33results about How to "Large driving stroke" patented technology

The invention is a conjugate imaging-based multi-deformable mirror sires combined wave front corrector, comprising at least two same wave front correctors and corresponding 4f optical system, where the adjacent wave front correctors are interconnected by the 4f optical system to compose a combined wave front corrector and make each wave front corrector located in the optical conjugate imaging position, i.e. each wave front corrector is placed on the front focal surface and rear focal surface of the 4f optical system in order, the wave front corrector can be a deformable mirror using piezoelectric or electrostrictive ceramic as driver and separately driving continuous mirror surface, or a double-voltage deformable mirror, a deformable mirror made by microelectronic mechanical system (MEMS) technique, etc; the 4f optical system adopts a lens-composed refracting system or a reflecting system composed of off-axis parabolic mirror. And the invention has simple structure, high light energy utilization ratio, and can effectively increase wave front correction travel and provides an easy-to-implement method for improving the wave front correcting effect of the self-adapting optical system by using the existing deformable mirror manufacturing technique.

The invention discloses a two-dimensional rapid deflection table combining a sensing unit with a constraint element and a method. The deflection table comprises an X axis angle displacement sensing measurement device and a Y axis angle displacement sensing measurement device which are located between a micro-angle swinging platform and a base and further comprises four linear voice coil motors, and a double-axis flexible hinge is arranged on the lower surface of the micro-angle swinging platform. The X axis angle displacement sensing measurement device and the Y axis angle displacement sensing measurement device each comprise a rigid support, a pair of flexible metal beams which extend out relative to the two sides of the rigid support and mass blocks which are fixedly connected with the tail ends of the flexible metal beams correspondingly. The positions, nearby the root, of the upper surface and the lower surface of each flexible metal beam are provided with electric resistance strain gauges in an attachment mode. The first voice coil motor and the third voice coil motor are oppositely arranged with the same specification and form a first actuator set. The second voice coil motor and the fourth voice coil motor are oppositely arranged with the same specification and are perpendicular to the first actuator set in a crossing mode. The voice coil motors are adopted for driving to achieve large angular travel, the constraint rigidity of the deflection table is improved through the flexible metal beams, and the mechanism stability is improved; and meanwhile, the deflection table serves as the sensing unit to perform real-time measurement of double-axis deflection angles in a strain feedback mode.

The invention discloses a micromechanical electrostatic driven linear comb structure and relates to the technical field of micromechanical electrostatic drive. The structure comprises n groups of samelinear combs, wherein the n groups of linear combs are horizontally and uniformly distributed on a horizontal side wall of an external device; each group of linear combs comprise a static comb and adynamic comb; the static comb and dynamic comb are staggered E-shaped structures. Under external electrostatic drive, the dynamic comb carries out linear motion close to or away from the static comb along the horizontal side wall of the external device. When the static comb matches the dynamic comb, a first movable electrode stretches into a position between a first fixed electrode and a second fixed electrode, a second movable electrode stretches into the position between the second fixed electrode and a third fixed electrode, and a third movable electrode is set at the outer side of a thirdfixed electrode. According to the structure, under a vacuum environment and a drive voltage the same as those of a conventional technology, relatively long drive travel is obtained, and technologicaldifficulty is not increased.

The invention discloses a bidirectional-driving pedal turnover device. The bidirectional-driving pedal turnover device comprises a base, a pedal device, a swinging plate and a transmission device, wherein the base comprises a base plate and a side plate, the swinging plate and the front side of the base plate of the base are hinged together, a brake cable stop dog base is arranged at one end or two ends of the swinging plate, a shell is fixedly connected with the outer side of the side of the side plate of the base, a gate tube base is arranged in the rear end of the upper part of the shell, and a line hole is formed in the bottom of the gate tube base; a swinging plate track avoidance slot is formed inside the shell; and a flexible swinging plate releasing device is arranged inside the shell. The bidirectional-driving pedal turnover device disclosed by the invention has the advantages that a cushion rotating shaft seat of a toilet is utilized for fixing the base, and the side plate of the base and the end part of the swinging plate are sealed by virtue of the shell, so that both the base and the end part of the swinging plate are in a hidden state, appearance is clean, streamline is smooth, strength is high, and ornamental value is improved and practicability is enhanced.

