23results about How to "Increase magnetic attraction" patented technology

The invention discloses a relay and an electricity meter. The relay comprises an armature assembly, a pushing card, a static contact group, a movable contact group and an anti-short circuit unit. The armature assembly moves in the Y-axis direction, the pushing card and an armature assembly insert are integrally formed in an injection molding mode, the static contact piece set is provided with a reverse overcurrent part, the movable contact piece set is arranged on the pushing card and abuts against or is away from the static contact piece set in the Y-axis direction, and the overcurrent direction of the movable contact piece set is opposite to the overcurrent direction of the reverse overcurrent part in the X-axis direction. The anti-short-circuit unit comprises a first magnetizer group fixed relative to the movable contact group and a second magnetizer group fixed relative to the static contact group, the first magnetizer group and the second magnetizer group form a magnetic loop when the movable contact group is over-current, and at least part of the second magnetizer group is located between the movable contact group and the reverse over-current part in the Y-axis direction. By adopting the technical scheme, compared with a relay in the prior art, when the relay is impacted by fault large current, the movable contact group and the static contact group are more difficult to separate.

The invention relates to a surface-mounted magnetic steel assembly guide tool, and relates to the technical field of magnetic steel assembly equipment.The surface-mounted magnetic steel assembly guide tool comprises a guide rod and two side plates, the guide rod is located between the two side plates, the distance between the two side plates is not smaller than the width of magnetic steel, and the upper end faces of the side plates are located on the sides, away from the lower end face of the guide rod, of the upper end face of the guide rod; one end of the guide rod is provided with an inclined plane, the guide rod is fixedly provided with a supporting rod at the upper end of the inclined plane, the upper end face of the supporting rod is flush with the upper end face of the guide rod, and the lower end face of the supporting rod and the lower end of the side plate are located between the upper end face and the lower end face of the guide rod; the guide rod, the supporting rod and the two side plates are all made of non-magnetic or weak magnetic materials. The device has the effects of reducing the suction force of the magnetic steel to the surface of the rotor, preventing the magnetic steel from being held unstably and reducing the risk of magnetic steel breakage.

The utility model relates to the technical field of mobile phone supports, in particular to a two-in-one fixed mobile phone support with magnets and suckers, which comprises a main body back plate, a silica gel pad mounted on the surface of the main body back plate and a plurality of suckers convexly arranged on the surface of the silica gel pad. A containing groove is formed in the position, corresponding to the magnetic suction assembly, of the silica gel pad, and the height of the containing groove is the same as that of the lowest point of the concave face when the suction cup sucks. According to the utility model, the magnetic component is arranged in the main body back plate, and the silica gel pad provided with the sucker is arranged on the main body back plate, so that a mobile phone can be respectively adsorbed on a metal surface or a smooth surface through the magnetic component or the sucker, the application range is wide, and various requirements of users can be met; and the height of the accommodating groove is the same as the height of the lowest point of the concave surface when the sucking disc adsorbs, so that mutual interference between the magnetic suction assembly and the sucking disc during adsorption can be avoided, the adsorption fixing effect of the main body back plate can be effectively improved, and the adsorption stability is ensured.

The embodiment of the present application provides a charging plug, a charging port, equipment and a charging system, the charging plug comprises: a shell, which is provided with an external ridge and an internal projection, wherein the external ridge is distributed on the outer periphery of the internal projection, and the height of the external ridge is greater than the height of the internal projection; a magnetic attraction charging docking structure is arranged on the internal projection and comprises: at least one magnetic conduction positioning contact, which corresponds to one end of a corresponding magnetic conduction column and is used for magnetic coupling with a magnetic attraction contact arranged on a charging port; a power output contact is electrically connected with a charging transmission contact arranged on the charging port; a Hall proximity switch is arranged adjacent to the other end of the magnetic conduction column and is used for sensing the magnetic field change of the magnetic attraction contact of the charging port focused by the magnetic conduction column. Through the charging plug and the charging port of the embodiment of the present application, the charging plug can be forced to be inserted into the charging port of the load equipment to be charged in a unique and correct docking direction, thereby avoiding polarity reverse connection.

