142 results about "Airway structure" patented technology

The utility model discloses a foil winding air passage structure of a dry-type transformer, which comprises an outer ring and an inner ring, and a support piece is arranged between the inner ring and the outer ring. The number of the supporting pieces is multiple, and an air channel is formed between any two adjacent supporting pieces. The supporting piece comprises a first plate body and a second plate body, and a first elastic part and a second elastic part are arranged between the opposite faces of the first plate body and the second plate body. On the basis, after the supporting piece is mounted in the air channel, the first plate body is in contact with the inner wall of the outer ring, the second plate body is in contact with the outer wall of the inner ring, and the two elastic parts are used for opening the two plate bodies, so that the inner ring and the outer ring are supported, and meanwhile, the two elastic parts can guarantee normal flowing of air flow.

The utility model discloses an ink box with an air passage structure, and aims to provide the ink box with the air passage structure, which is good in ink leakage prevention effect. The ink cartridge comprises an ink cartridge body, the ink cartridge body is provided with an ink outlet, an ink cavity is arranged in the ink cartridge body, an air channel structure in a circuitous path is arranged in the ink cavity, the air channel structure is located at the upper end, the lower end, the left end and the right end in the ink cavity, and the air channel structure comprises an ink blocking cavity. A plurality of storage cavities sequentially communicate with the interior of the ink blocking cavity, the storage cavities are sequentially arranged in a staggered mode in the direction from the left end to the right end of the ink cavity, the inner side of each storage cavity communicates with the inner side of the adjacent and staggered storage cavity, and the storage cavities communicate with one another to form a first air channel; the tail end of the first air channel is communicated with the outside of the ink box body. The ink box is applied to the technical field of ink boxes.

The invention relates to the technical field of electric tools, and provides a suction cup sealing structure which is characterized in that the circumferential edge of the outer ring of an annular sealing part protrudes towards one side to form a first flange part, and a second flange part is formed on the side, in the same direction as the first flange part, of the circumferential edge of the inner ring; a plurality of through holes are formed in the annular face between the first flange part and the second flange part, and a supporting part is embedded in the first flange part. An annular protruding lip edge is arranged on the side face, facing the first flange part, of the through hole, and when the sealing disc is attached to the annular face, the air guide holes in the sealing disc are communicated with the overlapped part of the through hole. And a certain distance and a certain gap are kept between the sealing disc and the annular surface by the convex lips in the other through holes, so that an air passage is formed. The invention further provides the intelligent suction cup, the sealing disc is directly communicated with the through hole through the air guide hole, the sealing adsorption performance is improved through circumferential equal-interval layout, a smooth air channel is formed by ingeniously utilizing an existing structure, the structure is compact, and later disassembly and maintenance work is more convenient.

The invention relates to the technical field of soft body robots, in particular to a logarithmic spiral bidirectional bending pneumatic soft body actuator and a soft body robot, the bidirectional bending pneumatic soft body actuator comprises an elastic body and a deformation limiting layer, the elastic body comprises an air hole structure, a fixing structure and a deformation structure which are connected in sequence; the interiors of the air hole structure, the fixing structure and the deformation structure are communicated to form an air channel structure; the air hole structure is communicated with an external air source, and the deformation structure is in a logarithmic spiral shape initially; and the deformation limiting layer is adhered to one side of the maximum outer cambered surface of the deformation structure and is used for limiting the deformation of one side, adhered by the deformation limiting layer, of the elastic body. A deformation structure in the bidirectional bending pneumatic soft body actuator adopts biological bionic design and is in a logarithmic spiral shape, and the bidirectional bending pneumatic soft body actuator has bidirectional bending capacity, high flexibility and better adaptability to a target object.

The invention discloses a device and a method for testing mechanical properties of a micro sample in a high-temperature and high-pressure hydrogen environment, and belongs to the technical field of testing of mechanical properties in a hydrogen environment, the device comprises a temperature control system, a hydrogen-present micro sample clamp, a high-pressure hydrogen circulating system and a mechanical loading system, a gas standing cavity is arranged in the hydrogen-present micro sample clamp, and the gas standing cavity is of an inverted T-shaped gas passage structure; the upper opening of the gas standing cavity is used for placing a sample, and the openings at the two ends of the gas standing cavity are respectively connected with a high-pressure hydrogen circulating system through pipelines, so that high-pressure hydrogen can circularly flow, the concentration of the hydrogen in contact reaction with the sample is maintained in a stable range, and the volume of the hydrogen in the gas standing cavity is relatively small; the use cost and the explosion risk are effectively reduced, meanwhile, the temperature rising speed is increased, in addition, hydrogen only makes contact with the gas standing cavity and does not make contact with other positions of the hydrogen-containing micro-sample clamp, the contact reaction area is small, and the service life of the hydrogen-containing micro-sample clamp is effectively prolonged.

