13results about How to "Guaranteed Tolerance" patented technology

The utility model relates to the technical field of medical instruments, in particular to a gas collection and analysis mechanism, ventilation equipment and sports wearable equipment. A wearable main body in the gas collection and analysis mechanism is connected with a collection and analysis module; the wearable main body is suitable for being worn on the human face; the acquisition and analysis module corresponds to the human mouth and / or nose; the collecting and analyzing module is used for collecting changes of gas exhaled and / or inhaled by the human body and obtaining the breathing condition of the human body according to the changes of the gas. The gas collecting and analyzing mechanism can directly monitor the breathing condition of the user with high precision. When the gas collection and analysis mechanism is applied to the ventilation equipment, the synchronism of human-machine breathing can be improved, so that the comfort, tolerance, compliance and effectiveness of noninvasive ventilation are ensured, and the ventilation treatment effect is improved. When the gas collection and analysis mechanism is applied to the sports wearable device, the sports wearable device can accurately calculate heat consumed by the human body and other demand indexes such as blood oxygen.

An assembly type long shaft is arranged in the transmission structure of the long-arm-span robot, the assembly type long shaft is hollow and is divided into multiple sections in the length direction, and the transmission structure further comprises a bearing fixing sleeve riveted to the peripheral face of a certain section of the assembly type long shaft and used for being matched with a bearing; and the bearing spline housing is riveted on the inner wall of a certain section of the end part of the assembly type long shaft and is used for being matched with a bearing. The assembly type long shaft is in a hollow shape, compared with a solid shaft, the hollow shaft with the same diameter can bear the same maximum torque, and the strength is higher. More importantly, the whole shaft is split, and parts needing to be matched are machined and then connected with the shaft body. And the connection parts of the bearing, the spline and the like are riveted after being machined, so that the shaft cannot be deformed due to machining in the machining process, and the coaxiality and the tolerance of the bearing mounting position are ensured.

The invention provides bacillus licheniformis capable of producing amylase, protease and cellulase and application of the bacillus licheniformis. The bacillus licheniformis is bacillus licheniformis FJAT-27214 and is preserved in the China General Microbiological Culture Collection Center on August 6, 2025, the preservation address is No. 3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No. 35536. The bacillus licheniformis disclosed by the invention can be used for simultaneously producing amylase, protease and cellulase at high yield; the bacillus subtilis has antibacterial activity to escherichia coli and has certain tolerance to artificial gastric juice, artificial intestinal juice and cholate, the survival rate in the artificial gastric juice is 58.11%, the survival rate in the artificial intestinal juice is 82.58%, and the survival rate in the cholate is 28.03%. When the strain fermentation liquor is used for pomace micro-storage, the content of crude protein and total sugar of pomace can be remarkably increased, meanwhile, the content of neutral detergent fiber and ammoniacal nitrogen is remarkably reduced, and an effective strain resource is provided for pomace micro-storage fermented feed.

This invention discloses a surface-source blackbody structure with a multi-level composite cone structure and its fabrication method, belonging to the field of microstructure optical design and fabrication technology. This invention forms a multi-level composite absorbing unit by setting a periodically arranged first-level main cone structure on a basic support structure, and further constructing a second-level secondary cone structure array with gradient characteristics on its top platform. This not only increases the optical path and multiple internal reflections, but also matches different wavelengths through gradient dimensions. Since the secondary cone array contains multiple scales, energy is absorbed step by step during the transmission process from the outside to the inside; simultaneously, it can achieve efficient absorption over a wide wavelength range and large angles, thus structurally realizing a near-ideal planar blackbody target surface, which is beneficial for promoting its integrated application in infrared calibration, thermal imaging system calibration, and space remote sensing.

The invention provides a silica gel mold for producing a ceramic unicompartmental knee joint femoral condyle and a manufacturing method of the silica gel mold, and relates to the technical field of ceramic unicompartmental knee joint femoral condyle manufacturing. According to the silica gel mold for producing the ceramic unicondylar knee joint femoral condyle and the manufacturing method of the silica gel mold, the upper mold, the lower mold, the forming block, the connecting block and the arc block are designed, the manufacturing process is easy to operate and complete in process, meanwhile, a 3D printed product is demolded, the precision requirement of the cavity size is better guaranteed, various curing agents are added in the manufacturing process, and the manufacturing cost is reduced. The method has the advantages that metering and proportioning are guaranteed, various reaction times are fully controlled, a silica gel mold manufactured under various optimal conditions has the advantages of being good in abrasion resistance, fine in simulation and the like, the ceramic unicompartmental knee joint femoral condyle is directly formed through the mold, machining is not needed, raw materials are saved, manufacturing cost is reduced, production efficiency is improved, batch production is achieved through the mold, and production cost is reduced. The precision and tolerance of a machining machine do not need to be considered, the consistency can be greatly guaranteed, and the precision and tolerance of products are guaranteed.

