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58results about How to "Prevent sudden fall" patented technology

Electric power steering apparatus

An electric power steering apparatus drives a motor to generate a steering assist force according to a steering torque and includes an output circuit for supplying the motor with electric power from at least one of a battery and an auxiliary power supply. The electric power steering apparatus has a control circuit which at or after detection of a breakdown of the battery, determines a length of time to the end of steering assist (decreasing time t1) based on the amount of energy stored in the auxiliary power supplies and which takes the determined length of time to perform output decreasing control to gradually decrease the upper limit of power supplied for the steering assist to practically zero according to a constant gradient. Thus is provided an electric power steering apparatus which is adapted to prevent a sudden fall of the steering assist force in the event of a battery breakdown while effectively utilizing the available stored energy.
Owner:JTEKT CORP

Eccentric-load preventing hydraulic system of hydraulic-roll-cutting-type metal plate shearing machine

The invention relates to the technical field of hydraulic-roll-cutting-type metal plate shearing machines, in particular to an eccentric-load preventing hydraulic system of a hydraulic-roll-cutting-type metal plate shearing machine. The eccentric-load preventing hydraulic system comprises a first servo hydraulic cylinder loop, a second servo hydraulic cylinder loop and an eccentric-load preventingloop which are hinged to a rack and an upper tool rest correspondingly. In the rolling shearing process, the first servo hydraulic cylinder loop and the second servo hydraulic cylinder loop are usedfor ensuring the position precision of the tool rest and meanwhile conducting pressure precise control and timely adjustment on rodless cavities of servo hydraulic cylinders; and the eccentric-load preventing loop is used for balancing the weight of the upper tool rest, so that the eccentric-load force borne by a piston rod is reduced, the service life of the servo hydraulic cylinders is prolonged, meanwhile, sudden falling of the upper tool rest due to leakage of the servo hydraulic cylinder hydraulic system or pipeline breakage can be prevented, the tool rest is effectively protected againstdamage, and personal safety is effectively protected. The eccentric-load preventing hydraulic system has the beneficial effects that the rolling shearing process is extremely stable by using the eccentric-load preventing loop, and the characteristics of simple structure, high practicability and easy implementing are achieved.
Owner:TAIYUAN UNIV OF TECH

Crane hanging scaffold stall self-locking mechanism based on cable hoisting

InactiveCN112010186AStall self-locking reachesPrevent sudden fallSafety gearStructural engineeringCentrifugal force
The invention relates to the technical field of cable installation, and discloses a crane hanging scaffold stall self-locking mechanism based on cable hoisting, the crane hanging scaffold stall self-locking mechanism comprises a base, the top of the base is fixedly connected with a first fixed column, the top of the first fixed column is movably connected with a first rotating disc, and the interior of the first rotating disc is fixedly connected with a first rotating shaft. For the crane hanging scaffold stall self-locking mechanism based on cable hoisting, when a stall phenomenon occurs in the hoisting process, the first metal ball makes contact with the negative electrode contact at the moment, magnetism is changed, the cross rod attracts the first metal ball at the moment, the second metal ball makes contact with the ball at the moment, the electro-rheological body is powered on, and therefore the effect that the electro-rheological body is changed into a solid state from a liquidstate is achieved. At the moment, a limiting column is clamped in a first groove under the action of centrifugal force and an electro-rheological body, a second rotating disc stops rotating at the moment, a first rotating shaft further stops rotating, and therefore the effects of stall self-locking of the hanging scaffold and sudden falling prevention are achieved.
Owner:湖州南浔上福线缆有限公司

Mechanism for preventing injury by stall of hoisting vehicle during rail hoisting

