70results about How to "Improve the stretching effect" patented technology

The invention discloses a stretchable display substrate and a display device. The stretchable display substrate comprises a substrate body, wherein the substrate body is divided into multiple pixel regions and non-pixel regions located between the pixel regions; each pixel region comprises a light-emitting device and a driving circuit connected with the light-emitting device; each non-pixel regioncomprises wiring regions and multiple porous regions located between the wiring regions; and each wiring region comprises a metal wire connected with the corresponding driving circuit, and each porous region is of a hollowed-out structure. Since the multiple porous regions are formed in each non-pixel region and the parts, in the porous regions, of the substrate body are of the hollowed-out structure, that is, no film layers are reserved in the porous regions, when the display substrate is stretched, the display substrate can be stretched in an arbitrary direction, and the stretching effect of the display substrate is improved.

The invention discloses a method for strengthening a concrete column by pre-stressed fiber cloth, using a tensioning device with a connecting-rod structure, which is capable of rapidly carrying out tensioning movement, and having the advantages of simple and convenient operation and high work efficiency. More particularly, the fiber cloth can obtain high enough tension and correspondingly, the concrete column can obtain high enough radial compressive pre-stress by applying smaller transverse tension, thereby achieving the purposes of strengthening the concrete column and preventing surface longitudinal cracks from being generated and expanded and reducing the requirements for the tensioning device and process. The tensioning device of the invention has the advantages that the stress of the fiber cloth is uniform and the tensioning effect is good during the tensioning process, and the damage of the tensioning operation to the original concrete structure is low; and the invention can greatly save the construction cost, reduce the construction risk and reduce the construction period. Therefore, the invention is of significant benefits to technology and economics in an overall manner.

The invention discloses an X8R-type capacitor ceramic material with a high dielectric constant, which comprises a substrate component and a doping component; the chemical molecular formula of the substrate component is aBaTiO3-bNa0.5Bi0.5TiO3; the chemical molecular formula of the doping component is cYb2O3-dMgO; the chemical expression of the X8R-type capacitor ceramic material with a high dielectric constant is aBaTiO3-bNa0.5Bi0.5TiO3-cYb2O3-dMgO, wherein a=0.88-0.92, b=0.08-0.12, c=0.01-0.015, and d=0.004-0.012. The X8R-type capacitor ceramic material obtained in the invention meets a wide operating temperature range, good temperature stability, a high dielectric constant, and environment friendship for X8R-type multilayer ceramic capacitors.

The invention discloses a horizontal tensioning method of a reinforcing concrete column by prestressed fiber cloth, fiber cloth is correspondingly arranged in the areas to be reinforced on the concrete column surface along the circumferential direction, the spaces between both ends of the fiber cloth and the concrete column surface are settled, and both ends of the fiber cloth are fixedly arranged; external surfaces horizontally across the both ends of the fiber cloth are respectively provided with horizontal bearing arms; the fiber cloth is pasted on the concrete column surface and fixed directly by moving the horizontal bearing arms and coating adhesive; and the invention alters the traditional longitudinal tensioning fiber cloth to horizontal tensioning fiber cloth, and can achieve equal tensioning effect with horizontal tension which is only 1 / 5 to 1 / 7 time of longitudinal tension, which reduces the demands of tensioning equipments and technique significantly. The invention has the advantages of simple equipment, and low manufacturing cost, is convenient for transportation and carrying, has good tensioning effect for the fiber cloth receives even stress in the tensioning process; and the tensioning operation has little damage to the structure of the original concrete, the manufacturing cost can be greatly saved, the project risk is reduced, the construction period is shortened, and comprehensive benefit of technology and economy is obvious.

The invention discloses a segmented type spine traction bed capable of adjusting the curvature in a personalized manner. The segmented type spine traction bed comprises a bed frame. The bed frame is sequentially provided with a head bed plate, a spine bottom plate and a leg bed plate. The spine bed plate is provided with an air cushion. Multiple air columns are evenly distributed below the air cushion. The air columns are driven by a power medium source to independently stretch and contract in the vertical direction so as to drive corresponding parts of the air cushion to ascend and descend. By adoption of the above structure, when the air columns on the spine bed plate independently stretch and contract, the corresponding parts of the air cushion are driven to ascend and descend so that the curvature of the air cushion and supporting force for different parts of the human body can be adjusted, the arching curvature of the corresponding parts, making contact with the different parts of the human body, of the air cushion can be adjusted according to the needs of the different parts of the human body, and therefore the spine of the human body can be effectively dragged and supported, and using is more comfortable and reliable. The traction bed is diverse in function, personalized adjustment can be conducted according to the curve degree of the human body, using is comfortable, and the traction curative effect is good.

