27 results about "Pneumatic trough" patented technology

The application provides a kind of lining heat treatment equipment, belongs to lining processing technical field, including trolley and hoist furnace body by support, the upper end of the trolley is provided with cavity, the inside bottom surface of the cavity is provided with support column in array, the upper end of the support column is fixedly connected with backing plate, the upper surface of the backing plate is provided with refractory pad for placing lining;The inside of the cavity is vertically slidingly connected with sealing frame, the outside of the sealing frame is provided with gas groove, the bottom surface edge of sealing frame is uniformly provided with gas hole communicated with gas groove, the inside bottom surface edge of the cavity is uniformly provided with T-shaped rod;The upper end edge of the trolley is provided with groove, and the step surface at the opening of the upper end of the groove is provided with sealing pad;The application can solve the problem of sealing failure caused by debris, and prolong the service life of sealing pad by flexible support, greatly improve the sealing between furnace body and trolley.

The utility model relates to the technical field of special transportation operation, in particular to a suction and floating integrated platform structure which comprises a bottom plate, the bottom plate is communicated with external gas circuit equipment, and a positive pressure gas connecting structure and a negative pressure gas connecting structure are formed on the bottom plate. A frame body is arranged above the bottom plate, and a plurality of positive pressure guiding and collecting pipes and negative pressure guiding and collecting pipes are formed in the frame body; the lower part of the positive-pressure guiding and collecting pipe is communicated with the positive-pressure gas connecting structure, and the upper part is communicated with the positive-pressure shunting gas groove; the lower part of the negative-pressure guiding and collecting pipe is communicated with the negative-pressure gas receiving structure, and the upper part is communicated with the negative-pressure shunting gas groove; the positive pressure flow dividing air groove and the negative pressure flow dividing air groove are formed in an air dividing plate, a panel is further arranged above the air dividing plate, and a plurality of throttling type positive pressure holes and throttling type negative pressure holes are evenly formed in the panel. By guiding the positive pressure airflow and the negative pressure airflow, the airflow reaches the upper part of the panel through a fixed passage to form an air film, so that a workpiece above is kept suspended; and meanwhile, the distribution of the gas film is uniform, the strength can be flexibly adjusted, the balance effect of the workpiece is further guaranteed, and excessive energy consumption is also avoided.

The utility model discloses an automatic cut powder machine relates to food processing equipment technical field, including the conveying group, cutting mechanism and the hanging pole that set gradually, the conveyor belt of conveying group is equipped with through -hole and is linked with the air groove, through pneumatic auxiliary reduction noodle stick adhesion, guaranteeing the smooth conveyance and product integrity, and cutting mechanism contains rotary outer tube, the cutting board of inside setting, cutting knife and piezoelectric stack, realizes synchronous flying shear, and allows noodle stick continuous conveying high -efficient cutting, piezoelectric stack drive cutting knife high -frequency vibration, ensure that the incision is smooth, effectively prevents sticking, and cutting knife is immersed when rotating in the sink, and completes self -cleaning and lubrication, and the noodle stick of cutting is accurately positioned, and is automatically hung by the liftable hanging pole, and the machine sets automatic conveying, precision flying shear, vibration clean cutting and automatic hanging pole in one, and the production efficiency, noodle stick quality and automation level are improved significantly, and the labor intensity and maintenance demand are reduced.

The application discloses a kind of quick temperature change damp heat test device, belong to temperature change damp heat test technical field, including test box, the bottom wall of the test box is slidably installed with placing plate, the bottom wall of the test box is rotatably installed with annular plate, the top wall of the annular plate is fixedly installed with mounting ring, the top wall of the mounting ring is uniformly fixedly installed with gas rod.This scheme passes impeller, in the process of air flow flow direction annular groove will blow impeller rotation, in the process of impeller rotation annular plate is driven to rotate, then in the process of annular plate rotation through mounting ring gas rod is driven to rotate, at the same time, when airflow passes through communication pipe, airflow will flow to gas tank through communication pipe, and flow to vertical groove through gas tank, then blow to the product to be measured through the air hole on vertical groove, so that the efficiency of the product to be tested can be improved uniformly heated, cold and wet, improve the efficiency and accuracy of test.

