86results about How to "Avoid swinging back and forth" patented technology

The invention discloses a multi-diameter pipe automatic counting device for a centrifugal cast pipe production line, and relates to the technical field of centrifugal cast pipe production. The automatic counting device comprises a multi-diameter pipe flowing platform. A frame body at one side of or on the multi-diameter pipe flowing platform is provided with the automatic counting device. The automatic counting device comprises photoelectric sensors, counters and an excessive pipe and shading swing arm. At least 2 photoelectric sensors are provided, and the photoelectric sensors are connected with the counters through data lines; and the excessive pipe and shading swing arm is arranged above the multi-diameter pipe flowing platform, rotates around a fixed shaft, and is provided with a swing arm reset mechanism. The automatic counting device is low in cost, reliable in performance, low in failure rate and convenient to replace, and can carry out specification-different detection and counting based on each specification on each pipe produced by a centrifugal machine.

The invention belongs to the field of medical conveying appliances, and particularly relates to an automatically leveled type multifunctional rescue stretcher. In order to cope with the characteristics of complex locality and various disastrous conditions during the field rescue, the automatically leveled type multifunctional rescue stretcher which mainly comprises a left lifting rod, a right lifting rod both located at the top part, four suspension rods and a stretcher bed located at the bottom is provided. Four rotation pairs composed of the lifting rods, the suspension rods and the stretcher bed encircle to form two isosceles triangle hanger frames; the stretcher bed is automatically leveled when persons climb slope or get down slope by utilizing moment of force generated by the gravities of the ill and wounded persons and the stretcher bed; and the damping stabilization function of the stretcher bed is realized by utilizing a friction force between stabilizing belts and the lifting rods. The lifting rods, the stabilizing belts, the suspension rods and the stretcher bed are connected by pins; and a rescuer can detach the stretcher into two simple stretchers based on the practical need so as to be used for conveying a common ill and wounded person and an ill and wounded person with fracture respectively. As the relatively angles of the stretcher bed and the lifting rods can be locked, the automatically leveled type multifunctional rescue stretcher after being locked can serve as a simple tent, a simple operating table and a double-layer stretcher.

The invention discloses a method for improving a standard shuffled frog leaping algorithm.The method comprises the steps of initializing parameters; calculating the adaptive value of each frog individual, and finding the adaptive value and position of the global optimum frog individual of a frog population; conducting optimum drawdown ranking on the frog population; conducting dividing for obtaining frog sub-populations; finding the positions of the optimum and the worst frog individual of each frog sub-population; conducting updating operation on the position of the worst frog individual of each frog sub-population; calculating the adaptive value of the frog individual with the position updated in each frog sub-population, and finding the global optimum adaptive value and the position of the frog population at this moment; implementing prediction of the global optimum adaptive value of the frog population obtained after iteration is completed next time, and furthermore adjusting the movement step-length variable coefficient dj and skip among steps; judging whether the ending conditions are met or not.By means of the method, the defects that at the later stage, the convergence rate of the standard shuffled frog leaping algorithm is severely lowered, convergence precision is insufficient, and the algorithm is prone to getting into local optimum are overcome.

The present invention discloses an electrical tar precipitator, which comprises a vertical cylinder, a feed box, insulation boxes, a spraying device, a hanging rod, a suspension frame, a honeycomb precipitation pole tube body, corona wires, a gas distribution plate and a convex bottom, wherein the suspension frame is fixedly connected with the upper end of the corona wires, the corona wires present linear vertical overhang states due to gravity, the corona wire lower ends extending out of the honeycomb precipitation pole tube body lower end opening are co-fixed and hanged with an inverted cone-shaped weight balancing overhang cylinder, an inverted cone-shaped chamber is correspondingly arranged inside the inverted cone-shaped weight balancing overhang cylinder, the top end of the inverted cone-shaped weight balancing overhang cylinder is provided with a tar collection port communicated with the inverted cone-shaped chamber, the bottommost portion tip end of the inverted cone-shaped weight balancing overhang cylinder is provided with a tar outflow port communicated with the inverted cone-shaped chamber, the tar collection port is positioned just below the honeycomb precipitation pole tube body, and the orthographic projection region of the tar collection port vertically projecting on the horizontal plane is always positioned within the orthographic projection region contour line of the honeycomb precipitation pole tube body vertically projecting on the horizontal plane along the length direction. According to the electrical tar precipitator, the structure is further simplified, potential possibility of electrical arc generation can be eliminated, and safety is high.

