71results about How to "Reduced driving force requirements" patented technology

The invention relates to a scissors fork lifting type auxiliary supporting mechanism capable of being locked at a random position. The scissors fork lifting type auxiliary supporting mechanism comprises a bracket and a top plate below the bracket. The bracket is fixedly connected with the top plate through two disc springs, a base plate is positioned below the top plate, a screw is horizontally arranged in the length direction of the base plate, a hand wheel is installed on the outer side of one end of the screw, and the middle of the screw is in threaded connection with a first sliding block and a second sliding block which are arranged at intervals. When the hand wheel is rotated, the first sliding block and the second sliding block can perform opposite-direction movements in the axial direction of the screw, four groups of linkage mechanisms are further arranged between the top plate and the base plate, the upper ends of the linkage mechanisms are hinged to the top plate, the lower ends of the linkage mechanisms are hinged to the first sliding block and the second sliding block respectively, and the first sliding block and the second sliding block can drive each group of linkage mechanisms to perform lifting movements when moving. The supporting mechanism can reliably support a product and have a large displacement lifting function, can perform fine adjustment of the vertical position, can be reliably locked at the random position, is small in vertical dimension and meets the installing space requirements.

The invention discloses a double-shaft tracking support. The double-shaft tracking support comprises a bracket, a stand column, a center pivotal shaft, a turn angle adjusting device and an elevation angle adjusting device which are all used for bearing a solar component. The bracket is connected with the stand column through the center pivotal shaft, a turn angle pivotal shaft of the center pivotal shaft is hinged to the bracket so that the bracket can rotate in the turn angle direction, and an elevation angle pivotal shaft of the center pivotal shaft is hinged to the stand column so that the bracket can rotate in the elevation angle direction. The turn angle adjusting device comprises a first transmission part and a first driving part, wherein the first transmission part is connected to the bracket, and the first driving part is mounted on the turn angle pivotal shaft and is matched with the first transmission part. The elevation angle adjusting device comprises a second transmission part and a second driving part, wherein the second transmission part is connected to the elevation angle pivotal shaft or the bracket, and the second driving part is mounted on the stand column and is matched with the second transmission part. The double-shaft tracking support has the advantages of being firm in structure, low in cost, low in power consumption, stable in operation, convenient to install, transport and maintain daily and the like.

The invention discloses a novel scissor-based annular array extensible mechanism. The mechanism comprises a plurality of scissor unit mechanisms of the same structure, the scissor unit mechanisms are connected and combined through shared mobile connector components, shared fixed connector components and vertical rods. Each scissor unit mechanism comprises a center rotating connector component, the mobile connector components, the fixed connector components, the vertical rods and inclined rods, the two mobile connector components and the two fixed connector components are fixedly connected with the two vertical rods respectively, one ends of the four inclined rods are hinged to one side ends of the two mobile connector components and one side ends of the two fixed connector components respectively, and the other ends of the four inclined rods are fixedly connected with the center rotating connector component respectively. Due to the fact that the scissor unit mechanisms are annularly arrayed, and the overall annular array extensible mechanism is formed. After the overall mechanism is arranged in an array, only one freedom degree exists, and the mechanism is simple in structure, and easy to machine and install. The novel scissor-base annular array extensible mechanism is large in extending caliber, small in shrinking caliber, small in overall weight and high in overall reliability.

The invention discloses a camera module and electronic equipment. The camera module comprises: at least one lens; a light sensing assembly used for sensing light passing through the lens; and a driving device which can drive the light sensing assembly to move in the direction close to or away from the lens so as to adjust the focal length of the camera module. The driving device capable of drivingthe light sensing assembly to move is arranged in the camera module, the distance between the light sensing assembly and the lens is changed through movement of the light sensing assembly, and the zooming function of the camera module can be achieved. Since the weight of the light sensing assembly is far less than that of the lens, the requirement on the driving force of the driving device is low. Under the same condition, the moving efficiency of the light sensing assembly is high, and rapid zooming is convenient to achieve. Furthermore, as the lens is immobile, the view field opening of thecamera module can be kept in a small size, the normal imaging requirement can be met, the occupied space in the electronic equipment is small, and the arrangement, design and installation cost of other parts or assemblies is low.