The invention discloses a spray tower structure for spray dust removal, and relates to the technical field of dust removal equipment. Comprising a tower body; the spraying assembly and the gas inlet assembly are sequentially arranged in the tower body from top to bottom; the liquid storage exhaust box is arranged at the bottom in the tower body; the spraying assembly comprises a spraying water tank arranged outside the tower body, a water outlet of the spraying water tank is provided with an adjusting nozzle box, an adjusting frame is horizontally arranged at the top in the tower body, the adjusting nozzle box is slidably arranged in the adjusting frame, a middle spraying groove is formed in the middle of the adjusting frame, and side spraying grooves are symmetrically formed in the two sides of the middle spraying groove respectively; the air inlet assembly comprises a supporting plate horizontally arranged below the adjusting frame in a spaced mode, two air adjusting boxes are arranged at the two ends of the top face of the supporting plate in a spaced mode, and air inlet pipes are arranged on the side walls of the two air adjusting boxes. The liquid storage exhaust box comprises an exhaust box communicated with the air groove, and an exhaust pipe is arranged on the exhaust box. The waste gas treatment device has the advantages of being beneficial to improving the waste gas spraying treatment effect and the like.

The utility model relates to the related technical field of pneumatic conveying, in particular to a high-sealing-performance pneumatic conveying inner wall air groove steel pipe which comprises a first steel pipe and a second steel pipe, the first steel pipe is a straight pipe, the second steel pipe is a straight pipe with an elbow, and a positioning thread groove is formed in the inner wall of the second steel pipe. Two arc-shaped grooves are formed in the surface of each of the first steel pipe and the second steel pipe, and a sealing assembly is fixedly connected between the first steel pipe and the second steel pipe. According to the high-sealing-performance pneumatic conveying inner wall air groove steel pipe, through the arrangement of the sealing assembly, when the high-sealing-performance pneumatic conveying inner wall air groove steel pipe is used, extrusion grooves in the inner walls of an upper arc-shaped plate and a lower arc-shaped plate can be matched with arc-shaped grooves to extrude a rubber sealing ring and an annular air bag ring, and the effect of deformation of the rubber sealing ring and expansion of the annular air bag ring is utilized; the air tightness between the first steel pipe and the second steel pipe is improved, it can be guaranteed that the negative pressure in the pipeline does not change in the pneumatic conveying process, and therefore the stability of pneumatic conveying is guaranteed.

The utility model relates to the technical field of PECVD (Plasma Enhanced Chemical Vapor Deposition) equipment, in particular to a partition controllable PECVD Showerhead structure, which comprises a box-shaped cavity structure consisting of an upper gas tank plate, a lower spraying plate and peripheral baffles, a plurality of partition plates in a concentric-square-shaped state are arranged in the box-shaped cavity structure along the horizontal direction, and the partition plates are arranged on the periphery of the box-shaped cavity structure. Each partition plate divides the interior of the box-shaped cavity structure into an area, the side, away from the spraying plate, of the air groove plate is communicated with a plurality of air inlet pipelines, each air inlet pipeline is communicated with one area, each area is internally provided with an air uniformizing plate, and each air uniformizing plate is communicated with the corresponding air groove plate. According to the utility model, the diffusion of the gas in the box-shaped cavity structure can be enhanced, the uniformity of the concentration of the gas in the cavity can be improved, the concentrations of the gas in different areas can be set to be the same or different according to the thickness of a deposited film, and finally, the purpose of uniform thickness of the deposited film is achieved.