The invention provides a mouse fixing apparatus, wherein the mouse fixing apparatus comprises a fixed plate; a head fixing seat which is arranged on the fixed plate and is formed with a groove which is adaptive to the head of a mouse, wherein a through hole is formed in the top of the groove; two body baffle blocks which are symmetrically arranged on the fixed plate by taking the axis of the groove as a centerline; a binding strap which is configured to wind together the two body baffle blocks, the fixed plate and the mouse between the two body baffle blocks; and a hook which is arranged at the upper end of the fixed plate. By virtue of the head fixing base, the fixed plate, the body baffle blocks and the binding strap, the mouse fixing apparatus disclosed by the invention can be used for simultaneously fixing the head and the body of the mouse, so as to prevent the mouse from moving freely. The mouse fixing apparatus is applicable to a mouse radiation exposure device for carrying out a radiation experiment, so as to improve the efficiency and the quality of the radiation experiment.

This invention provides a crane protective device and a crane. The crane protective device comprises a telescopic mechanism and a protective block. One end of the telescopic mechanism is arranged at a frame of the crane; the other end of the telescopic mechanism is connected with the protective block; and the telescopic mechanism can drive the protective block to move, so that the protective block is contacted with the side surface of a heavy object lifted by the crane. The technical scheme provided by the invention is that the protective block is driven to move through the telescopic mechanism and propped against the heavy object to prevent the heavy object from swinging forward and backward in the driving direction of a rough-terrain crane and avoid the impact wear of the frame due to the heavy object, so as to enhance the structural stability of the frame and the operation stability of the crane, and reduce impact and fatigue damage of a wire rope and a pulley resulted from the swing of the heavy object simultaneously to prolong the service life of the wire rope and the pulley.

The invention discloses a novel stimulating electrode based in-vitro brain slice electrical signal recording device which comprises a brain slice recording slot, a brain slice storage slot, a gas supply device, a perfusing drug-delivery device, a temperature control device, an electrode fixing and operating device, a neural network signal recording device and a dissecting microscope. Two microelectrodes are fixed to the electrode fixing and operating device and are inserted into a feeding groove from a top cover of the brain slice recording slot, the other end of each microelectrode is connected with the neural network signal recording device through a lead, the two microelectrodes are a stimulating microelectrode and a recording microelectrode respectively, and the stimulating microelectrode is an epoxy resin/graphene/nano-copper composite material electrode. The novel stimulating electrode based in-vitro brain slice electrical signal recording device effectively overcomes the defect that an old in-vitro brain slice recording device cannot automatically control the temperature, is provided with a smaller feeding groove, is inconvenient to use and makes records inaccurate and does not efficiently stimulate microelectrodes due to shake caused by various situations.

The invention discloses a comprehensive overhaul platform of a transformer. The platform comprises a platform body, a swing mechanism arranged at the upper portion of the platform body and a walking mechanism arranged at the bottom of the platform body. The left and right sides of the platform are each provided with a groove. A right lifting rod is arranged at the upper portion of the swing mechanism. A right overhaul box is arranged on the top of the right lifting rod. A semi-frame supporting frame is arranged at the upper portion of the swing mechanism. A fixing sleeve is arranged at the end of the semi-frame supporting frame. A cantilever is arranged inside the fixing sleeve in a sliding mode. A left lifting rod is fixedly arranged on the upper surface of the right end of the cantilever. A left overhaul box is arranged on the top of the left lifting rod. A wireless oil temperature data receiving device is arranged on the bottom face of the inner side of the left overhaul box. An air conditioning device is arranged inside an overhaul chamber. An overhaul platform is arranged on the bottom face of the inner side of the right overhaul box. A transverse rod is arranged in the middle of the semi-frame supporting frame. Two auxiliary supporting mechanisms are arranged at the bottom of the transverse rod. The problem of online monitoring of the transformer oil temperature is solved, online cooling and overhauling of the transformer can be performed, overhaul can be performed without disassembling the transformer, and the cost is saved.

