70results about How to "Has the function of cushioning and shock absorption" patented technology

The invention discloses a screw driving deformation shock-absorption walking part. The screw driving deformation shock-absorption walking part comprises a rack, epicyclic gear train assemblies, an angle modulation device and walking assemblies. The two epicyclic gear train assemblies are arranged symmetrically and comprise sun gears, rotary arms, planet gears and shock-absorption elements. The shock-absorption elements are connected with the rack and the rotary arms correspondingly. A nut block of the angle modulation device is connected with one sun gear. A shaft seat block is connected with the other sun gear, the distance between the nut block and the shaft seat block can be changed under the action of a screw, the two sun gears, the planet gears meshing with the sun gears and the walking assemblies connected with the planet gears are driven to rotate reversely, and thus deformation of the walking part is achieved. When the two walking assemblies are subjected to outer impact, due to existing of the shock-absorption elements, the rotary arms can swing elastically within a certain range, and thus the walking part has shock-absorption performance. In addition, the invention further provides a firefighting movable platform which comprises the screw driving deformation shock-absorption walking part and can be used for design of a firefighting robot.

The invention relates to the technical field of medical apparatus and instruments, and discloses an external fixing frame for postoperative nursing of the bone traumatology department, the external fixing frame comprises a nursing bed, a side plate is fixedly mounted at the edge of the nursing bed, a U-shaped frame is slidably arranged on the outer wall of the side plate, and a driving device is arranged on the U-shaped frame and is used for driving the U-shaped frame to slide back and forth on the side plate. The legs of a patient are placed in the lower clamping sleeve, when the upper clamping sleeve gradually gets close to the lower clamping sleeve, magnetism of a magnetic block is utilized to push a piston, the piston moves along an arc-shaped cavity, the piston moves along the arc-shaped cavity so that air in the arc-shaped cavity can be inflated into an air bag through a communication opening, the air bag is inflated and swelled to be attached to the legs of the patient, and fixing is firmer and more comfortable; certain buffering and damping functions are also achieved, and the legs of the patient are prevented from being secondarily hurt. The external fixing frame is novel in design and simple in structure, and has the advantages that stretching traction and knee bending exercise can be achieved at the same time, legs are firmly and comfortably fixed, and limbs can be conveniently kept warm.

The invention relates to the technical field of electric power fittings, in particular to a buffer and damping wire pulling pole. The buffer and damping wire pulling pole comprises a lower pulling pole body, a first hanging plate, a first spring, a second spring, a second hanging plate and an upper pulling pole body; the lower pulling pole body is of a U-shaped structure, and threads are arrangedat the two column ends of the lower pulling pole body; the two column ends of the lower pulling pole body are sleeved with the two ends of the first hanging plate correspondingly, the two column endsof the lower pulling pole body are sleeved with the first spring and the second spring correspondingly, and the first spring and the second spring are located above the first hanging plate; the two column ends of the lower pulling pole body are sleeved with the two ends of the second hanging plate correspondingly, and the two ends of the second hanging plate are located above the first spring andthe second spring; and the top ends of the two column ends of the lower pulling pole body are in threaded connection with a first nut and a second nut, and the lower end of the upper pulling pole bodydownwards penetrates through the second hanging plate and the first hanging plate in sequence and then is fixedly connected with a plug. According to the buffer and damping wire pulling pole, the structure is simple, the thick energy-storage springs are additionally mounted on the pulling pole bodies, tensioning of the pulling pole bodies on an electric pole can be ensured, the effects of bufferand damping are further achieved, and electric pole toppling due to the situation that fixing piles on the ground are pulled out by the pulling pole bodies under ultra-large tensile force can be prevented.

