82results about How to "Achieve the purpose of slowing down" patented technology

The invention discloses a hydraulic resistance type tall building escape device, comprising a revolving axle, a damping rotor sheathed on the revolving axle and a winding reel sheathed on the damping rotor; wherein the two ends of the damping rotor and the two ends of the winding reel are all fixedly connected with a cover plate by virtue of bolts, the winding reel is wound with a steel wire rope used for escaping, the two ends of the winding reel and corresponding position on the cover plate are provided with a winding hole used for tying the steel wire rope, the cover plate is sheathed on the revolving axle by virtue of an axle sleeve and a rolling bearing contained in the axle sleeve, the cover plate is fixedly connected with an end cover by virtue of bolts, the revolving axle is provided with a seal ring used for sealing the revolving axle, the axle sleeve and the damping rotor, the two ends of the revolving axle are fixedly connected with a hook, and a hermitical space formed by the revolving axle, the damping rotor, the winding reel and the seal ring is injected with viscous liquid. The invention has compact structure, novel and reasonable design, operation convenience, high stability, durability and reliability, good cyclic utilization performance, low cost and strong practicability and is beneficial to popularization and application.

The invention discloses an agricultural unmanned helicopter. The agricultural unmanned helicopter comprises a helicopter body comprising a frame; a rotor head for fixing a main rotor is arranged on the frame; the main rotor is mounted on a rotor head main rotor holder, and is driven through a motor in the helicopter body; spray rods are additionally arranged at the lower rear position of the frame; the frame backwards extends to form a tail pipe; a four-blade tail gear box is arranged at the tail end of the tail pipe; pesticide chests are arranged at the left and right sides of the lower part of the frame; a foot stand is additionally fixed at the lower part of the frame; the frame comprises a helicopter body first-layer plate, a helicopter body second-layer plate and a helicopter body third-layer plate fixedly connected in sequence from top to bottom; the helicopter body first-layer plate and the helicopter body second-layer plate are put around upper and lower positions of a main shaft and thus are fixedly connected; the helicopter body second-layer plate and the helicopter body third-layer plate are fixedly connected through second-layer plate and third-layer plate connecting aluminum pipes; and helicopter body side plates at the left and right sides are mounted at the front end of the space between the helicopter body second-layer plate and the helicopter body third-layer plate. Because of the three-layer integrated frame, the weight is light, the strength is high, the structure is simple, and the helicopter body gravity center can be quickly adjusted.

The invention relates to a method and a device for limiting the speed of a car. The method comprises the following steps: acquiring the real-time running speed; judging whether the real-time running speed is higher than the preset maximum running speed of the car or not; when the real-time running speed is higher than the preset maximum running speed of the car, sending a speed limiting signal to a restrictor to instruct the restrictor to reduce the air inflow of an engine cylinder of the car. When the running speed of the car exceeds the preset maximum running speed, the speed of the car can be slowed down to the preset speed automatically, so that the car running safety is ensured, and the problem of overspeed running of the car is solved.

The invention discloses an automatic escaping and help seeking system of a bus. The system comprises a spraying device, a glass lifting mechanism, a control circuit, a GPS (Global Positioning System) module, a power supply module, a temperature sensor, a smog sensor, a flame sensor and a wading module, wherein the spraying device is arranged at the top of a vehicle; the glass lifting mechanism is arranged on a window of the vehicle; the control circuit, the GPS module, the power supply module are arranged in a vehicle body; the temperature sensor, the smog sensor, the flame sensor and the wading module are arranged in the vehicle in a dispersing way; the power end of the power supply module is connected with the power end of the control circuit and is used for directly or indirectly providing a working power supply to other mechanisms; the input end of the control circuit is respectively connected with the output ends of the temperature sensor, the smog sensor, the flame sensor, the wading module and the GPS module; and the output end of the control circuit is respectively connected with the controlled ends of the spraying device and the glass lifting mechanism. When a fire disaster occurs in the vehicle, even under the condition that the vehicle turns on one side or turns over, the system can be used for timely extinguishing fire, opening window glass and sending a signal for help, a reliable safeguard for safe bus taking is provided for passengers.

