108results about How to "Exhaust fast" patented technology

The utility model discloses a vertical automatic exhaust valve, and mainly relates to the field of exhaust valves. Comprising a valve body, the bottom of the valve body is communicated with a pipeline, a valve cover is arranged on the valve body, a valve bonnet is arranged at the top of the valve cover, a floating ball is movably arranged in a cavity of the valve body, a T-shaped valve element is arranged in the valve bonnet in a sliding mode, the top of the valve element can block the valve cover, the bottom of the valve element is connected with the floating ball, and an exhaust hole is formed in one side of the valve bonnet. The exhaust valve has the advantages of being free of complex structures and small parts, not prone to being blocked and rusted, capable of achieving rapid exhaust and rapid air suction, not prone to being blocked, good in sealing effect, capable of avoiding the phenomenon of water leakage and more convenient and practical, and the exhaust valve only exhausts air and does not drain water after the valve element is blocked.

The invention discloses a protective film pressing device and a use method thereof, and belongs to the technical field of protective film processing, the protective film pressing device comprises a cabinet placed above the ground, an unwinding roller is rotatably mounted on the upper surface of the left end of the cabinet, and a winding roller is rotatably mounted on the upper surface of the right end of the cabinet; a fixing frame is fixedly installed on the upper surface of the machine cabinet, a movable plate is arranged above the fixing frame, an air conveying assembly is connected between the fixing frame and the movable plate, a rotating frame is elastically and rotationally connected to the lower portion of the movable plate through a torsional spring, and an obliquely-arranged exhaust roller is rotationally connected to the lower end of the rotating frame. And a heat generation assembly for heating air is arranged on the inner side of the exhaust roller. According to the protective film pressing device and the using method thereof, the exhausting and pressing effects on the protective film can be improved through vibration, gas can be automatically conveyed to heat the protective film in the pressing process, and the exhausting and cleaning effects of the protective film are further improved.

The invention discloses a low opening and closing pressure difference safety valve for ultrahigh-temperature large-flow fuel oil steam media for spaceflight, which comprises a shell, an inlet pipe nozzle, an inlet locking nut, a large-flow valve core, a low-rigidity spring, a spring seat, a locking nut and an adjusting nut are arranged in the shell from front to back, and a flexible graphite sealing ring is embedded at the tail end of the inlet pipe nozzle. The large-flow valve element slides in the shell in the axial direction, and the front end of the large-flow valve element is designed to be an arc-shaped conical surface matched with an arc chamfer. The two ends of the spring abut against the spring seat and the tail of the large-flow valve element respectively, a safety valve exhaust hole is formed in the front end of the shell, and the safety valve exhaust hole is communicated with an inlet of the inlet pipe nozzle when the large-flow valve element is in a retreating state. The pressure relief function of a 380 DEG C ultra-high-temperature fuel oil steam medium can be achieved, the ultralow opening and closing pressure difference of 0.005 MPa under the dynamic and static environments is achieved, and the exhaust stability is guaranteed under the vibration and impact environments.

The invention relates to the technical field of floor casting, and discloses a nodular cast iron floor casting forming device which comprises a box body, a mold box and a box cover, the bottom of the box body fixedly communicates with a waste opening, the mold box is fixedly connected into the box body, and the box cover is arranged at the top of the mold box. The top of the box cover fixedly communicates with a feeding pipe, an exhaust assembly and a pushing assembly are arranged in the box body, a scraping assembly is arranged on the surface of the mold box, the mold box and the exhaust assembly are used in cooperation, a motor is started, the motor drives a half gear and a cam to rotate through a driving rod, the cam extrudes a first sliding barrel through a knocking plate, and the first sliding barrel is driven to rotate; when the cam makes contact with the knocking plate, the first spring retracts, when the cam does not make contact with the knocking plate, the first spring moves repeatedly due to shape recovery, vibration is transmitted to the interior of the mold box through the first fixing barrel, raw materials in the mold box are made to discharge gas through vibration, and therefore the effect of accelerating exhaust is achieved.

The utility model discloses an air path control system of an air cushion bed. The air path control system comprises an inflator pump, a silencing and filtering device, a massage valve assembly, a hardness adjusting valve assembly and an air pressure sensor which are sequentially connected in series, massage valve groups are arranged in the massage valve assembly, each massage valve group comprises a massage inflation valve and a massage exhaust valve, the massage inflation valve is a normally closed two-position three-way valve, the massage exhaust valve is a normally open two-position two-way valve, a working port of the massage inflation valve is connected with the massage air bag, and an air outlet of the massage inflation valve is connected with an air inlet of the massage exhaust valve; the hardness adjusting valve assembly is provided with a plurality of adjusting valve sets, each adjusting valve set comprises an adjusting inflation valve and an adjusting exhaust valve, the adjusting inflation valves are normally-closed two-position three-way valves, the adjusting exhaust valves are normally-closed two-position two-way valves, working ports of the adjusting inflation valves are connected with the adjusting air bags, and air outlets of the adjusting inflation valves are connected with air inlets of the adjusting exhaust valves. According to the utility model, air can be supplied according to the inflation and deflation requirements of the adjusting air bag and the massage air bag.