The invention discloses a shaking apparatus for blood collection tubes in a clinical laboratory. The shaking apparatus includes a motor, a tooth-shaped rotary disk, a transmission shaft II, a rotary drum, and an end cap. A transmission shaft I is arranged at one side of the motor. A belt wheel I is arranged on one end of the transmission shaft I. The transmission shaft II is arranged at one side of the transmission shaft I. A belt wheel II is arranged on one end of the transmission shaft II. The belt wheel I is connected to the belt wheel II via a belt I. The tooth-shaped rotary disk is arranged on one end of the transmission shaft II. A rotary drum is disposed at one side of the tooth-shaped rotary disk. A plurality of guiding grooves are formed in the rotary drum. A belt wheel III is arranged on the rotary drum. A belt wheel IV is arranged at one side of the belt wheel III. The belt wheel III is connected to the belt wheel IV via a belt II. An end cap is arranged on one side of the rotary drum and is provided with installation grooves being corresponding to the guiding grooves. Springs are arranged in the installation grooves. When the tooth-shaped rotary disk rotates, one end ofa blood collection tube moves in a reciprocating straight line manner in the guiding groove in the rotary drum according to the tooth-shaped motion track of the tooth-shaped rotary disk, so that theblood collection tube is uniformly shaken automatically. Meanwhile, the rotary drum rotates under driving by the motor, so that shaking effect of the blood collection tube is enhanced.

The invention discloses an oil cylinder and aims to solve the problems that in the prior art, oil in oil cylinders on fitness equipment is liable to leak, and the oil cylinders are not suitable for physical exercise of wide population. The oil cylinder comprises a cylinder block provided with a piston cavity. The piston cavity is provided with a piston rod capable of contracting into the cylinderblock or extending out of the cylinder block. An elastic piston which divides the piston cavity into a first secondary cavity and a second secondary cavity is arranged on the piston rod. The piston rod can drive the elastic piston to reciprocate in the piston cavity. The piston rod is provided with an oil drainage channel communicating with the first secondary cavity and a second secondary cavity.By driving the piston rod, the elastic piston is driven by the piston rod to move and better intercepts the oil drainage channel along with increase of driving force of the elastic piston; and by applying the oil cylinder on the fitness equipment, damping of the fitness equipment is increased automatically along with increase of force of exercisers, a medium circulates inside, compared with the prior art, the oil cylinder has the advantages of being suitable for wider population, simple in structure, low in production cost, capable of reducing oil pollution and the like.

The invention relates to the technical field of geological survey equipment, in particular to a geological survey instrument supporting device. The geological survey instrument supporting device comprises a supporting base, a geological survey instrument containing groove is formed in the supporting base, and a base is arranged on the lower side of the supporting base; the base is of an internal hollow structure, and the top wall of the base is provided with a through hole; and a rotating shaft is connected to the center of the lower end face of the supporting base, the lower end of the rotating shaft penetrates through the through hole and is connected with a second bearing pedestal, the second bearing pedestal is installed on the bottom wall of the base, and a driving assembly is arranged on the base. According to the geological survey instrument supporting device, through cooperation of a first bearing pedestal and a bearing, a rotating handle can be rotated to drive a worm to rotate, a worm gear can be driven to rotate through meshing of the worm and the worm gear, the worm gear drives the rotating shaft to rotate, the rotating shaft drives the supporting base to rotate, angleadjustment of a geological survey instrument is achieved, use of the geological survey instrument is convenient, and the geological survey instrument supporting device can be conveniently moved through moving wheels.