The utility model discloses a loudspeaker with adjustable magnetic attraction force. The loudspeaker comprises a loudspeaker single body, a shell and a magnetic piece, the loudspeaker single body comprises a basin frame, and a vibration assembly and a magnetic circuit assembly which are respectively arranged on two sides of the basin frame; a rear sound cavity is arranged in the shell, and a sound outlet communicated with the rear sound cavity is formed in the shell; the loudspeaker unit is arranged on the inner side of the sound outlet, and the vibration assembly covers the sound outlet; the magnetic piece is installed on the shell, located on the side, away from the vibration assembly, of the magnetic circuit assembly and can move relative to the loudspeaker single body to be close to or away from the magnetic circuit assembly. When the magnetic piece moves to the position close to the magnetic circuit assembly, the magnetic piece and the magnetic circuit assembly interact to increase the magnetic attraction force of the loudspeaker, so that the loudspeaker can be stably attracted to a preset position, meanwhile, the magnetic piece increases the magnetic field intensity of the magnetic circuit assembly, and the acoustic performance of the loudspeaker is effectively improved; when the magnetic piece moves to the position far away from the magnetic circuit assembly, the magnetic attraction force of the loudspeaker is weakened, and a user can easily take the loudspeaker.

The application discloses a massager, which comprises a shell, a massage assembly, a driving assembly and a magnetic flat plate. The shell comprises a first connecting section, a second connecting section and a third connecting section which are fixedly connected, the second connecting section and the third connecting section are arranged at intervals along a first direction, and the first connecting section, the second connecting section and the third connecting section jointly enclose a hollow space. The massage assembly is accommodated in the hollow space and is slidably connected with the second connecting section and the third connecting section respectively. The driving assembly is accommodated in the shell and is transmissionally connected with the massage assembly. The magnetic flat plate is further included, the magnetic flat plate comprises a first plane and a second plane which are oppositely and parallelly arranged along a third direction, the first connecting section comprises a third plane, the first plane is magnetically attracted to the back plate of an electronic device, and the second plane is arranged on the third plane. Compared with the prior art, the magnetic attraction force of the magnetic flat plate to the electronic device is increased, and the fixed connection between the magnetic flat plate and the electronic device is more reliable.

The utility model discloses a range finder, which comprises a protective sleeve; the range finder main body is suitable for being assembled on the protective sleeve; the magnet is arranged on the range finder main body, the magnet is arranged close to the protective sleeve, and a magnetic object is arranged on the protective sleeve so as to magnetically attract the magnet; the range finder comprises a protective sleeve, a magnet and a magnetic force enhancing part, one surface, deviating from the protective sleeve, of the magnet is a first surface, and the magnetic force enhancing part wraps the first surface so as to enhance the magnetic attraction force between the magnet and the magnetic object. Therefore, the range finder and the protective sleeve are assembled more stably, and dislocation is prevented.

The application discloses a contact assembly and nanocrystalline relay and relates to the technical field of relays; the application comprises an insulating frame, two static sheets are arranged on the insulating frame, and static contacts are arranged on the static sheets; a movable plate is slidably arranged on the insulating frame, a dynamic sheet is arranged on the movable plate, two dynamic contacts are arranged on the dynamic sheet; a differential mechanism comprises a frame fixed to the insulating frame, first guide rods and second guide rods are rotatably penetrated into opposite inner walls of the frame; the force generated by an electromagnetic component does not directly act on the dynamic sheet, the differential mechanism is arranged, two-stage speed increase is realized by the differential mechanism, the moving stroke of the dynamic sheet is greater than the moving stroke of the first rack driven by the electromagnetic component, and the moving speed of the dynamic sheet is faster than the moving speed of the first rack driven by the electromagnetic component during the closing or breaking process; the separation speed and the breaking distance are increased, the contact breaking force is sufficient, the generation of electric arc is reduced, and therefore the practicability is improved.

The application belongs to the technical field of driving devices, and relates to a curved surface self-adaptive mobile driving mechanism and a wall climbing robot. A power input system is connected with a bevel gear reversing driving system through a two-stage planetary reduction system, and is used for realizing intersecting shaft transmission. A front axle curved surface self-adaptive system is installed between the two-stage planetary reduction system and the bevel gear reversing driving system, and is used for realizing rotation of the front axle bevel gear reversing driving system relative to the power input system and the two-stage planetary reduction system. A rear axle curved surface self-adaptive system is installed on the two-stage planetary reduction system, and is used for realizing rotation of a rear axle universal wheel relative to the power input system and the two-stage planetary reduction system. A magnet adsorption system comprises front wheel magnet groups and rear wheel magnet groups which are always parallel to a wall surface. Real-time automatic adaptive adjustment of the robot to a complex wall surface is realized, adsorption stability of the robot on the wall surface is improved, an operation mode of the robot is optimized, the ability of the robot to adapt to a complex surface is improved, and the use scene of the robot is widened.

