238results about How to "Novel design concept" patented technology

The invention relates to an alternating current (AC) converter for converting high voltage to low voltage in the field of power electronics. The converter comprises an AC chopper circuit, a high-frequency transformer circuit, a rectifier and filter circuit, a waveform conversion circuit and a working frequency inversion circuit which are sequentially connected in series, wherein the AC chopper circuit is used for converting input high-voltage working frequency AC voltage into high-frequency impulse high-voltage AC voltage and outputting the converted voltage to the high-frequency transformer circuit; the high-frequency transformer circuit is used for converting high-frequency impulse high-voltage AC voltage into full wave direct current (DC) voltage and outputting the full wave DC voltageto the rectifier and filter circuit; the rectifier and filter circuit is used for converting the high-frequency impulse low-voltage AC voltage into full wave DC voltage and outputting the full wave DC voltage to the waveform conversion circuit; the waveform conversion circuit is used for boosting the full wave DC voltage, adding input current to the full wave DC voltage and then outputting the combined voltage and current to the working frequency inversion circuit; and the working frequency inversion circuit is used for inverting the DC voltage into working frequency AC sine wave voltage or AC square wave voltage and outputting the inverted voltage. The converter is an AC-AC conversion circuit which has the advantages of small volume, light weight, high efficiency, low cost, simple designand high reliability and can run with a unit power factor.

The invention discloses an underground total darkness environment high definition video collecting and processing system as well as a collecting and processing method. The system comprises a power supply unit, a microprocessor, a video collecting and processing unit, a voice processing unit, a displaying unit, a storing unit, a wireless transceiving unit and an USB interface; the above units are connected to compose a mobile terminal equipment for collecting audio and video signals, and performing wireless transceiving, playback and wired output to the collected signals; the video collecting and processing unit comprises an optical lens, a micro image intensifier, a CMOS image sensor and a white light secondary light source. The method comprises: 1. collecting voice and video signals; and 2. performing wireless transceiving, playback and wired output to the collected signals by the microprocessor. The used equipments in the invention are simple in structure, small in volume, flexible in networking, light and convenient in mobilizing, low in cost and low in power consumption, can realize underground total darkness environment high definition video collecting and processing and real-time low power consumption mobile voice communication.

A method for keeping center of a vibration table for low air-pressure and vibration combined test and a device thereof relate to the field of mechanics environment test equipment. In the device, the inner space of an electric vibration table is designed to a sealed rigid air chamber, and the table is positioned at a vibration center of a vertical vibration test or horizontal vibration test and is supported by floating balance between the air pressure of a low air-pressure test box arranged on one end of the table and the air pressure of a rigid air chamber arranged on the other end of the table. A measuring device is used for detecting the distance and direction of the table static and dynamic deflection from the theoretical vibration center position, and an aeration passage and two exhausting passages aerate and exhaust the rigid air chamber to keep the table at the vibration center position during the test. The method and the device are applicable to the vertical vibration combined test and the horizontal vibration combined test, the vibration table can be automatically always kept at the vibration center position during the combined test, in particular when the test low air pressure is in aeration state, the vibration table can also be always kept at the vibration center position.

The invention relates to the technical field of printer cleaning, in particular to a cleaning device of a spray head for a 3D printer. The cleaning device comprises a box body. A through hole is formed in the top end face of the box body. The inner side wall of the through hole is in sliding connection with a sliding block. A first spring is arranged on the inner side of the sliding block. A steelneedle is arranged on the inner side of the sliding block and is in sliding connection with the sliding block. One end of the first spring is fixedly connected with the sliding block, and the other end of the first spring is fixedly connected with the steel needle. The bottom end of the left end face of the sliding block is fixedly connected with a sliding frame. The inner side of the sliding frame is in sliding connection with a sliding shaft. The left end face of the sliding shaft is fixedly connected with an eccentric wheel. The inner side of the left end face of the box body is fixedly connected with a first motor. In the cleaning device, through the arranged first motor and eccentric wheel, the eccentric wheel is driven by the first motor to rotate to control up-and-down motion of the steel needle, a spray head is dredged, clearing work is facilitated, and the spray head is cleared faster and more thoroughly through high-frequency clearing.

The invention discloses a coffee machine, comprising a shell and an infusing device matched with the shell, wherein the shell is internally provided with a water storage tank; the water storage tank comprises a first water storage tank and a second water storage tank; the second water storage tank is connected with a boiling vessel for providing steam and hot water; the boiling vessel is communicated with the infusing device through a connecting pipe; a container body is arranged between the first water storage tank and the infusing device; the container body is provided with a water inlet and a water outlet; the water inlet of the container body is connected with the first storage tank; the water outlet of the container body is connected with the infusing device; and the container body is further provided with a pressurizing device for pressurizing to discharge water. The coffee machine is special and novel in the design, obviously shortens the infusing time of the first cup of coffee without influencing the taste of the infused coffee, and is simple in the structure, convenient and practical.

