127results about How to "Fast reset" patented technology

The invention discloses a pelvis CT three-dimensional reconstruction image postprocessing method based on a coordinate system and belongs to the medical image processing field. The method comprises the following steps of 101) collecting patient pelvis CT data; collecting pre-operation pelvis two-dimensional CT case data of a patient; 102) establishing a three-dimensional case model; using the case data, through three-dimensional reconstruction, acquiring a three-dimensional pelvis model of a case; 103) establishing the coordinate system in the three-dimensional pelvis model of the case; 104) acquiring a distance shift and a rotation shift of a pelvic fracture; and establishing a mathematic model in the coordinate system in the step 103), and accurately calculating distance shifts and rotation shifts of a fracture portion projected on X, Y and Z axes. By using the method, an orthopedist can conveniently, visually and accurately know a shift mode and a degree of the pelvis fracture of the patient and can accurately guide intraoperative reset for the patient.

The invention belongs to the technical field of multistage treatment of sewage, and particularly relates to a multifunctional sewage purification device. The multifunctional sewage purification devicecomprises a stand and a cleaning barrel, wherein a water feeding pipe and a water discharging pipe are arranged on the cleaning barrel; a first valve is arranged on the water feeding pipe; a filter plate is arranged in the cleaning barrel; a piston cylinder is further fixedly arranged on the side wall of the cleaning barrel; a piece of oil filter cloth is arranged at a connection joint of the water discharging pipe and the cleaning barrel; a resistance wire is arranged in the oil filter cloth; a flexible oil discharging pipe is arranged below the oil filter cloth, and is connected with an oiltank; a second valve is arranged on the flexible oil discharging pipe; a first spring is connected between the oil tank and the stand; a first switch, a second switch and a third switch are arrangedon the stand; the oil tank is connected with the oil discharging pipe; a third valve is arranged on the oil discharging pipe; the inner wall of the water discharging pipe is connected with a turbine in a rotatable manner; one side of the turbine is connected with a swing rod in a rotatable manner; the other side of the turbine is connected with a cam. The multifunctional sewage purification devicecan perform multistage treatment on the sewage; furthermore, in a treatment process, blockage of the water feeding pipe by sediment is avoided; the multifunctional sewage purification device is mostly applied to treatment of the sewage.

Balance chamber supercharged piston fast reposition air cannon comprises an air storage tank, an inlet pipe communicated with the air storage tank and a two-way valve used for controlling air entering in the air storage tank, a piston barrel, a piston, a piston barrel end plate and a piston type sealed exhaust control device consisting of a pumping chamber and an offsetting spring in the piston barrel are arranged on the air storage tank, the bottom surface of the piston is contacted with the nozzle of an outlet pipe in sealing way, and a countercurrent hole communicated with the pumping chamber and the air storage tank is arranged on the side wall of the piston. The invention is characterized in that a leak-off airway tube controlled by a two position two-way electromagnetic valve is arranged on the end plate of the piston barrel to communicate with the pumping chamber and the external environment, the piston is a cylindrical enclosed structure and a hole which is used for leak-off airway tube to pass is arranged on the bottom plate of the piston. The invention has the advantages that the pressure and the impact force putting on the piston and the offsetting spring can be largely reduced, the ring-snapping can be prevented, thus prolonging the service life of the equipments, and petty materials can be prevented from dropping in the air storage tank from the outlet pipe, thus ensuring the using effect of the equipment.

A hydraulic buffer for a gun comprises a cylinder body, a front plug and a rear plug, wherein the end part of a piston is mounted in the cylinder body in a way that a piston rod of the piston passes through the front plug; a valve is mounted in the end part of the piston, is limited through a hole retainer ring and can perform front-back relative movement in the length direction of the cylinder body in the end part of the piston; a stop pin, a steel ball and a screw are arranged on the rear plug; a return spring is arranged between the end part of the piston and the rear plug; a liquid flow hole is formed at the root segment of the piston rod; and a center liquid flow hole is formed in the center of the valve, and lateral liquid flow holes are formed on the two sides of the valve. The hydraulic buffer has the advantages of small size, compact and simple structure, convenience in installation, high reset speed and good buffering effect, and can meet buffering requirements of different guns through designing different technical parameters.