The utility model discloses a heating atomization aromatherapy machine which comprises a shell and a transparent upper cover, a smoke buffer cavity is arranged in the transparent upper cover, the transparent upper cover covers the upper end of the shell, a control panel, an atomization smoke cartridge and a blowing fan are arranged in the shell, aromatherapy materials are contained in the atomization smoke cartridge, and the atomization smoke cartridge can heat and atomize the aromatherapy materials. The upper end of the shell is provided with a smoke outflow hole, the smoke outflow hole is communicated with the smoke temporary storage cavity and the atomization air channel, the other end of the atomization air channel is communicated with an air outlet of the blowing fan, the shell is provided with an air inlet hole, the air inlet hole is communicated with an air inlet of the blowing fan, and the transparent upper cover is provided with a mist outlet hole. And the fog outlet hole is communicated with the smoke buffer cavity. According to the aromatherapy machine, only one blowing fan and one air channel are needed, the structure is more reasonable, the mechanical structure of the aromatherapy machine is simplified, the overall assembly difficulty of the aromatherapy machine is reduced, the efficiency is improved, and the manufacturing cost of the aromatherapy machine is also reduced.

The invention discloses a spiral portable breathing machine which comprises a machine body, an air supply mechanism used for forming a turbine drive type air supply structure, a ventilation mechanism used for forming a spiral air channel structure and a mask mechanism used for forming a buffer type mask structure. The air supply mechanism is arranged in the machine body, the ventilation mechanism is arranged on one side of the air supply mechanism, and the mask mechanism is assembled on the upper portion of the machine body corresponding to the ventilation mechanism. A spiral air channel structure is adopted, the venturi principle is utilized, air can be accelerated to improve the air filtering efficiency and the air supply effect of the breathing machine, the mask mechanism is arranged and provided with a buffering assembly, high-speed air exhausted by the ventilation mechanism can be buffered to achieve the slow air supply effect, and the breathing comfort of a user is improved.

The utility model discloses a microphone oil-proof air channel structure, a microphone assembly and an atomization device, and relates to the technical field of atomization, and the microphone oil-proof air channel structure comprises a microphone carrier; the microphone carrier is provided with a microphone installation groove used for installing the microphone piece. One end of the microphone air passage is communicated with the microphone mounting groove, and the other end of the microphone air passage is communicated with the outside of the microphone carrier; the microphone air channel is a labyrinth type air channel. The microphone air passage is designed to be the labyrinth type air passage, compared with a traditional straight-through type air passage design, even if a small amount of aerogel enters the microphone air passage, due to the fact that the microphone air passage is the 3D labyrinth type air passage, energy can be gradually consumed in the moving process of the aerogel, the aerogel is condensed into small liquid drops through the side wall on the way, and therefore the aerogel can be effectively prevented from being damaged. The probability that the aerogel directly enters the microphone mounting groove to be attached to the surface of the microphone piece is greatly reduced, so that the function of protecting the microphone piece is achieved, and the situation that the microphone piece is automatically started or does not work is reduced or avoided.

The invention relates to the technical field of medicines, in particular to medical application of a kedilao extract. The invention discloses the medical application of the kedilao extract for preventing, relieving and / or treating allergic asthma for the first time. The kedilao extract can reduce inflammatory cell infiltration, improve airway structure damage and improve airway wall thickening; the secretion of Th1 type cytokines is improved, the secretion of Th2 type cytokines is reduced, and the effect of obviously relieving asthma is achieved. Compared with an existing medicine for treating asthma, the kedilao extract is safer, more effective, milder and lasting, the action mechanism is multi-target and multi-effect, and the situation that a single-target medicine generates strong drug resistance is avoided. Therefore, the kdilao extract has considerable development and utilization values in the aspect of relieving and treating the allergic asthma.

