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103results about How to "Avoid mechanical damage" patented technology
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Wear-resistant insulated medium voltage power cable
This invention discloses a wear-resistant insulated medium-voltage power cable for use in the cable industry. This cable incorporates a follow-up anti-wear cable sleeve on top of an existing cable. This sleeve restricts the cable's extension and retraction within a certain range. Compared to the fixed-point fixing method in existing technologies, this effectively prevents cable wear caused by the movement of electrical equipment. The follow-up anti-wear cable sleeves, through an interlocking structure, allow the cable to extend and retract with the movement of the electrical equipment, avoiding direct contact between the cable and fixed points, thus effectively preventing wear at those points. Furthermore, in vibrating working environments, the cable's extension and retraction effectively improves environmental adaptability and extends its service life. The follow-up anti-wear cable sleeves can also automatically release after the cable is subjected to significant drag force, effectively preventing mechanical damage. Additionally, the follow-up anti-wear cable sleeves provide early warning and buffer against cable torsion, effectively improving cable safety.
Owner:JIANGSU HONGJIA CABLE CO LTD
Optical receiving assembly and optical module
The utility model discloses a kind of optical receiving assembly and optical module, the optical receiving assembly includes: PCB board, receiving end FA, lens array, PD array and receiving end FA gasket;Wherein, receiving end FA gasket is set on PCB board, and receiving end FA is set on receiving end FA gasket;The light outlet end of receiving end FA is equipped with reflection bevel, and lens array is set in reflection bevel downside;Signal light received by receiving end FA is reflected to lens array by reflection bevel, and enters PD array by lens array.The optical receiving assembly of the utility model adds receiving end FA gasket, receiving end FA is elevated by receiving end FA gasket, can promote the operation space when coupling, effectively reduce the damage risk of element such as receiving end FA and PD array in coupling process;In addition, the light outlet end of receiving end FA is equipped with reflection bevel, and lens array is set in reflection bevel downside, can be received signal light reflection to lens array and shape, make signal light converge on the photosensitive surface of PD array, promote coupling efficiency.
Owner:ACCELIGHT TECHNOLOGIES (WUHAN) CO LTD
A method for making tea by spreading and wilting
PendingCN122229087AUniform dehydrationavoid mechanical damagePre-extraction tea treatmentDrying gas arrangements
A method for withering tea leaves, using withering equipment including a fan (2), a temperature sensor (3), a control box (5), a heating tube (7), and a frame (8), wherein a perforated plate (1) is arranged in the frame (8) to form a trough, and a guide plate (4) is set below the perforated plate (1). The method includes the following steps: starting the control box (5) and measuring and determining the correspondence between the wind speed and the frequency of the fan (2) in segments; spreading the fresh tea leaves flat on the perforated plate (1), controlling the thickness of the spread tea leaves to ensure uniform spreading; setting the direction and wind speed parameters of the fan (2), and starting the fan (2) and the heating tube (7); repeating the blowing process of the fan (2) and the heating process of the heating tube (7) according to the direction and wind speed parameters set in step three until withering is completed. This achieves parameterized and precise control of the withering process.
Owner:INST OF FRUIT & TEA HUBEI ACAD OF AGRI SCI
Hoisting device for heavy packaging
ActiveCN224118584UDisengageavoid mechanical damageTrolley cranesTravelling gearBraced frameClassical mechanics
The utility model provides a hoisting device for heavy packaging, and relates to the technical field of hoisting, the hoisting device comprises a supporting frame, two X-axis toothed rails are symmetrically arranged at the top of the supporting frame, a sliding plate is slidably mounted between the two X-axis toothed rails, a Y-axis toothed rail is arranged on the sliding plate, and a retracting and releasing device is slidably mounted on the sliding plate; a lifting rope is arranged at the bottom of the winding and unwinding device, and a lifting hook is fixedly installed at the end of the lifting rope. And any one of the X-axis toothed rail and the Y-axis toothed rail is provided with a driving assembly. In order to solve the problem that mechanical damage is caused to a hoisting device by swinging when the heavy package is hoisted due to the fact that whether the winding device can not be accurately located over the heavy package or not, a driving assembly and a locking assembly are arranged, so that the winding device can move to the position over the heavy package in advance when the heavy package is hoisted, and the heavy package is prevented from being damaged. And then the heavy package is hoisted and carried.
