165 results about "Airflow orifice" patented technology

The invention relates to the technical field of heat dissipation, in particular to a standing wave heat dissipation device and system, and the device comprises an active film and a passive film which are oppositely arranged. A standing wave cavity is arranged between the active film and the passive film. The cavity wall of the standing wave cavity is provided with an air flow hole channel. The active film and the passive film can vibrate in opposite directions at the same frequency, form standing waves in the standing wave cavity, continuously extrude gas in the cavity and present a surge state, so that the air in the standing wave cavity is continuously compressed and extruded from inside to outside to form an inside-outside pressure difference, and the gas in the standing wave cavity is repeatedly extruded to pass through the gas flow hole channel; and the air flow is jetted to the outside of the standing wave cavity at a high speed in a surge state to form a continuous constant high-speed air flow. When the standing wave heat dissipation device provided by the invention is used for heat dissipation, the active film and the passive film are subjected to reverse same-frequency vibration to form standing wave extrusion airflow, and compared with single vibration film vibration extrusion airflow, the airflow is faster, the efficiency is higher, and the heat dissipation effect is better.

The invention provides a double-channel air inlet mixing rectifying device which comprises an inner culvert high-temperature air flow channel, an inner culvert rectifying cone is fixedly arranged at an inner culvert outlet of the inner culvert high-temperature air flow channel, and the head structure of the inner culvert rectifying cone is obtuse; a flow channel of the outer culvert rectifying cavity comprises a first-stage outer culvert rectifying plate, a second-stage outer culvert rectifying plate, a third-stage outer culvert rectifying plate and a fourth-stage outer culvert rectifying plate, airflow holes are formed in the first-stage outer culvert rectifying plate so that the flow channel can be divided into a first-stage rectifying cavity and a second-stage rectifying cavity, airflow holes are formed in the second-stage outer culvert rectifying plate so that the flow channel can be divided into a second-stage rectifying cavity and a third-stage rectifying cavity, and airflow holes are formed in the third-stage rectifying cavity. An outer culvert inlet of the outer culvert rectifying cavity is formed in the first-stage rectifying cavity; the multiple third-stage outer culvert rectifying plates are evenly arranged in the flow channel in the circumferential direction so that the flow channel can be divided into a third-stage rectifying cavity and a fourth-stage rectifying cavity, and the multiple fourth-stage outer culvert rectifying plates are evenly arranged at an outlet of the fourth-stage rectifying cavity in the circumferential direction. The air flow field uniformity of the inner culvert outlet and the outer culvert outlet of the device is improved, and the afterburner test piece inlet flow field requirement is met.

The invention relates to the technical field of rotary table welding, in particular to a welding method based on a large-table-board and large-bearing-tonnage rotary table. The method comprises the steps that blanking, beveling, welding and leveling are conducted on a target bedplate according to a preset bedplate splicing position, welding, annealing aging treatment and machining are conducted on a target sliding rail according to a preset sliding rail tailor-welding position, and the welded target bedplate, the target sliding rail, transverse and vertical rib plates with preset welding shrinkage and air flow holes and main basic components are welded into a whole; welding points are fixedly assembled to form a rotating table body, welding rib plates are reinforced to connect welding seams, the table plates are removed, the rotating table body of the welding tool support is welded according to the welding sequence, the tool support is detached, the welding seams between the target table plate and the rotating table body are welded, and an upper cover plate is welded to the rotating table body. And carrying out annealing aging treatment after welding. According to the welding method, the welding quality of the sliding rail and the rib plate and the stability of a machined finished product of the rotating table are guaranteed.

The present invention relates to a filter assembly structure and a vacuum cleaner, comprising: a filter; an assembly having an inner cavity, the assembly having an opening and an air flow hole connected to the inner cavity, a portion of the filter being sealed and assembled in the inner cavity from the opening, a sealed cavity being defined between the filter and the cavity wall of the inner cavity; an opening and closing member for opening and closing the air flow hole, the opening and closing member opening the air flow hole when the pressure in the sealed cavity is greater than the pressure in the external space, and closing the air flow hole when the pressure in the sealed cavity is less than the pressure in the external space; when the filter is subjected to a force that urges it to separate from the assembly, an air pressure difference is generated between the sealed cavity and the external space that urges the filter to be adsorbed on the assembly. When the filter is subjected to a force that urges it to separate from the assembly, the volume of the sealed cavity increases, and at this time, the pressure in the sealed cavity decreases, and an air pressure difference is generated between the sealed cavity and the external space that urges the filter to be adsorbed on the assembly, thereby making it difficult for the filter to separate from the assembly.

