49results about How to "Effective inflow" patented technology

An experimental facility for collecting leachate during mining wasteland remediation relates to ecological remediation experiment facilities. A percolation device 1 adopts the structure that a percolation plate 2 on the upper surface of the percolation device 1 is connected with an impermeable plate 4 on the lower surface of the percolation device 1 through support pillars 3; a baffler 16 is connected to the front end of the percolation device 1; a leachate outlet 5 is formed in the baffler 16; percolation guiding holes 15 are uniformly distributed on the percolation plate 2; the leachate outlet 5 is connected with the end of a flow guide device 7, of which the caliber is thinner, through a hose 6; a porous filter screen 8 is arranged in the inner cavity at the end, with a thicker caliber, of the flow guide device 7; the end of the flow guide device 7, of which the caliber is thicker, is connected with one lateral port of a filtering device through a plastic hose; a top cap is mounted at the top of the filtering device; a detachable filter screen is placed at the lower part of the inner cavity of the filtering device; and a spherical valve is mounted at the lower end of the filtering device. Through the adoption of the experimental facility, leachate of natural rainfall or manually simulated rainfall can be collected in a controllable manner in an in-situ experiment of mining wasteland ecological remediation, so as to solve the problem that laboratory simulation study cannot reflect field environmental conditions completely.

An automatic basketball cleaning device for teaching and training is composed of a ball inlet box, a handle, a ball inlet cylinder, a put-in box, an inclined box, a cleaning box, a ball outlet cylinder, a ball outlet box, a storage box, a support plate, a support frame and wheels. In the ball inlet box, a ball inlet grooved wheel intermittent motion mechanism is mainly used for controlling basketball put-in; in the cleaning box, a washing incomplete gear intermittent motion mechanism, a disinfecting incomplete gear intermittent motion mechanism and a double-rack intermittent motion mechanism are mainly used for completing the work of washing and disinfecting basketballs; in the ball outlet box, a ball outlet grooved wheel intermittent motion mechanism is mainly used for controlling basketball drying. The automatic basketball cleaning device for teaching and training has the advantages that the grooved wheel intermittent motion mechanisms, the incomplete gear intermittent motion mechanism and the double-rack intermittent motion mechanism are effectively utilized in the whole device, the work of automatically washing, disinfecting and drying basketballs is completed, the working efficiency is greatly improved, the service life of basketballs is prolonged, and the hidden danger of germ infection on basketballs is reduced.

An exhaust manifold for vehicle is disclosed. First and fourth runners among a plurality of runners connected to cylinders of an engine are respectively connected to sides of a gas confluence part. Second and third runners disposed between the first and fourth runners are joined together integrally before being connected to the gas confluence part.

The invention provides a fan-out type wafer level encapsulation structure and a preparation method thereof. The encapsulation structure comprises at least a rewiring layer; at least one flip chip with a bump protection structure embedded in the upper surface of the rewiring layer and at least two first bumps formed on the upper surface of the rewiring layer; a plastic encapsulation layer of the flip chip formed on the upper surface of the rewiring layer and filled with the bump protection structure, a joint gap between the rewiring layers and the flip chip with the bump protection structure and part of the first bumps; and a second bump formed on the lower surface of the rewiring layer. The plastic encapsulation layer provides a seamless bonding and an excellent connection structure for the flip chips and the rewiring layers, the risk of boundary separations is avoided, and the reliability of the plastic encapsulation structure is increased; meanwhile the flip chips with the bump protection structures are adopted so that bumps are effectively protected and fixedly interconnected, and the interconnected bumps are prevented from losing efficacy.