Owner:SUZHOU QUANJUYUAN PACKAGING PRODUCTS CO LTD
Adaptive inflation control method and system for reusable liquid rocket cylinders
This invention provides an adaptive inflation control method and system for reusable liquid rocket cylinders. The adaptive inflation control method for reusable liquid rocket cylinders includes: automatically matching corresponding inflation parameters and safety thresholds based on acquired data from the onboard cylinders; performing a self-check on the ground-based gas supply system and establishing a rocket-ground safety interlock after the self-check passes; and performing segmented inflation control based on the matched inflation parameters and safety thresholds. The segmented control includes: initially inflating the cylinder at a preset constant flow rate or pressure; after the pressure reaches a first preset safety threshold, inflating at a first set flow rate or pressure; after the pressure reaches a second preset safety threshold, gradually reducing the inflation flow rate or pressure to smoothly approach the target pressure; and when the cylinder pressure approaches the target pressure, replenishing the cylinder with a second set flow rate to the target pressure and then closing the inflation valve. This application achieves the goal of improving inflation efficiency and lifespan.
Owner:BEIJING LANDSPACETECH CO LTD
A mouse fixing device for multi-site acupuncture experiment
PendingCN122272221Aaccurate operationavoid shakingInterference fitPhysical medicine and rehabilitation
This invention discloses a mouse fixation device for multi-site acupuncture experiments, belonging to the field of mouse acupuncture point experiments. It consists of a support base, a telescopic support rod, and a mouse fixation assembly, which is movably connected to the support rod. The mouse fixation assembly includes a bracket and upper and lower fixation plates, which are adjustable in multiple dimensions via first and second self-locking rotating shafts. The upper and lower fixation plates close with an interference fit between fitting bosses and fitting openings. The central operating port is equipped with a rigid rubber adjustable fixing grid, which, along with a lever, can avoid acupuncture points. The lower fixation plate grid has adhesive straps corresponding to the mouse's limbs and head, with pre-reserved gaps between the plates. A suction cup is provided at the bottom of the support base to stabilize the device. This device achieves double secure fixation of the mouse, with flexible and adjustable operating angles, avoiding acupuncture point obstruction, protecting the mouse from mechanical damage, improving the accuracy and efficiency of acupuncture experiments, and adapting to the needs of multi-site acupuncture experiments on mice.
Owner:THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF TCM
Supporting tray for fruit detection and conveying
ActiveCN224184756Uavoid mechanical damageImprove compatibilityColor/spectral properties measurementsTesting foodSupport pointVertical axis
Owner:WUXI DETAILI TECH CO LTD
Miniature electric coagulation haemostatic forceps for animal experiment operation
ActiveCN224112817Uadjustable lengtheasy to useSurgical veterinaryElastic componentElectrocoagulation
The utility model relates to the technical field of electric coagulation haemostatic forceps, and discloses a miniature electric coagulation haemostatic forceps for animal test surgery, which comprises two connecting rods, the left sides of the two connecting rods are fixedly connected with extension rods, the exteriors of the two extension rods are connected with sliding sleeves in a sliding manner, elastic assemblies are arranged in the extension rods, and the elastic assemblies are connected with the sliding sleeves in a sliding manner. A sliding groove is formed in the left side of the interior of the extension rod, a hemisphere is fixedly connected to the bottom of the elastic assembly, a plurality of clamping grooves are formed in the bottom side of the interior of the sliding sleeve, an outer clamp body is fixedly connected to the left side of one connecting rod, and an inner clamp body is fixedly connected to the left side of the other connecting rod. According to the haemostatic forceps, after the hemisphere moves to the designated clamping groove position, the spring releases elastic potential energy, the hemisphere is pushed to reset and be clamped in the clamping groove in the bottom of the sliding sleeve, and therefore the length of the haemostatic forceps is locked. The length of the hemostatic forceps can be flexibly adjusted according to the requirements of different operation scenes, and a doctor can operate and use the hemostatic forceps conveniently.
