21results about How to "Reduce the potential for damage" patented technology

The utility model relates to the technical field of rice breeding, in particular to a germination accelerating and seedling raising device for rice breeding, which comprises a mounting frame, a placing frame, a sliding block, a mounting frame, a seedling raising frame, a connecting plate, a buckling groove, a movable plate and a buckling column, multiple sets of placing frames are sequentially installed in the installation frame from top to bottom, sliding blocks slidably connected with the installation frame are installed at the rear ends of the two sides of the placing frames, and multiple sets of seedling raising frames used for placing rice seedlings are arranged in the placing frames in a buckled mode; according to the seedling raising device, the placement frame can easily slide in the mounting frame through the design of the sliding blocks, meanwhile, the pulling plates, the buckling columns and other assemblies are arranged, a user can conveniently and rapidly fold or disassemble the seedling raising frames, and the seedling raising device is convenient to use and high in practicability. Through the design of the buckling grooves, multiple groups of seedling raising frames can be conveniently connected together or detached for checking, and the growth condition of each group of rice seedlings can be conveniently managed and observed.

The invention discloses a vehicle door unlocking method and device, electronic equipment and a storage medium, and belongs to the field of vehicle control. The method comprises the steps that collision risk information between a vehicle and a target obstacle is actively detected, and under the condition that the collision risk information meets a target risk condition, an unlocking instruction is directly sent to a vehicle door of the vehicle. Different from a traditional mode, whether the safety air bag is exploded or not is not used as a unique signal source for unlocking the vehicle door, and the dilemma that the vehicle door cannot be unlocked due to the fact that the safety air bag is not exploded is avoided. By means of the innovative unlocking mechanism, no matter whether the safety air bag is triggered by collision or not, the automobile door can be unlocked in time as long as the collision risk exists. Therefore, precious time is won for escape of passengers in the automobile and rescue of rescue workers outside the automobile, safety of the passengers in the automobile in collision accidents is remarkably improved, and rescue risks and potential injuries caused by the fact that the automobile door cannot be unlocked in time are reduced.

The invention relates to the technical field of pile foundation construction, in particular to a pile foundation air bag pressure sectional type inflation device and a construction method thereof.The device comprises columns installed at the bottom and the side of a pile foundation and pressure air bags arranged at the bottoms of the columns; the inflation main pipe penetrates through the top of the column body and is connected with the pressed air bag through a pressure supporting structure; the sectional type inflation structures are arranged in the side wall of the column body side by side and connected between the pressed air bag and the inflation main pipe, and the problems that in the prior art, the dynamic pressure problem faced by a pile foundation in the construction process is not effectively solved, and under most conditions, existing supporting measures cannot adapt to the change of soil layer stress in real time, and the construction cost is lowered are solved. The problems that the bearing capacity of a pile foundation is reduced due to the fact that the existing air inflation device is used for inflating the pile foundation, and when a traditional air inflation device deals with complex pressure changes, the traditional air inflation device can only achieve an overall air inflation state and lacks adaptive adjusting capacity for local stress changes, so that the pile foundation is prone to being affected by uneven stress, and the structure failure risk is increased are solved.

The utility model relates to the technical field of medical instruments, in particular to a guide catheter assembly which comprises a plurality of layers of sleeve parts, the sleeve parts are thinned step by step from the first step to the Nth step and are sequentially nested, each sleeve part comprises a catheter body, the near end of each catheter body is provided with an operation handle used for controlling the corresponding sleeve part, and the operation handle is connected with the corresponding sleeve part. The far end of the catheter body is in a bent shape relative to the catheter body, and the far end of the catheter body from the first step to the Nth step has the same or different preset curvatures; and the interventional instrument can penetrate through the Nth-step sleeve piece so as to reach the target far-end blood vessel under the guidance of the multi-layer sleeve piece. According to the scheme, the defects that in the prior art, due to the fact that a guiding catheter is not matched with a pulmonary artery anatomical structure, the operation difficulty is large, time is long, and radiation exposure is large are overcome, and an interventional access is rapidly built in interventional therapy with complex and bent blood vessels.

