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53results about How to "Simple and convenient design" patented technology

Energy-saving hydraulic system of electric forklift

ActiveCN102134047ASimple, convenient and reliable electrical controlEasy to operateLifting devicesPotential energySafety valve
The invention relates to an energy-saving hydraulic system of an electric forklift. The system comprises a one-way valve, a motor, a multi-way valve and the like, wherein the multi-way valve is a plate valve and comprises an oil inlet/return valve sheet, a lifting reversing valve sheet, a middle connection valve sheet, an oblique reversing valve sheet and an oil inlet valve sheet; the one-way valve and a main safety valve are arranged in the oil inlet/return valve sheet which is externally connected with an oil port P1 and an oil return port T1; the lifting reversing valve sheet is a three-position six-way reversing valve sheet, a middle-position channel, a right-position oil channel and a left-position oil channel are arranged in the lifting reversing valve sheet, and the lifting reversing valve sheet is externally connected with oil ports A1, Pt and T2; the middle connection valve sheet is a transitional connection valve sheet, and a three-way pipe is arranged in the middle connection valve sheet; the oblique reversing valve sheet is a three-position six-way reversing valve sheet, a middle-position oil channel is arranged in the oblique reversing valve sheet, and the oblique reversing valve sheet is externally connected with oil ports A2 and B2; and an oblique overflow valve, a reversing overflow valve and a priority valve are arranged in the oil inlet valve sheet, and the oil inlet valve sheet is externally connected with oil ports P2, CF and Ls. Through the invention, after the electric forklift is charged once, the recovery efficiency of potential energy can reach 59.7%, the total recovery efficiency of the system can reach 31.3%, and the working time of the electric forklift can be prolonged by 1/5.
Owner:ANHUI HELI CO LTD

Automobile ventilation control device and control method of automobile ventilation control device

The invention relates to an automobile ventilation control device and a control method of the automobile ventilation control device. The automobile ventilation control device comprises an air conditioner, wherein the air conditioner is arranged in an automobile, an air conditioner control panel used for controlling the air conditioner is arranged on the air conditioner, a filter element is arranged in the air conditioner, the automobile ventilation control device also comprises an on-line particle monitor, a server, an intelligent communication device and a ventilation controller in mutual connection, wherein the on-line particle monitor is connected with the server through a wireless network, the server and the intelligent communication device are in interactive connection through a wireless broadband network, the intelligent communication device is connected with the ventilation controller in a wireless mode, and the ventilation controller is connected with the air conditioner control panel through a cable wire. The automobile ventilation control device and the control method of the automobile ventilation control device have the advantages that ventilation equipment such as the air conditioner in an automobile can be timely and automatically switched according to the air quality inside and outside the automobile, the efficient ventilation and air change are realized, and the effect of preventing outside severe air from polluting the inside of the automobile is fully guaranteed, so that fresh air enters a cab, the air in the automobile keeps clean and healthy, the real-time guarantee on the breathing health of people is realized, and the automobile ventilation control device and the control method are suitable to be popularized and used in relevant transportation equipment.
Owner:北京每日互联科技有限公司

Single-cell transcriptome library establishment method and application thereof

The invention provides an optimized single-cell transcriptome library establishment method. The method comprises the following steps: (1) obtaining a sample RNA through cell lysis or extraction; (2) performing reverse transcription operation on the sample to make the RNA form cDNA through reverse transcription; and (3) constructing a transcriptome library by using a separated cDNA, wherein the step (3) of constructing the transcriptome library by using the separated cDNA comprises the following steps: (3-1) performing a tail adding reaction or adopting a single-chain connection manner to add an adaptor; (3-2) performing two-chain synthesis on the cDNA and performing an amplification reaction; (3-3) performing exponential amplification; and (3-4) after transcriptome library construction isperformed on the cDNA amplification product subjected to step (3-3) treatment, removing ''useless DNA''; or after the ''useless DNA'' in the cDNA amplification product subjected to step (3-3) treatment, constructing a transcriptome library. Compared with the prior art, the method provided by the invention is more high-efficiency, simpler, more practical and more accurate, has less pollution, lessloss, low costs and good method repeatability, expands the application range of the sample and improves the precision degree of detection.
Owner:SHANGHAI MAJORBIO BIO PHARM TECH

