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86results about How to "Avoid spoilers" patented technology

Automatic paint spraying device for hardware processing

The invention provides an automatic paint spraying device for hardware processing, relates to the technical field of automatic mechanical processing, so as to solve the problems that because a workpiece has small volume and high requirement for smoothness of the paint surface, during paint spraying, once dust particles carried in the air fall on the hardware workpiece, convex particles are prone to producing, the quality of a paint film is affected, moreover, the splashed paint liquid is prone to flying to surrounding operators, and the operators are adversely affected. The automatic paint spraying device comprises a base; and a paint spraying table is horizontally and fixedly installed at the part, close to the left, of the middle of the top plane of the base. According to the automatic paint spraying device, since horizontal clamping plates are correspondingly and fixedly installed at the front end edge and the rear end edge of the paint spraying table on the top plane of the base, arack is fixedly installed on a sliding table seat at the rear side of a travel hole, a protective cover can be driven to move through the movement of the sliding table seat, thus during paint spraying, the protective cover can cover the workpiece, when paint spraying is finished, the protective cover can move to the right end with the sliding table seat, and the workpiece is conveniently taken.
Owner:浙江华鑫拉链有限公司

Bending and torsion composite piezoelectric energy harvester capable of improving energy harvesting capability

The invention provides a bending and torsion composite piezoelectric energy harvester capable of improving energy harvesting capability, belongs to the technical field of water flow and air flow induced vibration energy harvesting and solves the problem that a conventional single piezoelectric cantilever beam is low in energy harvesting efficiency, and the problems that a series-type piezoelectricenergy harvester only perform bending motion, there is no influence relation between the cantilever beams, the series structure occupies large area, and structure stiffness is reduced easily by the series state, which causes structure instability. The technical main points are that a transverse piezoelectric cantilever and a longitudinal piezoelectric cantilever are arranged in a vertically-intersecting manner, achieve linkage through a positioning limiter and can carry out bending and torsion motion at the same time; a pin fin is connected in series with one end of the transverse piezoelectric cantilever, and the series connection direction is same as the water flow and air flow direction; the other end of the transverse piezoelectric cantilever establishes connection with a base througha main clamp; and the longitudinal piezoelectric cantilever establishes connection with the base through an auxiliary clamp. The bending and torsion composite piezoelectric energy harvester can perform bending and torsion motion simultaneously, thereby helping to improve energy harvesting efficiency; and the energy harvester can be widely used for harvesting energy underwater or in the air.
Owner:HARBIN INST OF TECH

Bottom boundary layer in-situ observation system suitable for shallow water viscous seabed and arrangement method thereof

The invention provides a bottom boundary layer in-situ observation system suitable for a shallow water viscous seabed and an arrangement method thereof. A hydraulic pile foundation system which is easy to manufacture, low in cost and easy to operate is established, the piling depth can be guaranteed, the anti-sedimentation and stability functions of the seabed observation system are achieved, andpiling of the designated number and positions can be conducted according to needs when the observation system is arranged; a stainless steel pipe free assembly means is adopted, an instrument arrangement area and a turbulence-free observation area are built, integration of various instruments is achieved, turbulence influences of an instrument frame body on an observation space are avoided, and the instrument arrangement area can be adjusted and matched according to user requirements; the observation frame supporting legs and the top ends of the bottom piles are systematically fixed through the foot plates, limitation of the weight of an observation system is avoided, and the defects of a settlement plate are overcome. All the components are convenient to replace or maintain, the cost is low, the bottom boundary layer in-situ observation system can be widely applied, and the problems of full-layer, multi-parameter, continuous, stable, high-cost and the like of bottom boundary layer in-situ observation are effectively solved.
Owner:OCEAN UNIV OF CHINA

Reliable braking fast falling preventing hanging basket device for building construction

The invention discloses a reliable braking fast falling preventing hanging basket device for building construction. The reliable braking fast falling preventing hanging basket device for building construction comprises a base, rolling wheel mechanisms, a driving motor, a hanging basket, a coiling wheel and a fast falling preventing device; a sliding base is arranged on a slide rail on the left side of the top of the base in cooperation; a main braking shaft and an auxiliary braking shaft are installed on the right side of a second support on the sliding base; the fast falling preventing deviceis supported and fixed to the right side of the top of the base through a first support; a coiling shaft is installed on the middle portion of the fast falling preventing device; a driven gear is installed on the portion, on the left side of the fast falling preventing device, of the coiling shaft and is connected with a driving gear installed on a driving shaft of the driving motor in an engaged manner; the coiling wheel is installed on the portion, on the right side of the fast falling preventing device, of the coiling shaft; a rope is connected to the coiling wheel in a winding manner; the hanging basket is arranged at the other end of the rope; and the rolling wheel mechanisms are arranged on the bottom outer ring of the base. The reliable braking fast falling preventing hanging basket device for building construction is stable and reliable, high in braking stability and capable of preventing the hanging basket from falling fast during a fault of the device, and a safety guarantee is provided for building construction.
Owner:九江市建设监理有限公司