The invention provides a hydraulic micro-displacement driver and a micro-displacement device. The hydraulic micro-displacement driver at least comprises a cylinder barrel (13) with an inner cavity (18), an upper end cover (12) and a lower end cover (15) used for sealing the two ends of the cylinder barrel (13), a spherical boss (11) positioned on the upper surface of the upper end cover, an oil inlet channel (14) arranged in the lower end cover (15) and communicated with the inner cavity, and an oil inlet nozzle (17) communicated with the oil inlet channel (14), wherein the central line of the spherical boss coincides with the central line of the cylinder barrel. According to the hydraulic micro-displacement driver provided by the invention, the sealed cylindrical and tubular cylinder barrel is filled with liquid with certain pressure to correspondingly axially elongate, so as to realize micro-displacement driving; the hydraulic micro-displacement driver has the characteristics of larger driving stroke, high stability in driving, high anti-interference ability, durability and the like, and overcomes the defects about small driving stroke of piezoelectric crystal and poorer stability.

The invention relates to an optical anti-vibration motor, which comprises a first base body, a second base body capable of moving relative to the first base body and a shell covering the peripheries of the first base body and the second base body, wherein a first magnet is installed on the first base body, a first coil is installed at the position, corresponding to the first magnet, of the second base body, the first coil is configured to be capable of generating driving force along an x axis and/or a y axis perpendicular to the x axis so as to make the first base body and the second base body generate relative motion, a first magnetic piece is further installed on the first base body, and is located on the side, opposite to the first magnet, of the first coil, and the relative positions of the first magnet and the first magnetic piece are always relatively fixed, so that the driving force can be increased through the arrangement of the first magnetic piece, the magnetic attraction force between the first magnetic piece and the first magnet does not affect the movement of the second base body, the impedance of the generated magnetic attraction force to the driving force can be avoided, and the motor is ensured to have relatively large driving force and driving stroke.

The invention provides a micromechanical electrostatically driven curved comb tooth structure, relating to the technical field of micromechanical electrostatic driving. The micromechanical electrostatically driven curved comb tooth structure comprises n identical curved comb tooth groups, wherein the n curved comb tooth groups are uniformly distributed at an outer edge of a device with arc-shapedexterior, each curved comb tooth group comprises static comb teeth and dynamic comb teeth, the static comb teeth and the dynamic comb teeth are in staggered cooperation and take on an F-shaped hammerstructure, under external electrostatic driving, the dynamic comb teeth moves close to or away from the static comb teeth in an curved way with the center of the device with arc-shaped exterior as a center of a circle, when the static comb teeth and the dynamic comb teeth cooperate, a first moving electrode stretches between a first fixed electrode and a second fixed electrode, and a second movingelectrode is outside the second fixed electrode in a radial direction. Under the same vacuum environment and driving voltage as the traditional technology, mechanical motion displacement is increased, and the processing difficulty is not raised.

The invention discloses a bathing device for a bedridden patient, and belongs to the technical field of medical instruments. The bathing device comprises a bathing frame, a movable bed frame, a sprayer and a power mechanism; the bathing frame is provided with a bathing area into which the movable bed frame extends; the sprayer is arranged on the power mechanism; the power mechanism is used for driving the sprayer to move into the bathing area; and the sprayer is unfolded or reset along with movement of the power mechanism. The movable bed frame is arranged, the bathing frame is arranged, the bathing area is arranged in the middle of the bathing frame, the sprayer is arranged on the bathing frame, and when the bedridden patient is bathed, only a bed board of the movable bed needs to stretch into the bathing area, the power mechanism drives the sprayer to move, so that the bedridden patient is flushed, and the patient is not difficult to bath any more; and the device is very convenient to use, the labor intensity of medical staff is greatly reduced, meanwhile, the body health of a patient is guaranteed, the sprayer can be stored when not used, the situation that the sprayer drips water to pollute the ground is avoided, and meanwhile the space occupied by the whole device is reduced.

The invention discloses an anti-shake actuating module and a camera module, the anti-shake camera module comprises a translation actuator, the translation actuator comprises a movable part, a fixed part and a first SMA wire, the movable part is movably arranged on the fixed part, the fixed part is provided with an elastic arm, the free end of the elastic arm abuts against the movable part, and thefirst SMA wire is arranged on the fixed part. One end of the first SMA wire is connected with the fixed part, the other end of the first SMA wire is connected with the elastic arm, the distance between the connection point of the first SMA wire and the elastic arm and the fixed end of the elastic arm is smaller than the arm length of the elastic arm, and the first SMA wire is used for driving theelastic arm to push the movable part to move horizontally; and the rotary actuator is arranged on the movable part and is used for driving the image sensor module to rotate.