The invention discloses surrounding welding equipment for liquid level meter outer barrel machining, and relates to the technical field of liquid level meter outer barrel machining and welding. The surrounding welding equipment for liquid level meter outer barrel machining comprises a containing frame, the top of the containing frame is fixedly connected with a welding part, the inner top of the containing frame is fixedly connected with a power part, the top of the power part is rotationally connected to a workbench, and the top of the containing frame is fixedly connected with a guiding mechanism. According to the surrounding welding equipment for liquidometer outer barrel machining, by arranging the guiding mechanism composed of the draught fan, the airflow pipe and the airflow difference assembly, the equipment can actively generate and guide airflow near a welding point, on one hand, the airflow generated by the draught fan is directly blown through the airflow pipe, smoke generated by welding is blown away from a welding area, and on the other hand, by means of the Bernoulli principle, the welding efficiency is greatly improved; and airflow flowing at a high speed in the airflow bin forms a negative pressure area through airflow holes in the wall surface of the airflow bin.

The utility model discloses a reinforced explosion-proof liquid oxygen storage tank, which belongs to the technical field of liquid oxygen storage tanks, and comprises a liquid storage tank, one side of the liquid storage tank is fixedly connected with an air flow pipe, one end of the air flow pipe is fixedly connected with a guide pipe, the top of the guide pipe is provided with a sealing joint, the side wall of the guide pipe is provided with four air flow holes, and the air flow holes are communicated with the air flow pipe. A limiting ring is arranged on the outer side of the airflow hole, a rupture disk is slidably connected into the limiting ring, and a nut is connected to the limiting ring in a threaded mode. According to the reinforced explosion-proof liquid oxygen storage tank, by arranging the guide pipe, the sealing joint and the rupture disk, when the pressure of the liquid oxygen storage tank exceeds a set threshold value, the sealing joint is pushed to move upwards, gas is exhausted through the top of the guide pipe to reduce the pressure, and when the guide pipe is in the exhaust process and the pressure of the storage tank is still increased and exceeds the threshold value of the rupture disk, the sealing joint is pushed to move upwards. And the rupture disk is ruptured to quickly exhaust and depressurize, so that the exhaust efficiency is improved, and the tank body structure is prevented from being damaged or ruptured.

The invention relates to the technical field of bladeless fans, in particular to a bladeless fan and a temperature control method thereof.The bladeless fan comprises a base, a filter screen is movably connected to the base, a drawer is fixed to the filter screen, a plurality of sets of ice crystal boxes are movably connected to the drawer, a limiting mechanism is arranged between the base and the filter screen, and a plurality of sets of air inlet holes are formed in the filter screen and the drawer; the ice crystal box has the beneficial effects that the ice crystal box is taken out of the base and put into a refrigerator to be frozen for six hours, so that the ice crystal box stores enough cooling capacity, then the ice crystal box is put back into the drawer and put back into the base, and when the motor is powered on to drive the impeller to rotate, air enters the ice crystal box containing groove from the air inlet hole and makes contact with the ice crystal box; the cooling capacity stored in the hydrogel in the ice crystal box is transmitted to the air, so that the air is cooled, the cooled air is pressurized by the impeller, blown into the air pipe from the airflow hole and then exhausted through the exhaust hole, the function of controlling the indoor temperature to be reduced is achieved, and a better cooling effect is provided for a user.

The invention belongs to the technical field of electroacoustics, and particularly relates to a sound production device and electronic equipment, the sound production device comprises a shell and a sound production monomer and a breathable separator which are arranged in the shell, the sound production monomer is matched with the shell to define a front sound cavity and a rear sound cavity in the shell, the rear sound cavity is filled with molecular sieve powder particles, and the breathable separator is arranged in the shell. The breathable separator is used for separating the molecular sieve powder particles from the sound production monomer, the breathable separator is a nuclear track membrane, the nuclear track membrane is provided with a plurality of breathable micropores, each breathable micropore is provided with an airflow pore channel penetrating through a membrane body, and an inclination angle alpha and 0 degree lt is formed between the extension direction of at least part of the airflow pore channels and the thickness direction of the membrane body in the flowing direction of airflow; [alpha] [lt]; and 90 degrees. According to the sound production device, under the condition that the required ventilation volume is achieved, molecular sieve powder particles can be more effectively isolated and protected, and the powder particles are prevented from leaking to pollute the sound production monomers.