Owner:JIANGSU JICUI MEDICAL ENG CROSS TECH RES INST CO LTD
Cleaning and peeling device for sweet potato food processing
This utility model relates to the field of cleaning and peeling devices, and more particularly to a cleaning and peeling device for sweet potato food processing, comprising a cleaning tank and a cleaning mechanism; the cleaning mechanism is provided on both sides of the cleaning tank, a pushing mechanism is provided on one side of the cleaning tank, a moving mechanism is provided at the lower end of the inner wall of the cleaning tank, and a diversion mechanism is provided at both ends of the cleaning tank, with a peeling machine provided at the lower end of the diversion mechanism. This utility model recycles water through the cleaning mechanism and the diversion mechanism, and the moving mechanism and the pushing mechanism transport the cleaned sweet potatoes into the peeling machine. It solves the problems of existing devices that mostly use single water injection for rinsing, with water being directly discharged after use, resulting in low water resource utilization, difficulty in thoroughly removing dirt from the grooves on the surface of sweet potatoes, slow cleaning speed, need for multiple water changes, and the need for manual retrieval of sweet potatoes after cleaning and manual transfer to the peeling machine, which is labor-intensive and prone to skin damage due to collision and squeezing during manual transfer, affecting the subsequent peeling quality and yield.
Owner:GAOZHOU XIHAN ECOLOGICAL AGRI DEV CO LTD
An eccentric surging structure and a pretreatment device for soaking and rinsing surgical instruments
PendingCN122076760AGood peeling effectImprove cleaning efficiencyCleaning using liquidsVibration suppression adjustmentsGear wheelElectric machinery
This invention discloses an eccentric surging structure and a surgical instrument immersion and rinsing pretreatment device. The structure utilizes a rotary motor to drive a fixed gear, which, through linkage with a connecting rod via an eccentric gear, causes a cleaning tray to slide in a circle, thereby agitating and cleaning the surgical instruments in water. The structure comprises a frame, a rotary motor, a fixed gear, a second connecting rod, a third connecting rod, a first connecting rod, a fixing pin, and an eccentric gear. The side of the frame is in contact with the inner side of the cleaning tank in the surgical instrument immersion and rinsing pretreatment device. The rotary motor is fixedly mounted on the bottom surface of the frame, and the fixed gear is mounted on the frame. The axle of the fixed gear passes through the frame and is fixedly connected to the motor shaft of the rotary motor. A sealed bearing is placed between the axle of the fixed gear and the frame. One end of the second connecting rod is rotatably connected to the top surface of the frame, and one end of the third connecting rod is also rotatably connected to the top surface of the frame.
Owner:XUZHOU XINNANHU TECH CO LTD
Laser cleaning system
ActiveCN224114773Ueasy to controlavoid mechanical damageCleaning using gasesOptical controlLaser beams
The utility model relates to a laser cleaning system which comprises an operation room, a workbench, a laser generating system, an intelligent identification system and a controller, the workbench, the laser generating system, the intelligent identification system and the controller are arranged in the operation room, a workpiece to be cleaned is placed on the workbench, the laser generating system is used for enabling laser to act on the workpiece to be cleaned, and the intelligent identification system comprises a scanning assembly. The scanning assembly is used for planning a cleaning path, cleaning path information of the scanning assembly is sent to the controller, and the controller controls the optical control assembly to adjust the cleaning position of the laser acting on the to-be-cleaned workpiece. The workpiece to be cleaned is scanned through the intelligent recognition system, a proper cleaning path is planned for the workpiece to be cleaned, the optical control assembly emits the laser beam to the surface of the workpiece to be cleaned according to the cleaning path for laser cleaning, physical contact with the surface of the workpiece to be cleaned is avoided through laser cleaning, mechanical damage is avoided, and the service life of the workpiece to be cleaned is prolonged. And the cleaning area of the to-be-cleaned workpiece can be accurately controlled through the proper cleaning path.
Owner:SHAOXING XINLIAN SEMICON TECH CO LTD
Liquid nitrogen sampling heat preservation storage box and storage method
The application discloses a liquid nitrogen sampling heat preservation storage box and a storage method, relates to the technical field of storage devices, and comprises a box body, a box cover arranged on the box body, a liquid nitrogen filling opening arranged on the box body, and a limiting device arranged in the box body. The limiting device comprises a first limiting plate for limiting the bottom surface of a sample placed in a sample bag and a second limiting plate for limiting the top surface of the sample placed in the sample bag. The first limiting plate and the second limiting plate are both hollow structures. The first limiting plate and the second limiting plate are immersed in liquid nitrogen, the overall, rapid and uniform cooling of the sample is realized, and the integrity of nucleic acid is maximally protected. Mechanical damage of the sample caused by the exposure of the sample to the liquid surface due to buoyancy or the collision and friction of the sample with the box cover and the side wall is prevented, and the freezing stability of the sample and the nucleic acid preservation quality under a complex transportation environment in the field are improved.
