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207results about How to "Avoid occlusion" patented technology

Battery cell and processing device

ActiveCN121985600Aprevent protrudingavoid crackingElectrical batteryBusbar
A battery unit and processing equipment relate to the field of batteries, the battery unit comprises a plurality of back contact battery strings and a confluence assembly, the plurality of back contact battery strings are arranged in a first direction, each back contact battery string is provided with a battery piece and a solder strip extending along the first direction, the solder strip is provided with a main body section and a connecting section, the main body section is arranged on the battery piece, and the connecting section is arranged on the main body section. The connection section is connected with the main body section, the confluence assembly comprises a first confluence assembly and a second confluence assembly, the first confluence assembly is connected with the two adjacent back contact battery strings, and in the thickness direction of the battery unit, the connection sections of the two adjacent back contact battery strings are connected to the top surface of the first confluence assembly, and the second confluence assembly is connected with the top surface of the second confluence assembly. The battery pieces are all located on the bottom face of the first confluence assembly, the second confluence assembly is connected with the back contact battery string located on the edge, and the projection of the second confluence assembly in the thickness direction of the battery unit is located in the range of the battery pieces. According to the technical scheme, the yield of the battery is ensured.
Owner:DAS SOLAR CO LTD

Cursor display method and device, equipment, medium and program product

The invention discloses a cursor display method and device, equipment, a medium and a program product, and belongs to the technical field of computers. The method comprises the following steps: displaying a first page, wherein the first page comprises an input box control; in response to the condition that the input box control receives a content input operation and the position of an input cursor corresponding to the content input operation is shielded by an input toolbar superposed on the first page, automatically scrolling the first page; and displaying a cursor located at the cursor position after the input on the screen position not shielded by the input toolbar, the input toolbar being used for providing at least one auxiliary input function. According to the method, the cursor in the input box control can be prevented from being shielded by the input toolbar after the content is input, and the operation that a user manually rolls the first page to move the cursor to a visual area is reduced.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Modularized pelvis fixator

The utility model discloses a modularized pelvis fixator, relates to the technical field of medical instruments, and solves the problem that secondary injury is caused to a patient due to the fact that a connecting rod and a bone traction needle possibly interfere with each other when the number of operation parts is too large in the prior art. The main mounting seat is arranged on the outer trapezoidal supporting frame and used for mounting and locking the connecting rod, more straight line sections can be conveniently connected with the locking block through the outer trapezoidal supporting frame, meanwhile, the trapezoidal structure avoids shielding of an operation space in an operation, and better applicability is achieved; the outer trapezoid supporting frame has the advantages that the fixing rod scheme combination is more visual and convenient, meanwhile, the straight line section and the locking block can be connected more stably, the problem of unstable connection of the arc section is avoided, the inner rectangular supporting frame is adopted on the inner side, the inner operable space is larger, and operation in the operation is facilitated.
Owner:HARBIN JINGKEQI TECH

Bathroom mirror cabinet convenient to store

The bathroom mirror cabinet convenient to store comprises a cabinet shell, a mirror is fixedly connected to the front end of the cabinet shell, demisting assemblies are arranged at the positions, located at the upper end and the lower end of the mirror, of the front end of the cabinet shell, an insertion opening is formed in one side of the cabinet shell, a storage cabinet is arranged on the insertion opening, and a fixing assembly is arranged at the bottom end of the cabinet shell. A plurality of supporting plates are fixedly connected to the interior of the storage cabinet, and drainage assemblies are arranged on the supporting plates. According to the mirror cabinet, mist generated on the surface of the mirror is removed through the demisting assembly, the situation that the mirror cannot be used due to mist shielding is avoided, the storage cabinet drawn out of the cabinet shell is fixed through the fixing assembly, the storage cabinet is prevented from sliding, and due to the design, a user does not need to frequently open and close the mirror cabinet when needing to frequently take articles in the storage cabinet.
Owner:ZHEJIANG SUMMERSIDE SANITARY WARE TECH CO LTD