The application discloses an air passage structure and an electronic atomizer. The air passage structure comprises a plate body, a communication hole, a communication channel, a first air outlet and a second air outlet. The plate body comprises a first plate surface and a second plate surface facing away from each other. The communication hole, the first air outlet and the second air outlet are respectively arranged in the plate body and penetrate through the first plate surface and the second plate surface. The communication hole is used for communicating with the outside atmosphere. The communication channel is formed in the first plate surface and / or the second plate surface. The first air outlet is used for communicating with a suction nozzle of the atomizer. The communication hole, the communication channel and the first air outlet are sequentially connected to form a first air passage capable of connecting and awakening a sensing component of the atomizer. The second air outlet is used for communicating with a mist suction channel of the atomizer and the outside atmosphere. The second air outlet is connected to the first air outlet. The air passage structure can improve the sensitivity of awakening the sensing component to start.

The invention relates to an air passage structure of an atomizing device, which comprises a shell and an atomizing core, and is characterized in that the shell is provided with at least one substance storage passage and at least one air passage; and the at least one substance storage channel and the at least one gas channel are mutually independent. According to the atomization device, the substance storage channel and the air channel are independent of each other, so that the atomized substance flowing out of the atomization device is separated from the substance storage channel, a user can suck the atomized substance after atomization, the atomized substance to be atomized cannot be sucked in, and the atomization device is safe and sanitary. In addition, when atomized substances are injected into the substance storage channel, the channel opening of the substance storage channel may be polluted. In addition, due to the fact that the substance storage channel and the air channel are independent of each other, a user can avoid a channel opening of the polluted substance storage channel and cannot make contact with the channel opening of the polluted substance storage channel, and safety and sanitation of the atomization device are further guaranteed.

This utility model relates to the field of laser welding technology, specifically disclosing a laser welding gun and laser welding equipment with a gas channel structure. The welding gun includes a working part and a gun barrel. The working part has a gas supply channel with an inlet at its input end, which is connected to a gas source. The working part has an output port connected to the gas source, and the output end of the gas supply channel is connected to the output port via an outlet channel, which connects the gas supply channel and the output port. The gun barrel is detachably connected to the working part, and the output port is connected to the input end of the gun barrel. This welding method solves the problem of potential impact damage to externally located gas channels, improves the structural stability, durability, and operational safety of the equipment, and ensures welding quality and energy transfer efficiency.

The utility model relates to the technical field of aerosol atomization, provides an atomization device and an atomizer shell, and aims to solve the technical problem of unreasonable structural design of an air passage of electronic atomization equipment. The atomization device comprises a shell, an air channel piece and an atomization assembly, the shell is provided with an air inlet hole, the air channel piece is arranged in the shell in the axial direction of the air inlet hole, and the atomization assembly is arranged in the shell. The air channel piece is provided with an air channel, the air channel extends in the axial direction of the air inlet hole, an inlet of the air channel is opposite to the air inlet hole, and an outlet of the air channel is opposite to an inlet of the atomization assembly, so that external airflow directly flows into the atomization assembly along the air channel to be atomized. When external airflow flows into the shell from the air inlet hole, the external airflow can directly flow into the atomization assembly in the air channel in the axial direction of the air inlet hole to be atomized, the distance of the external airflow flowing into the atomization assembly is greatly shortened, and therefore it is ensured that the external airflow can be supplied to aerosol matrixes in time to be atomized.

The utility model relates to an aerosol generating device which comprises a shell, a suction nozzle and a filter tip, wherein the suction nozzle and the filter tip are used for a user to suck; a heating cavity is formed in the inner side of the shell, and an air channel structure is arranged on the shell. The air passage structure is communicated with the heating cavity and is configured to be detachably connected and communicated with one of the suction nozzle and the filter tip; when the air passage structure is connected with the suction nozzle, aerosol generated by the heating cavity is output through the suction nozzle; when the air channel structure is connected with the filter tip, aerosol generated by the heating cavity is filtered by the filter tip and output. According to the aerosol generating device, the air channel structure, communicated with the heating cavity, on the shell is configured to be detachably connected and communicated with one of the suction nozzle and the filter tip, and then the suction nozzle or the filter tip can be selected to be connected with the air channel structure according to user requirements. The aerosol generating device has the advantages of being convenient to use, wide in application range and high in user experience.

The invention relates to a device and a method for preparing polycrystalline silicon carbide, polycrystalline silicon carbide and application thereof. The apparatus comprises: a crucible; the graphite substrate is arranged on the crucible and is positioned at the upper part of the crucible; the air channel structure is arranged in the crucible and is used for introducing air into the crucible; the baffle is arranged in the crucible, a gap is formed between the baffle and the graphite substrate, a projection covers the graphite substrate, and a gap is formed between the baffle and the bottom wall of the crucible; and the heater is arranged in the crucible and is lower than the baffle. The device can be used for manufacturing polycrystalline silicon carbide with low resistivity.

