30results about How to "Quick exclusion" patented technology

The invention relates to the technical field of ferrous metallurgy casting, in particular to a drainage sand removing and recycling method and device. Comprising a mechanical arm, a lifting rotation controller, a controller arm, a sand suction cylinder, a sand conveying pipeline, a sand collecting tank and an injection pump. The lifting and rotating controller is fixedly mounted on the mechanical arm; the controller arm is connected with the lifting and rotating controller, and the lifting and rotating of the controller arm are controlled by the lifting and rotating controller; the sand suction cylinder is connected with the controller arm, the sand suction cylinder is of a U-shaped structure, and one end of the sand suction cylinder is a horn mouth used for sucking drainage sand; one end of the sand conveying pipeline is positioned above the tundish cover sprue gate, and the end part of the sand conveying pipeline is bent downwards to be connected with the other end of the sand suction cylinder; the other end of the sand conveying pipeline is connected with the sand collecting tank; the sand collecting tank is connected with an injection pump pipeline, and the injection pump provides suction power. The ladle filler sand, harmful gas in gaps of the ladle filler sand and a long nozzle and a small part of molten steel in contact with the ladle filler sand in a steel ladle can be discharged out of tundish molten steel and recycled.

The utility model relates to a power supply line troubleshooting auxiliary device, which comprises a motor, a storage shell and a supporting column, and is characterized in that a rotating shaft at the output end of the motor is provided with a rotating rod; the storage shell is of a hollow structure with one open end, and the motor is detachably connected into the storage shell. The assembly shell is of a hollow structure with two open ends, and the storage shell is slidably mounted in the assembly shell; the supporting columns are arranged on the two sides of the assembling shell and movably connected with the assembling shell, and moving parts or inserting installation parts are installed at the bottoms of the supporting columns. By means of the assembling performance of the storage shell and the assembling shell and the detachable connection performance of the motor and the storage shell, the device can be transported in a separated mode, so that different technicians can carry separated parts, the problems that when the whole device is singly carried, the weight is too large, and the size is too large are solved, and the technicians can conveniently carry the device to excavate soil on a line. The device can quickly remove soil around the line, can reduce manpower output, and has good flexibility and practicability.

This invention relates to the field of crop identification technology, specifically to a UAV image recognition system for crops in karst landforms based on multi-scale features. The system includes: a feature database construction module for constructing a hierarchical crop feature database, wherein the crop feature database comprises multiple storage areas storing feature data of different crop types, each storage area containing multiple feature layers, and multiple feature layers located in the same storage area are associated with each other; an image acquisition and preprocessing module for acquiring remote sensing images of the area to be identified collected by the UAV, and performing geometric correction, spectral correction, and standardized slice preprocessing on the remote sensing images to obtain the image to be analyzed; and a feature extraction and matching module for communicating with the feature database construction module, thereby improving the efficiency and accuracy of crop type identification.

This invention belongs to the field of robotic arm technology, specifically a universal product assembly platform, including an assembly table, a robotic arm, and grippers; it also includes a detection platform, which is mounted on the assembly table. A detection plate is slidably connected to the center of the detection platform, and the detection plate is connected to an electric push rod in the detection platform. A drive block drives a drive shaft to rotate via a drive belt. Since the drive shaft and the rotating shaft are connected by bevel gears, the drive shaft drives the rotating shaft to rotate through the meshing transmission of the bevel gears. The rotating shaft drives a cleaning brush to rotate rapidly via a rotating belt. When the cleaning brush rotates and passes over the grippers, it cleans the remaining parts of the grippers. Combined with the cleaning action of the drive block, this further improves the cleanliness of the grippers, preventing residual oil and other impurities on the grippers from affecting the gripping and detection accuracy, thereby improving the gripping and detection accuracy of the robotic arm, and consequently improving the assembly accuracy of the robotic arm and the installation accuracy of the assembly platform.

The utility model relates to the technical field of trademark pasting making discloses a longitudinal cutting mechanism of trademark machine, including setting up on the support plate of frame, two the side of facing of support plate all is provided with damping bearing, the damping bearing interval is provided with longitudinal cutting shaft, the longitudinal cutting shaft all uniformly distributed has a plurality of fixed clamps, the side of fixed clamp is provided with adjusting part. The utility model discloses the trademark machine stripping waste mechanism of setting can separate the plastic film roll paper after the film coating with waste film quickly, through the slitting force generated by stripping waste piece, make when separating can reduce the tensile force, thereby avoid the plastic film roll paper when separating and drag too big, cause the plastic film roll paper damage and scrap.