The invention discloses a control device capable of preventing elevator deceleration. The control device comprises an elevator shaft; a car is movably connected to the surface of the inner wall of theelevator shaft; a steel strand is fixedly connected to the top of the car; a top plate is fixedly connected to the surface of the inner wall of the elevator shaft and positioned at the top of the car; the left side of the top of the top plate is connected with a control box through a bolt; the top of the top plate is rotationally connected with a first transmission wheel; a motor is fixedly mounted on the back surface of the first transmission wheel; a second transmission wheel is rotationally connected to the top of the top plate and positioned on the right side of the first transmission wheel; and the steel strand is movably connected to the surfaces of the first transmission wheel and the second transmission wheel. Through cooperation of an electric extension rod, a limiting block, a photoelectric speed sensor, a chute, a spring, a linear speed sensor, a damping plate and a damping spring, the problem of incapability of guaranteeing the life safety of users under emergencies due toa certain potential safety hazards in a traditional elevator is solved.

The invention discloses a protecting device for a debris flow frequently-occurring slope, and relates to the technical field of geological natural disaster equipment. The protecting device comprises abuffering slide rail; the bottom of the buffering slide rail is fixedly connected with fixed piers, and the bottom end of the buffering slide rail penetrates through the fixed piers, extends to the interiors of the fixed piers, and is connected with the ground through fixing piles; roads are arranged on the bottoms, away from one side of the buffering slide rail, of the outer surfaces of the fixed piers; the slope is connected to the surface, away from one sides of the roads, of the buffering slide rail; a fixing limiting block is arranged on the position, connected with the fixed piers, of the surface of the buffering slide rail, and decelerating sliding blocks are evenly arranged on the positions, above the fixing limiting block, of the surface of the buffering slide rail; and the surfaces of the decelerating sliding blocks are fixedly connected with buffering springs, and the decelerating sliding blocks are connected together in pairs through the buffering springs. According to theprotecting device for the debris flow frequently-occurring slope, the problems that existing debris flow prevention and control equipment has great difficulty in accurately predicting a disaster andtaking prevention and control measures in time in the face of the disaster, disaster prevention and control effects are poor, destructive power of a debris flow cannot be effectively reduced, and thelarge economic loss is caused are solved.

The invention discloses a double-speed cleaning tool. The double-speed cleaning tool comprises a mop and a mop bucket, wherein the mop bucket is provided with a cleaning station and a dewatering station; the mop comprises an inner rod, an outer rod and a rotatable mop disc which are connected with one another in a sleeving manner; a driving mechanism for converting downward motion of the outer rod into rotary motion of the inner rod is arranged between the inner rod and the outer rod; the lower end of the inner rod is connected with a speed reducing mechanism; the inner rod is connected with the mop disc through the speed reducing mechanism; during dewatering, the mop disc is placed at the dewatering station, the outer rod is pressed down, and the mop disc is driven by the driving mechanism to rotate at a first rotation speed; during cleaning, the mop disc is placed at the cleaning station, the outer rod is pressed down, the speed reducing mechanism is driven by the driving mechanism, and then the mop disc is driven by the speed reducing mechanism to rotate at a second rotation speed; the first rotation speed is greater than the second rotation speed. According to the double-speed cleaning tool, the purpose of realizing high-speed rotation of the mop disc during dewatering and low-speed rotation of the mop disc during cleaning is achieved; the double-speed cleaning tool has a simple structure and is more convenient to mount; meanwhile the mop rod provided with the speed reducing mechanism simultaneously adapts to a single-bucket cleaning tool and a double-bucket cleaning tool.

The invention discloses a corrosion inhibitor coating device with controllable speed of a gathering and transportation pipeline. The corrosion inhibitor coating device comprises a controllable speed part and a film coating device; the inner part of the controllable speed part is a high-pressure air storage cylinder, and the outer periphery of the controllable speed part is sleeved with at least one sealing rubber cup; the front end of the high-pressure air storage cylinder is provided with a speed control valve and a first group of rotating mechanisms, the rear end of the high-pressure air storage cylinder is provided with a second group of rotating mechanisms and a first connecting ring, a plurality of circumferential rotating bearings and two groups of axial rotating bearings are uniformly mounted on the outer wall of the high-pressure air storage cylinder in the circumferential direction; the inside of a cylinder body of the film coating device is hollow and is used for storing a corrosion inhibitor, a liquid outlet groove and a film coating brush are arranged on the periphery of the cylinder body, a second connecting ring is arranged at the front end of the cylinder body, the first connecting ring is connected with the second connecting ring, and when the film coating device exceeds a preset speed, the speed control valve is opened. According to the corrosion inhibitor coating device, gas emitted by the high-pressure air storage cylinder of the controllable speed part can slow down the device, the running speed is controlled to be lower than a specific value, and the film coating device is uniformly coated on the inner wall of the pipeline by the film coating brush carrying the corrosion inhibitor, and therefore, the situation that the speed is controllable, the coating film is automatic and the coating film are uniform can be achieved.

