17results about How to "Applicable requirements" patented technology

The invention relates to the technical field of medical literature data processing and artificial intelligence, and discloses a random contrast test (RCT) bias risk automatic evaluation method and system, and the method comprises the steps: obtaining RCT literature data containing a text, a table and a flow chart, and a RoB2 evaluation problem set; a problem reconstruction module injected through medical knowledge; performing position decision and multi-modal coordination analysis on the RCT literature through a multi-modal document analysis module; the reconstructed evaluation problem and the analyzed context information are input into a multi-expert cooperation module, cooperative reasoning is performed through a multi-reasoning unit, results are fused through a decision unit, and item-level, field-level and overall bias risk evaluation results are generated. The invention also constructs bias risk entry level and domain level data sets for supporting the training and verification of the method. The system comprises a data acquisition module, a problem reconstruction module, a document analysis module and a collaborative evaluation module, all the modules work cooperatively, automatic evaluation of RoB2 whole-process bias risks is achieved, and the system can be applied to scenes such as evidence-based medical research, system evaluation and clinical research quality control.

This invention provides a sandwich-toughened ceramic-based fuel element and its additive manufacturing method, belonging to the field of nuclear reactor fuel technology. The element includes an outer shell and an inner shell, with an annular gap between them forming a sandwich space containing a silicon carbide whisker toughening structure. The method includes: additively manufacturing a double-layer shell, the geometry of which can be flexibly designed; preparing the sandwich toughening structure, which can be formed by injecting SiC whisker slurry into the sandwich space and solidifying it, or by generating self-grown whiskers in situ within the sandwich space through heat treatment of a Si and C raw material system; subsequently performing chemical vapor infiltration pretreatment; completing fuel loading and opening end sealing; and further performing enhanced CVI densification treatment. This invention introduces a sandwich toughening structure without significantly increasing the structural complexity of the element, effectively improving the fracture toughness, crack resistance, structural stability, and service stability of SiC-based fuel elements.

The utility model provides a material shed structure which comprises a foundation frame and a plurality of shed face units arranged in sequence, each shed face unit comprises a shed face framework and a film body, the shed face frameworks are connected with the foundation frame, and the film bodies are connected with the shed face frameworks in a sliding mode. The utility model further provides a film laying device which is used for laying the film on the material shed structure and comprises a pulling rope and a control mechanism, the pulling rope can be connected with the shed face framework in a sliding mode, and the control mechanism is connected with the film body through the pulling rope for traction. The traction rope can penetrate through the greenhouse surface framework, the two ends of the traction rope are connected with the film body and the control mechanism respectively, and the control mechanism is started to lay the film body; a plurality of shed face units are sequentially installed, and the film body can be tensioned through the tensioner. The utility model has the beneficial effects that through the shed surface framework or the film paving device matched with the film body, the film paving construction efficiency and quality can be improved, the film paving device is better suitable for complex or variable construction environments and requirements, the structure is simple, and the construction cost can be ensured.

The application discloses a suspended ceiling profile calibration welding equipment and relates to the technical field of welding. The equipment comprises a welding mechanism, a feeding mechanism and a calibration mechanism. The welding mechanism and the feeding mechanism are installed on a rack. The welding mechanism, the feeding mechanism and the calibration mechanism are in electrical communication with a control system circuit. The calibration mechanism comprises a pair of traction assemblies and a calibration circuit. The pair of traction assemblies are symmetrically arranged in the rack. Each traction assembly comprises a steel cable, a winding machine and a support machine. The steel cable is connected between the winding machine and the support machine. The support machine is arranged outside the rack. The calibration circuit comprises a pair of sliding variable resistance elements. The pair of sliding variable resistance elements are respectively arranged in the pair of winding machines. The feeding mechanism and the welding mechanism work cooperatively to realize automatic feeding, positioning and peripheral welding. An operator only needs to simply control to complete a plurality of welding, thereby guaranteeing uniform and consistent welding seams, improving welding speed and product quality and being applicable to batch and on-site rapid construction requirements.

