Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

58results about How to "Reduce the probability of impact" patented technology

Artificial hip joint consisting of multilayer shell core composite structural components

The invention discloses an artificial hip joint consisting of multilayer shell core composite structural components. The artificial hip joint comprises an artificial acetabulum and an artificial thigh bone. The artificial hip joint is characterized in that: the artificial acetabulum has a multilayer shell core composite structure and consists of a ceramic acetabulum lining, a transition layer, a porous metal, a porous alloy or a porous toughened ceramic acetabulum shell; the artificial thigh bone has a multilayer shell core composite structure and consists of a ceramic spherical shell layer, a transition layer and a toughened ceramic inner core. The ceramic acetabulum lining and the spherical shell layer of the artificial thigh bone have high hardness, corrosion resistance and abrasion resistance; the artificial acetabulum shell layer and the inner core of the thigh bone have high toughness and impact resistance; and the transition layers are made of gradient composite materials between the materials for the shell layer and the inner core layer, and have the functions of increasing the bonding strength between the shell layer and the inner core layer, reducing the interface stressbetween the shell layer and the inner core layer and the like. The artificial hip joint has the characteristics of long service life, high reliability, high performance and the like.
Owner:SUZHOU DINGAN ELECTRONICS TECH

Pantograph

The invention discloses a pantograph which comprises an underframe, a lower arm rod, an upper arm rod, a pull rod, a lifting pantograph driving device and a pantograph head. The pantograph head comprises a pantograph corner, a pantograph head rotating shaft, an elastic buffer device and a sliding plate. A connecting part extends and is arranged at the upper end of the upper arm rod and hinged to the pantograph head rotating shaft, and the length between the joint of the pantograph head rotating shaft and the connecting part is smaller than the length between the joint of the pantograph head rotating shaft and the elastic buffer device and the sliding plate is smaller than the length between the joint of the pantograph head rotating shaft and the elastic buffer device and the sliding plate. The pantograph further comprises a balance rod system, the balance rod system comprises a first rod hinged to the upper end of the lower arm rod, a second rod hinged to the upper end of the upper arm rod, a fourth rod hinged to the pantograph head rotating shaft and a third rod, wherein one end of the third rod is hinged to the free end of the second rod, and the other end of the third rod is hinged to the free end of the fourth rod. The other end of the first rod is hinged to the middle of the second rod. The pantograph can reduce stress of the balance rod system and air lift force of the sliding plate, improve fatigue life of a structure member and have the advantages of being high in current collection stability and small in wind resistance.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD

Designing method of fish-friendly axial flow pump based on fish survival rate prediction

The invention provides a designing method of a fish-friendly axial flow pump based on fish survival rate prediction. A relation between a pump design parameter and the fish passing survival rate is predicted by adopting a mathematical model, and thus a fish-friendly design of an axial flow pump is guided. The mathematical model is mainly composed of the blade leading edge impact probability and the impact death rate; the impact probability is a ratio of the time that fishes pass through the cross section of passage of the blade leading edge and the time needed by an impeller rotating around a blade pitch; the impact death rate is relevant to the impact velocity, the fish length and the thickness of the blade leading edge; and the impact velocity adoptsa velocity component of a vertical leading edge. The fish-friendly axial flow pump design comprises the following steps: lowering the blade leading edge impact probability by adopting two blade impellers, lowering the impact death rate by adopting the blade leading edge with linear sweepforward protraction, and ensuring good hydraulic performance by virtue of airfoil parameter design. According to the designing method, a fish survival rate prediction model is high in goodness of fit to an experiment value, and the fish-friendly axial flow pump designed by guidance can greatly lower the fish death rate.
Owner:JIANGSU UNIV

Travelling safe guarantee dispatching method and system for electric power tunnel routing inspection robot

The invention discloses a travelling safe guarantee dispatching method and system for an electric power tunnel routing inspection robot. The method comprises the steps that a dispatching center collects robot position information through a position collecting device mounted on the robot and monitors the position of the robot in real time; when it is found that the robot moves to the position awayfrom a firefighting door by a first set range, the dispatching center collects the open-close state of the current firefighting door through a monitoring terminal; the dispatching center determines the open-close state of the firefighting door for the first time; according to the open-close state of the firefighting door, the dispatching center sends an open-close instruction to the firefighting door through the monitoring terminal, and meanwhile the dispatching center sends an instruction of advancing continuing or stopping to the robot; if the robot continues advancing, when the position collecting device of the robot collects the information that the robot enters into a second set range of the firefighting door, the robot communicates with a controller of the current firefighting door,and the robot determines the open-close state of the firefighting door for the second time; and according to the open-close state of the firefighting door, the robot sends the instruction of advancingcontinuing or stopping to the robot.
Owner:康威通信技术股份有限公司

