Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

227 results about "Neodymium magnet" patented technology

A neodymium magnet (also known as NdFeB, NIB or Neo magnet), the most widely used type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron and boron to form the Nd₂Fe₁₄B tetragonal crystalline structure. Developed independently in 1982 by General Motors and Sumitomo Special Metals, neodymium magnets are the strongest type of permanent magnet commercially available. Due to different manufacturing processes, they are also divided into two subcategories, namely sintered NdFeB magnets and bonded NdFeB magnets. They have replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives and magnetic fasteners.

Singing Bowl Magnetic Attachment

The present invention in some embodiments thereof, describes a magnet attachment system for singing bowls in the field of musical instruments. This magnet attachment system utilizes high-powered magnets strategically placed inside and at the bottom exterior of the singing bowl. The magnetic system securely adheres the bowl to a steel plate, offering improved stability, enhanced playability, and increased resonance through reduced surface contact. Further, the magnetized bowls can be easily handheld, connected to one another using a magnetic rod, or assembled on a bowl tree for simultaneous play. The system describes neodymium magnets, double adhesive pads for secure fixation of magnets, a metallic plate (preferably stainless steel) for support, and non-slip high-density foam or pad for cushioning the support plate and provide grip.
Owner:TRELLERT CHASE MICHAEL

Measurement apparatus for braking distance of mine fall arrester, and measurement method therefor

A measurement apparatus for the braking distance of a mine fall arrester, the measurement apparatus comprising a housing (1), wherein a display screen (2) is provided on the housing (1); an optical observation window (3), indicator lights (5), functional operation buttons (6), a mode switch (7), a memory card slot (8), and a data transmission interface (9) are provided on the front face of the housing (1); a cubic neodymium magnet (10) is provided on the back face of the housing (1); an optical glass column (11), a laser ranging module (13), a measurement LED fill light module (14), an imaging module (15), and an outwardly-flared metal shielding cover (16) are provided at the lower portion of the housing (1); and a central control module (17), a GPS module (18), an active ceramic GPS antenna (19), a wireless receiver module (20), a wireless transmitter module (21), a 315MHz control module (22), a 433MHz communication output module (23), a nine-axis accelerometer and gyroscope module (24), a power supply module, and a loudspeaker module (26) are provided in the housing (1). Further provided is a measurement method for the braking distance of a mine fall arrester.
Owner:ZHONGJIAN GROUP GONGXIN SECURITY TECHNOLOGY CO LTD

Pressure-dividing type extensible medical elastic cap

InactiveCN121313394AHead bandagesNeck bandagesIntracranial surgeryNeodymium magnet
The invention discloses a partial pressure type extensible medical elastic cap, and relates to the technical field of neurosurgery postoperative nursing instruments, the partial pressure type extensible medical elastic cap comprises a partition debugging assembly, the outer surface of the partition debugging assembly is provided with a connecting assembly, and the partition debugging assembly comprises an elastic cap body. According to the partial pressure type extensible medical elastic cap, in order to improve the practicability of the elastic cap for head pressure bandaging after the craniocerebral operation, the main body width of the elastic cap body is increased to 10 mm, the gradient pressure weaving technology is adopted, the central area is formed by processing a high-elasticity weaving layer, the low-pressure area is formed by processing a low-elasticity weaving layer, the cutting feeling can be reduced, and the elastic cap is more practical. The elastic cap can be prevented from being in contact with auricles, opening and closing of the elastic cap can be achieved through the combination of the two corresponding neodymium magnets, the purpose of locally pressurizing the head of a patient can be achieved by pressurizing the air bag, and the elastic cap is convenient to use. The problem that a traditional medical elastic cap in the prior art is simple in structure and low in practicability is solved.
Owner:KUNSHAN FIRST PEOPLES HOSPITAL

