64results about How to "With self-locking feature" patented technology

The invention relates to a novel hexapod bio-robot. The novel hexapod bio-robot comprises a body platform and six modular mechanical feet with the same structure, wherein the body platform is a rack for connecting the six mechanical feet. The novel hexapod bio-robot is characterized in that the body platform comprises an upper rack plate, a lower rack plate and connecting plates, wherein the upper rack plate and the lower rack plate are in the same shape and size and connected through the connecting plates, the six mechanical feet are symmetrically distributed between the upper rack plate and the lower rack plate and on two sides in the length direction of the upper rack plate through flanges, and adjacent mechanical feet have the equal distance; each mechanical foot comprises a coxa unit, a meropodium unit and a tibia unit, the coxa unit and the tibia unit are fixed at two ends of the meropodium unit respectively, and the upper part of the coxa unit is connected with the body platform. The robot is provided with a foot end sensing system and has multiple motion modes, thereby realizing omni-directional walking in the complex environment and dynamic sensing for the terrain environment.

The invention discloses an antiskid self-locking rail clamping device for rail mounted gantry crane. The rail clamping device comprises a frame, wherein a self-locking screw rod is arranged at the middle part of the frame; a thrust bearing is arranged between the self-locking screw rod and the frame; a handle is arranged at the top end of the self-locking screw rod; a stop nut is arranged at the bottom end of the self-locking screw rod; a sliding nut capable of moving up and down along the self-locking screw rod is arranged at the middle part of the self-locking screw rod; a pair of clamping pincers for clamping a rail are arranged on frames on the two sides of the self-locking screw rod; lower rolling wheels are arranged at the tail end of the clamping pincers; a first connecting rod is connected between the clamping pincers and the sliding nut; a self-locking box body is arranged at a position above the rail of the rail clamping device; a second connecting rod is connected between the self-locking box body and the clamping pincers; and the self-locking box body is used for preventing the rail clamping device sliding along the rail.

The invention relates to a manipulator technology, and provides a wrist rotating clamp structure for a hydraulic manipulator. The structure comprises a linear oil cylinder, a micro hydraulic motor, aspeed reducing mechanism and a pawl; the linear oil cylinder is arranged by adopting a rear mode; the micro hydraulic motor and the speed reducing mechanism are positioned between the linear oil cylinder and the pawl; an output shaft of the micro hydraulic motor is connected to the speed reducing mechanism, and is vertically staggered with a piston rod of the linear oil cylinder; a worm wheel output shaft of the speed reducing mechanism is of a hollow structure; the piston rod of the linear oil cylinder is connected to a driving mechanism of the pawl after penetrating through the worm wheel output shaft, and drives opening or closing thereof; and the micro hydraulic motor drives the pawl to realize forward-reverse rotation through the speed reducing mechanism. The structure is simple in structure, low in technical difficulty, high in reliability, excellent in maintainability and economy, easy to realize, high in speed reducing ratio, high in wrist rotating torque and low in lowest stable rotating speed, allows staggered arrangement of the hydraulic motor and the pawl to achieve more compact and flexible structure, and has self-locking characteristics on a worm wheel and a worm rod.

The invention discloses a hoistway type traction elevator for building construction. The hoistway type traction elevator for building construction comprises a traction machine, a top beam, traction media, a guide wheel, a suspension cage and a counterweight, wherein the top beam is fixed at the upper end of a building hoistway; the traction machine is fixed on the top beam; one end of the tractionmedia is led out by the traction machine and then guided to the suspension cage below the traction machine, and is connected with the suspension cage in a middle fixed mode; the other end of the traction media is led out of the traction machine and then led to the counterweight positioned below the traction machine, and is connected with the counterweight; the traction media are steel wire ropesor steel belts; and the top beam can ascend and descend to move. The elevator provided by the invention has the advantages of high lifting speed and low noise, can be arranged in the elevator hoistwayof a building, and has high safety.

