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91results about How to "Realize practicality" patented technology

Novel unit module for solar-powered self-driven electronic paper apparatus and method for preparing same

The invention relates to the technical field of electronic paper apparatuses, in particular to a unit module for a self-driven organic-inorganic electro-chromic electronic paper apparatus. The unit module is characterized in that the unit module has the following structure: a lower conductive film of cathode conductive glass is provided with a square etching region; the lower conductive film outside the square etching region is provided with an energy storage film layer and a solar cell light anode in turn; the lower conductive film inside the square etching region is provided with an electro-chromic cathode; an encapsulating material is arranged in the etching region and around the lower conductive film; the anode conductive glass and cathode conductive glass are longitudinally symmetrically arranged on the encapsulating material so as to be solidified into zigzag inner and outer cavities; an electro-chromic capacitance layer and a large-grain TiO2 reflecting layer are arranged in turn below an upper conductive film of the inner cavity; a Pt film counter electrode is arranged below the upper conductive film of the outer cavity; and the inner and outer cavities are respectively provided with electro-chromic electrolyte and solar cell electrolyte. Compared with the prior art, the novel unit module has the advantages of simple technique and low cost.
Owner:EAST CHINA NORMAL UNIV

Humanoid manipulator control system based on in-depth learning and control method thereof

ActiveCN110202583AIntelligent improvement of manipulator controlRealize practicalityProgramme-controlled manipulatorAutomatic controlDecision-making
The invention discloses a humanoid manipulator control system based on in-depth learning and a control method thereof. The system comprises an image acquisition module, an object detection and recognition module and a humanoid manipulator control and decision-making module, wherein the image acquisition module is used for achieving an image acquisition and image pretreatment function for a workingscene; the object detection and recognition module is used for detecting target objects in acquired images and recognizing corresponding categories; and the humanoid manipulator control and decision-making module is used for planning a humanoid manipulator motion locus, performing motion decision-making on positions where the target objects are located according to treatment results of the two above modules, and achieving motion locus self-learning. According to the humanoid manipulator control system, an automatic control system is established, self-actuated working can be achieved under conditions without human intervention, the intelligence of machines is improved, the system can be widely applied to environments including factories, workshops, logistics and the like where object sorting and other operation are needed, and the market prospects and the potential value are good.
Owner:SOUTH CHINA UNIV OF TECH

Low-radiation self-cleaning composite function glass and producing method

This invention relates to a low radiation self-cleaning complex function glass. This glass has trilamellar membrane structure, membranous layer from glass outward in turns is : SiO2 transition layer, ion adulterated SnO2 layer, ion adulterated SiO2 - TiO2 layer. The on-line preparation method is sol-gel method, combine with atomizing sedimentation, utilize thermal decomposition and coagulation process of collosol at 450 to 550 deg to proceed heat sedimentation, in turns form membranous layer on the on-line glass plate surface. This invention through controlling the coating material concentration, dopant ion variety, thermal decomposition temperature and membranous layer thickness bring low radiation to the glass coated this membrane, execute stable uniwafer low emissivity glass, reduce cost, and realize reprocessing treatment of low radiation steeling and hot bending. This invention applies to common building and shield glass.
Owner:CHINA LUOYANG FLOAT GLASS GROUP

A power distribution equipment health state assessment method and system

The invention provides a power distribution equipment health state assessment method and system. The power distribution equipment health state evaluation method comprises the following steps: establishing a power distribution equipment state evaluation model by adopting a multi-stage fuzzy comprehensive evaluation method; Analyzing the defect severity of each part of the power distribution equipment in the power distribution equipment state evaluation model by using an analytic hierarchy process, establishing an evaluation matrix of each part of the power distribution equipment, and determining the weight of each evaluation index; Analyzing an evaluation matrix of each part of the power distribution equipment by utilizing a fuzzy evaluation method and the weight of each evaluation index, and obtaining a comprehensive initial score of the power distribution equipment through a weighting membership degree principle; Constructing an identification framework of the power distribution equipment state evaluation model, and determining the weight of the defect severity; And performing weighted calculation on the comprehensive initial score of the power distribution equipment and the weight of the defect severity to obtain a comprehensive score value of the health state evaluation of the power distribution equipment.
Owner:STATE GRID SHANDONG ELECTRIC POWER