Stud finder

An advanced multi-functional construction tool combines the capabilities of a magnetic stud finder, torpedo level, laser level (line or cross-line), tape measure, marking implement, and LED flashlight into one compact and versatile device. Designed to meet the varied needs of both professional contractors and DIY enthusiasts, this tool facilitates accurate stud detection, surface leveling, distance measurement, area illumination, and precise marking for layout tasks. Key features include an integrated line laser for precise alignment, Neodymium magnets for magnetic adherence to studs, orthogonal float levels for multi-directional leveling, and a retractable tape measure. Additionally, the tool boasts a retractable push pin mechanism for temporary wall attachment and hands-free operation, alongside a conveniently housed marking implement for easy access. This integration of multiple essential tools into a single unit not only enhances functionality but also significantly improves efficiency and precision in a wide array of construction and home improvement tasks.
Owner:SCHNEIDER TREVOR

An X-axis sliding mechanism of an electromagnet slide rack

The invention discloses an X-axis sliding mechanism of an electromagnet glass slide rack, comprising a glass slide rack platform integrated part composed of a connecting plate and a double-arm bracket, the lower surface of the connecting plate is connected to the X-axis bottom plate through an X-axis slide rail assembly, a push block is provided on the connecting plate, and a displacement sensor and a limit device are respectively provided on the front and rear sides of the X-axis slide rail assembly; a support plate is provided on the left forearm of the double-arm bracket, an electromagnet seat is installed on the right forearm of the double-arm bracket, an electromagnet coil, a small magnet block and a neodymium magnet block are embedded on the electromagnet seat, the glass slide rack is horizontally inserted in the double-arm bracket, and the glass slide rack is supported on the support plate and the right side block. The invention realizes the preliminary positioning of the glass slide rack by the small magnet block and the neodymium magnet block, realizes the complete fixation of the glass slide rack by the electromagnet coil, so that the glass slide rack and the glass slide rack platform integrated part temporarily form a whole, which not only ensures the stability of the glass slide plane during scanning and improves the scanning quality, but also has novel conception, compact structure, reliable performance and easy operation.
Owner:SUZHOU FENGTAI MEDICAL TECHNOLOGY CO LTD

Split type sand table platform identification vehicle

The utility model relates to the technical field of sand table platforms, in particular to a split type sand table platform identification vehicle which comprises a plurality of map blocks, a plurality of cover plates, a vehicle bottom layer shell, a vehicle middle layer shell and a vehicle top layer shell, two neodymium magnets are installed on the periphery of each map block, and four neodymium magnets are installed at the top and the bottom of each map block. The adjacent map blocks are connected in a suction mode, the cover plates are connected with the corresponding map blocks in a suction mode and located above the corresponding map blocks, the vehicle middle layer shell is connected with the vehicle bottom layer shell and located above the vehicle bottom layer shell, and the vehicle top layer shell is connected with the vehicle middle layer shell and located above the vehicle middle layer shell. The problems that the size of a sand table scene is fixed and cannot be changed, and the use function is single are solved.
Owner:HUAIAN SITENG INFORMATION TECH CO LTD

Magnetized tool cover sleeve

A tool cover sleeve that can be non-removably integrated or removably attached to attach various tools that includes magnets inside of its cavity to magnetically attract objects to the tool with the sleeve on it. The sleeve is a uniform sleeve that includes a narrower top end and a wider lower end and has room to hold one or more magnets. One or more neodymium magnets can be included or stacked over each other inside of the sleeve to attract other objects to the tool, such as a hammer or other tool, to attract nearby nails or other tools that include metal and can form a magnetic attraction to the one or more magnets held within the removable tool cover sleeve.
Owner:DAVIS COLE D +1

Magnetic attraction device

To provide a magnetic attraction device that can demonstrate its intrinsic attraction force even when the surface shape of an object to be attracted is not flat.SOLUTION: A magnetic attraction device 180 includes a neodymium magnet 111 and a yoke 181 that holds the neodymium magnet 111. The yoke 181 has a back yoke unit 183 that attracts the neodymium magnet 111 and an outer peripheral yoke unit 184 that is formed integrally with the back yoke unit 183 and surrounds the neodymium magnet 111. An attraction surface 184a of the outer peripheral yoke unit 184 includes a first curved surface.SELECTED DRAWING: Figure 1
Owner:SOFUTEMU +2