Owner:GANSU AGRI UNIV
A leak-proof sealing mechanism for coal mine ventilation duct interfaces
This utility model discloses a leak-proof sealing mechanism for the interface of a coal mine ventilation duct, relating to the field of ventilation duct interface sealing technology. It is installed on the ventilation duct body, with a base fixedly welded to the bottom end of the duct body. Flanges are symmetrically connected to both ends of the duct body, and a first fixing block is fixedly connected to the front of the duct body, with a threaded groove inside the first fixing block. This utility model, by incorporating threaded rods and a connecting sleeve, allows the connecting sleeve to seal and protect the flange and its internal bolts, preventing leakage caused by debris accumulation and effectively preventing mechanical damage from bumps and impacts, thus reducing leakage caused by flange deformation. The design also includes rubber rods and rubber rings. During use, multiple sets of rubber rods distributed on the outside of the connecting sleeve can cover and protect the edge of the connecting sleeve, ensuring safety during operation. The rubber rings can fill any gaps.
Owner:裴凯强
Microfluidic chip driven by acoustically excited droplet-shaped microbubbles and its fabrication process
This invention relates to a microfluidic chip driven by acoustically excited droplet-shaped microbubbles and its fabrication process. A droplet-shaped microbubble array is obtained through microfluidic chip structure design. Under acoustic excitation, the microbubbles oscillate, generating asymmetric acoustic-flow vortices, which in turn directionally drive the microfluidic fluid within the microchannels. The flow rate can be linearly controlled by adjusting the driving voltage, offering advantages such as non-contact, pollution-free, and highly efficient directional driving. The fabrication process is based on MEMS technology, employing nitrogen plasma bonding and soft lithography, resulting in low cost and suitability for mass production. This invention solves the problem of the lack of directionality in traditional symmetrical acoustic-flow vortices and can be widely applied in fields such as biomedicine, drug delivery, and chemical analysis.
Owner:BEIJING UNIV OF TECH
An intraoperatively customisable implantable piezoelectric blood flow monitoring sensor
The application provides an intraoperative instant customized implantable piezoelectric blood flow monitoring sensor, which mainly comprises a piezoelectric sensor with a spiral structure and a wireless signal processing and transmission module; the piezoelectric sensor takes beta-phase polyvinylidene fluoride as a core functional layer, adopts silver nanofibers to form a high-stretch electrode network, and is ultrathin waterproof packaged through poly-p-xylylene; by using the internal residual strain gradient induced by peeling, the sensor can spontaneously form a spiral structure suitable for 2mm-10mm diameter blood vessels, realizing non-destructive and close conformal wrapping; the piezoelectric sensor works based on the piezoelectric effect, captures the mechanical energy generated by the vasomotion of the blood vessel wall and converts it into a voltage signal, realizing real-time monitoring of intraoperative hemodynamics, respiration and heart rate; by analyzing the change of the voltage amplitude and the pulse wave delay, millisecond-level quantitative early warning of intraoperative serious complications can be realized, and the sensor can be non-destructively peeled off after operation, thereby providing a high-precision whole-cycle monitoring scheme for vascular reconstruction surgery.
Owner:BEIJING INST OF TECH
Contact structure of longitudinal magnetic circuit breaker
PendingCN122000228Aprevent overcompressionImprove arc extinguishing effectHigh-tension/heavy-dress switchesAir-break switchesClassical mechanicsArc extinction
The invention relates to a contact structure of a longitudinal magnetic circuit breaker, which can solve the problem that the contact structure of the longitudinal magnetic circuit breaker in the related technology is difficult to give consideration to good arc extinguishing effect and mechanical strength, the contact structure of the longitudinal magnetic circuit breaker comprises a contact cup, a screw mechanism and a contact blade, the contact cup is provided with an accommodating cavity and a cup opening, the screw mechanism is embedded in the accommodating cavity, and the cup opening is provided with an opening. The spiral mechanism is provided with at least two spiral grooves, the spiral grooves are spirally arranged around the axial direction of the contact cup, at least part of the spiral mechanism protrudes out of the cup opening in the axial direction of the contact cup, the contact piece abuts against the spiral mechanism in the axial direction of the contact cup, and the contact piece is configured to be capable of compressing the spiral mechanism in the axial direction of the contact cup till the spiral mechanism abuts against the cup opening for limiting.
