33results about How to "Achieve alternation" patented technology

The invention discloses an intelligent blackboard, belongs to the technical field of efficient utilization of mechanical blackboards, and aims at solving the problems that two blackboards cannot be alternately used and cannot be automatically erased. The intelligent blackboard comprises an erasing system and a switching system, wherein the switching system and the erasing system are fixed on the wall respectively; the erasing system comprises a moving unit and a centrifugal telescopic unit; the moving unit enables a long rod erasing head to move in the vertical and horizontal directions; the centrifugal telescopic unit enables the long rod erasing head to perform telescopic movement on the blackboard in the normal direction; the switching system enables the positions of a front-end blackboard and a rear-end blackboard to be switched; the long rod erasing head can be in contact with the front-end blackboard and the rear-end blackboard. The intelligent blackboard has the advantages that the two blackboards can be alternated, and the fixed area of the blackboard can be automatically erased by virtue of the cooperation of a singlechip microcomputer and peripheral equipment; the blackboard can be quickly, sanitarily, accurately and efficiently erased, and the maximum using efficiency is obtained.

The invention discloses a wardrobe structure. The wardrobe structure comprises a wardrobe body, wherein the wardrobe body is horizontally divided into a clothes recognition area and a clothes storagearea, and the clothes recognition area is provided with a wardrobe door; a rotating device is mounted in the clothes recognition area, a hanging device is mounted in the clothes storage area, the rotating device comprises a conveying rod, a hook body is arranged at one end of the conveying rod, the conveying rod rotates around one point of the conveying rod, the hanging device comprises an annularrail and multiple hook assemblies arranged on the annular rail and circularly moving along the annular rail, and the motion locus of the hook body is tangent to that of the hook assemblies. The motion locus of the hook body is tangent to that of the hook assemblies, so that the hook body on the rotating device and the hook assemblies on the hanging device can change clothes in the connected position, and automatic taking and placing functions of clothes in the wardrobe can be realized.

The invention discloses a dry and wet type cyclic magnetic separation method. A dry type magnetic separation method comprises the steps of a, grinding ores; b, performing pre-screening; c, performing reducing roasting; d, feeding materials; e, performing magnetic separation through an upper magnetic separation barrel; f, enabling the upper magnetic separation barrel to rotate to clean a storehouse; g, performing magnetic separation through a lower magnetic separation barrel; h, enabling the lower magnetic separation barrel to rotate to clean the storehouse; i, performing cyclic reciprocating magnetic separation; and j, rotating to discharge slag. A wet type magnetic separation method comprises the steps of a, cleaning impurities; b, performing filtering and pre-screening; c, feeding materials; d, performing magnetic separation through an upper magnetic separation barrel; e, enabling the upper magnetic separation barrel to rotate to clean a storehouse; f, performing magnetic separation through a lower magnetic separation barrel; g, enabling the lower magnetic separation barrel to rotate to clean the storehouse; h, performing cyclic reciprocating magnetic separation; and i, rotating to discharge slag. The device adopts a unique double-barrel circulating structure; when the circulating structure rotates to different positions under the driving of a driving device, river sand or metal mortar can be cyclically separated between the two hollow barrels. The whole process of the method is automatically controlled by a circuit, so that the waste of human resources is reduced, and the problems that a separation method is complicated, a separation process is long and the like are solved.

The invention discloses two-stage backflow simultaneous nitrogen and phosphorus removal device and technology for denitrification phosphorus removal, shortcut nitrification and anaerobic ammonia oxidation of municipal sewage, and belongs to the field of sewage treatment. Municipal sewage enters an anaerobic/anoxic reactor after passing through a regulating reservoir; phosphorus-accumulating bacteria finish storage and phosphorus release of polyhydroxybutyrate (PHB) by using inflow chemical oxygen demand (COD) under an anaerobic condition; phosphorus-rich supernatant enters inside a middle reservoir through a water decanter, and is injected into a moving bed membrane bioreactor by a lift pump after the water quantity is adjusted; autotrophic nitrogen removal of the shortcut nitrification and anaerobic ammonia oxidation is achieved by alternate operation of low-oxygen aeration and anoxic agitation; the processed effluent enters the anaerobic/anoxic reactor again under the action of a suction pump; denitrification phosphorus removal is achieved after phosphorus-accumulating sludge containing the PHB and autotrophic denitrification effluent containing nitrate nitrogen are mixed. Simultaneous nitrogen and phosphorus removal of low-carbon municipal sewage is achieved by using coupling of three functional microorganisms for denitrification phosphorus removal, shortcut nitrification and anaerobic ammonia oxidation, and the two-stage backflow simultaneous nitrogen and phosphorus removal device has the advantages of being high-efficiency and energy-efficient, stable to run, and low in sludge yield.