The invention relates to the technical field of railway laying machines, and discloses a mechanism for preventing injury by stall of a hoisting vehicle during rail hoisting. The mechanism comprises afixed disc, a limiting groove is formed inside the fixed disc, a rotating shaft is movably connected to the interior of the fixed disc, and a fixing nail is fixedly connected to the front surface of the rotating shaft. According to the mechanism for preventing the injury by stall of the hoisting vehicle during rail hoisting, when the hoisting device stalls on site, a first magnet makes contact with a second negative pole contact under the action of centrifugal force at the moment, so that magnetism is changed to enable a second magnet to attract the first magnet; and a first negative pole contact makes contact with a positive pole contact under the action of a sliding block at the moment, so that the current in an electrorheological body is conducted, then the effect that the electrorheological body is changed into a solid from a liquid is achieved, a push rod drives a limiting head to move into the limiting groove, a rotating rod is clamped at the moment, furthermore, the rotating shaft stops rotating, and then the effects of stall self-locking and sudden falling prevention of the hoisting device are achieved.
Owner:林日国

Spool mechanism for textile machinery

The invention discloses a spool mechanism for textile machinery. The spool mechanism comprises a base, wherein fixed columns are fixedly connected with the two sides of the top of the base; and a shell is fixedly connected with the tops of the fixed columns. According to the spool mechanism, through cooperative application of the base, the fixed columns, the shell, a pull ring, a movable rod, a first spring, a movable plate, a stabilizing mechanism, a limiting plate, a connecting rod, a fixture block, a spool body, a protective plate, a clamping groove, a movable sleeve, a rotary knob, a threaded rod, a threaded hole, a threaded groove, a fixed plate, a groove and a support mechanism, the problems that the existing spool mechanism for textile machinery is inconvenient to dismantle, plentyof manpower and material resources are consumed, the labor intensity of a worker is increased, application is affected, and during the dismantling process, the protective effect is poor to cause slipof the spool and damage to a textile and inconvenience to a user are solved. The spool mechanism has the advantages of being convenient to dismantle and excellent in protective effect during the dismantling process and deserves popularization.
Owner:宁波市鄞州智伴信息科技有限公司

Wall-attached bearing for novel lifting operation platform for building

The application provides a wall-attached bearing for a novel lifting operation platform for a building, and relates to the technical field of construction equipment. The wall-attached bearing for thenovel lifting operation platform for the building comprises a bearing main body, an anti-toppling device and an anti-falling assembly, wherein the anti-toppling device is arranged at the first end ofthe bearing main body and used for cooperating with lifting of the operation platform and limiting the horizontal movement of the operation platform; the anti-falling assembly is arranged at the firstend of the bearing main body to prevent the operation platform from falling suddenly. The anti-falling device is arranged on the bearing main body to limit the horizontal movement of the operation platform, so that the operation platform does not swing horizontally when rises, falls or is blown by wind, and the anti-falling effect is effectively achieved; the anti-falling assembly is arranged onthe bearing main body, so that the operation platform is effectively prevented from falling suddenly in accidents, a safe anti-falling role is effectively played, and personal safety of construction personnel on the operation platform is guaranteed.
Owner:湖南中科富海建筑科技有限公司

Stable transmission machine

The invention relates to a stable transmission machine which comprises a delivery mechanism, a front castor vehicle frame and a rear castor vehicle frame. A hydraulic jack is arranged on the front castor vehicle frame; the upper end part of the hydraulic jack is fixedly connected with the middle part of a beam; both end parts of the beam are hinged with a rack of the delivery mechanism; connecting rods are hinged between the front castor vehicle frame and two sides of the delivery mechanism; transverse shaft sleeves are respectively sleeved at both end parts of a rear castor sleeve shaft and two front castor sleeve shafts; the outer walls of the transverse shaft sleeves are fixedly connected with a longitudinal castor frame; universal wheels are arranged at the lower sides of both front and rear ends of the longitudinal castor frame; and the front castor vehicle frame is also provided with a hydraulic oil supply system for controlling to lift and descend the hydraulic jack. The stable transmission machine is provided with a 8-wheel balanced system capable of carrying out universal balancing and a hydraulic lifting system, and thus, the stable transmission machine not only has strong self-balancing capacity, but also has the advantages of simple structure and long service life.
Owner:山东雪莱粮仓智能科技有限公司