The utility model relates to a waterproof flow guide blind ditch structure at the connecting place of diaphragm wall, it includes flow guide blind ditch main part, flow guide blind ditch main part sets up at the connecting place of diaphragm wall, is used for guiding the ground water flow, prevents the ground water and accumulates at the connecting place, the utility model discloses a flow guide blind ditch is established, effectively guides the ground water flow, prevents the ground water and accumulates at the connecting place, reduces the seepage risk, improves the overall waterproof performance of diaphragm wall, guarantees the engineering quality. The application still has the advantages such as convenient construction, low cost, can satisfy the efficient and economic demand of modern underground engineering construction.

The utility model relates to three -dimensional composite drainage net technical field, concretely refers to a kind of anti-clogging three-dimensional composite drainage net. Including three-dimensional composite drainage net body and mounting bracket, three-dimensional composite drainage net body includes three-dimensional net core, the top of three-dimensional net core is provided with support net, the top of support net and three-dimensional net core bottom are all provided with cloth filter layer, three-dimensional net core is by net core board, reinforcing frame, support boss one, support boss two;Mounting bracket is fixed in two cloth filter layers with three-dimensional net core, support net, and mounting bracket includes two frame grooves one and two frame grooves two, and frame groove two one side is fixedly provided with two C-shaped inserts, and two C-shaped inserts are respectively inserted in two frame grooves one one end, and the connecting place of frame groove one and frame groove two is fixed by two bolts.The utility model provides a kind of drainage and anti-clogging performance is good, structural stability and pressure capacity are enough, three-dimensional composite drainage net body and mounting bracket installation connection strength is good anti-clogging three-dimensional composite drainage net.

The present application relates to the field of dehumidification air intake system, more particularly, to an ice region ship ice prevention and drainage dehumidification air intake system, comprising a steam inlet, a steam outlet, a drainage outlet, a negative pressure cavity, a water accumulation cavity and an ice prevention and drainage dehumidification filter; the ice prevention and drainage dehumidification filter comprises a filter outer frame, guide vanes and integrated blades, the guide vanes are arranged on the filter outer frame, and the integrated blades are arranged between adjacent guide vanes in the direction of the guide vanes; an intermediate partition plate is arranged on the integrated blade, the integrated blade is divided into a steam flow channel above the intermediate partition plate and a drainage flow channel below the intermediate partition plate by the intermediate partition plate; one end of the drainage flow channel is connected with the negative pressure cavity, and the other end is connected with the water accumulation cavity; the drainage outlet is arranged on the water accumulation cavity; one end of the steam flow channel is connected with the steam inlet, and the other end is connected with the steam outlet, which can solve the problems of ice formation, water mist removal and rapid removal of melted water simultaneously, and is simple and practical.

This invention discloses a self-heating thermoelectric cabinet, comprising a mounting mechanism including a cabinet body, a base fixedly connected to the bottom of the cabinet body, and a cabinet door adapted to be installed on the outside of the cabinet body. An inner panel is fixedly connected inside the cabinet body, and a ventilation groove is formed on the outer side of the inner panel. A triggering component is also provided on the outer side of the inner panel. When the internal temperature of the equipment becomes too high, the fan blades will rotate and revolve, thereby quickly dissipating heat from the equipment. Simultaneously, the heat dissipation effectively cleans the filter plate. When the temperature drops, the baffle slides down, effectively blocking some fine particles passing through the filter plate, thus effectively improving the service life of the internal electrical components. Furthermore, the automatic heat dissipation effectively saves energy, greatly improving the practicality of the equipment.

The invention discloses a power supply based on a railway direct current remote supply system, which comprises an input unit, a remote monitoring unit, an inverter, a converter, a direct current output unit and an alternating current output unit, and is characterized in that the remote monitoring unit comprises an auxiliary power supply, an MCU, a man-machine interaction unit, a signal acquisition unit and a communication interface; the auxiliary power supply, the man-machine interaction unit, the signal acquisition unit and the communication interface are electrically connected with the MCU, the input unit is electrically connected with the auxiliary power supply, the input ends of the inverter and the converter are electrically connected with the connection point of the input unit and the auxiliary power supply, and the output end of the inverter is electrically connected with the input end of the alternating current output unit. The output end of the converter is electrically connected with the input end of the direct current output unit; wherein the signal acquisition unit is used for acquiring a current value and a voltage value of the input unit, and the MCU is used for judging short-circuit and open-circuit faults according to the current value and the voltage value, so that judgment of a single open-circuit point and a plurality of open-circuit and short-circuit points in the whole cable is realized, and fault positions can be positioned.