The utility model belongs to the technical field of waste gas treatment, and particularly discloses a waste liquid incineration device with a waste gas treatment mechanism, which comprises a shell and a rotary table, the bottom end in the shell is movably connected with the rotary table, a sleeve frame is fixed on the left side of the top end of the rotary table, and a liquid cylinder is inserted and fixed in the sleeve frame. A box body is installed at the upper left corner of the exterior of the shell, and a cover plate is installed above the box body. According to the waste liquid incineration device with the waste gas treatment mechanism, the box body is installed at the upper left corner of the exterior of the shell, a valve is opened, gas is conveyed to a hose through a gas pipe, then waste liquid in a stove body heating liquid cylinder is ignited, decomposition of internal harmful substances is promoted, and the liquid is vaporized; after the exhaust fan is started, the generated waste gas enters the elbow from the gas groove, is adsorbed by the bamboo charcoal particles in the three groups of box bodies and can be discharged to the external environment, so that the adsorption path is prolonged, the purification material is convenient to replace, and the problem that the waste gas is easy to generate is solved.

The utility model relates to a sealing device for a rear cover of a water dispenser, which belongs to the technical field of water dispensers and comprises a cover plate and an air pump, a sealing strip is mounted on one side of the cover plate, an annular air groove is arranged on the sealing strip, a communication groove communicated with the annular air groove is arranged on the cover plate, an air suction pipe communicated with the communication groove is mounted on the cover plate, and the air suction pipe is communicated with the annular air groove. A one-way valve is installed at the other end of the air suction pipe, a threaded pipe is installed at the air outlet end of the one-way valve, a communicating hose is installed at the air suction end of the air pump, and one end of the communicating hose is detachably connected with the threaded pipe. The cover plate is forcibly squeezed on the water dispenser, then a communication hose on an air pump is connected with a threaded pipe, the air pump is started to pump out air in an annular air groove, and therefore the cover plate is adsorbed on the water dispenser, the effect of sealing the gap between the cover plate and the water dispenser is achieved, the adsorption capacity of the sealing strip is enhanced, and the sealing effect is improved. And the cover plate is mounted more firmly.

The invention belongs to the technical field of bin detection equipment, and discloses bin detection equipment with a self-cleaning function, which comprises a floor and an automatic guide vehicle placed on the floor. Through cooperation of the cleaning assembly, the power assembly and other structures, the power assembly pulls a steel wire rope through a first gear, the air tank is in a rotating state, the sealing plate reciprocates, when the sealing plate moves towards one side, a first one-way valve on the side is in an open state, and the air tank conveys air into a sponge strip through the first one-way valve and an air groove; and finally, gas is sprayed outwards through gaps in a sponge strip, so that dust on the two-dimensional code is easier to fall off, a gas tank drives the gas tank to sweep the edge of the two-dimensional code, the dust outside the two-dimensional code is absorbed into the gas tank through a flow dividing shell and a first notch in the outer portion of the flow dividing shell, and finally the dust is collected by a storage assembly. Therefore, the dust in the gap between the two-dimensional code and the floor is reduced, and the possibility that the two-dimensional code falls off or is curled is reduced.

The present application relates to oiling device technical field, and disclose a spring steel wire oiling device, including oiling device, the oiling device includes shell, the front of shell is equipped with control device, the inside of control device is provided with control module, the edge of shell bottom is equipped with base, the right side of shell bottom is equipped with oil recovery device, the middle position of shell top is equipped with oiling mechanism, the inside of shell is provided with conveying device, the shell is with shell on the same plane, the left side of shell top is equipped with gas conveying mechanism, the inner wall of shell right side is equipped with cleaning mechanism, the present application is equipped with gas conveying mechanism and cleaning mechanism, is favorable for the hot air generated by gas conveying mechanism to be transported to the surface of water absorption plate through gas tank, spray gun, accelerates the dehydration efficiency of water absorption plate, is favorable for control module to analyze whether spring steel wire surface meets production standard through real-time air pressure data change.