The invention discloses a large-diameter corrugated pipe vibration forming device and a method. The forming device mainly consists of a mandrel, a corrugated core mold, a connecting disc, forming wheels, a support frame and a vibrating device. The corrugated core mold coats the mandrel, and is connected with a flange at the bottom of the mandrel and the connecting disc at the end part to form an integral mold. A pipe blank coats the outer surface of the corrugated core mold; left and right end clamping jaws are arranged at the two end parts of the pipe blank; and the forming wheels are distributed on the outer side of the pipe blank. After the clamping jaws clamp the pipe blank, the pipe blank rotates around the axis, the vibration excitation is applied to the forming wheels, and the forming wheels radially and axially feed the pipe blank. All traditional forming processes are synthesized; the friction force between the metal pipe blank and the forming mold is effectively reduced by a vibration exciting device; and when high-frequency vibration excitation is applied, the deformation resistance of the metal pipe blank can be reduced, the corrugation and breakage generation and development of the pipe blank are inhibited, the size precision of large-wave high corrugated pipes is guaranteed, and the surface smoothness of formed workpieces is increased.

The invention relates to an electrothermal-driven in-plane bistable radio frequency microswitch belonging to the technical field of micro electromechanics. The electrothermal-driven in-plane bistable radio frequency microswitch comprises an electrothermal-driven mechanism, a mechanical locking mechanism and a signal conversion mechanism, wherein the electrothermal-driven mechanism is positioned under the mechanical locking mechanism; and the mechanical locking mechanism is connected with the signal conversion mechanism. The invention can realize the mechanical locking by using a pair of locking contacts, does not require continuous power consumption when keeping in a stable state, also fully develops the advantages of large driving force, high displacement power density and convenient integrated manufacture of an electrothermal driver and can be used as the actuation form of the mechanical locking structure of the switch. The switch has simple structure, foreseeable radio frequency (RF) characteristic, possibility of batch manufacture and practical application and suitability for integral manufacture.

The invention belongs to the field of motor production equipment, specially relates to a paper inserting machine for a fan stator, and particularly relates to a paper inserting machine for a fan stator of which stator slots are arranged on the outer circumference of the stator. According to the paper inserting machine, a stator bearing mechanism is arranged on a frame on the right side of an indexing mechanism. According to the stator bearing mechanism, a guide rail is arranged on the frame, a sliding seat is arranged on the guide rail, the sliding seat is connected with a stator bearing seat, the upper part of the stator bearing seat is provided with an circular arc bearing concave cavity, and bearing rollers are evenly distributed in the bearing concave cavity along the axial direction. According to the invention, a fan stator paper inserting machine applicable to fan stator paper inserting is designed. The fan stator paper inserting machine has a stator bearing mechanism which can bear a fan stator without the need for hoisting or manual lifting operation, which, on one hand, offers protection to stator slots on the surface of the fan stator, and on the other hand, reduces the labor intensity of workers.

The invention discloses an integrated vacuumizing, air inflating and pressing device for a medicine bottle. The integrated vacuumizing, air inflating and pressing device is used for overcoming the defect that a single device cannot achieve the operations of vacuumizing, air inflating and pressing in the prior art. The integrated vacuumizing, air inflating and pressing device comprises an air exchange sleeve, a mounting seat and a pressing mechanism. An air cavity chamber is arranged at the lower portion of the air exchange sleeve, and a sealing sleeve is arranged at the mouth portion arranged at the lower portion of the air cavity chamber. A connector is arranged at the lower portion of the air exchange sleeve, and the connector is communicated with the air cavity chamber. The air exchange sleeve is installed on the mounting seat, and the air exchange sleeve can move up and down. The lower portion of the pressing mechanism is arranged in the air exchange sleeve and is stretched into an air cavity, the upper portion of the pressing mechanism is installed on the mounting seat, and the upper portion of the pressing mechanism can move up and down. The integrated vacuumizing, air inflating and pressing device for the medicine bottle can complete the operation of vacuumizing, air inflating and pressing and has the advantage of being simple in structure.