Battery pack and powered device

ActiveCN224318647Uimprove securityImprove the problem of easy blocking of explosion-proof valvesCell component detailsSecondary cells servicing/maintenanceElectrical batteryBusbar
The application relates to a battery pack and a power consumption device, and relates to the technical field of batteries.The battery pack comprises a box body, a battery cell group, a support, busbars and a collection plate, the battery cell group is arranged in the box body, the battery cell group comprises a first side and a second side, the first side and the second side are not coplanar, and the first side is provided with an explosion-proof valve; the support comprises a mounting frame and a mounting plate, the mounting frame is arranged on the first side, the mounting frame is arranged in a staggered mode with the explosion-proof valve, the mounting plate is connected to a side of the mounting frame away from the explosion-proof valve, and the mounting plate is bent relative to the mounting frame to cover the second side; a plurality of busbars are arranged in the mounting frame, and the plurality of busbars are connected to the first side; the collection plate is arranged on a side of the mounting plate away from the second side, and the collection plate is electrically connected to the plurality of busbars. The battery pack and the power consumption device can improve the problem that the collection plate easily blocks the explosion-proof valve, and improve the safety performance of the battery pack.
Owner:HU ZHOU YAO NING GU TAI DIAN CHI YAN JIU YUAN YOU XIAN GONG SI

Greenhouse structure suitable for Pien Tze Huang grass cultivation

The utility model discloses a greenhouse structure suitable for Pien Tze Huang grass cultivation, and relates to the technical field of agricultural planting facilities. The greenhouse structure comprises two supporting assemblies which are symmetrically arranged, a plurality of illumination assemblies located between the two supporting assemblies and a driving assembly. The supporting assembly is composed of an arc-shaped supporting frame, a stand column, a cross beam and a stabilizing rod and provides stable supporting. The illumination assembly comprises a transparent hollow pipe body, a non-transparent partition plate and a rotating shaft, the partition plate divides the pipe body into a first lamp chamber and a second lamp chamber, and different types of functional lamps are arranged in the lamp chamber. The rotating shaft is rotationally connected with the cross beam; all the pipe bodies are transversely arranged in parallel. The driving assembly comprises a driving gear, a transmission gear set and a motor, and the motor drives the rotating shaft to drive all the pipe bodies to rotate synchronously. Through the cooperation of the illumination assembly and the driving assembly, the illumination type and angle can be flexibly adjusted, the utilization efficiency of illumination resources is improved, it is ensured that the Pien Tze Huang grass can obtain proper illumination in all growth stages, and the planting efficiency and quality are improved.
Owner:FUJIAN SHENGGUANDA AGRICULTURAL DEVELOPMENT CO LTD

Spraying device for unmanned aerial vehicle wing production and processing

The invention relates to the technical field of spraying processing, in particular to an unmanned aerial vehicle wing production and processing spraying device which comprises a processing box, a partition baffle, a spraying mechanism and a purifier and further comprises a self-processing assembly. The self-machining assembly comprises spraying placing plates, a transfer channel, a supporting base, a closing component, a station conversion component and a drying component, the two spraying placing plates are fixedly installed in the spraying machining area, the transfer channel is fixedly installed at the bottom of the machining box, the supporting base is fixedly installed at the bottom of the transfer channel, and the closing component is connected with the machining box; the station conversion component is connected with the supporting base, the drying component is installed in a drying area of the machining box, the overall machining efficiency of a large batch of wings can be guaranteed while the spraying quality of the two sides of the wings is guaranteed through the arranged components, and the overall machining effect is better in the actual machining process.
Owner:CHONGQING YOUMENGXIN METAL TECH CO LTD

