289results about How to "Reduce resistance to movement" patented technology

A medical patient transfer handcart is composed of a main body with lift mechanism and universal castors, and a transversely movable plate mechanism with dual-layer structure consisting of cloth reel and its frame end jointer holder, clutch gear, and upper and lower movable clothes (or plates).

The invention relates to a porous rubber material member. The member comprises a thin covering layer and a hole sound absorption layer which are integrated and made of a rubber material, wherein holes of the hole sound absorption layer are blind holes. The hole condition of the porous rubber material member is different from that of the common porous sound insulation material; in order to exert a sound absorption function, air holes of the common porous material are open and intercommunicated, and sound absorption property is higher when the number of the air holes is larger; the blind holes are directly and vertically punched on a rubber plate, so the porous rubber material member is suitable for vibration reduction and sound insulation in an air medium, and meets the requirement of certain pressure resistance when underwater equipment works in a deep water area; movement resistance can be reduced because the porous rubber material member has smooth appearance; in addition, the hole sound absorption layer and the thin covering layer are combined to form a composite structure, so the porous rubber material member has high sound absorption and sound insulation properties.

The invention discloses a movable desorption device of activated coke. An inlet blocking valve, a heating chamber, a reaction chamber, a cooling chamber and an outlet blocking valve are sequentially connected from top to bottom in the reactor main body; the heating chamber is provided with a heating heat exchanger therein which is connected with a thermal source device; a cooling heat exchanger is arranged in the cooling chamber; a preheating chamber is arranged between the inlet blocking valve and heating chamber and provided with a preheating heat exchanger, which forms a heat circulating system with a circulating medium heat exchanger, a circulating pump and the cooling heat exchanger; a first cloth gas guide mechanism is arranged between the preheating chamber and heating chamber; a second cloth gas guide mechanism is arranged between the heating chamber and reaction chamber; and the first and second cloth gas guide mechanisms are respectively connected with a gas recovery suction pump for recycling desorption gas. The invention has higher utility ratio of heat energy by redesigning each part in the reactor, and has more complete air suction, higher desorption efficiency and less corrosion to devices by adding the cloth gas guide mechanisms.

The invention discloses a method for preparing an adsorption material from fine coal gasification slag. The method comprises the following steps: 1, taking a proper amount of the fine coal gasification slag, and adding water to prepare a fine coal gasification slag slurry with the solid content being 10-30 wt%; 2, fully stirring the slurry prepared in step 1, performing gravity cyclone separation,collecting the obtained heavy separation product to obtain a silicon-rich composite slurry, and collecting the obtained light separation product to obtain a carbon-rich composite slurry; and 3, carrying out solid-liquid separation and drying on the carbon-rich composite slurry to obtain the carbon-rich adsorption material, and further preparing other products from the remaining silicon-rich composite slurry. The method realizes the high-added value recycling of the fine coal gasification slag.

The invention discloses a solid material and liquid material combined dual-nozzle 3D printer and a printing method thereof. The dual-nozzle 3D printer comprises a frame, an XY side moving module, a Zaxis moving module, a carrying plate, a solid material printing unit, a liquid material printing unit and a master control module, wherein the solid material printing unit comprises a solid printing head module and a wire feeding module; the upper end of a wire feeding throat pipe of the solid printing head module penetrates through a fixed plate of a cooling module to communicate with a wire feeding channel in the XY side moving module; and the lower end of the wire feeding throat pipe extends into a circular through hole of a metal heating block to communicate with a solid nozzle. An articlecombining the solid material with the liquid material can be printed, or a solid material article or a liquid material article is individually printed, and dual-component liquid materials are mixedlyprinted, a feeding module and a printing speed of the liquid material are flexibly controlled, and the combined dual-nozzle 3D printer and the printing method are suitable for performing 3D printingon multiple materials comprising a thermosensitive or thermoset liquid material.