The invention discloses a stamping die. The stamping die comprises a lower die seat, an upper die seat, a first guide rod, a second guide rod, a first elastic piece, a second elastic piece, a stamping head and a lower die plate. A first guide column hole and a second guide column hole are formed in the upper surface of the lower die seat. The upper die seat is movably arranged on the lower die seat between an initial position and a die assembly position. The first guide rod and the second guide rod are arranged on the upper die seat, and at the die assembly position, the first guide rod is matched in the first guide column hole, and the second guide rod is matched in the second guide column hole. The first elastic piece and the second elastic piece are respectively connected with the upper die seat and the lower die seat, and the first elastic piece and the second elastic piece are in the compression state at the die assembly position. The stamping head is arranged on the lower surface of the upper die seat. The lower die plate is arranged on the upper surface of the lower die seat and is provided with a concave die. The stamping die has the advantages of being high in reset speed, high in production efficiency and the like.

The invention discloses a medical spraying type medicine bottle and belongs to the technical field of spraying dosing containers. The medical spraying type medicine bottle comprises a bottle body, a bottle cap, a liquid pumping mechanism, a hand pressing gland, a sucker and a liquid outlet mechanism. The liquid pumping mechanism comprises a piston pipe sleeve, a ball valve, a first spring, a piston pipe and a second spring, the upper end of the piston pipe sleeve is fixed with the central position of the bottle cap, the middle of the piston pipe sleeve forms a first narrow indentation step, the lower portion of the piston pipe sleeve forms a second narrow indentation step, the ball valve is arranged in a piston pipe sleeve cavity of the piston pipe sleeve, the middle of the piston pipe forms a piston, the first spring is arranged on the lower portion of the piston pipe sleeve cavity, the second spring is sleeved at the lower end of the piston pipe, and the central position of the hand pressing gland forms a piston pipe matching hole. The liquid outlet mechanism comprises a spraying pipe base and a spraying pipe, a liquid through hole is formed in the spraying pipe base, a flow diversion pipe joint is arranged on one side of the spraying pipe base, a flange is formed on the flow diversion pipe joint, the flow diversion pipe joint forms a flow diversion pipe cavity, and the sucker is in matched connection with the lower end of the piston pipe sleeve. The liquid pumping effect is improved, the liquid spraying speed is improved, medicine liquid waste is avoided, and the structure is simple.

The invention discloses a hybrid coupling and an assembling method thereof. The coupling comprises a driving disc and a driven disc. The driving disc comprises a connecting cylinder, back iron blocks,first magnetic rings and second magnetic rings. The driven disc comprises a connecting sleeve, a back iron disc, a back iron sleeve and third magnetic rings. The connecting cylinder is fixedly connected with a driving shaft. The back iron block is embedded into the connecting cylinder. The first magnetic rings are fixed to the connecting cylinder and cover the back iron blocks. The second magnetic rings are fixed to the end face of the connecting cylinder and connected with the back iron blocks. The connecting sleeve is fixedly connected with a driven shaft. An annular groove is formed in theconnecting sleeve. The back iron sleeve sleeves the connecting sleeve and is positioned in the annular groove. The connecting sleeve sleeves the connecting cylinder, so that the driving shaft and thedriven shaft are coaxially arranged. The third magnetic rings are distributed on the side, facing the second magnetic ring, of the back iron disc. The magnetic poles of every two adjacent third magnetic rings are arranged oppositely. The magnetic field intensity of the coupling is improved; the grooves and magnetic leakage amount of the coupling are reduced; collaboration is improved; the assembling difficulty of the coupling is reduced; a torque is increased through vortexes formed through speed changing; and combination is accelerated.

The invention discloses an electric kettle capable of automatically shutting off steam channel, which comprises a kettle body and a switch button communicated with the inside of the kettle body through a steam channel component. The steam channel component comprises a steam pipe and a steam box; the two ends of the steam pipe are respectively communicated with the inside of the kettle body and the inside of the steam box; a steam sensing switch crosses in the steam box; a bimetallic strip is arranged at one side of the steam sensing switch, and a movable rod and a pair of electric contacts are arranged at the other side of the steam sensing switch; the movable rod is connected with the tail end of the switch button; the middle of the switch button is hinged on the steam box; a piston device is arranged joint between the steam pipe and the steam box; a connection rod is connected on the piston device; the tail end of the connection rod is hinged on the steam box, and the middle of the connection rod is sleeved on the switch button. The invention can power off and shut off the steam channel at the same time; and the steam sensing switch has high reset speed and is convenient to clean as the steam only forms a small amount of condensed water to overflow after condensed.