The present application relates to the technical fields of oil extraction safety valve, more particularly to a kind of underwater pressure balanced gate valve for deep-sea oil extraction operation, including gate valve body, the gate valve body includes valve body main body, fluid passage is arranged at the both ends of the valve body main body, fluid passage is arranged with valve plate moving cavity in the middle part, gate plate is installed in the inside of valve plate moving cavity, two air flow holes are arranged in the both sides of valve plate moving cavity, air flow hole is communicated with pressure chamber in the other end, air pressure plate is installed in the inside of pressure chamber;The present application is provided with sealing air bag, it is favorable when gate plate is closed, partial pressure groove negative pressure area disappears, triangular arc groove is preset with sealing air bag, and it is expanded under the action of pressure chamber high pressure, and it is formed dynamic sealing by being closely attached to gate plate;Meanwhile, through sealing air bag and crude oil self-lubricating effect, realize high sealing property and wear resistance under high pressure, it is suitable for deep-sea oil well wellhead valve and other high pressure working conditions, significantly improve the reliability and service life of valve under extreme environment.

The present application relates to an atomizer and an electronic atomization device. The atomizer comprises an oil cup and an atomization assembly, the atomization assembly comprises a bottom assembly, a top assembly mounted to the top end of the bottom assembly, and a heating assembly clamped and positioned between the bottom assembly and the top assembly, and is provided with an airflow channel penetrating through the top assembly and the heating assembly from top to bottom; the top assembly is mounted into the oil cup and is in sealing connection with the inner wall of the oil cup, the top assembly is provided with a liquid inlet channel for providing atomization liquid in the oil cup to the heating assembly, the heating assembly comprises an oil guide body and a heating body stacked together, the oil guide body is connected with the liquid inlet channel and has a first airflow hole forming part of the airflow channel, and the heating body is arranged on the side of the oil guide body away from the top assembly and bypasses the first airflow hole. The present application can reduce the generation of condensate, avoid the phenomenon of users inhaling condensate, and has fast oil supply speed and large atomization area, so as to provide users with better smoking experience.

The utility model relates to the technical field of fire extinguishing equipment, in particular to an aerosol fire extinguishing device suitable for an electric appliance cabinet, which comprises a fire extinguishing shell, a cooling ball, an aerosol grain, a left thermosensitive line and a right thermosensitive line, and a first drainage air passage, a second drainage air passage and a third drainage air passage are sequentially arranged on the inner side of the fire extinguishing shell from left to right. The first drainage air channel, the second drainage air channel and the third drainage air channel are all filled with cooling balls. The aerosol medicine column is reasonable and compact in structure, by arranging the first drainage air channel, the second drainage air channel and the third drainage air channel, after the aerosol medicine column reacts and generates an aerosol mixture, the drainage air channels can conduct flow guiding on the aerosol mixture, and therefore the aerosol mixture can flow through the drainage air channels in the process that the aerosol mixture passes through the drainage air channels. The aerosol mixture can be fully contacted with the cooling ball for a long time in a long path, the cooling effect can be improved, and the cooled aerosol mixture is sprayed out from the left airflow hole and the right airflow hole under the action of pressure to control a fire source.

The invention discloses a sound production device for an overhead air horn, which belongs to the technical field of air horns and comprises a mounting base, a sound production assembly, a protective shell and an elastic supporting piece. The mounting base is provided with the coaxial positioning part and the multiple groups of airflow holes surrounding the coaxial positioning part, and a balanced airflow path is formed in cooperation with a communicating structure of the ventilation hole, the airflow channel and the annular groove in the horn head; the annular groove and the airflow holes surrounding the coaxial positioning part cooperate to ensure that airflow is uniformly distributed along the circumferential direction of the sounding sheet, and the problem that local high-speed airflow impacts a specific area of the sounding sheet for a long time in the prior art is avoided; the conical supporting section of the mounting base is coaxially connected with the axial through section through a smooth conical surface, external compressed airflow is guided to be smoothly transited to the acoustic channel, resistance and pressure fluctuation when the airflow enters are reduced, a uniform stress foundation is provided for the sound production piece, the sound production piece is prevented from shifting due to uneven local stress from the source, and the sound production efficiency is improved. And the long-term stability of the vibration frequency is ensured.