The invention discloses a rotary circling mechanism which comprises one pair of circling arms with the same structure, wherein each circling arm comprises a wheel frame, a rotary head, a main shaft, a fiber releasing shaft and an optical fiber disk; the rotary head, the main shaft, the fiber releasing shaft and the optical fiber disk are coaxially arranged; the rotary head is a gear set composed of a wheel frame gear, a fiber releasing shaft gear and a main shaft gear; the three gears are coaxially arranged, are free from mutual interference and respectively rotate under the driving of external power equipment; the wheel frame gear, the fiber releasing shaft gear and the main shaft gear are respectively fixed with the corresponding wheel frame, the corresponding fiber releasing shaft and the corresponding main shaft; the fiber releasing shaft is sheathed on the main shaft; the optical fiber disk is fixed on the fiber releasing shaft; the wheel frame comprises a wheel frame fixing seat with a large round hole, a rotary head and a main shaft; the fiber releasing shaft and the optical fiber disk pass through the large rough hole and are respectively arranged on the two edges of the wheel frame fixing seat; the main shafts of one pair of circling arms are coaxially arranged; the ends of the circling arms are opposite; the wheel frame fixing seat is also connected with a wheel fixing frame; and the wheel fixing frame is positioned on one side of the main shaft and is provided with a plurality of fiber guide wheels used for guiding optical fibers led from the optical fiber disk to an optical fiber ring skeleton.

The invention discloses a recycling device for carbon powder. The recycling device for the carbon powder comprises an adsorption tower (1), an analysis tower (2), a first active carbon conveyor (3), asecond active carbon conveyor (4), a vibrating screen (5) or a multi-stage or multi-layer type vibrating screen (C) which is positioned below a discharge hole of the analysis tower (2) or at the downstream of the analysis tower (2), and a heating furnace (7), wherein the analysis tower (2) is provided with a heating section (201) and a cooling section (202); a hot air outlet of the heating furnace (7) is connected with a hot air inlet of the heating section (201) of the analysis tower (2) through a hot air pipeline (L3); an air outlet of the heating section (201) of the analysis tower (2) isconnected to a circulating and cooling air inlet of the heating furnace (7) through a circulating and cooling air pipeline (L4); screened fine carbon powder of the vibrating screen (5) is used as a fuel of the heating furnace (7); and fine active carbon particles screened out by the multi-stage or multi-layer type vibrating screen (C) are conveyed into a pelletizing system (D) for being pelletizedor conveyed into a wastewater purifying system for adsorbing waste acid.

The invention discloses a body structure of a boiling rotating fluidized bed, which comprises an outer housing and an air distributor. Due to the coverage of the outer housing and the air distributor, an accommodation chamber of the fluidized bed is formed. The air distributor is like a groove and tilts from the feeding end of the bed body to the discharging end. The air distributor mainly comprises an air distributor bottom board configured in the middle and air distributor sideboards configured on the two sides. A blowing bottom hole communicated with a sectionalized wind box is configured on the air distributor bottom board, and a blowing side hole communicated with the sectionalized wind box is configured on the air distributor sideboard. The air distributor is tooth-shaped or wave-shaped, the blowing bottom hole is configured between the teeth of a tooth-shaped air distributor bottom board or at the wave trough of a wave-shaped air distributor bottom board, and the opening of the blowing bottom hole faces the discharging end of the bed body. The opening of the blowing side hole on the air distributor sideboard faces the air distributor bottom board. The invention has the advantages of simple body structure, smooth bed surface and optimized flow field and can greatly improve the boiling rotating fluidized status. In addition, the invention can reduce more energy consumption.

The invention discloses a method for detecting the mechanical system of a drilling machine well mouth drill stem flux leakage detector. The mechanical system comprises a clamp arm device and a permanent magnetic detector device, wherein the clamp arm device can be closed in a cylindrical shape; an accommodating part is arranged in the clamp arm device, and a detector connecting seat is arranged in the accommodating part; and the detector device is arranged on the detector connecting seat. The detection method comprises the following steps: rendering the clamp arm device in an open state and positioning the clamp arm device at the well mouth position of the drilling machine; closing the clamp arm device and placing the upper part of the drill stem at the position of the well mouth of the drilling machine in the accommodating part; lifting the drill stem along the axial direction of the drill stem, and performing the flux leakage type flaw detection of the drill stem by using the permanent magnetic detector device; and opening the clamp arm device and withdrawing the clamp arm device from the well mouth of the drilling machine. The method can detect the drill stem without current and therefore can be directly used at the well mouth of the drilling machine and used conveniently; in addition, the detector device realizes the flux leakage flaw detection in a round trip process at the well mouth of a petroleum drilling machine, the detector is safe and explosion-proof and the manual washing of the drill stem is avoided.

