40results about How to "Improve limit stability" patented technology

The invention relates to a two-wheel vehicle positioning jig which comprises a supporting piece and at least one set of positioning frames arranged on the supporting piece. Each positioning frame comprises two first blocking pieces and a vehicle wheel, wherein the two first blocking pieces are arranged oppositely in the side direction, the vehicle wheel is arranged between the two first blocking pieces and used for containing a two-wheel vehicle. The same ends of the two first blocking pieces of each positioning frame form a first outlet of the vehicle wheel, and the same other ends of the two first blocking pieces of each positioning frame form a second outlet of the vehicle wheel. The two-wheel vehicle positioning jig is characterized by further comprising a rod-shaped second blocking piece which is arranged to shield the first outlet, buffering pieces are arranged at the side, at least facing the second outlet, of the second blocking piece, and the thickness of the buffering pieces in the radial direction of the second blocking piece is one fifth to half of the radial thickness of the second blocking piece. Due to the arrangement of the second blocking piece and the buffering pieces, a metal frame positioning a jig body and a vehicle are protected at the same time. A third blocking piece can be arranged at the other ends of the positioning frames to ensure that the vehicle is parked in place, and the two-wheel vehicle positioning jig is not prone to sliding out at a certain slope.

The invention discloses a lifting type power equipment maintenance device and a using method thereof. The lifting type power equipment maintenance device comprises a lifting device, a limiting deviceand an operation platform, wherein the operation platform is installed on the limiting device, the lifting device is installed at the bottom of the limiting device, the limiting device is composed ofU-shaped limiting grooves, a limiting motor and a limiting gear shaft, the number of the U-shaped limiting grooves is two, the two U-shaped limiting grooves each are provided with a stretching rack, two rack limiting pieces are symmetrically arranged at the bottom of the operation platform, openings of the two U-shaped limiting grooves are reversely formed in the operation platform, the stretchingracks on the two U-shaped limiting grooves are located on the two rack limiting pieces, the output end of the limiting motor is vertically arranged downwards, the limiting gear shaft is arranged between the two stretching racks and is in transmission connection with the limiting motor, and the limiting gear shaft is engaged with the two stretching racks. According to the lifting type power equipment overhauling device and the using method thereof, an operator can carry out maintenance operation on transformer equipment conveniently.

The invention provides an extruder for producing fluorinated silicone rubber hose. The extruder comprises an extruder body, the top of the extruder body communicates with a premixing box, a driving motor is erected at the top of the premixing box, an output shaft of the driving motor is connected with a premixing shaft, the premixing shaft penetrates through the premixing box and is arranged at the inner bottom of the premixing box, a guide hopper is arranged in the premixing box. The guide hopper communicates with the extruder body. The driving motor is started, the premixing shaft rotates, and spiral stirring blades and stirring blades are driven to rotate, so that materials are fully dispersed, the premixing shaft rotates to drive a driving wheel to rotate, the driving wheel is connected with a driven wheel through a belt, the driven wheel rotates, then a longitudinal shaft rotates, a beating block is driven to rotate and is in contact with a coordination block. An extrusion column drives an extrusion sliding block to move, so that materials are extruded, and meanwhile, the beating block rotates to be away from the coordination block, a reset spring is reset, and continuous extrusion is achieved. Furthermore, stirring, premixing and extruding can be synchronously carried out, and the working efficiency of the extruder is improved.

The invention belongs to physical training equipment and particularly relates to relay competition training equipment. The equipment comprises a moving device used for simulating running of a bar transferring and receiving person, a swing device arranged on the moving device and a grabbing and releasing device connected with the swinging device. The swinging device is used for simulating shaking and overturning of the grabbing and releasing device in the running process of a rod transferring and receiving person; the grabbing and releasing device comprises a grabbing and releasing body. An accommodating groove for accommodating a relay baton is formed in the grabbing and releasing body; a limiting plate for limiting the position of the relay baton and a driving mechanism for driving the limiting plate to move along the relay baton are arranged in the accommodating groove; rolling wheels are arranged at the bottom of the accommodating groove; and a sensing device for sensing whether therelay baton is in place or not and sensing the position of the relay baton is further arranged in the accommodating groove. According to the invention, the moving device, the swinging device and thegrabbing and releasing device are arranged, partner training athletes of the baton transferring or baton receiving technology in the baton competition can be simulated and trained, and the training equipment can continuously keep a high-level state to be matched with the athletes for baton transferring and receiving training.

