46 results about "Reciprocating flow" patented technology

The invention discloses a non-contact mechanical sealing device for a rolling bearing, and relates to the technical field of non-contact sealing, the non-contact mechanical sealing device comprises a sealing end shell, a mounting flange, a connecting end shell and a rotating shaft, the sealing end shell is internally provided with a sealing mechanism for realizing sealing of a connecting structure of the sealing end shell and the rotating shaft; a lubricating mechanism for promoting liquid in the sealing end shell to flow back and forth is arranged on the side face of the sealing mechanism. An outer liquid sealing mechanism used for supplementing lubricating oil in the sealing end shell in real time is installed on the front side of the sealing end shell, and a liquid conveying port is formed in the outer surface of the outer liquid sealing mechanism. The sealing mechanism comprises an inner sealing ring, an annular sealing structure is additionally arranged at the joint of the side face of the sealing end shell and the rotating shaft through the side sealing ring groove and the side wedge ring, a multi-stage sealing defense line is formed by the annular sealing structure and a main sealing interface, and the overall sealing reliability between the inner wall of the sealing end shell and the rotating shaft in the axial direction and the radial direction is further improved.

The present application relates to sewage treatment technical field, in order to solve the internal physical separation of sewage treatment equipment in the prior art, the volume of each process section is fixed, the sewage treatment capacity of equipment is fixed, each process section volume cannot be adjusted with the change of external factors, thereby the sewage treatment capacity of equipment is inconvenient to adjust;An integrated domestic sewage treatment system is provided, including horizontal tank body, the front end of the inside of tank body is provided with at least a group of first aeration device, the rear end of the inside of tank body is provided with at least a group of membrane module and second aeration device;And the front end and the rear end in the inside of tank body are formed by the first aeration device, membrane module and second aeration device in tank body to form pressure difference, so that the sewage in tank body reciprocating flows from rear end to front end;It can realize the flow of sewage between different fuzzy process sections, complete biochemical reaction process, reduce equipment cost, energy consumption and failure rate, and improve the effect of standard discharge rate.

This invention relates to the field of cold stamping die technology and discloses a design template for a cold stamping die sleeve, including a base, a pad fixedly installed inside the base, a die sleeve fixedly installed inside the pad, a die sleeve fixedly installed inside the die sleeve, and a cooling water inlet connector, a cooling water outlet connector, and a lubricant connector fixedly installed outside the base. The die sleeve has an interface docking mechanism, an automatic lubrication mechanism, and an assembly mechanism. The automatic lubrication mechanism includes a driven column. This invention effectively reduces stamping friction between dies through precise injection of lubricating oil. Simultaneously, the reciprocating flow of oil between the die sleeve and the inner core provides hydraulic-assisted damping, effectively absorbing the impact vibration generated during stamping, thereby extending the service life of the die and improving the processing quality of the stamped parts.

The utility model discloses a plain river network reciprocating flow choking and guiding device, which relates to the field of river channel guiding facilities and comprises a plurality of guiding plates arranged on two sides of a river channel bank, the appearance of each guiding plate is in a Tesla valve shape, and all the guiding plates are arranged on the river channel bank in the same direction; the fixed seats are arranged in one-to-one correspondence with the guide plates, and the fixed seats are arranged on the bank of the river channel; one end of the fixing frame is rotationally arranged on the fixing seat, and the other end of the fixing frame is connected with the flow guide plate; according to the device, a simple flow blocking-guiding structure is constructed in a plain river network area by utilizing a Tesla valve principle, so that the flow direction of a river channel water body can be controlled under a certain hydrological condition, accurate prevention and control of a protection area can be realized, and the flow blocking-guiding structure has the characteristics of simplicity in design and construction, low economic cost, good prevention and control effect and the like.

The application discloses a method and device for controlling liquid reciprocating flow based on magnetic force and application. The method provided by the application utilizes the interfacial capillary force generated by the hydrophilic magnet on the gas / liquid / solid three-phase interface formed before the liquid is separated to realize the flow control of the liquid. The method has the advantages of: 1) non-contact flow control, which can avoid the pollution caused by contact control (such as mechanical probe control); 2) the liquid is moved smoothly and quickly, no bubbles and new gas-liquid interfaces are generated, the severe friction and vibration on the gas-liquid interface are avoided, and the aerosol generation probability is reduced; 3) compared with the existing magnetic control mode for moving or disturbing the liquid by pushing force, the aerosol pollution risk is greatly reduced. In addition, the beneficial effects of only 1-2 minutes for one round of antigen-antibody combination and 5-15 minutes for one detection are realized, and the detection speed is much higher than that of the traditional immunodetection method based on a reaction cup or a microhole plate.