Embedded self-fixing anti-theft isolation type permanent magnet shielding directional magnetic conduction induction button

The utility model provides an embedded self-fixing anti-theft isolation type permanent magnet shielding directional magnetic conduction induction button. The button comprises a button fixing shell and a movable inner core. The movable inner core is installed on the button fixing shell through an elastic assembly in a rebounding mode. A shielding piece is arranged on the inner wall of the lower cavity of the movable inner core; a neodymium magnet is installed in the center of a lower cavity of the movable inner core through the shielding piece in an embedded mode. The button fixing shell is provided with embedded reverse teeth; the button fixing shell is mounted on the control panel through the embedded reverse teeth; a vacuum bidirectional magnetic switch is arranged below the embedded reverse teeth; and after a magnetic field generated by the neodymium magnet is isolated by the shielding piece, the neodymium magnet attracts the vacuum bidirectional magnetic switch in a directional manner to enable the vacuum bidirectional magnetic switch to act. According to the utility model, the direction of the magnetic field generated by the neodymium magnet can be accurately controlled, the accuracy and reliability of button operation are ensured, and the possible interference of disordered diffusion of the magnetic field on peripheral electronic components is avoided.
Owner:GUANGZOU BAIYUN PUMP GROUP

Rotary-rail separate-guide anti-winding type surgical precise coiling device

The invention relates to a rotary rail separated guide anti-winding type surgical precise coiling device, and belongs to the technical field of medical machinery, the rotary rail separated guide anti-winding type surgical precise coiling device comprises a protective sleeve, the outer wall of the protective sleeve is fixedly connected with a handle block, the inner wall of the protective sleeve is rotatably connected with a rotary shaft, and the outer wall of the rotary shaft is connected with a spool in a clamping manner; a suture line body is wound on the outer wall of the bobbin, and the inner wall of the protective sleeve is fixedly connected with a traction roller. By means of the ratchet wheel disc and the pawl, the thread spool can only rotate in one direction, springback and winding are prevented, by means of the annular neodymium magnet and the fixing buckle, when the sewing head end does not need to be used, a thread end is placed in a magnetic attraction area of the fixing buckle and the annular neodymium magnet to be fixed, the thread end is automatically attracted and locked, knotting is not needed, and the sewing efficiency is improved. The thread reel is detachably connected with the rotating shaft, so that the thread winder is high in compatibility, adapts to various sewing threads such as silk threads, single arbor threads and barbed threads, and supports repeated sterilization and use.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV

Auxiliary positioning device for machining mounting holes of rectangular waveguide flanges

The present invention discloses an auxiliary positioning device for machining installation holes of a rectangular waveguide flange, which includes a cavity, a push rod, a positioning slider, a spring, a knob, a neodymium magnet block, and a drill plate. After assembly, rotating the knob can make the positioning slider uniformly expand and contract in the cavity. When it contacts the waveguide inner cavity simultaneously, it ensures that the center of the waveguide inner cavity coincides with the center of the drill plate, realizing the machining positioning of the flange installation holes. When the knob is rotated in the reverse direction, the positioning slider contracts under the action of the spring and the neodymium magnet block, quickly completing the separation of the workpiece and the positioning device, and improving the machining efficiency. The present invention is small in size, simple to operate, accurate in positioning, good in applicability, and reusable.
Owner:THE 724TH RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING CORP LTD