The invention discloses an automobile high beam light control equipment with the emergency braking function, which comprises an automobile body, an illumination alternating mechanism is arranged in the automobile body, and the illumination alternating mechanism comprises two low beam lights which are fixedly connected with the right end face of the automobile body in an up-down symmetrical mode; two high beam cavities with rightward openings are symmetrically formed in the right end face of the automobile body up and down, the high beam cavities are located on the two sides of the low beam, and high beams are arranged in the high beam cavities in a sliding mode, the high beam and the low beam can be used automatically and correctly, emergency braking of the automobile can be achieved, anda gear and a rack can control contraction of the high beams. the automatic switching of the high beam and the low beam is achieved, the cam can control the movement of the baffle and achieve the alternation of the high beam and the low beam, so that an opposite vehicle is prompted, and a fan canremind a driver in time when pedestrians appear in front of the vehicle according to the speed of the vehicle, and emergency braking is adopted to ensure the pedestrian safety when the driver cannot respond in time.

The invention relates to the field of shield tunneling machine construction, in particular to a programmable automatic control grouting pump for a shield tunneling machine. The programmable automatic control grouting pump comprises a support, discharge mechanisms, material suction mechanisms, delivery cylinder mechanisms, a water tank, pumping cylinder mechanisms and a hydraulic control valve set. The discharging mechanisms, the material suction mechanisms, the delivery cylinder mechanisms and the pumping cylinder mechanisms are of a symmetric double-set structure. The hydraulic control valve set controls the discharging mechanisms and the material suction mechanisms to motion. The hydraulic control valve set controls pumping cylinders to drive the delivery cylinder mechanisms to do reciprocating motion and realize suction and pumping of mortar. The programmable automatic control grouting pump for the shield tunneling machine can be controlled independently and controlled logically through programming, and is high in automation degree. The hydraulic control valve set is compact in structure and small in occupied space. The number of components is little, and cost is saved. The programmable automatic control grouting pump can be used for synchronous grouting, delivery of bentonite and other work during shield construction, can realize alternate and continuous working conditions of a dual-pumping system and is wide in application range.

An inner finned tube heat exchanger with a micro-wedge structure, comprising a heat exchange shell; a micro-wedge and an inner fin are arranged inside the heat exchange shell; the micro-wedge includes the lowest surface; The four sides extend outward and intersect with the highest surface; the four sides on the shortest surface, the upper side extends obliquely upward to form the first surface; the lower side extends along the inner wall of the heat exchange tube shell to form the second surface, the left The side extends to the lower right to form the third surface, and the right side extends to the upper left to form the fourth surface; the inner fin includes a first arc surface connected to the central axis; both ends of the first arc surface are inclined upward The direction extends to form an inclined surface; the inclined surface extends outward to form an arc ear; the end of the arc ear extends obliquely downward to form a second arc surface; the inner fin is connected with a central axis; the central axis and the heat exchange tube A heat exchange chamber is formed between the shell and the inner fins; fluid channels are formed between the micro-wedges; the alternation of cold and hot flows is accelerated, heat transfer is enhanced, and the heat exchange efficiency of the heat exchanger is improved.

The invention discloses an intelligent air purifier device for smart home, and belongs to the technical field of air purifiers. The intelligent air purifier device comprises an air filtering shell, an annular limiting groove is formed at the top of the air filtering shell, an air outlet cover assembly is inserted into the inner side of the annular limiting groove, and a net rack is mounted at the inner top of the air filtering shell; the top of the air filtering shell is provided with a through opening communicating with the interior of an air outlet cover, the middle of the top of the net rack is provided with an air guide plate assembly through a bearing, when formaldehyde passes through the air guide plate assembly, the air guide plate assembly and an air cover assembly are driven to rotate through the structure matched with the air guide plate assembly, and alternation of strong air and weak air is achieved; and the all-directional blowing function is achieved.

The invention relates to an ultrasonic cut-off machine for fancy zippers. The ultrasonic cut-off machine for the fancy zippers comprises a feeding assembly, a positioning assembly and an ultrasonic assembly. The positioning assembly is fixed on a base of the ultrasonic cut-off machine for the fancy zippers through a fixed cross plate supporting block. The positioning assembly comprises two cam bearing follower sets and idler wheel sets matched with the two cam bearing follower sets for use, wherein each cam bearing follower set comprises two cam bearing followers, and each idler wheel set comprises two idler wheels. The ultrasonic assembly is located at the rear end of the positioning assembly, wherein a fixed bottom plate is arranged at the bottom of the ultrasonic assembly, a supporting plate is fixedly connected with the fixed bottom plate, and the ultrasonic assembly is fixed on the base of the cut-off machine through the fixed bottom plate. According to the ultrasonic cut-off machine for the fancy zippers, the two idler wheel sets are used, alternation between all kinds of fancy zippers is realized so that pullers of the zippers can keep away from one another, as a result, production efficiency is improved, and the quality of the zippers is improved.