Continuous air blast type strong wind warm blast furnace

The invention discloses a high air temperature hot air furance for continuously supplying hot air, and belongs to the technical field of auxiliary equipment of hot air furnace of an ironmaking blast furance in the iron and steel industry. The hot air furnace comprises a furnace top, a combustion chamber, checker bricks, a connecting pipe and the like. The hot air furnace is characterized in that the checker bricks in the furnace are separated into an upper group and a lower group which are arranged at intervals, one group of checker bricks are used for heat storage, the other group of checker bricks are used for air supply, a combustor is arranged on the furnace top, and after combustion, flue gas passes through the furnace top, the connecting pipe, a ring channel and a nozzle and enters the checker bricks for combustion and heat storage in the mode of small flow; at the same time, cold air enters the other group of checker bricks and is preheated to be high temperature air and subjected to reversing control by a reversing valve; the working conditions in the two groups of checker bricks are opposite, and the cycle is repeated again and again, and the high temperature air is continuously supplied. The hot air furnace has the advantages of realizing the supply of the high temperature air at a temperature of between 1250 and 1600 DEG C by completely burning low-heat value coal gas and meeting the needs of blast furnace ironmaking, along with simple structural design, self pre-heating and continuous hot air supply.
Owner:SHOUGANG CORPORATION

Horizontal gas/gas two-phase composite straight line reference method and apparatus based on gravity force balance

A horizontal gas-gas two phase composite beeline benchmark method and a device based on the gravity balance belong to the technical field of precision instruments and measurement. The method comprises the steps: a balance slideway is constructed below of an orientation slideway, which forms an open external gas support and acts on an anti-thrust plate in the lower part of a flotation guide cover, the gravity balance of the orientation slideway and the balance slideway is designed aiming at the load gravity, under the conditions of satisfying the load gravity of the balance slideway, and the gas film supporting stiffness arrives the maximum or is in the confirmed range of the gas film supporting stiffness; the device comprises the anti-thrust plate fixedly connected with lower part of the flotation guide cover, an anti-thrust flotation dual surface is formed between the anti-thrust plate and the balance slideway, the anti-thrust plate is provided with a throttle structure facing to the balance slideway which is parallel to the orientation slideway. The invention leads the flotation guide cover to have excellent stability, the slideway load capability and the supporting stiffness are greatly improved, the high linear accuracy of the slideway under big load and big stroke is ensured, the structure is simple, and the application scope is wide.
Owner:NANTONG MINGGUANG ELECTRIC WIRE

Welding staring circuit of IGBT inverted gas protective welder

The invention relates to a welding staring circuit of an IGBT inverted gas protective welder, which has a structure that a primary coil of a control transformer is connected with an industrial power supply, a secondary coil of the control transformer is serially connected with a primary coil and a first resistor of an isolation transformer, a secondary coil of the isolation transformer is serially connected with a welding gun switch, and two ends of the first resistor are connected with two ends of a second resistor through a rectifier bridge and a filter capacitor; two ends of the second resistor are connected with the input ends of an optical coupler, one of the output ends of the optical coupler is connected with a high level of a power supply, the other output end is grounded through a fourth resistor, and voltage obtained at two ends of the fourth resistor serves as a switching signal of a post-control circuit. The invention has the advantages that the design of the circuit is simple, optimized, safe and reliable; the isolation transformer ensures that the welding gun switch is isolated from the control circuit, thereby preventing high-frequency signal from directly entering into the control circuit; 9V of AC controls the primary side of the optical coupler after rectified and filtered, thereby ensuring that a fore-circuit is isolated from a post-circuit again; and finally the whole service life of the welder is prolonged.
Owner:无锡聚合科创发展有限公司