A kind of blade surface defect detection device for unmanned aerial vehicle

PendingCN122130698ARealize automated flippingno manual operation
This invention relates to the field of blade inspection technology, and more particularly to a blade surface defect inspection device for unmanned aerial vehicles (UAVs). The device includes an inspection machine, a placement plate fixedly mounted on the inner bottom surface of the inspection machine, and a shooting and inspection mechanism disposed on the inner top surface of the inspection machine. A placement concave surface is formed in the middle of the upper surface of the placement plate. Side openings are formed on both sides of the upper surface of the placement plate near the placement concave surface, and a front opening is formed on the upper surface of the placement plate near the front of the placement concave surface. Concave surfaces are formed on the sides of the two side openings that are far apart from each other. This invention enables automated blade flipping without manual intervention, effectively improving inspection efficiency and reducing labor intensity. The unobstructed structure of the inspection optical path avoids affecting the telecentric lens imaging, ensuring inspection accuracy. Simultaneously, it avoids blade surface contamination and secondary damage caused by manual flipping, improving inspection quality and product yield.
Owner:FUJIAN MINNAN AVIATION TECH CO LTD

Remote control antenna assembly and working machine

The utility model relates to the technical field of operation machinery, and discloses a remote control antenna assembly and operation machinery, the operation machinery comprises a vehicle body and an arm support arranged on the vehicle body, the remote control antenna assembly comprises an arm support remote control antenna and a receiver arranged on the vehicle body, the arm support remote control antenna comprises an antenna radiator, a detection module and a transmit-receive front end module, the receiver and the arm support remote control antenna are connected through a cable, the arm support remote control antenna is installed on an arm support, the antenna radiator is used for receiving and radiating radio frequency signals, the signal processing part is electrically connected with the antenna radiator and the receiver, and the signal processing part is used for detecting and processing the radio frequency signals transmitted by the antenna radiator. And the receiver is used for receiving the processed signal and carrying out signal conversion so as to realize information interaction. According to the boom remote control antenna, the boom remote control antenna is arranged on the boom, the antenna radiator can be effectively prevented from being shielded, signals can be received more stably, and the remote communication requirement of a remote controller transmitter is met.
Owner:HUNAN ZOOMLION INTELLIGENT TECH

A detection system and a control method thereof

The application provides a detection system and a control method thereof, and relates to the technical field of semiconductor detection. The detection system comprises an illumination module and an imaging module arranged in sequence. A product to be detected is arranged between the illumination module and the imaging module. The illumination module and the imaging module respectively comprise a first time sequence diaphragm and a second time sequence diaphragm arranged in rotation. The first time sequence diaphragm is used for obliquely irradiating the product to be detected with illumination light generated by the illumination module. The second time sequence diaphragm is used for filtering or weakening low-frequency diffraction light from the product to be detected and retaining high-frequency diffraction light. The first time sequence diaphragm and the second time sequence diaphragm are synchronously arranged in time sequence, so that the illumination light incident on the product to be detected and the diffraction light from the product to be detected to the imaging module cross at an optical axis. The high-frequency diffraction light is prevented from being shielded while the 0th-order diffraction light is filtered. The final image is formed by fitting different images with reduced 0th-order diffraction light, the imaging effect is improved, the contrast of the system is improved, and high-pass filtering is realized.
Owner:SHUNYI TECHNOLOGY (SHANDONG) CO LTD

Weak electric security infrared induction monitoring alarm device

The utility model discloses a kind of weak current security infrared induction monitoring alarm device, it is related to weak current security technical field, including fixed casing, adjusting mechanism is installed in the inside of fixed casing, transparent cover is installed at the bottom of fixed casing, cleaning mechanism is installed at the outside of transparent cover, cleaning mechanism includes cleaning plate, the inside of two cleaning plates is overlapped at the outer surface of transparent cover, in the utility model, by first motor work, drive and be connected with the rotation of rotating rod, the outside of rotating rod is fixed with the mutual meshing of two first gear, another rotating rod can be driven to rotate, to drive connecting block and cleaning plate movement, two cleaning plates are respectively moved to two sides at the outside of transparent cover, to clean the outer surface of transparent cover, prevent dust from causing influence to the work of infrared ray, prevent the shielding of monitoring light simultaneously, improve infrared induction and monitoring effect.
Owner:ANHUI XINKAIXIANG TECHNOLOGY CO LTD

