430results about How to "Random combination" patented technology

The invention discloses a carbon-silicon negative electrode material and a preparation method and application thereof, and the preparation method comprises the following steps: S1, carrying out mixed reaction on a lithium source compound, a lanthanum source compound and a titanium source compound to obtain a mixed reactant; mixing the mixed reactant with a carbon source compound, and dispersing and emulsifying to obtain element-doped microspheres; s2, carbonizing the element-doped microspheres in the step S1 to obtain carbides, and activating the carbides to obtain a porous carbon material; and S3, performing silicon deposition on the porous carbon material in the S2 to obtain silicon deposition porous carbon, and performing carbon deposition on the silicon deposition porous carbon to obtain the carbon-silicon negative electrode material. The carbon-silicon negative electrode material disclosed by the invention is high in lithium ion transmission rate, the problem of poor electronic conductivity of silicon is solved, and the electrical property of a battery can be effectively improved.

The invention discloses a pharmaceutical composition, a preparation containing the pharmaceutical composition, a kit containing the pharmaceutical composition, and a preparation method and application of the pharmaceutical composition. The pharmaceutical composition comprises the following components: an active pharmaceutical ingredient and a hot melt adhesive, wherein the mass percent of the active pharmaceutical ingredients is 0.3%-50%; the hot melt adhesive is poloxamer P188 and / or poloxamer P407; the mass percent of the hot melt adhesive in the pharmaceutical composition is 5%-30%. According to the pharmaceutical composition, the preparation containing the pharmaceutical composition and the kit containing the pharmaceutical composition, the stability of the active pharmaceutical ingredients can be improved while the active pharmaceutical ingredients are rapidly released to achieve rapid effect, swallowing of a patient can be further improved, and the medication compliance of the patient in actual taking can be improved.

The invention provides a fault analysis method and system based on a knowledge graph and electronic equipment, and the method comprises the steps: obtaining the operation information of a target part, and determining a to-be-searched entity corresponding to the operation information; determining a target path corresponding to the entity to be searched in a preset knowledge graph; the knowledge graph is formed by a plurality of data paths, algorithm paths and diagnosis paths; and generating fault analysis content according to the target path. According to the invention, a fault reasoning form based on the knowledge graph is realized, deep analysis and mining can be carried out on complex fault data, comprehensive diagnosis of faults from phenomena to essence is realized, and the accuracy and reliability of fault analysis are improved.

The invention provides an FPGA online configuration method and device, a medium and a program product. The method comprises the steps that a main control chip downloads an encrypted FPGA programming file from an upper computer and stores the encrypted FPGA programming file to a specified directory; in response to equipment upgrading or power-off restarting operation, the main control chip searches a target version in a specified directory, and reads configured FPGA version information from the FPGA chip; in response to the fact that the configured FPGA version information is not matched with the target version, the main control chip erases a configuration memory corresponding to the FPGA chip and writes an FPGA programming file of the target version into the configuration memory; and in response to equipment power-on operation, the FPGA chip reads the FPGA programming file from the configuration memory for configuration in the AS mode. The invention provides a set of universal remote online configuration operation method, the operation is simple and feasible, the FPGA programming file does not need to be analyzed, and the influence of FPGA platform difference is greatly reduced.

The invention provides a hydraulic system state evaluation method and device, equipment, a medium and a program product. The method comprises the steps that an abrasion prediction model of hydraulic elements in a hydraulic system is established according to a three-dimensional fluid simulation model; inputting the operation data of the hydraulic element into the wear prediction model to obtain a wear prediction value of the hydraulic element; obtaining a health value of the hydraulic element according to the wear prediction value; obtaining a weight value of the influence of the hydraulic element on the efficiency of the hydraulic system; obtaining the health value of the hydraulic system according to the health value and the weight value of the hydraulic element; and evaluating the state of the hydraulic system according to the health value of the hydraulic element and the health value of the hydraulic system. The wear prediction model of the hydraulic element is established through the three-dimensional fluid simulation model, the wear prediction value of the hydraulic element is obtained based on the wear prediction model, and the state of the hydraulic system is evaluated according to the obtained health value of the hydraulic element and the health value of the hydraulic system, so that the cost and difficulty of data collection are reduced, and the reliability is improved.