The invention discloses a phased array ultrasonic detection device for a small-diameter pipe weld joint and a working method of the phased array ultrasonic detection device, and belongs to the technical field of nondestructive detection of small-diameter pipes. The fixed ring rail is of a two-petal split structure, a compensation block is arranged in a sliding groove in the circumferential direction of the inner side of the fixed ring rail, and the movable scanning sliding block is arranged on the fixed ring rail in a sliding mode; the movable scanning slide block is connected with a size measuring assembly, a probe mounting assembly and a roller encoder; the probe mounting assembly comprises a connecting part and a fixing part, the connecting part is connected with the movable scanning sliding block, the fixing part is connected with the probe clamping device, the probe clamping device is connected with the phased array ultrasonic probe, and the connecting part is connected with the fixing part through a joint mechanism; a roller of the roller encoder is in contact with the outer side of the fixed ring rail; and the phased array ultrasonic probe and the roller encoder are respectively connected to the phased array ultrasonic detector through connecting wires. The phased array ultrasonic detection device is reasonable in structural design, and phased array ultrasonic detectionof butt welds of small-diameter pipes made of various materials and with various pipe diameters can be completed quickly, accurately and stably.

The invention discloses a novel torque limiting valve and a hydraulic-control torque limiting system with the novel torque limiting valve. The novel torque limiting valve and hydraulic-control torque limiting system with the novel torque limiting valve comprises a torque limiting unloading valve and a torque limiting control valve. A control oil port of the torque limiting unloading valve is communicated with a control oil port of the torque limiting control valve. A first oil port of the torque limiting unloading valve and a second oil port of the torque limiting unloading valve are communicated with a first derricking cylinder through a one-way balance valve. A third oil port of the torque limiting unloading valve and a fourth oil port of the torque limiting unloading valve are communicated with a second derricking cylinder through a first bidirectional balance valve. A fifth oil port of the torque limiting unloading valve is communicated with a telescopic cylinder through a second bidirectional balance valve. A first oil port of the torque limiting control valve is communicated with a rodless cavity of the first derricking cylinder, and a second oil port of the torque limiting control valve is communicated with a rod cavity of the first derricking cylinder. The novel torque limiting valve and hydraulic-control torque limiting system with the novel torque limiting valve has the advantages that the unloading part of the torque limiting valve can control five actions; five groups of one-way valves and a hydraulic control one-way valve from a main oil way, the flow capacity is strong, the oil ways are independent, and interference does not exist.

The invention discloses an ultrasonic hardware washing device. The ultrasonic hardware washing device comprises a positioning plate, a workbench, a washing cavity, an ultrasonic transmitter, a limiting assembly, a cleaning assembly and a circulating flushing assembly. Supporting legs are mounted at the positions of the four corners of the bottom end of the positioning plate, and the workbench is mounted at the center position of the upper surface of the positioning plate. As the limiting assembly is arranged, a workpiece can be stably positioned and mounted, and the overall limiting stabilityof the device is improved; meanwhile, as suspended positioning treatment is carried out on the workpiece, the workpiece can be precisely cleaned conveniently in the following process; meanwhile, as the cleaning assembly is arranged, sweeps on the workpiece can be synchronously treated stably through gas; and meanwhile as the circulating flushing assembly is arranged, under opposite effects of twosets of first conveying pipes and second conveying pipes, impurities on the surface of the cleaned workpiece can be synchronously cleaned away stably, the workpiece is subjected to two-way washing treatment in this way, and the overall washing effect is guaranteed.