Owner:GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
A method for rapid high strength microwave bonding of ceramics to cemented carbide
This invention discloses a rapid, high-strength microwave bonding method for ceramics and cemented carbide, belonging to the field of ceramic material bonding technology. The method includes the following steps: preparing a metal solder; grinding, polishing, and cleaning the bonding surfaces of the ceramic and cemented carbide respectively; loading the prepared metal solder into a mold and pressing it under uniaxial pressure to obtain a metal solder sheet; placing the ceramic, metal solder sheet, and cemented carbide in a stacked structure in a microwave sintering furnace for microwave sintering to achieve the bonding of the ceramic and cemented carbide. Compared with traditional brazing and diffusion welding, this ceramic-cemented carbide microwave bonding method increases the heating / cooling rate by 6-10 times, improves the single-furnace bonding efficiency by 5-9 times, allows for mass production, and yields ceramic-cemented carbide bonding interfaces with high strength. This invention significantly improves production efficiency, reduces energy consumption, and has widespread application value.
Owner:NANJING UNIV OF SCI & TECH
Intelligent injection and suction control system for ophthalmologic operation and use method of intelligent injection and suction control system
ActiveCN122075227AImprove stabilityavoid mechanical damageEye surgeryImaging processingImage manipulation
The invention relates to an intelligent injection and suction control system for ophthalmologic operation and a using method thereof, and belongs to the technical field of medical instruments, the intelligent injection and suction control system comprises an intelligent host system, and a main control circuit board, a main suction pump and a high-speed servo compensation perfusion pump are integrated in the intelligent host system; a main suction channel and a compensation infusion channel are arranged in a needle handle of the double-channel intelligent needle in parallel, and the tail ends of the main suction channel and the compensation infusion channel are connected with a suction needle tube and a compensation infusion tube respectively. And the image processing system comprises an image acquisition unit and an image processing unit, and the image processing unit is internally provided with a multi-modal sensing fusion module and a feedforward prediction control module. According to the method, the anterior chamber collapse and the surge effect can be actively prevented, the conversion from passive response to predictive intervention is realized, and the intra-operative anterior chamber stability and the operation safety are effectively improved.
Owner:THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
Multi-mode intelligent vacuum fresh-keeping machine based on food material identification and identification method
PendingCN121990242Aavoid mechanical damageEliminate local residual air bagsPackaging by pressurising/gasifyingCharacter and pattern recognitionControl signalControl engineering
The invention discloses a multi-mode intelligent vacuum fresh-keeping machine and method based on food material recognition. The fresh-keeping machine comprises a vacuum cavity assembly, a depth vision collection assembly, a pneumatic execution assembly and a main control processing assembly. The pneumatic execution assembly comprises a frequency conversion pneumatic pump module, an airflow direction switching valve module and an array type differential suction nozzle module. The array type differential suction nozzle module is provided with a plurality of independent air suction units connected with the independent electromagnetic valve module in series. The main control processing assembly is configured to monitor the local deformation rate of the surface of the vacuum packaging bag through the depth vision collection assembly, generate a differential control signal based on the deformation rate distribution difference and independently adjust the on-off state of each independent electromagnetic valve module so as to construct a gradient negative pressure field. The main control processing assembly is further configured to identify object attributes by detecting the virtual pneumatic impedance and monitor the liquid diffusion risk in combination with an optical flow method. According to the invention, active self-adaptive vacuum preservation based on visual-airflow field coupling is realized, and the packaging quality of complex food materials is effectively improved.