The utility model discloses an automatic flushing device for a closestool, which is characterized in that a movable conical ventilation sealing plug is arranged in an air inlet channel of an automatic flushing device, and when air enters the air inlet channel, the conical ventilation sealing plug is driven to move to block an air outlet, so that a conical flat folding air bag can quickly enter the air and stretch; the movable ejection block b is pushed to drive the movable ejection block a to realize two-stage progressive ejection action, and a flushing valve switch in a closestool water tank is pushed and pressed to realize automatic flushing of a closestool; the air inlet time is short, and the energy consumption of the air pump is low; after air intake is stopped, the flushing valve switch is reset to drive the conical flat-folding air bag to contract and reset, the conical ventilation sealing plug moves backwards under the action of exhaust pressure, the air outlet is opened for rapid exhaust, the conical flat-folding air bag retracts to be flat, triggering of the flushing valve switch of the closestool is stopped, flushing of the closestool is stopped, and waste caused by long-time flushing of the closestool is effectively avoided; meanwhile, after the closestool is installed, the function of the flushing pressing key on the water tank is not affected, and normal pressing flushing can still be achieved.

The invention discloses satin glaze, an antifouling and wear-resistant satin glazed tile and a preparation method of the satin glaze, and belongs to the technical field of ceramic production processes. By adopting the satin glaze formula of a matte system consisting of Ca, Mg, Ba, Zn and Sr, the use of high-temperature materials is reduced, and the vitrification degree of the glaze is improved, so that the anti-fouling satin glaze has strong anti-fouling capability. And while the glossiness and the antifouling capability are ensured, aluminum oxide is properly added to improve the wear resistance of the glaze surface. The glossiness of the prepared product measured by a glossiness meter is 10-15 degrees, the antifouling capability is good, the surface flatness is lower than + / -0.2%, the wear resistance reaches grade 4 2100 revolutions, and the glaze surface has a silky touch feeling.

The utility model discloses an auxiliary exhaust pillow, including one for human body kneels and lies in prone position posture air cushion, and air cushion is the flexible structure formed through the inflation in hollow part, the first support part is arranged in the center of air cushion, and the second support part is arranged in the tail part of air cushion, and air cushion is divided into two cavities through the first support part, and two cavities are first cavity and second cavity respectively, the first through -hole that is adapted to the outer contour of face is seted up in the first cavity of air cushion top portion position. Through design for human body kneels and lies in prone position using air cushion structure, and cooperate the support of first support part to abdomen, make that patient abdomen is in natural suspension or slight pressure state, combine the posture of knee chest position, significantly promote the movement and natural discharge of abdominal cavity residual gas to rectum direction, effectively alleviate postoperative abdominal distension and abdominal pain. And utilize the space of first cavity can conveniently use cell -phone, and the patient uses cell -phone and carries out office or entertainment.

The invention relates to the technical field of airflow silencing, in particular to an automobile airflow silencer which comprises a shell and a shell air inlet. The connecting pipe is connected to the inner wall of the air inlet of the inner shell in an inserted mode, and a rectangular or round hole communicated with the first inner cavity is formed in the outer wall of the connecting pipe. The air inlet pipe is connected to the inner wall of the air inlet of the shell in an inserted mode, and the air inlet pipe corresponds to the connecting pipe in position. The front end of the air outlet pipe penetrates through the outer shell air outlet and then is inserted into the inner wall of the inner shell air outlet, and a rectangular or circular hole communicated with the interior of the outer shell is formed in the outer wall of the lower end of the air outlet pipe. By improving the automobile airflow silencer, the automobile airflow silencer has the advantages of being reasonable in structural design, rapid in silencing, smooth in exhaust and capable of changing the exhaust sound effect, and therefore the problems and defects in the prior art and equipment are effectively solved.