The invention discloses an indoor measuring apparatus and method for dynamic spray deposition distribution characteristics of a boom sprayer. The measuring apparatus comprises a motion simulation platform for installing a spray boom, and is characterized in that the measuring apparatus is provided with a dynamic spray distribution measuring system. The dynamic spray distribution measuring system comprises a test computer and one or more online measuring unit, the online measuring unit is provided with a belt conveyor, a measuring capacitance sensor, a reference capacitance sensor, a temperature sensor and a drying device, and signal output ends of the measuring capacitance sensor, the reference capacitance sensor and the temperature sensor are separately connected with the test computer. By adopting the measuring apparatus and method, the change of an electric signal of a capacitor is analyzed and measured, so that the spray distribution uniformity of the boom sprayer under the field operation motion state can be measured, and the optimization test of the spray boom operation parameters can be carried out; and moreover, the indoor measuring apparatus is novel in design concept, convenient in operation, easy in construction and suitable for popularization and application.

The invention discloses a waste gas centralized processing device used for a hot in-place recycling machine. The waste gas centralized processing device comprises an air heater. The air heater is provided with a low oxygen burner and connected with an air outlet pipeline. The air outlet pipeline is connected with a first ground heating plate. Air outlet holes and air recycling openings are formed in the first ground heating plate. The air recycling openings communicate with an air return pipeline. The end of the air return pipeline is connected with an air volume distributor. The air volume distributor is connected with the low oxygen burner through a first conveying air duct and connected with an electric heating smoke removing device through a second conveying air duct. An air outlet of the electric heating smoke removing device is connected with a second ground heating plate. According to the waste gas centralized processing device used for the hot in-place recycling machine, poisonous and harmful asphalt flue gas produced by heating of an old asphalt pavement is subjected to centralized collection and centralized processing through the air negative pressure; fuel is fully and circularly utilized; pollution-free hot air is formed after the poisonous and harmful asphalt flue gas is processed; the ground is continuously subjected to heat preservation and heating; energy conservation and environment protection are achieved; atmospheric pollutants are not produced; and the design concept is novel, scientific and environmentally friendly.

An integral roof suspended ceiling component comprises a structural frame beam and at least two pairs of fixed connection pieces between the structural frame beam and a roof, wherein the structural frame beam is formed by combining a pair of longitudinal beams and a cross beam through connecting pieces, and the installation position of the structural frame beam relative to the roof can be properly adjusted within three-dimensional space. Each fixed connection piece between the structural frame beam and a roof top board is composed of at least four sets of combined hanging pieces. Each set of combined hanging piece comprises a sliding screw, a fixed board, an adjusting gasket, a first adjusting and locating nut, a second adjusting and locating nut, a screw rod, a first fixing nut and gasket, a pressing board of the structural frame beam, a hooking piece of the structural frame beam and a second fixing nut and gasket from top to bottom, wherein the sliding screw, the fixed board, the adjusting gasket, the first adjusting and locating nut, the second adjusting and locating nut, the screw rod, the first fixing nut and gasket, the pressing board of the structural frame beam, the hooking piece of the structural frame beam and the second fixing nut and gasket are sequentially connected. The structural frame beam and the roof top board are connected only through the four combined hanging pieces instead of any keel, a suspended ceiling board and the structural frame beam can be connected very conveniently, so that installation processes are reduced, installation time is shortened, labor intensity is relieved, working period is shortened, and the probability of punching through floors is lowered to the maximum extent.

The invention discloses a Dy monomolecular magnetic material and a preparation method thereof, relating to a monomolecular magnetic material and a preparation method thereof and aiming at solving the problems that the existing monomolecular magnetic material has an unstable structure and the preparation method is complicated and low in yield. The expression of the Dy monomolecular magnetic material is [Dy(nma)(NO3)2(DMSO)].CH3OH, the structural formula is as shown in the specification. The preparation method comprises the following steps: mixing dichloromethane, methanol and dimethyl sulfoxide, to obtain a mixed solvent; then adding dysprosium nitrate, histamine dihydrochloride, potassium hydroxide and 2-formyl-8-hydroxyquinoline into the mixed solvent, stirring and reacting for 12h-24h, and then filtering to obtain a filtrate; and dropwise adding ether into the filtrate, and standing to obtain the Dy monomolecular magnetic material. The yield of the prepared Dy monomolecular magnetic material is 70%-72%. The invention provides a Dy monomolecular magnetic material and a preparation method thereof.