Owner:GUANGDONG DINGLISHENG TECHNOLOGY CO LTD
Laser nozzle disassembling and assembling mechanism
ActiveCN224073519UEliminate risk of solidificationstable disassemblyMetal working apparatusSoldering auxillary devicesLaser NozzleButt joint
The utility model discloses a laser nozzle dismounting and mounting mechanism which comprises a mounting seat of a hollow structure, a plurality of mounting holes are formed in the outer wall of the mounting seat, a butt joint is fixedly communicated with the bottom of the mounting seat, the inner wall of the butt joint is slidably connected with a nozzle body, the outer wall of the nozzle body is fixedly connected with two arc-shaped clamping blocks, and the two arc-shaped clamping blocks are fixedly connected with the mounting seat. The outer wall of the butt joint is fixedly connected with two arc-shaped contact blocks, and the outer walls of the two arc-shaped contact blocks are fixedly connected with limiting blocks. The non-thread structural design eliminates the risk of thread solidification caused by high temperature and scale deposition, and it is ensured that the screw can still be disassembled smoothly after being used for a long time; the buckle type locking does not need to apply torque, mechanical damage is prevented, and the air leakage probability is reduced; the arc-shaped clamping blocks are matched with the limiting blocks to achieve accurate alignment, the side blocks provide double rotation limiting, and the connection stability is guaranteed; and the circular ring drives the side block to vertically move to unlock or lock the clamping block, so that the replacement process is simplified, and the maintenance efficiency is improved.
Owner:JIANGSU BAIDU SHUNFENG SEMICONDUCTOR CO LTD
A preservation device for processing agricultural and sideline products
This utility model discloses a preservation device for processing agricultural and sideline products, including a preservation box with multiple vertically distributed storage compartments fixed inside. A rotating shaft, rotating in tandem with the storage compartments, is rotatably connected inside the preservation box. Multiple leveling components, corresponding to the storage compartments, are fixed to the outer wall of the rotating shaft. This preservation device for processing agricultural and sideline products achieves synchronous processing of materials in multiple storage compartments by driving the rotating shaft and the multiple leveling components to rotate synchronously through the rotating components. Through the linkage of the rotating plate, elastic component, mounting plate, and leveling rod in the leveling component, the rotational motion is converted into a gentle leveling and agitating action on the surface of the materials. The elastic component ensures that the force when the leveling rod contacts the materials is flexibly adjustable, effectively turning the materials while avoiding mechanical damage to the surface of agricultural products from rigid impacts. This spreads and disperses accumulated agricultural and sideline products, facilitating their preservation and improving their preservation effect.
Owner:ENSHI TUJIADONG SELENIUM HEALTH TECH DEV CO LTD
A self-weight backfilling type submarine cable protection device
PendingCN122092126AEasy to installEasy to maintain laterCable installations on groundStructural engineeringCorrosion resistant
This invention discloses a self-weight backfilling submarine cable protection device, comprising: an upper cover shell, a lower trough, a fixing base, and guide wings; the upper cover shell and the lower trough are detachably connected; the fixing base is disposed at both ends of the lower trough for limiting the submarine cable; the guide wings are symmetrically disposed on both sides of the lower trough and integrally formed with the lower trough; a backfilling trough is provided inside the lower trough, and the backfilling trough is placed between the fixing bases; this invention reduces the construction difficulty of the protection device and improves the convenience of underwater installation while ensuring structural stability; it optimizes and weakens the scouring effect of ocean currents on the seabed and the sediment around the cable; it achieves long-term stability of the backfilled sediment, preventing secondary scouring that could lead to cable exposure; and it meets strength requirements while improving the device's corrosion resistance and service life in the marine environment.
Owner:SUN YAT SEN UNIV
A roll machine for facilitating the delivery of a waterproofing roll
This utility model relates to the field of roll forming machine technology, and discloses a roll forming machine for easy conveying of waterproof roll forming materials. It includes a frame, multiple conveyor rollers rotatably connected to the frame, and a conveyor belt sleeved between the multiple conveyor rollers. A pressing assembly, a cleaning assembly, and a winding assembly are sequentially installed on the frame along the conveying direction of the conveyor belt. The winding assembly includes a winding roller, mounting cylinders symmetrically installed on both sides of the frame, and clamping assemblies that hold both ends of the winding roller. A winding assembly that drives the mounting cylinders on both sides to rotate synchronously on the frame is installed at the bottom of the frame. This utility model has the following advantages and effects: it facilitates quick disassembly of the winding roller and improves the conveying and winding efficiency of waterproof roll forming materials.