The invention discloses a folding device for a game bed protection rod. The folding device comprises a shell, a first swing clamping sheet, a first movable sheet, a first swing sheet, a second swing clamping sheet, a second movable sheet, a second swing sheet, a mechanism capable of realizing resetting and locking, a pull rope and two supporting sheets, wherein the two supporting sheets are fixed to the shell through pin shafts; the first swing clamping sheet is movably connected with one end of a left protection rod and is movably connected with the first movable sheet; the lower part of the other end of the first movable sheet is connected with the bottom end of the first swing sheet; the other end of the first swing sheet movably sleeves a movable rod; the second swing clamping sheet is movably connected with one end of a right protection rod and is movably connected with the second movable sheet; the lower part of the other end of the second movable sheet is connected with the bottom end of the second swing sheet; the other end of the second swing sheet movably sleeves the same movable rod. The folding device disclosed by the invention has the advantages that a magnet is used for adsorbing for locking position, and unlocking is quick, more flexible and more convenient; a folding structure is more stable after being unfolded.

The invention belongs to the technical field of photoelectric detection and particularly relates to a fast active quenching circuit applied to a single photon avalanche diode. The fast active quenching circuit comprises a single photon avalanche diode (SPAD) and a high-voltage terminal (HVDD), wherein the cathode of the SPAD is connected to the HVDD to generate an avalanche current pulse. The fast active quenching circuit further comprises: a quenching reset unit connected to the SPAD for quenching and resetting the SPAD and generating a pulse voltage signal according to the avalanche current pulse; and a power supply unit (VDD) for supplying power to the quenching reset unit. The fast active quenching circuit has the advantages of extremely fast quenching and resetting speed and simple structure.

The present invention provides a universal wind-tunnel balance body axis static correction rack reset method, and relates to the technical field of wind-tunnel balance static correction. The method comprises the following steps of: the step (1),overlapping a balance coordinate system of a balance of a pre-established earth axis coordinate system, and marking as a mechanical zero; the step (2), performing increment drive of a first motor, a second motor, a third motor, a fourth motor, a fifth motor and a sixth motor, and employing six motor coded disc readings and six laser displacement sensorreadings; the step (3), calculating a transition matrix A of the coded disc readings and the sensor readings; the step (4), calculating a target coded disc reading; and the step (5), according to theobtained target coded disc reading through calculation, controlling the 6 motors to reset in order until the readings of the six displacement sensors to return the reading prior to weight loading. Theuniversal wind-tunnel balance body axis static correction rack reset method is suitable for reset systems in a serial mode, a parallel mode or a combination mode of series and parallel, is fast in reset speed, simple and convenient to operate and adapt reset systems with different modes.

The invention discloses a non-contact rocker sensor, a control device and a processing system and method, and relates to the technical field of novel sensors. The non-contact rocker sensor comprises a rocker assembly and a magnetic induction IC assembly. The rocker assembly is used for generating swing in a first direction and a second direction which are perpendicular to each other, swing of a first magnetic field generated by a first magnet swinging in the first direction and swing of a second magnetic field generated by a second magnet swinging in the second direction. The magnetic induction IC assembly is used for generating and outputting a first electric signal corresponding to the change of the distance between the first magnet and the first magnetic induction element caused by the swing of the first magnet and a second electric signal corresponding to the change of the distance between the second magnet and the second magnetic induction element caused by the swing of the second magnet. The non-contact rocker sensor has the advantages of long service life, high control precision and small size.

An automobile independent suspension Includes frame, A main reduction is arranged at that middle position of the low surface of the vehicle frame, the upper surface of the final drive is fixedly connected with the lower surface of the vehicle frame, the outer wall of the final drive is uniformly wrapped with a buffer layer, A bearing seat is symmetrically arrange at that middle positions of the left and right side of the outer wall of the final drive, one end of the bearing seat away from the outer wall of the final drive is rotatably connected with a vehicle axle, the left and right ends of the lower surface of the vehicle frame are provided with shock absorbers, the top end of the shock absorber is rotatably connected with the frame, The bottom end of the shock absorber is rotatably connected with the vehicle axle, a first auxiliary shock absorber is symmetrically arranged on the upper surface of the vehicle axle and close to the bearing seat, and a second auxiliary shock absorber isarranged between the first auxiliary shock absorber and the shock absorber. The automobile independent suspension relates to the technical field of automobile independent suspension. The automobile independent suspension is used for the independent suspension of automobiles, has the advantages of good shock absorption effect, dispersion of lateral forces, and prolongation of the service life of the independent suspension and the main reduction gear box.

