95results about How to "Act as deceleration" patented technology

The invention provides a stability augmentation inflation type reentry vehicle. An umbrella-shaped inflation body is formed by an inflation type speed reduction cover and an instrument cabin. Four inflation type control surfaces are evenly distributed on the outer edge of the speed reduction cover. An air compressor and a control system are placed in an effective load cabin from bottom to top. A main valve of the air compressor is communicated with inflation openings of the control surfaces and inflation openings of the speed reduction cover through inflation pipelines respectively. In the stability augmentation inflation type reentry vehicle, the control surfaces and the speed reduction cover can be opened through an inflation device when used, and are put away after being used. The stability augmentation inflation type reentry vehicle is light in structural weight and convenient to design, machine, maintain, control and the like. Under the condition that the structure of the speed reduction cover does not need to be changed and no complex propelling systems need to be added, the aerodynamics characteristics required for control are obtained, the active control over the atmospheric reentry aircraft is achieved, and unsteady influences of complex eddy of the leeward area of the speed reduction cover on the posture of the reentry vehicle are avoided.

The invention discloses a supporting frame for a solar photovoltaic power generation board. The supporting frame comprises a bottom plate; a carrying plate is arranged horizontally on the bottom plate; the bottom plate is rotatably provided with a rotation reversal shaft; the upper end of the rotation reversal shaft is fixed at the bottom surface of the carrying plate; an annular guide groove is formed in the bottom plate; the side wall of the middle of an adjustment rod is rotatably provided with an auxiliary supporting rod; one end of the auxiliary supporting rod is hinged to the upper surface of an inclined supporting plate; the lower bottom surface of a sleeve plate is fixedly provided with a sliding plate; and the lower bottom surface of the sliding plate is fixedly provided with a toothed bar. The supporting frame is convenient to adjust; a limiting spring is arranged in a sliding cavity; when the solar photovoltaic panel is subjected to wind loading, buffering and damping can berealized by means of the deformation, elongation and contraction of the limiting spring, so that the wind loading can be weakened, and therefore, the stability of the solar photovoltaic panel can beimproved; the angle of the solar photovoltaic panel can be adjusted in a vertical plane and a horizontal plane, so that the solar photovoltaic panel can adapt to a variety of different illumination environments and absorb sunlight illumination more fully, and therefore, the power generation efficiency of the solar photovoltaic panel can be ensured.

The invention relates to a massage armchair which comprises a massage armchair framework and a massage device. The massage device comprises a mounting rack, a massage assembly and a walking assembly,the massage armchair framework comprises a backrest framework and a seat framework, the backrest framework is provided with a first guide rail, the position, corresponding to the first guide rail, ofthe seat framework is provided with a second guide rail, the backrest framework is hinged to the seat framework, and an adjusting assembly for adjusting an angle of the backrest framework is arrangedbetween the backrest framework and the seat framework. The walking assembly comprises first and second driving walking shafts rotatably arranged on the mounting rack, wherein the first driving walkingshaft is parallel to the second driving walking shaft, and the first driving walking shaft and the second driving walking shaft can perform reciprocating motions between the first guide rail and thesecond guide rail. By adopting the scheme, the angle of the backrest framework can be adjusted, the mounting rack can perform reciprocating slippage between the backrest framework and the seat framework, and the massage armchair has a massage function.

The invention discloses an unmanned aerial vehicle deceleration and damping undercarriage. The unmanned aerial vehicle deceleration and damping undercarriage comprises a fuselage installation plate, a steering arm, a flange connecting assembly, a steering shaft, a tension spring, a plurality of bolts, an unmanned aerial vehicle wheel bracket and an unmanned aerial vehicle wheel. The flange connecting assembly is arranged on the fuselage installation plate. The steering shaft is connected to the flange connecting assembly in an insertion mode. The steering arm is fixedly connected to the steering shaft through the bolts. The steering shaft is fixedly connected to the unmanned aerial vehicle wheel bracket through the bolts. The unmanned aerial vehicle wheel is arranged on the unmanned aerial vehicle wheel bracket. One end of the tension spring is fixedly connected to the steering shaft, and the other end of the tension spring is fixedly connected to the unmanned aerial vehicle wheel bracket. According to the unmanned aerial vehicle deceleration and damping undercarriage, the lever principle is applied, and the upward pressure of the unmanned aerial vehicle wheel is buffered through the tension spring; when the pressure exceeds the tensile force of the tension spring, the tension spring pulls the steering shaft to move downwards; and the lower end of the steering shaft which is pressed to be low is lower than the bottom of the unmanned aerial vehicle wheel and in direct friction with the ground, so that a deceleration effect is achieved, and the landing run distance is greatly shortened.