The invention relates to an ultra-low-dose X-ray human body security inspection system with double exchange platforms, the system comprises an X-ray source, a collimation part, an inspection channel, an X-ray detector, an image acquisition and processing device, a control device and an operation console, wherein the inspection channel comprises an inlet, an outlet and a mobile inspection platform, the mobile inspection platform is a dual-circulation platform and comprises a first platform, a second platform, two upper tracks, two lower tracks, a platform driving mechanism, a platform lifting link mechanism and a base, the first platform and the second platform are respectively movably mounted on the upper tracks and the lower tracks and move along the reverse directions of the upper tracks and the lower tracks under the drive of the platform driving mechanism arranged on the outer side, and the upper and the lower positions of the first platform and the second platform on the lower tracks and the upper tracks are exchanged through the platform lifting link mechanism after running in place at each time. The ultra-low-dose X-ray human body security inspection system can double improve the inspection capacity and the customs clearance efficiency, have smooth running, good linearity and uniform movement speed and greatly improve the X-ray inspection imaging quality.

The invention discloses a medical transferring bed. The medical transferring bed comprises a vehicle body, and a moving bed board mechanism, wherein the moving bed board mechanism is mounted on a vehicle frame of the vehicle body; the moving bed board mechanism comprises an upper moving board, an upper moving cloth, a lower moving board, and a lower moving cloth; the lower moving board is arrangedbelow the upper moving board; the upper moving board and the lower moving board are in synchronous lateral movement forward or backward; the upper moving cloth is coated on the periphery of the uppermoving board; a locking strip is longitudinally fixed to the upper moving cloth; the locking strip is locked to the shuttling side of the upper moving cloth, or is moved along with the upper moving cloth after locking is released; the lower moving cloth is coated on the periphery of the lower moving board; two ends of the lower moving cloth are fixed to the vehicle frame of the vehicle body; andthe lower moving cloth is located on the shuttling side of the lower moving board. According to the medical transferring bed disclosed by the invention, the locking strip is arranged, so that a mannerof rotating a transmission cloth through driving rubber rollers in the prior art is replaced; and the structure of the moving bed board mechanism is simplified, no friction coefficient requirement ofmoving cloths is generated, the moving resistance is lower, and the consumed power is lower.

The invention discloses a land tamping machine for building. The land tamping machine comprises a machine body, and the machine body is composed of a driving wheel, a Maltese cross machine core, chain wheels and a cam; a base is fixedly connected with the upper end of the machine body, the driving wheel is connected with the lower end of the base in a rotary mode, the chain wheels are fixedly connected with the driving wheel, a driving lever is fixedly connected with the edge of the driving wheel, the Maltese cross machine core is arranged on the lower end of the driving lever, moving wheels are arranged on the lower end of the Maltese cross machine core, incomplete gears are arranged on the left end of the driving wheel, the chain wheels are fixedly connected with the incomplete gears, the cam is arranged on the lower ends of the incomplete gears, the cam is fixedly connected with a complete gear, a hanging beam is connected with the lower part of the cam in a rotary mode, and the lower parts of hydraulic telescopic rods are connected with pressing wheels in a rotary mode. According to the land tamping machine, the ground is flatted and tamped through pressing wheels, the uneven trails caused by the direct large stress impact from the rolling of rolling wheels are avoided, the driving wheel drives the Maltese cross machine core to make intermittent movements, when the machine body moves, the pressing wheels contract, and when the machine stops for a rest, the grinding work on the ground by the pressing wheels is dropped.