The invention belongs to the technical field of detection devices, and provides a helium leak detection device for a rupture disk device of nuclear power equipment, the helium leak detection device comprises a gas inlet pipe, a gas outlet pipe, an inner cylinder, an outer cylinder and a detection assembly, the outer cylinder is sleeved in the inner cylinder, and the gas inlet pipe and the gas outlet pipe pass through the outer cylinder and are communicated with the inner cylinder; a detection pipeline is arranged on the side wall of the outer cylinder, and the detection assembly is connected with the outer cylinder through the detection pipeline. By optimizing the structural design of the air inlet pipe, the air outlet pipe, the inner cylinder body and the outer cylinder body, the inner cylinder body and the outer cylinder body are completely separated and have independent sealed spaces, meanwhile, segmented installation is not needed, the functions of rapid inflation and exhaust are achieved, the detection period is greatly shortened, and the working efficiency is improved.

The utility model belongs to the technical field of suppository vacuum leak detection equipment, and particularly relates to a suppository rapid vacuum leak detection device which comprises a working table, a pressure display instrument and a first supporting table are fixedly connected to the upper end of the working table, a vacuum cover is placed at the upper end of the first supporting table, and a second supporting table and a pressure detector are fixedly connected to the upper end of the first supporting table. The second supporting table is located in the center of the upper end of the first supporting table, a first extrusion mechanism and a second extrusion mechanism are connected to the upper end of the first supporting table, the first extrusion mechanism is used for extruding the left end and the right end of a suppository, and the second extrusion mechanism is used for extruding the front end and the rear end of the suppository; the lower end of the workbench is fixedly connected with a vacuum suction pump, the output end of the vacuum suction pump is fixedly connected with a connecting pipe, and the connecting pipe penetrates through the workbench and the first supporting table. The suppository leak detection device can quickly detect the leak of the suppository, and improves the working efficiency.

The invention discloses a low-damping type matrix overflow-discharging vacuum gypsum mold forming mold and a casting method, the low-damping type matrix overflow-discharging vacuum gypsum mold forming mold comprises a mold body and overflow-discharging capillary tubes, and the overflow-discharging capillary tubes are inserted into the mold body in a sliding mode; the multiple overflow discharging capillary tubes are arranged in an array mode. According to the low-damping type matrix overflow discharging vacuum gypsum mold forming mold and the casting method, the overflow discharging capillary tubes are arranged, so that the overflow discharging capillary tubes and the gypsum mold are combined into a whole in the gypsum mold forming process, the demolding resistance of the gypsum mold is reduced, and the gypsum mold is complete and not prone to being damaged; and in the gypsum mold dewaxing roasting process, the phenomena of overflow hole blockage and crack do not occur, so that the final finished product quality is improved.

The present invention relates to an exhaust device, and in particular to a quick exhaust device for a silo, the quick exhaust device for a silo comprising: a filter assembly, the filter assembly comprising a filter element and a breathable cloth; the inner cavity of the filter element is communicated with the inner cavity of the silo, and the filter element is provided with a first exhaust hole that communicates with the air inside and outside the filter element; the breathable cloth is sleeved on the outside of the filter element, and the breathable cloth is sealed and connected to the outer wall of the filter element, and the first exhaust holes are all located inside the breathable cloth; an outer cover assembly, the outer cover assembly is located outside the filter assembly, the outer cover assembly comprises a shell and a partition member, and the shell is provided with a first downward opening; the partition member is arranged between the filter assembly and the first opening of the shell, and the partition member is provided with a second exhaust hole. The outer cover assembly is arranged outside the filter assembly of the present invention, which can effectively prevent dust from being sprayed into the air with the airflow, and is safe and hygienic.

The utility model discloses an exhaust system of an aluminum casting die, which comprises a gas guide tank, the bottom end of the gas guide tank is fixedly connected with supporting legs, the top end of the left side of the gas guide tank is fixedly connected with a gas inlet, the right side of the gas guide tank is fixedly connected with a gas outlet, and a reset structure for an automatic closing device is arranged in the gas guide tank. According to the exhaust system of the cast aluminum mold, the movable plug is arranged, after the exhaust system is connected with an exhaust channel of the cast aluminum mold, air in the mold is guided into the top end of the interior of the air guide tank through the air inlet, the movable plug can be pushed to descend after the air pressure of the top end of the interior of the air guide tank reaches a certain value, and after the movable plug descends, the air outlet communicates with the interior of the air guide tank; and after the air pressure is reduced, the spring quickly jacks the movable plug back to enable the movable plug to be attached to the bottom of the positioning ring, so that the device is automatically closed while the aluminum liquid is prevented from overflowing, and the problem of automatic opening and closing is solved.