The invention relates to an integrated machine for hulling and milling rice, comprising a frame, a central control host, an automatic feeding device electrically connected to the central control host, a hulling device, a rice milling device, an electronic weighing device, and a pressure regulating device , the discharge port of the automatic feeding device communicates with the feed port of the rice hulling device, the discharge port of the rice hulling device communicates with the feed port of the rice milling device, and the rice milling device The discharge port is arranged on the frame inclined downwards, the electronic weighing device is provided directly below the discharge port of the rice milling device, the pressure regulating device is provided on the rice milling device, and The discharge port of the rice milling device can be opened or closed, and the pressure regulating device is provided with a scale for displaying the output pressure value. The product of the present invention can realize automatic feeding into the rice huller, no residue in rice milling, adjustable rice port pressure, automatic hulling and rice milling, accurate measurement, and automatic weighing and self-service sales.

For forming a gas breaker which effectively realizes large electric current switching-off and medium/small electric current switching-off, a heat gas jetting chamber (21) and a mechanical gas jetting chamber (32) are equipped in series. In the heat gas jetting chamber (21), a spacing component (41) is equipped. The spacing component divides the inner part of the chamber along a radial direction for dividing to an inner periphery side space (61) and an outer periphery side space (62). A switching valve (42) which is used as a gas flow control mechanism is equipped between an arc space (31) and the heat gas jetting chamber (21). A movable valve (23) is equipped for opening and closing a communication part (18) of a spacing wall (17) between the heat gas jetting chamber (21) and the mechanical gas jetting chamber (32). When the large electric current is switched off, high-temperature and high-pressure de-arcing gas which comes from the arc space (31) is blown to the arc by means of the switching valve (42) from the outer periphery side space (62) of the spacing component (41) through the inner periphery side space (61). When the medium-small current is switched off, the de-arcing gas which comes from the mechanical gas jetting chamber (32) is only guided to the inner periphery side space (61) of the spacing component and is blown to the electric arc.

The invention discloses a water drain device for a top buffer layer of a karst tunnel. The drain water device comprises an upper water inlet, a right-angle rod, a lower water outlet, a main water drain pipe and a lengthening water drain pipe. The upper water inlet and the lower water inlet are provided with an upper water inlet filter screen and a lower water inlet filter screen respectively to realize water filtration, the lower water inlet, a communication device and an 'S'-shaped connector are designed integrally, and activated carbon is put in the communication device to prevent fine sand of the buffer layer from flowing away. The water drain device for the top buffer layer of the karst tunnel has the advantage that adverse effects of water accumulated in the buffer layer on a tunnel body can be effectively prevented.

The invention discloses a blackboard cleaning system, and belongs to the technical field of teaching tools. The blackboard cleaning system comprises a blackboard, a containing tank, a wall, a power source and a transmission belt. The blackboard is arranged on the wall, and the power source is connected with a single-chip microcomputer. A spraying head is arranged at the top of the blackboard, andthe rear portion of the spraying head communicates with a solenoid valve through a water pipe. The solenoid valve communicates with a water supply tank, and a water pump I is arranged between the water supply tank and the solenoid valve. The water pump I and the solenoid valve are both electrically connected with the single-chip microcomputer. A drainage channel is arranged at the bottom corner ofthe blackboard, and communicates with a waste water pool. A wiping body is arranged on the front side of the blackboard, a transmission rod is arranged on the transmission belt, and the transmissionrod is connected with a sliding sleeve. A transmission wheel is arranged on the inner side of the transmission belt, and the single-chip microcomputer is electrically connected with two rotary motors.The output ends of the rotary motors are connected with the input end of a reducer, and the output end of the reducer is connected with a transmission wheel. The blackboard cleaning system is easy and convenient to operate, the blackboard can be automatically wiped and cleaned, the wiping process is free of dust, the health of teachers and students cannot be influenced, the labor intensity is low, and the work efficiency is greatly improved.

The invention discloses an external circulation cooling system of a machining center. The external circulation cooling system of the machining center comprises a vacuum chuck, a filtering water tank,a water outlet pipe, a water tank, a cooling water inlet pipe, a high-pressure water pump, a machining center operating table and a cooling water outlet pipe, wherein water tank bodies are arranged onthe periphery of the vacuum chuck. The circulation system can solve the problem that an existing cooling circulation system of a machining center cannot realize circulating cooling of a methyl-polystyrene-type scintillator cooling liquid in a pure water environment.