The utility model discloses a kind of adjustable connected body oil cylinder, specifically related to mechanical technical field, the utility model includes two identical oil cylinder and adjusting seat group, oil cylinder includes cylinder body, piston rod, piston and end piece, one end of cylinder body is closed end, and is connected with pull ring one, the other end of cylinder body is the open end with communicating inner chamber, and open end is connected with the end piece for slidingly connecting piston rod, piston is fixedly connected in the inner end of piston rod, and piston is slidingly connected in cylinder inner chamber, the outer end of piston rod is connected with pull ring two, the side portion of end piece is provided with pipe joint one, pipe joint one is communicated with adjusting seat group by hose, the hydraulic oil in two oil cylinders is filled between respective piston and end piece respectively, and is circulated by adjusting seat group. It can be realized in stretching process to extrude transmission to hydraulic oil, realize stretch adjustable, relative to the original compression adjustable type oil cylinder structure, more suitable for the use of stair machine, mountain climber and other exercise equipment.

The utility model provides an automatic dispersion machine suitable for water-based gloss oil production, which comprises a base, side plates, a rotating shaft, a fixing frame, a dispersion tank, a motor, a material guide pipe and a scattering mechanism, the side plates are fixed on the upper side surface of the base, and the rotating shaft is rotatably arranged between the side plates; a fixing frame is fixed in the middle of the rotating shaft, a dispersing tank is fixed in the middle of the fixing frame, and a material guide pipe is fixed at one end of the dispersing tank; the motor is fixed to the side face of one side plate, and the output end of the motor is fixed to the rotating shaft. The scattering mechanism is fixed to the fixing frame, and the output end of the scattering mechanism is rotationally arranged in the dispersing tank. According to the device, mixed liquid of a water-based gloss oil raw material and a dispersing agent can flow in a reciprocating mode, the water-based gloss oil raw material and the dispersing agent are fully fused, in addition, the flowing liquid can be beaten through the scattering mechanism, and the fusion efficiency of the water-based gloss oil raw material and the dispersing agent is further improved.

The invention belongs to the technical field of vehicle accessories, and relates to a shock absorber which comprises a bottom valve assembly, a working cylinder assembly and an external nitrogen storage bottle, a damping cavity for oil liquid to flow back and forth is formed in the bottom valve assembly, the external nitrogen storage bottle comprises an outer bottle body and an inner bottle body which are arranged at an interval, the inner bottle body is provided with a floating piston in a sliding mode, and the floating piston is arranged in the working cylinder assembly. The floating piston divides a cavity of the inner bottle body into a gas cylinder oil cavity and a gas cavity, an oil overflow cavity is formed between the outer bottle body and the inner bottle body, the gas cylinder oil cavity is communicated with the oil overflow cavity through an oil overflow hole, the oil overflow cavity is communicated with the working cylinder assembly through a backflow channel, and the oil overflow hole is formed in the top of the gas cylinder oil cavity. According to the shock absorber provided by the invention, the technical problem of oil series flow of an existing nitrogen shock absorber can be solved.

The invention relates to a self-adaptive adjusting air cooler and an adjusting method thereof. The self-adaptive adjusting air cooler comprises a cooling cylinder, an expanding cylinder for a medium to flow in, a collecting cylinder for a medium to flow out, moving pipes which are movably arranged in the cooling cylinder in parallel, flow blocking mechanisms which are arranged on the moving pipes in parallel, and a moving mechanism which is arranged on the cooling cylinder, wherein the moving pipe is respectively communicated with the expanding cylinder and the collecting cylinder; the moving mechanism drives the moving pipes to move, and the distance between the moving pipes is adjusted. Gas flows into the cooling cylinder and is temporarily stored in the flow blocking mechanism, and the gas flows along the moving pipe and is discharged. The problems that in an existing scheme, a medium needs to flow back and forth in a cooling pipe to complete air cooling, when the inflow amount of the medium is large, the processing capacity is limited, the amount of gas generated by a fan is constant, and the air cooling capacity is limited when the medium temperature changes are solved.