The invention relates to the technical field of production of plastic granules, and discloses an extrusion forming device for production of the plastic granules. The extrusion forming device comprisesan extrusion cylinder and a cooling cylinder, the cooling cylinder is fixed to the right side of the extrusion cylinder, and an extrusion structure and a cooling structure are arranged in the extrusion cylinder and the cooling cylinder. The extrusion structure comprises a driving motor, a rotary rod, an auger, electric heating pipes, a scraping slot, an extension rod and a scraper, wherein the rotary rod is transversely and rotationally installed in the extrusion cylinder through a first bearing, the auger fixedly surrounds the outer ring of the rotary rod through welding, the electric heating pipes are fixedly embedded into the inner wall and the outer wall of the extrusion cylinder, and the electric heating pipes is arranged around the inside of the outer wall of the extrusion cylinder.By fixedly welding three mesh plates to the lower side in the cooling cylinder, and arranging fans above the cooling cylinder to blow air into the cooling cylinder, agglomerate plastic granules can be broken up under the action of through holes of the mesh plates, the plastic granules can be cooled by the fan through blowing, and the plastic granules can be well prevented from being caked.

The invention discloses a cable winding device with a cable cutting function, which belongs to the technical field of electric equipment. The surface of the bottom plate is fixedly connected with a support plate, and the side of the support plate is rotatably connected with a winding wheel, and the surface of the winding wheel is wrapped with a Cable, the surface of the bottom plate is fixedly connected with a fixed plate, the side of the fixed plate is slidably connected with a connecting rod, the surface of the connecting rod is rotatably fitted with a squeeze roller, and one end of the fixed plate is provided with an adjustment hole. The cutting seat set by the winding device has the function of horizontal movement, which not only does not affect the retracting and unwinding of the cable, but also the set motor and cutting piece allow the staff to cut the cable easily and quickly, and the set squeeze roller has the function of up and down The moving function can not only squeeze the cable to facilitate cutting by the cutting piece, but also can guide the cable when retracting and unwinding, which improves the convenience of the cable winding device.

The invention relates to a thin bipolar plate sealing structure with a limiting function. The thin bipolar plate sealing structure comprises thin bipolar plates, membrane electrode frames and sealing glue lines; the thin bipolar plates are provided with sealing grooves, and the bottoms of the sealing grooves are flat surfaces; two sides of each sealing groove are convex inner and outer edges; the sealing glue lines are arranged in the sealing grooves and extend out of the outer edges of the sealing grooves; the end parts of the sealing glue lines are flush with the outer edges of the thin bipolar plates and the membrane electrode frames; the sealing glue lines are provided with grooves in the positions which correspond to the outer edges of the sealing grooves, and the grooves of the sealing glue lines are matched with the outer edges of the sealing grooves of the thin bipolar plates; and the contact surfaces of the sealing glue lines and the membrane electrode frames are flat surfaces. Because the sealing glue lines and the sealing grooves are used for limiting mutually, the leakproofness of electrical piles can be kept stable and reliable, and the performance of multiple sections of electrical piles can be kept consistent; the sealing glue lines are convenient to arrange, can be operated efficiently and have buffering and damping functions; the contact surfaces of the sealing glue lines and the membrane electrode frames are flat surfaces, thus the membrane electrode frames are not easy to deform, and the physical structure of a membrane electrode can be prevented from being damaged; and the sealing glue lines can be manufactured from a variety of materials, and the materials for manufacturing the sealing glue lines are readily available and can be selected according to needs.

The invention discloses a novel steel shot automatic recovery device, and belongs to the technical field of shot blasting machines. One end of a device shell is buckled with an upper cover, the surface of the upper cover is fixedly connected with a feeding pipe, the other end of the device shell is fixedly connected with a discharging pipe, and the inner wall of the device shell is fixedly connected with a sorting box and a buffer sleeve; and a filter plate is hinged to the bottom of the sorting box through a hinge, and the filter screen is arranged in middle of the filter plate. According to the novel steel shot automatic recovery device, impact force added by steel shots can be ingeniously converted into vibration force of the filter screen through the arranged inclined filter plate, so that not only is the screening efficiency between the steel shots and scrap iron impurities improved, but also meshes of the filter screen can be prevented from being blocked; and a spiral flow guide pipe and a buffer sleeve are arranged, so that the steel shots can be prevented from falling down disorderly and colliding with a device shell or other parts, the steel shots fall to the bottom of a recycling device in order, and damage cannot be generated in the recycling process.