The invention discloses a biomarker combination and application thereof in predicting bladder cancer risk. Specifically, the invention discloses application of a biomarker combination in preparation of a kit for predicting and / or diagnosing bladder cancer. The biomarker combination is composed of 76 biomarkers, and the kit comprises a reagent for detecting the expression level of the biomarkers in the biomarker combination. The biomarker combination disclosed by the invention has the advantages of high sensitivity and high specificity in predicting the risk of bladder cancer, provides favorable technical support for predicting the occurrence and development of bladder cancer, has wide scientific research value and provides great convenience for early clinical diagnosis, intervention treatment and the like.

The utility model provides a mobile console with hidden wiring. The mobile console comprises an equipment body, the adjusting mechanism is arranged on a platen of the equipment body and comprises a platen lifting assembly, a front-back moving assembly and a lifting column; the front-back moving assembly is fixedly installed in the platen, and the output end of the front-back moving assembly is connected with the lifting column capable of being adjusted in a lifting mode through a connecting frame so as to drive the lifting column to move front and back. The lifting column penetrates through a movable groove formed in the top face of the platen, and a mounting frame is fixedly connected to the top end of the lifting column. The display of the equipment body is in sliding connection with the arc-shaped sliding rail, and the arc-shaped sliding rail is fixedly connected with the mounting frame; the dust blocking mechanism can move front and back along with the lifting column, is installed in the movable groove and is connected with the lifting column in a sleeved mode. The adjusting mechanism is installed in the table plate in a hidden mode, the dust blocking mechanism is matched, the dustproof effect is guaranteed, and dust is prevented from entering a front-back moving assembly of the adjusting mechanism, the bottom of a lifting column and a connecting frame.

The invention provides a test method, a test device and a test bench for an intelligent driving system. The test method comprises the following steps: collecting original drive test data; acquiring transmission configuration data corresponding to the target test scene; target transmission data in the original drive test data is screened based on the transmission configuration data, and the target transmission data is recharged to the tested end through the Ethernet transmission gateway, so that an intelligent driving system located at the tested end can respond to the target transmission data; receiving target response data of the intelligent driving system returned by the tested end through the Ethernet transmission gateway, wherein the target response data is obtained by screening response data of the intelligent driving system based on the transmission configuration data; and testing the intelligent driving system according to the target response data to obtain a test result of the intelligent driving system. The method has low requirements on software and hardware environments of equipment, does not occupy the storage space of the domain controller, improves the test efficiency and the test accuracy, and is suitable for different projects and different intelligent driving software versions.

The invention provides a ship data verification method and system, and the method comprises the steps: obtaining a design rule corresponding to a target ship, converting the data format of the design rule into a target format, obtaining target data, and filling an initial rule template file according to the target data, according to the method, the target file is obtained, finally, the target file is imported into the three-dimensional modeling software to verify whether the model of the target ship in the three-dimensional modeling software meets the design rule, based on the verification method, rapid and accurate design rule verification can be conducted on the model in the three-dimensional modeling software, the verification efficiency is improved, and the verification efficiency is improved. And the accuracy of the verification result is improved.

The invention discloses a silicon-carbon composite material and a preparation method thereof, a negative plate, an electrochemical device and electronic equipment. The silicon-carbon composite material comprises a graphite carrier, metal particles, silicon particles and a carbon coating layer, and the metal particles are distributed on the surface of the graphite carrier; the silicon particles cover the surfaces of the metal particles; the carbon coating layer covers the surfaces of the silicon particles, and is filled in gaps among the silicon particles to be in contact with the surface of the graphite carrier; wherein based on the total mass of the silicon-carbon composite material, the mass content of the metal particles is 0.01-10 wt.%; the mass content of the silicon particles is 0.2 wt%-30 wt%; wherein the particle size of the silicon particles is 1 to 1000 nm. The silicon-carbon negative electrode material provided by the invention has good conductivity, and can effectively improve the fast charge performance and cycle performance of the battery.