This invention belongs to the field of marine engineering technology, and particularly relates to a device for protecting offshore wind turbine pile foundations from scour in reciprocating currents. The device includes a breakwater base; a breakwater core, set on the breakwater base, with a trapezoidal cross-section; a seaward slope, laid on the seaward side of the breakwater core, comprising a sedimentation zone, a sediment collection platform, and an erosion prevention zone from top to bottom; a leeward slope, laid on the seaward side of the breakwater core, with a slope of 1:1.5 to 1:3; and a breakwater crest, located at the top of the breakwater core, with a triangular cross-section, the width gradually increasing from the top downwards, and its bottom abutting against the top of the sedimentation zone, the top of the breakwater core, and the top of the leeward slope, respectively. The sedimentation zone is located at the top of the seaward slope with a slope of 1:1.5 to 1:3; the erosion prevention zone is located at the bottom of the seaward slope, abutting against the breakwater base, with a slope of 1:1 to 1:1.5; and the sediment collection platform is located between the sedimentation zone and the erosion prevention zone, with a width 1.5 to 3 times the width of the breakwater core, connecting the sedimentation zone and the erosion prevention zone.

This invention discloses an adaptive flow-guided cooling immersion liquid cooler for energy storage battery packs and a thermal management method, relating to the field of energy storage battery thermal management technology. The liquid cooler includes a liquid cooler body, a circulating water tank, immersion circulation pipelines, heat exchange flow-guided pipelines, adaptive flow-guided heat exchange components, and a control system. The liquid cooler body is divided into a liquid distribution chamber, an immersion chamber, and a heat exchange chamber. Left and right guide vanes are staggered to form an S-shaped reciprocating flow channel, and the vane tilt angle is adjustable. Dual circulation pipelines connect the immersion chamber and the heat exchange chamber respectively. The thermal management method divides four heat dissipation modes according to the cooling medium temperature. Under high load conditions, it optimizes the pipeline flow velocity and guide vane tilt slope through a thermal-fluid coupling mathematical model and dynamic weight allocation. This invention can optimize the flow field distribution, enhance microscopic heat transfer, effectively improve the uniformity of the battery pack temperature field, reduce the risk of thermal runaway, adapt to the efficient and stable heat dissipation requirements of large-capacity, high-power-density energy storage batteries, and improve battery operating safety and cycle life.

The utility model discloses an anti-scalding electric iron which comprises an electric iron body, an L-shaped plate is installed in the electric iron body in a sliding mode, a heating plate is installed at the bottom of the L-shaped plate in a sliding mode, a cooling box is fixedly installed in the electric iron body, and a piston is installed in the cooling box in a sliding mode. A top column fixedly installed on one side of the L-shaped plate is fixedly installed on the top of the piston, a cooling plate is fixedly installed in the electric iron body, a cooling groove is formed in the cooling plate, the two ends of the cooling groove communicate with a liquid inlet pipe and a circulating pipe correspondingly, and the liquid inlet pipe and the fixing plate communicate with the cooling box. The cooling plate, the cooling groove, the circulating pipe, the cooling box and the like are used, heat dissipation can be conducted on an ironing bottom plate of the electric iron, the situation that heat dissipation cannot be conducted in time, and due to poor heat dissipation, aging of internal elements of the electric iron is accelerated is avoided, meanwhile, cooling liquid can flow in a reciprocating mode, circulating heat dissipation is conducted, and the service life of the electric iron is prolonged. And the cooling effect is greatly improved.

This invention discloses a modular dual-cylinder magnetorheological damper, comprising a main cylinder assembly and an outer cylinder assembly. The main cylinder assembly includes a main cylinder body and a first-stage piston, which is controllably slidably disposed within the main cylinder body, which is filled with magnetorheological fluid. The outer cylinder assembly includes an outer cylinder body and a second-stage piston installed within the outer cylinder body. Both axial ends of the outer cylinder body are connected to the main cylinder body and are respectively located on both sides of the sliding direction of the first-stage piston. The magnetorheological fluid can reciprocate between the main cylinder body and the outer cylinder body as the first-stage piston slides. This invention, through its modular design and innovative asymmetric damping force output, significantly reduces manufacturing costs, improves production efficiency and operational stability, and greatly enhances the flexibility and adaptability of the damper, providing strong support for the widespread application and further development of magnetorheological vibration reduction technology.

