177results about How to "Prevent spraying" patented technology

The invention relates to a spraying control method and a spraying machine. The method comprises the steps that S1, target crop image information in a target area in front of a spraying rod is obtained in real time; s2, determining a target nozzle and a corresponding periodic working time parameter according to the target crop image information; and S3, when the spraying rod reaches the target area, the target spraying head performs spraying according to the corresponding periodic working time parameters. According to the invention, the information of the crops to be sprayed in front is acquired in real time, the spray rod is adjusted according to the growth height of the crops, and the target spray head and the working parameters are determined according to the crop distribution, so that the pesticide spraying efficiency and accuracy are greatly improved, and the problem of low pesticide utilization rate is solved.

The utility model provides a traditional Chinese medicine retention enema device for an enterostomy patient, and belongs to the technical field of medical instruments. The device comprises a liquid filling assembly and an antifouling assembly, the liquid filling assembly comprises an enema bag and an infusion tube, and the infusion tube is provided with a Murphy dropper and a flow regulator; the anti-fouling assembly comprises an ostomy bag, and the ostomy bag comprises a bag body and a base plate. A through hole is formed in the chassis; a mounting hole is formed in the bag body, and a sealing piece is arranged in the mounting hole in a matched mode. An insertion channel used for inserting an infusion tube is arranged in the sealing piece, and the tail end of the infusion tube enters the enterostomy through the insertion channel. The infusion tube is further sleeved with a flexible tube, one end of the flexible tube penetrates through the insertion channel of the sealing piece and extends into the enterostomy, and the other end of the flexible tube is arranged outside the sealing piece. And the other side of the fixed pressure plate is also connected with a chock plug. The device is simple to operate and convenient and quick to use; the ostomy bag is clean and transparent, and ostomy conditions are easy to observe; discharge is all in the ostomy bag, peculiar smell is small, pollution is avoided, and the comfort level of a patient is improved.

The utility model belongs to the technical field of cup covers, and particularly relates to a double-drinking cup cover which comprises a cover body and a turning cover which are movably connected, a locking piece for controlling the cover body and the turning cover to be relatively fixed is movably arranged on the cover body, a drinking seat is arranged on the cover body, the upper end of the drinking seat extends to form an annular convex edge, and a direct drinking groove is formed by surrounding of the annular convex edge. A water passing hole is formed in the bottom of the direct drinking groove, a sucking hole is formed in the annular protruding edge, a straw hole communicated with the sucking hole is formed in the cover body, and the straw hole and the sucking hole are vertically formed, axially staggered and connected through a transversely-extending transition hole. And a sealing piece for sealing the direct drinking groove and the sucking hole is arranged on the turning cover. The utility model aims to provide the double-drinking cup cover which is simple in structure and convenient for a user to use.

The utility model relates to a liquid outlet mechanism of a hand press type sprayer, which comprises a seat body, the top of the seat body is provided with a # imgabs 0 # type liquid outlet channel and a compression cavity, and the compression cavity is arranged on the inner side of the # imgabs 1 # type liquid outlet channel and communicated with the # imgabs 2 # type liquid outlet channel. The cover shell is detachably fixed to the outer portion of the # imgabs3 type liquid outlet channel, the liquid inlet pipe is connected to an opening in the root of the # imgabs4 type liquid outlet channel in a sealed mode and located below the base body, the piston is movably connected to the interior of an opening in the end of the compression cavity in a sealed mode, and the elastic pressing assembly is arranged between the base body and the piston. The elastic pressing assembly comprises a handle and a connecting rod unit; the handle is rotatably connected below the end part of the # imgabs5 type liquid outlet channel; the connecting rod unit is movably connected between the root part of the handle and the top of the seat body so as to enable the handle to have an elastic resetting function; the end part of the piston is universally connected to the rear side of the middle part of the handle; according to the utility model, the handle can be effectively prevented from being pressed due to misoperation under the condition that spraying is not needed, so that inconvenience in daily use is eliminated; in addition, the liquid inlet speed is increased, so that the using effect is improved.