The utility model relates to the technical field of steel structure workpiece processing equipment, and particularly discloses an assembling device for steel members, which comprises a clamping part, the clamping part comprises a first vertical shaft, a vertical clamping piece is sleeved at the lower end of the first vertical shaft, the vertical clamping piece is in running fit with the first vertical shaft, a second vertical shaft is arranged below the vertical clamping piece, and the second vertical shaft is sleeved at the lower end of the second vertical shaft. A vertical bevel gear is arranged below the second vertical shaft, a horizontal bevel gear is arranged on one side of the vertical bevel gear, the horizontal bevel gear is meshed with the vertical bevel gear, a second horizontal shaft is arranged at one end of the horizontal bevel gear, a horizontal clamping piece is arranged at one end of the second horizontal shaft, and a first horizontal shaft is arranged at one end of the horizontal clamping piece; the first horizontal shaft is in running fit with the horizontal clamping piece; through meshing of the bevel gears between the clamping devices, the two clamping devices rotate synchronously, dislocation and deflection in the welding process are avoided, the positions and angles of the steel plates are accurately controlled, it is guaranteed that the tolerance between the steel plates meets the design requirement, and therefore the quality and performance of final products are improved.

The present application relates to the technical field of membrane method waste lithium battery recycling, and particularly relates to a membrane separation and concentration method for recovering positive electrode material of waste lithium battery and application thereof. The method comprises the following steps: mixing the positive electrode material of the waste lithium battery after discharging and disassembling with acid liquor and a reducing agent solution, and then performing heating and stirring treatment, filtering insoluble substances, and obtaining leaching liquor; pumping the leaching liquor into a primary nanofiltration membrane system for primary nanofiltration treatment, obtaining primary nanofiltration water and primary nanofiltration concentrated liquid; pumping the primary nanofiltration water into a secondary nanofiltration membrane system for secondary nanofiltration treatment, obtaining secondary nanofiltration water and secondary nanofiltration concentrated liquid; and pumping the secondary nanofiltration water into a reverse osmosis system for reverse osmosis concentration treatment, obtaining reverse osmosis water and reverse osmosis concentrated liquid. The application is the application of the method in recovering lithium ions in the positive electrode material of the waste lithium battery. The present application can efficiently, highly and at low cost recover each metal cation in the positive electrode material of the waste lithium battery.

This invention discloses a differential pressure automatic jacketing device, comprising a cylinder with a power cylinder head connected to the top of the cylinder; a hollow piston rod is disposed inside the cylinder, with a power cylinder piston and reversing device connected to one end of the hollow piston rod near the power cylinder head, and a jacketing cylinder piston connected to the other end of the hollow piston rod; a jacketing cylinder head is connected to the bottom of the cylinder; a separation sleeve between the power cylinder and the drain / jacketing cylinder, and a separation sleeve between the drain / jacketing cylinder and the jacketing cylinder are sleeved on the outer wall of the hollow piston rod, the separation sleeve between the power cylinder and the drain / jacketing cylinder being fixed to the inner wall of the cylinder by a first positioning pin; the separation sleeve between the drain / jacketing cylinder and the jacketing cylinder being fixed to the inner wall of the cylinder by a second positioning pin; the cylinder also has a power fluid inlet, a power fluid and jacketing gas outlet, and an air inlet, the air inlet being connected to the jacketing cylinder head via a pipe. This differential pressure automatic jacketing device can efficiently draw jacketing gas from the annulus and discharge it into the production pipeline, is safe and effective, and is convenient to install and maintain.

