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A high-current power detection device with closed-loop control function
ActiveCN224317696UMeet accuracy requirementsMeet stability requirementsElectrical measurement instrument detailsElectrical testingLoop controlCurrent range
This utility model relates to the field of electrical energy detection technology, and proposes a high-current electrical energy detection device with closed-loop control function. The device includes: a programmable power source module, including an output drive unit for outputting current, voltage signals, and waveforms within a large current range; a standard measurement module connected to the output drive unit for detecting the current, voltage signals, and waveform parameters output by the output drive unit; a waveform sampling module connected to the output drive unit for sampling the waveform output by the output drive unit; a closed-loop control module bidirectionally connected to the programmable power source module and the waveform sampling module for adjusting the current, voltage signals, and waveforms; and an external device detection interface connected to the output terminal of the output drive unit for connecting different types of high-current metering devices. This utility model solves the problems of measurement error superposition, unstable output, and insufficient measurement range in traditional detection devices.
Owner:SHANDONG MEASUREMENT SCI RES INST
Detachable wire reel
Owner:WUHU AISANDI ELECTRONICS TECH CO LTD
An antibacterial composite coating based on quaternized nano zinc oxide, its preparation method and application
PendingCN122076677AReduce the risk of developing drug resistancereduce manufacturing costAntifouling/underwater paintsPretreated surfacesNanoparti clesInterfacial bonding
This invention discloses a method for preparing and applying an antibacterial composite coating based on quaternized zinc oxide nanoparticles. The preparation method includes: grafting quaternary ammonium salt compounds onto the surface of zinc oxide nanoparticles to prepare synergistic antibacterial nanoparticles; modifying the substrate surface by co-deposition of dopamine and polyethyleneimine to introduce active functional groups; and spraying or dipping the quaternized zinc oxide nanoparticles onto the modified substrate surface to obtain the antibacterial composite coating. This novel antibacterial material preparation scheme can integrate the advantages of zinc oxide nanoparticles and quaternary ammonium salts, while solving key technical problems such as nanoparticle aggregation, weak interfacial bonding, and limited antibacterial efficiency. It is of great significance for promoting the upgrading of hygiene and safety in the fields of medicine, food, and building materials.
Owner:XIAN INT UNIV
A miniature direct-current brushless motor
ActiveCN224401230UReduce the risk of failureImprove reliabilityMagnetic circuit stationary partsMechanical energy handlingBrushless motorsElectric machine
The utility model relates to a kind of miniature direct-current brushless motor, including shell, and shell is equipped with accommodating cabin;With the motor rear cover and motor front cover of accommodating cabin seal connection;Stator core is equipped in accommodating cabin;With the rotor assembly matched with stator core;PCBA board is equipped in accommodating cabin;Motor rear cover is equipped with electric connection interface, electric connection interface is operatively electrically connected to PCBA board;The center of motor rear cover is equipped with the stator support shaft extending into accommodating cabin, stator core is fixedly sleeved on stator support shaft;Motor front cover is equipped with insert sealing joint part, insert sealing joint part is used to insert into gear box and form sealed connection with gear box;The output end of the motor shaft of rotor assembly extends outward through insert sealing joint part.It replaces traditional motor.The miniature direct-current brushless motor can effectively solve the problems in the prior art through innovative structural design, improve the performance, reliability and service life of motor in smart home device.
Owner:TIANJIN SNEIJDER PRECISION MACHINERY
Aerodynamic push rod type agitator in a sugar tank of a sugar spraying machine
The utility model discloses a pneumatic push rod formula agitator in sugar tank of sugar spraying machine relates to food processing equipment technical field, the utility model discloses a sugar tank body, the top of sugar tank body side is equipped with the fixed frame, the inboard of both sides of fixed frame is equipped with pneumatic push rod, the both sides of fixed frame are equipped with slide between, the telescopic axle of two pneumatic push rods is equipped with the moving block of slide cooperation with slide, the side of moving block is equipped with the stirring frame of being located in the sugar tank body and is rotated cooperation, be provided with connecting assembly between stirring frame and moving block. The utility model discloses the telescopic axle of pneumatic push rod drives moving block and moves along the slide repeatedly, and the rotation of rotating rod will be driven to the sliding of moving block to drive stirring frame and carry out the rotary motion, realizes all -round, high -efficient stirring of sugar liquid in sugar tank body, reduces the hidden danger that the iron filings and oil dirt drop in the sugar tank through the screw stirring.