Synchronous electric rotating machine

To easily assemble a magnet body and a yoke while counteracting a repulsive force, and to stably integrate the magnet body and the yoke by preventing magnetic saturation.SOLUTION: In a rotor in which magnet bodies 2 are arranged at equal angular intervals via a sector-shaped yoke 3 with the same poles facing each other, neodymium magnets with a magnetic flux density B of 150 mT≤B are used as magnet bodies 2, and the central angle θ of yoke 3 is set to 20°<θ<40°. When the side of magnet body 2 is viewed from a direction perpendicular to it, the peripheral edge of the side of yoke 3 protrudes from the peripheral edge of the side of magnet body 2 to join the side of magnet body 2 and the side of yoke 3. The relationship between the protruding dimension Ea of yoke 3 in the axial direction, the protruding dimension Eb on the other axial side, and the minimum gap G between adjacent magnet bodies 2 are set to 0.5 mm≤Ea≤5 mm, 0.5 mm≤Eb≤5 mm, and 0.5 mm≤G≤5 mm.SELECTED DRAWING: Figure 6
Owner:村井启一

Piano cover plate clamping device

The invention discloses a piano cover plate clamping device, and relates to the technical field of pianos, the piano cover plate clamping device comprises a lower mounting plate and a matched upper mounting plate, the two sides of the lower mounting plate and the upper mounting plate are vertically folded to form corner plates, the middle openings of the corner plates on the two sides of the lower mounting plate and the upper mounting plate are provided with long-strip grooves, and threaded columns movably penetrate through the long-strip grooves; a plurality of screw barrels are fixed to the middle of the lower mounting plate in a penetrating mode, and the two ends of the threaded column are sleeved with threaded rings in a threaded mode; a threaded edge is integrally formed on one side of the threaded ring, neodymium magnets are movably connected to the two ends of the threaded column in a sleeving mode, and a separation ring is fixedly arranged on one side of each neodymium magnet. The rotating ball can rotate between the two arc-shaped covers with the axial direction of the circle center bolt as the center, so that the long strip plate rotates with the axial direction of the circle center bolt as the center, the lower mounting plate and the upper mounting plate turn over at the two ends of the long strip plate, and the two turning centers greatly increase the turning mode of the cover plate; and after the cover plate is overturned, the offset distance of the gravity center position is greatly increased.
Owner:ZIBO NORMAL COLLEGE

Indoor noise monitoring equipment convenient to place

The utility model discloses an indoor noise monitoring device convenient to place, which comprises a monitoring machine body, an input microphone is fixedly arranged at the upper end of the monitoring machine body, a storage groove is formed in the rear surface of the monitoring machine body, a multifunctional placing structure is fixedly arranged in the storage groove, and the multifunctional placing structure is arranged in the storage groove. A fixed iron sheet is fixedly mounted on the lower surface of the monitoring machine body, and a display screen is fixedly mounted on the front surface of the monitoring machine body. The indoor noise monitoring equipment convenient to place can be manually held by hands for monitoring, can be adsorbed on an iron metal surface through a neodymium magnet for monitoring, and can be adsorbed on a smooth desktop through a T-shaped clamping block for monitoring; and under the condition that the placing block is fixed, the telescopic rod extends to approach a noise source for monitoring, and the position angle of the input microphone can be properly adjusted through the damping rotating shaft so as to adapt to various positions required by placing the noise monitoring equipment.
Owner:HAINAN KESHENG CONSTR ENG QUALITY INSPECTION CO LTD

Ozone gas-ejecting toothbrush device

To provide an ozone gas-ejecting toothbrush device.SOLUTION: An ozone gas-ejecting toothbrush device comprises: an ozone generator 300 incorporating a quartz pipe-type discharge tube with two types of metals of Cr+W, Ti+W, Cr+Mo or Ti+Mo vapor-deposited and coated on a surface and / or an inner surface of a quartz pipe, and further coated with CuB by melt baking, the quartz pipe-type discharge tube including an ejector on an air intake side of the quartz pipe, and a magnet arrangement chamber for a neodymium magnet 310 on a discharge side; and an ultrasonic toothbrush that introduces ozone gas from an ozone generator into the interior of the toothbrush and ejects it from an ejection hole 204 provided in a head 104 of the toothbrush, and that incorporates an ultrasonic vibrator in a neck.SELECTED DRAWING: Figure 1
Owner:原田 哲男 +2