The invention provides a respiratory tract normalization model construction method and system based on a medical image, and relates to the technical field of medical image modeling, and the method comprises the steps: obtaining an airway segmentation result of a target group chest CT image, and obtaining a volume median model as a reference model; performing affine registration on other models by taking the reference model as a target to form a preliminary registration model group; a sample subset is selected from the sample subsets for nonlinear deformation registration, and a precise registration model set is obtained; then, superposing the fine registration model group and the reference model to generate an airway occurrence probability graph, and calculating a spatial adaptive threshold graph according to the spatial consistency of airway skeletons of the fine registration model group and the reference model; and finally, voxels with probability values higher than corresponding threshold values are extracted to generate a normalized respiratory tract model, statistical shape modeling is performed in combination with the fine registration model group, and a main variation mode of the airway form of the target group is extracted, so that standardization of the airway structure of the target group can be realized, a basic template is provided for group comparison, disease recognition and the like, and main variation of the form is quantified.

The invention relates to the technical field of aerosol generating devices, and discloses an air passage structure and an aerosol generating device. According to the air passage structure provided by the invention, the flow guide surface is arranged between the inlet of the main air passage and the confluence cavity, and the flow guide surface is gradually shrunk, so that air flow can smoothly enter the main air passage through the flow guide surface after being converged in the confluence cavity and changing the flow direction, and the converged air flow is prevented from directly impacting a sharp edge or a right-angle turning area in an original structure; and the phenomena of airflow separation, violent vortex and flow velocity sudden change caused by sudden airflow blocking and sudden direction change are improved, so that the aerodynamic noise is reduced. Meanwhile, due to the gradual shrinking design of the flow guide face, airflow can stably enter the main air channel in an accelerated mode, flow resistance and energy loss are reduced, suction resistance is reduced, and the suction smoothness degree of a user is improved.

The utility model discloses a hand -held oxygen generator's integrated type air intake subassembly of oxygen generating equipment field, including air flue board, first solenoid valve and second solenoid valve, be equipped with air intake passage, connecting channel and exhaust passage on air flue board, the number of connecting channel is two, is connected with air intake passage and exhaust passage through first solenoid valve and second solenoid valve respectively, when the power of first solenoid valve and second solenoid valve is off, corresponding connecting channel is communicated with air intake passage, when the power is on, corresponding connecting channel is communicated with exhaust passage. The utility model discloses through the structural design to air intake passage, connecting channel and exhaust passage, make two molecular sieve tank share air intake passage and exhaust passage to reduce the air flue number, make the structure more compact and simple, and under the cooperation of solenoid valve and air flue structure, when the equipment is in the closed state, the air intake end of two molecular sieve tanks is cut off with outside through air flue board and solenoid valve, can avoid the problem that molecular sieve inhales the moisture failure.

The utility model discloses a humidifier for a breathing machine and the breathing machine. The humidifier comprises a shell, a cavity formed in the shell and an air channel structure arranged in the shell and communicated with the cavity. The air channel structure comprises an air inlet pipe allowing air to flow into the cavity and an air outlet pipe allowing the air to flow out of the cavity. The air inlet pipe comprises a first air inlet communicated with the outside, a first air outlet communicated with the cavity and a flow guide pipe communicated with the first air inlet and the first air outlet, the flow guide pipe comprises a first guide wall and a second guide wall which define the first air outlet, and the first guide wall protrudes out of the second guide wall in the direction away from the first air outlet; and the guiding effect is achieved on airflow diffusion of the first air outlet, and airflow of the first air outlet is prevented from diffusing towards the shell.

The utility model provides an electronic cigarette structure with an adjustable airflow channel, and relates to the technical field of electronic cigarette structures. Comprising a shell, a battery is fixedly mounted on the inner wall of the shell, a mounting clamping plate is fixedly connected to the inner wall of the shell, a mounting clamping block is clamped to the inner wall of the mounting clamping plate, an atomization frame is fixedly mounted at the top of the outer surface of the mounting clamping block, and a tobacco tar frame is fixedly mounted at the top of the outer surface of the atomization frame; the inner wall and the top of the tobacco tar frame are provided with adjustable air passage structures, the flow speed of the air passages in the air outlet frame can be controlled by controlling the number of the vent holes through the adjustable air passage structures, then the number of the vent holes can be opened and blocked according to actual use requirements, the flow speed of smoke can be controlled, and the smoke quality is improved. Therefore, a beginner can adapt to the flow of the smoke, the proper gas outlet speed can be selected by controlling the flow speed of the smoke, and waste caused by a large amount of gas outlet is avoided.