The invention provides an electronic accelerator pedal assembly and belongs to the technical field of car parts. According to the electronic accelerator pedal assembly, the problems that an existing electronic accelerator pedal assembly is complex in structure, not resistant to abrasion, poor in transmission effect and low in sensitivity are solved. The electronic accelerator pedal assembly comprises a base, and the base is composed of the components of, by weight, 1-1.3% of C, 0.8-1% of Si, 0.7-0.8% of Mn, 0.02-0.03% of P, 0.1-0.2% of S, 16-20% of Cr, 0.3-0.4% of Ti, 0.3-0.5% of Nb, 0.5-0.6%of Mo, 0.1-0.2% of Ce, 0.1-0.2% of La and the balance Fe. The base further comprises a co-diffusion coating, is internally provided with an electronic induction part and is further provided with a pedal shaft. The pedal shaft is sleeved with a rotary shaft sleeve, a pedal is assembled on the rotary shaft sleeve, and the base comprises a bottom plate. A cylindrical spring seat is arranged on the bottom plate, a reset spring is fixedly mounted in the spring seat, the reset spring is arranged perpendicular to the bottom plate, and the other end of the reset spring is fixed to the rotary shaft sleeve. The electronic accelerator pedal assembly has the advantages of being simple in structure and high in sensitivity.

The invention discloses coagulation treatment equipment. The coagulation treatment equipment comprises a stirring barrel, wherein a feeding opening is fixedly connected to the side wall of the stirring barrel; a driving motor is fixedly installed on the stirring barrel; a rotating shaft is fixedly installed at the output end of the driving motor; a stirring rod is fixedly connected to the bottom of the rotating shaft; a plurality of vibration springs are fixedly connected to the inner wall of the stirring barrel; and one end of each vibration spring is fixedly connected with an extrusion cylinder, multiple vibration cavities are formed in the inner wall of the extrusion cylinder and located at one end of the vibration spring, one end of each vibration cavity is fixedly connected with an extrusion plate, multiple transmission mechanisms are fixedly arranged at the bottom of the extrusion plate, and limiting mechanisms are fixedly arranged among the transmission mechanisms. Compared with the prior art, through rotation of the stirring rod, materials can be gradually coagulated into blocks, the surface of the extrusion cylinders can be extruded, the vibration springs on the side walls of the extrusion cylinders can be extruded, counter-acting force can be generated on the coagulated materials, and material coagulation treatment efficiency can be improved.

The invention discloses a fracture reduction lock nail device. A guide rod is fixedly connected to a base; the guide rod is slidably connected with a first driving part and a second driving part; theupper part of the first driving part is fixedly connected with a rotating supporting part; a moving clamping part is rotationally connected with the rotating supporting part; the lower part of the moving clamping part is connected with a half gear in a sliding manner; the lower part of the half gear is meshed with a rack which moves horizontally; a rotation axis of the half gear and a rotation axis between the moving clamping part and the rotating supporting part are located on the same axis; a middle part which moves vertically is arranged at the upper part of the base; a first connecting rodis arranged between the middle part and the second driving part; the upper part of the first connecting rod is rotationally connected with the middle part; the lower end of the first connecting rod is rotationally connected with the second driving part; and a second connecting rod is arranged between the middle part and the rack. A driving adjustment mode of screw and nut matching is adopted, sothat adjustment is accurate, reduction of a fracture site is accurate and reliable, pain of a patient is relieved, the reduction speed is improved, and the pain of the patient is effectively relieved.