The invention relates to a mechanical apparatus applied to calibration of a torque sensor, and a method. One end of a force transmission plate is inserted into a U-shaped support, and the U-shaped support is fixed at one position; a handle is manually operated, a worn drives a main shaft to rotate, the force transmission plate rotates synchronously, since the force transmission plate is fixed by the U-shaped support, the U-shaped support provides a reverse acting force for the force transmission plate, and the reverse acting force and the acting force of the worm cause torque to be generated one by one on the main shaft, the worm has a self-locking feature, records a group of data every time when an angle is rotated, the size of the torque is read through a sensor digital display meter to be calibrated and a standard sensor digital display meter, readings are compared, finally, a comparison curve map is drawn, and whether a sensor to be calibrated accords with application requirements. The apparatus and method provided by the invention have the following advantages: the torque sensor calibration apparatus is accurate in calibration result and simple to operate; the adjustable measuring range is quite large, and the versatility is high; and by use of the self-locking principle of a turbine worm, the readings can be read at any fixed points, values are displayed through the digital display meters, the comparison is obvious, and the reading is convenient.

The invention provides a casting deburring device and a working method thereof and belongs to the technical field of casting deburring. The device comprises a base, a clamp body located on one side ofthe base and a lifting hydraulic cylinder located on the other side of the base, wherein a main shaft is fixedly arranged on a telescopic rod of the lifting hydraulic cylinder, the main shaft is rotationally connected with a base arm and a main arm, the main arm can move left and right relative to the base arm and can rotate around the base arm freely in the horizontal plane, a grinding head is arranged at the lower end of the main arm, the grinding head is driven to rotate by a high-speed motor, and the clamp body is used for fixing a casting to be deburred. The device is simple in structureand can assist workers in deburring, so that the working efficiency is greatly improved.

The invention relates to a self-driven double-layer stereo parking device. The self-driven double-layer stereo parking device comprises a supporting device, driving lifting devices, a falling prevention device and kick-ahead prevention devices, wherein the driving lifting devices are arranged at the two ends of the supporting device; the falling prevention device is arranged at the bottom end of across beam of the supporting device, and a stair is arranged outside one end of the supporting device; and the kick-ahead prevention devices are arranged on the positions, near the tops of one end ofthe stair, of lifting platforms of the driving lifting devices. The self-driven double-layer stereo parking device mainly adopts a form of chain transmission to realize autonomous parking of vehicles; the self-driven double-layer stereo parking device has a simple overall structure and low cost, is easy to realize double-layer parking for family users, saves parking space and is easy to maintain;and the self-driven double-layer stereo parking device adopts a lifting form of straight up and down and is especially suitable for family parking with two vehicles, the two cars can be parked with only one parking space, the space is fully used, and the land resources are saved.

The invention discloses a novel smart gas meter motor valve which is composed of a valve body, a motor (2), a speed changing apparatus (3), a screw drive mechanism (15) and a valve stem (5). Executing mechanisms, like the motor (2), the speed changing apparatus (3), an anti-stalling mechanism (17), the screw drive mechanism (15) and the valve body (5) which are installed on the inner wall of the valve body achieve no stalling upon the opening and closing of the valve, and the valve can be closed with small torque through cooperation of an energy storing apparatus (14) and the start of the motor (2), so that the energy consumption of the motor valve is reduced, and the service life of the motor valve is prolonged. The novel smart gas meter motor valve of the invention is simple in structure and convenient in manufacturing, and can be widely applied to all types of gas meters.

The invention relates to a cotter assembling device which comprises a base. An air valve supporting base is arranged on the front side of the base. A supporting platform is arranged on the air valve supporting base. The left side and the right side of the base are each provided with a supporting column. A sliding rod is arranged above the base. The two ends of the sliding rod are fixed to the two supporting columns respectively. The sliding rod is provided with an adjusting sliding block. The rear portion of the adjusting sliding block is provided with a through hole in clearance fit with the sliding rod. The front portion of the adjusting sliding block is provided with a threaded hole with the center axis perpendicular to the center axis of the through hole. A screw rod penetrating through the threaded hole is assembled in the threaded hole. A handle is arranged at the upper end of the screw rod. A press fitting sleeve is fixedly connected to the lower end of the screw rod. The lower end face of the press fitting sleeve is provided with a groove used for being matched with the air valve spring. The bottom of the groove is provided with a receding hole extending upwards. The side wall of the press fitting sleeve is provided with an observation hole communicated with the receding hole. By means of the cotter assembling device, the cotter assembling strength can be lowered, and the cotter assembling efficiency can be improved.