The invention discloses a large aperture type diaphragm adjusting device comprising a mounting rack; a diaphragm adjusting mechanism and a drive device are arranged in the mounting rack; the drive device is used for driving the diaphragm adjusting mechanism to rotate, thus changing the aperture sizes; the diaphragm adjusting mechanism comprises a driving wheel and a driven wheel; the peripheries of the driving wheel and the driven wheel are fixedly connected via a plurality of roller shafts arranged at intervals in the peripheral direction, thus forming a cage-like structure; an aperture adjusting assembly is arranged in the cavity of the driving wheel and the driven wheel, and comprises a spiral fixed loop and a plurality of diaphragm sheets arranged at intervals in the peripheral direction of the spiral fixed loop, wherein a light through hole with an adjustable aperture is enclosed in middle of the plurality of diaphragm sheets. The large aperture type diaphragm adjusting device uses the drive device to drive the diaphragm adjusting mechanism to rotate so as to change the aperture sizes; the diaphragm sheet is provided with a photoreceptor used for perceiving a light beam signal; the photoreceptor perceives the light beam signal and feeds the signal to the control center, thus continuously and automatically adjusting the light through hole aperture sizes.

The invention discloses an active steering and coupling device based on double-row planetary gear trains for automobile front wheels. The active steering and coupling device is installed between a steering wheel and a steering gear and comprises a power drive device installed on a shell and a mechanical transmission device installed inside the shell; the power drive device comprises an assistance rotation angle motor, a turbine and a worm meshing with the turbine; the mechanical transmission device comprises a planetary gear train I and a planetary gear train II, wherein the planetary gear train I and the planetary gear train II are arranged in parallel; a sun wheel of the planetary gear train I is coaxial with a sun wheel of the planetary gear train II, and a planet carrier I is fixed to the shell; partial power manually input is transmitted to a gear ring I through an input shaft, then is input into the planetary gear train I through the gear ring I and finally is output to the planetary gear train II from the sun wheel I; partial power of the assistance rotation angle motor is transmitted to a planet carrier II through the turbine and the worm; and the sun wheel II and the planetary gear train II jointly serve as input, and a coupled rotation angle is output outwards through a gear ring II. According to the device, mechanical connection is adopted, machining is convenient, transmission with a variable transmission ratio is realized, and the steering process is safe and flexible.

The invention discloses a moving heating device. The moving heating device comprises a moving seat; a first roller and a second roller are arranged on the moving seat; a second mounting groove is formed in the moving seat; a first mounting plate is arranged on the second mounting groove; first spring rods are symmetrically arranged on one side of the first mounting plate; the other end of each first spring rod is fixedly connected onto the side wall of the second mounting groove; and two first mounting grooves are symmetrically formed in the second mounting groove. The moving heating device issimple in structure and easy to operate, first-time shock absorption is completed by the aid of the first spring rods, second-time shock absorption is completed by the aid of second mounting blocks and second spring rods, and third-time shock absorption is completed by the aid of damping oil and air bags under the effect of buoyancy of water, so that equipment parts are protected, and the servicelife is prolonged; and then under the interaction of structures such as an elastic string, a pull plate, a second cam and the like, a friction plate can be pressed downwards to abut against the second roller to have the deceleration effect.

The invention provides an air compression energy storing device for a road and belongs to the technical field of compressed air preparation. The air compression energy storing device aims at preparing compressed air by utilizing energy produced by crushing of a deceleration strip by vehicles in a road section on the road requiring arranging the deceleration strip. The air compression energy storing device comprises an air storing tank and is characterized by further comprising an air compression beam and a base. A plurality of pistons are arranged under the air compression beam. An up limit rod and an air compression beam rack are sequentially arranged under two ends of the air compression beam from inside to outside. The base is provided with an air compression chamber matched with the pistons. An air feeding one-way valve and an air discharging one-way valve are arranged at the bottom of the air compression chamber. A limit cavity matched with the up limit rod and location gears matched with the air compression beam rack are arranged at two ends of the base. A resetting spring is arranged between the base and the air compression beam. The air compression beam rack is located between two rows of location gears. The air storing tank is communicated with the air discharging one-way valve at the bottoms of the pistons through a pipe.