Ecologically-friendly type axial flow pump structure for fishes to pass through

ActiveCN104613001AReduce the chance of hitting fishAvoid damagePump componentsAxial flow pumpsAxial-flow pumpImpeller
The invention provides an ecologically-friendly type axial flow pump structure for fishes to pass through. The ecologically-friendly type axial flow pump structure comprises axial flow pump blades, an impeller hub, a runner chamber, a guide vane hub and guide vane blades. One end of each guide vane blade is connected with the guide vane hub, and the other end of each guide vane blade is connected with a guide vane section pipeline. Blade inlet edges of the axial flow pump sweep forward in the rotating direction and downwards extend in the axial direction to form streamlines, and the wing-section heads of the sections of the axial flow pump blades are semicircular arcs. The radial radius of the impeller hub is gradually increased and then is gradually reduced in the liquid flow direction, and the radial radius of the blade inlet edges is maximal. A circular ring is welded to the inlet of the runner chamber. The number of the guide vane blades is not larger than five, and the guide vane inlet edges are the streamlines. A large space is formed by the guide vane inlet edges and blade outlet edges. According to the axial flow pump structure, the probability that the blades collide with the fishes can be greatly reduced, meanwhile, the death rate of the fishes after the fishes are impacted by the blades is reduced, and therefore the survival rate of the fishes is greatly increased, and various fishes can pass through the axial flow pump suitable for large-and-medium pump stations.
Owner:JIANGSU UNIV

Pantograph head balance device

The invention discloses a pantograph head balance device. The pantograph head balance device comprises a balance rod system located under an upper arm rod, and the balance rod system comprises a first rod hinged to the upper end of a lower arm rod, a second rod hinged to the upper end of the upper arm rod, a fourth rod hinged to a pantograph head rotating shaft and a third rod of which one end is hinged to the free end of the second rod and the other end is hinged to the free end of the fourth rod; the other end of the first rod is hinged to the middle of the second rod, the upper end of the upper arm rod extends to form a connection part, and the connection part is hinged to the pantograph head rotating shaft. According to the pantograph head balance device, a multi-connecting rod balance device with multi-sectional design is adopted to replace a traditional structure of one straight balance rod, the rotation angle of the pantograph head can remain unchanged in the rising and falling process of a pantograph, and the current collection stability is improved. Due to the fact that the balance device is arranged under the upper arm rod in a hidden mode, the windward area of the pantograph is decreased, wind resistance in high speed operation is reduced, and the aerodynamic performance of the pantograph is improved.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO

Unmanned aerial vehicle with good balance property

The invention relates to an unmanned aerial vehicle with the good balance property. The unmanned aerial vehicle comprises a main body and four propellers and further comprises an adjusting mechanism and four rain-shielding mechanisms. The adjusting mechanism comprises an adjusting assembly, a first motor, a first transmission belt and two horizontal moving assemblies. Each horizontal moving assembly comprises a lead screw, a transmission wheel and a moving block. The adjusting assembly comprises a connecting block, two second motors, two driving wheels, two second transmission belts and two positioning rods. Each rain-shielding mechanism comprises a telescopic assembly and a rain-shielding plate. Each telescopic assembly comprises a cross rod, a driving unit, a telescopic frame, a connecting plate, two sliding blocks, two connecting rods, two transmission blocks and two limiting units. According to the unmanned aerial vehicle with the good balance property, the positions of express parcels are adjusted through the adjusting mechanism, the gravity center of the whole unmanned aerial vehicle is adjusted conveniently, thus the balance property of the unmanned aerial vehicle is higher;and express objects can be shielded through the rain-shielding mechanisms, the probability that the express objects are affected by rainwater is decreased, and thus the practicability of the unmannedaerial vehicle is higher.
Owner:浙江翔龙航空科技有限公司