Portable aroma diffuser

This utility model discloses a portable aroma diffuser, comprising a base for power supply and an aroma diffuser cartridge electrically connected to and mounted on the base. The base has a lower circuit board on its top, with electrically connected conductive posts. The aroma diffuser cartridge has an upper circuit board at its bottom, in contact with the conductive posts and electrically connected. The aroma diffuser cartridge has a top cover with a smoke outlet. A hollow heating tube is vertically mounted in the middle of the cartridge, electrically connected to the upper circuit board. The top of the heating tube is connected to and communicates with the smoke outlet, and the bottom of the heating tube has a smoke outlet hole. A sponge containing aroma diffuser liquid is fitted around the heating tube. This utility model, through its base, aroma diffuser cartridge, and neodymium magnet, allows the aroma diffuser cartridge and base to be quickly and easily attracted together by the neodymium magnet when connected, facilitating assembly and disassembly and ensuring portability.
Owner:SHENZHEN YUEMITE TECH CO LTD

Metal powder processing device for a metal cutting machine

The application discloses a metal powder processing device for a metal cutting machine, which comprises a separation box, a heating box, a feeding box, a partition plate, an inclined plate, a magnetic separation element, a fixing rod, a neodymium magnet, a fixing cylinder, a fixing steel wire, a servo motor and an exhaust pipe; the top of the separation box is provided with the feeding box in a matched mode; the side surface of the separation box is embedded with the heating box; the bottom of the inner wall of the separation box is fixed with the partition plate and two inclined plates; the bottom and the top of the separation box are respectively embedded with the exhaust pipe; and the back surface of the separation box is fixed with the servo motor through a supporting rod. The neodymium magnet is eccentrically arranged in the interior of the metal cylinder; the magnetic force on the surface of the metal cylinder is inconsistent; the metal powder and dust can be separated on the left side where the magnetic force is the strongest; the metal powder and dust can be completely separated; the metal powder is rotated to the right side where the magnetic force gradually decreases; when the gravity of the metal powder is greater than the magnetic force, the metal powder automatically falls off the surface of the metal cylinder; and the device has the advantages of good magnetic separation effect.
Owner:RUINING HIGH-TECH MATERIALS (GANZHOU) CO LTD

Fish catching reminder

The invention discloses a fishing reminder which comprises a reminding assembly and a circuit board. The reminding assembly comprises a fixing base, a supporting base and a fishing line jacking column. The supporting base is fixed to one side of the fixing base, and a wire groove is formed between the two opposite side walls of the supporting base. A neodymium magnet is fixed in an inner cavity of the fishing line jacking column, and one end is slidably connected in the supporting seat; the fishing line penetrates through the line groove and abuts against one end of the fishing line jacking column. A controller, a plurality of Hall switches, a plurality of multi-light-color LED lamps and a buzzer are integrated on the circuit board, and the circuit board is fixed in the fixed seat; and when the fishing line support pillar slides to enable the neodymium magnet to be in magnetic contact with the Hall switch, a magnetic signal is fed back to the controller to enable the LED lamp to emit light and enable the buzzer to make a sound alarm. The fishing line jacking column slides along the supporting seat, and after the neodymium magnet is magnetically connected with the Hall switches at different positions, the LED lamps of different colors can be controlled to emit light; after any LED lamp emits light, the buzzer can buzz, and fish catching reminding is achieved in a sound-light alarm mode.
Owner:青白江区牛懒人商贸部