The utility model relates to the technical field of water conservancy, in particular to an angle-adjustable water conservancy sprayer support which comprises a disc. The angle adjusting assembly comprises a rotating disc rotationally installed on the upper end face of the disc, a rotating connector is fixedly installed on the upper end face of the rotating disc and composed of a fixed seat and a movable seat which are rotationally connected with each other, a clamping head is fixedly installed on the upper end face of the movable seat, a clamping groove is formed in the clamping head, and the angle adjusting assembly is fixedly installed in the clamping groove. Fixing blocks are symmetrically installed on one side of the clamping groove, and a rotating column is rotationally installed between the fixing blocks. Through linkage control of the rotating speed detection element and the electromagnet, intelligent adjustment of the nozzle angle is achieved, when the nozzle range is shortened due to water pressure reduction, the controller automatically enhances the magnetic attraction force of the electromagnet according to the rotating speed change of the rotating column, and the external support is driven to drive the clamping head to increase the swing angle; and the spray head can carry out compensatory irrigation in a wider coverage range.

A clamping and pressing type conversion copper connector comprises a copper connector body, the copper connector body is provided with an insertion end and a clamping and pressing type socket end, and the insertion end is communicated with the clamping and pressing type socket end through a through flow channel. A thickened step end face is arranged on the inner wall of the clamping and pressing type socket end, an annular groove is formed in the step end face, a magnet base is installed in the annular groove, a plurality of magnets are arranged on the magnet base, and the magnets are arranged in a Halbach array, so that a strong magnetic force side is formed on the inner side of the magnet base, and a weak magnetic force side is formed on the outer side of the magnet base. According to the utility model, the plurality of magnets interact with the first-end external pipe fitting, so that the first-end external pipe fitting is adsorbed on the stepped end face through magnetic attraction force, a certain limiting and anti-falling effect is provided in the clamping and pressing process, certain external force impact can be resisted, and the stability of the relative position of the first-end external pipe fitting and the copper joint body is ensured.

This invention belongs to the field of solenoid valve technology, specifically providing a solenoid valve. The invention aims to solve the problem of high processing costs in existing solenoid valves. To this end, the solenoid valve of this invention includes a valve body, a valve core, and an elastic member. The valve body defines a first inlet / outlet, a second inlet / outlet, and a receiving cavity. The valve core is movably disposed in the receiving cavity, dividing the receiving cavity into an inlet / outlet communication area and an inlet / outlet isolation area, the inlet / outlet communication area being connected to the first and second inlets / outlets respectively. The elastic member is arranged in the inlet / outlet isolation area and includes a fixed ring fixedly connected to the valve body and multiple elastic arms fixedly connected to or integrally formed with the fixed ring. The elastic arms extend radially inward toward the valve core and abut against the valve core, so that the elastic member drives the valve core through the elastic arms to block the air passage between the first and second inlets / outlets. This invention reduces the processing cost of the solenoid valve.

The utility model relates to the technical field of sewing equipment, and discloses a cloth displacement prevention bag opening limiting piece which comprises a pressing piece, a fixed cutter frame, a fixed cutter blade and a cloth bag displacement prevention limiting piece body. The cloth bag opening prevention displacement limiting piece comprises a positioning clamping and fixing assembly, a positioning pressure adjusting assembly for adjusting clamping and fixing pressure according to the thickness of cloth and a controller, positioning clamping and fixing grooves are sequentially formed in the tops of the two sides of the fixed cutter frame in a staggered mode, the fixed blade is installed in the fixed cutter frame, and a bag opening groove is formed in the fixed blade in a linear mode. Bolt fixing grooves connected with the output end of an external bag opening air cylinder are formed in the top of the periphery of the fixed cutter frame, the pressing piece is located at the top of the cloth bag opening operation table under the fixed cutter blade, the pressing piece is a rectangular structure frame, and the positioning pressure adjusting assembly can adjust clamping positioning pressure according to the thickness of cloth. The bag opening limiting piece is simple in structure, convenient to operate and capable of effectively preventing cloth from displacing, and the requirements of modern textile production for the efficient and accurate bag opening process are met.