Owner:JINGZHOU ZHONGYU WATERPROOF MATERIAL CO LTD
A negative pressure wound drainage device for various chronic wound exudates
This invention relates to the field of medical device technology, and in particular to a negative pressure drainage device for various chronic wound exudates. It includes a disposable drainage bag, a dressing, and a frame for connecting the disposable drainage bag and clamping it onto a hospital bed. It also includes a micro-negative pressure drainage drive unit located on the bottom side of the clamping unit to generate negative pressure inside the disposable drainage bag; and a fastener, a threaded structure, installed at the bottom of the frame, which is also connected to a moving plate via a transmission component. Through the cooperation of the fastener, transmission component, and moving plate, the micro-negative pressure drainage drive unit organically integrates the frame fixing operation with the negative pressure generation process. When the fastener is tightened and fixed to the hospital bed, it simultaneously drives the moving plate to reset and applies tension to the fixing spring, causing the first clamping plate to displace away from the second clamping plate, thereby pulling the drainage bag to form an outward expansion deformation, creating a continuous and stable micro-negative pressure environment inside the bag.
Owner:BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSITY
Freeze-drying method of lipid nanoparticles, freeze-drying preparation and application of freeze-drying preparation
PendingCN121953619AImproved process robustnessImprove anti-interference abilityOrganic active ingredientsDrying solid materials without heatZeta potentialFreeze-drying
The invention belongs to the field of biological pharmacy and pharmaceutical preparations, relates to a freeze-drying method of lipid nanoparticles, a freeze-drying preparation and application of the freeze-drying preparation, and particularly relates to a freeze-drying method capable of keeping the structural integrity and biological activity of the lipid nanoparticles and a high-quality and high-stability LNP freeze-drying preparation obtained through the method. By systematically optimizing the type of a freeze-drying protective agent, a buffer solution system and key freeze-drying process parameters and particularly adopting an innovative gradient cooling and freezing procedure, slow cooling and rapid phase change are realized, and a stable freeze-drying process which is insensitive to the initial state (such as liquid height, placement position in a freeze dryer and density) of LNP is found. The LNP freeze-dried preparation prepared by the process can perfectly maintain the original particle size distribution, Zeta potential and polydispersity index after being redissolved, and still can maintain extremely high nucleic acid encapsulation efficiency and biological activity after being stored for a long time, so that the stability and clinical application convenience of an LNP product are remarkably improved.
Owner:YAOHAI BIOTECHNOLOGY (BEIJING) CO LTD
Induction heating type chip welding device
ActiveCN224196089Uavoid mechanical damageUniform deliveryNon-electric welding apparatusThermodynamicsProcess engineering
The utility model discloses an induction heating type chip welding device, and relates to the technical field of chip welding. The device comprises a tool jig, wherein the tool jig is fixedly connected with a supporting rod for placing a chip through a placing cavity formed in the tool jig; the welding part comprises two hot-pressing seats, the two hot-pressing seats are symmetrically distributed by taking the tool jig as a center, one end, close to the tool jig, of each hot-pressing seat is fixedly connected with a heat conduction block, and a heat insulation plate is fixedly mounted on the outer surface of each hot-pressing seat. The utility model can effectively solve the problems in the prior art that no definite time sequence control exists in the heating and pressure applying process, the heating block starts to dissipate heat when approaching the chip, so that the welding flux is melted in advance when the pressure is not applied, the welding flux is oxidized, sheetted or bridged, and if the pressure is firstly applied and then the heating is performed, the welding flux cannot be heated. And the problem that the chip packaging material is deformed due to overlong pressure duration time is solved.
Owner:HUIZHOU FENGYU ELECTRONIC TECH CO LTD
Seal ring multi-stage incremental trimming control system and method based on separation rate feedback
The present application relates to the technical field of rubber product automatic manufacturing, and discloses a multi-stage incremental trimming control system and method for sealing rings based on separation rate feedback, which comprises a variable-frequency edge-removing execution mechanism, an air separator, a visual counting sensor, a shunt mechanism, a backflow channel and a dynamic parameter controller. The method acquires material images in real time through the visual counting sensor and calculates the proportion of non-separated products; the dynamic parameter controller compares the proportion of non-separated products with a preset separation threshold; when the proportion of non-separated products exceeds the threshold, the shunt mechanism intercepts the material into the backflow channel, the dynamic parameter controller increases the cycle number value and adjusts the current actual execution intensity parameter of the variable-frequency edge-removing execution mechanism, so that the physical output intensity of the variable-frequency edge-removing execution mechanism increases nonlinearly with the increase of the cycle number value. The present application reduces the mechanical damage rate of the sealing ring body while ensuring the removal rate of stubborn flash through multi-stage incremental parameter adjustment logic.