The invention discloses a novel intelligent lock with the door closing self-locking property. The novel intelligent lock comprises a shell, a baffle fastened to one side face of the shell and a locking mechanism arranged in the shell. The locking mechanism comprises a spring bolt mechanism, a key tongue mechanism and a linkage mechanism in linkage with the spring bolt mechanism and the key tongue mechanism. The spring bolt mechanism comprises a spring bolt with a rotary shaft, a spring bolt torsional spring for driving the spring bolt to retract, a stop plate for driving the spring bolt to rotate and a stop rod shaft fixedly connected with the stop plate, and the rotary shaft is arranged on the spring bolt, and rotatably fixed to the shell. The key tongue mechanism comprises a key tongue with a rotary shaft hole, a key tongue torsional spring for driving the key tongue to retract, an escapement fluted disc for driving the key tongue to rotate and a motor for driving the escapement fluted disc to rotate. The linkage mechanism comprises a linkage plate, and a long hole, a first connecting vertical plate, a second connecting vertical plate and a third connecting vertical plate are arranged on the linkage plate.

The invention particularly relates to a high-heeled shoe with a function of automatic height adjustment, and belongs to the field of clothing. The high-heeled shoe with the function of automatic height adjustment is composed of a first bracket, a second bracket, a third bracket, a reduction box, a motor, a sleeve, a long nut, a shoe sloe and a threaded rod, wherein the first bracket is fixed on the inner portion of the left side of the shoe sole, the second bracket is fixed on the inner portion of the right side of the shoe sole, the second bracket is hinged with the upper side of the right end of the first bracket, the left end of the third bracket is hinged with the lower side of the right end of the first bracket, and the right end of the third bracket is hinged with the reduction box;the lower portion of the right side of the shoe sole is provided with the reduction box, the reduction box is fixedly connected with the motor, an output shaft of the reduction box is fixedly connected with the shoe sole, and an input shaft of the reduction box is fixedly connected with a spindle of the motor; the motor is fixedly connected with the sleeve, the sleeve is internally embedded with the long nut, the spindle of the motor is fixedly connected with the threaded rod, and the threaded rod cooperates with the long nut. The high-heeled shoe with the function of automatic height adjustment has the advantages that the structure is simple, the stability is good, the high-heeled shoe is attractive, and the control is convenient.

The invention discloses a three-direction hydraulic four-link assembly platform, belonging to the technical field of steel wire rope vibration isolator assembly, which solves the problems that for a multi-layer densely distributed steel wire rope vibration isolator, steel wire ropes of each layer are densely arranged, the number of steel wire ropes is large, the diameter is big, and the rebound resistance between layers is large and assembly can not be performed, and the like. The invention comprises steel wire rope pushing and bending machines, a top parallel intercommunicated pressing oil cylinder, a liftable fine leveling table, and a device body, and the left and right steel wire rope pushing and bending machines of the device body are assembled by two groups of four-link structures ina three-direction hydraulic clamping method, two top hydraulic cylinders are pressed vertically and two side steel wire rope pushing and bending machines are pressed horizontally, which solves the technical problem that the vibration isolator of multi-layer densely distributed steel wire ropes can not be assembled due to the rebound interference between layers.

The present invention discloses a three-way hydraulic four-link assembling platform and a method for manufacturing a vibration isolator with the same and belongs to the technical field of steel wire rope vibration isolator assembly; the present invention has a special advantage in solving a problem that the vibration isolator with multiple layers of densely arranged steel wire ropes cannot be assembled because the steel wire ropes are densely arranged and are large in amount and diameter fo each layer and large in rebound resistance between layers. The platform of the present invention comprises steel wire rope push bending machines, top parallel-connection and intercommunicating compaction oil cylinders, a liftable fine-levelling worktable, and an equipment body, wherein left and right steel wire rope push bending machines are composed of two sets of four-link structures; the assembling platform adopts a three-way hydraulic clamping mode for vertically compressing two top hydraulic oil cylinders and horizontally compressing two side steel wire rope push bending machines, thereby solving the technical problem that the vibration isolator with multiple layers of densely arranged steel wire ropes cannot be assembled due to rebound interference between the layers.