The invention discloses a construction method and construction equipment for reinforcing a permafrost region roadbed by utilizing powder spraying piles, and relates to the technical field of highway construction, the construction method comprises the following steps: step 1, two rows of cement powder spraying pile waterproof curtains are longitudinally arranged at the slope toe of the existing roadbed through a powder spraying pile drilling machine, the pile diameter of the cement powder spraying piles is 50cm, the pile distance is 40cm, and the pile length is 6m; secondly, in order to achieve water stop and seepage prevention of the powder spraying piles, 10 cm is reserved for the cement powder spraying piles for inter-pile meshing control; a raw powder spraying pile technology is applied to water stopping on the two sides of the plateau frozen soil roadbed, longitudinal cement powder spraying piles are additionally arranged on the two sides of a roadbed slope toe in the original technology, the cement powder spraying piles are used for meshing, the influence of water on the roadbed after underground frozen soil outside the roadbed melts is prevented, and the water stopping and water resisting effects are achieved in the mode of reducing underground water flowing and heat exchange. Meanwhile, dewatering wells are arranged on two sides of the roadbed to reduce moisture in the roadbed. The process enables the roadbed structure to be more stable, and prolongs the service life of the road.

The utility model discloses a high-performance PET release film coating machine with a uniform coating structure, which comprises a base, rotating guide rollers are mounted on the upper surfaces of two ends of the base, a closed shell is fixedly arranged on the upper surface of the base, a scraping backflow mechanism is arranged on the base, and the scraping backflow mechanism is connected with the guide rollers. And the utilization rate of the coating is increased through collection and reinjection of the coating in the coating process. According to the high-performance PET release film coating machine with the uniform coating structure, the mode that the spray heads are distributed in an inclined and staggered mode is adopted, so that the situation that the adjacent spray heads influence each other in the spraying process is avoided, the instant spraying amount is increased while uniform spraying is guaranteed, the situations that spraying is missed and the spraying thickness does not reach the standard are avoided, and the spraying efficiency is improved. According to the paint spraying device, the overall spraying efficiency is improved, after spraying is completed, paint is scraped off through the V-shaped first scraping plate, redundant paint can flow towards the two sides along the inclined face of the first scraping plate and is recycled, and therefore paint waste cannot be caused while saturated spraying is conducted.

The invention discloses a steel structure painting device which comprises two conveying mechanisms arranged in parallel and a spraying mechanism erected over the two conveying mechanisms. The conveying mechanism comprises two slideways arranged in parallel, the top of each slideway is rotatably connected with a plurality of conveying rollers at equal intervals in the length direction of the slideway, two movable frames capable of reciprocating in the length direction of the beam frames are arranged between the upper ends and the lower ends of the two beam frames respectively, and each movable frame is fixedly provided with a spray gun set; the spray gun set is composed of a plurality of spray guns arranged side by side, spray heads of all the spray guns face the middle area of the top end between the two conveying mechanisms, a servo motor drives a transmission gear and a chain, synchronous reciprocating motion of the two movable frames is achieved, and the height of the U-shaped tray is adjusted in cooperation with an air cylinder. The spray gun group can move in a large range along the beam frame and dynamically adjust the spraying distance with the workpiece to cover the whole area of the surface of the steel structure, so that spraying leakage or excessive spraying is avoided, and the coating uniformity and the painting efficiency are remarkably improved.

The utility model relates to the technical field of medical instruments, and discloses a novel vein puncture bloodletting needle with drainage and blood storage functions, which comprises a needle head, the needle head can be designed into a large model, a medium model and a small model, A scale marks are arranged on the surface of the needle head, and a threaded cylinder is fixedly connected to the top of the needle head. The interior of the threaded cylinder is in threaded connection with a drainage assembly. According to the novel blood-letting puncture needle for the bloodletting therapy, through the arrangement of the drainage assembly, when a medical worker conducts blood-letting puncture bloodletting therapy operation, the medical worker punctures a needle point into a vein of a punctured part, blood can enter a drainage tube through a through hole in a needle head through pressure in the vein, and finally the blood enters a drainage bag; blood backflow can be avoided through the anti-backflow structure of the drainage bag, so that the bloodletting needle can collect blood of a patient, the blood is prevented from being sprayed to clothes and skin mucous membranes of an operator, and the exposure risk of medical staff is reduced.

The utility model relates to the technical field of glue spraying equipment, in particular to a glue spraying device for a sofa frame. The device comprises a groove-shaped assembly, the groove-shaped assembly is composed of a transverse top plate and two vertical baffles, and the two vertical baffles are connected with the transverse top plate in a sliding mode; the rope pulling mechanism is arranged on the transverse top plate and used for adjusting the distance between the two vertical baffles; the glue spraying assembly is arranged on the transverse top plate and used for spraying glue; and the glue scraping assembly is arranged on the transverse top plate and used for smearing the sprayed glue. According to the glue spraying device, the distance between the two vertical baffles can be adjusted through the pull rope and the reset spring, the glue spraying device can adapt to different sofa frames, the use range of the glue spraying device is widened, meanwhile, glue is prevented from being sprayed to other places through the design of the two vertical baffles, and protection on the working environment is improved.