Electric power steering apparatus

An electric power steering apparatus drives a motor to generate a steering assist force according to a steering torque and includes an output circuit for supplying the motor with electric power from at least one of a battery and an auxiliary power supply. The electric power steering apparatus has a control circuit which at or after detection of a breakdown of the battery, determines a length of time to the end of steering assist (decreasing time t1) based on the amount of energy stored in the auxiliary power supplies and which takes the determined length of time to perform output decreasing control to gradually decrease the upper limit of power supplied for the steering assist to practically zero according to a constant gradient. Thus is provided an electric power steering apparatus which is adapted to prevent a sudden fall of the steering assist force in the event of a battery breakdown while effectively utilizing the available stored energy.
Owner:JTEKT CORP

Polishing device of stainless steel pipe

The invention discloses a polishing device of a stainless steel pipe. The device comprises a polishing and grinding mechanism, the polishing and grinding mechanism comprises a shell body and an innercavity, wherein movable bases are arranged at the position, close to the two sides, of the lower end face of the shell body respectively, and a plurality of rolling wheels are movably installed in thegrooves in the lower end faces of the movable bases in parallel at equal intervals, protective shells are arranged on the outer surfaces of the rolling wheels, and hydraulic telescopic rods are arranged at the upper ends of the protective shells; and turning joints are arranged at the joints of the hydraulic telescopic rods and the protective shells, three adjusting hand wheels are transversely arranged on the front end face of the shell body at equal intervals, and a feeding hole is formed in one side of the shell body. In conclusion, the polishing device of the stainless steel pipe has thebeneficial effects that the movable bases, orienteering rotating shafts and guide bases are adopted, the stability of equipment during working can be further ensured while convenience is brought to carrying of the equipment, a turnover cover can be prevented from falling down suddenly, the polishing efficiency of the equipment is improved, the structure is simple, and the use is convenient.
Owner:德阳市旌龙再生资源有限公司

Manual back type shifting machine

The invention discloses a manual back type shifting machine, belongs to the technical field of medical equipment, solves the problems that in the prior art, a shifting machine can only meet the requirement for short-distance shifting of a patient, the requirement for a shifting site is high, and the shifting machine is seriously affected by spatial positions, and has the beneficial effects that the lifting function is achieved through the lever principle, and supporting of nursing personnel is omitted. According to the specific scheme, the manual back type shifting machine comprises a base, a moving mechanism is installed at the bottom of the base, a support is installed on the base, leg leaning mechanisms are fixed to the two sides of the base, a supporting mechanism is installed on one side of the support, a set angle is formed between the supporting mechanism and the support, and a buffering mechanism is arranged in the supporting mechanism. A first section of the lever mechanism is rotationally connected with the top of the supporting mechanism through a first connecting rod mechanism, one end of the first section supports the chest leaning mechanism, forking supporting mechanisms for supporting the oxters of a patient are installed on the two sides of the chest leaning mechanism, one end of a second section of the lever mechanism is rotationally connected with the first section, and the other end of the second section is bent and provided with a movable handle; a head protection mechanism is fixed to one side of the movable handle.
Owner:CRRC SHANDONG CO LTD

Car lift capable of being braked

The invention relates to a car lift capable of being braked. The car lift comprises a bottom box. Lifting columns are installed on the bottom box in a sliding mode. A lifting table is fixedly connected to the lifting columns, a kidney-shaped groove is formed at the lower ends of the lifting columns, a box base is installed in the bottom box, a round rotary wheel is movably installed in the center of the box base, a cylinder is welded to the round rotary wheel, and a mooring rope is installed on the round rotary wheel. A horizontal sliding frame is installed on the right side of the bottom box, a sliding block is connected with the outward extending end of the mooring rope, a movable pulley is connected at the upper end of the sliding block, the movable pulley is sleeved with a rope belt, and a cylinder is connected with the rope belt. The horizontal sliding frame is provided with square grooves in the horizontal direction, springs are installed at the bottoms of the square grooves, and the springs are connected with limiting blocks. The car lift is high in automation degree, and can automatically drive cars to ascend. When the cars ascend, through cooperation of the horizontal sliding frame and the limiting blocks, the horizontal sliding frame can be braked when a hydraulic cylinder or cylinder fails, the effect of preventing cars from falling suddenly is achieved, and safety is high.
Owner:HEFEI YIHANG MACHINERY TECH CO LTD