The invention discloses an integration device for a spiral glass tube. The device comprises a base plate, a threaded column, a lifting wheel disc, an extrusion assembly, a sliding rail, a gear columnand a rotary drive; the threaded column is vertically mounted on the base plate in a threaded manner, and the extrusion assembly is mounted on the sliding rail. The device further comprises the gear column and the rotary drive; the threaded column and the gear column are vertically mounted on the base plate by bearings; the rotary drive is arranged at the lower surface of the base plate, and is used for driving the gear column and the threaded column to rotate; the gear column is in engaging connection with the lifting wheel disc; and the extrusion assembly includes a feeding barrel, an extrusion tube and a sliding seat, the extrusion tube is arranged at the bottom of the feeding barrel, and the extrusion assembly can move along the axial direction of the sliding rail or rotate around theaxis of the sliding rail. The gear column and the threaded column are used together to drive the lifting wheel disc to spirally lift, the extrusion assembly continuously extrudes a flexible glass tubeduring spiral ascending of the lifting wheel disc in order to mold, the rotating speeds of the gear column and the threaded column are matched to generate a spiral line with different inclination angles, and the sliding of the extrusion assembly changes the diameter of the spiral line.

The invention discloses an automatic leveling system and method for a single square cabin. The system comprises a horizontal sensor, a pressure sensor, leveling supporting legs and a control box. The horizon sensor is arranged at the center of the roof of a square cabin body; the four leveling support legs are respectively arranged at four corners of the square cabin, and pressure sensors are mounted at the bottoms; the pressure sensor can measure the stress value of the corresponding leveling supporting leg, a pressure threshold value is preset, and when the pressure value is smaller than the pressure threshold value, the pressure sensor can control the corresponding leveling supporting leg to descend. The horizontal sensor measures the inclination angle of the square cabin; and the control box judges the highest supporting leg, calculates the extending distance of other leveling supporting legs and controls the leveling supporting legs to ascend. According to the designed automatic leveling system for the single square cabin, one-key full-automatic leveling can be achieved, lifting control can be conducted on the single supporting leg according to needs, the lifting height of the supporting leg can be set, the structure is simple, maintenance is easy, precision is high, control is easy, the self-locking characteristic is achieved, and the automatic leveling system can adapt to different terrain environments.

The invention belongs to the technical field of weighing detection, and provides a weighing detecting line. The weighing detecting line comprises a first conveying platform, a weighing detecting platform and a second conveying platform, which are all arranged in sequence. A mounting frame is movably arranged on one side of the first conveying platform. A first regulating mechanism is arranged between the mounting frame and the first conveying platform. The mounting frame is rotatably provided with a conveying roller which is driven by a driving device. The conveying roller is provided with conveying threads with the thread pitch being wider gradually in the conveying direction of processing products. The other side of the first conveying platform is provided with at least two stop levers.A plurality of second regulating mechanisms is uniformly arranged between the stop levers and the first conveying platform. One side of the weighing detecting platform is provided with a weight detector and a supporting plate, and the other side of the weighing detecting platform is provided with a pushing mechanism which is arranged corresponding to the supporting plate. The upper surface of thesupporting plate and a conveying belt of the weighing detecting platform are located at the same level. Smooth and orderly conveying and automatic weighting detection of the processing products are realized, and efficiency of weighing and detecting quality of the processing products are improved.

The invention belongs to the technical field of health care, and particularly relates to a foot massage device. The foot massage device comprises a lower base, a worm wheel is installed on the outer side of an internal threaded sleeve rotationally installed in the lower base, the worm wheel is in meshed connection with a worm installed on an output shaft of a lifting motor, outer sleeves are installed in installation columns on vertical inner edges of the lower base, an upper base is connected to the top ends of telescopic rods slidably mounted on the inner sides of the outer sleeves and a trapezoidal screw rod in threaded connection with the inner side of the inner threaded sleeve, massage grooves are formed in a vibration plate slidably mounted below a protective cushion mounted on the inner side wall of the upper base, massage balls are mounted at the bottoms of the massage grooves, eccentric wheels are rotatably installed on rotating shafts installed on a rotating shaft support installed on the inner bottom surface of the upper base and fixedly connected with a vibration motor, the trapezoidal screw rod can drive the upper base to ascend and descend to adjust then the using height of the device, self-locking structures are adopted between the worm wheel and the worm and between the trapezoidal screw and the internal threaded sleeve, safety is high, and the massage beads canmassage and stimulate the foot bottoms of a user under the vibration of the vibration plate.