Up-conversion device capable of achieving full-gloss microwave based on cross polarization modulation

ActiveCN103944643AOvercoming bandwidthOvercoming weightRadio-over-fibreLow-pass filterPolarizer
The invention discloses an up-conversion device capable of achieving full-gloss microwave based on cross polarization modulation. The up-conversion device comprises a narrow line width laser, a first polarization modulator, a microwave signal source, a first polarization controller, a first optical filter, a circulator, a polarization beam splitter, a third polarization controller, a fourth polarization controller, an optical coupler, a high nonlinear optical fiber, a tunable laser, a waveform generator, a strength modulator, a second polarization controller, a polarizer, a second optical fiber, a single mode optical fiber, a photoelectric detector, an electric amplifier, an electric frequency mixer and a low pass filter. The up-conversion device can solve the problems of base band digital signal up-conversion in a radio over fiber system, the change, caused by dispersion, of microwave power along with microwave frequency and periodic damping, caused by the change of propagation length, of microwave power.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI

Method and device for collecting network parameters of WLAN (Wireless Local Area Network)

The invention provides a method and a device for collecting network parameters of a WLAN (Wireless Local Area Network). The method comprises the following steps of: setting at least one label for network parameters to be collected, wherein the label includes an equipment type, a manufacturer name and a corresponding collection mode; and collecting the network parameters according to the set label, i.e. obtaining the corresponding collection mode from the label corresponding to the network parameters to be collected according to the equipment type and the manufacturer name of a network element and collecting the network parameters according to the obtained collection mode. The invention can collect the parameters of miniature wireless equipment of multiple brands and different protocols, diversify collection measures and collection parameters and reduces the development workload in adding new equipment or newly collecting indexes.
Owner:CHINA MOBILE GRP GUANGDONG CO LTD

Simplified cultivating method for dry-cure pepper

The invention discloses a simplified cultivating method for dry-cure pepper. The method improves the emergence rate, the planting percent and the strong seedling rate of direct-seeded seeds of pepper by covering and using direct-seeding nutrition balls and direct-seeding nutrition matrix. The method furhter solves the problems that surface layers in field direct seeding is prone to hardening due to the fact that soil temperature and humidity are affected by environment to be large in change to be unfavorable for seed emergence of pepper seeds and growth of seedlings. In addition, the method achieves practicability of pepper direct-seeding techniques and widens popularization and application ranges. By means of black film covering and direct seeding cultivation, the problems of weed growth in fields and serious pepper lodging are effectively solved, minimal tillage or zero tillage in fields are achieved, the use of weed killers is reduced, specific fertilizers are screened through tests to solve the problem of one-time fertilization in pepper production, additional fertilizers are avoided in pepper production on the premise of avoiding output reduction of peppers, and the problem of harvesting dry-cure scatter and fresh peppers at one time in a concentrated mode is solved. Thus, the purposes of achieving low cost production of peppers and improving pepper quality are achieved.
Owner:贵州省辣椒研究所

Preparation method of MnOx-CeO2 composite semiconductor catalyst

The invention relates to a preparation method of a MnOx-CeO2 composite semiconductor catalyst which has the function of low-temperature photo-thermal concerted catalytic purification of VOCs and the light-assisted self repairing function. The chemical formula of the MnOx-CeO2 composite semiconductor catalyst is Ce<1-a>MnaO<2-Delta>, wherein a is larger than 0 and smaller than 0.7; the method comprises the following steps: (1) weighing Ce salt and KMnO4, and dissolving in an alkaline solution to obtain a mixed suspension solution; (2) sealing the mixed suspension solution to have a hydrothermal reaction to obtain a precipitate; (3) separating the prepared precipitate, washing, drying and then grinding to obtain the MnOx-CeO2 composite semiconductor catalyst.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI

Multi-user remote parallel computation system

ActiveCN102646223ASolve the conflict problem of concurrent operationImplement permission controlResourcesTransmissionWeb servicePower system scheduling
The invention belongs to the field of power systems, and particularly relates to a multi-user remote parallel computation system. The multi-user remote parallel computation system comprises a WEB server, an application server, a database server, a parallel computer group and network connection switching equipment, wherein the WEB server, the application server, the database server and the parallel computer group are respectively connected with the network connection switching equipment. According to the technical scheme provided by the invention, the design scheme that the software system adopts 'concentrated storage, data sharing, remote maintenance, cooperation and component integration' as the predominant idea while meeting the requirements of 'practicability, modularization, integrity and expandability' is determined, and the requirements of the mode calculation of the power system on functions and performances of a computer software system and the need for relatively flexible updating and maintenance of the system are comprehensively considered. According to the multi-user remote parallel computation system provided by the utility model, the reliability and the mode calculation working efficiency of power grid data are comprehensively improved.
Owner:CHINA ELECTRIC POWER RES INST +1

Non-contact conductometry measuring device stimulated by quartz crystal oscillator and method

The invention discloses a non-contact conductometry measuring device stimulated by a quartz crystal oscillator and a method. In an excitation source of the quartz crystal oscillator, the output end of the quartz crystal oscillator is connected with the input end of a DC-blocking and amplitude-adjusting circuit the output end of which is connected with one end for quartz crystal measurement, wherein in the quartz crystal oscillator, a stimulating quartz crystal and a measuring quartz crystal have the same impedance-frequency characteristics, the input end of a first inverter is respectively connected with one end of a first resistor and one end of the stimulating quartz crystal, the output end of the first inverter is respectively connected with the other end of the first resistor and one end of a first capacitor, the input end of a second inverter is respectively connected with the other end of the first capacitor and one end of the second resistor, the output end of the second inverter is respectively connected with the other end of the second resistor and one end of an adjustable capacitor, and the other end of the adjustable capacitor is connected with the other end of the stimulating quartz crystal. The invention realizes the miniature and the practicability of the conductometry measuring device, has wider measuring range and takes favorable effect.
Owner:ZHEJIANG UNIV

Compact iron casting automatic cleaning system

The invention discloses a compact iron casting automatic cleaning system which comprises a closed cleaning room. A dust removing and collecting machine is arranged on the outer side of the closed cleaning room. A robot is arranged in the closed cleaning room. The tail end of a mechanical arm of the robot is provided with an electric spindle which is provided with a tool handle connector. The robot can conduct tool changing through the tool handle connector. A tool charger protection room and a hydraulic station are arranged on one side of the robot, a tool charger is arranged in the tool charger protection room, and multiple tools are arranged in the tool charger. A robot control cabinet, an oil cooling machine and a system control cabinet are arranged on the other side of the robot. A rotary table is right opposite to the mechanical arm. A position changer is installed on the rotary table. A chip collecting device is located below the working position of the mechanical arm. According to the compact iron casting automatic cleaning system, automatic cleaning of larger casting head castings, protection design of various tools and tool chargers, design of three-axis rotary tables and compact system layout design are achieved, and flexible, intelligent and practical iron casting automatic cleaning and machining are achieved.
Owner:SHANGHAI FANUC ROBOTICS

Microwave pulse signal generating device based on light-operated nonlinear annular mirror

The invention discloses a microwave pulse signal generating device based on a light-operated nonlinear annular mirror. The device comprises a mode locking pulse laser, a first intensity modulator, a first code pattern generator, a first optical coupler, a first polarization controller, a second optical coupler, a second polarization controller, a variable optical attenuator, a light amplifier, a narrow linewidth laser, a semiconductor optical amplifier, a third polarization controller, a polarization maintaining optical fiber, a fourth polarization controller, an optical band pass filter, a dispersion element, a photoelectric detector, a sampling oscilloscope, a signal source analyzer, a second code pattern generator and a second intensity modulator. The phase and the duty ratio of microwave pulse signals produced by the microwave pulse signal generating device based on the light-operated nonlinear annular mirror can be tuned, the disadvantages of a traditional electronics method in the aspects of the bandwidth, the weight, the size, the electromagnetic interference and the like are overcome, and the purpose of producing high-frequency waveform microwave pulse signals with any waveform through the electronic technology is achieved.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI

Preparation method of nutrition ball and nutrition medium for direct seeding of dry pepper