The utility model discloses a sealing ring and an electric connector including the same, the sealing ring comprises an installation part and an abutting part, the installation part is used for being installed and connected on a first electric connector, the first electric connector is used for being matched with a second electric connector to realize electric connection, and the abutting part is used for abutting against the second electric connector. One side of the abutting part is connected to the mounting part, the other side of the abutting part is used for abutting against the second electric connector, and when the first electric connector is electrically connected with the second electric connector, a sealed hollow cavity is formed between the abutting part and the mounting part. Therefore, the sealing ring always forms sealing thrust on the first electric connector and the second electric connector, and the sealing effect of the electric connectors is improved. The compression ratio can be increased through the sealed hollow cavity, the permanent deformation coefficient of the sealing ring is increased, and therefore the durability of the sealing ring is improved; meanwhile, the rigidity requirement for installing the electric connector is reduced, and the service life of the sealing ring is prolonged.

The invention provides a voltage clamping circuit and a bidirectional level shifter comprising the same, and relates to the field of integrated circuit design. The circuit comprises a first phase inverter, a first transistor and a first diode, the first transistor is an NMOS, the input end of the first phase inverter is connected with an enable end, the power supply end is connected with a first power supply, the output end is connected with the grid electrode and the drain electrode of the first transistor, the source electrode of the first transistor is connected with a second power supply, and the drain electrode is used for outputting low level when the enable end outputs low level. And the anode of the first diode is connected with the substrate of the first transistor, and the cathode of the first diode is connected with a second power supply. By using the circuit of the NMOS transistor and the phase inverter, the stable grid bias voltage can be provided for the NMOS transmission tube, and the bias voltage change caused by power supply fluctuation, temperature change or process deviation can be reduced, so that the stability and the reliability of the circuit are improved; the first diode can avoid current consumption when the enable is turned off.

The utility model discloses an eyeshade for multi-acupoint traditional Chinese medicine physiotherapy. An eyeshade for multi-acupoint traditional Chinese medicine physical therapy comprises an eyeshade base body, and the eyeshade base body comprises an eyeshade body and a fixing band used for being fixed to the head. The cover body is provided with an eye exposure opening used for exposing eyes, a temple exposure opening used for exposing temples and an imprint acupoint exposure opening used for exposing imprint acupoints. The eye exposure opening is detachably connected with a first traditional Chinese medicine physiotherapy patch; the temple exposure openings are detachably connected with second traditional Chinese medicine physiotherapy patches; a third traditional Chinese medicine physiotherapy patch is detachably connected to the Yintang acupoint exposure opening; the first traditional Chinese medicine physiotherapy patch comprises a first traditional Chinese medicine layer and a first self-heating layer which are arranged inside and outside; each of the second traditional Chinese medicine physiotherapy patch and the third traditional Chinese medicine physiotherapy patch comprises a second traditional Chinese medicine layer, a second volatile stimulation medicine layer and a second self-heating layer which are sequentially arranged from inside to outside. According to the utility model, different traditional Chinese medicine physiotherapy patches can be respectively and selectively covered at different acupuncture points.

The invention provides a web live broadcast high-quality stream pushing system. The system comprises a video acquisition module; the video coding module uses H.264 + coding, and the video coding module is connected with the video acquisition module; the front end is connected with the rear end streaming media server through the video stream pushing module; the back-end streaming media server is connected with the content distribution network, and the back-end streaming media server distributes the processed video stream to the content distribution network; the video playing module is connected with the front end so as to play a video; and the interactive function module is integrated with a WebSocket. A low-delay and high-reliability real-time interaction function is realized on the basis of WebSocket; by using a WebSocket two-way communication function, the occupation consumption of network bandwidth in a live broadcast process is reduced; and an H.264 + coding algorithm is adopted, so that higher compression efficiency and better image quality are realized.