The utility model discloses a pressure stabilizing pipeline for a water pressure test of an air storage tank, and relates to the technical field of pressure containers. The input end of the first stop valve is connected to the output end of the pressure test pump, and the output end is connected to the input end of the first pipeline; the output end of the first pipeline is connected to the input end of the surge tank assembly; the output end of the surge tank assembly is connected to the input end of the second pipeline; the output end of the second pipeline is connected to the input end of the second stop valve; the output end of the second stop valve is connected to the water injection port of the air storage tank; the piezometric tube is of a bent buffer structure, one end of the piezometric tube is fixedly connected to the top of the surge tank assembly, and the other end of the piezometric tube is detachably connected to the pressure gauge. Therefore, the pressure change generated by the pressure test pump can be effectively buffered, and the test pressure is always maintained in the preset range, so that the risks of equipment damage and process failure possibly caused by pressure fluctuation are reduced.

This utility model discloses a road marking pollution prevention device during construction, relating to the technical field of road construction equipment. It includes a fixed plate, with several electric push rods evenly arranged on the left outer wall of the fixed plate. A mounting shell is provided at the end of the telescopic arm of each electric push rod. A slider is slidably mounted inside the mounting shell, and a threaded rod is rotatably mounted inside the mounting shell, passing through and threadedly connected to the slider. A mounting frame is provided on the side wall of the slider, and a fixed shell is located at the bottom left side of the mounting frame. A groove is provided on the upper inner wall of the fixed shell, and two sliding plates are slidably mounted on the fixed shell. A protective plate is provided at the bottom of the sliding plates. This utility model uses the electric push rods and threaded rods to adjust the position of the mounting shell and protective plate, while simultaneously adjusting the spacing of the protective plates with a bidirectional screw. This allows the device to adapt to road markings of different thicknesses and positions, ensuring that the markings receive comprehensive and uniform protection during construction.

The utility model relates to a guiding catheter which comprises a catheter base. The injection tube is connected with the tube seat, and the tube diameter of one end, far away from the tube seat, of the injection tube is adjustable; the metal filament is arranged in the injection tube along the axial direction of the injection tube, and one end of the metal filament is connected with the tube seat; the extension tube is connected with the injection tube, and the injection tube penetrates into a tube body of the extension tube; the anchoring part is arranged on the extension pipe and can be used for anchoring the extension pipe; when the anchoring part is in a contracted state, the medical instrument can penetrate through the interior of the extension pipe through the anchoring part. When the anchoring part is in the full state, the anchoring part expands in the radial direction of the extension pipe and abuts against the anchoring position so as to anchor the extension pipe. According to the guiding catheter provided by the invention, the guiding catheter can be directly anchored in the guiding catheter, so that the guiding catheter is prevented from displacing.

The application relates to the technical field of cold drill shafts, in particular to an internal cooling drill shaft device based on a turning-milling-drilling composite machining center, which comprises a machining equipment body, the machining equipment body is composed of a machine base, two linear modules one, two linear modules two, a machining table and a machine frame. The internal cooling drill shaft device based on the turning-milling-drilling composite machining center is provided with cooling liquid valves and maintenance liquid valves, the switching of two liquid paths is realized through the movement and pressure change of a piston, the double-valve and double-liquid-path switching design enables the equipment to automatically switch liquid supply according to different working states, in the cooling mode, a third return spring is compressed by a guide wheel to store energy; in the instant of switching to the maintenance mode, the energy stored by the spring is instantaneously released, the piston moves, and a high-pressure pulse liquid flow is generated through the joint action, so that the pressurization flushing effect is realized, and the cleaning degree and applicability of the equipment are improved, and the problem of cooling channel blockage is effectively solved.