The invention discloses a desulfurization and denitration ammonia-removing system. The system comprises an adsorption tower, a desorption tower, a distributor, a first activated carbon conveyer and asecond activated carbon conveyer. One side of the adsorption tower is provided with a smoke inlet A, and the other side of the adsorption tower is provided with a smoke outlet B, the interior of the adsorption tower is provided with an adsorption cavity and an ammonia-removing cavity, the adsorption cavity is installed at one side adjacent to the smoke inlet A, the ammonia-removing cavity is installed at one side adjacent to the smoke outlet B, the first activated carbon conveyer is connected with a discharging port of the adsorption tower and a feeding port of the distributor, the second activated carbon conveyer is connected with a discharging port of the desorption tower and a feeding port of the adsorption cavity, a discharging port of the distributor is respectively connected with a feeding port of the ammonia-removing cavity and a feeding port of the desorption tower. The system adopts a mode that the adsorption tower is divided to two functional areas. The adsorption reaction cavity is capable of achieving the functions of desulfurization, denitration, dust removal and the like. The ammonia-removing cavity is filled with fresh activated carbon or acidic activated carbon, andis capable of gathering ammonia in smoke passing through an adsorption reaction layer, and effectively preventing the ammonia at the outlet from escaping.

A balanced-lighting stereoscopic seedling raising rack is characterized in that tray tier-based transfer racks are disposed at two ends of a stereoscopic seedling raising rack of floating raising trays, tray floating troughs in multiple tiers are mounted on transverse braces of the stereoscopic seedling raising rack, a chain is mounted on sprockets, arranged at the inner upper and lower ends of a support of each tray tier-based transfer rack, in an enclosing manner, the middle of each transfer rack is fixed on a holder, sliders on each holder are fastened to a slide post of a support, a rope lock on the lower portion of each holder is fixed on the corresponding chain, a counting probe for counting the seedling raising trays is mounted at the front end of each transfer rack, a tray pushing cylinder is mounted at the rear end of each transfer rack, a tier positioning probe for the tray floating troughs is mounted at the rear end of each support, and an air pump and an electrical box are mounted on the support of one tray tier-based transfer device. The seedling raising trays float in the seedling raising troughs and experience small motion resistance, the seedling raising trays can be moved between the transfer racks and the seedling raising troughs through only one cylinder, the transfer racks can be driven to raise and lower the seedling raising trays by a single motor, manufacturing cost of equipment cost is low, and consumption is low; the design of tier positioning and tray counting probe control is adopted, and automatic production control is achieved.

The invention discloses multifunctional wood machining equipment and belongs to the field of wood machining equipment. A running vehicle comprises a movement and driving devices moving along X-axis direction, Y-axis direction and Z-axis direction, at least two rotating spindles taking vertical direction as axis are arranged at the front end of the movement, a knife is arranged at the lower end of each spindle, and multiple rows of blades are arranged around each knife, distances between the blades on different spindles and cut wood are difference, the spindles are rotatably connected with a motor respectively, multiple top discs different in diameter are arranged on a top tip seat and a top tip of a tail seat, a rolling device along the X-axis direction is arranged on the lower portion of the tail seat, and a control panel is arranged on the multifunctional wood machining equipment. By the multifunctional wood machining equipment, production efficiency can be improved, labor intensity of operating personnel can be lowered, machining diameter can be expanded, machining variety can be increased, and sales market can be expanded.

The invention discloses an underground pipeline dredging method. The underground pipeline dredging method is characterized in that sludge in a pipeline is gathered to a designated position through a pipeline dredging device and then removed out of the pipeline through external force. By means of the underground pipeline dredging method, the dredging effect of the pipeline can be effectively improved, the amount of sludge in the pipeline is greatly lowered, the occurrence ratio of sludge in the pipeline is controlled below 5%, smoothness of the pipeline is ensured, and drainage efficiency of an urban drainage system is improved.

