273results about How to "Strong magnetic force" patented technology

The invention relates to a discontinuous deformable surgical anastomosing magnetic ring. The discontinuous deformable surgical anastomosing magnetic ring is provided with two magnetic ring bodies, wherein the magnetic ring bodies are the same in structure and opposite in magnetic poles and are arranged in a piling up manner; each magnetic ring body comprises a plurality of arc-shaped magnetic ring blocks and a plurality of connecting pieces; the arc-shaped magnetic ring blocks are movably connected in an end-to-end manner by the connecting pieces respectively through rivets so as to form the magnetic ring bodies; a plurality of discontinuous anastomosing gaps are formed in the upper surfaces of the arc-shaped magnetic ring blocks of one magnetic ring body; a plurality of discontinuous anastomosing gaps are formed in the lower surfaces of the arc-shaped magnetic ring blocks of the other magnetic ring body; the connecting pieces of the two magnetic ring bodies arranged in a piling up manner are oppositely arranged; and the discontinuous anastomosing gaps of the two magnetic ring bodies are arranged in an abutting manner so as to form a discontinuous anastomosing port. The discontinuous deformable surgical anastomosing magnetic ring is light in weight and large in magnetic force, is deformable, and can be easily discharged from a human body, the stability and the involutory accuracy of the magnetic ring are enhanced, and the magnetic losses are reduced; and the discontinuous deformable surgical anastomosing magnetic ring has the characteristics of surgical discontinuous anastomosis, and pressure gradients can be locally formed at the anastomosing port further, so that the tissue healing is better, and the discontinuous deformable surgical anastomosing magnetic ring can be applied to the fields, such as PPH (Procedure for Prolapse and Hemorrhoids), rectal low-order anus-preserving operation, circumcision, colostomy, minimally invasive endoscopic resection and anastomosis, and the like.

A bone conduction earphone in which a large magnetic force can be generated and which can achieve improvement of sound quality and reduction of power consumption is provided. A vibration part 3 is provided to include a first magnet 32 and a second magnet 34, which coaxially secure a voice coil 2 on an inner surface 12a of an upper wall 12 of a cylinder-shaped frame 10 having an open lower part and are located in an inner side region and an outer side region of the voice coil 2, and a diaphragm 36 which connects the first magnet 32 and the second magnet 34 to the frame 10. A vibration transmission cushion 5 is provided to a lower part of the frame 10 in order to transmit a vibration of the voice coil 2 and the vibration part 3 to a human body.

The invention relates to a solenoid valve, in particular for a brake system of a motor vehicle, having an axially displaceably supported armature, on one end of which a valve sealing body is disposed and with the other end of which a pole core is associated, and having a compression spring acting in prestressed fashion between the pole core and the armature. It is provided that the compression spring is held in prestressed fashion in an axial passage of the armature, between a bolt, having the valve sealing body and held in a selectable position in the axial passage in force- and/or form-locking fashion, and a thrust piece, disposed such that it can be pushed out of the axial passage up to a stop and subjects the pole core to the prestressing force. The invention further relates to an armature for a solenoid valve. Finally, the invention relates to a method for producing an armature for a solenoid valve.

The magnetic rocker comprises the bracket with bed head and surface which sets mineral and water supply grooves, magnetic bearing mechanism along the direction of the bed with magnetic system set on the magnetic bearing mechanism. The introduction of compound force field solves the serious issue of mixture, increasing selection efficiency, improving selection index. It meets special requirement for magnetic mineral and non-magnetic mineral separation and nonmetal equipment requirement except iron ones.

A dog clutch includes: a first rotational member; a second rotational member; a clutch member; and a pressing mechanism. The clutch member includes a meshing portion meshing with the second rotational member, an engageable portion circumferentially engaging with an engaged portion provided in the first rotational member, and a cam surface configured to generate a cam thrust in a direction of a rotation axis by a relative rotation with respect to the first rotational member. When the clutch member moves, a depth of meshing with the second rotational member is deepened by the cam thrust, and then the engageable portion engages with the engaged portion, so that the clutch member receives a torque from the first rotational member.