The utility model relates to the technical field of piston type aero-engines, in particular to an exhaust spray pipe for a piston type aero-engine, which comprises a pipe body, a throat is arranged in the middle of the pipe body, the sectional area from the throat to the air outlet end of the pipe body is gradually increased, and a first expansion part and a second expansion part are sequentially arranged from the throat to the air outlet end of the pipe body. The expansion angle of the second expansion part is larger than that of the first expansion part, and the self-adaptive expansion part is arranged in the second expansion part and can automatically adjust the expansion angle according to the working condition of an engine. The tail gas is tightly attached to the pipe wall to stably flow, energy loss is reduced, then the gas expansion effect is used for accelerating exhaust and increasing the flow speed, and in addition, the self-adaptive expansion part is arranged, so that different load requirements can be met.

The invention relates to the technical field of precious metal metallurgy, and discloses a high-density iridium ingot sedimentation type smelting process which comprises the following steps: preparing a water-cooled copper crucible with a zirconium oxide inner wall coating; iridium powder and calcium oxide powder are mixed and put into a crucible; performing induction heating in a vacuum environment until the raw materials are molten; protective gas is inflated, periodic variable-pressure oscillation operation is applied under the condition that the temperature of the melt is kept, and slag crust on the surface of the melt is destroyed through pressure fluctuation and deep gas is promoted to be exhausted; after oscillation is stopped, the melt is left to stand, and a slag system floats upwards and is separated; and establishing a bottom-to-top temperature gradient to control directional solidification of the melt. According to the invention, oxide hard shells are destroyed through a variable-pressure oscillation mechanism, and efficient degassing and impurity removal are realized by cooperating with calcium oxide slagging; the zirconia coating effectively prevents the crucible material from being polluted; the directional solidification and hot isostatic pressing process eliminates internal shrinkage cavities and looseness. According to the process, the impurity content in the iridium ingot is remarkably reduced, and the purity and compactness of the material are improved.

The utility model relates to a battery monomer, battery and electric device, including the shell and be provided the electrode subassembly in the shell, the shell is provided with the liquid injection structure, the liquid injection structure includes liquid injection hole, plugging piece and elastic piece, liquid injection hole is provided in the shell; the plugging piece is arranged in the shell and is used for sealing and opening the liquid injection hole; the elastic piece is arranged in the shell and connected to the inner wall of the shell and the plugging piece, and the elastic piece is used for applying elastic force close to the liquid injection hole to the plugging piece; when the external pressure borne by the single battery is greater than a first set value, the plugging piece is far away from the liquid injection hole under the action of the external pressure so as to open the liquid injection hole; when the external pressure is smaller than or equal to a first set value, the plugging piece gets close to the liquid injection hole under the action of the elastic piece to seal the liquid injection hole. When liquid supplementing is not needed, the blocking piece reliably seals the liquid injection hole under the action of the elastic force of the elastic piece, and when liquid supplementing is needed, the blocking piece overcomes the elastic force of the elastic piece under the action of external force, and the blocking piece can easily open the liquid injection hole.

The application relates to a pump-valve integrated air pressure control assembly based on a shape memory alloy valve, which comprises an air pump and a shape memory alloy valve in air-tight connection, the shape memory alloy valve comprising a valve base and a valve cover; the valve base is provided with a valve air outlet and a valve air inlet, and the air outlet pipe of the air pump is located in the valve cavity through the valve air inlet; a plunger is slidably connected in the valve base, the plunger is connected with an SMA wire, the SMA wire is pressure-connected with a terminal, a pin is inserted in the terminal, and the pin is fixed on a fixed base; the plunger is provided with a plug, and the plug is provided with a spring; the top of the valve cover is provided with a valve air outlet, and the valve air outlet is air-tightly connected with a valve air outlet pipe. The pump-valve integrated air pressure control assembly based on the shape memory alloy valve can solve the problems of large debugging workload, insufficient control parameter multiplicity, insufficient pressure control consistency and limited small-size arrangement in the product development, prototype verification and batch manufacturing processes.

This invention discloses an electric ball valve, a braking system, and a rail vehicle. The electric ball valve includes a ball valve unit and an actuator unit. The ball valve unit includes a valve body and a valve core disposed within the valve body. The valve body has a first valve port and a second valve port. The actuator unit includes a housing and a transmission assembly, at least one rotary energy storage assembly, and a control assembly disposed within the housing. The transmission assembly is connected to the valve core, and the control assembly is connected to the transmission assembly and is used to control the transmission assembly and the rotary energy storage assembly to drive the valve core to rotate and open, thereby connecting the first valve port and the second valve port. According to the electric ball valve provided by this invention, the control assembly controls the transmission assembly and the rotary energy storage assembly to drive the valve core to rotate and open to exhaust air via the transmission assembly, enabling rapid braking in response to exhaust air from the brake pipe.