The invention discloses an anti-swing mechanism for a crane spreader, which includes a lifting mechanism, a fixed pulley block and a movable pulley block, each trolley is provided with a lifting mechanism, the reel is placed in the center of the trolley, and the center of the trolley frame is placed with a The fixed pulley block, the trolley running mechanism is placed at one end of the trolley frame, and the lifting mechanism is distributed on the four corners of the trolley frame plane. A movable pulley block is installed in the center of the spreader, and the four corners of the spreader are fixed with wire ropes. Ears, the four sides on the back of the sling are provided with hooks for the object to be hoisted, and a steel wire rope is thrown off from the reel on the lifting mechanism respectively, and fixed by the four lifting eyes on the sling body. The invention solves the problem that the crane can effectively prevent the spreader from swinging back and forth only when the crane is running or the trolley is started and stopped. The mechanism has simple structure, low cost and is easy to manufacture.

The invention relates to the technical field of medical treatment instruments, and particularly relates to a cervical traction device. The cervical traction device comprises a shoulder pressing part,a lower jaw bearing part, a caudal cervical supporting part and a power traction mechanism, wherein the shoulder pressing part is connected with the lower jaw bearing part; the shoulder pressing partis positioned under the lower jaw bearing part; the lower jaw bearing part is driven by the power traction mechanism to be moved to ensure that the lower jaw bearing part can do reciprocation motion relative to the shoulder pressing part; and the caudal cervical supporting part is connected with the lower jaw bearing part and is used for fixing the head and neck parts. The cervical traction devicedisclosed by the invention has the advantages that the head and neck parts can be fixed through the caudal cervical supporting part and the lower jaw bearing part, wherein the caudal cervical supporting part and the lower jaw bearing part are connected together, front-back swinging of the head neck parts can be prevented. Meanwhile, the lower jaw bearing part is driven through the power tractionmechanism to be moved, the cervical vertebrae is drawn upwards, and the phenomena that manual adjustment of a tractor is time-consuming and effort-consuming and a traction effect is not obvious are alleviated.

The invention discloses a multifunctional pill dispensing device, which comprises a weight plate and a counterweight base fixed on the ground. Weights are placed on the inner wall of the top of the weight plate, and a hole is opened on the central axis of the outer wall of the top of the counterweight base. a first through hole, and a strut is inserted into the inner wall of the first through hole, a ferrule is welded on the outer wall of the top of the strut, and a rotary hinge is clamped on the inner wall of the ferrule, and a supporting plate is welded on the outer wall of the ferrule top, and A slideway is clamped on the outer wall of the top of the supporting plate, and second through holes are opened on both sides of the outer wall on one side of the slideway. The present invention simulates the whole device as a balance through slideways, brackets and counterweight bases. The operation is simple, and the weight is controllable. The accuracy of the weights will directly affect the accuracy of the weight of the pills. The slideway swings back and forth, the pills flow back to the other side of the slideway, and the electric hinge will automatically turn over when it reaches a certain weight, which makes the operation more convenient and will not cause the weight to fail to meet the standard.

The invention relates to an applicator, in particular to a hand-pressing type applicator. The hand-pressing type applicator aims at achieving the technical purposes that the smearing area is larger, liquid medicine is more uniformly smeared, and air can be filtered. According to the technical scheme, the hand-pressing type applicator comprises a handle rod, a piston, a push rod, a first spring, apressing plate, a first valve, an air suction pipe, a second valve, a medicine bottle, a bottle cap, a second spring, a sprue, a medicine smearing shell and the like. A first cavity and a through holeare formed in the handle rod, the first cavity is located in the right side of the through hole, the first cavity is communicated with the through hole, the piston is slidingly arranged in the firstcavity, the push rod is arranged in the middle of the right side of the piston, the pressing plate is arranged at the right end of the push rod, and the left side of the pressing plate is connected with the first spring. Compared with a cotton swab, the smearing area of a medical sponge is larger, the smearing frequency of people is reduced, repeated smearing is not needed, the workload of smearing staff is relieved, and smearing of people is facilitated.

The invention relates to the technical field of garden equipment and discloses a mobile spraying fan for gardens. The mobile spraying fan comprises spraying equipment; a motor is fixedly installed atthe bottom of an inner cavity of the spraying equipment; a driving wheel fixedly sleeves an output shaft of the motor; a driven wheel is engaged and connected to outside teeth of the driving wheel; driving shafts are fixedly connected to the two sides of the driven wheel respectively; and the two ends of the driving shafts are movably connected with the side surfaces of the inner cavity of the spraying equipment. By adopting the mobile spraying fan for the gardens, through the matching of the motor, the driving wheel and the driven wheel, a positioning gear drives a transmission gear to rotate, so that the spraying equipment can rotate at different angles; the spraying equipment is prevented from spraying on only one straight line during a spraying process, the spraying range is preventedfrom being shortened and the spraying efficiency is prevented from being influenced; and by utilizing the matching of a fixed rod and a joint bearing, the transmission gear is prevented from wagglingback and forth in the spraying equipment during rotation, the rotation of the spraying equipment is prevented from being influenced.