The invention belongs to the field of steel wire production processes, and relates to a prestressed steel wire with a small relaxation rate and a manufacturing method of the prestressed steel wire. The prestressed steel wire is prepared from the chemical components in percentage by mass: 0.80-0.85% of C, 0.10-0.30% of Si, 0.60-0.90% of Mn, less than or equal to 0.025% of P, less than or equal to 0.025% of S, less than or equal to 0.10% of Ni, less than or equal to 0.35% of Cr, less than or equal to 0.2% of Cu, and less than or equal to 0.15% of V. The manufacturing method comprises the following steps: wire rod acceptance check, acid pickling and phosphorization, examining, drawing, semi-finished product examining and testing, stabilizing treatment, wire collection, and finished product examining and testing. By formulating the reasonable semi-finished product size, drawing process and stabilizing treatment process and meanwhile finding the appropriate stabilizing treatment temperature, the relaxation value of 1000 hours of the phi 7.50 mm prestressed steel wire reaches to be the optimum, it is examined that the relaxation rate is 0.93%, and thus the requirement that the relaxationrate is smaller than or equal to 2.5% is met.

The invention provides a textile stretching device based on eccentric rotation, and relates to the technical field of textile stretching. The textile stretching device based on eccentric rotation comprises a base, a supporting plate is fixedly installed at the top end of the left side of the base, a sliding groove is formed in the supporting plate, a mounting block is slidably connected with the interior of the sliding groove, sawteeth are arranged on the side, close to the center of the supporting plate, of the mounting block, and a gear is meshed between the sawteeth; a first rotating wheelis fixedly installed in the center of the gear, and a rotating shaft is rotationally connected to the interior of the mounting block. According to the textile stretching device based on eccentric rotation, silk yarn can be stretched repeatedly and intermittently, the stretching effect of the silk yarn is improved, the toughness of the silk yarn is improved to the maximum extent, the distance between limiting plates can be adjusted so that different amount of silk yarn can be wound on a stretching roller better, and the phenomenon of uneven stretching or even breakage caused by inclination of the silk yarn is avoided.

The invention provides a pre-anorectal anal lubricant filling table, which comprises a lying table surface, a distracting plate and a kneeling table. One side of the device body is arranged on a horizontal table surface. Two patient grips are symmetrically arranged at an upper end position of the lying table top. Two storage tables are symmetrically and fixedly installed on the two side walls of the lying table surface, and a controller is also arranged on the sidewall of the lying table surface at the upper side position of the storage table. A support plate is fixedly arrange on that front side mounting frame of the longitudinally support electric push rod. A lifting electric push rod is fixedly arrange on that top side of the moving base, and an anal lubricate device is fixedly arrangedon the upper side of the lifting electric push rod. The anal lubricating device is communicated with a lubricant electric syringe arranged on the bottom side through a drug delivery pipe. The anal lubricant filling operating table before the anorectal operation is provided with an arc-shaped structure at the support end of the support plate, which is favorable for conforming to the buttock structure and facilitates the support.

The present invention relates to a pesticide composition comprising gibberellin and brassinolide, and uses thereof, particularly uses in promoting of the plant fruit length increase, wherein the gibberellin and the brassinolide in the pesticide composition are used as the active components, a weight ratio of gibberellin to brassinolide is 1000:1-100:1, the plants are preferably banana, mango or Vigna unguiculata, and the fruit length increase is elongating the fruit. The invention further relates to a method for promoting the plant fruit length increase, and uses in reducing of gibberellin consumption.

A geogrid construction structure is used for laying tensioning construction of geogrid and further comprises a take-up device, a connection piece and a fixing piece. The geogrid comprises a fixed endand a free end. The fixing piece is arranged on a laid ground on one side of the free end of the geogrid, and the fixing piece and the free end are arranged in a spaced manner. The connection piece isdetachably connected with the take-up device and the geogrid. The take-up device comprises two side connection parts, one side connection part is connected with the fixing piece, and the other side connection part is connected with the connection piece. The fixed end is fixed to the laid ground. According to a construction method for the geogrid carrying out pulling and tensioning through the take-up device, the construction method has the beneficial effects that the pulling strength is large, the pulling effect is good, labor is saved, the construction speed is high, the working efficiency is improved, and materials are saved and other beneficial effects, and the construction method is wide in application range.