The invention discloses a magnetic resistance type magnetic suspension device which relates to the field of magnetic suspension. The magnetic resistance type magnetic suspension device comprises a magnet bracket, wherein two magnet arrays are respectively fixed in the magnet bracket in opposite directions; a yoke is arranged between the two magnet arrays; the two magnet arrays are respectively fixed at both sides in the nonmagnetic-conduction magnet bracket; a magnetic force line loop is formed between the two magnet arrays; a yoke I is arranged between the two arrays; the yoke I is equal to the air gaps of the arrays at the two sides; and the yoke I is supported by the nonmagnetic-conduction magnet bracket. In the magnetic resistance type magnetic suspension device, the permanent magnets are arranged based on a certain form, thereby having large magnetic force; and the magnetic suspension device can work at ordinary temperature and does not need power supply in operation, thereby consuming little energy.

The invention discloses a weld joint nondestructive testing device for pipeline flaw detection. The device comprises a machine base, a liquid storage tank is formed in the middle of the top end of themachine base, a wastewater discharging mechanism is arranged in the liquid storage tank, and limiting and screening mechanisms are symmetrically arranged at the positions, corresponding to the two sides of the liquid storage tank, of the top end of the machine base, an efficient spraying mechanism is arranged at the top end, corresponding to the top of the liquid storage tank, of the machine base; each limiting and screening mechanism comprises an embedded groove, a supporting seat and a bearing wheel. The device is scientific and reasonable in structure and safe and convenient to use, the limiting and screening mechanisms are arranged, side guide rollers are pressed to descend through the self-weight of a pipeline, electrode plates at the bottom ends of the side guide rollers are attached to electrode plates at the top ends of bottom blocks, power is supplied to an electromagnet, and electromagnets are matched with magnetic strips, and sliding blocks are pushed to slide, meanwhile, the magnetic force of the electromagnets is increased according to the current conveying strength, and the pushing force of the electromagnets for pushing the magnetic strips is increased, therefore the moving effect of the sliding blocks is guaranteed.

The invention relates to a leakage-free fluid damper, which comprises a disc, a bottom disc flange which is arranged opposite to the disc, a hydraulic cylinder for making the circular disc and the bottom circular disc flange in leakage-free connection, a disc flange provided with a fifth aperture, and a cylinder with disc flanges at two open ends, wherein the upper end of the cylinder with the disc flanges at the two ends is provided with an upper end disc flange; and the lower end of the cylinder with the disc flange at the two ends is provided with a lower end disc flange. A piston in the damper is dragged to move by magnetic force; when the piston moves, the damping fluid flows through a small round through hole on the piston; and the energy is consumed when the damping fluid flows through the small round through hole on the piston, and an effect of controlling vibration is achieved. Therefore, a sealing piece is not used, and the damping fluid hardly leaks from the damper.

The invention relates to a method for harvesting microalgae with a magnetic separator. According to the method for harvesting the microalgae through a magnetic separation technology, as magnetic mediums are added into a microalgae culture solution for adsorbing microalgae cells, the magnetic mediums, namely microalgae compound, are rapidly and effectively captured in extremely short standing time by utilizing the magnetic separation action of a magnetic drum type magnetic separator, therefore, the microalgae cells and the culture solution are separated. The method for harvesting the microalgae is simple and convenient to operate, can be used for processing a large amount of feed liquid at the same time, the microalgae harvesting efficiency is high, the energy consumption is low, the energy is saved, and the method is easy to realize industrialization and lays a foundation for large-scale application.

Disclosed is a magnetic latching relay having an asymmetrical solenoid structure, the magnetic latching relay comprising an electromagnet portion, a contacting portion, and a drive portion; the electromagnet portion comprises a magnetic conductive component, a coil rack, and a coil; the drive portion comprises a movable iron core; further comprising two pieces of permanent magnet, the two magnets being respectively disposed on the two sides of a coil axis and being respectively adjacent to or in contact with the corresponding sides of the magnetic conductive component; and the two pieces of permanent magnets are within the movement range of the movable iron core in the axial direction of the coil, and are biased towards the moving direction of the movable iron core when a contact is in the closed state, such that the retaining force of the moving iron core is substantially the same in both closed and open states of contact. The present invention introduces biased permanent magnets into a relay having a solenoid electromagnet portion structure to make the relay a magnetic latching relay, for ensuring low heat dissipation while solving the problem of unbalanced action reset voltage of a solenoid electromagnet portion, thus improving product performance and operational reliability.