Workpiece rotating positioning device of vacuum coating machine

The utility model discloses a kind of vacuum coating machine workpiece rotation positioning devices, including rotating lever and the disc of fixed in the outer wall of rotating lever, the upper surface of the disc is provided with several groups of base that can autorotate, the top of the base is provided with the expansion body that can be inserted into workpiece, the lower of the disc is provided with bottom plate, the lower of the bottom plate is provided with lifting structure that drives bottom plate lift, the top of the bottom plate is provided with expansion structure that can drive expansion body expansion, the outer wall of the rotating lever is provided with rotating structure that drives base rotation;The setting of the utility model expansion structure, so that only one lifting drive operation is needed, all jack can be driven to insert inside corresponding expansion body simultaneously, jack is synchronous to open all expansion body's arc plate in ascending process, to complete the internal expansion positioning of all workpiece on expansion body in one time. Compared with the conventional workpiece fixed mode one by one, can shorten clamping time.
Owner:SICHUAN JUNAN YINGCHUANG TECH CO LTD

A photolithography mask holder and jbx photolithography machine

This utility model discloses a photomask fixture for a lithography machine and a JBX lithography machine. The photomask fixture includes a fixture body, two edge conductive pins, and a central conductive pin. The two edge conductive pins are spaced apart at both ends of a horizontal clamping edge of the fixture body. Two edge cover plates cover the two edge conductive pins respectively. Each edge cover plate includes a recessed portion located on the lateral edge of the edge cover plate near the photomask and recessed away from the photomask until it is flush with the lateral edge of the corresponding edge conductive pin. A central cover plate covers the central conductive pin. The lateral edge of the central cover plate near the photomask is flush with the lateral clamping edge of the fixture body. The central cover plate includes an extension portion extending from the lateral edge of the central cover plate toward the photomask, with the lateral edge of the extension portion flush with the edge of the central conductive pin. This utility model, by modifying the shape of the cover plate and reducing its area, reduces the coverage area of ​​the cover plate, effectively maintaining the integrity of the electrostatic lines of the photomask.
Owner:NEW RAY MASK TECHNOLOGY CORP

Top air outlet type air conditioner outdoor unit

The utility model discloses a top air outlet type air conditioner outdoor unit which comprises a machine shell comprising a base plate formed by splicing a first bottom plate and a second bottom plate. The outdoor heat exchanger is arranged on the base plate and defines a heat exchange space, and a notch is formed in the side wall of the outdoor heat exchanger and comprises a first notch section and a second notch section. The compressor is arranged in the heat exchange space, is arranged on the first bottom plate and is close to the first notch section; the gas-liquid separator is arranged on the second bottom plate and is close to the first bottom plate; the oil separator is arranged on the first bottom plate and located on the side, away from the first notch section, of the compressor. The stop valve is close to the first notch section relative to the gas-liquid separator, and the projection of the stop valve on the chassis is located on the second bottom plate; and the four-way valve is arranged on the side, away from the first notch section, of the stop valve, the height of the four-way valve is between the height of the stop valve and the height of the gas-liquid separator, reasonable layout of all parts of the outdoor unit in a limited space is achieved, and manufacturability and maintainability are both considered while the space utilization rate is increased.
Owner:QINGDAO HISENSE BOSCH AIR CONDITIONING SYSTEM CO LTD

Three-dimensional dynamic optical detection module for gem cutting and polishing process