The invention belongs to the technical field of vehicle shock absorption, and particularly relates to an impact acceleration sensitive valve. The impact acceleration sensitive valve is installed on abottom valve between a working cavity and a compensation cavity of the shock absorber, and adopts a spring mass system composed of a compressed spring and a slide block for sensing impact loads on a vehicle from the pavement, and thus the purpose of judging the working condition is achieved; a hole between the slide block and a valve rod is utilized for achieving communication of a high-pressure cavity of the shock absorber, unloading of the high-pressure cavity of the shock absorber can be achieved when the shock absorber meets intense impact of the pavement, so that impact transmitted to a vehicle body by the shock absorber is reduced, and the requirement of different working conditions for damping is met. According to the impact acceleration sensitive valve, a favorable condition is created for symmetric design of damping of the shock absorber. Compression damping is increased, stretching damping is lowered, the improvement of the posture of a vehicle is facilitated, a suspension isrestored in time, and the smoothness and handling stability of the vehicle are comprehensively improved. The impact acceleration sense valve is compact in structure, high in manufacturability and controllable in cost.

A miniature hydraulic spreader consists of an oil cylinder, a quick connector, a wedge block and left and right spreading arms, wherein the oil cylinder is connected with a power source through the quick connector, the piston end of the oil cylinder is connected with the wedge block, the left and right spreading arms are connected with the surface of the oil cylinder through a rotary shaft, the oil cylinder is a single-acting oil cylinder and is reset through a built-in reset spring, the left and right spreading arms are of thin duck mouth structures, and a reset spring is arranged between theleft and right spreading arms. The miniature hydraulic spreader adopts the single-acting oil cylinder, does not need a reversing device and is simple in structure, small in size and suitable for rescue work in a narrow space. The spreading arms adopt the thin duck mouth design, and a wedging gap is smaller. The spreading arm reset spring is arranged between the two spreading arms, the spreading arms are automatically reset to a closing state, the resetting speed of a piston is improved, and the working efficiency is improved.

The invention discloses a reset device of an injection molding machine, which relates to the technical field of machinery manufacturing of plastic. The reset device comprises a stripper plate between a fixed plate and a moving die plate; a driving cylinder on the fixed plate is connected with the stripper plate; a push plate is arranged between the moving die plate and a moving die; ejector pins, which penetrate into moving die guide holes, are arranged on one side of the push plate which is connected with the stripper plate by ejector rods; a plurality of threaded holes are formed in the stripper plate; a section of thread is formed on one end of each ejector rod which is connected with the stripper plate by the thread. Compared with the prior art, the reset device has the advantages that the ejector rods are in threaded connection with the stripper plate which is pulled to move to reset towards the fixed plate by a piston rod of the driving cylinder when the die is closed, the ejector rods and the push plate are driven together to move to reset by the stripper plate, and the ejector pins moves to reset along with the push plate, so that the collision between the ejector pins and a fixed die is avoided. The reset device has the advantages of balance and accuracy in reset of the ejector pins, high reset speed and high production efficiency.

The invention discloses an air compressor achieving floating supporting through springs. The air compressor comprises a supporting box and a cylinder. Bases are fixedly installed inside the lower endof the supporting box. A first spring sleeve is fixedly installed on the outer side of the upper end of the corresponding base. Reinforcing nuts are arranged on the inner surface of the front end of the first spring sleeve, and the floating spring is movably installed inside the upper end of the first spring sleeve. A reset rod is arranged at the position, close to one side of the first spring sleeve, on the inner side of the lower end of the supporting box. An upper supporting base is fixedly installed on the outer side of the upper end of the reset rod. The reset spring is movably installedoutside the lower end of the reset rod. According to the air compressor achieving floating supporting through the springs, the springs can be prevented from resetting while floating supporting is achieved through the springs, supporting can be conducted with the help of crankshafts when the floating supporting strength is not enough, the springs can be effectively prevented from shaking in the gascompression process, more labor can be saved when a piston moves in the cylinder, and compressed gas can also be filtered.