The invention relates to the technical field of slurry conveying, and provides a fluid end structure of a diaphragm pump for conveying high-concentration slurry and a control method.The fluid end structure comprises a base, the diaphragm pump, a slurry inlet valve, a slurry discharging valve and a connecting pipeline, and the slurry discharging valve is arranged below a diaphragm chamber of the diaphragm pump; the connecting pipeline comprises a slurry inlet pipe, a slurry distributing pipe, a slurry storage pipe, a slurry output pipe, a slurry outlet pipe, a slurry discharge pipe, a connecting pipe and a connecting bent pipe, and the slurry inlet valve, the connecting pipe and the slurry discharge valve jointly form a three-way flow channel allowing slurry to flow back and forth. The three-cylinder pump of the diaphragm pump superposes smooth flow through three pistons with the phase difference of 120 degrees from the mechanical principle, a slurry return pipe and an external pressure stabilizing device dynamically absorb a pressure peak value and compensate a flow valley value by compressing and releasing nitrogen, and therefore pipeline pressure fluctuation is controlled within an extremely low range, and the pressure fluctuation of the pipeline is controlled within an extremely low range. The problems of large fluctuation and easy scaling in the prior art are solved.

The invention discloses an industrial wastewater rapid treatment device which comprises a grid type roller arranged horizontally in the axial direction, a spiral piece is arranged in the roller, a sealing box is arranged below the roller, an arc-shaped sealing plate is arranged in the sealing box, and the sealing plate is used for sealing the arc-shaped lower portion of the roller. According to the industrial wastewater rapid treatment device, the roller is used for filtering wastewater and separating solid residues in the wastewater, the liquid collecting space at the bottom of the roller can store a small amount of liquid, the liquid collecting space is used for collecting the liquid, and the liquid collecting space is used for filtering the wastewater and separating solid residues in the wastewater. Solid residues are dispersed in the liquid, the probability that the solid residues adhere to the inner wall of the roller is reduced, meanwhile, the conveying efficiency of the solid residues in the roller is improved, the sealing box can further form a temporary container at the bottom of the roller, and the liquid in the temporary container flows between the sealing box and the roller in a reciprocating mode to form double-face washing on the net face at the bottom of the roller.

The utility model discloses a lubricating oil processing agitator, including the inner box, the outside of inner box is provided with the outer box, and the cavity is formed between inner box and outer box, and the bottom of cavity is provided with a plurality of communicating inner box's flow channel, and the lower surface of outer box is fixedly installed with the sealing base through bolt, and the inner side of inner box is rotatably connected with the positive direction stirring rod and a plurality of reverse stirring rods, and the upper surface of outer box is provided with the pressure control mechanism of control cavity gas pressure, and the inner wall of discharge pipe is provided with the electromagnetic valve. Through the positive direction stirring rod and a plurality of reverse stirring rods rotate simultaneously, can be to the lubricating oil in the inner box positive direction stirring and reverse stirring, through setting pressure control mechanism, through increasing the air pressure in the cavity and reducing the air pressure in the cavity, can make the lubricating oil reciprocating flow through the flow channel between the inner box and the cavity, to further improve the stirring effect, the utility model discloses the stirring mode is various, and the stirring mixing effect is improved greatly.

The utility model relates to the technical field of polyester staple fiber processing, in particular to a reciprocating machine for polyester staple fiber processing, which comprises a reciprocating machine base, a support plate is fixed at the top end of the reciprocating machine base, a connecting hole is arranged on the surface of the support plate, a connecting shaft is fixed on the surface of an operating plate, and the connecting shaft is rotatably connected in the connecting hole. A first mounting seat and a second mounting seat are fixed on the surface of the operation plate; the reciprocating machine has the beneficial effects that the operation plate intermittently rotates above the reciprocating machine base, one end of a limiting rod stays in a limiting rod mounting groove after rotation is completed, and the other end of the limiting rod is inserted into a first limiting groove or a second limiting groove to limit the operation plate, so that the stability of the operation plate in the operation process of the spray gun is guaranteed; lubricating oil can flow between the upper end and the lower end of the inner wall of the operation panel in a reciprocating mode, waste of the lubricating oil can be avoided, and a certain section of the operation panel can be prevented from being in a poor lubrication state.