High-voltage transformer and monitoring system thereof

The invention discloses a high-voltage transformer and a monitoring system thereof, and relates to the field of power equipment. The high-voltage transformer comprises a transformer, a transformer support post, a support plate and a fixed plate, wherein two fixed posts are arranged on a surface of the fixed plate, the transformer comprises a hanging plate, a bottom plate and a device, at least twospring shockproof devices are arranged at a bottom surface of the bottom plate, the support plate and at least two fixed blocks are arranged at a side surface of each fixed post, and a draught fan, aremote data communication antenna and a monitoring camera are arranged on a transformer body of the transformer. A support structure having a shockproof and buffer effect is designed on the transformer body of the transformer, the draught fan, a wireless signal emission device and a monitoring camera device are arranged on the support structure, a clearance lamp and a cooling fan are arranged onthe transformer body of the transformer, a sensor is arranged in the transformer body of the transformer and is used for detecting an internal environmental, and thus, the problems of real-time monitoring of the high-voltage transformer, probably sliding, spontaneous combustion, collision by bird and aircraft at night are solved.
Owner:合肥云智物联科技有限公司

Forest resource carbon sink evaluation and collection system based on multi-source spatial data

The invention discloses a forest resource carbon sink assessment and collection system based on multi-source spatial data, which comprises a collection box, four corners of the bottom end of the collection box are fixedly connected with fixed vertical rods, the bottom ends of the four fixed vertical rods are provided with moving wheels, one side of the collection box is provided with a soil extraction and collection mechanism, and the other side of the collection box is provided with a soil sampling and collection mechanism. Soil in a forest is taken out to serve as a detection sample by utilizing the sampling barrel, soil at different positions can be classified and placed in different storage cavities, and a driving motor and a lead screw can drive a moving block and an extending block to move, so that the sampling barrel can move to one side of the corresponding storage cavity; the hydraulic telescopic rod and the rotating motor can drive the sampling barrel to lift and rotate, so that the sampling barrel is gradually embedded into the soil of the forest to sample and collect the soil, the content of carbon in the soil of the forest can be conveniently compared and detected subsequently, and sampling can be carried out from different positions and placed in the storage cavities in a classified manner.
Owner:深圳市不动产评估中心(深圳市地质环境监测中心)

Electric pole protection warning device

The invention relates to an electric pole protection warning device. The electric pole protection warning device comprises a device body used for being arranged on an electric pole in sleeving and wrapping modes, the device body is an open ring columnar warning body formed by detachably splicing a plurality of arc-shaped warning plates in the circumferential direction, a buffer pad is fixed to theinner surface of each arc-shaped warning plate, an inserting block is arranged on one side in the circumferential direction of each arc-shaped warning plate, an inserting groove is formed in the other side in the circumferential direction of each arc-shaped warning plate, and when every two adjacent arc-shaped warning plates are spliced, the inserting block of one arc-shaped warning plate is inserted into the inserting groove of the other arc-shaped warning plate so that the two adjacent arc-shaped warning plates can be fixed together. The arc-shaped warning plates of the corresponding numbercan be selected according to the specification and size of the electric pole to be spliced into the warning sleeve of the corresponding size, so that installation and use on the electric poles of different specifications and sizes are achieved, field installation is particularly facilitated, and the advantages of being wide in application range, good in buffering performance, high in anti-theft performance, good in warning effect, rich in function and the like are achieved.
Owner:浙江金飞龙工贸有限公司

An eco-friendly axial flow pump structure that can pass fish

ActiveCN104613001BReduce the chance of hitting fishAvoid damagePump componentsAxial flow pumpsAxial-flow pumpImpeller
The invention provides an ecologically-friendly type axial flow pump structure for fishes to pass through. The ecologically-friendly type axial flow pump structure comprises axial flow pump blades, an impeller hub, a runner chamber, a guide vane hub and guide vane blades. One end of each guide vane blade is connected with the guide vane hub, and the other end of each guide vane blade is connected with a guide vane section pipeline. Blade inlet edges of the axial flow pump sweep forward in the rotating direction and downwards extend in the axial direction to form streamlines, and the wing-section heads of the sections of the axial flow pump blades are semicircular arcs. The radial radius of the impeller hub is gradually increased and then is gradually reduced in the liquid flow direction, and the radial radius of the blade inlet edges is maximal. A circular ring is welded to the inlet of the runner chamber. The number of the guide vane blades is not larger than five, and the guide vane inlet edges are the streamlines. A large space is formed by the guide vane inlet edges and blade outlet edges. According to the axial flow pump structure, the probability that the blades collide with the fishes can be greatly reduced, meanwhile, the death rate of the fishes after the fishes are impacted by the blades is reduced, and therefore the survival rate of the fishes is greatly increased, and various fishes can pass through the axial flow pump suitable for large-and-medium pump stations.
Owner:JIANGSU UNIV