The invention belongs to the field of automobile parts maintenance, and discloses a cleaning device for automobile parts. The cleaning device for the automobile parts comprises a machine frame, and acleaning part, conveying parts and a clamping part are arranged on the machine frame. The cleaning part comprises a rotating shaft and a rotating motor for driving the rotating shaft. A plurality of cleaning rods are connected to the rotating shaft in a circumferential direction and located under a thread section. A cleaning brush is connected to the one end, away from a spring section, of a second horizontal section. A piston barrel is arranged above the rotating shaft and located on the machine frame, and the end face, near the rotating shaft, of the piston barrel is sealed. The lower end ofa piston rod is rotatably connected to the top end of the rotating shaft. The clamping part comprises clamping plates arranged on both sides of the rotating shaft, and magnets are connected to the clamping plates. The two conveying parts are arranged and are separately connected to both ends of a connecting rod, and the two conveying parts are symmetrically arranged relative to the rotating shaft. Each of the conveying parts comprises a first rack, a second rack and a first gear, wherein the first rack is connected to the connecting rod, the second rack is located above the clamping plates, and the first gear meshes with the first rack and the second rack. According to the scheme, the cleaning requirement of the inner walls of the tubular automobile parts with elliptical end faces is met.

The invention provides a magnetic piano keyboard assembly. The magnetic piano keyboard assembly comprises a piano stand, a piano stand fixing base, iron blocks, a magnet, a magnet sleeve, piano keys, a rotation shaft, a key board, pressure columns and silicon keys, wherein the piano keys comprise white keys and black keys arranged side by side; two ends of the piano stand and the piano keys are arranged to be a C end and a D end; the magnet sleeve is arranged on the piano stand and is positioned at the C end, the magnet is arranged inside the magnet sleeve, the iron blocks are arranged on the piano keys and positioned at the C end of the piano keys, and the iron blocks are positioned just above the magnet; the piano keys are rotatably arranged on the key board through the rotation shaft and form a lever strucutre; the upper ends of the pressure columns are arranged in the middles of the piano keys, and the lower ends of the pressure columns lean against the upper surfaces of the silicon keys; and the silicon keys are arranged in the middles of the key board. According to the technical scheme, the piano assembly is light in integral weight, the very good key effect and feeling that a heavy hammer knocks a keyboard are achieved, the effect of knocking the piano keys with the force gradually reduced is achieved, the resetting effect of the piano keys is good, and the resetting speed is high.

The invention provides mechatronic building mold stamping equipment. The mechatronic building mold stamping equipment comprises a stamping base, guide posts, guide springs, a stamping plate and a hydraulic unit, wherein four corners of the top of the stamping base are fixedly connected with the symmetrical guide posts; the guide springs are arranged at the top of the guide posts in an embedded manner; the top of the stamping base is fixedly connected with the stamping plate through the guide posts which penetrate the stamping plate; the top middle of the stamping plate is fixedly connected with the hydraulic unit through nuts, the hydraulic unit is perpendicular to the stamping plate; the stamping base further comprises stamping templates which are embedded in the inner side surface of thestamping base, and the stamping templates are distributed uniformly. The mechatronic building mold stamping equipment is stable in structure and has high practicability, and diversity and efficiencyof stamping are increased greatly.

The invention discloses a highway subgrade maintenance pavement crack pouring device which comprises a base and a stone dust collecting cavity arranged at the front end of the bottom of the base, wherein two damping adjusting rods are rotationally installed at the rear end of the interior of the stone dust collecting cavity, and a first rotating roller is installed between the lower ends of the damping adjusting rods; a plurality of groups of first brushes are arranged outside the first rotating roller; a protective shell which is arranged on the stone dust collecting cavity, wherein a dust collecting cover is fixedly mounted at the upper end of one side in the stone dust collecting cavity; a positioning groove which is formed in the rear end of the stone dust collecting cavity; and a stirring barrel which is arranged in the middle of the upper end of the base, wherein a leveling device is installed outside the glue injection head on the glue injection device, and telescopic plates are installed on the two sides of the interior of the leveling device in a sliding mode. In the repairing process of the pavement gap, the pouring sealant can be accurately and compactly injected into the pavement gap along the notch direction of the gap, and the gap can be cleaned.