The invention provides a pipeline cleaner ball receiving device with a high gradient magnetic separator and a powder separation method; the ball receiving device is provided with a pipeline cleaner ball receiving barrel and the high gradient magnetic separator arranged on a gas pipeline in sequence, wherein the ball receiving barrel is connected with a main gas pipeline at the front end of a production valve; one end of a drainage pipe is connected with the ball receiving barrel, and the other end of the drainage pipe is connected with the rear end of the production valve; and at least one high gradient magnetic separator is arranged in the drainage pipe. In the invention, the sewage and large-particle diameter particles in the main gas pipeline can be cleaned through the ball receiving barrel, and simultaneously a high gradient magnetic field region is generated outside the high gradient magnetic separator; therefore, the paramagnetic particles with extremely weak magnetism even can be attracted by magnetic force and separated from carrying fluid, and the cleaning effect of the main gas pipeline is improved. The invention has high separation efficiency, convenience for maintenance and reliability for operation; moreover, the pipeline cleaner ball receiving device is suitable for powder separation while cleaning a natural gas pipeline with high flow speed and high pressure, and is capable of improving the natural gas quality and the purification effect.

The present invention provides a coarse coal powder permanent magnet dry type echelon magnetic extractor. The magnetic extractor includes a main body machine frame, a drive wheel machine frame equipped with a drive conveyer band wheel on the machine frame body and a drove wheel machine frame equipped with a drove conveyer band wheel on the machine frame body which are set on left side and right side of the main body machine frame respectively; an echelon magnetic source is set on top of a steel plate table of the main body machine frame, a magnetic material receiving hopper is set on bottom of the steel plate table of the main body machine frame; an upper conveyor belt part of a sorting material conveyer band drove by the drive conveyer band wheel and the drove conveyer band wheel locates on right upper part of the echelon magnetic source, a down bend returning band part locates on right down part of the echelon magnetic source; a vibrating feed hopper is set on the machine frame on upper of the drove conveyer band wheel, a non-magnetic receiving material hopper is set on the machine frame on down part of the drive conveyer band wheel; a poly-magnetic dielectric is set on upper of the sorting material conveyer band located on upper part of the echelon magnetic source which can move front and back, right and left.

The invention discloses a highly-integrated electromagnetic bistable-state MEMS relay and a manufacturing method of the highly-integrated electromagnetic bistable-state MEMS relay. The relay is an MEMS device which is characterized in that all relay systems for electromagnetic driving, elastic supporting, signal switching and the like and a permanent magnet are integrated on a single substrate. The manufacturing method includes the steps of conducting seed layer sputtering, photoresist spin coating and insulating layer forming on the substrate, forming a planar coil, a closed magnet yoke, a cantilever beam, an elastic platform, a magnet yoke platform, a movable contact, a fixed contact, a signal line and a supporting structure through the photoetching process, the electroplating process and the like, forming air gaps with the release method, and installing the permanent magnet on the elastic platform to form the complete relay. All the systems of the electromagnetic bistable-state MEMS relay are integrated on the single substrate with the MEMS technology, the integration level is improved, the size of the relay is reduced, power dissipation of the relay is reduced, work reliability of the relay is guaranteed, the manufacturing technology is simplified, and the highly-integrated electromagnetic bistable-state MEMS relay and the manufacturing method are suitable for industrialization volume production.

The invention discloses a nucleic acid extractor. The nucleic acid extractor comprises a case, a material tray, a plurality of suction heads, a liftable incubation mechanism, a magnetic adsorption assembly, a hanging basket and a guide rail, the material tray is provided with a plurality of detachable reagent plates, each reagent plate is provided with a sample tank, a lysis solution tank, a washing solution tank, an eluent tank, a waste solution tank and a reaction tank, and the reaction tanks is arranged at the rear ends of the reagent plate. The suction head is used for transferring a sample, a lysis solution, a washing solution, an eluent, a waste solution and nucleic acid, the incubation mechanism can heat the liquid in the reaction tank, and the magnetic forces of at least two magnets of the magnetic adsorption assembly are crossed, so that the magnetic force borne by the magnetic beads is increased, the magnetic adsorption time is shorter, and the effect is better. The hanging basket is ingenious in design structure, the centrifuge tubes can be taken out conveniently, and the centrifuge tubes are prevented from interfering with replacement of the reagent plate. The steps ofnucleic acid cracking, washing, elution, waste liquid treatment, nucleic acid transfer and the like are all completed in the extractor, so that the workload of personnel is reduced, and the nucleic acid extraction efficiency is improved.