ActiveCN224416734Ugood polarization propertiesavoid damageErbium lasersMechanical engineering
The utility model relates to gem processing detection technical field more specifically, relate to a gem cutting and grinding process three -dimensional dynamic optical detection module, including mounting bracket, the mounting bracket includes upper roof, left side board, lower bottom plate and right side board, the upper roof, left side board, lower bottom plate and right side board combine and form the rectangular structure, wherein the middle part of upper roof is provided with fixed hole, the middle part of lower bottom plate is open, the right side and left side of lower bottom plate are provided with first off -axis parabolic mirror and second off -axis parabolic mirror respectively, the upside of first off -axis parabolic mirror and second off -axis parabolic mirror is provided with semiconductor laser and acquisition camera respectively. First off -axis parabolic mirror focuses laser to gem surface, second off -axis parabolic mirror captures the laser signal of gem surface reflection, and reflects it to acquisition camera, realizes the dynamic focusing of curved surface gem detection without aberration, and this detection mode adopts non -contact detection, avoids the damage of gem surface.
Owner:GUANGZHOU CITY UNIV OF TECH

Suction device and suction system

This utility model discloses a material suction device and a material suction system. The material suction device includes a suction pipe and a support frame. The suction pipe has a suction port and a discharge port at its two ends, respectively. The support frame is disposed on the outer wall of the suction pipe and surrounds the perimeter of the suction port. The support frame is used to open the bag opening of the material bag and form a suction space communicating with the suction port at the bag opening. At least one arc-shaped chamfer is provided at the end of the support frame away from the discharge port. A first guide slope is also provided at the end of the support frame away from the discharge port. The support frame includes a first connecting surface and a second connecting surface arranged opposite each other along the radial direction of the suction pipe. The first guide slope is connected to the first connecting surface and / or the second connecting surface by an arc-shaped chamfer. The first guide slope is inclined towards the central axis of the suction pipe from the discharge port to the suction port, thereby preventing the support frame from obstructing the suction port and improving the material conveying effect and efficiency.
Owner:SHENZHEN SHANGSHUI INTELLIGENT CO LTD

A multi-layer spreading and airing device for white tea withering

The utility model discloses a kind of white tea withering calls multi-layer spreading and airing device, belong to tea processing technical field, a kind of white tea withering calls multi-layer spreading and airing device, including base and the self-locking universal wheel of symmetry installation in the bottom of the base, the top of the base is fixedly connected with frame by support, the inside lateral symmetry of the frame is fixedly connected with support frame, and the support frame is longitudinally equidistant and is provided with multiple groups, guiding hole is opened in the support frame, drying frame is installed in the top of the support frame, the inside of the drying frame is fixedly connected with support screen, it will multiple drying frame from the inside of frame from different directions pull out, then white tea is laid on the support screen of each drying frame, and the device is moved to sunlight by the self-locking universal wheel of base bottom to white tea is dried, can effectively prevent upper and lower layers between shading sunlight, can make the tea on multilayer drying frame can be fully dried.
Owner:YUCAO JINMING (FUJIAN) TEA CO LTD

Chassis layout structure of hydrogen fuel cell dump truck and hydrogen fuel cell dump truck

This application provides a hydrogen fuel cell dump truck chassis layout structure and a hydrogen fuel cell dump truck, relating to the technical field of hydrogen fuel cell dump trucks. The hydrogen fuel cell dump truck chassis layout structure provided by this application includes a frame, a hydrogen stack, a thermal management unit, a radiator, a high-voltage distribution box, and a multi-functional controller. The frame has a first axle, a second axle, and a third axle arranged sequentially along a first direction. The radiator, thermal management unit, and hydrogen stack are sequentially arranged on the frame below the dump truck's cab along the first direction to dissipate heat from the hydrogen stack. The thermal management unit integrates cab air conditioning and battery cooling functions. The high-voltage distribution box and multi-functional controller are located on the frame, between the second and third axles, and are electrically connected to the hydrogen stack. This application provides a hydrogen fuel cell dump truck chassis layout structure and a hydrogen fuel cell dump truck, which are convenient to maintain and have high safety.
Owner:SANY SPECIAL PURPOSE VEHICLE CO LTD