The invention discloses a trench gate silicon carbide MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) device and a manufacturing method thereof, and relates to the technical field of power semiconductor devices. An epitaxial layer is arranged on the substrate, and a drain electrode is arranged below the substrate. The gate trench is arranged above the epitaxial layer, the two sides of the gate trench are multi-stage gate trench integration regions, and the interlayer dielectric and the source electrode are arranged on the gate trench integration regions. Polycrystalline silicon and gate media are arranged in the gate trenches, the multi-stage gate trench integration region comprises a connection region, the multi-stage gate trenches and a current expansion layer, a shielding layer is arranged at the bottom, and the polycrystalline silicon and the gate media are arranged in the multi-stage gate trench integration region. The source electrode is connected with the drain electrode through the connecting region and is isolated from the multi-stage gate trench through the interlayer dielectric, the shielding layer is of the second conduction type, and the rest are of the first conduction type. When the device is blocked, the electric field at the gate dielectric is reduced by applying zero or negative gate voltage, and the JFET effect is inhibited by applying positive gate voltage when the device is conducted, so that the conduction capability is improved, and the loss is reduced. During avalanche, the multi-stage groove structure moves down a breakdown point, the heat transfer path is prolonged, metal melting is delayed, and avalanche robustness is enhanced.

The invention discloses a hard carbon material, a preparation method and application thereof and a secondary battery. The preparation method comprises the following steps: mixing halogen-containing polymer powder and thermoplastic resin, heating and smelting, and cooling to obtain a mixture; mixing the mixture with a reducing metal, and carrying out heating dehalogenation at 100-400 DEG C for 2-12 hours under the protection of inert gas, so as to obtain a dehalogenation sample; washing, drying and carbonizing the dehalogenated sample to obtain a hard carbon material; the thermoplastic resin is polypropylene and / or polyethylene; when the reducing metal is alkali metal, the molar ratio of halogen atoms in the halogen-containing polymer powder to the reducing metal is 1: (1-3); when the reducing metal is alkaline earth metal, the molar ratio of halogen atoms in the halogen-containing polymer powder to the reducing metal is 1: (0.5-1.5). The preparation method can realize high value-added utilization while realizing pollution-free treatment of the halogen-containing polymer waste, and has the advantages of high efficiency, environmental protection, greenness, energy conservation and the like.

The utility model provides a slurry filter press which comprises a fixed frame, a baffle is fixedly mounted at the left end of the fixed frame, a feeding pipe is fixedly communicated with the side surface of the baffle, and a mounting rack is fixedly mounted on the top side of the right end of the fixed frame; the guide part is mounted between the baffle plate and the mounting frame, and the guide part is fixedly connected with the filtering unit; the buffering part is fixedly mounted on the side surface of the bottom end of the filtering unit; and the driving assembly is fixedly mounted on the side surface of the fixed frame. Under the cooperation of a driving assembly and a buffer part arranged on the filter plate after filter pressing, separation between adjacent filter plates can be conveniently realized, the filter plates can be conveniently vibrated, mud cakes in extrusion cavities in the filter plates can be conveniently separated, the separation effect of the mud cakes is improved, and the labor intensity of workers is reduced; and the separation and mud cake cleaning efficiency of the filter plate after filter pressing of the mud cake is improved.

The invention provides a pan slipping detection method and a range hood and stove linkage device and system.The pan slipping detection method comprises the steps that N distance values between N measuring points on the outer side face of a pan and a stove horizontal plane of a stove are obtained, and the current circular plane area corresponding to the N measuring points is obtained based on the N distance values, and based on the preset circular plane area and the current circular plane area, determining whether the cookware on the cooker slips or not. The sliding pot detection method is simple and reliable, the accuracy of sliding pot detection is improved, and the use safety of a user is ensured; meanwhile, the cooker and the range hood are linked through the pan slipping detection method, a series of safe handling operations after pan slipping of the cookware can be intelligently achieved, and safe and reliable products are provided for users.