The invention relates to an electric motorcycle / two-wheel electric vehicle undercarriage with a failure protection function. The undercarriage comprises an undercarriage main supporting body, a push-pull force connection body, a motor lead screw driving body and a failure pull rod device. According to the undercarriage, a motor push rod is used as a driving mode to push an undercarriage supportingrod to descend, a sleeve and a return spring which are innovatively designed are arranged between the motor driving push rod and the undercarriage supporting rod to achieve fast withdrawal of the undercarriage, and meanwhile the failure protection difficulty can be lowered. According to the undercarriage, by designing the failure pull rod device, under the condition that a motor / the motor drivingbody fails, the upward pull force of a lever mechanism drives a cable to complete the descending process of the undercarriage, the failure protection difficulty is lowered, and meanwhile the possibility of continuous driving of vehicles is guaranteed.

The invention discloses a lifting device with a double-layer lifting function, belongs to the technical field of mechanical devices and aims to solve the problems of structural redundancy and low safety of the existing lifting device. The lifting device comprises a guide structure, a first lifting mechanism and a second lifting mechanism, wherein a first rotary support of the first lifting mechanism is connected to a base of the guide structure; the second lifting mechanism is connected to the base of the guide structure through a second rotary support; and the first rotary support and the second rotary support are respectively coaxial with a center hole of the base of the guide structure and fixed on the upper side and the lower side of a flat plate of the base respectively to be used forproviding power for the movement of the first lifting mechanism and the second lifting mechanism. According to the lifting device, a ball screw pair is used as a transmission component and the solidball screw and the hollow ball screw are used to drive a double-layer lifting mechanism in an ingenious manner of being coaxially cooperative, thereby greatly simplifying a transmission system and solving the problems of structural redundancy and huge volume of the traditional lifting machine. Besides, double locking ensures the safety of the lifting device reliably.

The invention provides an automatic measuring and abrasion cutting device for display production and manufacturing, belongs to the technical field of display manufacturing equipment, and aims to solve the problems that when workpieces are conveyed by existing conveying equipment, after feeding is conducted on a conveying belt, the conveying belt is lack of a clamping and positioning structure, the workpieces shake or shake in the die cutting and polishing process, and workpiece machining is not facilitated. The automatic measuring and abrasion cutting device comprises a transmission frame, the left end of a frame body of the transmission frame is fixedly connected with two fastening end frames, and the two fastening end frames are fixedly connected to frame bodies at the two sides of the transmission frame respectively; and two loosening and unloading frames are included, the two loosening and unloading frames are fixedly connected to the upper portion of the right end of the transmission frame, and the two loosening and unloading frames are fixedly connected to a front side frame body and a rear side frame body of the transmission frame correspondingly. It can be seen that the structure is additionally arranged on a conveying mechanism, the functions of fixed-point clamping and fixed-point discharging are achieved, practice of automatic machining and production is facilitated, and the positioning stability of the workpieces when the workpieces are machined on a conveying device is improved.

The invention discloses a dual-motor hybrid power gearbox which comprises an engine, a main driving motor, an auxiliary driving motor, a planet row, a parking clutch and an engine lock-up clutch. An outer gear ring of the planet row is connected with a main driving motor and an output shaft through gear meshing, a planet carrier of the planet row is connected with the engine, a sun gear of the planet row is connected with the auxiliary driving motor, the auxiliary driving motor is an ISG motor, an input shaft of the main driving motor is connected with the output shaft through gear meshing, and the output shaft is connected with a differential through gear meshing. A parking clutch is arranged on an outer gear ring of the planet row, and the parking clutch locks the outer gear ring of the planet row to meet the vehicle parking requirement. The engine lock-up clutch is arranged on the planet carrier of the planet row and the engine input shaft, and the engine lock-up clutch locks the planet carrier of the planet row and the engine input shaft to achieve the engine lock-up function. The gearbox has the advantages of being reliable in work, low in energy efficiency, compact in structure and low in cost.

The invention discloses a mold opening and closing mechanism. The mold opening and closing mechanism mainly comprises a combined mold and a driving mechanism. When a rotary driving mode is adopted, a motor drives a lead screw to rotate through a reversing apparatus and a transmission shaft, partition plates connected to the lead screw move forwards or backwards along with rotation of the lead screw, and due to the fact that the two partition plates of the same set of combined mold are connected to right-hand threads and left-hand threads respectively, when the lead screw rotates, the two partition plates move face to face or back to back at the same time, and mold closing or mold opening of the mold is achieved; when a direct driving mode is adopted, driving cylinders are arranged at the two sides respectively, the driving cylinder at one side is fixedly connected to the partition plate at one side of the combined mold through a driving frame and a driving rod, and the driving cylinder at the other side is fixedly connected to the partition plate at the other side of the combined mold; and when the driving cylinders at the two sides push towards middle or pull towards two sides at the same time, the partition plates at the two sides of the combined mold move face to face or back to back at the same time, and mold closing or mold opening of the mold is achieved. The mold opening and closing mechanism has the advantages of being simple in structure, convenient to operate and easy to implement.