Ozone gas ejection toothbrush device

To provide an ozone gas ejection toothbrush device. 【Solution means】Two kinds of metals, Cr + W or Ti + W or Cr + Mo or Ti + Mo, are vapor deposition coated on the surface and / or inner surface of a quartz pipe, and further CuB is melt baked and coated. An ozone generator 300 incorporating a quartz pipe type discharge tube provided with an ejector on the air suction side of the quartz pipe and a magnet arrangement chamber of a neodymium magnet 310 on the outlet side, and an ultrasonic toothbrush incorporating an ultrasonic oscillator in the neck part, which introduces ozone gas from the ozone generator into the inside of the toothbrush and ejects it from ejection holes 204 provided in the head 104 of the toothbrush. The ozone gas ejection toothbrush device is characterized by comprising the above.
Owner:原田 哲男 +2

Magnetic leaking stoppage block

The invention discloses a magnetic leaking stoppage block, and relates to the technical field of leaking stoppage devices, and the magnetic leaking stoppage block comprises a permanent magnet which is provided with a plugging surface, and the plugging surface covers and is magnetically attracted to the leakage position of an object to be subjected to leaking stoppage; the sealing ring surrounds the outer peripheral edge of the plugging surface, the inner peripheral edge of the sealing ring is tightly attached to the outer peripheral edge of the plugging surface, and the end face of the sealing ring protrudes out of the plugging surface, is tightly attached to the surface of an object to be plugged and surrounds the outer peripheral side of a leakage position. The adsorption force of the neodymium magnet is easily reduced, and the leaking stoppage performance is weakened.
Owner:闫瑾鹄

Concealed magnetic cabinet connectors for wardrobe systems

Main claim 1. Cabinet system with detachable body connection, comprising: - Side walls, - a top and a bottom, wherein a longitudinal groove is provided in each of the side walls in which concealed neodymium magnets are fixed, and wherein a corresponding groove is provided in the top and bottom in which a metallic square bar is positively embedded, such that when the components are joined together a magnetic, screwless and fittingless body connection is created which is stable, alignable and can be released without tools. II. Technical Designs and Variants
Owner:EDAN HUMAM

A front-mixed ship rust remover with magnetic eddy current resistance speed-regulating self-rotating nozzle

The invention discloses a magnetic eddy current resistance speed regulating self-rotating nozzle of a front-mixed ship rust remover, which comprises a liquid inlet joint lock nut, a load-relief sealing ring, a rotating sleeve, an angular contact bearing, a deep groove ball bearing, a sleeve O-ring, a neodymium magnet sleeve, a front sealing cover, a copper sleeve oil seal, a copper sleeve shield, an oil seal, a lower alloy nozzle, an upper alloy nozzle, a self-rotating body, a rotating body lock nut, a copper sleeve lock nut, an eddy current copper sleeve, a sealing O-ring, an arc-shaped neodymium magnet, a magnet bracket, a hollow liquid outlet rotating shaft, a rubber oil seal, a skeleton oil seal, a rotating hollow alloy, an alloy O-ring, and a stationary hollow alloy, forming a magnetic eddy current resistance speed regulating self-rotating nozzle of a front-mixed ship rust remover.
Owner:TIANJIN PULANSOLI WATER JET EQUIP TECH CO LTD

Directional sound amplification sound box

The invention provides a directional sound amplification sound box, relates to the technical field of sound boxes, and aims to solve the technical problems that a sound amplification sound box in the prior art is short in sound transmission distance, non-uniform in sound field coverage, poor in definition and poor in sound quality, and noise disturbs residents. The directional sound amplification sound box comprises a box body, a compression type coaxial neodymium magnetic driver used for generating middle and high pitches is arranged in the box body, the front end of the compression type coaxial neodymium magnetic driver is connected with a constant directivity horn, and the constant directivity horn comprises two opposite first side walls and two opposite second side walls. The distance between the two first side walls and the distance between the two second side walls are gradually increased from back to front, the outer walls of the two first side walls are connected with first bass loudspeakers, the inner walls of the two first side walls are provided with sound production structures, the box body is made of an anti-aging and anti-ultraviolet plastic shell, the bottom of the box body is provided with a three-channel D-type power amplifier, a network with AES67 and a DSP module, and the box body is provided with a loudspeaker. The sound box is provided with a U-shaped support, and the horizontal and vertical angles can be adjusted.
Owner:NINGBO SOUNDKING ELECTRONICS CO LTD