Owner:NINGBO YOKEY PRECISION TECH CO LTD
Gastric residence drug delivery system based on intelligent deformation and anchoring of biomechanical response and preparation method thereof
PendingCN122075899AImprove retentionImprove stabilityMetabolism disorderPeptide/protein ingredientsBiomechanicsPharmaceutical drug
This invention relates to a gastric drug delivery system based on biomechanically responsive intelligent deformation and anchoring, and its preparation method. The system includes a main body, multiple microneedle structures, a drug-loading unit, and a controlled-release unit. The main body is made of a thermoresponsive shape memory polymer and includes a head and multiple tentacles. The head is spherical with an opening, and the tentacles are distributed around the opening. Multiple microneedle structures are disposed on the tentacles. The drug-loading unit contains a metal-organic framework carrier and a drug, with the drug loaded on the metal-organic framework carrier. The drug-loading unit is distributed in the main body and / or multiple microneedle structures. When a triggering factor occurs, the drug-loading unit releases the drug. The controlled-release unit is used to control the release rate of the drug in the drug-loading unit. The main body structure of this invention utilizes the shape-restoring force generated by thermo-induced mechanical deformation to achieve stable buoyancy and fluid obstruction in gastric juice. The microneedle structures anchor to the gastric wall, effectively counteracting mechanical displacement caused by gastric peristalsis, enabling precise on-demand drug delivery.
Owner:BEIHANG UNIV
Self-rotating multi-stage filtering and purifying device
ActiveCN224194250UGuarantee continuous and stable operationBest contact pressureStationary filtering element filtersFiberCircular disc
The utility model provides a self-rotating multi-stage filtration and purification device, which belongs to the technical field of filtration and comprises a bearing mechanism, a support and a filter cartridge shell fixedly mounted in an inner cavity of the support. And the anti-clamping mechanism comprises a pipe body fixedly mounted at the top of the filter cartridge shell. The three annularly-distributed elastic telescopic rods are matched with the rubber elastic block to form a self-adaptive pressure adjusting system, and it is guaranteed that the optimal contact pressure between the scraping piece and the filter screen is kept all the time; long fiber impurities can be actively cut off and guided through the synergistic effect of the inclined cutting blade and the guide plate, and winding and stacking are prevented; mechanical damage caused by excessive stretching is avoided through the matched design of the limiting disc and the connecting disc; aiming at the working conditions of high-viscosity fluid and long-fiber-containing substances, the problem that progressive clamping stagnation is difficult to monitor is solved through a mechanical self-adjusting mechanism, the self-cleaning efficiency and the reliability of system operation are remarkably improved, meanwhile, the overload risk of a motor is reduced, and continuous and stable operation of a filtering system is guaranteed.
Owner:浙江净界智能科技有限公司
Brown rice processing device based on flexible shelling technology
ActiveCN224271257UAvoid excessive cutting at one timeGuaranteed stabilitySievingGrain huskingAgricultural scienceAgricultural engineering
The utility model discloses a brown rice processing device based on a flexible hulling technology, which relates to the technical field of brown rice processing and comprises a machine shell, the upper end of the machine shell is connected with a feeding hopper, a material distributing mechanism located below the feeding hopper is arranged in the machine shell, a hulling mechanism located below the material distributing mechanism is arranged in the machine shell, and the hulling mechanism is located below the material distributing mechanism. A shell removing mechanism is arranged in the machine shell, a screening mechanism located below the shell removing mechanism is arranged in the machine shell, a movable groove is formed in the side wall of the machine shell, the screening mechanism is located on the inner side of the movable groove, a blowing fan is installed on one side wall of the machine shell, and an impurity outlet pipe is connected to the other side wall of the machine shell. According to the utility model, uniform intermittent blanking of rice can be realized, one-time excessive blanking of rice can be avoided, the stability of subsequent rice hulling and screening processes is further ensured, meanwhile, flexible hulling is utilized, mechanical damage of traditional machinery to brown rice can be avoided, the broken rice rate is reduced, broken rice can be screened out, and the quality of discharged brown rice is ensured.
Owner:TIANJIN ZHENGHONG FOOD CO LTD