An oriented quantitative arc support roller has the advantages of uniform abrasion of the support roller, and capabilities of reminding the replacing time, prolonging the service life, preventing a conveyor belt from sliding downwards and reducing the safety risk in operation. The oriented quantitative arc support roller is characterized in that the drum body is a round drum with two large-diameter end parts and a small-diameter middle part; the roller generatrix of the drum body is an arc line; an abrasion alarm slot and abrasion indication tables are respectively designed in the middle position and two sides of the drum body; a unidirectional moving mechanism is arranged at one or two sides of the drum body; the unidirectional moving mechanism comprises a counter-rotation prevention device and a ratchet wheel arranged on a shaft by a key slot; the returning stopping lock tail end of the counter-rotation prevention device is contacted with the ratchet wheel. The oriented quantitative arc support roller has the advantages of prolonging the service life of the support roller and a belt, preventing the left-right swing of the belt and the deviation of the belt, reducing the risk that the belt is torn and the support roller is abraded through, preventing the swing back and forth of the belt, improving the production stability, facilitating the maintenance, inspection and management, and preventing the safety accidents caused by the counter-rotation of the belt.

The invention discloses a drill rod power clamp, and relates to the technical field of drill rod power clamps. The drill rod power clamp specifically comprises a clamp head, a transmission device, anautomatic door, a brake band assembly, a lifting device, a planetary gearbox assembly and a transfer system assembly, wherein the clamp head is assembled in the transmission device; the automatic dooris mounted at an opening of the transmission device; the brake band assembly is positioned and mounted on the transmission device through a hole; the lifting device is mounted above the transmissiondevice; the planetary gearbox assembly is assembled above the rear end part of the transmission device; and the transfer system assembly is mounted behind the transmission device. The drill rod powerclamp has wide range of clamping pipe diameters and large torque; the liquid-gas combined control is adopted, so that the operation is simple; the integral structure of an upper clamp and a lower clamp is adopted, the integral rigidity of the power clamp is enhanced, and the reliability of the power clamp for clamping a drilling tool in a large torque state is ensured; and an upper clamp floatingstructure is adopted, so that the upper clamp and the lower clamp can be automatically centered.

The invention relates to an object centroid measuring device and an object centroid measuring method, the object centroid measuring device comprises a device base, an object bearing seat for bearing an object to be measured is arranged on the device base, and a swing supporting structure is arranged between the object bearing seat and the device base for the object bearing seat to swing along a swing axis extending horizontally. A balance detection device used for detecting the balance state of the object bearing seat is further arranged between the object bearing seat and the device base. The object bearing seat is provided with a weight guide seat which extends along a straight line and is used for guiding the weight to move, the straight line where the extension direction of the weight guide seat is located is perpendicular to the swing axis of the object bearing seat, and the object mass center measuring device further comprises a distance obtaining structure used for obtaining the distance between the weight and the swing axis; a weighing sensor is arranged on the device base, and the swing supporting structure is arranged between the weighing sensor and the object bearing seat and used for measuring the total mass of the object bearing seat and an object to be measured placed on the object bearing seat.

The invention belongs to the field of automobile transmissions and particularly relates to a manual transmission interlock cage and a manual transmission. The interlock cage is provided with a limiting slot or limiting hole in the top, the limiting slot or limiting hole is elongated, the length direction of the limiting slot or limiting hole is consistent with the axial direction of shifting shaft through holes, the length of the limiting slot or limiting hole is greater than or equal to a selection travel of a shifting head, and a limiting block arranged on a shifting mechanism case and capable of relatively moving in the limiting slot or limiting hole along the length direction of the limiting slot or limiting hole is extended into the limiting slot or limiting hole. The limiting slot or limiting hole and the limiting block have high machining precision and high strength and hardness, a fitting clearance between the limiting slot or limiting hole and a limiting pin is small, and the limiting pin experiences small sliding loss in the limiting slot or limiting hole; therefore, it is ensured that the interlock cage may be kept vertical constantly, and it is avoided that excessive manual shifting force leads to damage of the shifting mechanism case and affects the gear interlocking function.