A fog-proof and heat-insulated trocar for thoracoscopic surgery

This invention discloses an anti-fog and heat-insulating puncture device for thoracoscopic surgery, belonging to the field of medical device technology. Its key technical features include: an outer sheath, with a puncture assembly on its inner wall, the puncture assembly including a puncture needle core that slides through the inner wall of the outer sheath, a needle core handle fixedly connected to the upper end of the puncture needle core, a needle tip fixedly connected to the lower end of the puncture needle core, an outer sheath seat fixedly connected to the upper outer wall of the outer sheath, a fixing handle fixedly connected to the outer wall of the outer sheath seat, and a sealing assembly on the outer wall of the outer sheath seat. This invention achieves heat insulation through a double-layer structure formed by the outer and inner sheaths; gas circulation is formed through the cooperation of the air inlet and outlet holes, effectively expelling fog from the inner wall of the inner sheath and ensuring a clear surgical field; the sealing valve and sealing sleeve achieve internal sealing of the outer sheath to prevent gas leakage; the sealing ring is precisely positioned by positioning pins and positioning holes, and the sealing cap is stably installed by locking blocks and protruding pins, providing double sealing to prevent gas leakage and impurity entry, reducing the risk of infection.
Owner:唐月璞

Numerical control turning device for bolts

The utility model relates to the technical field of lathe machining, and provides a bolt numerical control turning machining device which comprises a workbench, a groove body is formed in the top of the workbench, the top of the workbench is connected with a movable seat in a sliding mode, the inner side of the movable seat is connected with a rotating shaft in a rotating mode, and the rotating shaft is connected with the groove body in a sliding mode. A movable motor is fixedly installed at the top of the working table, a threaded rod is fixedly connected to the movable motor through an output shaft of the movable motor, and a waste hopper is fixedly connected to the interior of the groove body. Therefore, when a moving motor and a cutting motor are started to enable a cutter to rotate and move for cutting work, water in a water tank is sucked by a water suction pipe through cooperation of a rack, a rotating rod, a driving gear, a pressure bin and other assemblies, the water is conveyed into a flow dividing box through a water conveying pipe, and finally the water is sprayed out through a spray head to carry out dust falling on a lower cutting area. Scraps are prevented from flying and blocking the sight of operators.
Owner:HANDAN YONGNIAN DISTRICT JINGXIN FASTENERS CO LTD

An intelligent environment perception and video risk early warning system and method for a vehicle-mounted display screen

The present application belongs to the field of intelligent transportation and vehicle-mounted electronic technology, and specifically relates to an intelligent environment perception and video risk early warning system and method for a vehicle-mounted display screen, comprising an environment perception module, a space-time reference generation module, a multi-modal data fusion module, a risk decision engine module, a video frame synchronization processing module and a display rendering module. Through a unified space-time reference framework and motion extrapolation correction mechanism, position lag or jump of risk warning signs in high-speed driving scenarios is avoided; multi-modal cross-scale feature fusion and a double-path risk decision architecture are utilized to maintain the semantic integrity of risk identification in complex urban traffic environments; and precise binding of structured metadata and video frames is achieved, ensuring that visual elements and real-world targets are strictly aligned in geometric projection.
Owner:SHENZHEN HUACHUANGJIE TECH CO LTD

In-situ CT analysis device for real-time observation of soldering tin melting process

The utility model discloses an in-situ CT (Computed Tomography) analysis device for real-time observation of a soldering tin melting process. The in-situ CT analysis device comprises a heating box, an X-ray receiving device arranged above the heating box and an X-ray emitting device arranged below the heating box, the heating box comprises a mounting box body; a first mounting groove is formed in the top of the mounting box body, and a product clamping mechanism is further mounted in the first mounting groove; and the product clamping mechanism comprises two clamping rods. Based on the X-ray detection principle, the internal structure change in the soldering tin melting process can be observed in real time, the hysteresis and destructive problems of a traditional method are solved, the annular infrared heating pipe is adopted, it can be ensured that a soldering tin sample is evenly heated, temperature change in the real welding environment is simulated, meanwhile, shielding of ray imaging is avoided, and the welding quality is improved. And the resolution and the precision of CT scanning are improved.
Owner:SHENZHEN ZHUO MAO TECH