The invention discloses a yarn bobbin fixing structure of a twisting machine, comprising a first support base, a first rotating shaft and a second sleeve, the first support base is connected with the second support base through an overturning fixing piece, the first support base A rotating shaft is connected to the second rotating shaft through the flipping fixture, and the first sleeve is installed on the left end of the first rotating shaft and the right end of the second rotating shaft, and the other end of the second sleeve is connected with a rotating support device, and the rotating support The other end of the device is installed with a roller protection device, and the outer ring of the roller is provided with a bobbin. The support base and the rotating rod of the bobbin fixing structure of the twisting machine are distributed on the left and right ends of the turning fixture in a folded manner, which is beneficial to reduce the storage space of the bobbin fixing structure of the twisting machine. Shock-absorbing springs and fixing rods are respectively arranged inside the inside of the sleeve and the inside of the second sleeve, so that the yarn bobbin can be evenly stressed during the process of unwinding.

The invention provides a refractory material grinding device, and relates to the technical field of refractory material production equipment. The refractory material grinding device comprises a grinding chamber, a grinding machine, a feeding pipe, a fan, a sprayer, a dust hood, a dust remover, a dust outlet, an air outlet pipe, a draught fan, an air return pipe, a base, a screening plate, a storage hopper, a discharging pipe, a vibrating motor, a connecting shaft, a collecting hopper, telescopic rods and springs; the grinding machine is fixed inside the grinding chamber, and the grinding machine is provided with the feeding pipe in a communicating mode; and the screening plate is arranged right below the discharging end of the grinding machine, a plurality of screen holes are uniformly formed in the screening plate, and the screening plate is obliquely arranged rightwards and downwards. According to the grinding device, the screening plate is arranged, so that after a refractory material is ground into powder in the grinding machine, the screening plate can be used for screening the powdery refractory material, then the wear-resistant material with the suitable particle size is screened out, subsequent screening again is not needed, and the production steps are simplified; and the telescopic rods and the springs are coordinated mutually, so that a certain buffering and dampingeffect is achieved on the grinding chamber.

The invention discloses an environment-friendly washing machine device with a primary purifying structure, and relates to the technical field of washing machines. The environment-friendly washing machine device comprises a washing machine shell, a dewatering barrel and a filtering and purifying mechanism. A water containing barrel is mounted in the washing machine shell, and a buffering mechanismis arranged on the inner wall of the water containing barrel. The dewatering barrel is mounted in the water containing barrel, and dewatering holes are formed in the inner wall of the dewatering barrel. A water valve is arranged above the middle of the washing machine shell, and the upper side and the lower side of the water valve are connected with water inlet pipes. A limiting and anti-deviationmechanism is mounted between the water containing barrel and the dewatering barrel. Water circulating mechanisms are mounted on the two sides of the dewatering barrel, and the two sides of the lowerportion of the water containing barrel are connected with drainage pipes. The environment-friendly washing machine device has the advantages that water resources can be repeatedly utilized by arranging the water circulating mechanisms, two sets of symmetric water conveying pipes can draw filtered water in a water tank conveniently for recycling through a water pump and a water drawing pipe, the water consumption is reduced, and environmental protection benefits are improved.

The invention relates to the technical field of elevator cars, in particular to a novel underbeam-free car structure which comprises a car bottom, a car body and a straight beam fixed on the car bottom, and further comprises a vibration kinetic energy absorption mechanism used for absorbing and converting vibration energy generated in the operation process of the whole car; the buffering and supporting mechanism is used for buffering, damping and supporting the bottom of the compartment body, and the vibration kinetic energy absorption mechanism is in power connection with the buffering and supporting mechanism in a pneumatic mode; and the vibration kinetic energy absorption mechanism is in power connection with the self-adaptive lubricating mechanism, and lubricating oil is automatically added between the straight beam and the guide rail under the condition that the temperature between the straight beam and the guide rail is too high. According to the novel underbeam-free lift car structure, stronger and more stable supporting force is provided for the bottom of the car body, lubricating oil is automatically added between the straight beams and the guide rails, the abrasion speed between the straight beams and the guide rails is greatly reduced, manual maintenance is not needed, and the use efficiency of an elevator is improved.

