucket to execute opening and closing operation; the movable grab bucket is driven by a driving machine and used for grabbing and lifting a soil body, and a thickness detection change mechanism is integrated at the grab tip part of the movable grab bucket so as to adapt to complex stratum conditions; the hydraulic driving part is connected to the hinged part of the movable grab bucket and used for controlling the opening and closing actions of the grab bucket through the hydraulic action and adjusting the digging force; the thickness detection change mechanism is used for sensing the resistance difference of soil layers on the two sides in real time and outputting a feedback signal according to soft and hard soil distribution to assist attitude adjustment; and the posture correction mechanism is used for adjusting hydraulic flow balance and automatically adjusting the inclination state of the grab bucket when the resistance of the soil layers on the two sides is not uniform, and the grooving perpendicularity is maintained.

The utility model discloses an isolating bush for magnetic force pump, including sleeve and the flange disc of sleeve one end, the sleeve is inside and outside double -layer structure, and the inside and outside layer of sleeve has the clearance and forms the flow passage between, and the flow passage is provided with the flow guide member for guiding the flow in, the flange disc is equipped with the annular cavity that communicates with the flow passage, the periphery of annular cavity is linked with the movable cavity, the utility model discloses utilize the dynamic monitoring mechanism of leakproof float, through the spiral septum in flow passage guide leakage medium to enter annular cavity, push leakproof float and float under the hydraulic action radially, and the guide rod is stretched out from the flange disc through -hole, and the warning mark (such as color mark or magnetic trigger device) is combined to realize visual real -time early warning, need not external monitoring equipment, and the axial displacement of guide rod can be directly exposed to the external environment, and the operator can judge the isolating bush breakage position and take the measures quickly, and relative to prior art can realize the monitoring of the inner layer breakage of isolating bush in the closed environment.

The utility model relates to the technical field of hydraulic control, in particular to a palm vehicle hydraulic control system. The system comprises a main control system and a pilot control system, the main control system comprises a main control valve, a first gear pump and a second gear pump, the first gear pump and the second gear pump are connected to an oil tank, a left loop and a right loop are arranged in the main control valve, and the first gear pump and the second gear pump are connected to the two loops respectively for oil supply; each control link is connected to the working cavity of the corresponding execution element; a double-pump hydraulic system is adopted, seven hydraulic actions of the palm vehicle are uniformly distributed on two hydraulic pumps, the load fatigue of a single-pump system is reduced, the service life of the pumps is prolonged, the faults of the hydraulic pumps are reduced, and the fault-free service time of a user is greatly prolonged; hydraulic actions controlled by the first gear pump and the second gear pump can act simultaneously to complete composite motion, and the defects that a single-pump hydraulic system cannot complete hydraulic composite motion and the working efficiency is reduced are overcome.

The utility model relates to the field of highway engineering, and discloses a highway subgrade anti-landslide device, which comprises a water collecting tank and a drainage tank which are respectively arranged at the top and the bottom of a slope, the water guiding grooves are obliquely laid on the slope surface of the side slope and used for communicating the water collecting grooves with the drainage grooves, the supporting frames are fixedly installed between every two adjacent water guiding grooves in the horizontal direction, water guiding openings are formed in the side walls, close to the supporting frames, of the water guiding grooves, and the supporting frames are used for guiding water on the slope surface into the water guiding openings. The water collecting tank can effectively collect surface runoff in the rainfall period, the supporting frame can guide rainwater on the surface of the side slope into the water guiding groove, the rainwater collected by the water collecting tank and the supporting frame is jointly discharged into the drainage groove through the water guiding groove, and therefore the situation that the runoff directly washes the slope surface is avoided, and the problems of soil softening and roadbed instability caused by the hydraulic action are solved.

The invention relates to the technical field of casing windowing sidetrack drilling, and provides a double-layer casing hydraulic extrusion windowing tool and windowing method.The double-layer casing hydraulic extrusion windowing tool comprises an abrasive perforator which is installed on the surface of one side of a windowing device and used for emitting high-pressure water flow towards an oil-string casing at a set angle and forming multiple sets of perforation holes, and the area between every two adjacent sets of perforation holes is a groove area; and the extrusion collapse column is used for extruding the groove area at a set angle until the extrusion collapse column enters a stratum on the outer side of the oil-string casing. According to the device, abrasive perforators are installed on a window opener, extrusion columns are installed between the abrasive perforators, multiple rows of perforation holes are formed in the abrasive perforators during window opening, and a groove area is formed after transverse rows of perforation holes are formed in an oil-string casing, a cement sheath, an intermediate casing and a stratum. Materials of an oil-string casing, a cement sheath, an intermediate casing and a stratum are extruded towards the grooves in the two sides through the hydraulic effect, the oil-string casing, the cement sheath, the intermediate casing and the stratum are rapidly fester and fall off, and a needed sidetrack drilling window can be easily formed in the follow-up work.