The invention discloses an adjustable high-pressure-expansion balloon bag which comprises a non-airtight balloon bag body and an expandable balloon. The non-airtight balloon bag body is provided with a first injection port. A first catheter communicating with the non-airtight balloon bag body is connected to the first injection port. The expandable balloon is provided with a second injection port. A second catheter communicating with the expandable balloon is connected to the second injection port. The non-airtight balloon bag body wraps the expandable balloon. The first catheter sleeves the second catheter. The non-airtight balloon bag body and the expandable balloon are jointly placed into a bone fracture part. The adjustable high-pressure-expansion balloon bag has the advantages that the non-airtight balloon bag body is combined with the expandable balloon, so that the expandable balloon is protected effectively and the surgery safety is improved; the control power of the non-airtight balloon bag body over the expansion of the expandable balloon is enhanced, and the non-airtight balloon bag body can be expanded thoroughly at the same time; and in addition, the surgery procedures are reduced, the surgery risks are reduced, and the surgery time is reduced.

A crystalline aliphatic polyester alone or a laminate thereof is subjected to intense stretching under appropriately set stretching conditions to provide a stretched product with remarkably improved physical properties as represented by impact resistance and gas-barrier property inclusive of hot water resistance. The thus-obtained stretched product of aliphatic polyester is provided with increased orientation degree at not only amorphous parts but also crystalline parts as represented by (a) remarkably higher crystal melting point compared with the unstretched product, (b) an increase in sub-dispersion peak temperature according to dynamic viscoelasticity measurement, or (c) an increase in orientation degree according to wide-angle X-ray diffractometry and an increase in main dispersion peak temperature according to dynamic viscoelasticity measurement.

The invention discloses a manufacturing method for a prestress small box girder. The prestress small box girder is divided into an open groove section located in the middle and anchoring sections located at the two ends, the manufacturing method comprises the following steps that 1, the open groove section is poured, open grooves used for arranging prestress ribs are reserved in a web plate of the open groove section, and two tensioning holes used for tensioning the prestress ribs are preset at intervals for a certain distance at the bottoms of the open grooves; 2, the prestress ribs penetrate through the open grooves reserved in the open groove section, the prestress ribs after penetrating are fixedly connected with steel bar cages of the anchoring sections at the two ends of the prestress small box girder, and the anchoring sections located at the two ends of the prestress small box girder are poured; 3, after the anchoring sections are poured and solidified, the prestress ribs aretensioned downwards by tensioning equipment through two transverse tensioning holes in the bottoms of the open grooves, and the tension value and the elongation value of the prestressed ribs are checked to meet the requirement; and 4, the open grooves in the open groove section are poured, then the third pouring is finished, the tensioning equipment is disassembled after the open grooves are solidified, and then the manufacturing of the whole prestress small box girder is completed. According to the manufacturing method for the prestress small box girder, the grouting in the prestressed tension of the small box girder is denser, and meanwhile, the utilization rate of the prestress ribs is improved.

The invention discloses a graphene cushion for children, and relates to the technical field of cushions for children. The graphene cushion particularly comprises a cushion, a laying layer and a cushion back. The cushion comprises the laying layer, an adhesion layer, an elastic layer, a water absorption layer, a bottom cushion layer and the cushion back, seal edges wrap the edges of the cushion, blocks are spliced with one another to form the laying layer, a large ring is embedded in the middle of a surface of the cushion back, a small ring is connected with the end, which is far away from thelarge ring, of each connecting pipe, action rubber pipes are connected with the upper side and the lower side of the large ring, and mounting grooves are equidistantly formed in the outer walls of theaction rubber pipes. The graphene cushion for the children has the advantages that the insides of the large ring, the small rings, the connecting pipes and the action rubber pipes are in expansion states under inflation effects, the large ring, the small rings, the connecting pipes and the action rubber pipes have structural strength on the premise that the internal air pressures of the large ring, the small rings, the connecting pipes and the action rubber pipes are increased, and the magnitude of the strength has direct relations with the quantity of injected gas.

