13results about How to "Improve passing efficiency" patented technology

The application discloses a reconstruction method of a vertical slot fishway into a movable baffle fishway, which comprises the following steps: a) extending the fish inlet downstream; b) reconstructing the fish outlet into a transversely opening gate; and c) adding an automatically controlled energy dissipation baffle between pool rooms; when the defects of the original fishway are caused by the change of the upstream and downstream water levels, the steps of a) and b) need to be performed; when the defects of the original fishway are caused by the emergence of new low-swimming-speed fish species, the step of c) is performed; and when the original fishway has both of the above problems, the steps of a), b) and c) are simultaneously performed. The application has the advantages that the reconstruction method of the vertical slot fishway is provided; the reconstruction design method and the new body type of the fishway outlet; the reconstruction method of the fishway inlet; and the above method and body type have important effects on the improvement of the fish passing efficiency.

The utility model discloses industrial wastewater filtering equipment and belongs to the field of filtering equipment. The device comprises a filter tank, a grating mechanism, a waste box, a longitudinal compression mechanism and a transverse compression mechanism. The grating mechanism is arranged in the filter tank and is used for conveying waste materials in the wastewater. The waste box is fixedly arranged at the upper end of the filter tank and below a discharge hole of the grating mechanism and is used for collecting waste. The longitudinal compression mechanism is arranged in the filter tank and is used for extruding the waste materials from the upper side and the lower side; the longitudinal compression mechanism comprises a driving part; an upper pressing plate is arranged on the driving piece; the upper pressing plate is driven by a driving part to move up and down; and a lower pressing plate fixedly connected to the bottom of the filter tank is arranged under the upper pressing plate. Through mutual cooperation of the vertical compression mechanism and the transverse compression mechanism, waste materials can be extruded in the transverse direction and the longitudinal direction respectively, the waste materials are made to be in a compact long strip shape, accumulation and winding of the loose waste materials on a chain belt are reduced, and the risk that the chain belt is blocked is reduced.

The utility model discloses a kind of outer convex wall low wind resistance flexible air pipe, comprising: pipe outer layer, pipe inner layer and elastic spiral silk;Pipe outer layer is pressure combined with pipe inner layer, and elastic spiral silk is wound and is held in pipe inner layer outside, the inside wall of pipe inner layer is smooth surface;Pipe outer layer is protruded in the direction of outside wall on the part of being wrapped in elastic spiral silk, and the wall thickness portion of its bending section is bent and protruded in pipe outside direction when pipe is bent.The inside wall of the utility model is smooth surface from beginning to end, without concave portion, and the size of its inner tube diameter is always unchanged when bending, so wind resistance in pipe does not increase;Compared with the problem that the pipe diameter of previous conventional hose is reduced when bending, thereby leading to wind resistance increase and fluid passing efficiency reduction, the wind resistance of the utility model is lower, beneficial to improve the flow rate of fluid, and the efficiency of fluid passing is significantly improved, and the pipe also has the characteristics of clean and dust-free, which brings good improvement to the exhaust effect of equipment.

This utility model relates to the field of putty powder sampling and testing technology, and discloses a putty powder sampling and testing device, including a testing tank, which is fixedly installed on the top of a support. A sieve plate is fixedly installed on the inner wall of the testing tank, and a fixing plate is fixedly installed on the inner wall of the testing tank. The testing tank is fixedly connected to one end of a conveying pipe. This putty powder sampling and testing device is equipped with a control component. When the output shaft of the motor drives the round rod and the plate to rotate, the sliding rod in the plate surface can move downward within the plate when it abuts the surface of the protrusion. When the sliding rod moves, the tapping plate fixed at the bottom of the sliding rod can tap the surface of the sieve plate. The movable rod hinged to the surface of the sliding rod can be folded to push the vertical rod and the support rod to slide on the surface of the sieve plate, thereby accelerating the passage efficiency of dry putty powder on the surface of the sieve plate and avoiding the situation where dry powder cannot be separated and tested due to accumulation.