This utility model provides an airway structure for a foolproof e-cigarette cartridge, including a cartridge body, an atomizing core assembly, and a lower sealing e-liquid assembly. The atomizing core assembly is disposed within the cartridge body, and the lower sealing e-liquid assembly is disposed at the lower end of the cartridge body. The lower sealing e-liquid assembly includes a lower sealing silicone, a cartridge base, a central electrode block, and an electrode component. The lower end face of the cartridge base has an air inlet and a central mounting groove. The central electrode block is disposed in the central mounting groove, and the air inlet is disposed on the side of the central mounting groove. An airway groove and a connecting cylinder are disposed within the cartridge base. The lower sealing silicone is sleeved on the cartridge base, and the inner wall of the lower sealing silicone and the airway groove form an air intake channel. One end of the air intake channel communicates with the air inlet. The lower end of the atomizing core assembly is installed in the connecting cylinder, and the connecting cylinder has an air intake notch communicating with the other end of the air intake channel. The beneficial effect is that the combination of the air inlet, airway groove, and air intake notch improves the user's vaping experience.

This utility model relates to the field of air conditioning ducts and discloses a ventilation duct structure for air conditioning in ship cabins. The duct includes a flattened oval shape. One end of the duct is fixedly connected to a flange, and the other end is fixedly connected to a flange. Two sets of ducts are provided, and an airflow stabilizing component is installed at the right-angle connection between the two sets of ducts. The airflow stabilizing component includes a fixing groove formed on the inner wall of the duct. In this utility model, by setting the airflow stabilizing component and installing an adjusting block at the right-angle connection of the duct, the crescent-shaped adjusting block is embedded in the bend of the duct to change the local cross-sectional shape, making it similar to the cross-section of the flattened oval duct, thus guiding the airflow to a smooth direction. Simultaneously, a T-shaped connecting block stably fixes the adjusting block to the two sets of ducts, and a magnetic strip is used to stably adhere it to the inner wall of the duct, ensuring that the adjusting block does not shift under the impact of high-speed airflow, thereby improving the stability of the gas flow inside the duct.

The invention discloses an oil tank breather valve which comprises a mounting shell, an air guide pipe, a manual pressing assembly and a valve shaft. One end of the mounting shell is provided with an air inlet hole and mounting threads and is used for being fixedly connected with an oil tank; the manual pressing assembly comprises a manual valve shell, a hand pushing shaft and a torsional spring, and a structure capable of achieving manual air inlet and exhaust control is arranged in the manual pressing assembly. The valve shaft is of an integrated three-section structure and sequentially comprises a damping part, a guiding part and an air channel sealing part which are used for guiding positioning, air channel control and sealing damping. The valve sealing seat is matched with the sealing body, pre-pressing is provided through the spring, the valve shaft is driven to be opened or closed when external air pressure changes, and automatic air inlet or exhaust is achieved. The air channel structure integrates an annular air channel, a horizontal air channel and an air hole and is matched with a groove in the valve shaft to form a high-integration-level conduction path. By arranging multiple sealing rings and a damping pressure equalizing structure, the sealing performance and the operation stability are effectively improved.

The invention discloses a self-adaptive bump air inlet channel structure design method, and belongs to the field of aircraft air inlet channel structure design. Comprising four parts of high-bearing and large-deformation flexible skin design, main bearing structure design, distributed pressure-driven multi-airbag system design and control system design. According to the design scheme of the honeycomb filling flexible skin, the pneumatic pressure of the air inlet channel can be effectively borne, large out-of-plane deformation can be achieved, and the honeycomb filling flexible skin is an important composition structural part for achieving the self-adaptive bulging function; deformation of the bump molded surface is achieved through inflation and deflation of the air bag, the driving form is simple, the response speed is high, and the occupied size of the driving system is small; the multi-air-bag driving mode plays a good distributed driving role, the molded surface can be directly and effectively driven to deform under the effect of incoming flow loads, and therefore high-precision control over the molded surface of the bulge air inlet channel can be achieved.

The present invention provides a carrier device and semiconductor processing equipment. The carrier device includes a base body, wherein the plane on which the base body carries the wafer is a reference plane. The base body has an annular protrusion, the top surface of which is flush with the reference plane and is used to support and seal the edge area of ​​the wafer. The base body also has a first surface and a second surface below the reference plane, the first surface being close to the inner peripheral edge of the annular protrusion and the second surface being located in the center area of ​​the base body. The base body also has a third surface located between the first and second surfaces and recessed away from the reference plane. The first, second, and third surfaces are all distributed with interconnected airway structures. This solution can improve the uniformity of pressure distribution between the wafer and the base, thereby improving process uniformity.