The utility model relates to cloth chute technical field, the utility model provides a cloth chute of even unloading, it includes motor, fan blade and airflow hole. The utility model still includes transmission shaft, knock stick and push material board. In the utility model, through the mutual cooperation between the motor, fan blade and airflow hole etc. Component of even unloading mechanism, after fixing the chute through mounting plate, start motor, make its output shaft drive pivot rotation, further drive pulley no.

The utility model discloses a hollow graphitization furnace column which comprises a furnace column body, the furnace column body is in a vertically arranged rectangular column shape, the left side and the right side of the furnace column body are both provided with installation protrusions, and the furnace column body is connected with a furnace wall in a clamped mode through the installation protrusions. A hollow channel with an opening in the bottom end is formed in the furnace column body, a plurality of communicating air holes are formed in the left side and the right side of the hollow channel, one end of each communicating air hole communicates with the hollow channel, and the other end of each communicating air hole penetrates through the outer side end face of the mounting protrusion and then communicates with an airflow through hole preset in the side wall of the furnace wall; the front side and the rear side of the hollow channel are each provided with an air inlet and an air outlet, and the air inlets are located below the air outlets. A plurality of negative pressure airflow holes are formed in the end wall of one end, close to the interior of the graphitization furnace body, of the furnace column body, are positioned between the air inlet and the air outlet and are communicated with the hollow channel.

The utility model provides an air floating motion platform which comprises a base, a first driving part and air floating guide rails arranged at the two ends of the base in the first direction, a cross beam is arranged between the two air floating guide rails, the two ends of the cross beam are connected with air floating plates, and the first driving part drives the cross beam to move in the second direction. An opening is formed between at least one end, facing the cross beam, of the air floating guide rail and the base, the air floating plate is partially and movably arranged in the opening and faces the base, and airflow holes are formed in all surfaces of the air floating guide rail; air flow holes in the air floating plates generate air flow acting on the base and the air floating guide rails, generated upward air floating force and generated downward air floating force are matched with each other, air floating force generated by the two air floating plates in the first direction is matched with each other, the air floating plates are suspended above the base in the moving process of the cross beam, and the air floating plates do not make contact with the air floating guide rails. Friction among the air floating plate, the base and the air floating guide rail during moving is avoided, the air floating motion platform can be made to be light, and the motion speed and precision of the air floating motion platform can be improved.

The utility model belongs to the technical field of equipment detection devices, and discloses an oxygen sensor airtightness detection device which comprises a main board, a supporting frame and a detection mechanism are fixedly connected to the upper surface of the main board, the detection mechanism comprises a placement box, a second sealing plate is arranged at a groove of the placement box, airflow holes are formed in a placement groove and the second sealing plate, and the airflow holes are communicated with the airflow holes. A connecting plate is fixedly connected to the other end of the placement box, an air tightness detector is fixedly connected to the outer side of the connecting plate, an air cylinder is fixedly connected to the interior of the mounting box, the output end of the air cylinder is in transmission connection with a telescopic rod, and the other end of the telescopic rod is fixedly mounted on the upper surface of the second sealing plate. A to-be-detected oxygen sensor is placed in the placing groove, the air cylinder is used for driving the telescopic rod at the output end to move downwards, the lower end of the telescopic rod is fixedly connected to the upper surface of the second sealing plate, the second sealing plate seals the upper surface of the placing groove, and the first sealing plate and the second sealing plate are used in cooperation. And the overall airtightness detection effect of the device is improved.