An adapter, characterized in that it includes an adapter body, a cleaning liquid channel arranged on the adapter body, and a plug arranged on the adapter body and located next to the cleaning liquid channel, wherein the channel diameter at one end of the cleaning liquid channel corresponds to the diameter of the nozzle on the sprinkler, and the diameter at the other end of the cleaning liquid channel corresponds to the outer diameter of the air inlet of the pneumatic dental treatment instrument, and a cylindrical recess is arranged on the adapter body next to the other end of the cleaning liquid channel, and the diameter of the cylindrical recess corresponds to the outer diameter of the air outlet of the pneumatic dental treatment instrument, and the plug is arranged in the cylindrical recess, and the diameter of the plug corresponds to the inner diameter of the air outlet of the pneumatic dental treatment instrument. Compared with the prior art, the present invention has the advantages of preventing the cleaning liquid from being sprayed out from the air outlet of the pneumatic dental treatment instrument, and allowing the cleaning liquid to smoothly penetrate into the rotating parts.

The utility model provides a gluing gun nozzle for automobile production, which comprises a connecting pipe, one end of the connecting pipe is communicated with a glue supply pipeline, the other end of the connecting pipe and an inlet end of a gluing nozzle are communicated with a circular baffle, and the circular baffle is rotatably connected to the inner side of the connecting pipe and rotates in the radial direction; the control assembly is used for driving the circular baffle to rotate; and the limiting assembly is used for limiting movement of the driving assembly. The glue spraying device has the beneficial effects that the glue spraying work can be started only when the glue spraying nozzle is mounted on the connecting pipe in place, the problem of glue overflow caused by improper mounting in the mounting process of the glue spraying nozzle is prevented, and meanwhile, the problem that a switch of the glue spraying device is mistakenly touched in the mounting process of the glue spraying nozzle is avoided, so that the glue spraying work is not finished. And the problem that the glue is sprayed out when the gluing nozzle is not mounted completely is solved.

The invention provides novel injection type glycerine enema which comprises an injection assembly, and the injection assembly comprises an injection tube, a piston, a push rod, a push block, a nipple, a fixing ring, a sealing ring, a gradually-hardened tube, a cavity, an L-shaped plate, a clamping block, a flexible steel rope, a pull ring, a mounting block and a clamping groove. And a piston is connected to the inner wall of the injection tube in a sliding manner. The gradually-hard tube is inserted into a place where the injection tube is inserted, the push block is pushed to drive the push rod to move, the push rod drives the piston to slide on the injection tube, and liquid medicine is pushed in through the gradually-hard tube, outflow and injection caused by two-time extrusion of common glycerine enema are avoided through one-time injection of 20 ml, two-time mucosa damage is avoided, pollution caused by excrement back-pumping after extrusion is finished is avoided, and the injection efficiency is improved. The pull ring is pulled leftwards, the pull ring drives the clamping block to be separated from the clamping groove through the flexible steel rope, the sealing ring is moved to take down the gradually-hard tube, and the gradually-hard tube is disinfected and cleaned respectively, so that the comfort degree is improved, the rectal mucosa is not prone to being damaged, all liquid medicine can be pushed in in a pushing injection mode, and the liquid medicine is not left and wasted.

The utility model discloses a material guiding cylinder structure of a tobacco leaf boxing device, which comprises a rectangular support, four material blocking plates, four corner plates and four driving mechanisms, the tops of the four material blocking plates are respectively hinged to the rectangular support and enclose to form a material guiding channel, and a blanking port is formed at the bottom of the material guiding channel; the tops of the angle plates are hinged to the two adjacent striker plates, the inner side walls of the angle plates abut against the outer side walls of the striker plates, and the outer side walls of the angle plates and the outer side walls of the striker plates are used for abutting against the inner side walls of the cartons correspondingly; a driving mechanism is connected between every two adjacent angle plates and used for driving the two adjacent angle plates to be close to or away from each other. According to the guide barrel structure of the tobacco leaf boxing device, tobacco leaves can be effectively prevented from being sprayed out from an opening of a carton box during boxing, and the driving mechanism drives the two adjacent angle plates to be opened and closed, so that the baffle plates and the angle plates can tightly abut against the inner side wall of the carton box; and the risk that the tobacco leaves are sprayed out from a gap between the material baffle and the carton is reduced.