The utility model belongs to the technical field of glass scrapers, and particularly discloses an integrated glass scraper which comprises a reinforcing part and an elastic layer, the reinforcing part is coated with the elastic layer to form a scraping head and a handle, the handle is connected with the scraping head, and a plurality of rows of scraping bristles are arranged on the working face of the scraping head at intervals. And the scraping hairs are integrally formed by wrapping the reinforcing piece with an elastic layer. According to the integrated glass scraper, the reinforcing piece is combined with the elastic layer, the reinforcing piece serves as a main body structure, necessary strength and stability are provided for the whole scraper, the reinforcing piece is tightly wrapped with the elastic layer, a comfortable holding handle is formed, a plurality of rows of scraping bristles are integrally formed on the scraping head part, and the scraping head part is more comfortable to hold. The integrated forming of the scraping hairs is realized, the loosening and falling of the scraping hairs can be avoided, and the uniform transmission of the scraping force is ensured, so that the cleaning efficiency and effect are improved.

This utility model relates to the field of belt conveyor cleaning technology, and discloses a quick-release belt cleaning roller and belt conveyor equipment. The quick-release belt cleaning roller includes a cleaning unit, a quick-release unit, and a frame shaft head. The cleaning unit includes a connected cleaning shaft and a cleaning component, with the cleaning component sleeved around the outer circumference of the cleaning shaft. The quick-release mechanism includes a locking fastener and two locking half-circles, the end faces of which are parallel and aligned and connected by the locking fastener to form a connection space. The frame shaft head is connected to the equipment body and the cleaning shaft, and the frame shaft head and the cleaning shaft are connected via the quick-release unit. The design of the split quick-release unit allows for the disassembly and assembly of the cleaning unit without the need for complex tools, facilitating quick replacement of the cleaning component and maintenance of the cleaning shaft, improving maintenance efficiency, and ensuring the reliability of the cleaning unit during belt conveyor operation.

The application relates to the technical field of oil field chemistry, and discloses a kind of Gemini imidazoline clay stabilizer and its preparation method.The clay stabilizer is a quaternary ammonium salt with a specific general structure: wherein the number of carbon atoms n of alkyl chain is 6-11, preferably 7, 8 or 9.The preparation method includes two steps of quaternization reaction: first, 1-(3-aminopropyl) imidazole is heated and refluxed with halogenated alkane in a solvent to obtain an intermediate, and then the intermediate is reacted with halogenated alkane again to obtain the target product.The product shows excellent performance at a low concentration of 0.1%: anti-swelling rate of 87.9%-91.4% at room temperature, water washing resistance of 94.8%-96.8%, small damage to formation permeability, and permeability change rate of only 3.5%-5.1%.The structure of the double quaternary ammonium salt center and the double medium-chain alkyl group realizes efficient adsorption and stable hydrophobic film formation, solving the problem that the prior art cannot simultaneously achieve high efficiency, long-acting and low damage.The method is simple in process and suitable for large-scale production.

This invention discloses an emergency alarm system for power supply safety protection, specifically in the field of power supply protection alarm technology, including an intelligent detection module, a multi-level alarm module, and an automatic processing module. The intelligent detection module achieves accurate identification and low false alarm detection of power supply anomalies through an integrated learning model and online learning mechanism; the multi-level alarm module adaptively generates tiered alarm signals based on dynamic risk assessment and scene perception; the automatic processing module employs reinforcement learning decision-making and digital twin simulation verification to automatically execute optimal safety measures and form a closed-loop control. Through the coordinated operation of these three modules, this invention solves the problems of high false alarm rates, slow response times, and reliance on manual intervention in traditional systems, significantly improving the intelligence level, response speed, and overall reliability of power supply safety protection.

The application relates to a kind of surface nano fluorinated scandium lithium layer modification and near surface anion and cation co-doped nickel cobalt manganese ternary positive electrode material and its preparation method, belong to chemical energy storage battery technical field.According to the molar ratio of Li, Sc and F element 3:1:6, lithium salt, scandium salt and fluorine salt are weighed respectively, then ultrasonic is added in ethanol aqueous solution and is fully stirred to obtain mixed salt solution;Nickel cobalt manganese ternary positive electrode material is added to the mixed salt solution, heated and stirred until the suspension is dry, and then dried to obtain a powder;The powder is calcined in oxygen atmosphere to obtain a kind of surface nano fluorinated scandium lithium layer modification and near surface anion and cation co-doped modified nickel cobalt manganese ternary positive electrode material.The synergistic effect of Li3ScF6 surface coating and near surface lattice Sc, F co-doping improves the electrochemical performance and thermal stability of nickel cobalt manganese ternary positive electrode material.