Stall self-locking fishing net device mechanism

The invention relates to the technical field of daily sundries, and discloses a stall self-locking fishing net device mechanism. The stall self-locking fishing net device mechanism comprises a fixed disc, wherein fixed chambers are fixedly connected with and arranged in the fixed disc; and a rotating disc is movably connected with and arranged in the fixed disc. According to the stall self-lockingfishing net device mechanism, after a device stalls, an electromagnet moves to a negative pole contact under the action of centrifugal force, while an S pole magnet can attract the electromagnet at the moment, and a first contact and a second contact are further in contact, so a circuit between the first contact and the second contact is connected, and an electrorheological fluid is further changed into a solid from a liquid; and thus, the effect that the electrorheological fluid is changed from the liquid to the solid is achieved. After the device stalls, the electrorheological fluid is changed into the solid from the liquid, so convex blocks cannot move, fixed blocks are further clamped; the fixed blocks are fixedly connected with and arranged on the rotating disc, so the rotating disccannot rotate at the moment, and the rotating shaft stops rotating; and thus, the effects of stall self-locking and sudden falling prevention of the device are achieved.
Owner:广州正宏电子商务有限公司

Safety shaking frame for constructional engineering

The invention relates to a safety shaking frame for constructional engineering. The safety shaking frame comprises a support frame and a revolving drum. The revolving drum is connected with a driving mechanism. A safety rope and a safety hook are arranged on the revolving drum. First gears are arranged at two ends of the revolving drum. A transmission shaft is arranged on the lower side of the revolving drum. Second gears are arranged at two ends of the transmission shaft. Each first gear is connected with the corresponding second gear via a chain. A worm gear is arranged in the middle of the transmission shaft. A worm is arranged on the lower side of the worm gear. A revolving handle is arranged at one end of the worm. A lug is arranged at the other end of the worm. A non-return pin is arranged on the lateral side of the lug and mounted on the upper side of a support table of a mounting seat, and one end of the non-return pin is connected with a third hinge of the mounting set. The safety shaking frame for constructional engineering has the advantages that according to the technical scheme, the non-return pin cooperates with the lug, the worm is prevented from revolving clockwise, falling of a mud bucket is prevented, and safety accidents are avoided.
Owner:JIANGSU WANHE COATING MACHINE CO LTD

Safety cradle for construction engineering

The invention relates to a safety cradle for construction engineering. The safety cradle for the construction engineering comprises a supporting frame, and a rotating drum which is connected with a driving mechanism, wherein a safety rope and a safety hook are arranged on the rotating drum; first gears are arranged at two ends of the rotating drum; a transmission shaft of which two ends are provided with second gears is arranged at the lower side of the rotating drum; the first gears and the second gears are connected through chains; a worm gear is arranged in the middle part of the transmission shaft, and a worm is arranged at the lower side of the worm gear; one end of the worm is provided with a rotating handle while the other end of the worm is provided with a lug; a non-return pin is arranged beside the lug and is mounted at the upper side of the supporting table board of a mounting seat; one end of the non-return pin is connected with the mounting seat in a third hinging manner. According to the abovementioned technical scheme, the safety cradle for the construction engineering has the advantage that the non-return pin and the lug are matched with each other to prevent the worm from clockwise rotating as well as preventing a concrete barrel from sudden falling off, thus avoiding safety accident.
Owner:HUBEI BAOLAI CONSTR CO LTD