The invention relates to the technical field of office supplies, in particular to an umbrella rainwater recycling device for an office. The umbrella rainwater recycling device comprises a shell, a water outlet pipe is communicated with the lower right end of the shell, a waterwheel is arranged below the water outlet pipe, a supporting frame is rotationally connected to the waterwheel, an electricity generator is arranged on the waterwheel, a wire is electrically connected to the bottom end of the electricity generator, a charging base is electrically connected to the other end of the wire, a power bank is arranged inside the charging base, a drainage plate is arranged at the right end of a supporting leg, the left and right sides of the drainage plate are fixedly connected to the supporting leg and the supporting frame, and a liquid accumulation bottle is arranged at the bottom of the lower right end of the drainage plate. By arranging the waterwheel, the electricity generator, the charging base and the power bank, the waterwheel can be pushed by means of the gravitational potential energy of rainwater on an umbrella to rotate, and therefore the electricity generator is drive for charging the power bank; the device is novel in design and concept, scientific in design and worthy of being used and popularized and has the huge economic benefit and wide market prospect.

The invention discloses a heavy duty plate feeder capable of realizing smooth transmission, and relates to material transportation and transshipment equipment. The heavy duty plate feeder comprises a drive shaft, a sealed chain belt wound on the drive shaft and a tension shaft, and chain supporting rollers for supporting the chain belt, wherein a drive chain unit is arranged on two sides of each chain unit component of the chain belt; a transverse H-shaped bearing plate is fixed in the middle; the drive chain unit is connected with the transverse H-shaped bearing plate; the sealed chain belt is engaged with a chain wheel of the drive shaft by the drive chain unit; guide wheels engaged with the chain belt are arranged at the position, corresponding to the chain wheel, of two ends of the tension shaft; the chain supporting rollers are arranged along equipment longitudinally in five lines; the chain supporting rollers in the two outer lines are chain belt driving rollers which are provided with ribs and arranged below the drive chain unit; and the chain supporting rollers in the three inner lines are chain belt bearing rollers arranged below the transverse H-shaped bearing plate. The heavy duty plate feeder has the advantages of effectively solving the problems of shock vibration and deviation of the chain belt in the transmission process, reducing wearing of the chain belt, prolonging operation period and improving production efficiency of equipment.

A device for betelnut sheet entering into mould wherein the chassis is provided with an oscillating conveyer, the conveying trough end socket of the oscillating conveyer is provided with a plurality of movable supporting boards, which are driven by actuating mechanism controlled by the electrical control box, the front end of the movable supporting board is mounted with a mould entering skewed slot.

The invention relates to the technical field of machines, in particular to a multilayer crushing type dustproof stone crusher. The multilayer crushing type dustproof stone crusher comprises a case. Acrushing bearing sleeve is arranged at the center position in the case. A crushing bearing is arranged at the center position in the crushing bearing sleeve. The center position of the top end of thecase communicates with a feeding hopper. The right side of the top end face of the case is fixedly connected with a water tank. A water faucet is arranged at the bottom end of the left end face of thewater tank. The center position of the bottom end in the case is fixedly connected with a motor. The bottom end of the motor is fixedly connected with a gasket. The tail end of a motor spindle is fixedly connected with the crushing bearing. The bottom end of the crushing bearing is fixedly connected with a first gear. In the multilayer crushing type dustproof stone crusher, through the arrangement of the gasket, the running-in distance between the crushing bearing and the crushing bearing sleeve can be changed by changing the number of the gasket, and therefore the aim of controlling the sizeof crushed stone particles is achieved, and the huge cost brought by machine replacement is avoided.

The invention relates to the technical field of shipping of a ship, in particular to a ship bottom cleaning device for shipping of a ship. The ship bottom cleaning device for shipping of the ship comprises a cleaning device and a base, wherein the top of the base is fixedly connected with a supporting column; the top end of the supporting column is fixedly connected with a cross plate; the top endsurface of the cross plate is fixedly connected with a supporting rod; the top end of the supporting rod is fixedly connected with a ball and socket joint; the top end of the ball and socket joint isfixedly connected with a connecting rod; a loop bar is arranged on the outer side of the supporting rod; the top end of the loop bar is in sleeve connection with a sleeve; a compression spring is arranged on the outer side of the loop bar; and the top end of the sleeve is fixedly connected with a connector. In the ship bottom cleaning device for shipping of the ship, by arrangement of the ball and socket joint, the connector, the loop bar, the sleeve and the compression spring, the irregular bottom end of the ship can be mechanically cleaned, the cleaning efficiency is ensured, and the cleaning efficiency is further ensured. The ship bottom cleaning device for shipping of the ship is novel in design concept and scientific in design, has huge economic benefit and extensive market prospect,and is worthy of being popularized and used.