This utility model relates to a stress test board assembly and a testing machine. The stress test board assembly includes: a board body; a heating element disposed on the board body; a heat sink disposed on one side of the board body; and a windproof structure including a first windproof plate and a second windproof plate connected to each other. The first windproof plate is disposed on the side of the heat sink away from the board body, and the second windproof plate extends obliquely from one end of the first windproof plate toward the side away from the board body. The end of the second windproof plate away from the first windproof plate forms an air inlet for the fan with the board body. The second windproof plate can guide as much air blown by the fan as possible through the air inlet into the air duct formed by the windproof structure and the board body, increasing the air volume passing through the heat sink. The first windproof plate can reduce the air volume leakage, thereby improving the heat dissipation effect and efficiency of the heat sink on the heating element and the board body. The windproof structure can also prevent dust contamination of the heat sink, heating element, and board body, extending the service life of the stress test board assembly.

The utility model provides a numerical control grinding machine cooling water scrap iron filtering device, which relates to the technical field of numerical control grinding machine cooling water recycling, and comprises a water inlet cavity, a filtering cavity, a water inlet port, a water outlet port, a partition plate, a flow guide plate, a rotating shaft, an adsorption roller, a through groove and a material guide plate which are communicated with one another, the upper end of the material guiding plate abuts against the outer surface of the adsorption roller, a mounting frame is arranged on the outer surface of the filtering cavity, a motor is arranged on the mounting frame, chain wheels are arranged at the output end of the motor and one end of the rotating shaft correspondingly, and the two chain wheels are in transmission through a chain. Impurities such as iron chips capable of being magnetically attracted in cooling water can be continuously and magnetically attracted out, meanwhile, the magnetically attracted impurities are continuously cleaned out through a material guide plate, it is avoided that a large number of impurities are adsorbed to the surface of the adsorption roller, the adsorption roller has the good adsorption capacity and adsorption effect, and the service life of the adsorption roller is prolonged. The cooling water is ensured to have good passing efficiency, and the use effect is good.

The utility model discloses a titanium-aluminum alloy light-weight turbine blade of an aero-engine, and relates to the technical field of aero-engines. The titanium-aluminum alloy light-weight aero-engine turbine blade comprises a margin plate, and an air guide mechanism and an installation tenon mechanism are arranged on the outer wall of the margin plate. The air guide mechanism has the technical effects that the air guide plates and the air guide blades arranged on the outer walls of the air guide plates are matched with the air guide grooves and the air guide slopes of the air guide grooves, so that high-speed airflow entering the aero-engine can be guided and shunted, the airflow flowing path is optimized, airflow resistance and turbulent flow are reduced, and the airflow passing efficiency is improved; and meanwhile, the reinforcing frame is located in the inner cavity of the air guide plate, makes contact with the inner wall of the cavity and is fixedly connected with the inner side face of the mounting cover, and the dead weight of the air guide plate can be effectively reduced.

The utility model relates to access control electronic equipment technical field discloses an access control identification device with disinfection function, including bottom platform, the bottom platform top fixedly connected with door body, the door body inboard front left and right sides are equipped with the recess and fixedly connected with the connecting ball, the connecting ball outer circle one side fixedly connected with spring, spring one end fixedly connected with the brake roll, the door body inboard front left and right sides fixedly connected with the limit board, bottom platform one side is provided with the machine case, the machine case top middle position fixedly connected with the support rod, the machine case top fixedly connected with the cover. In the utility model, the hole is set up and the connecting ball is installed in the door body front two sides, the spring is connected on the connecting ball surface, the brake roll is connected on the spring one end, and the limit board is fixed on the connecting ball side and the door body, and a cover is fixedly installed on the machine case top, the identification machine is covered, and the human flow passing efficiency is effectively improved.