The invention discloses a wooden furniture surface polishing device, belongs to the technical field of furniture processing, and solves the problem of low working efficiency of an existing wooden furniture surface polishing device. The wooden furniture surface polishing device comprises a cross beam, a base, a workbench, a polishing wheel and an asynchronous motor, and a furniture plate is embedded in a first groove formed in the surface of the workbench; the polishing wheel is connected with the asynchronous motor at the bottom of a fixing plate through a driving shaft, the fixing plate is connected with a hydraulic cylinder embedded in the side wall of a second sliding block through a hydraulic supporting rod, the second sliding block is slidably connected to a first screw rod, the firstscrew rod is fixedly connected with a first servo motor, and a side edge beam is embedded in a second groove formed in the upper surface of the base and is connected to a second screw rod in a sliding manner; and the second screw rod is fixedly connected with a second servo motor, and the axis direction of the first screw rod is perpendicular to the axis direction of the second screw rod. The wooden furniture surface polishing device has the beneficial effect of being high in work efficiency.

The invention discloses a novel turbo air grader for silicon carbide micro powder. The novel turbo air grader comprises a supporting column, wherein the top of the supporting column is fixedly equipped with a fixed plate; the fixed plate penetrates through an unloading housing; the top of the unloading housing is fixedly equipped with a main housing; a rotary shaft is arranged inside the main housing; a rotary cage sleeves the bottom of the rotary shaft; the top of the rotary cage is fixedly equipped with a scattering disc; a volute casing is arranged outside the main body; the top of the mainhousing is fixedly equipped with a first motor; the first motor is in transmission connection to the rotary shaft through a belt; one side, away from the first motor, of the top of the main housing is equipped with a charge hole; the top of the charge hole is fixedly equipped with a loading device; and one side, close to a fine powder outlet, of the top of the main housing is fixedly equipped with a fine powder unloading tube. The novel turbo air grader for silicon carbide micro powder is simple and reasonable in structure, is convenient in use, and effectively solves the problem that most ofexisting novel turbo air graders for silicon carbide micro powder are lack of control charging devices and cannot screen fine powder, and has a very high practical value.

The invention discloses a medical shaking device for blood collection tubes in a test division. The medical shaking device comprises fixing plates, a crankshaft, bushings, connecting rods, fixing cylinders and a motor, wherein a plurality of fixing plates are arranged at one side of the motor, a belt pulley I is arranged on one side of the motor, and a belt pulley II is arranged on one side of thebelt pulley I; the belt pulley I is connected with the belt pulley II through a belt I, the crankshaft is arranged on one side of the belt pulley II, and a plurality of journals are arranged on the crankshaft; the bushings are arranged on the journals, each connecting rod is arranged on one side of one bushing, and the other end of each connecting rod is provided with one corresponding fixing cylinder; the blood collection tubes are arranged inside the fixing cylinders, a belt pulley III is arranged on one side of the upper part of the belt pulley II, and the belt pulley III is fixedly connected with a position, above the belt pulley III, of the crankshaft; and the belt pulley II is connected with the belt pulley III through a belt II. According to the medical shaking device, the connecting rods are movably connected with the journals of the crankshaft through the bushings, and each fixing cylinder is arranged at the other end of one corresponding connecting rod, and when the blood collection tubes are placed in the fixing cylinders, the fixing cylinders are driven to move in a reciprocating linear mode through the rotation of the crankshaft so that even shaking of blood in the blood collection tubes can be achieved, the labor intensity of blood sampling personnel can be reduced, and the efficiency of blood collection can be improved.