Neodymium magnet production intelligent suspension conveying process adsorption separation device

The invention discloses a neodymium magnet production intelligent suspension conveying process adsorption separation device, and relates to the technical field of neodymium magnet production. The device comprises a machine body, a feeding device is fixedly installed at the top of the left end of the machine body, a plurality of protruding blocks are fixedly installed on the inner wall of a cavity in the left side of the machine body, an abutting plate is fixedly installed on the inner wall of the machine body, a pushing device is arranged on the left side of the machine body, and a conveying device is arranged in the machine body. Through the arrangement of the material pushing device, a telescopic rod, a sliding plate and a material pushing block are made, a touch sliding rod, a hinge rod and the sliding block are matched with a limiting plate, an electric push rod is started, the electric push rod drives the telescopic rod to move forwards, the telescopic rod drives the sliding plate to move forwards, and the sliding plate drives the material pushing block to move forwards; and a plurality of neodymium magnets on the feeding device can be pushed away in a layered mode through the material pushing block, the time for pushing away single neodymium magnet in a layered mode is shortened, and the working efficiency of the device is improved.
Owner:KUNSHAN XINGBIWANG MACHINERY TECHNOLOGY CO LTD

Explosion-proof earphone

The utility model relates to the technical field of earphone equipment, and discloses an explosion-proof earphone which comprises a charging bin and an earphone body, a placement groove is formed in the charging bin, and the earphone body is placed in the placement groove. According to the explosion-proof earphone, the connecting part serves as an earphone main body structure, functional assemblies such as the microphone rod and the ear hook are integrated, mechanical support can be provided, internal electronic elements can be protected, rigid support can be provided through the zinc alloy outer framework arranged on the connecting part shell, the ear hook shell and the microphone shell, and meanwhile, the liquid silica gel buffer layer can absorb impact; the zinc alloy outer framework, the liquid silica gel buffer layer and the silica gel damping bush act synergistically to resist external impact and vibration and can be suitable for explosion dangerous environments, the low-resistance design of the magnetic type charging interface and the PogoPin spring probe is combined with the strong adsorption force of the N52 neodymium magnet array, rapid charging and stable connection are ensured, wind noise can be reduced through the titanium alloy windshield, and the service life of the battery is prolonged. The earplugs can enhance sound insulation and are suitable for high-noise industrial scenes.
Owner:BEIJING DELAN SYST CONTROL TECH CO LTD

Rubber-coated screw

ActiveCN223814309UGearingCrystallographyEpoxy
The utility model relates to the field of screws, and discloses a rubber-coated screw which comprises a screw body, hexagonal grooves are formed in the lower end of the screw body, a containing groove is formed in the inner top of each hexagonal groove, epoxy resin is coated on the inner wall of each containing groove, a neodymium magnet is fixedly arranged at the inner end of each containing groove, and the neodymium magnet is arranged in each hexagonal groove. A hexagonal buffer pad is fixedly arranged at the top end in the hexagonal groove, the screw body comprises a wear-resistant layer, a buffer layer is arranged at the inner end of the wear-resistant layer, and a bonding layer is arranged at the inner end of the buffer layer. According to the utility model, during installation, the neodymium magnet can be attracted to the connection part, and the initial butt joint of equipment can be conveniently and quickly carried out by utilizing the attraction characteristic of the neodymium magnet, so that the overall assembly efficiency is accelerated, the magnetic force of the neodymium magnet effectively prevents the slippage of parts, and the safety and reliability of the whole device in the use process are ensured; and the hexagonal buffer pads in the hexagonal grooves can effectively absorb impact force generated when the neodymium magnets are attracted to the connecting positions.
Owner:HEBEI ZEFENG METAL PRODUCTS CO LTD