The invention discloses a sewing machine. The sewing machine comprises a backstitch driving part and a backstitch executing mechanism connected with the backstitch driving part and used for realizing the backstitch sewing, and further comprises a tiny stitch executing mechanism connected with a tiny stitch driving part, elastically installed between the backstitch driving part and the backstitch executing mechanism and used for limiting the driving distance of the backstitch driving part. The sewing machine is capable of realizing the tiny stitch function by inserting and embedding the tiny stitch driving part between the backstitch driving part and the backstitch executing mechanism.

The invention discloses a military extra-high-pressure oxygen valve which comprises a sealing structure between a valve seat of a valve body and a valve clack. The sealing structure between the valve seat of the valve body and the valve clack is an angle-difference sealing pair with the angle difference ranging from 2 degrees to 5 degrees, and a valve stem is sealed to form a composite packing sealing structure. The military extra-high-pressure oxygen valve has the advantages that owing to the angle-difference sealing pair, an extremely narrow linear sealing belt is formed when two matched sealing surfaces are in contact with each other, high sealing specific pressure can be generated by means of applying extremely low sealing force, the military extra-high-pressure oxygen valve is excellent in sealing performance and low in driving force requirement, accordingly, requirements of extra-high-pressure industrial-grade pure oxygen under harsh and complicated working conditions in the aerospace field can be met completely, and the purpose of safety usage is achieved.

The invention provides an automatic presser foot lifting device of a sewing machine. The automatic presser foot lifting device of the sewing machine comprises a drive source, a transmission lever, a lifting frame, a pressing rod, a pressing rod guide frame and a presser foot. The drive source is fixed to a shell of the sewing machine. The drive source comprises a telescopic shaft. The transmission lever comprises a pivot, a long arm of force and a short arm of force, wherein the pivot is hinged to the shell of the sewing machine, and the long arm of force and the telescopic shaft of the drive source are hinged to the two ends of a connecting rod respectively. The lifting frame comprises a bottom frame and a side frame, wherein the upper end of the side frame is hinged to the short arm of force. The pressing rod guide frame and the presser foot are fixed to a pressing rod body. The portion, below the pressing rod guide frame, of the pressing rod body is matched with a first guide sleeve fixed to the shell. The upper end of the pressing rod is matched with a second guide sleeve fixed to the shell. The lower end face of the pressing rod guide frame is attached to the upper end face of the bottom frame of the lifting frame. According to the automatic presser foot lifting device of the sewing machine, automatic pressure foot lifting motion of the sewing machine can be achieved through the drive source under the action of a small drive force, so that the drive source is small in size and low in manufacturing cost, the sewing machine is more attractive, and packaging and transportation of the sewing machine are facilitated.

The invention provides a self-adaptive automobile lamp steering system and an automobile. The self-adaptive automobile lamp steering system comprises a lamp holder, a support, two retractable parts, a crossbeam, a bulb and a spherical hinge seat. Existing horizontal movement and pitching movement which are independent are coupled into movement of the two retractable parts by the self-adaptive automobile lamp steering system. Spatial output angle of the self-adaptive automobile lamp steering system is fixed after positions of the two linear retractable parts are determined. When the two linear retractable parts move oppositely, the lamp holder connected with the crossbeam is driven to swing horizontally, and when the two linear retractable parts move in the same direction, the lamp holder connected with the crossbeam is driven to pitch. The two linear retractable parts retract simultaneously at a specific speed to drive the lamp holder to swing horizontally and pitch simultaneously, and the requirements of each linear retractable part are lowered. The two linear retractable parts are compactly arranged so that operating space is saved, and since the two linear retractable parts are identical in structure, complexity in production and assembly of parts is lowered, and production cost is effectively reduced.