The invention relates to a drought-resistant micro-rainwater-collecting mulching film mulching device, and a film mulching and rainwater-collecting method thereof, and belongs to the technical field of ground planting. The device is characterized in that: a fixing platform is installed at the tail of an agricultural tractor; side plates are installed on the two sides of the fixing platform respectively, wherein the tops of the side plates are connected and fixed through an arc-shaped connecting plate, rotating shaft mounting plates are horizontally installed on the side plates, and a driving assembly is mounted between the rotating shaft mounting plates; two lifting rods are further mounted on the fixing platform, wherein an upper control plate is mounted at the tops of the two lifting rods, a lower limiting plate is mounted at the lower parts of the two lifting rods, a reset spring is mounted between the upper control plate and the fixing platform, and a rainwater collecting groove forming head is detachably mounted at the bottom of each lifting rod; a mulching film fixing frame is further installed on rear portion of the fixing platform and is provided with a mulching film reel. The embodiment of the invention is simple in structure, reasonable in design, and capable of automatically digging grooves and covering films, seeds can be planted on wet soil in extremely dry years to guarantee seed germination and seedling emergence, and rainwater can be conveniently and efficiently collected for crop growth.

The present invention relates to a vacuum cleaner. The vacuum cleaner, according to one aspect, comprises: a cleaner main body which has a suction motor for generating suction force; and a suction hose which communicates with the cleaner main body and sucks in air and dust. The cleaner main body comprises: a main body part; a dust container which is provided to the main body part and has a suctionport through which dust sucked in through the suction hose is introduced, and a storage space in which the dust is collected; and a cover member which is provided with a connector having one side thereof connected with the suction hose, and which selectively shields at least one portion of the dust container, wherein, when the cover member shields one side of the dust container, the connector aligns in parallel with the direction in which air is introduced at the suction port.

The invention belongs to the technical field of indoor refrigeration, and particularly discloses an indoor building cold water replacement ventilation system and a control method. Airflow channels which communicate with one another are preset in an indoor building along the periphery of an indoor wall, airflow outlets are formed below the airflow channels, and movable baffles are arranged at the airflow outlets. The system comprises a ventilation assembly and a water chilling unit used for preparing chilled water, wherein the ventilation assembly comprises a cold water coil pipe spirally installed at the tops of the airflow channels, a temperature sensor, a speed sensor and a controller; the temperature sensor, the speed sensor and the controller are arranged indoors, and the speed sensoris arranged at the airflow outlets; one end of the cold water coil pipe is connected with a water outlet of the water chilling unit through a chilled water valve, and the other end of the cold water coil pipe is connected with a water inlet of the water chilling unit; and the temperature sensor, the speed sensor, the chilled water valve and the movable baffles are all connected with the controller, and the controller is used for controlling the opening size of the chilled water valve and the movable baffles. The upper space of a room is saved, and the ventilation efficiency and the thermal comfort of the human body can be effectively guaranteed.

The flying paint attachment preventing system comprises a paint spraying equipment body and an adjusting mechanism, the adjusting mechanism comprises a bottom pipe, a connecting part and a positioning part, the outer surface of the paint spraying equipment body is slidably sleeved with the bottom pipe, the connecting part comprises a connecting pipe, and the outer surface of the bottom pipe is slidably sleeved with the connecting pipe; the outer surface of the connecting pipe is slidably sleeved with a connecting ring, and one end of the connecting ring is in threaded connection with an adjusting ring. According to the paint spraying device, when the paint spraying device is used, the outer surface of the paint spraying device body is effectively sleeved with the bottom pipe, then the positioning ring can effectively move and extrude the pressing block by rotating the positioning ring, then the pressing block can effectively press the linkage rod downwards, and then the linkage rod can effectively press the positioning block downwards; under the limitation of the positioning position, the equipment can be stably arranged on the outer surface of the paint spraying equipment body in a sleeving mode, then the adjusting ring is rotated according to the actual spraying requirement, and then the adjusting ring can push the connecting ring.