The invention relates to equipment for cutting chestnuts, in particular to food production equipment for automatically cutting chestnuts. The purpose is to provide the food production equipment, whichis efficient, and is capable of guaranteeing the safety of workers to a certain degree, reducing the time cost, reducing fatigue of the workers and guaranteeing the neatness of cuts, for automatically cutting the chestnuts. The food production equipment for automatically cutting the chestnuts comprises a second support, a cushion block and a servo motor, wherein the second support is connected with one side of the top side of a first support; the cushion block is connected with the side, close to the second support, of the top side of the first support; and the servo motor is connected with the side, close to the second support, of the bottom side of the first support. According to the food production equipment for automatically cutting the chestnuts, through cooperation of a boss, a sliding block, an electric saw and a follower, the purpose of cutting the chestnuts is achieved, the neatness and the aesthetics of cuts of the chestnuts are guaranteed, the efficiency is improved, and anautomatic operation process is conducted.

The present invention discloses an underground crop digging robot and a control method thereof. The robot comprises a travelling mechanism, a soil loosening mechanism, a transmission mechanism, a bagging mechanism and a control system. The travelling mechanism comprises driving wheels and a driven wheel which are arranged at the two ends of a rack respectively, the driving wheels comprise a right driving wheel driven by a first motor and a left driving wheel driven by a second motor, and one ends of the driving wheels are a machine head. The soil loosening mechanism is arranged at the bottom of the rack and comprises a soil digging shovel and a soil loosening shovel, the tail parts of the soil digging shovel and the soil loosening shovel are both connected with the rack, and the transmission mechanism is arranged on the rack. The head of a horizontal conveyor belt is contacted with the tail part of the soil digging shovel, and the tail part is contacted with the bottom of a vertical conveyor belt. The bagging mechanism is arranged at the tail part of the rack and comprises a bag for holding the underground crops. The underground crop digging robot and the control method thereof solve the structural insufficiency of a conventional potato digging machine, highlight the characteristics of the potato digging machine, such as light volume, automatic driving, automatic potato bagging, etc., in the mechanism design, realize the man-machine separation, and avoid the electric shock potential safety hazards of people.

The invention discloses an electric traction device used for electric power construction. The structure comprises a speed limiting device, a control panel, a traction device base, a main traction shaft, a motor box, a work monitoring window, a rear support frame, a traction positioning bracket and a bracket movable sliding rail. The speed limiting device is arranged at the left part of the traction device base. The speed limiting device is fixedly connected with the traction device base through welding. The speed limiting device is movably connected with the main traction shaft through a bearing. The control panel is arranged at the upper part of the speed limiting device. The right part of the main traction shaft is connected with the motor box. A work monitoring window is arranged at theupper part of the motor box. The safety and reliability of the work of equipment are effectively improved. Cable damage caused during the working process can be effectively avoided. The work safety is improved.

The invention discloses a rollover-preventing courier car, which comprises a courier car body, an intelligent central control, a gyroscope and a buzzer. , the end of the carriage chassis is equipped with a gyroscope, the gyroscope is electrically connected to the intelligent central control, the intelligent central control is equipped with a signal processing module, the intelligent central control is connected to a buzzer, the intelligent central control is connected to the engine, and the engine is connected to the transmission system , the drive train is connected to the drive wheels. The invention has the advantages of preventing the overturning of express vehicles during transportation, increasing transportation safety and efficiency, and solving the safety hazards and economic losses caused by the overturning of traditional express vehicles during transportation, as well as the problems affecting customer satisfaction.