This utility model discloses a permeable terrazzo product, including terrazzo flooring. The terrazzo flooring is made of permeable concrete with a porosity of 15%-25%, giving it excellent permeability and allowing for rapid drainage of surface water. A supporting framework is laid under the permeable concrete; the honeycomb structure of the framework effectively distributes the load, providing excellent compressive and impact resistance, significantly improving the compressive strength of the terrazzo flooring and making it less prone to cracking under pressure. A crack-resistant mesh is laid on top of the permeable concrete; this mesh has excellent mechanical strength and helps disperse stress, effectively enhancing the surface crack resistance of the terrazzo flooring, making it less prone to cracking under pressure, and effectively improving the structural strength and permeability of the terrazzo flooring.

The application relates to the technical field of road engineering, in particular to a setting method of a highway super-high gentle section drainage system based on a longest water collection path, which comprises the following steps: field investigation; simplifying the maximum water collection path into a plane quadratic curve, taking a point where the maximum water collection path enters a water accumulation area as an original point O, taking the road center line direction of the O point as an X axis, and taking the vertical road center line direction as a Y axis to establish a plane coordinate system; determining the position of a starting point A point of the maximum water collection path; deriving a quadratic curve of the maximum water collection path according to the A point, the O point coordinates and the derivative of the maximum water collection path curve at the O point; and determining the setting angle of the water interception groove at different positions according to the longest water collection path to determine the number of water interception grooves. According to the application, the water interception groove position is determined according to the longest water collection path, the water interception groove angle is 90 DEG intersected with the maximum water collection path, water flow is collected to the maximum extent, water flow collection in the gentle section is blocked, and water accumulation is reduced.

The present application relates to a kind of for signal generator production line test calibration implementation guided fault-tolerant processing system, including process guiding module, the test calibration of signal generator whole process is decomposed into several sequentially executed steps;Intelligent fault-tolerant processing module is used for real-time monitoring and intelligent intervention in the whole cycle of operation, pre-judgment input before operation, real-time capture error in operation;State management module, application program and instrument state in test calibration process are automatically saved and breakpoint recovery.Such as the system, method, device, processor and computer readable storage medium thereof for signal generator production line test calibration implementation guided fault-tolerant processing of the present application, significantly reduce training cost and operation error rate, avoid misoperation through step-by-step guidance and embedded help, improve product quality consistency, ensure that the calibration process and standard of each signal generator are completely consistent, reduce the product performance discreteness caused by personnel operation difference.

This utility model discloses a maintenance-free apron deck, relating to the field of low-altitude airport construction technology. Its structure includes a row of decks connected side-by-side, a row of spaced supports, and water troughs installed at both ends of the deck. The supports are placed below the deck, and the deck and supports are connected by a first fastener. The water troughs are equipped with connecting plates and water-retaining grooves that overlap with the ends of the deck, and the connecting plates and water-retaining grooves are connected to the deck by a second fastener. This utility model features excellent waterproof and drainage performance, anti-slip safety, lightweight yet high strength, easy installation and maintenance of electric heat tracing systems, stable structure and convenient adjustment, a complete water guiding system, and protected cable management; overall, it improves the safety and applicability of the apron.

The utility model belongs to the field of flame -retardant fibre waste processing equipment, concretely relates to a kind of cleaning device for flame -retardant fibre waste recycling, including bottom plate, the top of bottom plate is fixedly connected with discharge water receiving groove, the inside fixedly connected with support rotating column of discharge water receiving groove, the front side and the back of support rotating column surface are all equipped with rotating sleeve, the top of rotating sleeve is fixedly connected with ultrasonic cleaning pool, the four corners of ultrasonic cleaning pool bottom are all fixedly connected with ultrasonic transducer.The utility model is equipped with electric cylinder, intercepting net and other structures on ultrasonic cleaning pool, can promote ultrasonic cleaning pool to be inclined, make the water flow in ultrasonic cleaning pool can be quickly excluded, intercepting net can shelter flame -retardant fibre waste and stay in the inside of ultrasonic cleaning pool, prevent the situation that flame -retardant fibre waste is discharged with water flow, improve the cleaning efficiency of flame -retardant fibre waste.