The invention discloses an infection-prevention medical transfer bed. The medical transfer bed comprises a trolley body and a bed board moving mechanism, wherein the bed board moving mechanism is arranged on the frame of the trolley body, and comprises an upper moving plate, an upper moving cloth, a lower moving plate and a lower moving cloth; the lower moving plate is arranged under the upper moving plate; the upper moving plate and the lower moving plate synchronously move forward or backward transversely; the periphery of the upper moving plate is coated with the upper moving cloth, lockingbars are longitudinally fixed on the upper moving cloth, are locked on the pick-up side of the upper moving cloth by a locking bar driving mechanism or move along with the upper moving cloth after locking is released; the periphery of the lower moving plate is coated with the lower moving cloth, two ends of the lower moving cloth are fixed on the frame of the trolley body and are positioned on the pick-up side of the lower moving plate. The transfer bed further comprises an isolating pad spreading mechanism. According to the infection-prevention medical transfer bed, the upper moving cloth, the lower moving cloth and a hospital bed are prevented from being polluted in a process of picking up patients due to the isolating pad spreading mechanism.

The invention relates to a desulfurization and denitration device for efficient denitration. The device comprises an adsorption tower (1), a desorption tower (2), a gas mixer (3), a first activated carbon conveyor (4), a second activated carbon conveyor (5) and an activated carbon material bin (AC) arranged above the adsorption tower (1), wherein a smoke inlet (A) is formed in one side of the adsorption tower (1), a smoke outlet (B) is formed in the other side of the adsorption tower (1), a first gas pipeline (L1) led out from the gas outlet of the gas mixer (3) is connected with the gas inletof the activated carbon material bin (AC), a second gas pipeline (L2) led out from the gas outlet of the gas mixer (3) is connected with the smoke inlet (A), and a third gas pipeline (L3) led out from the gas outlet of the activated carbon material bin (AC) converges with the second gas pipeline (L2). The desulfurization and denitration device provided by the invention adopts activated carbon foradsorbing partial ammonia in advance; meanwhile, partial ammonia is sprayed into the middle part of the adsorption tower again for enhancing a denitration effect.

The invention discloses a dust collector floor brush comprising a floor brush body, and a lifting structure used for adjusting the height between the floor brush body and the floor; the bottom of the floor brush body is provided with an air inlet cavity allowing dust-containing air to enter; the lifting structure comprises a lifting board capable of moving up and down and used for lifting the floor brush body; the projection of the lifting board on the floor is in a projection zone of the air inlet cavity on the floor; the lifting board is connected with the air inlet cavity in a sealing manner through a soft sealing leather ring; the bottom of the lifting board is provided with bunchiness brushing making contact with the floor; the height between the floor brush body and the floor can be adjusted according to needs, thus greatly reducing mobile resistance of the dust collector floor brush in usage, improving floor dedusting efficiency, and providing very good practice values.

The invention discloses an electric automobile rear axle assembly hoisting conveying device and method and transfer equipment in the technical field of automobile assembling. The device comprises a body support which is of a cross-shaped structure and is formed by welding and combining a cross beam and a longitudinal rod. The top and the bottom of the cross beam are provided with a wheel groove and an adjusting rack in the length direction correspondingly. Sliding assemblies are symmetrically arranged on the left side and the right side of the cross beam. The inner sides of the sliding assemblies are provided with hoisting conveying tight holding blocks relative to the longitudinal rod in a left-right symmetry manner. Hoisting conveying hoisting rings are arranged on the tops of the hoisting conveying tight holding blocks. The two ends of the longitudinal rod are provided with fixing tight holding blocks relative to the cross beam in a front-back symmetry manner. Longitudinal fixing hoisting rings are arranged at the bottoms of the fixing tight holding blocks. Each sliding assembly comprises a sliding block shell, moving wheels, a transmission gear, an adjusting worm, an adjustingrocker and a transverse fixing hoisting ring. The electric automobile rear axle assembly hoisting conveying device and method and the transfer equipment are provided, usage is safe, and adjustment isconvenient.