The invention discloses a preparation method of nutrition ball and nutrition medium for direct seeding of dry pepper. The preparation method of the nutrition ball comprises the steps of grinding corn straw, then mixing the corn straw with humus and cow dung, stacking and fermenting the corn straw, the humus and the cow dung, drying or baking and grinding the fermented material after complete fermentation, mixing the material with vermiculite and perlite, adding a water-retaining agent and a binding agent into the material for mixing, adding water into the material to mix the material finally, loading the material into a die, performing pressing forming to the material, taking out the material after the material is dried, and obtaining the nutrition ball for direct seeding. By adopting the nutrition ball and the nutrition medium, the emergence rate, the planting percent and the sound seedling percent for the direct seeding of pepper are improved, the problem that as soil temperature and humidity are easy to be affect by environment and the changes are large, and soil is easy to harden, a surface layer is not beneficial to germination of pepper seeds and seedling growth is solved, the practicality of pepper direct seeding technology is realized, and the extension and application scope of the pepper direct seeding technology is expanded.
Owner:贵州省辣椒研究所

Two-freedom-degree hybrid stepping motor for bionic eyeballs of robot

The invention discloses a two-freedom-degree hybrid stepping motor for bionic eyeballs of a robot. The stepping motor comprises a first freedom degree motor, a second freedom degree motor and output shafts, wherein the first freedom degree motor is of a circular structure with a notch, the second freedom degree motor is of a circular structure with an opening, the notch is matched with the opening, and the planes of the two motors are perpendicularly orthogonal; the first freedom degree motor and the second freedom degree motor both comprise stators and rotors, the stators and the rotors can relatively move in the planes of the motors, and the two-freedom-degree movement of the output shaft of one freedom degree motor can be achieved through respective independent movement of the two freedom degree motors. The two-freedom-degree hybrid stepping motor has the advantages of being simple in structure and manufacture technology, convenient in analysis design, high in mechanical integration level, high in open-loop operation location accuracy, easy in performance experiment test and favorable for shortening the development period of products and improving the performance and the competitiveness of the products.
Owner:SHANDONG UNIV

Conductive substrate of large-area dye-sensitized solar cell and solar cell thereof

The invention discloses a conductive substrate of a large-area dye-sensitized solar cell, and a dye-sensitized solar cell with the conductive substrate. The conductive substrate comprises a transparent underlay, grid electrodes closely adjacent to the transparent underlay and arranged on the transparent underlay at intervals, and a conductive layer coated on the transparent underlay and coating the grid electrode, wherein the transparent underlay is a transparent substrate or a transparent polymer substrate. The width of the grid electrode is 2-100 microns and the interval between the two adjacent grid electrodes is 500-800 microns. The conductive layer is a transparent conductive layer and an ITO conductive layer, an ATO conductive layer or an FTO conductive layer is selected preferably. By distributing grid electrodes at intervals on the transparent underlay of the conductive substrate and adopting the structural design that the grid electrodes are coated by the conductive layer, the invention quickens the transmission speed of the electrons in the large-area dye-sensitized solar cell of the conductive substrate and reduces the loss of the electrons in the transmission process, thus realizing the large area and practicability of the dye-sensitized solar cell.
Owner:SHANGHAI UNIV

Air cycle refrigerating/cooling system and turbine unit used therefor

The invention relates to an air circulation refrigeration cooling system and a steam turbine assembly used therein. In this system, the gap between each impeller in the steam turbine assembly and the casing can be kept small, stable high-speed rotation can be obtained, and the long-term durability of the bearing supporting the main shaft in the steam turbine assembly can be improved and the life can be extended. In the air cycle refrigeration cooling system, the inflow air is controlled, compressed by the compressor (6) in the steam turbine assembly (5), and thermally adiabatically expanded by the expansion turbine (7) in the steam turbine assembly (5). In the steam turbine assembly (5), the compressor impeller (6a) of the compressor (6) and the steam turbine impeller (7a) of the expansion turbine (7) are installed on a common main shaft (13), and are connected by bearings (15, 16) The main shaft (13) is rotatably supported, and part or all of the thrust acting on the main shaft (13) is received by the electromagnet (17).
Owner:NTN CORP

Quantum random number generator and method for uniformly and alternatively changing standard base

The invention relates to a quantum random number generator, belonging to information security products. It mainly includes a photon source composed of a diode laser (DL), an attenuator (Θ) placed behind the diode laser (DL), a spectroscopic device placed behind the attenuator (Θ) and an avalanche diode (D1 ), (D2) composed of single-photon detectors (A), (B) and peripheral circuits, characterized in that the spectroscopic device is a Fresnel combination prism (Φ). The method for the quantum random number generator to uniformly alternately transform the standard basis is: if the previous measurement agrees that the signal detected by the first detector (A) is 1, and the signal detected by the second detector (B) is 0; then A measurement agrees that the signal detected by the first detector (A) is 0, and the signal detected by the second detector (B) is 1.
Owner:祝文军