The invention discloses a burner cap, a combustor and a gas stove. The burner cap comprises a burner cap body, the burner cap body is provided with a gas cavity, and the side wall of the burner cap body is provided with fire holes and flame stabilizing holes, wherein the fire holes and the flame stabilizing holes communicate with the gas cavity and are distributed in the circumferential direction. The flame stabilizing holes comprise the first flame stabilizing holes and the second flame stabilizing holes, the first flame stabilizing holes and the second flame stabilizing holes are arranged in the height direction of the burner cap body, so that the first flame stabilizing holes and the second flame stabilizing holes are arranged in at least one row, the outlet direction of the at least one row of first flame stabilizing holes and the outlet direction of the at least one row of second flame stabilizing holes are arranged in a crossed manner so that impulsion can be formed after gas flows out along the first flame stabilizing holes and the second flame stabilizing holes, the aim of speed reduction is achieved by utilizing impulsion of the gas, the gas can be stably combusted at the positions of the fire holes, and a flame stabilizing effect is achieved. The first flame stabilizing holes and the second flame stabilizing holes have certain inclination angles, so that the situation that oil stains are accumulated in the flame stabilizing holes to cause blockage is not prone to being caused, and the use effect is better.

The invention discloses a current slowing brake device. The brake device comprises a first seal work cavity arranged on the radial outer side of an output shaft, an inner friction plate and an outer friction plate are arranged in the first work cavity, the outer wall of the output shaft is sleeved with the inner friction plate, the inner friction plate and the output shaft are fixed, the outer wall of the output shaft is sleeved with the outer friction plate, and the outer friction plate and the side wall of the first work cavity are fixed, the inner friction plate and the outer friction plate are sequentially and alternatively arranged in the axial direction of the output shaft, a gap is reserved between the inner friction plate and the outer friction plate adjacent to the inner friction plate, the inner friction plate and the outer friction plate are insulated, and the first work cavity is filled with electrorheological fluid. The output shaft, the side wall of the first work cavity, the surface of the inner friction plate and the surface of the outer friction plate are all good conductors. According to the current slowing brake device, through continuous control over the additional electric field, continuous control and adjustment of brake force can be achieved, the structure is simple, the weight is small, and the reaction speed is high.

The invention discloses an indirect speed reducing device of a transmission system of an electric automobile, comprising a motor, a motor output shaft, a speed reducer, a speed reducer input shaft, a speed reducer output shaft and a drive axle. The indirect speed reducing device is characterized in that a first universal joint is connected between the motor and the speed reducer, and the other end of the speed reducer is connected with the drive axle through a second universal joint. The invention has the characteristic that since the universal joint is arranged between the motor and the speed reducer, the direct connection (hard connection) between the motor and the speed reducer is changed into indirect connection (soft connection), and the purpose of speed reduction is achieved.

The invention relates to the technical field of bearing blocks, in particular to a bearing block for a speed reducer. The bearing block comprises a base, an extending part is fixedly installed on the base, the base and the extending part are provided with bearing holes, and the upper end face and the side face of the base are provided with threaded holes which are provided with fasteners matched with the threaded holes. According to the bearing block for the speed reducer, the installation position of a shaft can be adjusted by adjusting the lengths of the parts, extending into the threaded holes, of the fasteners, and the operation stability of the shaft is guaranteed.

The invention discloses a snub self-protection type small wind driven generator, and belongs to the field of wind driven generators, the snub self-protection type small wind driven generator comprises a generator body, the generator body comprises a machine shell and a rotating shaft connected with fan blades, a speed limiting ring is fixedly embedded in the side wall of the machine shell, and the rotating shaft penetrates through the speed limiting ring; by improving an existing wind driven generator, the wind driven generator has the functions of automatically and manually starting and stopping a safety device, a magnetic block repels a second friction plate outwards by pulling a starting rope, the second friction plate and a first friction plate rub each other, and therefore the speed of a rotating shaft is reduced, and safe operation of the generator in strong wind weather is guaranteed; and the friction sleeve is additionally arranged on the side wall of the rotating shaft, and the friction plate I and the friction plate II are in intermittent contact by utilizing the principle that the centrifugal force is increased at a high rotating speed, so that the purpose of speed reduction is achieved, the generator realizes self-protection under the condition that people forget to start the starting rope, and the service life and the operation stability of the generator are effectively improved.