Owner:GUANGXI WANT WANT FOODS CO LTD
A sampling rod device for anti-clogging dust collector
ActiveCN224286462UDistribute quicklyevenly distributedWithdrawing sample devicesGear wheelGear tooth
This utility model discloses an anti-clogging dust sampler sampling rod device, belonging to the technical field of sampling equipment. It includes a dust sampler, a connecting pipe, a first mounting plate, a second mounting plate, and a chamber. One end of the dust sampler is fixedly connected to the first side of the first mounting plate. A threaded sleeve is fixedly installed on the second side of the first mounting plate, with the first and second sides of the first mounting plate facing each other. Both ends of the connecting pipe are fixedly connected to the third side of the second mounting plate and one end of the chamber, respectively. A threaded rod is movably installed on the fourth side of the second mounting plate, with the third and fourth sides of the second mounting plate facing each other. The threaded rod and the threaded sleeve are threadedly engaged. A rotatable toothed ring is installed on the surface of the connecting pipe, and a rotatable gear is installed on the third side of the second mounting plate. The gear meshes with the toothed ring, and the gear is fixedly connected to the threaded rod via a connecting rod, so that the rotation of the toothed ring drives the threaded rod to rotate synchronously through the gear. This structure balances assembly / disassembly speed with secure connection, meeting the requirements for continuous environmental monitoring.
Owner:HUADIAN LAIZHOU POWER GENERATION
Supporting device for shield connection passage construction and installation method thereof
ActiveCN115749620BGuaranteed support effectavoid wastingSurveyMining devicesArchitectural engineeringStructural engineering
The present application relates to a kind of support device for shield liaison passage construction and its installation method, support device at least includes: several support main shafts;Support main shaft defines the plane and the axial vertical intersection of shield tunnel, and the adjacent end of support main shaft is connected by support bar, to build complete support frame.The present application is combined with the sliding platform of drilling device by support, and support is not removed after the installation of frozen hole is completed, support bar and support main shaft constitute wedge area, and by setting the mode of multiple groups of support main shaft, the support force of wedge area is guaranteed, to effectively control the time and economic cost of freezing method construction, avoid unnecessary resource waste caused by excessively conservative support design, avoid time and resource waste under the premise of same guaranteeing liaison passage safe construction, give consideration to safety and economy.
Owner:北京住总集团有限责任公司
A multi-bus data fusion processing method and system based on a logging instrument
This invention relates to a multi-bus data fusion processing method and system based on a logging tool, belonging to the field of oil and gas drilling measurement data transmission technology. The method includes receiving logging data collected by the logging tool's measurement probe and different data packets sent by the system bus; performing preliminary processing on the received logging data, including self-identification, self-diagnosis, and self-correction; identifying and converting the different received data packets; performing real-time fusion processing on the self-identified, self-diagnosed, and self-corrected logging data and the identified and converted data packets; and packaging the real-time fused data according to different communication protocols, and sending the packaged data to the system bus and / or storage unit. This invention forms a multi-bus data fusion processing system, which is embedded in the logging tool connected to the drilling string, enabling data interaction between the logging tool and other instruments in the instrument string, and achieving parallel processing and self-diagnosis of multiple sets of data.
Owner:CHINA NAT PETROLEUM CORP +1
An electrochemical immunosensor for high-sensitivity detection of folic acid and a preparation method and application thereof
ActiveCN120507418BHighly selective detection performancegood choiceAntiendomysial antibodiesCombinatorial chemistry
The application belongs to the technical field of electrochemical sensors, and particularly relates to an electrochemical immunosensor for high-sensitivity detection of folic acid as well as a preparation method and application thereof. The application introduces FBP as a specific recognition element into a folic acid detection system for the first time. Compared with a traditional immunosensor based on an antibody, the system innovatively utilizes high affinity and specific binding characteristics between FBP and folic acid, constructs a sensing interface with dual functions of molecular recognition and electrochemical signal conversion by modifying FBP on the surface of an AuNFs / SNC electrode. Experimental results show that the sensor presents excellent response characteristics for FA in a linear range of 1-100 nM, and the detection limit is as low as 0.33 nM (S / N=3).