The invention provides a page turning driving anti-blockage drainage connector which comprises a cross-shaped central pipe, a drainage end connector, a negative pressure end connector and a page turning rotary knob. The drainage end connector and the negative pressure end connector are arranged at the two ends of a long arm of the cross-shaped central pipe respectively, and an inner cavity of thedrainage end connector and an inner cavity of the negative pressure end connector are communicated with the cross-shaped central pipe. The drainage end connector sleeves a drainage pipe on a drainageside and is of a design gradually increasing from the center to the outside, and a continuous step-shaped bayonet is formed on the inner wall of the drainage end connector. The negative pressure end connector is inserted in a drainage pipe on a negative pressure side, one end of the negative pressure end connector is integrally formed at the other end of the long arm of the cross-shaped central pipe, an annular step-shaped bayonet is arranged on the outer wall of the negative pressure end connector and obliquely extends, and the end face of the bayonet is an inclined face. The page turning rotary knob is inserted in an inner cavity of a short arm side of the cross-shaped central pipe, and comprises a flat page turning column arranged in a drainage cavity of the cross-shaped central pipe, two end cap columns and a flat rotary knob arranged on one end cap column and exposed out of the cross-shaped central pipe. The flat page turning column is in a flat shape, and is provided with a wideface and a narrow face, the narrow face is an arc face, and the width of the wide face is the same as the inner diameter of the drainage cavity.

The invention discloses a rotating mechanism of a vacuum chamber mounting assembly of a food packaging machine. The rotating mechanism is provided with a column; a shaft sleeve rotatably sheathed on the column; a cavity mounting plate fixed to the upper end of the shaft sleeve; a swing gear fixed to the periphery of the shaft sleeve and used for driving the periphery of the shaft sleeve to rotate; a connecting bracket fixedly arranged on the cavity mounting plate; and a circuit column arranged on the cavity mounting plate. An air pipe is not wound during vacuum pumping in the station rotation process.

The invention discloses a method for regulating and controlling the heat input of a variable-polarity CMT. The value of a parameter EP/EN Balance is changed, the influence of the EP/EN Balance on aluminum alloy heat input and joint forming under a unified condition is researched, and surfacing is carried on a flat aluminum alloy plate to obtain a surfacing joint with faultless surface and metallicluster.

The invention is applicable to the field of intelligent fully-mechanized coal mining, and provides intelligent mine fully-mechanized coal mining equipment convenient for realizing movable unloading. The intelligent mine fully-mechanized coal mining equipment comprises a one-way coal mining machine, a traction machine, a scraper conveyor and an automatic control system; the one-way coal mining machine is positioned at one end of the scraper conveyor; the automatic control system comprises a coal mining machine moving control unit which is used for moving the position of a coal mining machine; a double-roller adjusting unit which is convenient for the coal mining machine to realize alternation of upper and lower positions of double rollers in the coal mining process, so that the coal cutting efficiency of the coal mining machine is improved; a scraper conveyor control unit which is used for adjusting and controlling the positions of a bent section and a machine head of the scraper conveyor; and a coal falling and conveying control unit which is used for realizing the falling of the coal material by controlling the traction machine and controlling a material screening device at the same time, so that the effective screening of the material screening device on the coal material is ensured. Therefore, ore-soil separation can be effectively achieved, and the cleanliness of a coal mine is guaranteed.

The invention discloses a manipulator type planting machine, comprising a frame, wherein a seed storing device and a seed disc recovering device are arranged on the frame; a seed disc conveying device is arranged between the seed storing device and the seed disc recovering device; a seed inserting mechanism is arranged above the seed disc conveying device; the seed disc conveying device is provided with a lifting-up device; the bottom of the frame has a mobile device; and the base plate of the frame is provided with seed insertion holes allowing the seed inserting mechanism to pass through. According to the invention, seeds are artificially identified and then inserted into seed discs, so mechanical seeding is realized, and the problems of low artificial plantation efficiency and low quality.

The invention belongs to the technical field of chopsticks drying, and specifically relates to a household multifunctional chopsticks dryer, which includes a frame body and a water receiving tray arranged at the lower part of the frame body. The chopsticks basket is equipped with a blowing device and a vibration switch. The blowing device includes a housing with an air inlet and an air outlet. The housing is equipped with a motor, blades and heating wires. The motor is connected to the blades, and the blades The fan blade adopts an eccentric design, the heating wire is located near the air outlet of the housing, and the heating wire is electrically connected to the vibration switch; an insulating groove is provided on the water tray, and the insulating groove There are two metal sheets oppositely arranged in the groove, and the two metal sheets are connected in series on the motor circuit to form an open circuit; the household multifunctional chopsticks dryer adopting the technical solution of the present invention has low energy consumption and is suitable for family use, and It has fast drying speed and meets the needs of intelligent modern family life.