The invention discloses a rotatable large-sized air suction and dust removing device and relates to the dust removing field of casting equipment. The dust removing device comprises a driving system and an air suction vertical column; a rotary sleeve is arranged on the periphery of the air suction vertical column and certain gaps are reserved between the periphery of the air suction vertical column and the rotary sleeve; a rotary sleeve supporting shaft is arranged inside the air suction vertical column; the rotary sleeve is supported by the rotary sleeve supporting shaft; a first chain wheel is arranged on the outer surface of the rotary sleeve; the first chain wheel is driven by the driving system; a dust suction cover is arranged on one side of the rotary sleeve. The rotatable large-sized air suction and dust removing device has the advantages of enabling the rotary sleeve to rotate, enabling adjustment of positions of air suction and dust removing to be easy, fully achieving the speed reducing purpose due to speed reduction of the two-level chain wheel and enabling rotation to be achieved due to driven of a small power motor due to the fact that certain gaps are reserved between the rotary sleeve and the air suction vertical column.

The invention discloses a damping reduction system suitable for transportation of rolled steel goods. The damping reduction system comprises a damping device. The damping device comprises a pluralityof damping modules arranged along a motion path of a to-be-transported part. A damping module is arranged in a damping speed adjusting area. The damping speed regulation area is arranged in front of an unloading area. After the to-be-transported part enters the damping speed regulation area, the damping device is started, so that the damping modules generate corresponding resistance, and after thespeed of the to-be-transported part is effectively lowered, the goods are unloaded at an unloading area. Meanwhile, the front of the damping speed adjusting area is further provided with a speed measuring area mounted in an information collector. After the to-be-transported part enters a speed testing area, information such as speed is collected by the information collector and is then fed back to a control unit, the control unit then controls the damping device to enable a certain number of damping modules to work so as to generate matched damping, to-be-transported parts with different weights ,specifications and speed can be controlled to enter the unloading area at specific speeds, and the purposes of reducing the speed and unloading the goods safely are effectively realized.

The invention discloses a speed limiting wheel. The speed limiting wheel comprises a walking wheel, wherein a bearing is arranged at the center position of the walking wheel, a shaft penetrates through the bearing, a speed limiting assembly is installed at one end of the shaft, the speed limiting assembly comprises a brake disc, a brake disc bearing matched with the shaft is arranged at the center position of the brake disc, and a driven gear is arranged at the center position of the front face of the brake disc. In the rapid rotating process of the walking wheel, a brake block can generate centrifugal motion, the elastic potential energy of a speed limiting adjusting spring is overcome, and therefore a brake pad on the brake block and the inner wall of a speed limiting disc generate friction, the brake disc is forced to slow down, three planetary gears meshed with the driven gear are slowed down, and the purpose of speed reduction of the walking wheel is achieved after the planetary gears are slowed down.

The invention relates to an automatic popping device for an aerospace fall-back object beacon machine, which comprises a high pressure air tank, a wireless beacon machine, an automatic control unit, a stepping motor and a speed reducing ribbon and is characterized in that the ribbon is wound on the outer surface of the beacon machine; the beacon machine is arranged in a rotary popping chamber; the rotary popping chamber is arranged in a gun barrel connected with an air outlet of the high pressure air tank; after rotating, the rotary popping chamber seals up the gun barrel to prevent airflow from leaking out; the automatic control unit is connected with the stepping motor and is used for controlling the stepping motor; and a rotating shaft of the stepping motor is connected with the rotarypopping chamber. In the invention, searchers accurately recycle objects falling back from the sky according to a signal sent by the beacon machine. The automatic popping device has simple structure and is convenient to manufacture.

The invention discloses a brake mechanism of an escape backpack slow descending device. The brake mechanism comprises a brake cover plate and a brake shell with a containing groove, and further comprises a rotating block located in the containing groove and connected with a brake shaft, and at least three brake blocks. At least three strip-shaped eccentric grooves are formed in the rotating blockand evenly distributed circumferentially. The eccentric grooves extend inwards from the outer circumference of the rotating block. The extension cords of the eccentric grooves do not penetrate throughthe center of the rotating block. The brake blocks are evenly distributed circumferentially. Each brake block comprises a brake pad and an eccentric block, wherein the brake pad is in an arc shape, the shape of the eccentric block is the same as that of the corresponding eccentric groove, and the eccentric block extends into the corresponding eccentric groove and is slidingly connected with the eccentric groove. A reset piece for making the brake blocks to reset is omitted, meanwhile the aim of speed reduction through eccentric friction brake shells of the brake pads in use can be ensured, the installing efficiency is improved, and the brake blocks can be conveniently detached during maintaining.