The utility model provides a hydrogen leakage detection early warning device for a hydrogen pipeline, which relates to the field of pipeline hydrogen transportation and comprises a detector body and a hoop which is arranged on the outer side of the pipeline and used for sealing a flange connecting end, and a gas groove for accommodating a pipeline flange and a valve flange is arranged on the periphery of the inner side of the hoop. The detection end of the detector body is connected to the inner sides of the upper portions of the hoops in a sealed mode, after the detector body is connected to the inner sides of the hoops, the detection end of the detector body extends into the air groove, through the arrangement of the two hoops, the connecting end of the valve flange and the pipeline flange can be sealed, and meanwhile the detection end of the detector body can be isolated in the hoops; not only can a sensor in the detection end of the detector body be prevented from being covered and polluted by dust, but also the phenomenon that trace leakage between the pipeline flange and the valve flange is blown away by wind and cannot be timely detected and alarmed by the detector body can be prevented.

The invention belongs to the technical field of waste gas treatment, and particularly relates to a low-temperature volatilization recovery process and equipment for organic waste gas. Comprising a shell; tube plates are fixedly mounted at the top and the bottom of the shell; a plurality of heat exchange tubes are fixed between the two tube plates; a water inlet cover is mounted at the bottom of the shell; a water outlet cover is mounted at the top of the shell; first circular plates which are uniformly arranged are arranged in the shell; second circular plates which are uniformly arranged are arranged in the shell; two first lead screws are jointly in threaded engagement with the multiple first circular plates; the multiple second circular plates are jointly in threaded engagement with two second lead screws. A rectangular air groove is formed in the side edge of the first circular plate; a circular air groove is formed in the middle of the second circular plate; by arranging the auxiliary assembly, a liquid film can be prevented from forming a heat insulation layer on the heat exchange tube, so that a cold source in the heat exchange tube is in direct contact with waste gas, and the condition that cold transfer is blocked is avoided.

This invention discloses a coalbed methane (CBM) gas-driven simulation experimental testing device, relating to the field of CBM extraction technology. It consists of a split-type testing chamber, with a control box installed at the bottom and an experimental shell assembled at the top, with a heat insulation layer sandwiched between them. The experimental shell is divided into a symmetrically arranged upper and lower chamber. A heat dissipation plate with an openable / closeable gas slot is fixed to the top of the outer side of the upper chamber. An upper inner shell and a lower inner shell are embedded within the internal space of the experimental shell, each containing an experimental furnace and a heating cylinder encased therein. The sidewalls of the testing chamber are connected to a first, second, and third storage chamber. Gas and liquid are directionally transported along conduits via a pump. Multi-directionally extendable pusher assemblies are installed on both sides of the experimental furnace to simulate formation stress, accurately replicating the environment of the coal and rock strata, thus making the test data more precise.

The application belongs to the technical field of warehouse exploration equipment, and discloses warehouse exploration equipment with a self-cleaning function, which comprises a floor and an automated guided vehicle placed on the floor. The application is characterized in that a cleaning assembly and a power assembly are arranged in cooperation. The power assembly pulls the steel wire rope through the gear, and the gas tank rotates. The sealing plate reciprocally moves. When the sealing plate moves to one side, the one-way valve on the side is in an open state. The gas tank sends air into the sponge strip through the one-way valve and the air groove. Finally, the air is sprayed outside through the gap in the sponge strip, so that the dust on the two-dimensional code is more easily removed. The gas tank also drives the gas tank to clean the edge of the two-dimensional code. The dust outside the two-dimensional code is absorbed into the gas tank through the shunt shell and the first notch outside the shunt shell, and is finally collected by the storage assembly. In this way, the dust in the gap between the two-dimensional code and the floor is reduced, thereby reducing the possibility of the two-dimensional code falling off or rolling up.