The invention relates to a straight-way solar energy heat exchange heat collector using solar energy as a heat source and belongs to the technical field of medium and high temperature solar energy utilization. The straight-way solar energy heat exchange heat collector comprises a straight-way transparent tube, a multi-curved face metal heat exchange tube, heat exchange tube end enclosures, a metal expansion joint, adsorbent storage rings, concave spacing sealing rings, metal snap rings, a working medium channel pipe, metal cover plates, sealing fixed plates, card type shield covers and vacuum connectors, wherein the two ends of the multi-curved face metal heat exchange tube are welded and fixed with the heat exchange tube end enclosures; the working medium channel pipe is connected with the heat exchange tube end enclosures; the multi-curved face metal heat exchange tube is provided with the metal expansion joint; the working medium channel pipe passes through the center of the metal cover plate to form an multi-curved face metal heat exchange tube component which is integrally sleeved in the straight-way transparent tube and the two ends of which are sequentially provided with the adsorbent storage rings, the concave spacing sealing rings and the metal snap rings; the sealing fixed plates seal and fix the metal snap rings and the metal cover plates; the two ends of the straight-way transparent tube are provided with the card type shield covers; and the vacuum connectors are fixed on the card type shield covers.

The invention discloses a data mining-based elevator accident pre-warning and forecasting system. The system comprises a data import module, a data mining module and a data export module, which are operated on a Hadoop platform, wherein the data import module is used for importing original data in an elevator remote supervision system database SQLServer to serve as a data source of data mining, and storing the data source; the data mining module is used for carrying out data mining on the stored data source; and the data export module is used for exporting a result obtained by the data mining into the elevator remote supervision system database SQLServer for subsequent analysis. The data mining-based elevator accident pre-warning and forecasting system is capable of carrying out clustering analysis and association rule mining on elevator data, so that the sufficiency of data mining is ensured, the efficiency of data mining is improved, and powerful data support is provided for the pre-warning and forecasting of elevator accidents; and the system is suitable for elevator monitoring and elevator rescue.

The invention provides a series type fresh air system used for classrooms. A purifying system is mounted between a front-end classroom (1) and a tail-end classroom (2); a first fresh air unit is mounted on a rear wall of the front-end classroom (1); the first fresh air unit comprises a fan unit I (5), an auxiliary heating unit (6) and a filter unit I (7); an air inlet of the fan unit I (5) communicates with the outdoor, and an air outlet of the fan unit I (5) communicates with the auxiliary heating unit (6); the auxiliary heating unit (6) communicates with the filter unit I (7); a first ventilation hole (8) is formed in the front wall of the front-end classroom (1); a second fresh air unit is mounted on the rear wall of a second classroom (9); and the second fresh air unit comprises a fan unit II (10), a first heat exchange unit I (11), a fan unit III (12) and a filter unit II (13). The fresh air system is not used in single classroom, and is used by acting between adjacent classrooms, and an air return pipeline does not need to be independently laid in each classroom, so that time and labor are saved, mounting and using cost is greatly reduced, use threshold is low, and energetic popularization is facilitated.

The invention relates to the technical field of textile machines, in particular to a collecting device which collects cloth neatly and is used for a textile machine. The collecting device comprises abox. The left end face of the box is provided with a feeding opening. The cloth is arranged in the feeding opening. The bottom end face of the cloth is provided with a collecting box. A transverse rodis arranged over the collecting box. A fixing block is connected to the outer side of the transverse rod in a sliding manner. A first motor is arranged in the fixing block. A first gear is fixedly connected to the tail end of a main shaft of the first motor. A rack is fixedly connected to the bottom end face of the transverse rod. An electric telescoping rod is fixedly connected to the center position of the bottom end face of the fixing block. A fixing plate is fixedly connected to the bottom end face of the electric telescoping rod. According to the collecting device, by means of the arranged collecting box, the transverse rod, the fixing block and the electric telescoping rod, the collecting device can swing back and forth automatically, the cloth can be collected conveniently and neatly, the design concept is novel, the design is scientific, and the collecting device has great economic benefits and wide market prospects and is worthy of being used and popularized.