The utility model discloses a water conservancy slope protection structure, which relates to the technical field of water conservancy slope protection appliances and comprises a dam, a drainage channel is arranged in the dam, a filter plate is mounted at the top end of the drainage channel, a reinforcement cage is mounted on the top surface of the lower end of the dam, and an ecological layer is arranged on the upper portion of the dam. The gravel blocks are placed in the reinforcement cage, so that impact abrasion of water flow to the bottom end of a dam is relieved conveniently, the protection effect of the slope protection structure is guaranteed, and the service life of the device is prolonged; through cooperation of an inclined buffer plate and a spring, the inclination angle of the buffer plate is increased conveniently when the dam is impacted by water pressure, then the impact of water flow on the dam is absorbed, the impact can be relieved through springback of the spring, and through reinforcement of cement cotton, the situation that stones on the surface of the slope are loosened and concrete is peeled off can be effectively avoided; finally, the problem that the protection effect of the slope protection structure is reduced due to the fact that stone loosening, concrete peeling and the like easily occur on the slope protection surface under the long-term hydraulic action of high-speed water flow, strong waves and the like is solved.

This utility model discloses a modular block for river ecological slope protection, including a block body and pins. The block body includes a central ring, with a connecting block fixedly connected to the right side and front of the central ring, a connecting groove fixedly connected to the left and rear of the central ring, first interlocking teeth fixedly connected to the left and right sides of the bottom of the central ring, second interlocking teeth fixedly connected to the front and rear sides of the bottom of the central ring, an anti-slip block fixedly connected to the rear of the top of the central ring, and a reinforcing ring fixedly connected inside the central ring. The connecting block on the right side corresponds to the connecting groove on the left side. This structure enhances the interlocking force between the block and the contact surface, preventing the block from being easily washed away under severe hydraulic forces. Dedicated leverage points reduce the risk of people slipping and falling into the water at the slope protection location.

The utility model belongs to mineral processing technical field especially is involved a kind of drum type ore washing device, including the drum of overall inclination setting, drum inside is divided into feeding section, fine washing section, dehydration section three operation zones along the axial direction, the inner wall of feeding section is equipped with rubber lining and longitudinal guide trench, the inner wall of fine washing section is equipped with wave type lining, the inner wall of drum is equipped with helical plate of pitch decrement, fine washing section corresponding wave trough position and the inner wall of dehydration section are provided with filter hole, the axial both ends of drum are equipped with the rotary connection structure of rotary ring and support ring, the centre of drum is equipped with segmented water supply device, including low-pressure main pipe and high-pressure main pipe, respectively configure sector-shaped spray head to realize differentiating water supply. Gradient washing is realized by segmented differentiating design, pitch decrement controls material residence time, and double-pipe segmented water supply system provides accurate hydraulic action, to improve ore washing efficiency and washing purity.

The invention discloses a jet flow auxiliary system for underwater screw anchor installation, relates to the technical field of ocean engineering foundation installation, and solves the technical problems that traditional screw anchor installation depends on large equipment, installation is difficult due to super-large torque, and popularization of the traditional screw anchor in ocean engineering is restricted. The system comprises a fluid pump, a high-pressure fluid rotating structure and a hollow spiral anchor rod. A fluid inlet of the fluid pump is connected with the fluid storage container, a fluid outlet of the fluid pump is connected with a fluid inlet of the high-pressure fluid rotating structure, the top of the high-pressure fluid rotating structure is connected with the spiral anchor driving device, and a sealing output connector is installed at the bottom of the high-pressure fluid rotating structure. The hollow spiral anchor rod is inserted into the sealed output connector, and a plurality of jet flow spraying holes are formed in the bottom of the hollow spiral anchor rod. The end penetration resistance and the side wall friction resistance of the spiral anchor are reduced through the hydraulic action, and therefore the torque needed in the installation process of the spiral anchor is adaptively reduced.

The invention relates to the field of bending resistance testing of steel pipe joints, and discloses a testing device for bending resistance testing of a full-self-anchoring steel pipe joint, and the testing device comprises a transparent water tank, a slidable loading clamp, a stirring assembly, a detection mechanism, a circulation mechanism and a fixed seat, the input end of the circulation mechanism is connected to the rear end face of the transparent water tank, and the input end of the circulation mechanism is connected to the rear end face of the transparent water tank; the output end of the circulating mechanism is arranged above the stirring assembly, controllable bending load can be applied to test the mechanical property of the joint, the dynamic hydraulic action in a real marine environment can be synchronously simulated, and state in-situ monitoring of key parts of the joint is realized through a built-in rotation detection mechanism; the authenticity of the test result and the engineering guidance value are improved, the loading clamp achieves controllable displacement in the direction perpendicular to the axis of the connector through the sliding assembly, the bending moment load can be accurately applied, and the structural strength and deformation characteristics of the full-self-anchoring steel pipe connector under transverse deformation are effectively evaluated.

The invention discloses a hydraulic triggering type telescopic anchoring anchor rod and a geotechnical engineering supporting method, and belongs to the technical field of geotechnical engineering supporting. The anchor rod mainly comprises a blocking piece, a multi-stage rod body, an anchor head and a sliding block. The core is that the multiple stages of rod bodies are mutually overlapped and sleeved through the grooves and the bosses, so that great contraction can be realized; a sliding block mechanism is arranged in the rod body, a sliding block can move from an initial locking position to a final locking position under the hydraulic effect generated by grouting, in the process, the inner-layer rod body is pushed to extend inside and outside, telescopic inserting rods on the two sides of the inner-layer rod body are driven to pop out and be clamped in anchoring holes of the rod body, and an irreversible rigid mechanical anchoring point is formed. Grouting pressure is ingeniously used as trigger power, active stretching and final rigid locking of the anchor rod are achieved, the anchor rod has the comprehensive advantages of being convenient and fast to transport, efficient in installation, high in anchoring force and good in large-deformation adaptability, and the anchor rod is particularly suitable for supporting soft broken rock masses.