Cargo hoisting rigging with lubricating effect

The invention discloses a cargo hoisting rigging with a lubricating effect. The cargo hoisting rigging comprises a main body, wherein support pillars are symmetrically arranged at the upper end of themain body; pin holes horizontally penetrate through the inner walls of the support pillars; a connecting pin is grafted between the two pin holes; limiting holes which are vertical to the pin holes are formed in the upper and lower sides of the pin holes and in the inner walls of the support pillars; limiting pins are inserted into the inner walls of the limiting holes; the inner wall of the mainbody is uniformly encircled by a plurality of springs; an elastic net is fixedly connected with one end of each spring, away from the main body; a sponge is arranged between the main body and the elastic net; an oil tank is arranged in the main body; a plurality of through holes are uniformly connected around the inner wall of the oil tank. The cargo hoisting rigging has a simple structure and iseasy for operation; the rigging and the steel wire rope can be lubricated; the rigging is prevented from being rusted, the abrasion is reduced and the service life of the rigging is prolonged; the measure of multiple buffering acting forces is taken, the rigging is prevented from breaking, the use safety of the rigging is guaranteed and the cargo hoisting rigging is suitable of wide application.
Owner:泰州亚东链条有限公司

Pavilion type lifting garage

The invention discloses a pavilion type lifting garage, comprising a ground pit, wherein a lifting device and a vehicle storing frame are arranged in the ground pit, a top cover is arranged on the top of the vehicle storing frame, a safety hook is arranged in the ground pit, an overlapping hook is arranged on the lifting device at a position corresponding to an extending position of the safety hook, a waterproof platform is arranged around the ground pit, ramp ways are arranged in front and at back of the waterproof platform, the top is parallel and level to the upper surface of the waterproof platform when the vehicle storing frame completely falls down, four stand columns are arranged on the top cover, a slideway is arranged at the inner side face of each stand column, a rectangular pavilion top is arranged on the stand columns, a roller shutter driving device is arranged in the pavilion top, the staggered roller shutters are respectively and correspondingly arranged between stand columns in the pavilion top, and the roller shutters are driven by the roller shutter driving device and move up and down synchronously along the slideways. The pavilion type lifting garage has the advantages of simple structure, low cost, low energy consumption, safety in use, good waterproof effect, no need of drainage, and convenience for operation, and can be used for reasonably utilizing an aboveground space at the garage position, increasing the number of the garage and playing a role in beautifying ambient landscape.
Owner:喀左县环境保护科学技术服务中心

Supporting device facilitating automobile tire dismounting

The invention discloses a supporting device facilitating automobile tire dismounting. The supporting device comprises a base, a first motor, an adjusting cylinder and clamping plates, wherein four universal wheels are arranged on the lower side of the base, three sliding grooves are formed in the vertical part of the base, a second transmission rod is slidably connected in each sliding groove, theright end of each second transmission rod is fixedly connected with a lead screw, the right clamping plates are fixedly connected with fixing bases, the lead screws are in threaded connection with moving clamping plates, the moving clamping plates are in sliding connection with supporting plates, the lead screws and the second transmission rods are rotationally connected with the fixing bases through rolling bearings, and the right parts of the fixing bases are connected with the adjusting cylinder through two swing rods. According to the supporting device facilitating automobile tire dismounting, the swing rods are pushed to swing by telescopic rods in the adjusting cylinder, so that the supporting plates are driven to clamp and support wheels, wrench heads are driven to be inserted intothe bolts of the wheels while the moving clamping plates move so as to fix and support the wheels, the second motor is driven to disassemble the bolts on the wheel tires, and the efficiency is improved.
Owner:HUANGHE S & T COLLEGE