The invention discloses a driving structure based on an eccentric shaft. The driving structure comprises a base body with an inner cavity, a driven part movably assembled in the inner cavity and an eccentric shaft in linkage fit with the driven part, the eccentric shaft comprises a first rotating shaft part and a second rotating shaft part which are coaxially arranged, an eccentric shaft part which is arranged between the first rotating shaft part and the second rotating shaft part and eccentrically arranged is further included, the diameter of the first rotating shaft part is larger than thediameter of the second rotating shaft part, a first shaft hole penetrating through the interior and the exterior is formed in the side wall of one side of the inner cavity of the base body, a second shaft hole is formed in the position, opposite to the first shaft hole position, of the other side wall of the inner cavity, the diameter of the first shaft hole is larger than that of the second shafthole, the first rotating shaft part is rotatably matched with the first shaft hole, the second rotating shaft part is rotatably matched with the second shaft hole, and the eccentric shaft part is inlinkage fit with the driven part. The base body forming of the driving structure is easier, the production cost is effectively reduced, the eccentric shaft and the base body can be more easily mounted, and the assembling efficiency can be greatly improved.

The invention discloses a piezoelectric inertia and piezoelectric worm-creep hybrid rotary driver which comprises a bearing mechanism, a driving mechanism and a fixing mechanism, wherein the bearing mechanism and the driving mechanism are fixed through the fixing mechanism, and the bearing mechanism and the driving mechanism are in contact with each other. According to the invention, triangular wave voltage which slowly rises and quickly falls is input into one driver; a piezoelectric actuator slowly extends and then quickly contracts; a triangular flexible driving component moves under the action of the piezoelectric actuator; based on an inertia rotation driving principle, the hybrid rotary driver inherits advantages of large driving stroke, high driving precision and high driving speedof an inertia driving mechanism, meanwhile, the rotor is clamped by a driving point in the effective driving process through the triangular flexible driving component under the inspiration of loosening and clamping movement in worm-creep driving, and therefore the advantage of large worm-creep driving torque can be obtained.

The invention discloses a shifting drive structure assembly of a gear shifter. The shifting drive structure assembly comprises a driving member and a shifting member used for driving a shift fork. The driving member fits the shifting member by means of elastic driving. A shifting structure with the driving member directly elastically driving the shifting member and the shift fork is adopted, the prior common structures such as a shift drum are omitted, box manufacturing is simplified, overall structure is simple and compact, manufacturing precision requirement is low, overall structure of a shifting mechanism is simplified, and a transmission is simple in overall structure, lighter in weight and good for energy saving and consumption reduction; elastic driving allows smooth and convenient shifting, rigid contact is avoided, shifting comfort is increased, riding comfort is increased, and the service lives of the parts can be guaranteed.

The invention discloses a method for driving a seesaw flywheel power machine to operate by utilizing gravity, magnetic force and buoyancy. The seesaw flywheel power machine is another invention (application number or patent number: 2018110847370). A floating box (2) capable of rotating along with rising and falling of the water tank (1) on the water surface is arranged, a push rod (4) with a magnetic touch switch (3) is erected on the floating box (2), the magnetic force of the magnetic touch switch (3) can lock the floating box (2) so that the floating box (2) cannot float up as the water surface rises, until a set water surface height is reached, the magnetic force is released, the floating box (2) and the push rod (4) begin to rapidly rotate, and thus a seesaw (12) of the seesaw flywheel power machine is pushed to move rapidly; a counterweight rod (5) is arranged to be connected with the push rod (4) through a rotating shaft (6); and when the floating box (2) rapidly rotates and ascends, the counterweight rod (5) drops rapidly to generate acceleration gravity amplification and enhance the continuous driving force of the push rod (4).