The invention discloses a heavy one-stage door frame. The door frame comprises an outer door frame assembly, a goods blocking frame assembly is connected to the outer door frame assembly in a slidingmode, the outer door frame assembly comprises a right steel channel assembly and a left steel channel assembly which are arranged in a bilateral symmetry mode, and the right steel channel assembly andthe left steel channel assembly comprise a composite rolling wheel web; a composite roller inner track plate and a composite roller outer track plate are fixedly connected to the inner side of the composite rolling wheel web, composite rolling wheels are rotatably connected to composite rolling wheel mounting plates, and side rolling wheels are rotatably connected to side rolling wheel mounting plates; and the composite rolling wheels are clamped between the composite rolling wheel inner track plate and the composite rolling wheel outer track plate, and the side rolling wheel track plate is clamped between the side rolling wheels and the composite rolling wheel mounting plates. According to the door frame, the side rolling wheels and the composite rolling wheels are arranged, and an innerdoor frame in a traditional forklift door frame is omitted, so that the forklift door frame is simpler, the landing full height and the ground clearance of a fork arm carrier of a forklift are reduced, the use range of the forklift is enlarged, and the use environment of a ship can be well used.

The invention discloses a mechanical collision test device which comprises a rack, a pendulum bob mechanism and a discharging mechanism. A lifting driving mechanism is arranged on the rack and drivesthe pendulum bob mechanism to ascend and descend. The discharging mechanism comprises a discharging carrying table, a fixed baffle, a movable baffle and a baffle driving device are arranged on the discharging carrying table, and the baffle driving device drives the movable baffle to move; according to the scheme, the liftable pendulum bob mechanism is designed and can adapt to products with different heights, and different height positions of the products can be tested respectively; the pendulum bob mechanism is optimized, so that the pendulum bob mechanism can be tested more efficiently, anda more accurate test result can be obtained; the pendulum bob mechanism is further provided with a stop assembly, the pendulum bob can be prevented from swinging back and forth, impacting a workpiecefor multiple times and influencing a test result, the impact of a stop is reduced through the buffer design of the stop assembly, the service life of the mechanism is prolonged, and impact noise is reduced.

The invention discloses a wooden furniture painting turnover device. The wooden furniture painting turnover device comprises a box body, a painting assembly and a turnover assembly arranged in the boxbody; the painting assembly comprises a paint spraying device and a moving device; the turnover assembly comprises a clamping device and a driving motor; the driving motor is fixedly installed on theouter wall of the box body and is in linkage with the clamping device; the clamping device comprises a rotating plate, a linkage shaft and a rotating shaft; and two sets of clamping plates are installed on the inner wall of the rotating plate in a floating mode through multiple sets of compression springs. According to the wooden furniture painting turnover device provided by the invention, the rotating plate and the clamping plates are adopted, furniture is quickly clamped through the elastic force of the compression springs, and the furniture is convenient to overturn in cooperation with the driving motor; the linkage shaft of a telescopic rod structure is adopted and matched with the other set of rotating plates, and the wooden furniture painting turnover device is suitable for clamping furniture of different lengths; paint in a paint storage box is conveyed into a paint spraying head through a paint spraying pipe and sprayed to the furniture through a paint spraying pump, meanwhile, the moving device drives the paint spraying head to move left and right, and comprehensive painting of the furniture is guaranteed.

The invention relates to the technical field of engineering machinery, in particular to a rotary motor control system and a control method thereof. The rotary motor control system comprises a rotary motor, a main pump, a pilot pump, an oil tank, a brake piston cylinder, a first reversing valve, a second reversing valve and an electric control handle, wherein the first reversing valve, the second reversing valve and the electric control handle are connected with a controller; the electric control handle is connected with the first reversing valve and the second reversing valve to send control signals to the first reversing valve and the second reversing valve; the main pump is connected with the pilot pump, both the main pump and the pilot pump are connected with the first reversing valve,and the rotary motor is connected with the first reversing valve to supply oil to the rotary motor through the main pump; the second reversing valve is connected with the pilot pump and a rod cavity of the brake piston cylinder so as to supply pilot oil to the rod cavity through the pilot pump and send the pilot oil in the rod cavity into the oil tank; and the brake piston cylinder is connected tothe rotary motor for braking the rotary motor. Through the electronic control technology, the problem that a complex mechanical structure of an existing excavator rotary mechanism caused by braking of the rotary mechanism is solved.