A sunshade device and vehicle

This application relates to the field of vehicle technology and discloses a sunshade device and a vehicle. The sunshade device provided by this application includes: a sunshade curtain, which includes a curtain body and a connecting component. One end of the curtain body is connected to the connecting component, and the connecting component is used to connect to the vehicle; a drive mechanism, which is used to drive the curtain body to move so that the curtain body switches between an unfolded state and a retracted state; and a locking mechanism, which includes a first limiting member and a second limiting member. The first limiting member is disposed at the end of the curtain body away from the connecting component, and the second limiting member is disposed on the connecting component. Thus, when the vehicle is parked outdoors, the curtain body can switch to an unfolded state and block the windshield to prevent sunlight from directly entering the vehicle through the windshield. When the vehicle is in motion, the curtain body can switch to a retracted state and be locked by the locking mechanism to prevent the curtain body from shaking.
Owner:AVATR CO LTD

Back contact battery, preparation method thereof and photovoltaic module

The invention discloses a back contact battery and a preparation method thereof, and a photovoltaic module. The back contact battery comprises a battery body, wherein the battery body is provided with a first surface and a second surface which are oppositely arranged; the first current collection electrodes and the second current collection electrodes are arranged on the first surface, the first current collection electrodes and the second current collection electrodes are alternately arranged at intervals in the first direction and extend in the second direction, first insulation parts are arranged on the first current collection electrodes, and second insulation parts are arranged on the second current collection electrodes; the first insulating part and the second insulating part are arranged at an interval in the second direction; the first connecting conductor is arranged on the second insulating part, extends along the first direction and is electrically connected with the plurality of first collector electrodes; the first electric connection part is arranged between the first insulation part and the second insulation part and is electrically connected with the first collector electrode. By adopting the electrode structure, the design of the opening structure in the screen printing plate is facilitated, the processing steps can be simplified, and the preparation efficiency of the electrode is improved.
Owner:LONGI PHOTOVOLTAIC TECHNOLOGY (JIAXING) CO LTD

A general gas pipeline leakage point positioning method along the cross-sectional circumference

ActiveCN118463042Bavoid occlusionThe experimental results are accurateCluster algorithmAlgorithm
The application relates to a general gas pipeline leakage point positioning method along a cross-section circumference, which comprises the following steps: dividing the pipeline cross-section into multiple quadrants, obtaining an acoustic wave signal, respectively calculating the incident angle of the signal by using beam forming and instantaneous windowing MUSIC, introducing a signal-to-noise ratio estimation value, and performing nonlinear weighting to roughly determine the quadrant where the leakage point is located; based on a K-means clustering algorithm, the quadrant corresponding to the leakage point is divided into multiple subspaces; based on a generalized quadratic cross-correlation algorithm, noise resistance and time delay estimation are performed, the subspaces are searched, and the search area is reduced; based on a band-pass filter, the acoustic wave signal in the search area is filtered and processed; and for the filtered acoustic wave signal, beam forming based on an SP-ISM algorithm is used to accurately position the leakage point. Compared with the prior art, the application has the advantages of effectively avoiding the shielding of the pipeline itself to the acoustic wave, high time delay estimation accuracy, accurate positioning and the like.
Owner:SHANGHAI DIANJI UNIV

Greenhouse environment mobile acquisition device

The utility model relates to the technical field of greenhouses, and provides a greenhouse environment mobile acquisition device which comprises an environment acquisition device. The track is arranged at the top of the greenhouse in the first direction, a plurality of collection point positions are arranged on the track at intervals, and each collection point position is provided with a position detection component; the transmission part is movably arranged on the track, is connected with the environment acquisition device and is used for driving the environment acquisition device to move on the track in the first direction and staying at each acquisition point position to complete environment information acquisition; the driving device is in transmission connection with the transmission part and used for driving the transmission part to move in the first direction; the controller is electrically connected with the driving device and used for controlling starting and stopping of the driving device; according to the utility model, greenhouse space utilization is optimized, dynamic coverage is realized with less equipment, data is closer to actual environment distribution, and greenhouses with different areas can be flexibly adapted.
Owner:BEIJING NANJIAO AGRI PRODUCE JINGYING MANAGE CENT