Safe transmission construction elevator

The invention provides a safe transmission construction elevator. The elevator comprises a lift car, a manual control device, guide rails, racks, a power device, a control system module, and a monitoring system module. The power device provides lifting power for the lift car, the manual control device controls the power device through the system control module, and controls the lift car to lift, the control system module and the monitoring system module are arranged on the top of the lift car and are connected, a fixing frame is included and fixes the power device to the rear portion of the lift car, the two sides of the fixing frame are each provided with a rotation arc wheel, the two sides of each arc wheel are each provided with one guide rail and one rack connected with the arc wheel,one sides of the racks are connected with the arc wheels, one sides of the racks are connected with the power device, the power device is further provided with two brake devices located on the outer side of the fixing frame, and the power device of a one-way transmission structure of a one-way overrun clutch. The construction elevator is long in service life and good in safety.
Owner:王晗毓

Horizontal jack with safe self-locking function

The invention discloses a horizontal jack with a safe self-locking function. The horizontal jack comprises a jack base, a hydraulic assembly, a boom, a tray, a movable rod, a self-locking device, front wheels and rear wheels 8, wherein one end of the boom is hinged to the jack base, a hydraulic assembly capable of supporting the boom to move is arranged in the jack base, the movable rod capable ofcontrolling the hydraulic assembly is arranged at the end, close to the hinge point of the jack base and the boom, of the hydraulic assembly, the movable rod is detachably connected with the hydraulic assembly, the tray is arranged on the boom, the self-locking device is arranged between the jack base and the boom, and the self-locking device is arranged between the ends, away from the movable rod, of the jack base and the boom. According to the horizontal jack with the safe self-locking function, the self-locking device is arranged between the jack base and the boom, so that the boom of thejack is self-locked when the jack is used for jacking up, the boom is prevented from falling suddenly, and the safety is improved.
Owner:嘉兴金诚汽配科技股份有限公司

Rapid-clamping rocking handle and lifting device with same

The invention relates to a rapid-clamping rocking handle and a lifting device with the rapid-clamping rocking handle. The rapid-clamping rocking handle for lifting comprises a force transmission handle and an inverse-rotation-prevention end cover, wherein the force transmission handle is used for driving a lifting input shaft to rotate, and the inverse-rotation-prevention end cover is fixedly connected with a lifting device body. An inverse-rotation-prevention pin is arranged on the force transmission handle and moves in the direction perpendicular to the rotation axis of the force transmission handle in a guiding mode, a stopping groove is formed in the inverse-rotation-prevention end cover and used for inserting the inverse-rotation-prevention pin in the radial direction of the inverse-rotation-prevention end cover so that the stopping groove can be matched with the inverse-rotation-prevention pin in the circumferential direction in a stopping mode, and the inverse-rotation-prevention pin has a locking position and an unlocking position in the guiding moving travel of the inverse-rotation-prevention pin, wherein the locking position is inserted into the stopping groove, and the unlocking position withdraws from the stopping groove. The force transmission handle is provided with an elastic resetting mechanism used for exerting acting force on the inverse-rotation-prevention pin to move the inverse-rotation-prevention pin toward the unlocking position, and is further provided with an unlocking device connected with the inverse-rotation-prevention pin in a transmission mode. The unlocking device is provided with an operation position and a releasing position, wherein the operation position corresponds to the unlocking position of the inverse-rotation-prevention pin, and the releasing position corresponds to the locking position of the inverse-rotation-prevention pin. The rocking handle can conveniently achieve locking, and it is avoided that because the rocking handle inversely rotates, heavy objects suddenly fall off.
Owner:凯迈(洛阳)测控有限公司

Deep foundation excavation system and technological method thereof

The invention relates to a deep foundation excavation system and a technological method thereof in the technical field of deep foundation construction. The system part comprises the following parts ofa conveyor tower erected in deep foundation; a rock crusher arranged at the feeding position at the bottom end of the conveyor tower; unmanned control-based unmanned excavator and unmanned mining card that are both located in deep foundation; an earth-rock separator set at the upper end of the conveyor tower; a conveyor belt assembly; an unmanned earth-rock truck located directly below the lowestend of the conveyor belt assembly when receiving material and located on the ground outside the pit; and a self-locking lifting mechanism, the upper end of which is adjustably connected to the conveyor belt assembly. During the conveying, the earth and rock are transported to the earth-rock separator in the direction by using the conveyor tower, transported to the conveyor belt assembly then, andtransported to the earth-rock truck through the conveyor belt assembly, thereby enabling the entire construction process to achieve unmanned operation and achieving the effect of efficient transportation.
Owner:TONGJI UNIV +1