A massage chair comprises a massage chair frame and a massage device, the massage device comprises a walking bracket, a massage assembly and a walking assembly, the massage chair frame comprises a backrest frame and a seat frame, a backrest frame guide rail is arranged on the backrest frame, the seat frame is provided with a seat frame guide rail, a backrest rack is arranged on the backrest guiderail, a seat frame rack is arrange at the corresponding backrest rack of the backrest rack guide rail, and a reversing member is rotatably arranged between the backrest frame and the seat frame. The reversing member is provided with a transition rack which is dislocated with the rack of the seat frame and the rack of the abutment frame respectively. The traveling assembly comprises a first traveling shaft and a second traveling shaft. The first traveling shaft is provided with a first gear which can be engaged with the rack of the abutment frame and the transition rack at the same time. The second traveling shaft is provided with a resisting member for driving the reversing member to turn over. By adopting the scheme, the angle of the backrest frame can be adjusted, and the massage devicecan reciprocate and slide between the backrest frame and the seat frame, so that the massage device has a massage function.

The invention provides sewage discharge and treatment equipment for cities. The sewage discharge and treatment equipment comprise a sewage collecting tank, a primary residue filter screen, a protruding filter screen, a water inlet pipe, an arc-shaped water baffle, a sundries pressing block box structure, a gravel filtering through pipe structure, an oblique water guide pipe, a sewage precipitate filter box structure, a first water guide pipe, a sewage sterilizing and purifying box structure, a second water guide plate, a sewage detection box, a water quality detector, a sewage circulating discharge guide pipe structure, a protective shell and a controller, wherein the primary residue filter screen is transversely embedded into the upper portion of the inner side of the sewage collecting tank. The sewage discharge and treatment equipment has the advantages that by the protruding filter screen, floating objects in the sewage can be conveniently separated from the sewage, and the floatingobjects can be prevented from attaching to the primary residue filter screen so as to prevent the normal use of the primary residue filter screen from being affected; by a longitudinal separation screen, a gravel layer and a quick lime layer, the gravel layer can be separated from the quick lime layer, and the gravel layer and the quick lime layer can improve the removing and filtering effects onmicro-particle sundries in the sewage.

The invention relates to a rotary valve. The rotary valve comprises a dust removal device (6), an air pipe (5) and a sedimentation dedusting device (1). The dust removal device (6) comprises an inclined dust removal passage (61), and the top of the dust removal passage (61) is provided with a feeding port (63) while the top of the dust removal passage (61) is provided with a discharging port (64). The upper side of the dust removal passage (61) is provided with a funnel shaped connection port which is connected with the discharging port (64), and a plurality of air adjusting valves (7) are arranged on the lower side of the dust removal passage (61). The sedimentation dedusting device (1) is a cubic shell with the bottom connected with a 'V'-shaped funnel (103), the lateral surface of one end of the sedimentation dedusting device (1) is provided with a sedimentation outlet (101) while the lateral surface of the other end of the sedimentation dedusting device (1) is provided with a sedimentation inlet (102), a housing (3) is arranged outside the sedimentation dedusting device (1), and the sedimentation outlet (101) is connected with an external dust collector. The rotary valve is simple in structure and high in dedusting efficiency.

The invention relates to an automatic cotton kneading device including a main frame; the main frame is constructed by a structural steel framework; opposite side walls of a pillar A of the main frame and a pillar D of the main frame and opposite side walls of a pillar B of the main frame and a pillar D of the main frame are each provided with a slide rail; the slide rails are provided with a lifting frame; the lifting frame includes a sliding horizontal column A, a sliding horizontal column B and a ladder-shaped frame; the ladder-shaped frame is provided with a steel frame and a drive motor B; the center of the steel frame is provided with a transmission shaft; the drive motor B is connected with the transmission shaft by a belt; the lower end of the transmission shaft is connected with a connection shaft; the lower end of the connection shaft is connected with a cotton kneading plate; a cotton supporting plate is arranged below the cotton kneading plate; the right side of the main frame is provided with a drive motor A and a speed reduction motor; the speed reduction motor is connected with a wire coiling shaft; the top of the main frame is also provided with a wire tapping shaft; the wire coiling shaft is provided with a turn ring; the turn ring is wound with eight steel wire ropes; the eight steel wire ropes are respectively fixed on hanging ears of the sliding horizontal column A, hanging ears of the sliding horizontal column B and hanging ears of the cotton kneading plate.