The utility model relates to intelligent electric energy meter technical field discloses a kind of three-phase harmonic electric energy meter circuit and electric energy meter, three-phase harmonic electric energy meter circuit includes: sampling module, measurement module, control module and display module, wherein, the input end of sampling module inputs electric signal of electric power line, and the output end of sampling module is connected with the input end of measurement module;The communication end of measurement module is connected with the communication end of control module, and the power supply end of measurement module and the power supply end of control module are all connected with external power supply;The first end of control module is connected with display module, and the communication end of control module is connected with the communication end of measurement module.The electric energy meter circuit of the utility model can display three-phase voltage total harmonic content and current total harmonic content, facilitate user to quickly exclude electric power line fault according to harmonic content data, improve troubleshooting accuracy.

The present application relates to the field of drug discovery and delivery synergy, in particular to an autonomous evolutionary drug discovery and delivery synergy method and system based on a large language model. The method comprises: for a given biological target three-dimensional structure, generating a candidate molecule library complementary to the target pocket and taking into account drugability through an SE(3) equivariant mixture generation model; screening the highest comprehensive potential molecules from the candidate molecule library according to a two-stage funnel high-throughput virtual screening process; generating a customized delivery scheme through a three-stage process; simulating the drug and carrier complex targeting delivery process and evaluating the efficiency in a simulated real in vivo tumor microenvironment digital twin model; and performing atomic-level performance verification on the drug, carrier and target three-element system through molecular dynamics simulation. The present application is suitable for drug research and development.

The utility model discloses an ejection force testing device of an automobile central control panel, which comprises an upper pressing plate, a bottom plate, a supporting plate, an ejector rod, a spring and a pressure sensor, the supporting plate is arranged on the bottom plate, the upper pressing plate is positioned above the supporting plate, the bottom end of the spring is arranged in the bottom plate, one end of the ejector rod is abutted against the top end of the spring, and the other end of the ejector rod penetrates through the supporting plate and then extends out. The pressure sensor is arranged at the contact position of the spring and the ejector rod. The push rod is arranged and can abut against a key on a central control panel of the automobile, and the pressure value of the push rod under a certain stroke can be preset through the compression amount of the spring, so that when the upper pressing plate is pressed downwards, the corresponding acting force on the key acts on the push rod, the push rod is pressed downwards to push the spring to be compressed, and the spring reacts on the push rod; through the pressure sensor, the ejection force applied to the button can be tested, products with substandard ejection force can be quickly eliminated, and the reliability and the safety of the automobile central control panel during use are ensured.

The utility model provides a building outer wall line foot drainage device of reasonable structure design has safety, durability, aesthetic property. The utility model discloses a drainage groove, fixing piece and drain pipe, the fixing piece fixed setting is on the line foot upper portion, the middle part fixed setting of fixing piece has fixing piece clamping edge, and the drainage groove clamping fixed is on fixing piece clamping edge, the middle position of drainage groove is provided with the drainage hole, and the upper surface of the part of drainage groove far from the drainage hole is high, and the upper surface of the part of drainage hole near is low, the drain pipe is embedded in the line foot, and its top stretches out line foot rear and is connected with the drainage hole, and its bottom stretches out line foot.

This utility model discloses a pantograph pneumatic control valve box, relating to the field of pantograph control technology. The control valve box includes a housing, valve plate, manual valve, check valve, pressure switch, filter, solenoid valve, manual reversing valve, and terminal block. This utility model employs the coordinated operation of the main air inlet and the electric pump air inlet, enabling the pantograph pneumatic circuit to quickly reach the required pressure. Through the cooperation of various components, it achieves automatic pantograph raising and lowering, emergency lowering, and backup air supply functions. This valve box effectively solves the problems of poor reliability and weak emergency response capability in traditional pneumatic control systems, achieving precise and stable control of the pantograph and significantly improving the stability and safety of the rail transit power supply system.