Owner:CHINA AGRI UNIV
Quick-shift clutch
The utility model belongs to the field of engineering machinery relates to a quick switching clutch, including push rod, transmission shaft, second transmission device and radial slider, wherein, the second transmission device rotationally covers transmission shaft, and is equipped with the second radial hole on transmission shaft, is equipped with the first radial hole with second radial hole intercommunication on the second transmission device, is equipped with the axial hole on transmission shaft, push rod axial sliding installation is in the axial hole, radial slider sliding arrangement is in the second radial hole and first radial hole. The utility model drives radial slider to move fast between transmission shaft and second transmission device through the axial movement of push rod, realizes the instantaneous combination and the separation of both, breaks through the limitation of traditional clutch, can realize the on -line quick clutch, and further promotes the efficiency and the convenience of water mill drill manual gear and automatic gear switching.
Owner:CHONGQING HUASUI INTELLIGENT EQUIPMENT CO LTD
Electrically powered flip cover damper
ActiveCN224387356UReduce the risk of failureImprove reliabilityBathroom coversElectric machineGear wheel
The utility model relates to an electric flip damper, motor assembly contains the casing of containing cabin, sealed connection rear end's motor rear cover and front end's motor front cover, and the motor front cover is equipped with the plug-in sealing joint part of extending to the front, and the stator core, rotor assembly and PCBA board are equipped in containing cabin, and the motor shaft of rotor assembly extends through plug-in sealing joint part, gear box connects motor front cover, and plug-in sealing joint part inserts gear box inner wall and forms sealed connection, and at least one planetary reduction mechanism is equipped in gear box, and its output end is connected output shaft, and the drive gear of motor shaft extension end fixation is located in gear box, and directly engages the input element of driving planetary reduction mechanism, the advantages are: plug-in sealing structure blocks the invasion of water vapor / dust, improves the reliability of severe environment, cancels the traditional flange connection, simplifies the assembly process, and reduces the processing / maintenance cost.
Owner:TIANJIN SNEIJDER PRECISION MACHINERY
An auto-focusing portable infrared spectrometer
ActiveCN224398809UHigh precisionPowerfulRadiation pyrometrySpectrum investigationBall bearingGear wheel
The utility model discloses a portable infrared spectrometer of automatic focusing belongs to portable infrared spectrometer field, including the spectrograph body, motor support, identification screen, magnetic attraction base, positioning clamping slot, the inside installation of spectrograph body has focusing mechanism, focusing mechanism includes drive motor, ball screw, planetary gear set, bearing seat, deep groove ball bearing, sliding block, guide rail seat, linear guide rail, limit switch, and one end of drive motor is connected with ball screw, and the outside of ball screw is installed planetary gear set, bearing seat and sliding block from left to right in proper order, and bearing seat is set up with through -hole, and deep groove ball bearing is installed in through -hole, and bearing seat is connected with ball screw through deep groove ball bearing, and the both sides symmetrical installation of ball screw has guide rail seat, and the top of guide rail seat is connected with linear guide rail, and the both sides installation of linear guide rail has limit switch, and through above -mentioned each device between the cooperation use, makes the focusing process more smooth.
Owner:ANHUI YUANDIAN TECH CO LTD
Preparation method and application of collagen packaging film
The application discloses a preparation method and application of a collagen packaging film, and belongs to the technical field of bio-based food packaging materials. According to the method, animal-derived collagen is dissolved in an acetic acid solution with a pH of 3.5-4.5 to form a solution with a concentration of 3-5%, and then 15-25% of genipin and 8-12% of cellulose nanowhiskers by dry weight of the collagen are added in sequence to perform a cross-linking reaction at 35-40 DEG C, so as to construct a three-dimensional network structure. Subsequently, the solution is soaked in 70-80% ethanol containing 0.5-1.5% propyl gallate, and the surface hydrophobicity is improved through the specific combination of phenolic hydroxyl groups and the hydrophobic region of collagen. Finally, vacuum drying and 60-70% humidity environment balancing treatment are performed, so that the degradable film material with high mechanical strength and moderate waterproofness is obtained. The preparation method is especially suitable for the preservation packaging of chilled meat products, and can effectively prolong the shelf life of food while maintaining the biodegradability of the material.