The invention discloses a flame visual ranging self-adjusting intelligent fire extinguisher which comprises a fire extinguisher body, a handle is arranged on the side wall of the fire extinguisher body, a vent pipe is installed in the fire extinguisher body, a check valve is arranged at the top end of the vent pipe, an air injection hose is arranged on the check valve, an air injection head is arranged on the air injection hose, and an infrared distance meter is arranged on the check valve. Signals detected by the infrared distance meter are transmitted to an electromagnetic valve, and the electromagnetic valve is arranged on the air injection hose. According to the fire extinguisher, the distance of a high-temperature fire pile source can be detected through the infrared distance meter, the gas injection pressure and the injection amount in the fire extinguisher body can be automatically adjusted conveniently, fire extinguishing is conducted by mixing substances in an upper bottle body, the fire extinguishing effect is better, it can be guaranteed that an operator is maintained within a safe fire extinguishing range, and secondary loss is reduced.

The invention belongs to a kind of sports training equipment, and in particular relates to a relay race training equipment, including a treadmill, a column arranged on one side of the treadmill through a linear drive device, a swing device arranged on the column, and a device connected to the swing device. The pick-and-place device, the swing device is used to simulate the shaking and flipping of the pick-and-place device during the running process of the passer and the baton receiver. The pick-and-place device includes a pick-and-place body. The slot is provided with a limit plate for limiting the position of the baton and a driving mechanism for driving the limit plate to move along the baton. The bottom of the storage tank is provided with an active rolling wheel, and the storage tank is also equipped with a sensor for whether the baton is in place and whether the baton is in place. As for the position sensing device, the present invention is provided with a linear drive device, a column, a swing device and a pick-and-place device on one side of the treadmill, and can perform reciprocating training in two training modes of passing the baton or taking the baton while exercising on the treadmill.

The invention discloses an electric vehicle range extender. The electric vehicle range extender comprises an engine and a motor, a crankshaft of the engine is matched with a rotor of the motor in a transmission mode, and the engine comprises a left crankcase and a right crankcase matched with the right side of the left crankcase. The right crankcase is subjected to self deformation to form a containing cavity for mounting an oil pump rotor so that the containing cavity can be used as an oil pump shell; and the left crankcase is integrated with a plurality of stator mounting bosses used for mounting motor stators and a plurality of trigger mounting bosses for mounting triggers, and the left crankcase is provided with at least one limiting device for preventing a chain from falling off. Theelectric vehicle range extender integrates a pump body on the right crankcase, and the structure of the oil pump is simplified; the motor stators can be directly mounted on the left crankcase to enable the structure of the entire crankcase and motor to be compact; and meanwhile, after the left crankcase is integrated with stator mounting seats, the concentricity of the stator and the rotor is higher, and the output performance of the motor is more stable.

The invention discloses a spherical object limiting jig. The spherical object limiting jig is characterized by comprising a main supporting rack and a plurality of secondary supporting racks, wherein the main supporting rack extends in the height direction; the secondary supporting racks are arranged on the main supporting rack; a plurality of accommodating holes which are distributed surrounding the main supporting rack are formed in the secondary supporting racks; and the diameter of an opening of the upper portion of each accommodating hole is greater than that of an opening of the lower portion of the accommodating hole, and is smaller than the maximum section size of a spherical object. The spherical object limiting jig is provided with the secondary supporting racks, each secondary supporting rack is provided with the accommodating holes which are distributed surrounding the main supporting rack, stability and storing and taking convenience are guaranteed, the capacity of the spherical object limiting jig on spherical objects is greatly improved, space is saved, and the manufacturing cost is reduced. Particularly, the diameter of the opening of the upper portion of each accommodating hole is greater than that of the opening of the lower portion of the accommodating hole, so that the spherical object limiting jig is stable when the spherical objects are accommodated in the spherical object limiting jig.