The utility model provides a dual-purpose anti-leakage enema and excrement collecting device. The dual-purpose anti-leakage enema and excrement collecting device comprises an enema bag, an infusion tube, an exhaust tube, an excrement collecting tube, an exhaust assembly and an anti-leakage assembly. The infusion tube is fixedly connected to the bottom of the enema liquid bag; the exhaust pipe is communicated with the outer wall of one end of the infusion pipe; the excrement collecting tube is communicated with the outer wall of the other end of the infusion tube; the exhaust assembly is arranged on the exhaust pipe; and the anti-leakage assembly is arranged on the infusion tube. According to the dual-purpose anti-leakage enema and excrement collecting device, through the structural design of the enema bag, the infusion tube, the exhaust tube, the excrement collecting tube, the exhaust assembly and the anti-leakage assembly, the enema function and the excrement collecting function are well combined, when enema is conducted on a patient suffering from abdominal distension, gas in the intestinal tract can be conveniently exhausted, leakage in the enema process is reduced, and the enema effect is improved. Leakage can be conveniently adsorbed, and the enema effect is good.

The present invention relates to a training device (50, 100, 200, 300) for surgical procedures for endovascular treatment of aneurysms, comprising: a container (52) having a wall (54) defining a confined chamber (56) and a first access opening (58) in the wall (54), the first access opening (58) configured to allow insertion of a guidewire (17) and / or a guide catheter (26) for endovascular surgery into the container (52); a first tube (62) connected to the container (52) at the first passage opening (58); and a movable element (70) comprising a target (72, 172) and a control member (74) connected to the target (72, 172). The target (72, 172) is disposed within the container (52) and includes a gantry (84, 184) configured to receive the guidewire (17) and / or the guide catheter (26) for endovascular surgery, and the control member (74) at least partially protrudes out of the container (52) through a control opening (76, 82, 83) of a wall (54) of the container (52). A movable element (70) is movably constrained to a wall (54) of the container (52) at the control opening (76, 82, 83) to enable the target (72, 172) to assume a plurality of different positions and / or orientations within the container (52). The invention also relates to a surgical procedure training method for the endovascular treatment of aneurysms, in which such a training device (50, 100, 200, 300) is used, and to the use of the device (50, 100, 200, 300) in the training method.

The invention provides a casting process of a diaphragm disc, which comprises the following steps of: mold making: preparing a plurality of diaphragm disc casting wax molds and four riser wax molds through low-temperature wax; the multiple diaphragm disc casting wax molds are stacked, assembled and bonded through the corresponding inner sprues to form a whole, and then the four riser wax molds are bonded to the corresponding inner sprues of the uppermost diaphragm disc casting wax mold; shell making: coating and shell making are carried out on the module after tree assembling and bonding by a shell making mechanism; dewaxing: dewaxing by adopting a steam kettle; roasting: putting the raw materials in a roasting box with a dead head facing downwards, and roasting the raw materials; pouring, wherein a pouring ladle is aligned with the dead head for pouring; cleaning sand, namely cleaning sand with an electric pick; four risers are removed through gas cutting; carrying out quenching and tempering treatment on the casting; and finishing is conducted, and burrs and flashes are removed. Compared with the prior art that a module with only one diaphragm disc casting wax mold is formed, the module with the multiple diaphragm disc casting wax molds is formed, the production efficiency is greatly improved, and the product yield is increased.

The invention provides an image detection method, system and device, a medium and a program product. The image detection method comprises the following steps: inputting a to-be-detected image into an image character classification model, and screening to obtain a first image without artificially added characters in the to-be-detected image; wherein the image character classification model is obtained based on ResNet model training. According to the invention, based on the image character classification model, the live-action image classification model and the spliced image classification model which are obtained through independent training of the ResNet model, the first image, the second image and the third image in the to-be-detected image can be obtained through screening in sequence, and the visual effect requirements of no artificial addition of characters, non-live-action images and non-spliced images are met at the same time. Images which do not have attraction and are low in value are screened out, images with potential business infringement risks are avoided, and potential losses of companies are reduced; and meanwhile, a super-resolution image can be reconstructed through the image quality improvement model, so that the visual quality and competitiveness of the image are greatly improved.