Skin, fixed plate, screw, sliding motor, induction device, dental attack device, tap, fan, workpiece, and electrical control box, the top of the mold body is set with an upper model, the bottom is set with a lower mold seat, the bottom of the lower mold seat isThere are tooth holes, empty cavity below the tooth holes, a storage box inside the cavity, spring on the left and right sides of the lower side of the lower mold seat.Duan, the structure of the present invention is simple, convenient to operate, can attack teeth at different locations of the workpiece, and the positioning is accurate, which improves the quality of product production, reduces the waste rate of the product, and has the function of cleaning the debris.Treatment has strong practicality.

The invention discloses a fixing apparatus for a motor of an air dust type air conditioner, and belongs to the field of air conditioner accessories. The fixing apparatus for the motor of the air dusttype air conditioner comprises a base plate, wherein the upper end surface of the base plate is provided with a left sliding groove, the surface of the base plate is provided with symmetrical threadedholes, the upper end surface of the base plate is provided with a right sliding groove, the upper end of the base plate is slidably connected with a left supporting plate, the surface of the left supporting plate is provided with symmetrical mounting holes, the upper end of the left supporting plate is slidably connected with a left fixing plate, the left fixing plate is internally provided witha clearance groove, and the left side of the left fixing plate is fixedly connected with a guide block. The fixing apparatus is provided with a telescopic plate with a function of adjusting the length, so that the fixing apparatus is enabled to be convenient for fixing motors with different sizes, thereby not only expanding the application range of the fixing apparatus, but also improving the mounting efficiency. In addition, the left supporting plate and the right supporting plate enable the telescopic plate to have the function of cushioning and shock absorption, thereby being capable of reducing the vibration noise generated by the motor in operation, and having a function of noise reduction.

The invention discloses a filter bag convenient to disassemble and change. The filter bag comprises a filter bag body, iron rods and elastic ropes; a connection head is fixedly connected to the upperend of the filter bag body; two groups of fixed blocks are symmetrically and fixedly connected to the outer side of the connection head; the lower part of each fixed block is provided with an insertion groove; a permanent magnet is fixedly connected to the inner top of each insertion groove; a lantern ring is fixedly connected to the surface of the filter bag body; the upper end of each iron rod is movably connected to the interior of the insertion groove of the corresponding fixed block in an inserting manner; two groups of first hanging rings are symmetrically connected to the two sides of the lower surface of the filter bag body; and a first hook is installed in each hanging ring. The filter bag provided by the invention is convenient to hold by hands to enable the upper end of the filter bag to be inserted into a dust discharge hole of a dust collector and perform threaded mounting and is convenient to mount; under the action of an elastic tensile force, the filter bag is fixed andhas the effects of buffering and damping; and the filter bag body is of a simple structure, mounting and disassembly can be realized through the two iron rods, and use is convenient.

The invention discloses general traction equipment for an aeronautical ground plane, and relates to the technical field of aircraft traction. The equipment comprises a traction device body, wherein the traction device body comprises a traction rod, a traction ring, a traction head, a traction block, a roller, a bracket, a hydraulic lever, a rocker and a universal wheel; one end of the traction rodis fixedly connected with one end of the traction ring through an elastic block, and the other end of the traction rod is movably connected with one end of the traction block through a shear nut. Thetwo traction heads allow the traction equipment to have a certain steering flexibility on the one hand, and on the other hand, when the traction force is too large, the shearing nut is cut off at thereduced diameter, so as to protect the machine frame from damage; secondly, a compression spring is sleeved on the outer surface of the connecting strip, so that the shearing nut can play a role of cushioning and damping when the main body of the traction equipment stops moving, and the machine frame structure can be prevented from being damaged due to collision.