The invention relates to a valve with a purging structure. The valve comprises a valve body, a valve element and a valve element driving device, a flow channel is formed in the valve body and is provided with a communicating end communicating with an equipment tank body and a cut-off opening in sealing fit with the valve element, and the valve element driving device drives the valve element to beclose to or away from the cut-off opening to form cut-off and communication of the flow channel; an area, located between the communicating end and the cut-off opening, of the flow channel serves as acommunicating area, a plurality of purging openings are formed in the area, located in the communicating area, of the flow channel, purging channels extending to the outer side of the valve body fromthe flow channel are formed in the positions, corresponding to the purging openings, of the valve body, and the positions, located on the outer side of the valve body, of the purging channels communicate with an air source. By the adoption of the scheme, the valve with the purging structure can prevent a material static area from being generated between a stirrer and the valve, and therefore themoisture content or uniformity of materials is guaranteed.

The invention discloses a drilling device with the function of preventing a board from generating left-right and front-back displacement. The drilling device comprises an operation table, a board delivering mechanism and a multi-angle drilling mechanism, the multi-angle drilling mechanism can conduct the horizontal reciprocating motion in the length direction of the board delivering mechanism, andboard limiting mechanisms are symmetrically arranged on the outer sides of the two ends of the board delivering mechanism. The drilling device has the high limiting stability on boards, and is more accurate in the oblique drilling processing process.

The invention discloses a stable bearing device for hoisting and transporting a large-span prefabricated high-speed railway bridge pier. The stable bearing device comprises a supporting base plate, a supporting body, a regulation and control mechanism and a locking device. According to the stable bearing device for hoisting and transporting the large-span prefabricated high-speed railway bridge pier, through the arrangement of the supporting base plate, an inverted-T shape sliding groove, an inverted-T shape sliding block, a positioning clamping pin and a positioning circular groove, pier column prefabricated parts can be well supported, in cooperation with the regulating and controlling mechanism and the locking device, supporting of the pier column prefabricated parts can have a good limiting and stabilizing effect, corresponding regulation and control can be carried out according to the actual sizes of the pier column prefabricated parts, good use flexibility is achieved, safety of the pier column prefabricated parts in the conveying work is guaranteed, the quality of the pier column prefabricated parts is guaranteed, and the construction efficiency is improved.

The invention discloses a portable platform mechanism used for industrial digital printing of shoes. A first sliding groove and a second sliding groove are formed in a base. A first sliding wheel is arranged in the first sliding groove. A second sliding wheel is arranged in the second sliding groove. A first sliding plate is mounted on the first sliding wheel. A limiting mechanism used for limiting a shoe mold is mounted on the first sliding plate through a hinge. A first limiting plate is mounted on one side of the first sliding plate. A second piston is mounted on the first limiting plate. Asecond piston shaft is mounted on the second piston. A second limiting plate is mounted on the second piston shaft. A first buffer plate is mounted on the second limiting plate. The second limiting plate is mounted on the second sliding wheel. A third piston is mounted on the second limiting plate. A third piston shaft is mounted on the third piston. A third limiting plate is mounted on the thirdpiston shaft. A second buffer plate is mounted on the third limiting plate. By adoption of the portable platform mechanism, the shoe printing quality and efficiency can be effectively improved.

The invention discloses an abutting supporting type wide-application-range secondary supporting device for a bridge support, the abutting supporting type wide-application-range secondary supporting device comprises a butt joint handle, a supporting block, a fixing rod, a connecting piece, a supporting rod and a hook piece, the outer side of the butt joint handle is fixedly connected with a threaded rod, and the outer end of the butt joint handle is provided with the supporting block in a nested mode; the outer end of the supporting block is connected with a fixed rod in a welded manner; and the outer ends of the supporting blocks are connected with fixing rods in a welded mode, the outer ends of the threaded rods are provided with butt joint blocks in a threaded mode, the outer sides of the butt joint blocks are fixedly connected with guide rods, the outer sides of the guide rods are provided with mounting blocks in a nested mode, and the upper ends of the mounting blocks are connectedwith the outer sides of the fixing rods. According to the abutting supporting type wide-application-range secondary supporting device for the bridge support, a user only needs to hold the threaded rod by hand to rotate, the abutting supporting type secondary supporting device can stably cooperate with the fixing rod to drive the butt joint block to conduct position adjusting work outwards, and then the abutting piece installed at the outer end of the abutting supporting type secondary supporting device in a nested mode moves outwards accordingly; and self-adaptive abutting and supporting workis carried out until the inner end of the object is contacted.