Multifunctional wood splitting operating table

InactiveCN108527530AProblems Affecting Cut FlatnessGuaranteed tidyGuide fencesGripping devicesCircular sawWood splitting
The invention discloses a multifunctional wood splitting operating table which comprises a table platform and a circular saw disc and further comprises an upright column and a transverse bracket; theupright column is arranged on the side of the table platform; one end of the transverse bracket can move along the axial direction of the upright column and is fixed to the upright column through a fixing plate and a mounting bolt; a driving motor, two supporting arms and a belt pulley are arranged on the transverse bracket; two mutually parallel grooves and a cutting port are formed in the uppersurface of the table platform; the circular saw disc is located over the cutting port; a cutting wire is coincided with the center line of the cutting port; and sliding grooves are formed in the grooves. The multifunctional wood splitting operating table further comprises two mutually parallel rectangular solid steel plates and dimension scales; the dimension scales are located between the two rectangular solid steel plates and are perpendicular to the cutting wire. Wood can be cut accurately, the multifunctional wood splitting operating table is prevented from being affected by a circular sawing machine, and the purpose of reducing influence on a finished cut product by human factors is achieved.
Owner:四川安易达科技有限公司

Coal chemical industry solid waste drying tail gas treatment device and treatment method

PendingCN110935277AAchieve whiteningTo achieve the purpose of whiteningCombination devicesGas treatmentFlue gasDust control
The invention belongs to a coal chemical industry solid waste drying tail gas treatment device and treatment method. The device comprises a drying machine, a dry ash discharging device is arranged atthe tail end of the drying machine, the bottom of the dry ash discharging device is connected to a finished product warehouse through a dry ash conveying device, a gas outlet in the top of the dry ashdischarging device is connected to a peculiar smell absorption tower through a dust removal unit, a gas phase outlet of the peculiar smell absorption tower is connected to a flue gas condensate collector through a gas-gas heat exchanger tube, a gas phase outlet of the flue gas condensate collector is connected to an outer cylinder of a sleeve type chimney, a shell pass inlet of the gas-gas heat exchanger is connected to an air outlet of a system air cooler through a first tee joint, and a second tee joint and a system induced draft fan are arranged between a gas phase outlet of the flue gas condensate collector and the outer cylinder of the sleeve type chimney. The system has the advantages of energy conservation, environmental protection, high resource utilization rate, low environmentalinfluence rate, stable operation, low cost and capability of realizing white smoke removal of tail gas.
Owner:HENAN XINLIANXIN FERTILIZER

Axial flow pump impeller and axial flow pump

The invention provides an axial flow pump impeller and an axial flow pump. The axial flow pump impeller comprises a flow guide cap 1, impeller blades 2 and an impeller hub 3; the flow guide cap 1 is of a sphere local structure, the impeller hub 3 is of a circular truncated cone structure, the flow guide cap 1 is connected with the bottom of the impeller hub 3, and the generatrix of the impeller hub 3 is tangent to the contour line of the sphere local structure; the impeller blade 2 is fixed on the impeller hub 3 and comprises a blade front edge 4, a blade rear edge 5 and a blade rim 5; and theradius of a blade rim 6 is gradually increased in the liquid flow direction, the plane where the blade rim 6 is located is a circular truncated cone side face, and the generatrix of the circular truncated cone side face where the blade rim 6 is located is parallel to the generatrix of the impeller hub 3. The impeller with the gradually-changed outer diameter is adopted, the outer diameter of theinlet of the impeller is small, the axial speed of liquid flow and pump passing organisms is increased, and therefore the collision probability of the organisms and the blade front edge 4 can be reduced; and in addition, the diameter of the outlet of the impeller is kept large, and it can be guaranteed that the pump lift and efficiency meet the use requirements of a pump station.
Owner:JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH +1