The utility model discloses an MVR (Mechanical Vapor Recompression) concentration and evaporation device with a pretreatment function, which belongs to the technical field of evaporation and concentration equipment and comprises a preheating tank and a concentration and evaporation kettle, a front gas guide groove is arranged in the preheating tank, a rear gas guide groove is arranged in the preheating tank, and a plurality of heat exchange copper pipes are fixedly sleeved in an inner cavity of the preheating tank. According to the device, steam in the concentration and evaporation kettle is guided into the front gas guide groove in the side part of the preheating tank through the gas guide pipe, gas in the front gas guide groove enters the rear gas guide groove from the heat exchange copper pipe, and the steam in the inner cavities of the front gas guide groove and the rear gas guide groove is used for carrying out heat exchange on sewage on the side part of the inner cavity of the preheating tank; meanwhile, heat of flowing steam in the heat exchange copper pipe is used for heating sewage in the middle of the inner cavity of the preheating tank, the function of pretreating the sewage in the preheating tank is achieved, and meanwhile the uniformity of sewage pretreatment heating is guaranteed.

The outer ring fire cover comprises a cover body and a gas containing groove, the inner wall face of the cover body comprises a first arc face located on the front side of a fire hole in the first direction, and the first arc face extends to an orifice of the fire hole from the end, close to the radial inner side of the outer ring fire cover, of a notch of the gas containing groove. The first cambered surface is bent and inclined towards the radial outer side of the outer ring fire cover from bottom to top in the first direction; the first cambered surface is provided with a plurality of curved surface sections with different bending radiuses in the first direction, and the bending radiuses of the plurality of curved surface sections are gradually increased in the first direction, so that a wall attachment effect is generated when mixed gas flows in the gas containing groove, vortexes and turbulent flows are reduced, gas mixing is more uniform, combustion is more sufficient, and emission of carbon monoxide is reduced. The first direction is the direction from the end, close to the radial inner side of the outer ring fire cover, of the notch of the gas containing groove to the end, away from the radial inner side of the outer ring fire cover, of the notch of the gas containing groove along the inner wall face of the cover body. The wall attachment effect reduces airflow resistance, reduces energy loss and improves heat efficiency.

The utility model discloses a hydrogen buffering pressure stabilizing storage tank for hydrogen production equipment, which relates to the field of storage tanks and comprises a storage tank and a sealer, the sealer comprises a first sealing disc, a sealing ring is arranged in the first sealing disc, a gas groove is arranged in the sealing ring, a plurality of groups of vent holes are arranged on the inner wall of the gas groove, and the vent holes are communicated with the first sealing disc. The end of the vent hole is connected with a connecting hole, an air pipe is fixed to the top of the first sealing disc, and an air bag is installed at the end of the air pipe. When air leakage occurs at the joint of the two flange plates, hydrogen permeates into the air grooves in the inner wall of the first sealing plate, the hydrogen in the air grooves flows into the air bag through the vent holes, the connecting holes and the air pipes, and the air bag is enlarged due to gradual increase of air in the air bag. And people can conveniently and easily know the gas leakage condition of the flange plate, and the gas bag can collect leaked hydrogen, so that the harm caused by hydrogen leakage is reduced.

The utility model relates to a duck feed granule screening equipment, effectively solved the problem that feed screening dust disperses and the screen mesh is blocked, the technical scheme that solves includes horizontal transverse outer tube, screen cylinder and inner tube, and the screen cylinder coaxial installation is in the outer tube, and the inner tube coaxial installation is in the screen cylinder, and the outer tube and the inner tube are fixed, and the screen cylinder can rotate about the axle, the lateral wall of inner tube is evenly distributed with a plurality of air holes, and the top lateral wall of outer tube is opened with an axial air groove, and the air groove is covered with a gas tank fixed on the lateral wall of outer tube, and the inner tube is connected with the gas tank between the gas pipe, and the gas pipe is equipped with a gas pump and a collection tank, and the collection tank is equipped with a dust filter screen, the utility model integrates the back blow and dust removal, realizes the back blow and dust removal function at the same time, and the structure is simplified, and the integration level is high.