The adjustable pressing device of the vertical sawing machine belongs to the technical field of vertical sawing machines and comprises an adjusting motor, the output shaft of the adjusting motor is fixedly provided with a driving stud at one end, the driving stud is movably provided with a supporting assembly outside, the supporting assembly is rotatably provided with a mounting turntable, and the upper surface of the mounting turntable is provided with an airflow hole, a chip removal saw groove and a stroke groove; in the adjustable pressing device, a plurality of adjustable pressing mechanisms are arranged in a matched mode, the traditional hydraulic workpiece positioning design is abandoned, a plurality of different positioning rollers are utilized, the direction of the positioning rollers is changed, the quick positioning of the cutting workpiece is realized, the convenience of operation is greatly improved when the cutting workpiece is installed and dismounted, the machining efficiency of the equipment can be ensured, the workpiece damage or unstable positioning caused by hydraulic positioning can be avoided, and the practical application effect of the device is greatly improved.

The embodiment of the utility model provides a miniature vacuum air pump which comprises an air collecting and exhausting assembly provided with an exhaust port and a valve plate assembly arranged on the outer side of the exhaust port to control airflow exhausted from the exhaust port, and the valve plate assembly comprises a valve plate and an umbrella pin. The valve plate is provided with an airflow hole allowing airflow to pass through and an insertion hole used for installing the umbrella pin, and the umbrella pin comprises an umbrella rod correspondingly inserted into the insertion hole and an umbrella cover connected to the end, away from the exhaust port, of the umbrella rod and used for movably sealing the airflow hole. A plurality of annular protruding ribs surrounding the umbrella rod are further formed on the surface of the side, facing the valve plate, of the umbrella cover. According to the embodiment of the utility model, when the miniature vacuum air pump sucks air and the umbrella pins fall back to clap the plate surface of the valve plate, the umbrella pins are in contact with the plate surface of the valve plate through the annular convex ribs of the umbrella covers, and the contact surface of the umbrella pins and the plate surface of the valve plate is smaller, so that the noise generated by clapping the valve plate by the umbrella pins is smaller, and the working noise of the miniature vacuum air pump can be effectively reduced.

The utility model relates to an MOFs adsorption filter element and a volatile organic compound filtering system based on MOFs, and the MOFs adsorption filter element comprises a groove-shaped shell and a detachable cover plate, one side of the groove-shaped shell is open, the interior of the groove-shaped shell is hollow, and the detachable cover plate is matched with the opening of the groove-shaped shell; the two ends of the groove-shaped shell are each provided with an airflow hole, each airflow hole is communicated with a ventilation pipe, and the outer surface of each ventilation pipe is provided with a detachable connecting structure. At least one filter plate is detachably arranged in the groove-shaped shell, at least one through hole is formed in each filter plate, the surface of each filter plate is coated with MOFs (Metal Organic Frameworks), and when the filter plates are fixed in the groove-shaped shell, the angle formed by the normal of each filter plate and the center connecting line of airflow holes in the two ends of the groove-shaped shell is smaller than or equal to 30 degrees. The MOFs adsorption filter element can be used for adsorbing VOCs in gas so as to purify the gas.

The present invention relates to the technical field of on-line detection equipment for primary air ducts, and specifically discloses an on-line detection and alarm device for primary air ducts, which specifically includes: a vibration mechanism is arranged inside the main body; an air flow hole is opened on the outer side wall of the main body; an air flow detection mechanism is arranged inside the main body opposite to the air flow detection hole; an alarm mechanism is arranged inside the main body, and a control mechanism is electrically connected to the air flow detection mechanism, the vibration mechanism, the primary air damper and the coal feeder. The alarm mechanism is used to give an alarm after the air flow detection mechanism detects abnormal gas flow in the primary air duct. By obtaining various data information of the air flow and pulverized coal in the primary air duct detected currently, it is judged whether a blockage occurs in the current primary air duct. If a blockage occurs, pre-treatment is carried out. If the blockage situation is not solved, an alarm message is sent to the operator, preventing the problems that in the traditional method, when the operator detects the primary air duct, the detection efficiency is reduced and it is easy to miss detection, which may further lead to the damage of the combustion furnace and cause casualties.