The invention relates to the technical field of three-dimensional garages, and particularly discloses a telescopic comb tooth type three-dimensional parking system. The telescopic comb tooth type three-dimensional parking system comprises a mechanical three-dimensional garage; a plurality of movable parking plates used for parking automobiles are arranged inside the mechanical three-dimensional garage; the system also comprises a vehicle carrying platform and a transfer vehicle; the vehicle carrying platform is provided with a groove; the tops of the groove are symmetrically fixed with fixed comb tooth racks; the transfer vehicle comprises an upper chassis, a lower chassis, a lifting mechanism and a plurality of telescopic comb tooth groups; the telescopic comb tooth groups are positionedin the upper chassis; each telescopic comb tooth group comprises two push-pull rods and two centrosymmetric telescopic comb teeth; the telescopic comb teeth are arranged in the width direction of theupper chassis; telescopic comb teeth comprise long rods and short rods which are fixedly connected horizontally; the axes of the long rods and the short rods are parallel; the outer ends of the long rods and the short rods are flush; the push-pull rods comprise telescopic ends and fixed ends; the fixed ends of the push-pull rods are fixedly connected with the upper chassis; and the telescopic endsof the push-pull rods are fixedly connected with the inner ends of the long rods. By adopting the technical scheme, the stability of the automobile during transportation can be improved.

The invention discloses a three-dimensional printer single-motor extrusion system capable of actively switching a printing head. The three-dimensional printer single-motor extrusion system capable ofactively switching the printing head comprises a base plate, a feeding assembly, a printing head fixing base, a switching auxiliary device, a fixed printing head and a movable printing head arranged on the printing head fixing base, and a switching mechanism nested into the movable printing head, wherein the feeding assembly, the printing head fixing base and a switching auxiliary device are arranged on the base plate; the feeding assembly is used for continuously pushing a filament material into the fixed printing head and the movable printing head for melting and extruding; and the switchingmechanism and the switching auxiliary device are used for up-and-down moving the movable printing head. According to the three-dimensional printer single-motor extrusion system capable of actively switching the printing head provided by the invention, through designing the movable printing head assembly and the fixed printing head assembly, the automatic switching of the two printing heads can berealized through switching the movable printing head; the movable printing head and the fixed printing head are independent so as to be free of being interacted; and the system is simple in structure, the printing accuracy is ensured, two filament materials can be printed alternately by only using one drive motor without the need for using any other external force except for the extrusion system,and the height difference of the two printing heads can be switched, so that the weight and the cost of the extrusion system are reduced.

The invention discloses a tray type online winding machine capable of preventing products from scattering and a winding method of the tray type online winding machine, and belongs to the technical field of winding machines. The winding machine comprises an upright column, a lifting assembly mounted in the upright column, an elevating assembly in transmission connection with the lifting assembly, atray in transmission connection with the elevating assembly and a winding assembly mounted on the tray, wherein the winding assembly comprises a supporting plate which is hollow inside and arranged in the tray, an outer gear ring arranged on the inner side wall of the supporting plate, an inner gear ring in transmission connection with the outer gear ring, an annular ring fixedly connected to thelower surface of the inner gear ring, a driving assembly for driving the annular ring and a film fixing shaft fixed on the upper surface of the inner gear ring. The tray type online winding machine and the winding method thereof have the advantages that rotation of a base plate loaded with large objects is not required; product scattering caused by rotation of the base plate can be avoided, safety factors are increased, and energy can be effectively saved.