This utility model relates to the field of aquaculture equipment, specifically a screening device for snakehead fry of different sizes. It includes two boxes, each with a placement cavity extending through the front wall and connected to the outside. A fish-collecting drawer is located within the placement cavity, with a water inlet pipe above it. One end of the water inlet pipe extends into the fish-collecting drawer, and the other end connects to an external water pump. An oxygenation tray is installed on the bottom of the fish-collecting drawer, connected to an oxygenation hose. An aerator is fixedly installed on the rear wall of the box, with the end of the oxygenation hose furthest from the oxygenation tray connected to the aerator. A screening screen is positioned above the placement cavity, with a reinforcing edge fixedly connected to its top. Compared to existing technologies, this patent, by incorporating a slidable and detachable screening screen and its limiting components, enables rapid replacement and securing of the screen, adapting to the screening needs of fry of different sizes and improving the versatility and ease of operation of the equipment.

The utility model discloses a kind of metal multistage sorting devices for lithium battery recycling, it is related to lithium battery recycling equipment field.The device includes the processing cylinder of inclined arrangement, and the peeling assembly and screening assembly are coaxially arranged in processing cylinder, and feeding filter plate with through-hole and driving motor are equipped at inlet, and driving motor transmission connects two components.Peeled off roll with rubber particles is used to peel off outerwear in peeling assembly, and screening assembly is separated by multistage baffle and discharge port, and external support assembly guarantees stable operation, and dust isolation net and powder collecting box with negative pressure impeller are arranged at air hole.The device realizes integrated processing, improves efficiency, reduces blockage and core damage, improves separation purity, effectively collects dust, and is suitable for efficient environmental protection recovery of waste lithium battery.

This utility model relates to the field of X-ray tube assembly and disassembly technology, and in particular to a X-ray tube assembly and disassembly fixture, comprising an assembly and disassembly fixture body and a X-ray tube body. The assembly and disassembly fixture body consists of upper and lower sets of crossbeams, a cathode connecting rod, an anode connecting rod, a support plate, and a fixing plate. The lower crossbeam has cathode connecting rods fixedly connected to both the left and right sides of its interior, and the upper crossbeam has anode connecting rods fixedly connected to both the left and right sides of its interior. By using nuts and replaceable cathode clamp disassembly fixtures, cathode sleeve disassembly fixtures, and anode clamp disassembly fixtures, the precise assembly and disassembly of the anode cover plate, cathode cover plate, and cathode sleeve body at both ends of the X-ray tube along the axial direction can be achieved. The operation is simple and requires no additional adjustment. The assembly and disassembly fixture body, when used in conjunction with a rotating fixture, can achieve 360° rotation of the X-ray tube body, ensuring accurate positioning and reducing human error.

This application discloses an integrated fixture and transfer device, belonging to the field of chip molding technology. It includes a mounting frame, a semi-finished product gripping mechanism, and a material gripping mechanism. The material gripping mechanism is used to grip and transfer sheet metal and biscuit material; the semi-finished product gripping mechanism is used to grip and transfer semi-finished product sheet metal; the material gripping mechanism and the semi-finished product gripping mechanism are respectively located on both sides of the mounting frame; a flipping mechanism is provided between the semi-finished product gripping mechanism and the mounting frame for driving the semi-finished product gripping mechanism to flip independently. The flipping mechanism connecting the semi-finished product gripping mechanism and the mounting frame in this application enables the semi-finished product gripping mechanism to be flipped, which is suitable not only for traditional die-casting processes but also for reverse die-casting processes.

The invention discloses a transmitter circuit board connecting structure of a diffused silicon pressure sensor, which relates to the technical field of industrial control instruments, and comprises a sensor main body, a bottom circuit board, a top circuit board, a connecting mechanism, a fixing mechanism and a heat dissipation structure, the top layer circuit board is embedded in the sensor main body and located above the bottom layer circuit board, the connecting mechanism is arranged between the bottom layer circuit board and the top layer circuit board, the fixing mechanism is arranged between the sensor main body and the bottom layer circuit board, and the heat dissipation structure is arranged between the sensor main body and the bottom layer circuit board. Through a layered circuit board structure, plug-in connection and heat dissipation isolation design, and in combination with software temperature compensation modeling, high-precision measurement of the diffused silicon pressure sensor without hardware temperature compensation in a wide temperature region is realized, and the temperature adaptation range, the compensation precision and the structural reliability are remarkably improved.