This invention discloses a centrifugally driven electromagnetic regulating device, a fan, and a gas water heater. The centrifugally driven electromagnetic regulating device includes a centrifugal diaphragm and a base connected to the fan shaft. The base has an inner cavity with a ventilation opening. The centrifugal diaphragm is movably disposed in the inner cavity and is used to block the ventilation opening. The fan shaft rotates to drive the base and the centrifugal diaphragm to rotate together. The centrifugal diaphragm moves in the inner cavity under centrifugal force to change the area of ​​its blocking of the ventilation opening, thereby changing the ventilation area of ​​the ventilation opening. This invention cleverly utilizes centrifugal force as the source of power for the centrifugal diaphragm to slide relative to the inner cavity of the base, so as to adjust the position of the centrifugal diaphragm at the ventilation opening in the inner cavity of the base. The transmission process does not use components with large mass, so the overall inertia is small. The centrifugal diaphragm can sensitively respond to changes in rotational speed and flexibly change its position blocking the ventilation opening.

This disclosure provides a reference current generation circuit for tracking word line voltage and a non-volatile memory. The reference current generation circuit includes a voltage clamping circuit, and a correction voltage adjustment circuit, a read operation current generation circuit, and a current mirror circuit electrically connected to the voltage clamping circuit. The correction voltage adjustment circuit is used to receive an input voltage and generate a correction voltage under the drive of the input voltage. The voltage clamping circuit clamps the voltage at the correction voltage based on a negative feedback loop. The read operation current generation circuit receives the read operation voltage of the memory cell in the non-volatile memory and generates a read operation current matching the read operation transconductance of the memory cell based on the read operation voltage and the correction voltage. The current mirror circuit mirrors the read operation current to generate and output a reference current that tracks the word line voltage. This disclosure avoids the risk of voltage stress and ensures sufficient current margin when the word line voltage changes, effectively improving read operation accuracy and read speed.

The application provides a water heater control method, system, device and storage medium, the control method comprising: obtaining the outlet water temperature of the water heater, if the outlet water temperature is less than the preset temperature, starting the circulation heating process; obtaining the theoretical heat provided by the water heater from starting the circulation heating to ending the circulation heating; obtaining the actual heat provided by the water heater from starting the circulation heating to ending the circulation heating; determining the circulation heating efficiency according to the theoretical heat and the actual heat; resetting the preset temperature according to the circulation heating efficiency to control the water heater to start the next circulation heating process. The application determines the theoretical heat and the actual heat by executing the circulation heating process to further determine the circulation heating efficiency. Then, the preset temperature is adjusted according to the circulation heating efficiency, the heat preservation effect of the circulation pipeline is intelligently identified by adjusting the preset temperature, the zero-cold-water circulation start-stop condition is intelligently adjusted, so that the water temperature is comfortable, and energy consumption is reduced.

The utility model belongs to the technical field of airbrush holders, and particularly discloses a combined airbrush holder convenient to disassemble, which comprises a shell, and mounting components are arranged on two sides of the shell; the installation assembly comprises two L-shaped blocks, the two L-shaped blocks are fixedly connected with one side of the shell, two clamping grooves are formed in the end, away from the L-shaped blocks, of the shell, the two clamping grooves are connected with the corresponding L-shaped blocks in an inserted mode respectively, the end, close to the L-shaped blocks, of the shell is fixedly connected with a connecting pipe, and the side, away from the L-shaped blocks, of the shell is fixedly connected with an inserting hole. The connecting pipe is connected with the inserting hole in an inserted mode, one end of the inserting hole is fixedly connected with a connecting ring, a sealing ring is arranged in the connecting ring, and one end of the connecting pipe is located in the connecting ring and makes contact with the sealing ring. And only one nozzle needs to be detached for replacement, so that the downtime is reduced, and the working efficiency is improved.