Horizontal gas/gas two phase composite linear primary method and device based on gravity balance

A horizontal gas-gas two phase composite beeline benchmark method and a device based on the gravity balance belong to the technical field of precision instruments and measurement. The method comprises the steps: a balance slideway is constructed below of an orientation slideway, which forms an open external gas support and acts on an anti-thrust plate in the lower part of a flotation guide cover, the gravity balance of the orientation slideway and the balance slideway is designed aiming at the load gravity, under the conditions of satisfying the load gravity of the balance slideway, and the gas film supporting stiffness arrives the maximum or is in the confirmed range of the gas film supporting stiffness; the device comprises the anti-thrust plate fixedly connected with lower part of the flotation guide cover, an anti-thrust flotation dual surface is formed between the anti-thrust plate and the balance slideway, the anti-thrust plate is provided with a throttle structure facing to the balance slideway which is parallel to the orientation slideway. The invention leads the flotation guide cover to have excellent stability, the slideway load capability and the supporting stiffness are greatly improved, the high linear accuracy of the slideway under big load and big stroke is ensured, the structure is simple, and the application scope is wide.
Owner:NANTONG MINGGUANG ELECTRIC WIRE

Novel pug cut-off machine

The invention discloses a novel pug cut-off machine and belongs to the field of cut-off equipment. The novel pug cut-off machine comprises a bottom frame and is characterized in that the bottom frame abuts against a pug shaping machine body, a cutting ring is arranged at the end, connected with the pug shaping machine body, of the bottom frame and fixed onto the bottom frame through a movable steel pipe, the movable steel pipe is connected with a motor, and the movable steel pipe is controlled to circularly swing in the left-right direction through the motor; a steel wire is arranged in the cutting ring, a check block is arranged on the bottom frame and used for controlling the swing angle of the cutting ring, and the movable steel pipe is a double-layer steel pipe; an outer-layer steel pipe body is in a hollow semi-ring shape, the two ends of the outer-layer steel pipe body are each inwards provided with a baffle, and an inner steel pipe body is tangent to the outer steel pipe body; and the upper end of the inner steel pipe body is provided with a baffle, and the inner steel pipe body is connected with the motor. According to the novel pug cut-off machine, design is simple and convenient, effective innovation is achieved, the cutting ring makes circularly-reciprocating movement through the motor, and by adjusting the movement speed of the cutting ring, pug after shaping is cut into fixed sizes; and the design is simpler and more convenient, and operation is easy.
Owner:ANHUI PROVINCIAL HANSHAN MINSHENG PORCELAIN

Self-adaptive filtering control circuit applied to multi-voltage output LDO chip

ActiveCN112148055ASimple and convenient designTo prevent excessive resistance from cutting off the circuitAdaptive networkElectric variable regulationIntegrated circuitControl switch
The invention discloses a self-adaptive filtering control circuit applied to a multi-voltage output LDO chip, and belongs to the field of integrated circuit design. The self-adaptive filtering controlcircuit comprises an error amplifier, a buffer circuit, a resistance feedback network, a control circuit and a self-adaptive filtering circuit; the error amplifier and the buffer circuit are used forgenerating and amplifying a negative feedback signal; the resistance feedback network is used for controlling the output voltage; the control circuit is used for generating a control voltage; and theself-adaptive filtering circuit is used for filtering power supply voltage noise. When the control signal generated by the control circuit is used for controlling a MOS switch, filtering is carried out by the self-adaptive filtering circuit, so that the PSRR index of the LDO is prevented from being influenced by power supply noise. The self-adaptive filtering control circuit has the following technical advantages that firstly, the structure of the self-adaptive filtering control circuit not only can reserve the advantages of a traditional resistance feedback network, but also can avoid the existing problems; and secondly, a large resistor required by the filtering circuit can be integrated in a low-cost on-chip manner and is self-adaptive, so that the possibility that the circuit is cut off due to overlarge resistance can be prevented.
Owner:HUNAN UNIV
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