The invention discloses a building formwork flushing device, and relates to the technical field of building formwork cleaning equipment. The device comprises a feeding mechanism, a brushing mechanism,a shaking cleaning mechanism and a discharging mechanism, wherein the feeding mechanism, the brushing mechanism, the shaking cleaning mechanism and the discharging mechanism are sequentially arranged, the shaking cleaning mechanism is composed of a mounting frame, a conveying mechanism, limiting adjusting mechanisms and a shaking mechanism, a gap is formed in the middle of the mounting frame, thetwo limiting adjusting mechanisms are both arranged in the mounting frame, the limiting ends of the two limiting adjusting mechanisms are oppositely arranged, the conveying mechanism is arranged in the mounting frame and located at the bottoms of the two limiting adjusting mechanisms, and the shaking mechanism is arranged at the side end of the conveying mechanism. According to the device, formworks can be shaken and cleaned through the shaking and cleaning mechanism, so that dirt is shaken off, meanwhile, adhered sewage can be shaken off, and reuse is facilitated.

The invention relates to the technical field of motor detection, and provides a fixing tool for a motor stalling test. The fixing tool comprises a positioning base and a clamping mechanism; the positioning base is provided with an accommodating cavity for accommodating the clamping mechanism; the clamping mechanism comprises a lead screw which is hinged to the inner wall of the containing cavity and can rotate around the central axis of the lead screw, and two clamping arm assemblies which are arranged on the lead screw in a sleeving mode and are oppositely arranged. When the lead screw rotates around the shaft clockwise, the two clamping arm assemblies move oppositely in the containing cavity so as to apply bidirectional acting force to the rotor part of the motor to achieve the locking purpose. When the lead screw rotates around the shaft anticlockwise, the two clamping arm assemblies move oppositely in the containing cavity, and therefore the rotor part is unlocked. In conclusion, the fixing tool can apply acting force to the rotor part of the motor from two opposite directions, the centering efficiency of the rotor part of the motor is improved, and meanwhile, the stability of limiting the rotor part of the motor through bidirectional stress is higher.

The invention discloses an embedded collector which comprises a collection box and a collector body, a power assembly is installed in the collection box, movable sleeve columns are installed in the collection box, the two movable sleeve columns are sleeved with movable sleeve blocks, the two movable sleeve blocks are jointly connected with a collection connecting base through a connecting rod, and the collector body penetrates through a collection through hole in the collection box and is arranged in a free sliding manner. A power motor is started, a driving gear rotates, a driven gear is driven to rotate, a rotating shaft is driven to rotate, so that a thread is driven to rotate, a screw block is driven to move, the collection connecting base is driven to move, the collector body moves in a collection bayonet, free collection of the device is facilitated, embedding for protection is facilitated, during collection, the collector is exposed out of the device for information collection.

The invention relates to a pressure gauge dial plate production method, and relates to the technical field of pressure gauge production, and the method comprises the following steps: S1, carrying out plate-making printing on an aluminum plate through a UV printer, and enabling the surface of the aluminum plate to form a dial plate print; s2, the aluminum plate is carried to a positioning tool, and the aluminum plate is fixed through the positioning tool; s3, identifying the position of a dial plate print through a laser cutting machine, and cutting the aluminum plate through the laser cutting machine to obtain a sheet dial plate; s4, collecting the finished dial plate; and S5, leftover materials are collected. The aluminum plate is cut through the laser cutting machine, the cutting operation of a cutter machine and the punching operation of a punching machine are omitted, the aluminum plate does not need to be carried for multiple times, the workload of production personnel can be reduced, and the production efficiency can be improved.