The utility model provides a belly pipe with a pulverized coal burning function, which comprises a premix burner and a burner. The premix burner and the burner are connected through a flange; hot-blast air and pulverized coal simultaneously enter from the inlet of the premix burner; an internal channel in the premix burner is of a reducing pipe structure; the diameter of the outlet of the premix burner is less than that of the inlet of the premix burner and is equal to that of the inlet of the burner; a suddenly expanding combustion chamber is arranged in the burner; the inner diameter of the combustion chamber is greater than the diameter of the inlet of the burner, whereas the outlet section of the burner is also of a reducing pipe structure; and the diameter of the outlet of the burner is less than the inner diameter of the combustion chamber and is also less than the diameter of the inlet of an air inlet. Due to the fact that the pulverized coal starts to be injected into the hot-blast air nearby the inlet of the premix burner, equivalently the existing pulverized coal injected into a blast furnace is injected into the blast furnace again after being burnt outside the furnace, thus, the burning rate of the injected pulverized coal is greatly improved and the burning amount of the pulverized coal in the hot-blast air is increased, thereby the amount of the injected pulverized coal which can be accepted by the blast furnace is obviously increased. At the same time, partially burnt pulverized coal causes the volume and the temperature of combustion products to be increased sharply and the blast kinetic energy is also obviously improved, and therefore, the beneficial effect of improving the work of a blast furnace hearth is brought.

The invention belongs to the technical field of road blocking equipment for highways, and particularly relates to a road blocking device for preventing vehicles from rushing through a highway toll station. A rain shelter is arranged above a toll station passing road section, and the toll station passing road section is sequentially provided with two laser sensors, a barrier machine, a barrier naildevice, an anti-collision barrier device and a barrier column device. A nail body arranged on the barrier nail device is connected with a barrier nail driving device through a connecting mechanism; the anti-collision barrier device comprises a barricade anti-collision barrier, an anti-collision barrier sliding rail and an anti-collision barrier driving device; the barrier column device comprisesa plurality of hidden holes; column bodies are installed in the hidden holes in a sliding mode; and lifting electric cylinders connected with the column bodies are arranged at the bottoms in the hidden holes. According to the device, when a sudden rushing through event occurs, the vehicles rushing through the barrier can be automatically intercepted, the vehicles are effectively prevented from rushing through the barrier, meanwhile, the warning effect can be improved, the understanding of drivers on rushing through the barrier is changed, and finally the problem of vehicle rushing through of the highway toll station is solved.

A system for storing, releasing and reutilizing vehicle inertial force is provided. The invention discloses a system including a driving shaft for driving vehicle wheel to rotate, an air motor, a clutch and an air storage bottle. The air motor is connected with the driving shaft through the clutch. The air storage bottle supplies air to the air motor when the vehicle starts up; the clutch facilitates the air motor to be connected with the driving shaft, and the air motor drives the driving shaft to rotate. The clutch facilitates the air motor to be separated from the driving shaft when the vehicle normally drives; the clutch facilitates the air motor to be connected with the driving shaft when the vehicle brakes, the driving shaft drives the air motor to rotate, and the air motor generates air and aerates the air storage bottle through an escape pipe. The system can effectively reduce oil consumption when the vehicle starts up, and reduce discharge of tail gas of the vehicle. The driving shaft can drive the air motor to aerate the air storage bottle when the vehicle brakes so that the air storage bottle can keep enough pressure. Simultaneously, the air motor also can provide certain resistance to the driving shaft so as to reduce speed and enhance the brake effect of the vehicle.

The invention relates to an intelligent speed bump with a hardness adjusting function. The intelligent speed bump comprises a base, a deceleration mechanism, a center control mechanism and two washingmechanisms. The deceleration mechanism comprises a supporting rod, an adjusting assembly, a first supporting board, two second supporting boards, two sliding blocks, two transmission rods, two push rods and two connecting boards. Each washing mechanism comprises a second opening, a rotary board, an air cylinder and a nozzle. In the intelligent speed bump with the hardness adjusting function, through the deceleration mechanism, an automobile can be decelerated when quickly passing through the speed bump and can smoothly pass through the speed bump when slowly passing through the speed bump, sothat jolts of the automobile are reduced, and the practicability of the speed bump is improved; and through the washing mechanisms, mud on the speed bump can be completely washed away, so that the probability that wheels slip on the speed bump is reduced, and the traveling safety is improved.