The utility model relates to a material conveying system which comprises a stirring working state and comprises a liquid storage container, a stirring device, a stirring device and a control device. The conveying pipe is communicated to the liquid storage container; the liquid return part is arranged on the conveying pipe and is configured to drive the materials to intermittently and reversely flow in the conveying pipe in a stirring working state, and the materials are driven to positively flow in the conveying pipe by utilizing negative pressure generated by reverse flow in at least part of pipelines of the conveying pipe in an intermittent period, so that the materials can be conveyed to the conveying pipe through the liquid return part; and the reciprocating flow of the material is realized. According to the scheme, materials in the conveying pipe are backflushed to the liquid storage container through the liquid return part, the materials in the liquid storage container are sucked into the conveying pipe through negative pressure, the two actions are alternately carried out to stir the materials, the forward discharging function and the reverse backflow stirring function are integrated through the single conveying pipe, the single-pipeline double-function design is achieved, and the stirring efficiency is improved. A pipeline system is simplified, and cleaning and maintenance are facilitated.

The invention discloses a pressure selection driving large-flow electromagnetic switch valve suitable for an electrically-driven static pressure system, particularly relates to an electrically-driven static pressure matched large-flow electromagnetic switch valve in the field of spaceflight, and belongs to the field of electrically-driven static pressure hydraulic systems. High pressure in the electrically-driven static pressure transformation system is screened out through the pressure screening assembly to serve as stable driving force for opening the main valve port, the main valve element of the product is not frequently opened and closed along with reciprocating flowing of oil after being opened, the damping effect of the valve port is weakened, and the safety of the product is improved. The pressure loss of the electrically-driven static pressure system and the influence on dynamic characteristics are reduced, and the problem of squeal easily occurring when the valve port is slightly opened is solved.

The invention relates to the technical field of magnetic refrigeration, in particular to a magnetic heat pump system. The magnetic refrigeration system aims at solving the problems that an existing magnetic refrigeration system is poor in applicability and low in refrigeration / heat. In order to achieve the purpose, the magnetic heat pump system comprises a plurality of magnetic refrigeration modules, each magnetic refrigeration module comprises a magnetic field assembly and a heat regenerator, and a channel allowing a heat conduction medium to flow is formed in each heat regenerator; one ends of the channels of the multiple heat regenerators communicate with the first heat exchange part at the same time; the other ends of the channels of the multiple heat regenerators communicate with the second heat exchange part at the same time; the pumping part is used for conveying a heat-conducting medium to flow among the second heat exchange part, the heat regenerator and the first heat exchange part in a reciprocating manner; and the valve group is used for controlling the flow of the heat-conducting medium flowing through each heat regenerator. According to the magnetic heat pump system, a wider application range can be achieved through the multiple magnetic refrigeration modules, and therefore the refrigeration and heating requirements under different application scenes are met.

This application discloses a molding device for rockfill dam waterstop strips, comprising: a shell, a mixing assembly, a conveying shaft, and a molding die. The mixing assembly includes two parallel mixing shafts rotating in opposite directions. Along the axial direction of the mixing shafts, blade groups on the two mixing shafts are staggered. Each blade group includes mixing blades, and each mixing blade has multiple mixing teeth arranged along the axial direction of the mixing shaft. The counter-rotation of the two mixing shafts enhances shearing and convection, efficiently breaking up agglomerates and promoting fusion. At the same time, the mixing teeth increase the contact points, refine the mixing, and improve the uniformity of mixing. In addition, the staggered arrangement of the blade groups along the axial direction allows the blade groups to alternately mix the plastic filler, promoting the axial reciprocating flow of the plastic filler, forming a three-dimensional circulation, reducing stagnation, breaking the inertia of the plastic filler's movement, improving the uniformity of mixing, avoiding stratification, accelerating the axial transmission of the plastic filler, shortening the mixing cycle, and improving the mixing efficiency.