The present invention discloses a spine drawing bed control method. The middle portion of a bed body is provided with a plurality of electric push rods arranged in an array mode and a drawing pad, thedrawing pad is connected with the top portion of the electric push rods, and the spine drawing bed further comprises a master controller and a plurality of pressure sensors connected between the electric push rods and the drawing pad and configured to detect bearing pressures. The control method comprises the steps of: setting pressure values of the bearing pressures of the electric push rods atdifferent time frames in the master controller; controlling the expansion of the electric push rods by the master controller, and feeding back the bearing pressures detected in real time by the pressure sensors on the electric push rods to the master controller; and regulating the expansion lengths of the corresponding electric push rods by the master controller according to the bearing pressuresdetected by the pressure sensors until the pressure values detected by the pressure sensors meet the set pressure values at the corresponding time frames. The spine drawing bed control method is diversified in function, can perform individuation regulation according to the human body curve, and is comfortable in usage and good in drawing curative effect.

The invention relates to a front-mounted broadened aluminum profile extruding die. The front-mounted broadened aluminum profile extruding die comprises a round extruding cylinder, a broadening die and a forming die, wherein the broadening die is arranged between the forming die and the round extruding cylinder, and the middle part of a die cavity of the broadening die is narrower than the left and right end parts of the die cavity by 25-40%; an extending angle formed by an upper conical surface of the die cavity and the axis is 18-25 degrees; a pressure relief angle formed by a lower conical surface of the die cavity and the axis is 10-20 degrees. According to the front-mounted broadened aluminum profile extruding die, a flat extruding cylinder is saved, the broadening effect of an ingot blank is good during the extruding, and the quality of a profile is improved; by utilizing the structure, the extrusion force can be reduced, the service life of the die can be prolonged, and the production cost can be lowered.

The invention discloses a segmented spinal drafting bed control structure with personalized curvature adjustment, including a bed frame. A head plate, and spinal column drafting and leg plates are sequentially arranged on that bed frame, the spinal column drafting plate is provided with a plurality of electric pushrods arranged in an array and a drafting pad, each electric push rod is sleeved in aguide hole corresponding to the spinal column draft plate along the vertical direction, the drafting pad is connected to the top of the electric push rods. The segmented spinal drafting bed control structure is characterized in that: the control structure comprises a main controller and a plurality of pressure sensors respectively connected between the top of each electric push rod and the drafting pad and used for detecting the bearing pressure. Each pressure sensor is respectively connected with the master controller through a wireless communication module, and the master controller controls the length of each electric push rod according to the bearing pressure value detected by each pressure sensor. The control structure of the invention has diversified functions, and can be individually adjusted according to the curvature of the human body, and has the advantages of comfortable use and good drafting curative effect.

The invention discloses a hanging basket guiding device used for painting the inner wall of a hyperbolic-type cooling tower and a painting method. The device comprises a hanging basket (1), a bearing rope (2), a structural steel support (3) and guiding assemblies. The two ends of the bearing rope (2) are connected with the structural steel support (3) and the hanging basket (1) respectively. Each guiding assembly comprises a guide rail rope (5), a chain hoist, continuous wall ribs (7) and inner thread casing pipes (8). The continuous wall ribs (7) are screwed with the inner thread casing pipes (8). The guide rail ropes (5) are sleeved with lantern rings of the continuous wall ribs (7). The head ends of the guide rail ropes (5) are fixed to a coping ring beam (4). The tail ends of the guide rail ropes (5) are tensioned by the chain hoists. The method is characterized in that during painting, a cant hook is used for hooking the guide rail ropes (5) and drawing the guide rail ropes (5) back so that the hanging basket (1) can get close to the inner wall of the cooling tower (13). According to the hanging basket guiding device used for painting the inner wall of the hyperbolic-type cooling tower and the painting method, the painting process is fast and convenient to conduct, labor is saved, and consumables are reduced.

The invention discloses a simple tensioning device for a membrane structure. The simple tensioning device for the membrane structure comprises a supporting frame, a tensioning rod, a clip, a lifting rod and a load-bearing box; not less than one tensioning rod is arranged on the supporting frame; the clip is arranged at the tail end of the tensioning rod; the lifting rod is arranged at the middle part of the tensioning rod; and the load-bearing box is arranged at the tail end of the lifting rod. The simple tensioning device for the membrane structure has the advantages of simple structure, convenient operation, low cost and convenient maintenance.