The utility model provides a Bluetooth module detection tool, and belongs to the technical field of Bluetooth module detection. The Bluetooth module detection tool comprises a base and four fixing blocks integrally manufactured and formed on the two sides of the base respectively, and is characterized in that a plurality of vibration springs are fixedly installed on the surface of the base at equal intervals, a top plate is installed at the tops of the vibration springs, a vibration motor is installed at the bottom of the top plate, and connecting parts are arranged at the four corners of the end, opposite to the top plate, of the base; a protective frame is installed on the surface of the top plate through bolts, a Bluetooth module limiting component is installed on the protective frame, the positioning end of the Bluetooth module limiting component perpendicularly points to the surface of the top plate, and through cooperative use of the vibration springs, the top plate, the vibration motor, the connecting component, the protective frame and the Bluetooth module limiting component, direct and violent collision between a vibration part and a table top can be avoided; the service life is prolonged and the noise is reduced.

The spherical nose hair trimming cutter head assembly comprises a cutter net, a movable cutter and a cutter shaft, the movable cutter is installed at the upper end of the cutter shaft in an X-shaped crossed mode, an elastic assembly is arranged between the movable cutter and the cutter shaft, the top of the cutter net is of a spherical structure, and the top of the cutter net is of a spherical structure. A blade of the movable cutter is an arc-shaped surface, and the blade is tightly attached to the inner spherical surface of the cutter net. The top of the knife net is spherical, so that the oppression on the skin is reduced, the comfort level is improved, and the processing precision of the knife net is improved. The movable cutter is highly attached to the spherical cambered surface, the pulling feeling during shaving can be reduced, and non-inductive trimming is achieved.

The utility model discloses a rotor core structure of a permanent magnet motor rotor, comprising a rotor main body, the center position of which is provided with an inner hole; integrated convex sleeves are fixedly arranged at two ends of the rotor main body, and the inner diameter of each convex sleeve is equal to the inner diameter of the inner hole; an annular groove is further formed in the end face of the convex sleeve, an abutting assembly is further arranged outside the convex sleeve and comprises an abutting portion, the abutting portion is rotationally arranged in the annular groove, and one side of the abutting portion is in threaded connection with the inner wall of one side of the annular groove; according to the utility model, the integrated convex sleeve is additionally arranged on the end face of the rotor, the abutting assembly is additionally arranged on the convex sleeve, and proper pressure is applied to the convex sleeve through the abutting assembly, so that the convex sleeve deforms and is tightly attached to the motor shaft; according to the mounting mode, the connection stability between the rotor and the motor shaft is remarkably improved, the stability and high efficiency of motor operation are ensured, and meanwhile, a new convenient path is opened up for subsequent maintenance work.

The application relates to the technical field of electric power, and discloses a smart carbon transaction service device, which comprises a base, a fixing seat and a projection mirror, the fixing seat is fixedly connected to the upper surface of the base, the projection mirror is fixedly connected to the upper surface of the fixing seat, supporting columns are fixedly connected to the four corners of the upper surface of the fixing seat, the top ends of the supporting columns are fixedly connected with top seats, and the upper surfaces of the top seats are fixedly connected with mounting seats; the projection mirror can be protected from the outside through the protective glass, external personnel can be effectively prevented from touching and colliding with the projection mirror at will, a part of energy can be absorbed by the multiple compression springs I when external force impact is received, direct impact on the projection mirror is reduced, the collision force is reduced, the projection mirror is protected from damage, the elastic force of the multiple compression springs I can evenly distribute the impact force, local excessive stress can be avoided, stress concentration can be reduced, and the risk that the projection mirror is broken or deformed is reduced.