The invention provides a capacitor mismatch error shaping switching circuit and method suitable for an oversampling SARADC, and belongs to the technical field of analog-digital hybrid integrated circuits. According to the invention, the second-order shaping of the capacitor mismatch error can be realized by feeding back the quantization results of the previous two low-order (LSB) and the capacitormismatch error. Compared with a traditional switching algorithm, a reference voltage needs to be additionally introduced, and the LSB capacitance value is changed into three times of the original capacitance value. The circuit is simple in logic, low in circuit overhead, easy to implement, excellent in capacitor mismatch error shaping effect and suitable for high-precision application occasions.

The invention discloses an efficient and reliable automatic yarn discharging machine including a gantry support, a yarn discharging mechanism, a horizontal guide rail and a horizontal linear drive device, the top portion of the gantry support is fixedly provided with the horizontal guide rail, and the yarn discharging mechanism is vertically arranged at one side of the gantry support; the horizontal linear drive device and the gantry support are connected in a fixed or hinged mode, the yarn discharging mechanism includes a yarn discharging frame, yarn discharging brackets, a yarn discharging seat, vertical guide rails and a first vertical linear drive device, the yarn discharging frame is vertically arranged, and the top portion of the yarn discharging frame is slidably connected with thehorizontal guide rail and connected with an active end of the horizontal linear drive device in a fixed or hinged mode; two sides of one surface of the yarn discharging frame are fixedly provided withthe vertical guide rails, two sides of the yarn discharging seat are separately and slidably connected with the vertical guide rails, and one surface, facing the interior of the gantry support, of the yarn discharging seat is fixedly provided with a plurality of yarn discharging brackets which are perpendicular to the yarn discharging seat; and the first vertical linear drive device is verticallyand fixedly connected with the top portion of the yarn discharging frame and a moving end is connected with the yarn discharging seat in a fixed or hinged mode. The efficient and reliable automatic yarn discharging machine has the characteristics of compact and reliable structure, high efficiency of yarn discharging, difficult-to-deform yarn roll and high adaptability.

The invention discloses a lightweight electromagnetic fan clutch. The lightweight electromagnetic fan clutch comprises a flange plate, a rotary sleeve, a fan blade fixing disc, an electromagnet and ahollow barrel. The fan blade fixing disc is arranged on the rotary sleeve, a rolling bearing is arranged in an inner hole of the fan blade fixing disc, a thrust bearing is arranged at the front end ofthe fan blade fixing disc, the electromagnet is arranged in front of the rotary sleeve, a first clutch piece is arranged at the rear end of the fan blade fixing disc, a second clutch piece located behind the first clutch piece is arranged on the rotary sleeve, sliding grooves are symmetrically formed in the outer circle of the rotary sleeve, the hollow barrel is concentrically arranged in the rotary sleeve, a supporting rod connected with the hollow barrel through the sliding grooves is arranged in an inner hole of the second clutch piece, and the front end of the hollow barrel stretches outof the rotary sleeve and is provided with an iron piece opposite to the electromagnet. According to the lightweight electromagnetic fan clutch, when the temperature of a water tank is high, engagementand disengagement actions are rapid, the dead weight is low, the requirement on driving force is low, and the energy consumption of an engine can be reduced.

The invention provides a labor-saving bicycle, and belongs to the technical field of bicycles. The labor-saving bicycle solves the problem that the existing bicycle has poor structural stability. The labor-saving bicycle comprises a frame and a driving wheel, wherein crank discs are connected to two sides of the frame respectively; pedals are connected to the side parts of the crank discs; the labor-saving bicycle further comprises a driving wheel rotationally fixed on the frame and two transmission rods which are arranged on two sides of the frame respectively and are in a long rod shape; one ends of the two transmission rods are connected with the driving wheel; the other ends of the two transmission rods are movably connected to the eccentric positions of two crank discs respectively; the two transmission rods can alternately swing back and forth around the driving wheel when the crank discs rotate in the circumferential direction; a one-way transmission structure is arranged between the driving wheel and the two transmission rods; and the rotation of the driving wheel can be driven by a chain or a belt to rotate the driving wheel. The labor-saving bicycle has the advantage of good stability of the transmission structure.