The present application discloses an integrated insulating glass gluing and cleaning system and process thereof, belonging to the field of glass production technology. It comprises a support; a transport mechanism; the transport mechanism comprises a transport roller rotatably arranged on the support; a gluing mechanism; a cleaning mechanism, which is arranged on one side of the transport mechanism, and the cleaning mechanism comprises a plurality of water pipes, and the plurality of water pipes are arranged above the transport roller, and the plurality of water pipes are connected to a water tank to spray toward the transport roller supporting the insulating glass after gluing. The present application adopts a plurality of cleaning rods and water pipes, which sprays cleaning liquid on the transport mechanism while cleaning impurities on the transport roller, thereby solving the problem of being unable to realize continuous transport of insulating glass and simultaneous continuous cleaning, thereby reducing production efficiency, and thus realizing the technical effect of continuously cleaning the sealant during the process of transporting the insulating glass.

The application discloses a potato disease and pest treatment device and a use method thereof in the technical field of disease and pest treatment, which comprises a treatment total site and multiple disease and pest control points uniformly arranged in a potato planting area, and the treatment total site is connected with the multiple disease and pest control points through conveying pipelines; the disease and pest control point is provided with a base and a liquid storage tank fixed to the top of the base, and the top of the liquid storage tank is connected with a liquid conveying mechanism; the top of the base is provided with a lifting mechanism, the lifting mechanism is connected with a rotating driving mechanism, and the outer side of the rotating driving mechanism is uniformly connected with multiple rotating pesticide spraying mechanisms in the circumferential direction; the multiple disease and pest control points are uniformly arranged to realize wide coverage, and the linkage design of the lifting mechanism and the rotating pesticide spraying mechanism can realize layered 360-degree annular pesticide spraying on different heights of potato plants; after pesticide spraying, the rotating pesticide spraying mechanism can be folded back to the original position, the space occupation is reduced, and the uniformity of pesticide spraying and the control effect are effectively improved.

The present application provides a kind of diuron granule moisture drying device, it is related to drying device technical field, including drying frame body and quartz heating tube, quartz heating tube is arranged on the inner wall of drying frame body, bottom support is arranged below the inside of drying frame body, the central position of bottom support top is equipped with heat dissipation cylinder, the bottom support top of heat dissipation cylinder outside is rotatably equipped with inner spiral and outer spiral, the diameter of inner spiral is less than outer spiral, hollow ring is arranged on the bottom support between inner spiral and outer spiral, clearance is left between the lower end of hollow ring and bottom support, the inside of drying frame body is equipped with rotating shaft.The slow rotation of inner spiral and outer spiral can lift the material originally located at the bottom to the upper, and drop from the upper end of hollow ring to the bottom, so circulation, not only can realize the mixing of material horizontal direction, but also can realize the mixing of up and down position, avoid the material located at the bottom is always not lifted, cause the problem of the material temperature of bottom to be too high.

The application discloses a kind of dry treatment desulfurization wastewater system and process flow, high-temperature hot flue gas of boiler induced draft fan outlet is used, dust removal is entered into evaporator coil heat exchange to realize brine concentration, and cooperate with damper to realize temperature rise in evaporator and reach crystallization temperature requirement, by concentrated liquid direct injection high-temperature air duct to carry out vapor-solid separation, then into dryer to carry out gas-solid high-temperature cyclone separation.The application is more reasonable in arrangement, has lower maintenance cost, has wider applicability in finished product production, has higher economic benefit, especially avoids chloride crystalline salt pollution ash, so that ash and chloride crystalline salt can be collected and utilized separately.

The application discloses a special stirring device for dry-mixed mortar production and relates to the technical field of building construction. The special stirring device for dry-mixed mortar production comprises a support, a roller is fixedly connected to the outer wall of the support, a motor is fixedly connected to the outer side wall of the support, a friction wheel is fixedly connected to the output end of the motor, the outer wall of the friction wheel is in contact with a transmission wheel, and the outer wall of the transmission wheel is in contact with the roller. The special stirring device for dry-mixed mortar production is used for placing mortar in the interior of a roller for mixing, reversing the roller for discharging after mixing, and then conveying water through a water inlet pipe, so that water flows uniformly through water outlet holes to be sprayed into the interior of the roller, and the purpose of uniform cleaning is achieved.

