5 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 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.

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.