An object of the invention is a module arrangement being arranged to a M x N matrix, N being any natural number. A fuel inlet manifold (150) and a fuel outlet manifold (152) form a fuel manifold (171) to deliver supply fuel gas (108) to the stacks and fuel exhaust gas (177) from the stacks, and the stacks been arranged in the manifold in a parallel connection from the fuel gas supply and fuel exhaust gas connection point of view. The inlet manifold (150) comprises gas flow holes of controllable sizes to the stacks (103) for forming even gas flow to the stacks, and the outlet manifold (152) comprises gas flow holes of controllable sizes to the stacks (103) for forming even gas flow from the stacks. The inlet manifold (150) comprising a connection structure (160), and a flow element (320) braking the main flow stream coming from the gas inlet connection (160), and the inlet manifold (150) comprising a gas volume (300) between the flow element braking the main flow stream and inlet manifold connection structure, and at least one of the inlet manifold and the outlet manifold comprising two layer structure comprising a gas tight cover structure (330) and inner heat insulation structure (310), and the module arrangement comprises a first gas seal (155) on the gas tight cover structure, a first electrical insulation plate (119) and a second gas seal (156) between the manifold (171) and the stack (103). On top side (122) and on bottom side (124) of the cell stack (103) the module arrangement comprises a second electrical insulation plate (114), compression structures (116) for the stacks (103), and an air side sealing structure (169) between the stacks, and each stack end plate (170) is connected with an electrical connection.

A tire air filling device according to one embodiment includes: a cylinder; a weight which has an air flow hole and which receives a centrifugal force to move and cause air to be supplied to an inside of a tire; a first sealing member; a first spring; a first support portion; and a backflow prevention valve. The backflow prevention valve includes a slide member that slides in the air flow hole in an axial direction, a second spring that biases the slide member to a side opposite the tire, a second support portion that supports an end portion of the second spring in the axial direction; and a second sealing member interposed between an inner surface of the air flow hole and the slide member. The slide member, the second spring, and the second support portion are disposed inside the weight.

The present disclosure provides a smoking article comprising a combustible heat source, comprising: a first part containing a combustible heat source; a second part containing a tobacco material; an airflow hole extending to the upstream side of the combustible heat source from the downstream side end of the first part; and a buffer space located between the first part and the second part and connected to the airflow hole, wherein the airflow hole does not penetrate the combustible heat source. The smoking article has an effect of improving combustion persistency by using a combustible heat source to which an airflow hole is applied.

An adjustable gas system for a firearm includes a one-piece gas block body, configured to be fixed to a barrel of the firearm, and a partial annular gas regulator. The gas block includes a gas flow hole that receives a gas tube of the firearm. The gas block body also includes a gas block body bulge and a ring at one end of the gas flow hole. The gas block body clamps to a barrel of the firearm by: (i) set screw(s), and (ii) direct / physical contact of the gas block body bulge and the ring. The gas regulator, when installed on the barrel, rotatably and partially surrounds the barrel such that, as the gas regulator is rotated around the barrel from a first position to a second position, a diameter of a resultant gas port hole changes as controlled by allocation holes on the gas regulator.

The application provides a cleaning device and a cleaning device assembly. The cleaning device comprises a housing, a side wall plate of the housing along a first direction is a bottom plate, the bottom plate is suitable for facing a surface to be cleaned, the bottom plate has spaced apart air inlets and air outlets; a walking device is installed in the housing and comprises a track, the track is arranged in the air outlet, the track has airflow holes penetrating through the track along the arrangement direction of the outer circumferential surface and the inner circumferential surface of the track; an air duct and a fan module are arranged in the housing, the fan module is used for driving fluid to enter the air duct from the air inlets; the air outlet of the air duct faces the track. In the cleaning device provided by the application, the problem of skidding of the cleaning device when walking can be at least avoided to some extent, the secondary pollution of the cleaned surface can be avoided, the self-cleaning ability of the cleaning device is improved, the cleaning efficiency of the cleaning device, the reliability of the product and the use experience of the user are improved.

The present invention relates to the technical field of sample collection, and provides a skin sampling device that is convenient for collection and storage, including: a first housing and a second housing, and an installation opening is formed on the surface of the second housing. The sterile water is conveyed to the nozzle through a water pump, and the animal is cleaned through the nozzle. After the cleaning is completed, the intake fan allows the external gas to enter the air drying cover through the diversion cavity, and the air flow holes on the surface of the air drying cover are used to air-dry the animal skin. In addition, the electric telescopic rod drives the substrate to move downward, so that the swab paper on the surface of the magic tape is attached to the animal. While the swab paper is in contact with the animal, the sponge deforms under force, facilitating the swab paper to fit the animal surface. The motor drives the installation piece to rotate through the connecting shaft, and the swab paper is driven to rotate through the installation piece, the electric telescopic rod, the substrate, the buffer spring, the adjustment block, the sponge and the magic tape, so as to collect the sample on the surface of the animal skin.