The invention relates to the technical field of fluorescent penetrant detection, and discloses a high-penetration-efficiency fluorescent penetrant detection line penetration tank which comprises a shell, a driving motor, a spray head assembly, a clamping assembly and a linkage assembly. A guide frame; the guide plate is mounted in the two guide frames in a sliding manner; the mounting plate is fixedly mounted on the guide plate; the fixed column is fixedly mounted at one end of the mounting plate; the sliding cylinder is arranged on the fixed column in a sliding and sleeving manner; the plurality of connecting plates are arranged on the sliding cylinder; the smearing plate is fixedly mounted at one end of the connecting plate; through relative sliding of the sliding cylinder and the fixed column, the system can adapt to samples with different surface shapes and flatness, the spray head assembly always keeps the optimal spraying height, it can be ensured that fluorescent materials are uniformly and sufficiently sprayed, the fluorescence permeation efficiency is improved, a smearing plate can make fluorescent dye uniformly scraped and pressed to the surfaces of the samples, and the fluorescence permeation efficiency is improved. The detection quality can be improved, and the whole detection process is more efficient.

The utility model belongs to the technical field of articles for daily use, and particularly relates to a detachable and washable cup cover and a water cup and a thermos bottle formed by the detachable and washable cup cover. Comprising a cover body and an inner plug assembly detachably arranged in the cover body, a sealing cover is arranged at the bottom of the cover body, and the inner plug assembly is detachably connected with the cover body and the sealing cover through elastic fasteners; a movable buckling part is convexly arranged on the outer side of the elastic fastener, a clamping groove matched with the movable buckling part is concavely formed in the cover body, and the movable buckling part is buckled in the clamping groove or loosened from the clamping groove; a spinning protrusion is arranged at the bottom of the elastic fastener, a spinning groove is formed in the position, corresponding to the spinning protrusion, of the upper end face of the sealing cover, and the spinning protrusion is rotationally clamped in the spinning groove or rotationally separated from the spinning groove; the cover body, the inner plug assembly and the sealing cover can be detached and separated through the elastic buckle assembly, the cover body, the inner plug assembly and the sealing cover can be detached and cleaned by hands without tools, the sanitation problem that a traditional kettle cover is integrated and cannot be detached, and consequently the kettle cover is difficult to clean is solved, and the sanitation hidden danger is greatly reduced from the source.

The present invention relates to the technical field of bridge maintenance equipment, and specifically discloses a prefabricated box girder maintenance device, including a device body, wherein the device body includes a bearing mechanism and a spraying mechanism, the bearing mechanism is configured as a plurality of groups, and is arranged in an array along the length direction of the box girder, each group of the bearing mechanism includes a first support frame and a second support frame, a first driving component is provided on the bearing mechanism, the first driving component is used to drive the plurality of groups of bearing mechanisms to move along the length direction of the box girder, and to arrange the plurality of groups of bearing mechanisms equidistantly, so that the bearing mechanisms have a storage state and an expanded state, the spraying mechanism is configured as a plurality of groups, each group of the spraying mechanism includes a water pipe and a second driving component, a plurality of nozzles are provided on the water pipe, and the second driving component is used to drive the water pipe to rotate around its own axis to increase the spraying area of ​​the nozzle; the present invention can adapt the device body to the maintenance of box girders of different lengths through the expansion degree of the bearing mechanism, and can improve the maintenance efficiency.

The utility model provides an automatic monitoring and processing device for breakage of a polish rod of a pumping unit, which is provided with a tension sensor, the upper end of the tension sensor is connected with a horse head of the pumping unit, the lower end of the tension sensor is connected with a beam hanger, and the lower part of the beam hanger is connected with the polish rod; the polish rod sealing device is provided with a light sensation sealing device, the polish rod sealing device is installed on a well mouth, a polish rod is inserted into the polish rod sealing device, and the polish rod sealing device is provided with an automatic clamping device. The automatic clamping device is further provided with a controller, the controller is connected with the tension sensor and the automatic clamping device, the tension sensor transmits a captured tension value to the controller, and the controller controls the automatic clamping device to operate according to the tension value. The tension sensor is arranged between the beam hanger and the horse head of the oil pumping unit, the tension value when the horse head is lifted each time is automatically monitored through the tension sensor, when the tension value is abnormal, the controller controls the automatic clamping device to operate, the broken polished rod is clamped in the polished rod sealer through the automatic clamping device, and the polished rod is effectively prevented from falling into a well after being broken.