The invention discloses a reciprocating T-shaped variable channel angular extrusion semi-solid rheoforming aluminum alloy and an integrated forming method, and belongs to the technical field of metal material machining. According to the method, the semi-solid rheoforming technology and the reciprocating type T-shaped variable channel angular extrusion technology are integrated, and slurry preparation, structure modification and part forming are continuously completed in the same die system. The core of the die is that the die is provided with a T-shaped channel and three extrusion barrels which are communicated with the T-shaped channel and have larger sections, pressure is alternately applied through a punch, so that semi-solid slurry flows between the extrusion barrels and the channel in a reciprocating mode and is sequentially subjected to forward extrusion densification and equal-channel angular extrusion shearing refinement, grains are ultra-refined to be micron, and casting defects are eliminated. And finally, directly pressing and forming by replacing the cavity die. The method solves the problem that the structure and the shape of a traditional process are difficult to consider at the same time, achieves near-net-shape, high-efficiency and low-energy-consumption integrated manufacturing of high-performance complex parts, and is particularly suitable for production of high-performance aluminum alloy parts in the fields of aerospace, new energy automobiles and the like.

The utility model discloses a low-power-consumption compressor which comprises a first compression chamber and a second compression chamber which are arranged in a sealing structure. The chamber connecting channel is arranged between the first compression chamber and the second compression chamber in a communicating manner; and gas between the first compression chamber and the second compression chamber circulates in a reciprocating manner through alternate compression movement of the pistons in the first compression chamber and the second compression chamber. The cavity connecting channel is arranged between the first compression cavity and the second compression cavity in a communicating mode, and when a piston in the first compression cavity and a piston in the second compression cavity alternately conduct compression motion, gas between the first compression cavity and the second compression cavity can circulate in a reciprocating mode; the air pressure in the compression chamber is balanced, so that the additionally increased working amount caused by overcoming vacuum is reduced, and the power consumption of the compressor is reduced.

The invention discloses quantitative anti-precipitation solid-sealed polar pole resin mixing equipment and a use method. The quantitative anti-precipitation solid-sealed polar pole resin mixing equipment comprises a tank body, and a rotatable stirring shaft is arranged in the tank body; a feeding shell is further arranged on the tank body, a circulating material guiding assembly is arranged between the feeding shell and the bottom end of the tank body, a disturbance assembly is further arranged on the feeding shell, the disturbance assembly is arranged in an inner cavity of the tank body, and the disturbance assembly is connected with a stirring shaft; the device has the beneficial effects that a raw material circulation loop between the bottom end of the tank body and the feeding shell is constructed through the circulation material guide assembly, raw materials are driven to continuously flow in a reciprocating mode, and static deposition of the raw materials at the bottom of the tank body is avoided; and meanwhile, the stirring shaft rotates to drive the disturbance assembly to synchronously work at the feeding shell, so that the circularly flowing raw materials are in full contact with the disturbance assembly and fall into the inner cavity of the tank body after being dispersed, and the stirring shaft is matched for fully stirring the raw materials in the tank body.

The utility model discloses a portable cold extraction cup which comprises a brewing assembly, a cold extraction assembly and a cold extraction assembly, the brewing assembly comprises a sleeve and a brewing pocket, a first cavity is formed in the sleeve, and the brewing pocket is arranged in the first cavity; the cup body is arranged outside the sleeve in a sleeving mode, and a second cavity is formed between the cup body and the sleeve; the main machine assembly comprises a main body, an air suction pump and an air inflation pump, the air suction pump and the air inflation pump are both communicated with one end of the first cavity, and the other end of the first cavity is communicated with the second cavity. The air suction pump is used for exhausting air in the first cavity, and liquid in the second cavity flows towards the direction of the first cavity through the brewing bag; or the inflation pump inflates the first cavity, and the liquid in the first cavity flows towards the second cavity through the brewing bag; in this way, liquid can flow among the first cavity, the brewing bag and the second cavity in a reciprocating mode so as to improve the food material extraction efficiency, the food material extraction effect is good, the overall structure is simple, and the device can be conveniently used and also can be suitable for different cup bodies.

This invention discloses a reciprocating brushing structure and a surgical instrument soaking and rinsing pretreatment device. A structure is described where a cylindrical slider is driven by an adjusting motor to slide in a circular motion, pushing a cleaning tray and the surgical instruments inside along a slide rail. Springs provide cushioning and shock absorption, allowing water to flow reciprocally through the drain holes at the bottom of the cleaning tray to rinse the surgical instruments. The structure is characterized by comprising a base plate, slide rails, a slider, a spring, a groove, a stand, an adjusting motor housing, a turntable, a connecting rod, a connecting shaft, and a cylindrical slider. The base plate is fixedly placed on the base of the surgical instrument soaking and rinsing pretreatment device. The slide rails are fixedly placed on the top surface of the base plate. Both ends of the slider are slidably connected to the two slide rails. One end of the spring is fixedly connected to the center of the top surface of the base plate, and the other end of the spring is fixedly connected to the center of the bottom surface of the slider. A groove is formed on one side of the slider. The stand is fixedly placed on the top surface of the base plate, and the adjusting motor housing is fixedly connected to the stand.