Method for recovering rare earth elements

The invention relates to methods for recovering rare earth elements from neodymium magnet material The method comprises leaching the neodymium magnet, separating iron, separating rare earth elements by adsorbing into an exchange material, and recovering rare earth elements from the ion exchange material.
Owner:JYVASKYLAN YLIOPISTO

A magnetic adsorption device

This utility model discloses a magnetic adsorption device, belonging to the field of magnetic adsorption technology. It addresses the problem that wheels and upper supports can interfere with the opening of the crash cushion, making it inconvenient to use. The device includes a mounting plate with a groove on its bottom surface. Several evenly distributed high-strength neodymium magnets are fixed inside the groove. Four iron chains are fixed to the top surface of the mounting plate, with fixing strips attached to one end of adjacent chains. A scraper is provided on one side of the bottom surface of the mounting plate. This utility model, through the iron chains and fixing strips, allows the entire device to be fixed to the rear sides of the crash cushion vehicle, facilitating connection between the device and the vehicle. The mounting plate and groove allow the high-strength neodymium magnets to be connected to the mounting plate. The high-strength neodymium magnets can attract ferrous materials from the bridge surface, ensuring that the magnetic adsorption device, when connected to the crash cushion vehicle, does not affect the functions of the crash cushion.
Owner:CCCC INFRASTRUCTURE MAINTENANCE GRP CO LTD

Magnetic shock absorber suitable for large instrument equipment

The invention relates to the field of magnetic shock absorbers, and discloses a magnetic shock absorber suitable for large equipment, which comprises a base, a lower shell is fixedly mounted at the top end of the base, an upper shell is arranged on the inner side of the lower shell, and a magnetic shock absorption assembly is arranged between the lower shell and the upper shell. The magnetic vibration reduction assembly comprises a lower neodymium magnet fixedly installed on the inner bottom wall of the lower shell, a bottom energy harvesting device is arranged below the lower neodymium magnet, a bottom installation groove is formed in the bottom end of the upper shell, an upper neodymium magnet is installed in the bottom installation groove, a bottom cover plate is arranged below the upper neodymium magnet, and the bottom cover plate is fixedly connected with the upper shell through bolts. Repulsive force exists between the lower neodymium magnet in the lower shell and the upper neodymium magnet at the bottom of the upper shell, vibration reduction is conducted through magnetic force while equipment is supported, a non-contact suspension structure is designed on the basis of the principle that opposite poles of the neodymium magnets repel, a solid vibration propagation path is thoroughly blocked, mechanical abrasion is reduced, and the service life is prolonged.
Owner:范恩泽

Magnetic navigation noninvasive peritoneal dialysis catheter resetting device

The utility model provides a magnetic navigation noninvasive peritoneal dialysis catheter resetting device which comprises a guide wire and a neodymium magnet, the guide wire is movably arranged in a peritoneal dialysis catheter in a penetrating mode, the tail end of the guide wire extends out of the tail end of the intra-abdominal section of the peritoneal dialysis catheter and is naturally bent to form a J-shaped head, and the outer side of the J-shaped head is coated with a magnetic layer used for generating magnetic force between the J-shaped head and the neodymium magnet. The guide wire has the advantages that the guide wire intra-abdominal section is a hardened nickel-titanium alloy guide wire, good torque control is achieved, and the guide wire can conveniently pass through the bent position of the catheter; the tail end of the guide wire is naturally bent to be J-shaped after extending out of the catheter, so that the surface area can be increased, damage to surrounding tissues can be avoided, and ultrasonic positioning is facilitated; a ferroferric oxide magnetic material is coated on the J-shaped surface, so that the conduit can be driven to move under the action of the magnetic force of the neodymium magnet; the in-vitro part is a cake-shaped neodymium magnet, and an observation hole is engraved in the center of the neodymium magnet, so that the positioning of the abdomen skin can be observed conveniently during movement.
Owner:NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A