The utility model relates to the field of detection devices, in particular to an inner wall gas groove steel pipe sealing detection device for pneumatic transmission, which comprises a steel pipe clamping plate, a gas-tight gas tank and a sealing gas injection assembly, one side of a steel pipe clamping and fixing plate is communicated with an airtight gas tank, a sealing gas injection assembly is installed in the steel pipe clamping and fixing plate, a secondary sealing ring is installed on the inner wall of a gas inlet sealing block, the center of the gas inlet sealing block is communicated with a gas injection pipe, push rods are symmetrically welded to the outer portion of a sealing connecting block, and an air cylinder is installed at one end of each push rod. The piston end of the air cylinder is connected to the push rod, a first-stage sealing ring is arranged at the end, away from the push rod, of the sealing connecting block, and when the air cylinder pushes the sealing connecting block to be close to the steel pipe, the first-stage sealing ring firstly plays a role to preliminarily block the path of gas leaking from a port of the steel pipe; the device can be tightly attached to an air groove in the inner wall of the steel pipe, and air is prevented from reversely leaking from an air inlet part.

The pneumatic diaphragm valve comprises a valve body, an annular valve seat, a diaphragm and an actuator, the actuator comprises a cylinder shell, a piston rod assembly arranged in the cylinder shell and a spring elastically abutting against the piston rod assembly, and the pneumatic diaphragm valve further comprises a first installation seat arranged in the cylinder shell. The first mounting seat comprises an annular connecting part and an annular inner extending part which is axially arranged at the radial inner end of the annular connecting part in an extending manner; the piston rod assembly comprises a gas channel, a rod body and a piston fixed to the outer wall of the rod body, and the rod body slidably penetrates through the inner side of the annular inner extending part. Due to the arrangement of the annular inner extension part, a guide surface of the first mounting seat to the rod body is added, the rod body can be effectively guided and prevented from inclining, meanwhile, driving gas is easier to enter a larger initial driving surface of a driving gas groove acting piston which always exists, and the pneumatic diaphragm valve has higher response speed and longer service life.

The application discloses a high-efficiency energy-saving back-blowing dust collector bag and a dust cleaning method thereof, and relates to the technical field of bag-type dust collectors. The high-efficiency energy-saving back-blowing dust collector bag and the dust cleaning method thereof are characterized by the cooperation of a rotary driving assembly, a circular pipe, a plurality of U-shaped mounting frames, a double-port bag piece, an upper cover plate and an ash discharging partition plate. The circular pipe is driven to rotate, and the single double-port bag piece is communicated with the circular pipe under the arrangement of the gap pipe and the second gas groove. When dust-containing gas is introduced into the air inlet pipe, the purified gas is transmitted above the upper cover plate under the arrangement of the first gas groove. The double-port bag piece connected with the circular pipe is contracted while the purified gas is discharged through the circular pipe, the air outlet pipe and the air outlet, and the double-port bag piece is reset along with the rotation of the circular pipe, so that the dust is back-flushed and automatically cleaned, and the dust removal efficiency of the device is improved.

The invention discloses an RTO waste gas treatment system based on dynamic temperature field regulation and control, relates to the technical field of waste gas treatment, and aims at the cross-linking influence process of temperature and pressure generated by combustion characteristics in an RTO waste gas treatment process, in particular to additionally arranging a ventilation sleeve and a ventilation pipe column according to the flowing process of waste gas in each independent gas bin. The process comprises the following steps: firstly, limiting the closed / circulating state of a ventilation sleeve through a ventilation pipe column, on the basis of clearance gas plates in the ventilation pipe column, extruding each clearance gas plate by utilizing the gas pressure in the waste gas flowing process to essentially drive a plurality of clearance gas plates to directionally move, and secondly, limiting the flowing gas pressure of the waste gas by utilizing the structural characteristics of a U-shaped gas groove. And finally, the central tubular column serves as a temporary storage space, the waste gas flowing process is limited by actively changing the space volume, and the key purpose is to balance the temperature environment and the pressure environment in a pressure control mode.