The invention relates to a pipeline washing and pipeline maintaining device, in particular to a bore scrubbing device. Since carbon is accumulated inside a bore and mixtures of carbon and metal filing are generated on a rifling of the bore after a gun is used, the bore scrubbing device is used for scrubbing the bore so as to improve the gun precision. The bore scrubbing device comprises a head scrubbing head device, a reciprocating drive device and a brake device, and is characterized by further comprising a head-tail linkage device and a tail scrubbing head device; the head scrubbing head device is driven by the reciprocating drive device; the brake device is used for fixing the bore scrubbing device to the inner wall of the bore; and the head-tail linkage device is used for correlating the tail scrubbing head device with the head scrubbing head device. The bore scrubbing device has the advantages that as the head scrubbing head device and the head scrubbing head device are adopted, an additional bore does not need to be additionally arranged, and comprehensive scrubbing can be achieved; and due to supporting of the head and tail, the axis of the bore scrubbing device is prevented from inclining relative to the axis of the bore, movement resistance of the bore scrubbing device is reduced, two-end scrubbing is conducted simultaneously, and the effect is remarkably improved.

The invention relates to a multifunctional floor brush comprising a floor brush surface cover, a floor brush base plate, an air inlet arranged on the floor brush base plate and for dust-containing air flow entrance, and a floor brush connection pipe connecting a dust collector. A brush bar scraping dust on the floor and a first elevating structure driving the brush bar to move up and down are arranged close to the air inlet, and a second elevating structure lifting the floor brush base plate to change a distance between the floor brush base plate and the to-be-cleaned floor. The multifunctional floor brush can meet a demand of high dust collecting capacity of ERP and use comfortableness and flexibility under different conditions; mobile resistance of the floor brush can be reduced; large particles can be easily absorbed, so damage to the floor by large particles can be reduced; and the multifunctional floor brush has great practical meaning.

A roller supporter for long-distance heavy-load drag chain features that the one end of the said drag chain is fixed to the foundation in the center of the roller supporting system and after passing through several roller, the another end of the said drag chain is fixed to its connection frame. The robot, speed-reducing drive motor and the connection frame are fixed to the baseplate of a moving carriage. Its advantages are no overbending of drag chain, long service life of drag chain, low resistance of carriage, and simple structure.

The invention discloses a raw-hole reverse-pushing construction plan used for a horizontal directional boring. The plan includes the following: step 1, guiding hole boring procedure; step 2, reversing hole-enlarging procedure that a reverse-enlarger is connected with a tail end of a bore rod of a soil outlet end and the reverse-enlarger is used for reversely enlarging the hole from the soil outlet end to a soil inlet end; step 3, raw-hole reverse-pushing enlarging procedure that a reverse-pusher is connected with a tail end of the bore rod of the soil inlet end and a moving face of the reverse-pusher faces the soil outlet end, and the reverse-pusher is used for reversely enlarging the hole from the soil inlet end to a soil outlet end in the raw-hole channel; step 4, pipeline reverse-dragging procedure that when the hole channel diameter is larger than that of the reverser-dragging pipeline after enlarging, a reversely dragged pipeline is connected with a back end of the reverse-enlarger and a pipeline reverse-dragging work is carried out in the hole channel to realize a non-digging underground transmission of the pipeline. The invention can repeat the step 2 and the step 3. The invention overcomes a defect that a non-digging construction is always limited by a site condition of the soil outlet end and a practicality of the plan is enhanced. The invention also provides a raw-hole reverse-pusher used for the construction plan.

The invention discloses an electrically controlled manual locking mechanism of a sliding-plug door and the sliding-plug door applying the electrically controlled manual locking mechanism, and belongsto the technical field of electric door equipment. According to the electrically controlled manual locking mechanism of the sliding-plug door, opening and closing of the sliding-plug door can be stillachieved in the case of power failure. According to the technical scheme of the electrically controlled manual locking mechanism, the electrically controlled manual locking mechanism of the sliding-plug door comprises an electromagnet arranged on a door frame and a locking dog moving together along with the sliding-plug door, one end of an armature in the electromagnet is fixedly connected with alocking rod, the locking rod extends out to the exterior of the electromagnet, and the electromagnet is internally provided with a first compression spring used for pushing the armature outwards; theend, away from the locking rod, of the armature is provided with a traction piece used for manually dragging the armature to move in the direction away from the locking rod; and the locking dog is provided with a locking hole for allowing the locking rod to be inserted into for locking, and the end, facing the locking rod, of the locking dog is provided with a wedge-shaped surface used for jacking the locking rod to the interior of the electromagnet.