The invention provides an energy harvesting type speed reducing mechanism, and relates to the technical field of power generation of deceleration strips. Comb tooth ends are arranged on a front vehicle passing surface and a reverse vehicle passing surface of a deceleration strip, are inserted in each other's tooth gaps, and are in pin connection with each other by a latch, and the other ends of the front vehicle passing surface and the reverse vehicle passing surface are separately fixed to the upper portion of a case; a transverse plate is arranged on the lower portion of the deceleration strip, a spring guide rod and a reset spring are arranged on the bottom of the transverse plate, one end of a front connecting rod is hinged to the lower portion of the front vehicle passing surface through a cylindrical pin while the other end is hinged to a front bent axle; one end of a rear connecting rod is hinged to the lower portion of the reverse vehicle passing surface through a cylindrical pin while the other end is hinged to a rear bent axle; a first shaft is fixed to a first gear wheel engaged with a first pinion, the first pinion is fixed to a gear ring of a differential gear train, asecond shaft of the front bent axle penetrates through the first pinion and the gear ring and is fixed to a sun gear of the differential gear train, an output shaft of a planet carrier is fixed to asecond gear wheel engaged with a second pinion, and the second pinion is fixed to an input shaft of a generator.

The invention discloses a building entrance barrier gate lighting trigger based on image analysis and a using method thereof. The building entrance barrier gate lighting trigger comprises a mounting groove formed in the ground and provided with an upward opening and a lamp pole fixedly mounted on the ground, a collecting groove which is provided with an upward opening and penetrates left and rightis formed in the lamp pole, and a gun camera is fixedly arranged between the front wall and the rear wall of the collecting groove. According to the invention, illumination can be provided for the night gun camera to capture a vehicle license plate, so that image information of the vehicle license plate captured by the gun camera is ensured to be clear and comparison processing with vehicle information in a database is more convenient; deceleration strips can play a role in decelerating passing vehicles, and dangers caused by too high vehicle speed when the vehicles converge into traffic flowat entrances and exits or drive into parking lots are avoided; and the pressure sensor is arranged and can detect the gravity of passing vehicles, so that whether the vehicles are overweight or not is judged, and road surface collapse caused by overweight of the vehicles is avoided.

The invention provides a speed control system for a drive axle. The system comprises a driving motor, a planetary gear train and an executing mechanism, wherein the input shaft of the planetary gear train is connected to the output shaft of the driving motor and the executing mechanism is arranged on the planetary gear train for separating or uniting different components of the planetary gear train. By controlling separation or union of the different components of the planetary gear train by means of the executing mechanism, that is, control of locking, the relative movement relationship of different components of the planetary gear train is changed to obtain different transmission ratios, so that the rotating speed of the motor is adjusted at different transmission ratios to adjust the vehicle speed; the system operates at a relatively great transmission ratio during starting or low speed operation, so that the drive force is amplified hugely and the demand on motor power and torque are reduced; the system operates at a relatively small transmission ratio during high speed operation, so that the demand on the highest rotating speed of the motor is met, the problems of NVH, sealingproperty and durability caused by high speed operation of the motor are avoided, and the demand on the highest vehicle speed and power of the vehicle is met.

The invention discloses an anti-collision entrance guard, and the entrance guard comprises a base station; a speed reducer is arranged at the front end of the base station, a U-shaped frame is fixedly installed in the middle of the upper end of the base station, a sliding groove is formed in the middle of the upper end of the U-shaped frame, a sliding blocking device is arranged on the groove wall of the sliding groove, and a telescopic driving device is arranged on the upper portion of the opposite face of the sliding blocking device. The lower portions of the outer surfaces of the two telescopic driving devices are each provided with a buffer device, the middles of the opposite faces of the two sliding blocking devices are each provided with an access control device, a containing groove is formed in the front side of the middle of the upper end of the base table, and a protection device is arranged on the groove wall of the containing groove. According to the anti-collision entrance guard disclosed by the invention, the telescopic rod drives the L-shaped plate to move upwards, so the rubber layer moves upwards to be in contact with the rear side of the entrance guard gate when the connecting plate is driven to move upwards, and the arranged rubber layer plays a role in buffering when the entrance guard gate is impacted, so the entrance guard gate is protected, and the maintenance economic cost is reduced.