The utility model provides a rubber rod antenna threaded interface screwing device which comprises a screwing gear ring and a fixing shaft connected to the inner side of the screwing gear ring. The screwing assembly is arranged on the outer side of the fixing shaft, the screwing assembly can rotate around the fixing shaft, and the screwing assembly is used for screwing the rubber rod antenna threaded interface; the fixing frame is slidably connected with the upper side and the lower side of the screwing gear ring, and the fixing frame is used for supporting the screwing gear ring; and the power assembly is installed on the fixing frame, the power assembly is in transmission connection with the screwing gear ring, and the power assembly is used for providing driving force for rotation of the screwing gear ring. According to the utility model, the number of rotation turns of the screwing assembly can be determined by determining the rotation time of the power assembly, so that the screw-in depth can be determined, a plurality of threaded pieces and the like can be conveniently kept at the same screw-in depth when the rubber rod antenna is installed, the stability of the rubber rod antenna is improved, and the installation quality of the rubber rod antenna is improved.

The invention provides a noise reduction control method, system and device of an extractor hood, a medium and an intelligent household electrical appliance, and the noise reduction control method comprises the steps that experimental modal parameters corresponding to all orders of volute parts under initial material information are obtained; calculating simulation modal parameters; error information of all orders of any volute part is obtained; responding that the error information is smaller than or equal to preset error information, and determining that volute parts in the range hood meet the noise reduction standard; when the error information is larger than preset error information in response, volute parts corresponding to the error information and corresponding order information are obtained; and optimizing the initial material information of the volute part based on a preset optimization function until the preset optimization function meets a preset standard, so that the volute part in the range hood meets a noise reduction standard. Through the noise reduction control method provided by the invention, the material information corresponding to the volute part can be quickly obtained, and the noise reduction standard is met.

The utility model provides cloth car, including the car board, long baffle and short baffle, car board top is provided with a plurality of long baffle of symmetry distribution before and after and a plurality of short baffle of symmetry distribution left and right, link assembly, two long baffles adjacent up and down and two short baffles adjacent up and down are connected through link assembly, lift control assembly, two link assemblies of long baffle and short baffle adjacent one end are all connected with lift control assembly, synchronous control assembly, lift control assembly bottom respectively with synchronous control assembly transmission connection. The utility model discloses utilize long baffle and short baffle to carry out the blocking, protection to the material on cloth car, prevent the material from falling out when cloth car shakes with the ship, so as to be convenient for cloth car to move on the ship, utilize single synchronous control assembly to control synchronous control multiple lift control assembly operation simultaneously, thereby drive multiple long baffles and short baffles to run simultaneously, make long baffle and short baffle height adjustment more simple.

The utility model discloses a hollow fiber membrane component, which belongs to the field of hollow fiber membranes, and comprises a water collecting pipe, support columns, an aeration main pipe, aeration branch pipes, an external thread pipe and a hollow fiber membrane piece, the support columns are fixed on the left side and the right side of the top of the aeration main pipe, and the water collecting pipe is fixed at the top ends of the support columns. The bottom of the water collecting pipe is fixedly communicated with a plurality of external threaded pipes, the top of the hollow fiber membrane part is in threaded connection with the external threaded pipes, the bottom end of the hollow fiber membrane part is a free end, the free end is located above the aeration main pipe and can freely swing, the top of the aeration main pipe is fixedly communicated with a plurality of aeration branch pipes, and the aeration branch pipes extend upwards. The aeration main pipe is arranged between the two adjacent hollow fiber membrane pieces and / or in the hollow fiber membrane pieces, and is communicated with external aeration equipment. According to the utility model, the hollow fiber membrane piece can be detached and replaced, and the whole equipment does not need to be replaced, so that more resources and cost are saved.