The invention discloses lithium-ion battery electrolyte with high fire retardant and electrochemical properties and a preparation method thereof. The lithium-ion battery electrolyte contains a solvent, lithium salt, a fire retardant and additives. The preparation method comprises the following steps: S1, dissolving the lithium salt into an organic solvent to obtain electrolyte with the concentration of 0.8-1.2mol / L; and S2, adding the fire retardant and additives to obtain fire retardant electrolyte, wherein the mass percentage content of the fire retardant accounts for 10-50% of the total mass of the fire retardant electrolyte, and the usage amount of the additive accounts for 1-10% of the total mass of the electrolyte. The lithium-ion battery electrolyte with high fire retardant and electrochemical properties has the advantages that the additive is added in the electrolyte for a lithium ion battery, and meanwhile, an additive or an additive composition which can prevent the fire retardant from degrading electrochemical properties of the electrolyte is added, so that the electrolyte has fire retardant property or noninflammability, and the security of the battery is improved; meanwhile, the influence on the electrochemical properties of the battery caused by the fire retardant is overcome, so that the properties of the battery are excellent.

An object of the present invention is to expand a dispensable diameter range of a coin dispenser that can dispense coins having diameters within a predetermined range without the need of part replacement and some sort of adjustment. Coins are dropped into and sorted by through holes one by one by forward rotation of a rotating disk, are guided by a circular coin guiding wall of a storage hole while the coins are pushed by pushers on a lower surface, the coins are then guided in the circumferential direction of the rotating disk by an outlet rotor constituting an outlet guide, are guided by a hopper, and are ejected by an ejecting roller. If coin jamming occurs, the rotating disk is rotated backward, and the coin pushed by a rear surface tip of the pusher is guided by a cylindrical surface of the outlet rotor. Since it is the cylindrical surface, the angle formed by the pushing force by the pusher and the reactive force from the outlet rotor is increased, the coin is returned into the storage hole, backward rotation can be continued, and the coin jamming can be eliminated.

The invention relates to a new beef freshness rapid nondestructive detection device and detection method, and solves the problems, in the prior art, of subjective inaccuracy of beef freshness detection and complex detection equipment and detect process. The device comprises a seat body, the seat body is provided with a floating pool, a tray floats in the floating pool, the tray is controlled to move through magnetic force, an adjustment bracket is arranged above the seat body, the adjustment bracket is provided with a light source, and the seat body is also provided with a control unit. The control unit analyzes sample reflectance spectra data to judge the degree of beef freshness. The advantages of the new beef freshness rapid nondestructive detection device are that, by using a spectral detection mode, nondestructive testing of samples can be carried out; the new beef freshness rapid nondestructive detection device is reasonable in structure, the seat body moving resistance is small, and the new beef freshness rapid nondestructive detection device does not jam, and is convenient in operation and maintenance, and accurate in detection data.

The invention relates to the technical field of mechanical production, in particular to an overturning workbench. The overturning workbench comprises a support base, a carrying platform and a lifting device, wherein the carrying platform is located on the upper portion of the support base, and the lifting device is installed in the support base. The carrying platform is hinged to the front side of the support base. The lifting device comprises a connecting rod, levers, a hydraulic cylinder and a counter weight. The inclination of the carrying platform is controlled according to the position where a workpiece is to be installed through the linkage and lever principles. Furthermore, a plurality of universal balls are distributed on the support base, the workpiece is placed behind the workbench, the universal balls can reduce the moving resistance of the workpiece, and the arrangement position, the arrangement direction and the like of the workpiece can be adjusted conveniently according to the position where the workpiece is to be installed.