Preparation method for foam carbon

The invention discloses a preparation method for foam carbon. The method comprises the following steps: manufacturing a dough, carrying out foaming and molding, carrying out pretreatment, and carryingout carbonization and sintering so as to prepare the foam carbon. According to the invention, when higher requirements are required, graphitization treatment can be carried out under a protective atmosphere to obtain graphitized foam carbon. The method provided by the invention has the following advantages: a carbon source is a renewable resource, such as flour and corn flour, and is cheap and easily available; and the method provided by the invention has simple and safe process and low cost, and facilitates realizing industrialization.
Owner:SOUTH CHINA UNIV OF TECH

Mold

The invention discloses a mold. The mold has excellent comprehensive properties. The mold is characterized in that high-strength and toughness coldwork mold steel SDC99 is utilized as a base material and a Cr-based wear-resistant anti-frictional coating CrTiAlN is coated on the surface of the base material, wherein the high-strength and toughness coldwork mold steel SDC99 comprise: by mass, 0.92% of C, 1.01% of Si, 0.27% of Mn, 9.50% of Cr, 1.94% of Mo, 0.88% of V, 0.12% of Ni and the balance of Fe; and the Cr-based wear-resistant anti-frictional coating CrTiAlN comprises: by mass, 74 to 76% of Cr, 8 to 10% of Ti, 5 to 7% of Al, 8 to 10% of N and 1% of Fe.
Owner:SHANGHAI HUIZHONG AUTOMOTIVE MFG

Automatic mutual connection equipment for counter, and mutual connection system for unmanned vehicle

The invention relates to automatic mutual connection equipment for a counter, and a mutual connection system for an unmanned vehicle. The automatic mutual connection equipment for the counter comprises a conveying device, a driving device, a positioning device and a main controller, wherein the conveying device is used for conveying the counter; the driving device is used for driving the conveyingdevice; the positioning device is used for detecting a relative position signal between the counter and a preset mutual connection position; and the main controller is used for judging whether the equipment achieves a preset position or not according to the signal detected by the positioning device, and starting the driving device after the equipment achieves the preset position. The automatic mutual connection equipment, which is put forward by the invention, for the counter enables a logistics vehicle to be separated from the counter, so that the automatic mutual connection and transmissionof the counter can be realized, and one big problem of an unmanned logistics distribution technology is solved so as to be favorable for realizing a purpose that unmanned logistics distribution is practical. The equipment is integrated to the logistics unmanned vehicle, and the equipment can finish counter mutual connection between the logistics unmanned vehicles under a situation that no peopleparticipate.
Owner:JIANGSU SUNING LOGISTICS CO LTD

Paste taking component and package

The invention discloses a paste taking component and a package comprising the same. The paste taking component comprises a taking cover capable of moving by clinging to paste, the taking cover is provided with a lower surface and an upper surface opposite to the lower surface, the lower surface is attached to the paste, a taking opening penetrates the upper surface and the lower surface, and at least part of the taking cover is capable of elastically deforming. As the taking cover is capable of globally or locally elastically deforming, after the taking cover is placed in a container, the taking cover can locally or globally deform under the action of the inner wall of the container to adapt to the change of the inner diameter of the container, and the taking cover can smoothly move up and down while keeping closely matched with the side wall of the container.
Owner:彭实

Thread defect detecting method and device based on linearly polarized light

The invention discloses a thread defect detecting method and device based on linearly polarized light. The device comprises an image sensor, a storage platform, an image acquisition card and a computer, wherein the image sensor comprises a planar array CCD camera, a manual iris prime lens, a shape-cut filter, a lens hood and a linearly polarized light source; a to-be-detected fastener with a thread is placed under the image sensor and located in the center of the storage platform; the image acquisition card is connected with the computer and the planar array CCD camera in the image sensor through tail circuits, grayscale images, acquired by the image acquisition card, of the fastener are analyzed and processed by the computer, and detection of thread lack, thread missing and thread lengthdefects of the fastener is realized by an algorithm. Image processing time is reduced, and non-contact automatic thread defect detection can be realized.
Owner:CHANGAN UNIV