A support frame for 3D laser scanner measurement

ActiveCN224284153UExpanded vertical field of viewBlock the scanning field of viewStands/trestlesBlind zoneSupport plane
A support frame for 3D laser scanner measurement includes: a base, fixed legs, a fixed pan / tilt head, a first height fine-tuning unit, and a second height fine-tuning unit. The 3D laser scanner is mounted on top of the base, and the fixed legs are pivotally connected to the bottom of the base. The fixed legs are positioned on the ground. The fixed pan / tilt head is positioned between the base and the 3D laser scanner. The first height fine-tuning unit is located below the fixed pan / tilt head, extending from the top to the bottom of the base. The second height fine-tuning unit is located inside the first height fine-tuning unit, extending from the top of the fixed pan / tilt head to the bottom of the first height fine-tuning unit. This invention solves the technical problem of the limited vertical field of view of the 3D laser scanner, resulting in a scanning blind zone near the bottom of the support frame, and avoids the technical problem of the fixed legs of the support frame swinging after being brought together, leading to damage to the fixed legs.
Owner:AVIC GEOTECHN ENG INST +1

A molten salt electrolysis method and device based on vacuum environment regulation

PendingCN122588636Areduce corrosion rateReduce the chemical potential of oxidation
This invention provides a method and apparatus for molten salt electrolysis to produce iron based on vacuum environment control, relating to the technical fields of metallurgy and electrochemistry. The method includes the following steps: S1, constructing an electrolysis system: iron-containing raw materials and flux are added to an electrolytic cell and heated to form a molten electrolyte; S2, vacuum environment control: the electrolysis reaction area is placed in a sealed vacuum environment, and the vacuum degree is adjusted to maintain the oxygen partial pressure in the anode area within a preset range; the preset range refers to the pressure range that enables the formation of a dense and constant-thickness passivation oxide film on the surface of the metal anode, while inhibiting the peeling off of the oxide film; S3, electrolytic reduction: while maintaining the vacuum environment after S2 control, a direct current or pulsed current is applied for electrolysis, the cathode is reduced to produce liquid iron, and oxygen is released at the anode; S4, product separation: the oxygen released at the anode in S3 is rapidly extracted using the vacuum pressure difference, and the liquid iron generated by the cathode reduction in S3 and the slag generated during the electrolytic reduction process are periodically discharged.
Owner:UNIV OF SCI & TECH BEIJING

A steel-like fiber screening machine

ActiveCN224332676Uavoid occlusionGuaranteed screening efficiencySievingScreeningElectric machineryStructural engineering
The utility model relates to screening device technical field especially relates to a kind of steel fibre screening machine.Its technical scheme includes: receiving hopper, connecting cover, electric push rod and support cover, the support cover is provided on receiving hopper upper end outer wall, the support cover outer wall is equipped with the fixed plate of circular array distribution, the support cover upper end outer wall is provided with connecting cover, the connecting cover lower end outer wall is equipped with the inlay block of circular array distribution, the connecting cover inner wall one side is equipped with screening board, the connecting cover inner wall one side lower end is equipped with electric push rod, the electric push rod upper end outer wall is equipped with motor body, the motor body upper end outer wall is provided with support disc, the support disc outer wall is equipped with the top plate of circular array distribution, by setting electric push rod, motor body and top plate, reached the effect of cleaning screening hole, guarantee the cleanness inside screening hole, guarantee the screening efficiency of workpiece through screening hole.
Owner:SHANDONG KAIRUIDA BUILDING MATERIALS CO LTD