Direct liquid cooling laser gain device based on split type flow channel

The invention discloses a direct liquid cooling laser gain device based on a split type flow channel. The device comprises a device outer frame, a device inner frame, a crystal barrier strip, an incoming flow guide cone, a homogenizing grid, a micro-channel separation strip, a dissipation section crystal, a light transmission window, a laser gain crystal, a recovery section crystal and an outflowcone. Cooling liquid flows into the device outer frame after being shunted by an in-cone flow guide plate in the incoming flow guide cone, and enters the device inner frame after being homogenized bythe homogenizing grid. In a micro-channel of the inner frame, turbulent flow is further dissipated by flowing through a dissipation section crystal area firstly, the speed uniformity of liquid reaching the gain crystal in the spanwise direction is guaranteed, and the liquid flows out of the device inner frame after passing through the recovery section crystal. A small amount of liquid flows out through a gap between the inner frame and the outer frame of the device and is used for cooling the laser light transmission window. All liquid flows out of the device after being converged at the outflow cone. The device is compact and small in structure, and the flow velocity of liquid passing through the gain medium can be uniform.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS

Turbo fan type sand washing sand water separation device

The invention discloses a turbofan type sand-water separation device for sand washing. The turbofan type sand-water separation device comprises a screw type sand-water separator and a turbofan type sand washing drum. The screw type sand-water separator comprises a water collection tank, a U-shaped conveying groove and a spiral conveyor. The turbofan sand washing drum comprises an inner rotating cylinder and a closed fixed shell. The inner rotating cylinder is provided with a horn-shaped base, a plurality of wave-shaped paddles which are distributed in a scattered manner are fixedly arranged on the outer wall of the inner rotating cylinder, overflow holes are formed in the upper portion of the inner rotating cylinder and located in concave positions of the wave-shaped paddles, a tangential water inlet is formed in the side wall of the closed fixed shell, the tangential water inlet is right opposite to the outwards-convex surfaces of the wave-shaped paddles so that the wave-shaped paddles can be directly flushed, and a sand washing outlet is formed in the bottom of the closed fixed shell. Before entering the screw type sand-water separator, a sand-water mixture is subjected to turbofan sand washing, carbon sources in sand are released in the sand washing process, and it is ensured that no objectional odor exists in discharged sand; and then removing of fine sand is intensified through stream guidance and sedimentation, and the separation effect and the separation efficiency are improved.
Owner:CRRC CONSTR ENG CO LTD

Array arrangement type piezoelectric energy harvester applied to non-directional flow

ActiveCN109951106ARealize Periodic OscillationIncentives are simplePiezoelectric/electrostriction/magnetostriction machinesGear transmissionVibration energy harvesting
The invention discloses an array arrangement type piezoelectric energy harvester applied to the non-directional flow, and belongs to the technical field of water flow and air flow induced vibration energy harvesting. The invention aims to solve the problems in the prior art that although most existing energy harvesters in the flow induced vibration energy harvesting field can realize the good energy harvesting effect, the energy harvesters are fixed and cannot be applied to the non-directional flow, thus being limited in application range. According to the technical scheme of the invention, the energy harvester comprises a plurality of piezoelectric vibrators, an array clamp mechanism, a guide wing mechanism, a gear transmission mechanism and a shell. The gear transmission mechanism is arranged in the shell. A gear transmission set comprises a plurality of driving gear shafts and a driven gear shaft. The guide wing mechanism penetrates through the shell to be connected with the drivinggear shafts. The upper end of the driven gear shaft penetrates out of the shell to be connected with the array clamp mechanism. The piezoelectric vibrators are arranged on the array clamp mechanism.The guide wings of the guide wing mechanism are located between the array clamp mechanism and the shell. The array arrangement type piezoelectric energy harvester is applied to the non-directional flow, wherein the motion states of the vibrators can be mutually coupled. The energy harvesting efficiency can be improved.
Owner:HARBIN INST OF TECH