The invention discloses an anti-pollution urine micro-ecological specimen collection device, and relates to the technical field of urine sampling, the anti-pollution urine micro-ecological specimen collection device comprises an expander, the expander comprises two opposite petal-shaped plates, the rear ends of the two petal-shaped plates are hinged to the two sides of the front end of a first connecting pipe respectively, one side of the front end of each petal-shaped plate is provided with an inclined surface part, and the other side of each petal-shaped plate is provided with an inclined surface; buckle structures are arranged on the inner surfaces and the outer surfaces, close to the inclined face parts, of the petal-shaped plates, the buckle structures are used for fixing the non-slip mat assembly to the petal-shaped plates, a driving assembly is arranged between the two petal-shaped plates, the driving assembly is connected to the first connecting pipe, and the driving assembly is used for driving the two petal-shaped plates to be opened and closed; the bulking device comprises a bulking device body, the bulking device body is in a column shape with the smooth front end, the rear end of the bulking device body is connected with a second connecting pipe, the rear end of the second connecting pipe is rotationally connected with the first connecting pipe, and a protruding part is arranged on the side, close to the inclined face part of the petal-shaped plate, of the bulking device body; the urethral orifice can be better exposed, and urine sampling is facilitated.

The invention discloses a piezoelectric ceramic driver pre-tightening device. A thread column is rotatably arranged on a base, the thread column and a piezoelectric ceramic driver are arranged in thesame direction, one end of the thread column can abut against the end of the piezoelectric ceramic driver, the thread column is driven through a worm gear, the thread column is sleeved with the worm gear in a threaded manner, a worm and the worm gear are in threaded fit to form a worm gear and worm mechanism, when the worm rotates, the worm gear is driven to rotate, due to the fact that the two axial ends of the worm gear are limited by a base in an ejecting manner, when the worm gear rotates, the axial position is kept unchangeable, the worm gear and the thread column are in thread fit, whenejecting is needed, the worm is twisted, the thread column gets close to the piezoelectric ceramic driver, one end of the piezoelectric ceramic driver is in contact with the thread column, the other end of the piezoelectric ceramic driver makes contact with a work mechanism, pressure is applied through the thread column, the piezoelectric ceramic driver is tightly attached to the work mechanism, the worm gear and worm mechanism has the self-locking characteristics, the worm gear is driven only by the worm, the worm gear cannot reversely drive the worm to rotate, and the loosening possibility is removed.

The invention discloses a rope end connecting piece, a hoisting structure and a traction type building construction elevator utilizing the hoisting structure. The rope end connecting piece comprises awedge sleeve and a wedge block, wherein an inner cavity with two open ends is formed in the wedge sleeve, one open end of the inner cavity is large and the other open end of the inner cavity is small; the wedge block is provided with a large head end and a small head end opposite to the large head end; a groove is formed in the outer peripheral surface of the wedge block; and the small head end of the wedge block is inserted into the inner cavity from the large open end of the inner cavity. According to the rope end connecting piece and the hoisting structure, an object can be connected at any position in the middle of a rope. According to the traction type building construction elevator, the traction medium can be released along with the increase of the height of a floor, so that the working length of the traction medium is increased and the maximum liftable height of the elevator is increased.

The invention discloses a piezoelectric ceramic driver pretensioning device. A threaded column is rotatably arranged on a base, and the threaded column and the piezoelectric ceramic driver are arranged in the same direction, and one end of the threaded column can lean against the end of the piezoelectric ceramic driver; The column is driven by a worm gear, and the thread of the worm wheel is set outside the threaded column; the worm and the thread of the worm wheel cooperate to form a worm gear mechanism. When the worm rotates, it drives the worm wheel to rotate. The axial position remains fixed, and the worm gear and the threaded column are screwed together. When it is necessary to tighten, turn the worm to make the threaded column close to the piezoelectric ceramic driver. One end of the piezoelectric ceramic driver is in contact with the threaded column, and the other end is in contact with the working mechanism. Contact, apply pressure through the threaded column, so that the piezoelectric ceramic driver and the working mechanism fit closely; the worm gear mechanism has self-locking characteristics, and the worm gear can only be driven by the worm gear, and the worm gear cannot reversely drive the worm gear to rotate, eliminating the possibility of loosening .