The invention discloses a cable winding device with a cable cutting-off function, and belongs to the technical field of electric devices. The cable winding device is characterized in that a supportingplate is fixedly connected to the surface of a bottom plate, a winding wheel is rotatably connected to the side surface of the supporting plate, the surface of the winding wheel is bundled with a cable, a fixing plate is fixedly connected to the surface of the bottom plate, a connecting rod is slidably connected to the side surface of the fixing plate, an extruding roller is rotatably arranged atthe surface of the connecting rod in a sleeving mode, and an adjusting hole is formed in one end surface of the fixing plate. A shearing seat arranged by the cable winding device with the cable cutting-off function has the function of horizontal movement, winding and unwinding of the cable cannot be influenced, and a motor and a cutting piece are arranged, so that a worker can easily and quicklycut the cable off, the arranged extruding roller has the function of moving up and down, the cable can be extruded, cutting-off of the cutting piece is facilitated, guiding can be carried out when thecable is wound and unwound, and the use convenience of the cable winding device is improved.

The invention relates to the technical field of hydrogen fuel cells, in particular to a power generation system of a low-purity hydrogen fuel cell, which comprises a frame, and a fuel cell engine, a formic acid storage tank, a reaction kettle, a gas storage tank, an air compressor, an air humidifier, a DC / DC converter, an inverter and a lithium battery pack are respectively mounted in the frame through bolts. Formic acid in a formic acid storage tank is pumped into a reaction kettle and reacts under the action of a catalyst to generate mixed hydrogen, the mixed hydrogen enters a gas storage tank, gas in the gas storage tank is fed into a fuel cell engine, and generated electric energy is converted by a DC / DC converter and is respectively conveyed to an inverter and a lithium battery pack; the current passes through the inverter to drive the driving motor to operate, and the current converted by the DC / DC converter can be stored in the lithium battery pack for standby application, so that the lithium battery pack can be discharged when storing the electricity generated by the fuel cell, and the electricity-electricity hybrid power of the electric vehicle is well realized.

The invention relates to the technical field of sneakers, and discloses a low-cost breathable heat dissipation type sneaker sole and a sneaker. The sole comprises a sole body, a bottom pad cover and abreathable pad which are formed at a time, the bottom pad cover is fixedly connected to the surface of the top of the sole body through glue, and the breathable pad is fixedly connected to the surface of the top of the bottom pad cover through glue; a first cavity and a second cavity with upward openings are formed in the root and the head of the sole, an air inlet is formed in the inner wall ofthe left end of the first cavity in a penetrating mode, and a one-way air guide valve is arranged in the air inlet. An air guide channel is arranged between the first cavity and the second cavity in acommunicating manner; an air guide through hole is formed in the bottom pad cover and penetrates through the bottom pad cover to be communicated with the first cavity and the second cavity; the breathable pad is provided with a first ventilation hole, a second ventilation hole and a third ventilation hole which are communicated in pairs, and the first ventilation hole is communicated with the airguide through hole; the problems that in the prior art, sports shoes are poor in ventilation and heat dissipation effect and poor in elasticity and shock absorption effect, the wearing experience isaffected, and the production and manufacturing cost is high are solved.

The invention discloses a rotary drilling rig provided with a remote control plate-loading vehicle and belongs to the technical field of engineering mechanical equipment. According to the rotary drilling rig, an upper vehicle is fixedly mounted at the upper end of a lower vehicle, a mast is fixedly mounted at the left side of the upper vehicle, the upper end of the mast is fixedly connected with apulley yoke, the lower end of the pulley yoke is fixedly connected with a buffer seat, an upper stop block and a lower stop block which are in symmetry are fixedly connected into the buffer seat, theupper stop block, the lower stop block and the buffer seat define a telescopic chute, and a spring is connected into the telescopic chute in a contact mode. According to the rotary drilling rig, thebuffer seat and a shock absorption sleeve which are arranged have the functions of buffering and shock absorption, shaking of a steel wire rope due to excessively high winding and unwinding speed canbe avoided, unnecessary friction generated by the steel wire rope as a result of the shaking is avoided, and the service life of the steel wire rope is prolonged; and moreover, an anti-disengaging seat which is arranged has the functions of limiting, disengagement prevention, buffering and shock absorption, the situation that a drilling error is generated due to radial movement, caused by the factthat a drilling tool encounters a hard material, of a drill pipe can be avoided, and the drilling precision of the rotary drilling rig is improved.