The invention provides a vehicle door limiter. The limiter comprises a base, a limiting arm and elastic pieces, and a through hole allowing the limiting arm to penetrate through is formed in the base;each elastic piece comprises an elastic panel in the middle and fixing ends at the two ends, the elastic pieces are fixed on the base through the fixing ends, the elastic panels are arranged on the side face of the limiting arm, and the plate faces of the elastic panels face the side of a limiting point of the limiting arm; sliding blocks are arranged on the elastic pieces, and a guide rail perpendicular to the moving direction of the limiting arm is arranged on the base; the sliding blocks and the guide rail are matched to form a guide rail and sliding block mechanism; rolling wheels are arranged on the sliding blocks, and the rolling wheels are arranged close to the side of the limiting point of the limiting arm; and the rolling wheels protrude out of the surfaces of the sliding blockstowards one side of the limiting arm, and the rotating axis direction of the rolling wheels is perpendicular to the axis direction of the through hole. According to the scheme, the weight is low, thecost is low, the space is saved, the friction loss is small, abnormal sounds are not prone to be generated, and the limiting stability is high.

The invention provides a stamping device suitable for machining of different sizes and used for automobile parts. A base is installed on the inner side of a stamping machine, a transmission mechanism capable of achieving automatic limiting is arranged on the inner side of the base, the transmission mechanism comprises a pressing block, first air bags, a support, a pull rope and a rotating shaft, the pressing block slides on the inner side of the base, the first air bags stretch out and draw back on the two sides of the lower end of the pressing block, the support slides at the lower end of the pressing block, the pull rope rotates on the two sides of the lower end of the support, the rotating shaft rotates on the inner side of the pull rope, the first air bags are arranged in an oval shape, and the height of the first air bags is 4-10 cm. A bearing sequentially drives a connecting rod to swing, so that a gear and a tooth piece are rotationally embedded, and the gear drives a clamping ring to swing at the same time; under limitation by a track, the clamping ring can drive a lantern ring to slide horizontally, so that the lantern ring can drive second air bags to slide horizontally through a connecting frame, the second air bags can limit the two sides of a die after sliding, and the stamping device can limit the die according to the size of the die.

The invention relates to an automatic baffle pressing type steel belt cooling material conveyor. The conveyor is characterized in that an automatic baffle pressing system is additionally arranged at the discharging end of an existing material conveyor, wherein the automatic baffle pressing system comprises left and right automatic baffle pressing devices which have an automatic gap compensation function and can prevent particle products from leaking to the two sides of a steel belt through a gap, a baffle inter-connecting strut beam with a baffle limiting function reinforcing function and an anti-overflow cover plate having a function of preventing outward splashing of particle products during advancing and falling of the particle products. It is ensured that the conditions of leftward andrightward leaking and forward splashing of particle products and pollution caused by dust to environment are avoided from the structure, the recovery rate of the products is improved, a large amountof resource waste is avoided, the workload and the use cost of daily maintenance are reduced, the structure is simple, scientific and reasonable, the work is continuous and reliable, the stability isstrong, the use is convenient, and the using requirements for continuous, reliable, efficient, low-cost operation and environmental protection of an automatic flow operation system can be fully met, and practicability is quite high.

The invention discloses a street lamp stable to install. The street lamp comprises a lamp post, a lamp arm is arranged on the lamp post, and a lamp holder is arranged on the lamp arm. A mounting plateis arranged below the lamp post, an embedded part embedded into the ground is arranged below the mounting plate, and the embedded part is arranged in a groove formed in the ground. The groove is filled with concrete through pouring, and a containing groove is formed in the groove. The containing groove comprises a limiting section and a reinforcing section, the two opposite side faces of the limiting section are obliquely arranged, and a positioning plate and a limiting plate which are connected are arranged below the mounting plate. The lower end of the positioning plate is slidably connected to the limiting plate, the limiting plate comprises two branch plates of the same structure, the two side faces of each branch plate are obliquely arranged, and a push plate is arranged between thebranch plates. A screw rod is arranged at the upper end of the push plate, a screw hole is formed in the mounting plate, and the screw rod is in threaded connection with the screw hole. The limiting plate is arranged below the mounting plate and matched with a preset limiting section of the embedded part, so that the contact area between the lamp pole and the embedded part is increased, and the limiting stability of the mounted lamp pole is enhanced.