In order to solve the car collapsing accident caused by sliding out-of-control of an elevator, the invention discloses a blocking buffering device for preventing the elevator car from collapsing. Theblocking buffering device comprises a blocking cable, diversion sheaves, blocking counterweights and car blocking hooks, wherein the car blocking hooks hook the blocking cable for dragging and blocking to achieve the car deceleration. The specific embodiment mode comprises the steps that firstly, a blocking buffering device for preventing the elevator car from collapsing is mounted on each shaft wall of the two sides of the car or each guide rail of the car from a first layer to a second layer in an elevator shaft, the two diversion sheaves are mounted in the horizontal direction of each device, the blocking cable is horizontally placed on the diversion sheaves, the two ends of the blocking cable are connected with the blocking counterweights below, the blocking counterweights are mountedin the cylindrical guide rails, and the car blocking hooks are mounted on the two side surfaces of the car; and the total weight of all the blocking counterweights cannot exceed two third of the car weight, the principle of the blocking buffering device for preventing the elevator car from collapsing is that when the car falls at a high speed, the car blocking hooks hook the blocking cable to continue to operate downwards, and counterforce generated through the mode the blocking cable drag the blocking counterweights upwards through the diversion sheaves counteract a part of impact force of falling of the car, so that the deceleration effect is achieved.

The invention discloses a planet speed reduction motor with a shock absorbing function and a compact structure. According to the planet speed reduction motor with the shock absorbing function and the compact structure, a reducer shell is arranged in a motor shell in a sleeving manner, and a honeycomb rubber gasket is arranged between the two shells, so that the connection performance between the motor and the reducer in the planet speed reduction motor can be improved while impact force to the reducer by the motor also can be lowered, and a shock absorbing effect can be achieved; meanwhile, a main solar wheel in the reducer drives a thin-wall elastic inner gear to rotate to enable the thin-wall elastic inner gear to drive a concave inner gear on a secondary solar wheel to rotate, and then to enable the concave inner gear to drive an output solar wheel to rotate, so that the rotating speed of the output shaft on the output solar wheel can be lower than that of the motor output shaft, and a purpose of speed reduction can be achieved; and in addition, the gear structure in the reducer is compact, so that a good speed reduction effect is achieved, the use efficiency of the planet speed reduction motor can be improved, and popularization and use can be promoted.

The invention discloses an electric vehicle downhill safety brake circuit system, which solves the problem of downhill safety brake. The invention comprises a power supply VCC, a motor M, a downhill safety brake circuit and a speed regulating handle. The power supply VCC is connected with the downhill safety brake circuit, the speed regulating handle is connected with the downhill safety brake circuit, the brake switch is connected with the downhill safety brake circuit, and the downhill safety brake circuit is connected with the motor. The downhill safety brake circuit comprises a start switch SB1, a start switch SB2, an AC contactor KM1, an AC contactor KM2, a brake switch, a downhill auxiliary switch and an electronic timer. The invention has the advantages of high downhill braking safety.

The invention discloses a high-altitude rescue device and a using method thereof. The high-altitude rescue device comprises a sealing housing and damping liquid as well as a damping rotating assembly arranged in the sealing housing, wherein the damping rotating assembly comprises a first end plate, a second end plate and a rotating shaft; a plurality of blades are arranged on the rotating shaft; a plurality of damping holes are formed in the blades; one end of the rotating shaft extends out of the first end plate; a first gear is mounted on one section, extending out of the first end plate, of the rotating shaft; a wire winding barrel is mounted on the first gear; a steel wire rope for high-altitude escape is wound on the wire winding barrel; the other end of the rotating shaft extends out of the second end plate; a second gear is mounted on one section, extending out of the second end plate, of the rotating shaft; a gear ring which corresponds to the second gear in structure is arranged on the second gear; and a hanger is arranged on the sealing housing. The device is simple in structure, reasonable in design, convenient to realize, can be effectively applied to high-rise building rescue, is simple to operate, is convenient to cascade, is good in using effect, and is convenient to popularize and use.