The application relates to a server and a method for processing three-dimensional graphic files in a publishing format, the server is configured to: analyze the vector angle relationship between the center point coordinates of all geometries corresponding to each three-dimensional model and the center point coordinates of the corresponding three-dimensional model; compare the vector angle relationship in at least two three-dimensional models to preliminarily determine whether the spatial layouts of the at least two three-dimensional models are the same; in the case that the layouts of the two three-dimensional models are the same, a plurality of geometries contained in the two three-dimensional models are one-to-one matched according to a preset matching rule to obtain a plurality of pairs of matched geometries; and the geometries to be compared are sequentially determined whether they are consistent with each other according to a comparison sequence. The application greatly improves the efficiency and accuracy of three-dimensional model matching and searching.

The application discloses a wind power generation system and a warning method of a wind turbine generator thereof and a readable storage medium. The method comprises the following steps: when it is monitored based on a preset detection model that a power curve of a generator of a wind turbine generator in a wind power generation system is abnormal, obtaining a rotating speed value and a power value in an abnormal period, and a wind speed value collected by a wind speed meter of the wind turbine generator in the abnormal period; generating the wind speed value and the power value into a wind power curve comparison graph, and generating the rotating speed value and the power value into a scatter comparison graph; determining a risk value and a reference repair measure of the generator according to the wind power curve comparison graph and the scatter comparison graph; generating the obtained historical warning information, the risk value and the reference repair measure of the generator into warning information, and warning the generator of the power curve abnormality. In this way, the power curve abnormality of the generator is warned in advance through the warning information, and the repair is more convenient, and the repair efficiency is improved.

The utility model relates to mechanical part cleaning technical field discloses a continuous mechanical part ultrasonic cleaning device, including box, mounting panel, ultrasonic generator, drying assembly, U plate, six sprocket, two chains, four strip board, four support buffer assembly, motor and a plurality of hooks, the mounting panel fixed mounting is in the inside wall of the front and rear two sides of box, and the both sides of box all are provided with rectangular mouth, the ultrasonic generator sets up on the box, four strip board is hinged respectively and installs in the front and rear two sides of box, the U plate sliding installation is in mounting panel. The utility model has the following advantages and effect: compact structure, function is various, not only can carry out efficient, continuous and environmental protection's cleaning operation to mechanical part, can also carry out quick drying treatment to the part after cleaning, is applicable to the mechanical part cleaning demand under a variety of industrial scenes.

The utility model provides oxidation ditch sewage treatment equipment with a sludge collection function, which relates to the technical field of sewage treatment and comprises a moving frame arranged on an oxidation ditch, a mounting frame is arranged on one side of the top of the moving frame, a driving roller and a driven roller are arranged on the mounting frame, and a filter screen belt is connected between the driving roller and the driven roller. A dirt suction mechanism is arranged at the top of the moving frame on one side of the mounting frame, a water collecting tank is arranged in the filter screen belt, and a sludge scraping and discharging mechanism is arranged below the output end of the filter screen belt; according to the utility model, the filtering mechanism consisting of the mounting frame, the driving roller, the driven roller and the filter screen belt is arranged at the top of the movable frame on the oxidation ditch, so that sludge can be quickly filtered, and the sludge intercepted on the filter screen belt can be quickly discharged when running to the sludge scraping and discharging mechanism and is synchronously guided out of equipment along with sewage treatment; the operation of equipment is not influenced by the weight of sludge, the energy consumption can be effectively reduced, and the sewage treatment efficiency is improved.

The utility model discloses a portable concrete bin surface accumulated water drainage device, which relates to the technical field of construction drainage devices and comprises a shell, an internal circuit layer, a power line storage bin, an accessory storage bin, a built-in battery area and a water pump working area are arranged in the shell, a built-in storage battery is arranged in the built-in battery area, and a water pump is arranged in the water pump working area. A built-in small self-priming pump is arranged in the water pump working area, and a PVC hose, a detachable end of the PVC hose, an adjustable plastic buckle and a portable foldable bucket are arranged in the accessory storage bin; the technology provided by the utility model can greatly improve the drainage efficiency of accumulated water on the concrete warehouse, shorten the warehouse preparation time, reduce the workload of workers and reduce the construction cost.