An equilateral multi-pass self-locking three-dimensional parking garage and its installation method. The garage includes two first shaft bodies and a second shaft body. The first shaft body includes a shaft body provided with threads, and the shaft body There are at least 2 parking platforms on the periphery, the second shaft body includes a threaded shaft body, and 1 parking platform is provided on the periphery of the shaft body; the parking platform consists of a ring body with internal threads and a ring body provided around the ring body Composed of at least 2 parking spaces, two first shafts and second shafts are adjacent to each other, a motor is installed on the parking platform, and a transmission screw is connected to the end of the motor, and the transmission screw and the shaft form a worm gear mechanism . With this structure, the vehicle on the parking platform can be moved conveniently and quickly through the up and down movement of the first shaft body and the second shaft body and the rotation of the parking platform, which effectively solves the problem of inconvenient movement of the vehicle in the existing garage. Moreover, on the basis of effectively saving land resources, as many parking spaces as possible can be set, which effectively meets the needs of people's daily parking.

The invention relates to a four-claw synchronous type mechanical unlocking automatic taking and putting device comprising a four-claw synchronous mechanical gripper and a cargo storage box. The four-claw synchronous mechanical gripper comprises an installing frame, an input motor, a T-shaped dual output speed reducer, a connecting rod transmission device, hook claws, fixed support legs and wedge-shaped anti-collision blocks. The fixed support legs are perpendicularly fixed to the lower portion of the installing frame. The hook claws and the wedge-shaped anti-collision blocks are held in the fixed support legs sequentially. The input motor on an installing frame bottom plate is connected with an input shaft of the T-shaped dual output speed reducer. Two output shafts of the T-shaped dual output speed reducer are connected with the first end of the connecting rod transmission device. The second end of the connecting rod transmission device is connected with the hook claws. The hook clawsachieve opening and closing motion relative to the fixed support legs through driving of the connecting rod transmission device. The cargo storage box comprises a box body, a box cover and fixing latch hooks. The fixing latch hooks are movably connected in second grooves in the four corners of the bottom of the box body, and hooking inclined plates are arranged in the positions, on the upper portions of the fixing latch hooks, in the second grooves.

The invention provides a linkage self-locking device for a machine tool. The linkage self-locking device for the machine tool is characterized in that the linkage self-locking device for the machine tool comprises a lock pin, a lock body and a linkage locking mechanism, the lock body is a main body of the device, the linkage locking mechanism is installed in the lock body, the lock pin can be inserted into a conical through hole in the center of the lock body to realize positioning and drive the linkage locking mechanism to operate and then be locked by the linkage locking mechanism. Accordingto the technical scheme, the movement characteristics and self-locking characteristics of the linkage locking mechanism are utilized to realize automatic positioning and fast and stable locking without relying on electrical control, and the applicability is higher; and the lock pin can be connected with various tools and fixtures, and the versatility is better.

The invention provides a lever type lifting, cleaning and removing device for a top material plate in constructional engineering. The lever type lifting, cleaning and removing device comprises a base, an inner pushing frame, a lifting table, a telescopic driving part, moving wheels, a directional guide rod, an upper positioning table, a driving part, a plate lifting part, a lower transmission shaft and double eccentric wheels; four lifting columns are fixedly connected to the upper surface of the base through welding, and the lifting columns are perpendicular to the upper surface of the base; the telescopic driving part is arranged in the middle of the upper surface of the base; the bottom face of the inner pushing frame is fixedly connected to an output shaft of the telescopic driving part, and transmission wheels of the inner pushing frame are connected to inner side racks on the lifting columns in a meshed mode; and the outer side faces of lifting rods of the lifting table are connected to the inner sides of the transmission wheels of the inner pushing frame in a meshed mode. According to the equipment, the prying action can be continuously carried out, the multiple formworks can be continuously disassembled, the firmly-connected formworks can be pried for multiple times, disassembling work can be carried out, the function of automatically disassembling the formworks above the house is achieved, and the working efficiency is further improved.