A pantograph head balancing device

The invention discloses a pantograph head balance device. The pantograph head balance device comprises a balance rod system located under an upper arm rod, and the balance rod system comprises a first rod hinged to the upper end of a lower arm rod, a second rod hinged to the upper end of the upper arm rod, a fourth rod hinged to a pantograph head rotating shaft and a third rod of which one end is hinged to the free end of the second rod and the other end is hinged to the free end of the fourth rod; the other end of the first rod is hinged to the middle of the second rod, the upper end of the upper arm rod extends to form a connection part, and the connection part is hinged to the pantograph head rotating shaft. According to the pantograph head balance device, a multi-connecting rod balance device with multi-sectional design is adopted to replace a traditional structure of one straight balance rod, the rotation angle of the pantograph head can remain unchanged in the rising and falling process of a pantograph, and the current collection stability is improved. Due to the fact that the balance device is arranged under the upper arm rod in a hidden mode, the windward area of the pantograph is decreased, wind resistance in high speed operation is reduced, and the aerodynamic performance of the pantograph is improved.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD

An axial flow pump impeller and axial flow pump

The invention provides an impeller of an axial flow pump and an axial flow pump. The impeller of the axial flow pump includes a diversion cap 1, impeller blades 2 and an impeller hub 3; The cap 1 is connected to the bottom of the impeller hub 3, and the generatrix of the impeller hub 3 is tangent to the outline of the local structure of the sphere; the impeller blade 2 is fixed on the impeller hub 3, and the impeller blade 2 includes a blade leading edge 4, a blade trailing edge 5 and a blade The radius of the rim 5 and the blade rim 6 gradually increases along the liquid flow direction, and the surface of the blade rim 6 is the side of the circular platform, and the generatrix of the side of the circular platform where the blade rim 6 is located is parallel to the generatrix of the impeller hub 3 . The present invention adopts the impeller with gradually changing outer diameter, and the outer diameter at the inlet of the impeller is smaller, so as to increase the liquid flow and the axial velocity of the organism passing through the pump, thereby reducing the collision probability between the organism and the leading edge 4 of the blade. In addition, the diameter of the impeller outlet is kept relatively large, which can ensure that the pump head and efficiency meet the requirements of the pumping station.
Owner:JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH +1

A forward and reverse switching device and a single-phase series motor

The invention discloses a forward and reverse switching device, wherein the carbon brush module can rotate clockwise and counterclockwise with respect to the chassis; The middle part of the reversingrod is rotatably connected to the chassis, the first end of the reversing rod is rotated by the carbon brush module, The second end of the commutation pull-out lever is in contact with and matched with the positive and negative swing lever of the positive and negative swing switching assembly, and the second end of the commutation pull-out lever can drive the positive and negative swing lever to swing, so that the positive and negative swing lever swings downward and backward, and the conductive loop of the motor lead connecting the plug in the positive and negative swing switching assembly ischanged, and the direction of the current is changed to realize commutation. Between that carbon brush module and the forward and reverse assembly, A forward and reverse assembly need not be providedat the air inlet, The invention effectively solves the contact ignition failure caused by the exposure of the contact point changing the current direction, the insufficient rigidity of the contact piece at the contact end, the plastic melting of the positioning base, the poor contact after the dust piles up for a long time, and improves the commutation stability in the bad working environment ofthe electric tool with high dust and strong vibration.
Owner:金华市聚杰电器有限公司

A well-balanced drone

The invention relates to an unmanned aerial vehicle with the good balance property. The unmanned aerial vehicle comprises a main body and four propellers and further comprises an adjusting mechanism and four rain-shielding mechanisms. The adjusting mechanism comprises an adjusting assembly, a first motor, a first transmission belt and two horizontal moving assemblies. Each horizontal moving assembly comprises a lead screw, a transmission wheel and a moving block. The adjusting assembly comprises a connecting block, two second motors, two driving wheels, two second transmission belts and two positioning rods. Each rain-shielding mechanism comprises a telescopic assembly and a rain-shielding plate. Each telescopic assembly comprises a cross rod, a driving unit, a telescopic frame, a connecting plate, two sliding blocks, two connecting rods, two transmission blocks and two limiting units. According to the unmanned aerial vehicle with the good balance property, the positions of express parcels are adjusted through the adjusting mechanism, the gravity center of the whole unmanned aerial vehicle is adjusted conveniently, thus the balance property of the unmanned aerial vehicle is higher;and express objects can be shielded through the rain-shielding mechanisms, the probability that the express objects are affected by rainwater is decreased, and thus the practicability of the unmannedaerial vehicle is higher.
Owner:浙江翔龙航空科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products