The invention discloses a driving mechanism for a lifting type buried transformer. The lifting type buried transformer comprises a bearing platform arranged in a pit in a lifting mode and a transformer substation arranged on the bearing platform. The driving mechanism includes a power cylinder, a first driving wheel, a second driving wheel and a driving strip, wherein the power cylinder is arranged in the pit and is positioned on one side of the bearing platform; the first driving wheel is rotatably arranged at an end part of a piston rod of the power cylinder; the second driving wheel is rotatably arranged on an inner side wall of the pit; and the driving strip is in transmission connection with the first driving wheel and the second driving wheel, two ends of the driving strip are connected to the bearing platform and the piston rod respectively, and the driving strip can sequentially wind the first driving wheel and the second driving wheel. According to the driving mechanism, the power cylinder is used for driving lifting, and besides a telescopic stroke of the power cylinder, the driving stroke is increased through cooperation of the first driving wheel, the second driving wheel and the driving strip so that the accumulated driving stroke is matched with the lifting stroke of a transformer substation, and the transformer substation can be smoothly lifted to the ground.

An embodiment of the invention discloses a gear and rack driving device capable of realizing floating meshing. The gear and rack driving device comprises a driving mechanism, a rack mechanism, a floating mechanism and a machine base; one end below the driving mechanism is connected with the machine base through the floating mechanism; the driving mechanism comprises a driving gear, the driving gear meshes with the rack mechanism, the driving gear floats along with the rack mechanism, and the driving gear transmits power to the rack mechanism. According to the gear and rack device capable of realizing floating meshing, a driving box acts on the rack mechanism through a wheel set, the purposes of positioning and guiding are achieved, accurate and reliable meshing between a gear and a rack is guaranteed, the floating mechanism is connected with the fixed machine base, the gear is driven to float along with the rack mechanism, thus the device adapts to large structural deformation and mounting errors, and the requirements of the position fluctuation and small-stroke lifting functions of a retractable roof are met.

The present invention discloses an SMA actuator, and also discloses a camera module having the SMA actuator and an electronic device having the camera module. The SMA actuator includes: an SMA wire that is contractible when energized; and an actuating body of a quadrilateral structure, wherein the four edges of the actuating body are formed by connecting four elastic supporting arms, the two endsof each elastic supporting arm are fixedly connected with one ends of the other two elastic supporting arms respectively, the two opposite angle parts of the actuating body fix the two ends of the SMAwire, and the other two opposite angle parts of the actuating body fix and are connected with a driven piece. The SMA wire clamped at the diagonal positions divides the actuating body of the quadrilateral structure into an upper triangular part and a lower triangular part, that is, every two elastic supporting arms and the SMA wires form a triangular structure, and the stroke capable of driving an object to move is longer.

The invention provides a magnetic structure of a voice coil motor, the voice coil motor, a zoom lens and photographic equipment, the magnetic structure of the voice coil motor is used on the zoom lens, the magnetic structure of the voice coil motor comprises a magnet yoke body, a magnet yoke cover body and a magnetic strip, the magnet yoke body comprises two straight magnet yoke sections which are oppositely arranged, and the corresponding ends of the two straight magnet yoke sections are connected through an arc-shaped magnet yoke section; the magnet yoke cover body covers the other corresponding ends of the two straight magnet yoke sections through a detachable connecting structure so as to form an annular magnet yoke body together with the magnet yoke body; and the magnetic strip is arranged in the annular magnet yoke body and is detachably mounted on one of the straight magnet yoke sections. According to the technical scheme, the annular magnet yoke body is arranged to be of the magnet yoke body and magnet yoke cover body assembling structure, so that the magnetic structure of the voice coil motor is convenient to install, and the driving stroke of the voice coil motor is increased by arranging the straight magnet yoke section.

The invention discloses a unidirectional driving pedal turnover device. The device includes a base, a foot pedal device, a swing plate and a transmission device; the base comprises a bottom plate and a side plate, the swing plate is hinged to the front side of the bottom plate of the base, one end or two ends of the swing plate is/are provided with one or two brake cable baffle seats, the outer side of the side surface of the side plate of the base is fixedly connected with a housing, the rear end of the upper portion of the housing is internally provided with a brake tube seat, the bottom of the brake tube seat is provided with a cable hole, and the inner side of the housing is provided with a swing plate track receding groove. A cushion rotary shaft seat of a water closet is used for fixing the base, the housing is used for closing the side plate of the base and the end of the swing plate, so that the end of base and the end of the swing plate are hidden, the device is neat in appearance, smooth in streamline shape and high in strength, and the practicability and the ornamental value are improved.