The invention relates to the technical field of medical instruments, in particular to a distraction device for minimally invasive surgery. The distraction device for the minimally invasive surgery comprises a first rack, a first-direction distraction mechanism and second-direction distraction mechanisms, wherein the first-direction distraction mechanism is vertically installed on the first rack and can move or be locked on the first rack in the first direction perpendicular to the arrangement direction of the first rack; the second direction mechanisms are vertically mounted on the first rackand can move or be locked on the first rack along a second direction parallel to the arrangement direction of the first rack; and two second-direction distraction mechanisms are symmetrically arrangedalong the first-direction distraction mechanism. According to the distraction device for the minimally invasive surgery, the first-direction distraction mechanism and the second-direction distractionmechanisms are convenient to adjust, the adjusting process is stable, the distraction effect on a minimally invasive incision is good, only a local structure can be replaced after local damage, and materials are saved.

The invention discloses a melt-blow nozzle and a fiber preparation device. The melt-blow nozzle comprises a first air flow channel used for jetting a first air flow, a circular spinneret hole which sleeves the first air flow channel and used for jetting spinning strips and a second air flow channel located on the outer side of the circular spinneret hole and used for jetting a second air flow, wherein the first air flow and the second air flow are both used for stretching the spinning strips. In the melt-blow nozzle, the first air flow forms an air flow field in the spinning strips, the secondair flow applies action outside the spinning strips, that is, the first air flow and the second air flow jointly stretch the spinning strips from the inside and the outside of the spinning strips, compared with the prior art that only the air flow outside the spinning strips is adopted to stretch the spinning strips, the stretching effect is effectively improved, and accordingly the diameter of melt-blow fiber is reduced. Only the first air flow channel needs to be arranged on the basis of the original melt-blow nozzle, no other changes need to make, the machining difficulty of the melt-blownozzle is effectively reduced, and the cost is reduced.

The invention provides a tension control device for a padder. The tension control device comprises a drive roller wheel, a driving roller wheel, a batching shaft, a rotating shaft, a fixing groove, a fixing nail, a reducer and a motor. The driven roller wheel and the driving roller wheel are vertically arranged. One side of the driven roller wheel and the driving roller wheel is provided with the rotating shaft. The batching shaft is arranged on the outer side of the rotating shaft and provided with the fixing groove. The fixing nail is arranged in the fixing groove. Dyeing cloth is wound around the batching shaft and fixed to the fixing nail. The rotating shaft is connected with the reducer through a triangular belt. The reducer is connected with the motor through a triangular belt. According to the tension control device, the fixing groove is formed in the batching shaft, the fixing nail is fixed in the fixing groove, the dyeing cloth is wound around the batching shaft to be evenly fixed to the fixing nail, the stretching effect of the dyeing cloth can be improved greatly in the stretching process, and meanwhile the overall tie-dyeing quality of the dyeing cloth is improved.

The invention provides a fur widening device, and belongs to the technical field of fur machining equipment. The fur widening device comprises a support, and a widening mechanism is arranged at one end of the support; the widening mechanism comprises a fixed plate and a movable plate which are sequentially arranged on the support; the fixed plate is fixed to one end of the support, the movable plate is arranged on the support in a sliding manner, a first widening plate is fixed to the fixed plate, a second widening plate is fixed to the movable plate, and the first widening plate is parallel to the second widening plate; a power mechanism is arranged at the other end of the support and comprises a motor; the motor drives a rotating shaft; and the rotating shaft is connected with one end of a transmission rod, and the other end of the transmission rod is connected with the movable plate. The fur widening device is simple in structure, convenient to manufacture and low in manufacturing cost; and when a fur cylinder is widened, the time and labor are saved, and the widening effect is good.

The invention relates to the technical field of wet gluten production, and in particular relates to a wet gluten production method and a gluten beating and winding all-in-one machine thereof; and the wet gluten production method comprises the production steps of dough kneading, dough standing, dough washing, forming, cooking and gluten cutting and shaping. According to the invention, through a placement module and a gluten beating module of the gluten beating and winding all-in-one machine, washed gluten can be placed on the placement module; then gluten dough is beaten through the gluten beating module; in this way, the toughness of the gluten dough is improved; wet gluten is more chewy; the taste of the gluten is easily improved; furthermore, the gluten is difficultly broken in subsequent processing; processing of the gluten is easily executed; an output end of a first motor is fixedly connected with a first gear in meshing transmission with a gear ring in a sleeving mode; and during processing, the first motor can enable a rolling cylinder to rotate, so that the gluten dough can be turned over when being beaten, all parts of the gluten dough can be beaten conveniently, the gluten beating effect can be easily improved, and the use is convenient.