The present application relates to sewage treatment technical field, especially to pig farm manure treatment system, including treatment pool, partition, feeding tank, discharge pipe and so on, at least two partitions are arranged in the treatment pool, the feeding tank is installed in the treatment pool, the discharge pipe is connected in the treatment pool, one side of the discharge pipe is communicated with the feeding tank, the other side of the discharge pipe is located in the filtered water storage space, the present application can stir the manure and sewage by the cooperation of feeding tank, discharge pipe, sliding plate I, sliding plate II, bellows, treatment mechanism, sealing mechanism, stirring and heating mechanism and moving mechanism, and can heat the sewage, so as to accelerate the biogas fermentation of manure and sewage, and can also automatically add carbon source or nitrogen source in the sewage in the closed environment, so as to maintain the suitable carbon-nitrogen ratio in the sewage, improve the gas production efficiency of the sewage, which is not only simple in operation, time and labor saving, but also can prevent the leakage of biogas in the sewage storage space.

The utility model discloses a cigar tobacco plant topping device, which belongs to the technical field of topping devices and comprises a cylinder. The front side of the cylinder is provided with a sealing cover, and the rear side is not provided with a sealing cover; an arc baffle is fixedly connected to the rear portion of the barrel. The cylinder and the arc baffle are jointly connected with a topping and bud inhibition integrated assembly. The cylinder body, the arc baffle and the topping and bud inhibition integrated assembly are jointly connected with a tobacco stem clamping assembly; the bottom end of the barrel is fixedly connected with an arm binding assembly. By means of the mode, the topping process and the bud inhibitor spraying process can be carried out at the same time and controlled in a unified mode; meanwhile, the suckercide can be quantitatively sprayed as long as parameters such as the inner diameter of the syringe are adjusted; in the whole process of topping and suckercide spraying, tobacco stems are clamped and fixed all the time, and therefore the situation that the suckercide is not accurately sprayed to tobacco plants is avoided; the whole topping device can be fixed on the forearm of an operator, so that the fatigue of the hands of the operator is relieved.

The invention discloses a method for optimizing the painting path of an automated painting robot, which relates to the field of automation technology, and comprises the following steps: obtaining a three-dimensional geometric model of a hull through a laser scanning device, and performing curvature analysis to generate partition data of curvature information of each hull area; performing preliminary path planning according to the partition data to obtain a preliminary painting path; executing a painting task based on the preliminary painting path, and detecting coating thickness data of the painting area in real time; correcting the preliminary painting path in real time according to the detected coating thickness data to generate a new painting path; detecting the paint coverage rate of the painting area in real time, judging the coverage uniformity of the painting area, and marking the unevenly covered painting area; adjusting the painting path again through the coverage rate detection data to generate a corrected final painting path, and using the final painting path to execute the painting task on the next hull; adjusting the painting path in real time to make the painting process more flexible and efficient, and improve the stability of the painting quality.

This invention belongs to the technical field of gas purification equipment, specifically relating to a molecular sieve adsorption tower for CO2 adsorption. The tower includes a tower body, within which, from the inside out, are arranged a central air channel, a molecular sieve layer, an alumina layer, and an outer air channel. A pressing mechanism is provided at the top of the tower body for pressing the molecular sieve layer and the alumina layer respectively. The pressing mechanism includes a drive plate that can move up and down along the top of the tower body. Below the drive plate is an inner pressing structure for pressing the molecular sieve layer, and outside the inner pressing structure is an outer pressing structure for pressing the alumina layer. As the drive plate descends, the inner and outer pressing structures simultaneously press the molecular sieve layer and the alumina layer respectively. This invention provides a molecular sieve adsorption tower for CO2 adsorption capable of separately pressing the sedimentation of the alumina layer and the molecular sieve layer.

The utility model discloses an aerosol fire extinguishing device which comprises a shell and a firing line, one end of the shell is provided with a nozzle and a lead through hole, a sealing layer is arranged in the shell, the sealing layer is used for sealing the nozzle, an ignition agent and an aerosol generating agent are arranged in the shell, the ignition agent and the aerosol generating agent are sealed in a sealing bag, and the sealing bag is used for sealing the ignition agent and the aerosol generating agent. A cooling layer is further arranged in the shell and located between the nozzle and the sealing bag, and the ignition wire sequentially penetrates through the wire penetrating hole, the sealing layer and the cooling layer and stretches into the sealing bag to make contact with the ignition agent. The aerosol fire extinguishing device has the beneficial effects that the aerosol fire extinguishing device is damp-proof, long in storage life and capable of spraying out a low-temperature aerosol fire extinguishing agent.