The utility model relates to the technical field of deposition furnaces, in particular to a multifunctional gas dispersing device of a deposition furnace, which comprises a movable seat and a gas cover, the gas cover is movably sleeved at the top end of the movable seat, four groups of through gas outlets are arranged at the gas cover, and gas dispersing pipes are connected at the gas outlets. An air dispersing nozzle and an air dispersing port are assembled at the output end of the air dispersing pipe respectively, a flow channel is formed in the air dispersing nozzle, a fixed seat is welded in the flow channel, a blocking groove is formed in the fixed seat, a plug is movably connected in the blocking groove in a sleeved mode, a movable block is welded to the top end of the plug, and branch pipes are welded to the four corners of the top end of the air dispersing nozzle respectively. According to the multifunctional air dispersing device for the deposition furnace, the sealing ring groove is formed, the four groups of air dispersing nozzles are arranged at the bottom end of the air cover, the impact force of airflow is dispersed through the design of the movable plug and the airflow holes in multiple positions, air is automatically dispersed according to the air pressure, and therefore the risk that the internal structure is damaged by the airflow is reduced; and the problem of overpressure high-temperature airflow impact is solved.

The present application relates to the technical field of fabric drying and setting, and particularly relates to a fabric intelligent drying and setting device, which comprises a setting chamber through which a fabric to be treated is arranged, and further comprises: a suspension spreading unit installed in the setting chamber, wherein the suspension spreading unit comprises at least one group of hollow drying plate groups, each drying plate is provided with a flow guide slit, and a dynamic wave guide tensioning unit, wherein the dynamic wave guide tensioning unit comprises a group of oppositely arranged upper flow guide assemblies and lower flow guide assemblies, and each of the upper flow guide assemblies and the lower flow guide assemblies is provided with an airflow hole one; the fabric is transmitted through air cushion suspension, so that the damage of mechanical contact to fabric nap and microstructure is reduced; meanwhile, the wave-shaped pneumatic channel with dynamic adjustable wave amplitude is used to intelligently adjust the running tension without directly pulling the fabric, so that the instability and beating phenomenon of light and thin fabric in the airflow are effectively inhibited, and the stable and controllable conveying process is realized while the high quality of the fabric is ensured.

The utility model discloses a protective garment with a lens self-cleaning function, which belongs to the technical field of protective garments and comprises a protective garment body, a pair of goggles and a ventilation plug are arranged on the head of the protective garment body, a fixing frame is fixedly connected to the inner side of the goggles and located inside the protective garment body, and the ventilation plug is arranged in the protective garment body. An air bag strip is fixedly installed at the upper end of the inner wall of the fixing frame, and side grooves are formed in the inner walls of the two sides of the fixing frame. When a person wears the protective clothing for a period of time and the goggles are dirty, the person manually presses the forehead of the protective clothing, namely the upper end of the fixed frame, so that air in the air bag strip flows to the telescopic pipe through the air flow hole, the telescopic pipe extends under the stamping of air flow, and then the movable strip is driven to slide downwards along the two vertical rods; as the bottom end of the outer wall of the moving strip is provided with the extension piece, the moisturizing groove and the cleaning strip, the moving strip moves downwards along the inner wall of the goggles, and the effect that the cleaning strip cleans the inner wall of the goggles is achieved.

The utility model discloses a vibration disc with a convenient backflow structure. The vibration disc comprises a vibration source body, a feeding disc, a straight vibration track, a detection optical fiber sensor, a screening airflow hole, an extending backflow face and a guide groove. By means of the mode, the vibration disc with the convenient backflow structure achieves the effect of convenient backflow circulation of products rejected by a straight vibration rail through the arrangement of the extending backflow face, effectively simplifies the structure of the vibration disc, saves research and development and manufacturing cost, does not need manual debugging and maintenance, is simple and reliable in butt joint, and improves the working efficiency. The use safety is improved, the energy consumption of the equipment is greatly reduced, and the equipment is more energy-saving and environment-friendly.