The utility model relates to a kind of bean dregs filter-out technical field, disclose a kind of stirring device convenient for filtering out bean dregs, including support structure, stirring structure, filter structure and collection barrel, stirring structure and filter structure are respectively installed on support structure, stirring structure includes fixed bracket, electric push rod and motor, the inner side of fixed bracket is provided with guide rail, the telescopic end of electric push rod is fixedly installed mounting plate, mounting plate one end and guide rail slidingly connect, mounting plate is installed pivot by motor, the bottom end of pivot is fixedly installed first connecting rod and second scraper respectively, first connecting rod is fixedly installed first scraper on the side away from pivot.The utility model is driven first scraper, second scraper and filter pot cooperation extrusion soybean by motor by the stirring structure being set, can efficiently promote slurry to flow out and filter by filter hole, and when soybean particle becomes small, electric push rod can drive scraper to move down and reduce gap, further grind out slurry.

The invention discloses a sheathing canal and a guiding sheath, and relates to the technical field of medical instruments. The sheath tube can be used for guiding a sheath. The sheath tube comprises a first tube section and a second tube section connected with the far end of the first tube section. The first pipe section is provided with a first pipe cavity and a second pipe cavity, the second pipe section is provided with a third pipe cavity, and the first pipe cavity and the second pipe cavity are both communicated with the third pipe cavity. The scheme is beneficial for improving the calculus discharge efficiency.

This utility model relates to the field of particle shaping technology and discloses a brown fused alumina airflow shaping machine for dust collection. It includes two support legs, with a tank body fixedly connected to the top of the second support leg. An air supply pipe is fixedly connected to the outer wall of the tank body, and an air inlet pipe is fixedly connected to the outer wall of the air supply pipe. A quick-release assembly is provided on the outer wall of the tank body, including a fixing block. One side of the fixing block is fixedly connected to the outer wall of the tank body, and a threaded rod is rotatably connected inside the fixing block. A gasket is fitted on the outer wall of the threaded rod, and a rotary lock is threadedly connected to the outer wall of the threaded rod. In this utility model, rotating the rotary lock until the connecting plate and the fixing block fix the nozzle, achieving the function of quickly replacing the nozzle through the threaded rod and rotary lock. This solves the problem of difficulty in replacing the nozzle used to spray high-pressure gas in traditional brown fused alumina airflow shaping machines for dust collection when damaged, improving the maintainability of the machine.

The application discloses a feeding device with a material crushing function, and relates to the technical field of hardening powder scattering and crushing equipment. The feeding device comprises a hopper and a screw conveying mechanism arranged on a rack, and two parallel crushing rollers rotatably arranged in the hopper. Each crushing roller comprises a roller shaft and a plurality of arrayed roller teeth rotatably connected to the circumferential surface of the roller shaft. The roller teeth of the crushing roller are arranged into a plurality of roller tooth groups in an array along the circumferential direction of the roller shaft. The roller teeth of each roller tooth group are arranged in an array along the axial direction of the roller shaft. The roller teeth comprise at least two pairs of blade portions. Each pair of blade portions comprises two oppositely arranged blade edges. The spacing between the two blade edges of each pair of blade portions is different. The roller teeth between the two crushing rollers are arranged in a staggered manner. The adjacent blade edges of two adjacent roller teeth form a shearing crushing pair at the occlusal position. The orientation of the roller teeth is rotated to switch the blade edges of the shearing crushing pair, change the shearing gap of the shearing crushing pair, and maximize the material passing efficiency under the premise of meeting the particle size.

The application relates to the technical field of water turbines, and discloses a water turbine runner blade and a water turbine, which comprise an assembling mechanism and an assembling plate, the assembling plate is arranged at the upper and lower ends of the assembling mechanism, the outer portion of the assembling plate is provided with a main shaft, the assembling mechanism comprises a hollow column, sliding plates are slidably connected to the upper and lower ends of the hollow column, the outer portion of each sliding plate is provided with a top plate, the top plates are connected with the assembling plate, elastic plates are arranged between the two groups of top plates, an air pump is arranged in the inner cavity of the hollow column, and the air inlet end of the air pump is in communication with the hollow column. The water turbine runner blade and the water turbine optimize the water flow state in the volute inner cavity, reduce energy loss caused by water flow disorder, further improve the overall operation stability and the anti-abrasion effect of the water turbine, adapt to the operation environment with high sand content in the Tuoshigang River basin, reduce part abrasion damage, reduce the maintenance frequency and cost, and guarantee long-term safe and stable operation of the unit.