The application provides a data synchronization method and device, a node device and a medium. The method comprises the following steps: sending a call data to at least one second node device of a second network; receiving synchronization time information of at least one terminal in a corresponding sub-domain of the second node device, which executes the call data and is reported by the second node device; judging a target terminal in the at least one terminal which executes the call data and has a synchronization deviation according to the synchronization time information; and sending a first reference signal to a corresponding second node device of the target terminal, wherein the first reference signal is used for indicating that the target terminal executes the call data and has a synchronization deviation. By using the method, a target sub-domain which executes the call data and has a synchronization deviation is judged by a first node device of a first network, a reference signal is generated and sent to a corresponding second node device, and the second node device is indicated that the corresponding sub-domain executes the call data and has a synchronization deviation, so that a possible network fault can be found and quickly eliminated, and / or a synchronization time can be adjusted.

The invention relates to the field of personalized recommendation, and provides an Internet of Things card package recommendation method and system based on machine learning. The method comprises the following steps: acquiring equipment feature vectors of to-be-recommended equipment and package feature vectors in a full package set, and splicing the equipment feature vectors and the package feature vectors to generate a combined feature matrix; inputting the combined feature matrix into a classification model, outputting matching degree scores of a plurality of packages and the to-be-recommended equipment, and screening according to the matching degree scores to obtain a candidate package set; supplementing historical interaction features for the candidate package set, inputting the candidate package set into a fusion model, and screening according to an obtained fusion result to obtain an optimized package set; and obtaining customer demand data, performing constraint filtering on the optimized package set according to the customer demand data to obtain an individual adaptive package set, and determining a final recommended package according to the matching degree by the individual adaptive package set. According to the invention, the accuracy and efficiency of Internet of Things card package recommendation are improved.

The invention discloses a rapid document duplicate removal method and system based on multi-algorithm fusion, and the method comprises the steps: carrying out the preprocessing of a document, and generating a duplicate removal vocabulary set; performing rapid member judgment on the de-duplicated vocabulary set through a Bloom filter; generating a locality sensitive hash fingerprint and a probability signature in parallel for the document passing through the Bloom filter; constructing a zoning locality sensitive hash index, and retrieving a candidate similar document set from a document library; calculating the similarity of the title dimension, the content dimension and the metadata dimension for each candidate similar document, and performing weighted fusion on the similarity of each dimension according to a preset weight to obtain a comprehensive similarity score corresponding to the document; and comparing the comprehensive similarity score with a set similarity threshold value to judge whether the document is repeated or not according to a comparison result. Through a collaborative mechanism of coarse screening, indexing and similarity fusion decision, the calculation complexity is remarkably reduced, and meanwhile, the accuracy of large-scale document deduplication is improved.

Disclosed are a coronary microcirculation disorder prediction method, a processing device, a system and a computer readable storage medium, the method comprising: acquiring exercise electrocardiogram data and resting electrocardiogram data output by at least one electrocardiogram lead respectively, and obtaining first and second high-frequency QRS complex data respectively based on the exercise electrocardiogram data and the resting electrocardiogram data; obtaining first and second lead positive indicators based on the first and second high-frequency QRS complex data; determining whether target first high-frequency QRS complex data exists in the first high-frequency QRS complex data corresponding to the first lead positive indicator indicating positivity, the target first high-frequency QRS complex data not having a first waveform feature indicating coronary artery disease and a second waveform feature indicating myocardial bridge; and if the target first high-frequency QRS complex data exists, determining that there is a possibility of coronary microcirculation disorder. The present scheme can realize non-invasive, rapid and specific identification of coronary microcirculation disorder.

The invention provides an atomizer mask used by a prostrate patient and an atomizer, and relates to the technical field of atomization medical equipment, the atomizer mask comprises a mask body, an exhaust assembly and an air inlet assembly; the exhaust assembly and the air inlet assembly are designed in the mask body, and the air inlet assembly is fixedly suspended in the mask body and does not make contact with the skin of a patient; on one hand, atomized gas containing liquid medicine can be limited within a small range, and a patient can efficiently inhale the atomized liquid medicine; on the other hand, a gap is formed between the bottom of the air inlet assembly and the skin of the patient, air exhaled by the patient can overflow from the gap, then flows to the exhaust assembly through an exhaled air overflow channel formed between the outer side of the air inlet assembly and the inner wall of the mask body, and is exhausted from the exhaust assembly; compared with a traditional mask, damp and hot gas exhaled by a patient can be rapidly discharged, condensate water formed on the inner wall of the mask body is little, and medical staff do not need to frequently wipe and incline the mask.