The utility model discloses a level, belong to manual measuring tool, the present level's magnet steel is fixed in the blind hole of the ruler body with the mode such as embedding, bonding, is not firm, the utility model discloses a magnet steel is fixed in the ruler body through fixed structure, and the fixed structure includes first accommodating hole, second accommodating hole and seat, and the first accommodating hole extends from the side of the ruler body to the inside of the ruler body, and the second accommodating hole intersects with the first accommodating hole and extends from the inside of the ruler body to the bottom surface, and the seat is located in the first accommodating hole, and the contour of the seat is greater than the contour of the second accommodating hole, and the magnet steel is fixed in the seat and is located in the second accommodating hole, and the first accommodating hole is sealed and covered and is blocked. The seat can not be separated from the first accommodating hole through the second accommodating hole. The magnet steel fixed in the seat can be more firmly and reliably assembled with the seat, which is different from the firmness caused by embedding and bonding the magnet steel in the blind hole of the ruler body, so that the magnet steel can be firmly and reliably assembled in the ruler body when being fixed in the seat and located in the second accommodating hole.

The utility model discloses a magnetic attraction assembly with adjustable magnetic attraction force. The magnetic attraction assembly comprises a mounting seat, first magnetic steel, second magnetic steel and a rotating seat, the first magnetic steel is fixedly connected to the mounting seat; the second magnetic steel is arranged on the mounting seat and can slide relative to the mounting seat to be close to or far away from the first magnetic steel; the rotating seat is rotationally connected with the mounting seat and is in transmission connection with the second magnetic steel; and the rotating seat is used for driving the second magnetic steel to slide relative to the mounting seat. According to the magnetic attraction assembly with the adjustable magnetic attraction force, the second magnetic steel is slidably mounted on the mounting seat, and when the second magnetic steel slides to the position close to the first magnetic steel, the first magnetic steel and the second magnetic steel interact with each other to increase the magnetic attraction force, so that the magnetic attraction assembly can stably attract mobile electronic equipment; when the second magnetic steel slides to the position far away from the first magnetic steel, partial area of the magnetic attraction assembly and the magnetic attraction area of the mobile electronic equipment are staggered, so that the magnetic attraction force between the magnetic attraction assembly and the mobile electronic equipment is weakened, and a user can conveniently take the mobile electronic equipment.

An in vivo self-assembly magnetic anchoring device for laparoscopic cholecystectomy with reduced puncture and card, comprising: a permalloy sub-magnet group, which is composed of N permalloy cylinders connected in sequence through a rotating shaft, wherein the axial direction of the rotating shaft is parallel to the axial direction of the permalloy cylinder, and the permalloy cylinders at both ends are provided with hooks for laparoscopic grasping forceps to clamp; a fishing net device, which is composed of N-1 nylon lines and a non-magnetic ring, wherein one end of each nylon line is connected to one of the rotating shafts, and the other end is fixed to the ring; a traction line group, which is composed of three traction lines and three soft clips, wherein each soft clip is linked to the front end of a traction line, and each traction line end passes through the ring and then passes out through the puncture and card; an in vitro magnet, which is located outside the body, provides magnetic guidance for the self-assembly of the permalloy sub-magnet group, and is anchored to the abdominal wall with the self-assembled permalloy sub-magnet group, and is adjusted to move the gallbladder in the body in different directions by manual traction outside the body.

The utility model discloses a washing machine safety control electromagnetic lock, and particularly relates to the technical field of control electromagnetic locks, the washing machine safety control electromagnetic lock comprises a lower cover, the top of the lower cover is fixedly connected with an upper cover, one side of the lower cover and one side of the upper cover are provided with a spring bolt in a sliding mode, one side of the spring bolt is fixedly provided with a plurality of contacts, and one side of the spring bolt is provided with a limiting mechanism in a sliding mode. The limiting mechanism is fixedly arranged between the lower cover and the upper cover, the coil frame is fixedly arranged on one side of the limiting mechanism between the lower cover and the upper cover, the enameled coil is wound on the coil frame, the fixed iron core is installed on the rear side of the coil frame to increase magnetic attraction force, one end of the movable lock cylinder penetrates in from one side of the compression spring and is arranged on the spring bolt in a sleeving mode, and the movable lock cylinder is locked. When the electromagnetic coil is powered on, the spring bolt is driven to move due to the magnetic attraction force of the coil, so that the working voltage is low, the power consumption is low, high-frequency electromagnetic sound and radiation are avoided, the heating speed is low, the service life is long, the coil is effectively prevented from bursting, and the safety during use is improved.