The invention relates to the technical field of steering systems, in particular to an electric power steering device of a new energy vehicle, which includes steering assist mechanisms, an electric power module and a safety detection module, A steering assist mechanism includes a steering wheel, the steering wheel is connected with a steering input shaft, A rack and pinion steering gear is connected to the steering input shaft, A rack and pinion steering gear is connected with a tie rod, The tie rods are attached to the wheels, the steering input shaft is connected with a reduction mechanism, Aleft side of that speed reduce mechanism is connected with a clutch, A boost motor is connecting to that left side of the clutch, the electric power module comprises an ECU controller, Angle sensor,torque sensor, The safety detection module comprises a fault detection device, a single-chip processor, an alarm and a central control display screen. The invention can solve the problem that the current electric power steering device lacks fault detection and safety early warning, so that the driver cannot find out in time in the driving process, and the safety hidden trouble exists.

The invention relates to a front disc and rear disc combined hand brake system which comprises a front brake cylinder, a rear brake cylinder, a front pump, a rear pump and multiple oil pipes. The front brake cylinder and the rear brake cylinder implement hydraulic braking in the manner that oil cylinders push brake pads. The system further comprises a tee joint connecting piece for dividing a rear brake oil way into two parts. The front brake cylinder is provided with two or more oil cylinders and two oil inlets, one oil inlet is connected with the front pump through the corresponding oil pipe, and the other oil inlet is connected with the first end of the tee joint connecting piece through the corresponding oil pipe. The rear brake cylinder is provided with one or more oil cylinders, an oil inlet is connected with the second end of the tee joint connecting piece through the corresponding oil pipe, and the third end of the tee joint connecting piece is connected with the rear pump through the corresponding oil pipe. Front disc and rear disc combined braking can be conducted by rotating a rear brake handle, the oil way is divided into two parts through the tee joint connecting piece, and meanwhile the front brake cylinder is driven to brake a front wheel, and the rear brake cylinder is driven to brake a rear wheel.

A lifting control device of an electric drive airer comprises a motor, a transmission mechanism, a rope winding wheel, an upper limit control mechanism and a lower limit control mechanism. The transmission mechanism comprises a worm and a first transmission gear. The diameter of the first transmission gear is smaller than that of the rope winding wheel. The upper limit control mechanism and the lower limit control mechanism each comprise a first contact switch, a pinion, a driving wheel, a regulating wheel, a fixed disc and a spring. The rope winding wheel drives the driving wheels to rotate through the pinions. The driving wheels drive the regulating wheels to rotate through meshing of first meshing threads and second meshing threads. A convex part of each regulating wheel controls a motor to stop. A clamping structure with a through hole and a slot is disposed on a rope winding part. The through hole is formed in the radial direction, and the slot extends circumferentially to be connected with a rope winding groove. Large torque can be output by the small-size motor, and the rope winding wheel can have a smaller diameter and a smaller thickness, so that the whole lifting controldevice is light, thin and small; the limit control mechanisms are simple and compact in structure, convenient to install and easy to adjust; and a clothes airing rope is easy and convenient to installand replace.

The invention relates to a waist and back rehabilitation device with bevel gears and a swing guide rod mechanism. The device comprises a rack, a driving mechanism, a cam mechanism and a crank slide block mechanism, the crank slide block mechanism is further connected with a gear and rack mechanism and the swing guide rod mechanism, and the gear and rack mechanism is connected with the swing guiderod mechanism through a bevel gear set I; the swing guide rod mechanism is connected with a massaging head, through the combination of simple mechanism structures, multi-functional massaging for the waist and the back is achieved, muscles of the waist and the back are effectively relaxed, and discomfort of the waist and the back is reduced; the device is simple in structure, low in cost and applicable to the public.