The utility model discloses a kind of high-efficiency auxiliary agent quantitative application and mixing device for polyester little water dyeing, applied to polyester fabric waterless dyeing technical field, transverse mixing bin;Paddle assembly, including pivot, blade and slide, pivot and the output shaft of energized motor are fixedly connected, pivot is along the horizontal axis of mixing bin layout, pivot two sides are provided with symmetric motion slide, slide and pivot hermetic sliding connection, one end of blade is connected on pivot through joint bearing and another end is connected on slide through joint bearing, when slide moves, blade is deflected with the connecting point of pivot as rotating center, periodic overturning blade by pivot center as fulcrum, this design can efficiently produce powerful, periodic reciprocating flow along the transverse of mixing bin.This reciprocating flow compared with one-way flow produced by fixed fan blade, can significantly reduce mixing dead zone, greatly improve the mixing uniformity of liquid in the full length range of tank body.

This invention belongs to the technical field of vehicle parts and relates to a shock absorber, including a bottom valve assembly, a working cylinder assembly, and an external nitrogen storage cylinder. The bottom valve assembly has a damping chamber for reciprocating flow of hydraulic fluid. The external nitrogen storage cylinder includes an outer cylinder and an inner cylinder spaced apart. A floating piston is slidably mounted on the inner cylinder, dividing the inner cylinder cavity into an oil chamber and a gas chamber. An overflow chamber is formed between the outer and inner cylinders. The oil chamber and the overflow chamber are connected through an overflow hole. The overflow chamber is connected to the working cylinder assembly through a return channel. The overflow hole is located at the top of the oil chamber. The shock absorber provided by this invention can solve the technical problem of hydraulic fluid cross-flow in existing nitrogen shock absorbers.

This invention discloses a device and method for locally thickening a three-pile foundation at sea under reciprocating flow conditions. The device includes: a reinforcing frame with three thickened sleeves respectively fitted onto the outer sides of the three piles; a sealing assembly formed at both ends of the thickened sleeves to create a sealed space; a fixing plate at the bottom of the thickened sleeves to fix the lower end of the sleeves to the seabed; a flow guide hood rotatably fitted onto the outer side of the thickened sleeves; multiple flow guide fins; and an air guiding mechanism. This invention absorbs vibration energy through the annular gap filled with flexible material between the thickened sleeves and the piles, suppressing seabed erosion and improving foundation adaptability. The fixed and adjustable fins at the bottom of the flow guide hood respond autonomously under reciprocating flow conditions—the adjustable fins adaptively deflect, ensuring the air curtain nozzles remain perpendicular to the water flow direction, effectively disrupting the vortex structure around the piles and significantly reducing the erosion depth. The fixing plate integrates anchoring and counterweight functions, combined with the flow guide hood to position the strong shear flow layer, achieving precise vortex suppression and anti-overturning reinforcement.

This invention discloses a flame-pressure water-tube boiler in the field of steam generation devices. The boiler has a vertically arranged furnace body with vertically arranged tubes in a concentric circular array. The tubes are arranged in three layers from the inside out. A flame-pressure plate is installed in the circular cavity formed by the inner tube layer, and the furnace chamber is located below the flame-pressure plate. Spiral coils are also arranged around the outer periphery of the tube array within the furnace body. Smoke baffles are installed between adjacent tube layers and between the outer tube layer and the spiral coils. Flow-blocking components are installed between tubes in the same layer, and on the inner or outer sides of tubes in the same layer, creating a reciprocating flow-deflecting channel within the furnace chamber between the flow-deflecting components and the smoke baffles. The outermost edge of the flow-deflecting channel connects to the exhaust port. This device achieves a small water storage capacity while producing a large steam output. It can be manufactured as a coal-fired, oil-fired, natural gas-fired, or biomass energy boiler and can be applied to various locations requiring steam.