Signal and data processing terminal of navigation radar

The invention discloses a signal and data processing method for a navigation radar and a signal and data processing terminal of the navigation radar with the application of the method and relates to the field of radar systems. The technical points are that the terminal receives a synchronization signal, an angle signal and an echo signal from a radar unit, the signals are converted into digital signals by an A / D sampler and the digital signals are sent to a programmable logic device FPGA, the programmable logic device FPGA processes receives echo intensity information, performs exception processing and carries out data interaction with an ARM processor with a processed signal, and the ARM processor filters the echo signal, displays the signal and controls a radar unit at the same time. Bya mode of the combination of the FPGA and the ARM, the signal and data processing of an echo is carried out effectively, the system complexity is reduced, the degree of system integration is high, thecost is low, the miniaturization of the system is achieved, the method is convenient for external field use, functions are flexible, and the control is convenient.
Owner:XIAMEN XINGKANGXIN TECH CO LTD

Schottky type standard CMOS whole differential photoelectric integration receiver

The invention belongs to the field of an optical communication system and optical interconnection, and relates to a Schottky type standard CMOS total difference opto-electronic integrated receiver, a Schottky type total difference optical detector, a total difference transimpedance preamplifier, a total difference limiting amplifier and a difference-to-single-end output buffer stage, wherein, structures, shapes, sizes and areas of two Schottky type opto-electronic detectors of the Schottky type total difference optical detector are same and the positions thereof are symmetrical; the two Schottky type opto-electronic detectors are adjacent with the smallest clearance allowed by the manufacturing technique and form a light acceptance area which is approximately a square; and two light generated currents have equal amount but different directions. The optical receiver realizes total difference characteristics of the standard CMOS difference optical receiver, can realize single chip integration and can improve the optical receiving speed and sensitivity.
Owner:南通君泰机动车检测有限公司

Power grid tide data comparison and analysis graphic display method

The invention provides a power grid tide data comparison and analysis graphic display method. The power grid tide data comparison and analysis graphic display method comprises scanning geographical wiring graphic files and performing analysis on the graphic files for data conversion to store the graphic files in a database; loading an FLEX main application through a JSP (Java Server Page) and sending a map information loading request to a server side; reading data which are successfully converted to encapsulate different types of assemblies and geographical data information and return to a web side after the server side receives the request; performing receiving and analysis on the data and parameters through the web side according to a callback function, hierarchically drawing the geographical data information through the different assembly data and loading the geographical data information through the map service and displaying the geographical data information on the web side for the comparison and analysis on the tide data. According to the power grid tide data comparison and analysis graphic display method, the remote collaborative operation and maintenance is implemented, the graphical display effect is achieved, the coupling degree of a system is reduced, the collaborative computing platform performance is fully utilized, the working efficiency is significantly improved, and the practical system functions are implemented.
Owner:STATE GRID CORP OF CHINA +2

High-temperature resisting one-chip integrated micro-sensor structure and system integrating method

High temperature resistant single scale integration microsensor structure and system integration method relates to integrated circuit technique in particular relating to single scale integration microsensor technology. It contains IC layer and microarchitecture layer, adopting refractory metal or refractory metal silicide as interconnection line. Said invention has advantages of overcoming microsensor system temp. limiting in single scale integration, raising integrated circuit space utilization ratio and reliability, realizing total system miniaturization and compatibility with existing production line.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Paste taking component and package

ActiveCN103373545ADid not increase the number of operationsFree from pollutionDispensing apparatusClosure with auxillary devicesEngineering
The invention discloses a paste taking component and a package. The paste taking component comprises a taking cover and a protective cover, the taking cover is capable of moving by clinging to paste, the taking cover is provided with a lower surface and an upper surface opposite to the lower surface, the lower surface is attached to the paste, a taking opening penetrates the upper surface and the lower surface, and the protective cover is arranged on the taking cover, is matched with the taking cover, has a first state and a second state, covers the taking opening in the first state and is jacked up by the paste to open the taking opening in the second state. The soft protective cover effectively protects the taking opening from finger and environmental pollution in the whole taking process, and the number of taking operations of a user is not increased even if opening and closing action of the protective cover is added.
Owner:彭实
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