This invention relates to the field of automatic control of nitrogen valves, and particularly to an automatic control method for nitrogen valves based on intelligent sensing. First, based on the measured values ​​of the acquired original sensing variables, preprocessing is performed to obtain preprocessed measured values ​​of the sensing variables. Based on the preprocessed measured values ​​of the sensing variables, a time-varying energy consistency fusion algorithm is used to obtain the state-driven energy value of the sensing variables. Based on the state-driven energy value of the sensing variables, the contribution of the sensing variables is determined, and a fusion situation indicator is constructed. Then, based on the fusion situation indicator, a control potential energy function is constructed using a continuous potential energy-driven valve position decision algorithm. Based on the control potential energy function, the valve adjustment speed is obtained. This method solves technical problems such as insufficient utilization of multi-source sensing information, inaccurate state assessment, delayed adjustment response, and lack of effective intervention for abnormal risks.

The present application discloses a five-axis full-servo pull-out gear rack transmission mechanism, including a pull-out arm body, a transverse arch, a finished product arm and a material head arm, the transverse arch is provided with a guide rail for the pull-out arm to slide, the guide rail is provided with a cylinder for driving the pull-out arm to slide, one side of the cylinder is provided with an electric control box, the pull-out arm is provided with a finished product arm pull-out gear rack transmission mechanism and a material head arm pull-out gear rack transmission mechanism, the finished product arm is installed on the finished product arm pull-out gear rack transmission mechanism, and the material head arm is installed on the material head arm pull-out gear rack transmission mechanism. The present invention effectively reduces the cost of the entire manipulator, and is simpler and more convenient to use and maintain than a single-axis servo manipulator.

The invention provides bacillus subtillis capable of producing amylase, protease and cellulase and application of the bacillus subtillis, the bacillus subtillis is bacillus subtillis FJAT-10612, the bacillus subtillis is preserved in China General Microbiological Culture Collection Center on August 6, 2025, the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.35537. The amylase production activity of the bacillus subtillis disclosed by the invention is 166.12 U / mL, the cellulase production activity of the bacillus subtillis is 88.05 U / mL, and the protease production activity of the bacillus subtillis is 18.36 U / mL; certain tolerance to artificial gastric juice, artificial intestinal juice and cholate is achieved; when the strain fermentation liquor is used for pomace micro-storage, the content of pomace crude protein and total sugar can be remarkably increased, the cellulase activity is improved, meanwhile, the content of crude fibers, neutral detergent fibers, lignin and ammoniacal nitrogen is remarkably reduced, and an effective strain resource is provided for pomace micro-storage fermented feed.

The invention discloses a radial artery compressor, and relates to the technical field of medical instruments. The cold compress bandage comprises a bandage body, the outer wall of the bandage body is sleeved with a supporting block, the outer arc face of the supporting block is fixedly connected with a pressure meter, the pressing end of the pressure meter is fixedly connected with an air bag, the inner arc and the outer arc of the supporting block are provided with cold compress modules used for cold and heat adjustment, and the inner wall of one end of the bandage body is provided with a first hook-and-loop fastener. A second hook-and-loop fastener is arranged on the outer wall of the other end of the bandage body, the end, located on the second hook-and-loop fastener, of the bandage body is sleeved with a pressing plate, the outer wall of the pressing plate is fixedly connected with a circular ring, and the inner wall of the circular ring is in threaded connection with a threaded rod. The purposes of promoting vasoconstriction through cold compress, stopping bleeding and relieving pain are achieved, and meanwhile skin injury caused by too low cold compress temperature is avoided.

The application discloses a satellite-borne OCXO anti-radiation and micron-level debris integrated protection structure, which comprises a composite armor composed of an outer high-density polyethylene layer, a middle aluminum alloy layer, an inner high-density polyethylene layer and a circuit substrate which are stacked in sequence from outside to inside. The outer PE absorbs debris cloud energy and cooperates with radiation shielding, the middle aluminum alloy breaks micron-level debris, and the inner PE dissipates debris kinetic energy and shields secondary radiation; the circuit substrate adopts an aluminum-based PCB or a SiC substrate to improve heat conduction and anti-neutron activation capability. The application also forms a trinity protection through anti-radiation device selection and circuit redundancy error correction reinforcement. The application simultaneously realizes anti-radiation and debris protection through a set of structure, and the surface density is as low as 13.55 kg / m 2 , the SEL threshold is greater than or equal to 75 MeV·cm 2 / mg, the TID is greater than or equal to 100 krad (Si), and the target test wall is not penetrated, and the application is suitable for local fine protection of low-orbit small satellite high-precision time and frequency equipment.