VTOL fixed wing unmanned aerial vehicle and fixed wing structure thereof

The invention relates to the field of unmanned aerial vehicle structures and aims to solve a problem that an aileron handling performance of a fixed wing unmanned aerial vehicle in the prior art is poorer, and provides a VTOL fixed wing unmanned aerial vehicle and a fixed wing structure thereof. The fixed wing structure comprises a main wing and an aileron movablely hinged at a trailing edge of the main wing. The aileron comprises a spar, a plurality of ribs arranged along the spar's lengthwise direction at intervals and attached to the spar, and a skin covering the outer surface of the ribs.The aileron is connected with the main wing through a rotating shaft in a rotating mode; an axis of the rotating shaft is along the chord direction of the main wing and is located between the spar andthe main wing. The main wing is connected with the aileron to the spar through a drive mechanism in a transmission mode; the drive mechanism is connected between the bottom surface of the trailing edge and the spar, for driving the aileron to swing around the rotating shaft. The VTOL fixed wing unmanned aerial vehicle comprises a fuselage and fixed wing structures on both sides. The VTOL fixed wing unmanned aerial vehicle and the fixed wing structure thereof have the beneficial effects of compact structure, neat appearance and good maneuverability.
Owner:四川宝天智控系统有限公司

Air-exhaust-type wind-sand flow gradient high sand-collecting rate device for wind-sand environment wind tunnel

The invention relates to an air-exhaust-type wind-sand flow gradient high sand-collecting rate device for a wind-sand environment wind tunnel. The air-exhaust-type wind-sand flow gradient high sand-collecting rate device is characterized in that a sand dust gradient collector is provided with wind-sand flow sand inlets, gradient channels communicate with the wind-sand flow sand inlets, collector placing openings are connected with the gradient channels, air-exhaust connecting pipes are mounted on gradient leaking nozzles exposed out of the collector placing openings correspondingly, the gradient leaking nozzles are perpendicular to the bed surface downwards and are connected with the air-exhaust connecting pipes, the air-exhaust connecting pipes are connected with wind-sand flow air-exhaust branch pipes, wind-sand flow separating tanks of the respective channels sleeve outlets of the wind-sand flow air-exhaust branch pipes, the wind-sand flow separating tanks communicate with weighingbottles, high-precision weighing sensors are placed at the bottoms of the weighing bottles, and the sand delivery amounts in the weighing bottles are measured by the high-precision weighing sensors. According to the air-exhaust-type wind-sand flow gradient high sand-collecting rate device, the measured sand delivery amounts are precise and errorless, and data support is provided for disclosing thechange law that a wind-sand flow passes through a flow field and for researching the relation between the wind speed and a soil structure as well as the relation between the soil water content and soil wind erosion.
Owner:COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE

Mira separation structure model for air automotive aerodynamics research

The invention proposes a Mira separation structure model for air automotive aerodynamics research. The Mira separation structure model comprises a main body, a tail cover, an intermediate plate and abottom plate, wherein the main body is an automotive body model framework, a front half part of the main body is an engine cabin and driver cabin, the engine cabin and the driver cabin both are cavities, a passenger cabin and a rear compartment position of a rear half part of the main body are cavities, the intermediate plate, the bottom plate and the main body are spliced to seal the cavity, a mortise is arranged on a back surface of a front row part of the passenger cabin, the tail cover is arranged on the intermediate plate, a tenon is arranged at a front end of the tail cover and is inserted into the mortise on the back surface of the front row part of the passenger cabin, an outer surface is flush after an edge of a lower end of the tail cover is spliced with a rear half part framework of the main body, and a plurality of pressure measurement holes are formed in each surface of the automotive body. By the model, the model weight is greatly reduced, and carrying and adjustment arefacilitated; and meanwhile, a measurement device is also convenient to install in the model, turbulent flow caused by an external measurement device to intervene experiment data can be prevented, thetail cover can be replaced, and comparison research is performed.
Owner:HUNAN UNIV

Modular directional flow pipeline type piezoelectric energy harvester arranged in a circumferential array