The utility model provides a folding type identification label support device, and belongs to the technical field of engineering identification label construction. The problem that an existing traditional identification label is usually composed of an indication board and a fixed stand column, and the stand column needs to be buried in concrete or soil to achieve stability, so that obvious defects exist is solved. The device comprises a stand column, an identification label connecting rod and a folding supporting mechanism, the stand column and the identification label connecting rod are arranged in the vertical direction, the identification label connecting rod is arranged above the stand column, a supporting square steel pipe is horizontally arranged at the bottom of the identification label connecting rod, a rotating mechanism is arranged at the top of the stand column, and the folding supporting mechanism is arranged on the top of the stand column. The supporting square steel pipe is rotationally connected with the stand column through the rotating mechanism, the folding supporting mechanism comprises a plurality of angle brace square steel pipes, and the angle brace square steel pipes are evenly arranged at the bottom of the stand column in the circumferential direction. The label fixing device is mainly used for fixing the label.

The utility model discloses a screening device for tea leaf finishing relates to tea leaf processing technical field, including device seat, and the one side fixed mounting of device seat has vertical seat, and the left and right sliding slide seat is set to vertical seat front side, and the upper side swing joint of slide seat has the swivel block, and the outer side swing joint of swivel block has the bearing seat, and the bearing seat is swing joint and has the screen cylinder, and a plurality of screen cylinders are evenly arranged on device seat, and the collecting cover of fixed device seat is arranged below screen cylinder. The utility model discloses through multistage screening and screen cylinder rotation design, fine screening tea leaf, remove impurity and small particle, promote tea quality, and the design of collecting cover and collecting box makes tea leaf to be able to quickly shift to different screen cylinder and carry out screening, and the dismounting system of screen cylinder and collecting box simplifies the operation, and it is convenient for pouring out the tea leaf after screening, improves screening efficiency, and the device operation is simple and convenient, easy to clean, and screen cylinder can adjust, and adapts to different tea leaf and screening demand.

This invention relates to an aluminum-based composite material, a robot arm, and a method for preparing the robot arm, belonging to the technical field of metal matrix composites and high-end equipment structural components. The aluminum-based composite material comprises an aluminum alloy matrix and silicon carbide particle reinforcement distributed within the aluminum alloy matrix. The chemical composition of the aluminum alloy matrix, by mass percentage, includes: Cu 3.0-6.0%, Mg 0.5-2.0%, Ag 0.1-1.0%, Zr 0.05-0.3%, Ti 0.01-0.2%, with the balance being Al and unavoidable impurities. The microstructure of the aluminum alloy matrix contains L12-Al3(Zr,Ti) nanophases and lath-like Al2Cu phases. The robot arm prepared using this aluminum-based composite material exhibits an axial tensile strength exceeding 320 MPa and an axial thermal conductivity exceeding 220 W / (m·K) at a high temperature of 300℃, achieving an integrated function of "load bearing and heat conduction." This invention effectively solves the problems of decreased accuracy and shortened lifespan of existing robot arms due to material softening and insufficient heat conduction at high temperatures, and has the advantages of lightweight, high reliability and low cost.

The utility model relates to the technical field of water blowing air knife structures, in particular to a birch juice water blowing air knife combination which comprises an air knife assembly and a driving assembly fixed to the outer side of the air knife assembly, the air knife assembly comprises a water blowing air knife and positioning shafts fixed to the two sides of the water blowing air knife, and side grooves are formed in the two sides of an air outlet of the water blowing air knife in a penetrating mode. Locking bolts are fixed in the side grooves, the driving assembly comprises a driven shaft, driven teeth fixed to the two sides of the driven shaft and a connecting plate arranged on one side of the driven shaft in a sleeving mode, a motor is fixed to one side of the connecting plate, the output end of the motor is fixedly connected with the driving shaft and drives the driving shaft to rotate, and then the driving teeth drive the driven teeth to rotate; the driven shaft is driven to rotate, then the water blowing air knife is driven to rotate through the hanging rod structure fixed to the driven shaft, the stand columns on the two sides have the supporting effect on the driven shaft, after deflection, direction adjustment can be conducted, and the field operation requirement is met.