Owner:ZHENGXIANG BAIQI MENGSHENG MEAT CO LTD
A detachable coating hanger positioning pin structure
ActiveCN224389209Ustable disassemblyEasy to fixLiquid surface applicatorsCoatingsProduction lineFixed frame
The utility model discloses a detachable coating hanger positioning pin structure relates to coating technical field. This detachable coating hanger positioning pin structure, including mounting bracket, is provided with positioning pin mechanism and reinforcing mechanism under mounting bracket, positioning pin mechanism includes the positioning pin, the fixed frame is fixedly arranged on mounting bracket bottom surface, and the outer wall of fixed frame is connected with the inside slide of positioning pin, and the technical effect is that positioning pin mechanism realizes accurate orientation and primary positioning through the slide of fixed frame and the inside of positioning pin, and the reliable mechanical connection is formed to the quick and accurate slide of drive plug -in block into the slot in cooperation extrusion spring and extrusion damper, which realizes the quick installation and dismounting of positioning pin, overcomes the complex problem of traditional positioning pin installation and dismounting, guarantees coating production line efficient operation, and can also push the plug -in block firmly into the slot by the thrust of extrusion spring initial extension state, ensures that positioning pin is stably fixed under mounting bracket.
Owner:CHANGSHA GACC-TONG YANG AUTOMOBILE COMPONENT CO LTD
A greenhouse frame structure based on modular design
PendingCN122074323Aenable connectivityFully adapt to layout needsClimate change adaptationGreenhouse cultivationGreenhouseClassical mechanics
This invention discloses a greenhouse frame structure based on modular design, relating to the field of greenhouse technology. It includes a frame body adapted to the shape of the greenhouse, comprising multiple frame support rods; each pair of the frame support rods is connected via a docking module; each docking module includes two fixing sleeves; corresponding positioning sleeves are fitted inside the fixing sleeves; the positioning sleeves are fitted onto the frame support rods; mounting holes are provided on the frame support rods; the positioning sleeves are connected to the mounting holes via connecting bolts; a bearing seat is fixed to the end of each fixing sleeve; the bearing seats of the two fixing sleeves are rotatably connected via a rotating shaft; the axis of the rotating shaft is perpendicular to the axis of the frame support rod; a support base is also fixed to the outer wall of the fixing sleeve; a self-locking telescopic rod is provided between the support bases of the two fixing sleeves. The advantages of this invention are: it is easy to assemble, reducing assembly difficulty, has strong versatility, and is easy to maintain and replace.
Owner:ZHONGNONG JINWANG (BEIJING) AGRI ENG TECH CO LTD
Detachable anchoring structure and corresponding overhanging scaffold
ActiveCN224314564UFlexible and easy to installFlexible and easy to disassembleScaffold accessoriesBuilding support scaffoldsFloor slabClassical mechanics
This utility model provides a detachable anchoring structure and a corresponding cantilever scaffold, with a bottom steel plate embedded inside the structural floor slab. Strips are embedded inside the structural floor slab, arranged circumferentially along the bottom steel plate. One side of the strip connects to the bottom steel plate, and the other side connects to the structural floor slab. One end of a bolt rod is located inside the structural floor slab and connected to the bottom steel plate, while the other end protrudes from the structural floor slab. A sleeve is fitted onto the bolt rod, with one end located inside the structural floor slab and connected to the bottom steel plate. The other end of the sleeve protrudes from the structural floor slab. An I-beam is connected to the upper end of the structural floor slab, and a long timber is connected to the upper end of the I-beam. A pressure plate is located at the upper end of the sleeve, and the pressure plate has a through hole, through which it is fitted onto the bolt rod. A nut is detachably connected to the bolt rod via threads, and the nut can cooperate with the long timber to limit the pressure plate in the vertical direction.
Owner:JIANGXI CONSTR ENG (GRP) CO LTD
A portable levelling device
PendingCN122281168AThe quantity can be flexibly increased or decreasedSatisfy levelMechanical engineeringElectrical and Electronics engineering
Owner:SHUNYI TECHNOLOGY (SHANDONG) CO LTD