The utility model relates to the field of electronic cigarette discloses an air switch air channel structure of preventing condensate, including zinc alloy shell, PCB assembly, air adjusting device, POD oil storehouse base and data line storage mechanism, data line storage mechanism includes fixed box, the fixed box in top end fixed setting has micro motor, the micro motor output fixedly covers and sets up one no. In the utility model, the data line does not need to be carried additionally, the problem that traditional data line is lost or forgotten can be effectively avoided, after charging, the micro motor can be started to wind the data line neatly back to the outer end of the first binding roller.

An airway structure, a cylinder cover and a Miller-profile engine are provided. The airway structure includes an intake duct and an intake valve arranged on an intake side, and an exhaust duct and an exhaust side roof arranged on an exhaust side. An angle of an axis of an intake valve stem relative to an assembly bottom surface of the cylinder cover is a1; an angle between a revolution cone surface of an intake valve disc and the axis of the intake valve stem is a2, an angle between a plane where the exhaust side roof is located and the assembly bottom surface is a3, a lower guide surface of the intake duct close to an intake throat is inclined downward at an angle of a4 relative to the assembly bottom surface. The airway structure satisfies: a3-3°≤a1-a2≤a3+3°; and / or, a4-3°≤a1-a2≤a4+3°.

The utility model relates to a low-voltage winding axial air channel structure and a gas insulation transformer, and belongs to the technical field of transformers, the low-voltage winding axial air channel structure comprises an inner side insulation layer and a winding layer wound on the outer wall of the inner side insulation layer, the winding layer comprises a plurality of coil layers, and a plurality of first supporting strips are evenly arranged between every two adjacent coil layers at intervals; the first supporting strips separate air flow channels between the adjacent coil layers, a plurality of second supporting strips are evenly arranged on the outer wall of the inner side insulating layer at intervals, and the second supporting strips abut against the innermost layer of the winding layer. According to the low-voltage winding, the first supporting strips are uniformly arranged between the adjacent coil layers at intervals, so that the axial airflow channels can be formed, and the airflow channels ensure that gas can circulate without obstruction, so that heat generated in the operation of the winding can be taken away, a relatively good cooling effect is achieved, and the low-voltage winding is located in a relatively low-temperature environment.

The invention discloses electronic atomization equipment which comprises a noise reduction and silencing structure, and the noise reduction and silencing structure comprises an air channel structure, a noise reduction structure and a noise reduction structure, the trailing edge structure comprises a structure body and a plurality of flexible bodies, the structure body is connected to the air channel structure and located at the air outlet end of the air flow channel, the structure body is provided with a first flow channel communicating with the air flow channel, and one end of each flexible body is connected with the end, away from the air channel structure, of the structure body; the other end of the flexible body is a free end and is arranged towards one end far away from the air passage structure; the multiple flexible bodies are arranged around the circumferential direction of the airflow channel at intervals. Wherein the flexible body can destroy a large-scale structure of a vortex system, so that the size of the vortex system is miniaturized, disturbance of airflow at the position of a trailing edge structure is weakened, and therefore the effect of reducing noise is achieved; the vortex system can be smoother relative to the trailing edge structure through interaction of the flexible body of the trailing edge structure and the vortex system, the continuity of interaction of the trailing edge structure and the incoming turbulent flow can be improved, and the noise reduction effect can be improved.

The utility model discloses a bottom blowing brick and a bottom blowing furnace adopting the bottom blowing brick. The bottom blowing brick comprises a brick body, an air duct and a bottom blowing air duct, the bottom blowing air channel is vertically arranged in the brick body, and the bottom end of the bottom blowing air channel is communicated with an air duct arranged outside the brick body. An excitation stop block is arranged on the side wall of the lower portion of the inner cavity of the bottom blowing air channel, and a first air gap allowing air flow to pass through is reserved in the excitation stop block. According to the bottom blowing brick provided by the utility model, an original straight cylinder air channel structure is changed, and the turbulent flow unit is arranged in the bottom blowing air channel, so that bottom blowing air reaches a self-excited oscillation state in the air channel, and therefore, the bottom blowing brick periodically swings left and right to drive liquid in a larger range to flow, and a better bottom blowing effect is achieved.