The invention belongs to the technical field of boiler water level control, and discloses an intelligent boiler water level control device which comprises a boiler body, water supplementing pipes are fixedly connected to the two ends, close to the bottom, of the boiler body in a penetrating mode, a boiler water level gauge is fixedly connected to the outer wall of one end of the boiler body, and a water level control part is arranged in the boiler body; when water rises, the buoyancy water plate is stressed to extrude the corrugated pipe, extrusion air is generated in the corrugated pipe, then air generated in the corrugated pipe enters the hollow whistle body through the special-shaped air pipe, and when air flow enters the cavity from a gap between the hollow whistle body and the whistle sheet, the air flow encounters a trapezoidal air groove formed in the hollow whistle body, so that the air flow enters the hollow whistle body. When the whistle is in use, the air flow is divided into two strands by the 45-degree slope surface at one end of the trapezoidal air groove, so that sound is generated, the air entering the hollow whistle body cavity can generate a sound amplification effect through the vibration of the air, and in time, the sound generated by the hollow whistle body can be used for warning a worker.

The invention provides a gas supply device of a double-cathode coating mechanism, and relates to the technical field of glass coating equipment, the gas supply device comprises a gas supply box located between two cathode targets, the gas supply box comprises a box body and a gas supply strip inserted in the box body, gas outlet channels are formed between the two side faces of the gas supply strip and the two parallel inner wall faces of the box body respectively, and the gas outlet channels are communicated with the gas supply strip. A flow guide frame is fixedly arranged at the bottom of the air supply strip, air at the tail end of the corresponding air outlet channel is guided to the cathode target on the same side through the flow guide frame, two inner side air grooves are formed in the air supply strip, an outer side air groove is formed in the outer side of each inner side air groove, and the inner side air grooves and the adjacent outer side air grooves are identical through a plurality of first ventilation holes. The outer side air grooves are communicated with the adjacent air outlet channels through a plurality of second vent holes, and the inner side air grooves and the outer side air grooves are respectively connected with an air source. The method has the advantages of being capable of meeting the requirement for double-cathode coating and the like.

The utility model discloses a bioreactor, adopt aeration part to the inside of container is supplied with gas, and aeration part surrounds the circumferential direction of impeller, make the gas of the gas output surface output of aeration part can be even diffusion to the inside of container by impeller fast, set up several gas guide plates in the inside of aeration part to form several gas grooves with the communication of air inlet, and every gas groove has corresponding air outlet hole, further improves the evenness and dispersity of air outlet, to promote gas to be beaten by impeller in time and scatter, simultaneously, set up the communication groove in the gas cavity, and the communication groove forms the cross -communication part with several gas grooves, improves the speed and evenness of gas from air inlet and enters each gas groove, makes the air output of every air outlet hole as consistent as possible, and the gas guide plate along the gas dissipation direction extension still can support the space in the gas cavity, is favorable to reduce the possibility that the first wall with air outlet hole happens deformation collapse, to guarantee that gas disperses smoothly.

This utility model relates to the field of moxibustion fumigation bed technology, and provides an air groove protection device for a moxibustion fumigation bed, comprising: a bed frame; a breathable plate, the breathable plate being fixedly installed on the top of the bed frame; air grooves, the air groove array being formed on the surface of the breathable plate; and a shielding structure, the shielding structure being disposed on the bed frame to shield the top of the breathable plate; the shielding structure includes a support plate, a bidirectional screw movable groove hinged baffle, and a reset unit. Compared with the prior art, the beneficial effects of this utility model are: in use, by setting a shielding structure on the bed frame, the top of the breathable plate can be shielded when in use, and it is easy to open; and by setting a reset unit, the shielding structure automatically closes when it is released from its self-locking state, thereby reducing the occurrence of dust entering the air groove and affecting the use effect of the breathable structure.