Hanging basket type intelligent non-avoidance parking device

The invention relates to the technical field of parking equipment, and discloses a hanging basket type intelligent non-avoidance parking device. The hanging basket type intelligent non-avoidance parking device comprises a parking platform, and hanging walls are movably installed at both ends of the upper surface of the parking platform. Parking platform connecting plates are fixedly installed on the side surfaces of the bottom ends of the hanging walls, both sides of the top ends of the hanging walls are fixedly connected with pulling-blocking rods II through second pulling-blocking rod II connecting plates, and the sides, away from the hanging walls, of the pulling-blocking rods II are fixedly connected with the top ends of rotating walls through first pulling-blocking rod II connecting plates. Pulling-blocking rod III connecting plates are fixedly connected to the middle portions of the rotating walls, two pulling-blocking rod III connecting plates are fixedly connected through pulling-blocking rods III, and the side surfaces of the pulling-blocking rod III connecting plates are connected with the top ends of hydraulic cylinders. According to the hanging basket type intelligent non-avoidance parking device, parking spaces can be flexibly arranged in the air according to needs of customers and site situations, an independent parking space and multiple parking spaces can be arranged, the hanging basket type intelligent non-avoidance parking is convenient and rapid to operate and reliable in performance, space is saved and the expandability is high, and the more parking, themore economy, and the less space.
Owner:杨钊

Balance valve mounting seat, hydraulic oil cylinder and engineering machinery

The invention relates to a balance valve mounting seat, a hydraulic oil cylinder and engineering machinery. The balance valve mounting seat comprises a seat body enabling a balance valve (1) to be fixed on an oil cylinder tube (2), wherein a first through hole (5) which is used for enabling the oil cylinder tube (2) to communicate with the balance valve (1) is formed in the seat body; and a valve opening is formed in the first through hole (5), and an automatic closing device (3) which is provided with an opening position and a closing position is arranged in the first through hole (5), so that the through hole (5) is optionally opened or closed. Through the technical scheme disclosed by the invention, control for opening and closing an oil path between an oil cylinder and the balance valve can be realized, so that the function of closing and locking the oil cylinder can be realized under the condition that the balance valve drops out, or the balance valve fails; accident that an arm frame suddenly falls down because hydraulic oil in the hydraulic oil cylinder is leaked can be avoided, so that the safety of a working site is improved; and besides, the balance valve mounting seat is simple in structure, low in cost and suitable for industrial application.
Owner:河北雷萨重型工程机械有限责任公司

Pavilion type lifting garage

The invention discloses a pavilion type lifting garage, comprising a ground pit, wherein a lifting device and a vehicle storing frame are arranged in the ground pit, a top cover is arranged on the top of the vehicle storing frame, a safety hook is arranged in the ground pit, an overlapping hook is arranged on the lifting device at a position corresponding to an extending position of the safety hook, a waterproof platform is arranged around the ground pit, ramp ways are arranged in front and at back of the waterproof platform, the top is parallel and level to the upper surface of the waterproof platform when the vehicle storing frame completely falls down, four stand columns are arranged on the top cover, a slideway is arranged at the inner side face of each stand column, a rectangular pavilion top is arranged on the stand columns, a roller shutter driving device is arranged in the pavilion top, the staggered roller shutters are respectively and correspondingly arranged between stand columns in the pavilion top, and the roller shutters are driven by the roller shutter driving device and move up and down synchronously along the slideways. The pavilion type lifting garage has the advantages of simple structure, low cost, low energy consumption, safety in use, good waterproof effect, no need of drainage, and convenience for operation, and can be used for reasonably utilizing an aboveground space at the garage position, increasing the number of the garage and playing a role in beautifying ambient landscape.
Owner:喀左县环境保护科学技术服务中心