The invention discloses a standard hole machining device for a bathtub. The standard hole machining device comprises a base. The upper portion of the base is connected with a workbench. A through groove for containing a workpiece is formed in the workbench. A drilling tool and a fixing frame for fixing the drilling tool are arranged at the position, on one side of the through groove, of the workbench. The fixing frame comprises a telescopic column vertically mounted on the workbench. The top of the telescopic column is connected with a telescopic rod. The telescopic rod is horizontally mounted. A through hole allowing the drilling tool to be inserted therein is formed in the end, away from the telescopic column, of the telescopic rod. The drilling tool comprises a drilling rod with the front end downwards penetrating the through hole to the position below the telescopic rod. An auger bit is mounted at the front end of the drilling rod. A casing pipe with a buffer pad arranged at the bottom is mounted below the telescopic rod. The casing pipe is connected to the outer portion of the drilling rod in a sleeving manner and is tangent to the drilling rod. According to the standard hole machining device, it is guaranteed that the quality of a machined hole meets the requirement by determining the position of the bit.

The invention discloses a codirectional variable-speed transmission coupler and a use method. The codirectional variable-speed transmission coupler comprises an input shaft, wherein the input shaft issleeved with a second rolling bearing, the outside of the second rolling bearing is sleeved with an outer ring fastener, cycolidal teeth are arranged in the inner cavity of one end of the outer ringfastener, and the cycolidal teeth and the outer ring fastener are fixed through locking screws. A middle ring is arranged in the middle of the cycolidal teeth, and cylindrical rollers are installed between the middle ring and the cycolidal teeth. An eccentric wheel is arranged in the middle ring, and installed on the input shaft. The middle ring is installed on the output shaft. A housing for matching is installed on the output shaft through a first rolling bearing. The outer edge of the housing is fixedly connected with the middle ring through hexagon bolts. The coupler can achieve the functions of a traditional clutch, can also provide different transmission ratios, or even can play the positioning and supporting effects of the bearings.

The invention discloses a suspension system. The suspension system comprises a driving system and an auxiliary wheel assembly arranged on the side face of the driving system, wherein a driving bracketis arranged between the driving system and a vehicle body, a hinge is arranged between one end of the driving bracket and the vehicle body, a buffer element is arranged between the other end of the driving bracket and the vehicle body and used for alleviating vertical vibration of the driving bracket, and an elastic element is arranged between the auxiliary wheel assembly and the vehicle body. According to the suspension system, the auxiliary wheel assembly is elastically connected with the vehicle body, and the elastic element is semi-rigid and has the characteristic of rigidity after beingcompressed, so that the driving system is semi-rigid; the buffer element has certain compression amount when being impacted, so that the driving system also has elasticity and a buffering and dampingeffect and can be effectively protected from the influences of impact and vibration, and the service life of the driving system is effectively prolonged. The invention also discloses a pallet truck comprising the suspension system.

Disclosed is a novel buffering and damping picker structure. A silicon rubber sleeve is arranged between a taper hole in a picker head and a frustum of a picker handle. The flexible silicon rubber sleeve arranged between the taper hole in the picker head and the frustum of the picker handle has the buffering and damping functions. The novel buffering and damping picker structure has the advantages that due to the fact that the flexible silicon rubber sleeve arranged between the installation hole in the picker head and the frustum of the picker handle has the buffering and damping functions, the defect that an existing picker structure easily bounces to vibrate the hand can be effectively overcome.