The invention relates to a novel sprue cup. The novel sprue cup comprises a main body, a sprue, and a sand box for wrapping the outer side of the main body; the main body comprises a first pouring cavity and a second pouring cavity symmetrically arranged, and a flowing cavity positioned between the first pouring cavity and the second pouring cavity; a first inclined runner is formed between the first pouring cavity and the flowing cavity; a second inclined runner is formed between the second pouring cavity and the flowing cavity; transverse stoppers are arranged in the intersections of the flowing cavity with the first inclined runner and the second inclined runner; side stoppers are arranged on two side walls of the flowing cavity; and the side stoppers are positioned on two sides of the sprue, and are positioned on the same straight line with the sprue. Two pouring cavities are adopted to satisfy mobile or fixed liquid charging of multiple ladles, so that high-capacity casting of above 30 t can be satisfied, and the working efficiency is improved; and in addition, symmetric side stoppers are arranged on two sides of the sprue for preventing molten metal from forming swirls in the sprue to prevent suction of impurities and air into a casting mold, so that the casting quality and the casting performances are guaranteed.

The invention discloses a pitch road with a decelerating rope. The pitch road is characterized by comprising a roadbed and a pitch pavement, the roadbed is internally provided with several bases, and supporting plates are arranged at the bottoms of the bases; each base is provided with several bracing plates of which the top walls are arch faces, limiting grooves which are matched with the bracing plates are formed in the top walls of the bases in a sunken mode, and trapezoidal fixed grooves are formed in the top walls of the bracing plates in a sunken mode; the bracing plates are located below the pitch pavement, and the pitch pavement arches at the bracing plates to form the decelerating slope. The pitch road with the decelerating rope has the advantages that the purpose of decelerating vehicles is achieved, and meanwhile the service life of the road is prolonged.

The invention discloses a buffer type highway guardrail for a hillside dangerous road. The buffer type highway guardrail includes two handrails, the opposite side walls of the two handrails are jointly and fixedly connected to a buffer strip, a buffer mechanism is arranged on the buffer strip and the two handrails jointly, the buffer mechanism comprises a mounting cavity formed in the buffer strip, a fixed plate is fixedly connected to the inner wall of the mounting cavity, traction ropes are fixedly connected to the two side walls of the fixed plate, control cavities are formed in the two handrails, and rotating rods are rotatably connected to the bottoms in the two control cavities correspondingly, reels are fixedly connected to the side walls of the two rotating rods correspondingly, gears are fixedly connected to the side walls of the two rotating rods correspondingly, racks engaged with the two gears are arranged in the two control cavities correspondingly, and electric contacts are fixedly connected to the side walls of the two racks correspondingly. Under the condition that a vehicle does not rush out of the road, the vehicle speed of the vehicle is gradually reduced, thus guaranteeing that passengers in the vehicle cannot suffer large impact force to cause danger.

The invention discloses a hydrodynamic stereoscopic planting device. The hydrodynamic stereoscopic planting device comprises a support, a track assembly, culture dishes, a stopping mechanism and a reduction gear, all the culture dishes are hung on cross rods respectively, the cross rods and the culture dishes together constitute a balancing body, if water is injected into any water storage tank tochange the weight of the culture dishes, then balance can be broken, and thus other culture dishes are driven to move as a whole; the working principle is utilized that a water inlet pipe injects water into the water storage grooves to serve as a power source for the cross rods to circularly move and run along annular rails together with the culture dishes, and it can be effectively achieved thatcrops of all the culture dishes can receive sufficient illumination while the crops of the culture dishes are irrigated every day. The hydrodynamic stereoscopic planting device has the advantages ofsaving energy and being environmentally friendly, low in using cost, small in occupied space and high in practicability, meets the normal photosynthesis using function requirements of the crops of theculture dishes, and is suitable for being applied and popularized.

The invention discloses an automobile seat aluminum alloy electric sliding rail. The sliding rail comprises a motor and an outer rail rack; the motor is fixed on the outer side surface of an aluminumalloy inner rail, and the output end of the motor penetrates into the aluminum alloy inner rail and fixes an output gear; and a transmission gear is rotationally arranged inside the aluminum alloy inner rail, the transmission gear is meshed with the output gear, the outer rail rack is fixed at the inner bottom of the aluminum alloy outer rail, and the transmission gear and the outer rail rack aremeshed with each other. According to the automobile seat aluminum alloy electric sliding rail, the motor drives the transmission gear to roll on the outer rail rack, so that the driving mode of aluminum alloy inner rail sliding is achieved, the speed reduction effect can be achieved while the movement stability of the aluminum alloy inner rail is guaranteed, and additional speed reducer is not needed, so that the weight and cost are saved, the sliding of the aluminum alloy inner rail on the whole aluminum alloy outer rail stroke is facilitated, the space limitation during manual adjustment ofa seat is eliminated, and the distance is conveniently adjusted in place by once.