The invention provides a piston rod reset mechanism of a jack and the jack. The piston rod reset mechanism is used for resetting a piston rod of the jack and comprises an air source supply device, an unloading control mechanism and a controllable one-way valve, the piston rod is provided with a piston head, the jack comprises a hydraulic cylinder, the piston head is located in the hydraulic cylinder and divides the hydraulic cylinder into a cavity with the piston rod and a cavity without the piston rod, and an oil outlet oil passage is arranged in the cavity without the piston rod; the unloading control mechanism is connected to the air source supply device; the controllable one-way valve is arranged on the oil outlet oil passage and connected with the unloading control mechanism; the cavity with the piston rod is connected with the air source supply device or the unloading control mechanism. When the piston rod reset mechanism of the jack and the jack are used, the piston rod is pushed to conduct resetting through an air pressure mode, the resetting speed of the piston rod is fast, and the stability of the resetting is good; meanwhile, a return air passage is arranged inside an oil tank and combined with the oil tank to be a whole, so that the overall size of the hydraulic jack is small, the appearance is attractive, the operation is convenient, and the usage requirements of the hydraulic jack are met for people.

The invention discloses a transferring and overturning device used for overturning and transferring products from a high transmission line body to a lower transmission line body. The transferring and overturning device comprises a frame, wherein the frame is rotatably connected with a rotating shaft; a clamping and holding assembly used for clamping and holding the products; a driving motor capable of driving the rotating shaft to rotate so as to drive the clamping and holding assembly to transfer and overturn the products from the high transmission line body to the lower transmission line body is arranged on the frame; a telescopic cylinder capable of driving the rotating shaft to rotate so as to reduce load of the driving motor is also arranged on the frame. Through the transferring and overturning device, the clamping and holding assembly is firstly used for clamping and holding the products at the tail end of the high transmission line body; then the rotating shaft is driven to rotate so as to drive the clamping and holding assembly to move on the lower transmission line body; the telescopic cylinder capable of driving the rotating shaft to rotate is also arranged on the frame; the load of the driving motor can be reduced; the requirement can be met by using low-power motor; the production cost and the maintenance cost can be reduced; the safety of the device can be improved.

The invention discloses a starting program control device and a control method of a turbofan. The starting program control device comprises a power circuit, an electromagnetic relay set and a time relay set, wherein the power circuit is connected with the electromagnetic relay set and the time relay set; the time relay set comprises multiple time relays; the electromagnetic relay set comprises multiple electromagnetic relays; the multiple time relays are correspondingly connected with the multiple electromagnetic relays and used for controlling switch-on or switch-off of corresponding electromagnetic relays at set time; and the multiple electromagnetic relays are respectively used for being connected to corresponding starting accessories of the turbofan. The starting program control deviceis small in size, light and low in manufacturing cost, the timing accuracy of the time relays is high, and thus the whole control device and the control method are high in control precision and highin reset and response speeds, an engine can control starting, cold working and false starting of the turbofan according to set programs and logic, and performance indexes meet the requirements.

The invention relates to the technical field of waste clearing, in particular to a surface leveling mechanism for irregular plastic. The surface leveling mechanism comprises a workbench, and further comprises a controller, a flattening device and a clearing device; a treating box is fixedly arranged at the top of the workbench, and the flattening device is arranged at the top of the inner side ofthe treating box so as to level the surface of the irregular plastic; the flattening device comprises a pressing plate, a driving assembly and two sets of downward pressing assemblies; the clearing device is arranged at the bottom of the inner side of the treating box so as to clear residue after surface leveling of the irregular plastic; and the clearing device comprises a rotating plate, an angle adjustment assembly and a discharge assembly, and the driving assembly, the angle adjustment assembly and the discharge assembly are all electrically connected with the controller. According to thesurface leveling mechanism for the irregular plastic and a using method, the stability is good, the squeeze speed is high, self-clearing is convenient, and meanwhile the operation condition can be conveniently observed in the leveling process.

The invention relates to a storage cabinet, in particular to a liftable storage cabinet. The technical problem of how to design the liftable storage cabinet which is firm in installation, not prone todamage and disengagement, capable of saving time and labor and high in working efficiency is solved. The liftable storage cabinet comprises: a base provided with a mounting cabinet; a storage cabinetwhich is mounted on the mounting cabinet; glass doors which are symmetrically mounted on the mounting cabinet in a hinged manner; and a lifting device which is arranged on the storage cabinet and isused for placing articles. The glass door is opened by pulling the glass door to swing outwards, then the magnetic handle is pulled to enable the reel to rotate reversely, the reel rotates reversely to drive the storage plates to move upwards in sequence through the steel wire rope, then the magnetic handle moves backwards to be inserted into the clamping groove, the storage plates are limited, and then a proper number of articles are placed on the storage plates. Installation is firm, and objects are not prone to falling off.