The utility model relates to an electromagnetic switch and storage box, including electromagnet subassembly and permanent magnet subassembly, electromagnet subassembly includes at least two in first direction sequential interval arrangement's magnetic core, wherein two adjacent magnetic core is first magnetic core and second magnetic core, and the first magnetic core and second magnetic core are wound with coil, and permanent magnet subassembly has at least first magnetic pole, second magnetic pole, third magnetic pole and fourth magnetic pole.

The utility model belongs to the technical field of engine heat dissipation, and discloses an electromagnetic clutch reversing fan for an engine, the electromagnetic clutch reversing fan comprises a reversing fan body, a belt pulley, a clutch mechanism and a bracket, the reversing fan body comprises a reversing mechanism and a plurality of fan blades arranged on the peripheral side of the reversing mechanism, and the reversing mechanism can adjust the angles of the fan blades. The belt pulley and the reversing mechanism are coaxially arranged, the clutch mechanism comprises an iron core and a coil which are arranged on the belt pulley, and when the coil is powered on, the iron core can generate magnetic attraction force towards the belt pulley on the reversing mechanism so that the reversing mechanism can abut against the belt pulley to rotate along with the belt pulley. The bracket penetrates through the belt pulley and extends into the reversing mechanism to support the belt pulley and the reversing mechanism, so that oil consumption is reduced when an engine is started or the temperature is low, the utilization rate of output power of the engine is improved, meanwhile, the situation that a transmission belt is prone to fatigue fracture due to instant impact is avoided, and the service life of the transmission belt is prolonged. And the reliability of the engine is further ensured.

The invention relates to the technical field of window wipers, in particular to a multi-splicing-mode fast-assembly type window wiper. Comprising a mounting shell, two sliding columns and two first magnetic blocks are slidably connected in the mounting shell, and the sliding columns are slidably connected with the first magnetic blocks; the movable shell is arranged on one side of the mounting shell, two second magnetic blocks and a plurality of adsorption cylinders are slidably connected into the movable shell, the first magnetic blocks are in magnetic attraction fit with the second magnetic blocks, and two first cleaning mechanisms and a second cleaning mechanism are arranged on the movable shell; and the second mounting rod is fixedly connected to one side of the movable shell, and a scraping plate is mounted on the second mounting rod. The adsorption barrel moves to be attached to the surface of the glass, the movable shell is fixed to the glass through negative pressure fixing operation, the problem that the movable shell falls off after losing magnetic adsorption, and the glass is damaged due to collision between the movable shell and the glass is solved, and potential safety hazards during glass cleaning are reduced.

The application relates to a magnetic conversion type flexible temporary fastener which comprises a shell, a switch assembly, a magnetic control assembly and a clamping assembly; the magnetic conversion type flexible temporary fastener introduces a magnetic control assembly, the relative movement of a magnet and a shielding frame changes the spatial magnetic field generated by the magnet, so that the magnetic control assembly generates magnetic attraction to an abutting table, and then a top rod can be firmly inserted into a pawl to maintain the fastening effect on an aircraft panel wall, which is favorable for simplifying the assembly process and improving the stability and safety of aircraft assembly; the magnetic focusing effect of a magnetic conductive cover can further change the distribution of the spatial magnetic field, so as to accurately control the magnetic attraction of the magnetic control assembly to the abutting table; the temporary fastener has a clever structure design, stable clamping state and simple assembly.

The invention discloses a double-rotating-shaft hinge structure and application of the double-rotating-shaft hinge structure in sealing door assembly, and relates to the technical field of sealing door hinges, the double-rotating-shaft hinge structure comprises a hinge, a main hinge base and an auxiliary hinge base, a U-shaped groove is formed in one end of the hinge, one end of the main hinge base is hinged into the U-shaped groove through a main pin shaft, and the other end of the main hinge base is hinged into the auxiliary hinge base; the other end of the hinge is hinged to the end of an auxiliary hinge base through an auxiliary pin shaft, the main pin shaft and the auxiliary pin shaft are sleeved with rubber sleeves, fixing holes are formed in the main hinge base and the auxiliary hinge base, a base plate is arranged on one side of the auxiliary hinge base, a baffle is arranged on the side, away from the base plate, of the main hinge base, and the baffle is connected with the main hinge base. The sealing door can be easily closed, the sealing door still has good sealing performance after the hinge and the sealing strip are abraded, and in addition, when the sealing door is sucked by internal negative pressure or the sealing strip is aged and consequently the sealing door is difficult to open, the sealing door can be easily opened.