Automatic discharge mechanism for graphene production

The invention discloses an automatic discharge mechanism for graphene production. The automatic discharge mechanism comprises an external frame, a receiving trough and a conveying belt, wherein a baseis arranged on the left side in the external frame; a hydraulic cylinder is fixed above the base; a lifting rod is mounted above the hydraulic cylinder; a lifting plate is fixed above the lifting rod; the receiving trough is mounted above the lifting plate; a discharge port is formed above the external frame; a fixing frame is mounted on the right side in the external frame; the conveying belt isarranged above the fixing frame; rotation shafts are mounted on the two sides in the conveying belt; and convex blocks are fixed on the two sides of the lifting plate. According to the automatic discharge mechanism for the graphene production, a lifting structure is formed by the lifting plate and the base through the lifting rod and the hydraulic cylinder; the lifting rod can operate through thehydraulic cylinder to adjust height of the lifting plate so as to allow the receiving trough above the lifting plate to receive a graphene material; and the lifting plate is 8cm in thickness and hasgood load bearing performance.
Owner:王俐

Safety protection method for carrying manipulator and carrying manipulator

PendingCN111590642APrevent abrupt changes in air pressurePrevent sudden fallProgramme-controlled manipulatorControl engineeringManipulator
The invention discloses a safety protection method for a carrying manipulator and the carrying manipulator. A first normally-closed two-way valve is arranged between a multiple position five-way valveand a first air cavity, and a second normally-closed two-way valve is arranged between the multiple position five-way valve and a second air cavity; when normal electrifying and ventilation are carried out, the first normally-closed two-way valve and the second normally-closed two-way valve are both in an electrified open state, a driving rod of a dual-functional air cylinder ascends and descendsvertically under the control of a switch of the multiple position five-way valve; and when accident power off or venting cessation occurs, the first normally-closed two-way valve and the second normally-closed two-way valve are both in a power-off closed state, so that a closed cavity body is formed between the first normally-closed two-way valve, the dual-functional air cylinder and the second normally-closed two-way valve so as to prevent abrupt change of air pressure in the first air cavity and the second air cavity, and the sudden drop of the carrying manipulator carrying a workpiece is avoided. According to the safety protection method for the carrying manipulator and the carrying manipulator, the hidden safety hazard of heavy object falling due to accident power off or venting cessation is eliminated, and a reliable guarantee is provided for safe carrying of the workpiece.
Owner:JIANGSU JCA ELECTRONICS TECH CO LTD

Flexible Bionic Whole Spine Intelligent Physiotherapy Machine

The invention discloses a flexible bionic whole-vertebra intelligent physiotherapy machine which comprises a base, a supporting mechanism, a lifting mechanism, a bed body and a swinging mechanism, wherein the bed body comprises joint brackets, joint plates and push rods; the joint brackets are mounted on a central shaft in a sleeving manner and connected in sequence; the joint plates and the push rods are fixed on the joint brackets; the swinging mechanism comprises a swinging head, an ankle fixing plate, a rocker arm, a gear, a sector gear and a stepping motor; the swinging head is mounted on a support shaft; the ankle fixing plate is mounted above the swinging head; the gear, the sector gear and the stepping motor are fixed on the swinging head; the rocker arm is mounted in the gear in a sleeving manner. The physiotherapy machine can realize two treatment modes, namely the intelligent type swinging and the intelligent type shaking, and the handstand natural gravity drawing is combined, so that the curative effect can be achieved jointly; a sensor can be used for monitoring the movement situation of a patient at any time to adjust the speed and amplitude of the swinging head, so that the intelligent control treatment can be implemented, the treatment process is safe and reliable, and the curative effect is excellent.
Owner:郑州喜寿康健康服务有限公司
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