The application discloses a piezoelectric driving tiltable multi-rotor unmanned aerial vehicle, and solves the technical problems of slow response speed, electromagnetic interference and serious mechanical wear caused by the motor used by the existing tiltable rotor unmanned aerial vehicle. The unmanned aerial vehicle comprises a rotor assembly, a body frame, an electromagnetic motor and a power module, the body frame is connected with the rotor assembly through an arm, a tilting mechanism is arranged in the arm, and a control system is arranged in the body frame; the rotor assembly comprises rotor blades and a rotor shaft, the rotor shaft is connected with the output end of the electromagnetic motor; the tilting mechanism comprises a piezoelectric driving shaft and an ultrasonic motor, the ultrasonic motor is connected with the piezoelectric driving shaft through a bearing; the control system is integrated in the body frame and comprises a sensor module and a controller; and the power module is arranged at the bottom of the body frame. By adopting the piezoelectric driving technology, the tiltable rotor unmanned aerial vehicle has the advantages of high response speed, low noise, no electromagnetic interference and multi-mode flight capability.

The utility model discloses an on-line automatic residual magnetism detection mechanism, which relates to the technical field of residual magnetism detection mechanisms and comprises a mounting plate, the top end of the mounting plate is fixedly connected with a rack, the top end of the rack is fixedly connected with a guide rail, the top of the guide rail is slidably connected with a sliding block, and the top end of the sliding block is fixedly connected with a mounting frame. One side of the guide rail is fixedly connected with a translation air cylinder, and the output end of the translation air cylinder is fixedly connected with the sliding block. According to the utility model, through cooperative work of the gauss meter and the demagnetization device, the counting scheme avoids many defects of traditional manual demagnetization, such as low measurement precision, low efficiency, great environmental influence, poor repeatability and the like; the demagnetization effect is optimized through the extension rod, especially on a workpiece with a small L / D value, the demagnetization effect is remarkably improved, the influence of a demagnetization field is reduced, the automatic detection mode not only improves the detection efficiency and precision, but also enhances the objectivity and reliability of detection, and the device is suitable for large-scale production and high-precision detection requirements.

The invention provides a structural component, a preparation method thereof and electronic equipment. The structural part of the embodiment of the invention comprises an ultra-high-strength part, a first reinforcing part and a second reinforcing part, wherein the ultra-high-strength part is made of first ultra-high-strength steel; the ultra-high-strength part is connected with the base, the abrasion-resistant part is connected with the ultra-high-strength part, the tensile strength of the ultra-high-strength part is larger than that of the abrasion-resistant part, the abrasion resistance of the abrasion-resistant part is larger than that of the ultra-high-strength part, and the tensile bonding strength between the ultra-high-strength part and the abrasion-resistant part is larger than that of the abrasion-resistant part. The structural part disclosed by the invention has relatively high strength and relatively high wear resistance.

The utility model relates to the technical field of fixing mechanisms, in particular to a bicycle lamp holder fixing mechanism which comprises a locking piece, a fixing piece and a fixing piece. The connecting mechanism is arranged on the locking piece; the quick release mechanism is arranged on the connecting mechanism; the quick release mechanism is used for being connected with the lamp, and the connecting mechanism is used for connecting the quick release mechanism and the locking piece and is used for buffering and absorbing energy when the lamp on the quick release mechanism is impacted. By arranging the connecting mechanism, when the lamp is impacted, the return spring is compressed or stretched to deform, part of impact energy can be absorbed in the deformation process of the spring, strength impact of force directly acting on the connecting part is reduced, and damage or deformation of components is avoided; and the lamp is prevented from being damaged due to stress concentration during falling and collision.