The utility model discloses a multipurpose mechanical arm, and relates to the technical field of mechanical arms. The multipurpose mechanical arm comprises a mechanical arm body, a movable base and a remote control handle, the bottom end of the mechanical arm body is fixed to the front end of the upper surface of the movable base, and the remote control handle is electrically connected with the mechanical arm body and the movable base; the mechanical arm comprises a base layer fixing plate, a first rotating telescopic arm, a second rotating telescopic arm, a third rotating arm, a fourth rotating arm and a battery conveying cage. The multiple mechanical arms are arranged and matched with the movable base and the remote control handle, the mechanical arms can be flexibly operated and accurately controlled in a limited space, the labor intensity of soldiers is relieved, the requirements of different tank models can be met, normal operation of tank battery replacing operation is guaranteed through the arrangement of the combined camera module, and the working efficiency is improved. The design of a balancing weight and a rear battery ensures the stable work of the whole, and the arrangement of a protective fence can simultaneously convey more batteries, so that the working efficiency is improved.

The utility model discloses a cleaning device for laboratory instruments and equipment, which relates to the technical field of instrument and equipment cleaning and comprises an ultrasonic cleaning box, a control panel is mounted at one end of the ultrasonic cleaning box, handles are symmetrically and fixedly connected to two ends of the ultrasonic cleaning box, and a cleaning tank is arranged at the upper end of the ultrasonic cleaning box. Fixing seats are symmetrically and fixedly connected to the bottom end in the cleaning tank, lifting assemblies are mounted in the fixing seats, mounting seats are slidably connected to the outer sides of the fixing seats, cleaning baskets are in threaded connection with one ends of the mounting seats, a base is mounted at the bottom end of the ultrasonic cleaning tank, and damping assemblies are symmetrically mounted between the bottom end in the base and the bottom end of the ultrasonic cleaning tank and close to chamfers. By adopting the structure, the influence of vibration on equipment can be reduced, so that the cleaning precision and stability are improved, the vibration transmission can be reduced, the generation and transmission of noise are reduced to a certain extent, and a quiet and comfortable working environment is provided for a laboratory.

The utility model relates to the technical field of hollow slab bridges, and discloses a hollow slab bridge reinforcing structure which comprises a fixing plate, a plurality of fiber bands are fixedly connected to the outer walls of the two sides of the fixing plate, and the ends, away from the fixing plate, of the fiber bands are fixedly connected with limiting blocks. A threaded rod is fixedly connected to the outer wall of the side, away from the fiber belt, of the limiting block, a first connecting top plate and a second connecting top plate are clamped and matched to the side, away from the fixing plate, of the outer wall of the fiber belt, and connecting side plates are fixedly connected to the outer walls of the first connecting top plate and the second connecting top plate; supporting columns are fixedly connected to the front end and the rear end of the lower portion of the outer wall of one side of the connecting side plate. According to the hollow slab bridge, the reinforcing structure arranged on the hollow slab bridge is provided with the adjustable fiber belt, compared with traditional steel, fiber materials can reduce the dead weight of the reinforcing structure and improve the bearing capacity of the whole bridge, and the pulling force of the fiber materials can be adjusted according to different bridge materials so that the hollow slab bridge can be suitable for bridges made of different materials.

The invention relates to a vehicle surface ice and snow removal control method, device and equipment, a vehicle and a medium, and the method comprises the steps that when it is determined that a target part meets the triggering condition of an ice and snow removal function based on multi-source fusion detection, a high-pressure gas source and a heat source which are not specially used for ice and snow removal on the vehicle are used for generating heated high-pressure gas; wherein the target part is a part where ice and snow need to be removed outside the vehicle; according to the structural characteristics and the fault position information of the target part, controlling a corresponding tail end executing mechanism to spray heated high-pressure gas to the surface of the target part; according to the current ice and snow adhesion state of the target part, performing closed-loop control on the clearing action; wherein the change of the ice and snow adhesion state is used for indicating the ice and snow removal effect. According to the method, the vehicle gas source and the heat source are reused to generate the heating high-pressure gas for targeted injection, efficient removal is achieved based on ice and snow state closed-loop regulation and control, hardware reuse and intelligent energy saving are fused, and convenience, safety and energy efficiency are improved.