ActiveCN110380645AReduce distractionsReduces interference while reducing overall structural massPiezoelectric/electrostriction/magnetostriction machinesCurrent limitingPiezoelectric actuators
The invention relates to a modular directional flow pipeline type piezoelectric energy harvester arranged in a circumferential array, which belongs to the technical field of water flow and air flow induced vibration energy harvesting and solves the problems that energy harvesters in the existing flow-induced energy harvesting are mostly fixed, the mutual coupling relation is difficult to adjust and that the application limitation is large. The piezoelectric energy harvester comprises a flow-gathering and speed-accelerating coil and at least one piezoelectric module, the piezoelectric modules are connected in series when there are two or more piezoelectric modules, each piezoelectric module includes a plurality of piezoelectric vibrators, a central support, a current-limiting outer ring andconnecting screws; the central support and the current-limiting outer ring are coaxially arranged inside and outside and are connected through a plurality of connecting screws, and the plurality of piezoelectric vibrators are arranged in a circumferential array between the central support and the current-limiting outer ring; the flow-gathering and speed-accelerating ring is coaxially arranged onthe outer end face of the current-limiting outer ring on the incoming side; and a plurality of long holes are formed in the central support along the circumferential direction of the central support.The piezoelectric energy harvester can be widely applied to energy collection in the fields of stream pipelines, distillation pipelines, tap water pipelines, exhaust pipelines and the like.
Owner:HARBIN INST OF TECH

Polishing solution circulation purification processing device

The invention discloses a polishing solution circulation purification processing device. The polishing solution circulation purification processing unit comprises a box body, a polishing solution storage tank is arranged at the bottom of one side of the box body, a polishing solution separating device is arranged at the top of the polishing solution storage tank, the polishing solution storage tank is internally provided with a polishing solution stirring unit, a polishing solution proportion stirring unit is arranged at the bottom of the other side of the box body, and a polishing solution sediment secondary separation unit is arranged on the upper part of the polishing solution proportion stirring unit; the polishing solution separating device comprises a rotary barrel, a rotary barrel driving motor and a lifting mechanism; and the rotary barrel comprises an inner barrel and an outer barrel. Three-level layering is generated on a waste polishing solution through matching of the polishing solution separating device and the polishing solution storage tank, the polishing solution rotating at the high speed is separated according to the abrasive particle density in the polishing solution, secondary separation can be conducted on polishing solutions which do not coincide with the requirements, abrasive particles coinciding with the using requirements are directly output, polishedand machined, and the separation efficiency is greatly improved.
Owner:NORTHEASTERN UNIV

Liquid discharging device, filtering system and semiconductor processing equipment

The invention provides a liquid discharging device, a filtering system and semiconductor processing equipment, and belongs to the technical field of semiconductor processing. The liquid discharging device comprises a siphon and a guide pipe; the siphon is provided with a liquid outlet, a first liquid inlet and a second liquid inlet communicated with the first liquid inlet and the liquid outlet respectively, the guide pipe is communicated with the second liquid inlet, and when the liquid outlet is subjected to suction force, a pressure difference is formed between the first liquid inlet and thesecond liquid inlet so as to form siphon force at the second liquid inlet; and the guide pipe guides the to-be-filtered liquid under the action of siphon force, and then the to-be-filtered liquid enters the second liquid inlet and is discharged through the liquid outlet. According to the liquid discharging device provided by the invention, to-be-filtered liquid can flow into the siphon in a directional manner; the liquid to be filtered is effectively prevented from forming turbulent flow without a fixed flow direction, so that the to-be-filtered liquid effectively enters a subsequent circulating filtration system, the liquid discharge efficiency and the removal rate of reactants in the to-be-filtered liquid are improved, and the treatment effect of the semiconductor treatment equipment isfurther improved.
Owner:厦门通富微电子有限公司

Novel soot-formation-preventing SCR denitration device

The invention discloses a novel soot-formation-preventing SCR denitration device. The novel soot-formation-preventing SCR denitration device comprises an SCR reactor body, an inlet cover, a horizontalflue, a turning flue, a plurality of flow straightening grids, sound wave soot blowers and turbulent-flow air pipes. The novel soot-formation-preventing SCR denitration device has the advantages thatthe hole distances of grid cells, away from the 1/4 of a firing boiler end, of the flow straightening grids are alternately arranged according to the manner of 100*100mm and 200*200mm, the hole distances of grid cells, from the central line to the 1/4 of a direction away from the firing boiler end are alternately arranged according to the manner of 100*100mm and 200*200mm, the pore diameter distance of parts easy in soot formation is increased, and soot formation is avoided; the sound wave soot blowers are arranged above the inlet cover of the SCR reactor and directly face the parts easy in soot formation of the grids, and soot formation, blocking grid holes, of the flow straightening grids during operation can be prevented; the turbulent-flow air pipes are arranged on a horizontal flue guide plate and the upper portion of a turning flue guide plate, steam blowing is started regularly to generate turbulent flow to allow flue gas entering the SCR reactor to be evenly distributed, and catalyst damage degree is lowered.
Owner:贵州西能电力建设有限公司 +1
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