The invention provides a prestressed fiber cloth tensioning system. The prestressed fiber cloth tensioning system comprises a tensioning end anchor and two fixed end anchors; the tensioning end anchorcomprises a tensioning bottom plate, a tensioning press plate, an upper top plate, a screw rod and a jack; the tensioning bottom plate is fixed on concrete through a rivet; an arch-shaped arc part I,which protrudes upwards, is arranged on the upper end surface of the tensioning bottom plate; two arch-shaped arc parts II, which protrude downwards, are arranged on the lower end surface of the tensioning press plate; the lower end of the jack abuts on the upper end surface of the tensioning press plate; the screw rod is connected with the tensioning bottom plate through a thread; the screw rodpenetrates through a through hole to be in sliding fit with the upper top plate and the tensioning press plate; locking nuts are connected to one parts, above both the upper top plate and the tensioning press plate, of the screw rod through threads; the fixed end anchors comprise fixed bottom plates, fixed press plates and winding drums; the fixed bottom plates are fixed on the concrete through rivets; and the fixed press plates are connected to the fixed bottom plates through bolts. The prestressed fiber cloth tensioning system is simply structured, convenient to mount and suitable for reinforcing large-sized concrete structures such as bridges, piers and so on.

The invention discloses an automatic control method for prestressed intelligent tensioning. The automatic control method comprises the steps of installing a tensioning device; construction of tensioning prestressed tendons by the tensioning device; construction of locking the prestressed tendons by the tensioning device and intelligent controlling over tensioning construction by a controller. Theautomatic control method has the beneficial effects that a tensioning telescopic part of a bidirectional jack works first, the prestressed tendons are tensioned to a predetermined stress value, and then a jacking telescopic part works to push a reverse pressing plate to push and press a working jacket, so that a working anchor clamps the prestressed tendons, sliding of the prestressed tendons canbe reduced; compared with a traditional tensioning system, the automatic control method can reduce stress loss, avoid excessive tensioning, better control the tensioning process and improve the tensioning effect, and realize intelligent tensioning monitoring and control by combining with the controller; and intelligence and convenience are achieved, and control accuracy is high.

The invention relates to the technical field of geotechnical engineering, in particular to a protection structure for a high and steep slope and a construction method thereof. The protection structurecomprises at least two truss steel beams which are arranged along the slope surface of the side slope at intervals, the truss steel beams are connected with prestresse anchoring devices, and one ends, far away from the truss steel beams, of the prestress anchoring devices are anchored into the side slope. According to the protection structure for the high and steep slope, the truss steel beams are connected and fixed to the slope surface of the slope through the prestress anchoring devices so as to achieve the purpose of protecting the high and steep slope, the truss steel beams can be assembled through single rod pieces on site, and therefore the problems that concrete is difficult to transport and the cast-in-situ tamping effect is poor are solved, and the the quality is reliable; and compared with concrete connecting beams, transportation is greatly facilitated, and the construction cost is reduced, so that the anti-seismic property is better.

The invention discloses a self-screening thrombectomy stent with strong capture force, and relates to the field of medical instruments. The self-screening thrombectomy stent comprises a far-end gathering screen, an upper half stent main body, a stent middle section and a lower half stent main body, wherein the upper half stent main body, the stent middle section and the lower half stent main bodyare each of a net-cylinder-shaped structure; the diameter of the cross section of the stent middle section is smaller than the diameters of the cross sections of the upper half stent main body and thelower half stent main body; one end of the stent middle section is connected with the upper half stent main body; the other end of the stent middle section is connected with the lower half stent mainbody; the far-end gathering screen is arranged at the far end of a thrombectomy stent body and is connected with the upper half stent main body; and the far-end gathering screen comprises a pluralityof gathering petals, and the gathering petals are gathered from the periphery to the inside. The self-screening thrombectomy stent is reasonable in design and high in practicability, the risk that thrombus is lost in a process of being pulled out from the body is eliminated, and the thrombus capture capacity is improved.