The invention discloses a siphoning type closestool and a flushing method thereof, the siphoning type closestool comprises a closestool body, the closestool body is provided with a urinal and a siphoning pipeline, the top of the urinal is provided with a brush ring structure, and the brush ring structure is controlled by a water outlet control mechanism to discharge water or not; the siphon pipeline comprises a sewage inlet, an ascending pipe section, a descending pipe section and a sewage outlet which are sequentially communicated in the sewage discharging direction, and the sewage inlet is communicated with the bottom of the urinal; the siphon pipeline is provided with an exhaust hole, the exhaust hole is located at the joint of the ascending pipe section and the descending pipe section, and the exhaust hole is provided with an exhaust one-way valve; a switch assembly is arranged at the drain outlet, when the switch assembly is in a closed state, the siphon pipeline at least enables the downcomer section to be in a full-pipe state full of water by supplementing water, and in the water supplementing process of the siphon pipeline, air in the siphon pipeline is exhausted through the exhaust one-way valve. Passive siphoning is changed into active siphoning, and air noise generated by high-speed water flow for spraying siphoning is avoided, so that the flushing noise of the whole closestool is reduced, and the defecation comfort is improved.

The present invention relates to an inflatable outer windshield, which is used to connect the body of a rail transit vehicle, and includes: an inflatable capsule, a connecting profile, an inflation system, and an exhaust system; the inflatable capsule is an integrated wave-countering structure, and the two ends are screwed to the connecting profile, and the connecting profile is fixedly connected to the vehicle bodies on both sides respectively, and the middle part of the inflatable capsule is a wave-shaped structure. This structure effectively ensures the stability of the gas pressure inside the inflatable capsule and improves the air tightness between the vehicle bodies; the wave-countering structure enables it to have sufficient compression and stretching, effectively extending the overall life of the inflatable capsule. The inflation port and the exhaust port correspond to and are arranged in an alternating manner, and can be quickly inflated and exhausted. A frame is used to shape the waveform to improve the aesthetics and prevent the occurrence of jitter or resonance during the operation of the rail transit vehicle. The inflatable capsule has a simple structure, is easy to use and operate, and is easy to repair, which greatly reduces the failure rate of the outer windshield.

The utility model discloses an edge computing device machine case protection structure suitable for wide temperature environment, include: shell body, upper cover body, exhaust component and heat dissipation component, the upper cover body is installed to the upper of shell body, the rear end surface of shell body is installed with exhaust component, the inside installation of shell body has heat dissipation component, heat dissipation component includes heat conduction board, the lower surface of heat conduction board is provided with a plurality of transverse interval arrangement distribution's heat conduction cavity, the end of heat conduction cavity installs the assembly pipe for with multiple sets of heat conduction cavity communication, the assembly pipe is U type structure, and the end of heat conduction cavity is installed with liquid inlet pipe and liquid outlet pipe respectively, and one end of liquid inlet pipe and liquid outlet pipe is connected with circulating pump box. It has realized to make edge computing device machine case protection structure can be suitable for wide temperature environment, has effectively improved the heat dissipation effect, has strengthened the adaptability of equipment to wide temperature environment.

The utility model relates to the technical field of quilt cores, and discloses a quilt core convenient to fold and store, which comprises a quilt core main body, and a protection mechanism is sleeved on the surface of the quilt core main body. According to the quilt core convenient to fold and store, through the arrangement of the inflation mechanism, the three-way valve, the protection mechanism and the protection layer, when the quilt core is used, the three-way valve is rotated, so that an air pipe is communicated with the interior of the quilt core body, then an air pump is started, the air pump inflates the interior of the quilt core body, and the three-way valve is rotated again; the three-way valve is communicated with the outside to exhaust air in the quilt core main body, air inflation and air exhaust can be rapidly achieved, time and energy are saved, and the use efficiency is improved, the elastic layer is connected to the upper surface of the quilt core main body in a sleeving mode, the protective layer is arranged on the top of the elastic layer, and the protective layer can provide additional protection for the quilt core main body; the surface of the quilt core is effectively waterproof and dustproof, and the quilt core is prevented from being polluted, moist or deformed in the using process, so that the sleep experience and the service life of the quilt core are not influenced.

The invention discloses an intelligent separate injection flow water distribution device which comprises a water injection main pipe, a filter, a water injection branch pipe, a water pressure mounting seat, a flow regulating valve, an intelligent control unit, a water pressure sensor, an inner flow channel, a locking unit and a power unit. The flow water distribution device has the following advantages and effects that the assembly structure of the water pressure sensor in the flow water distribution device for intelligent separate injection is optimized, the assembly efficiency and convenience of the water pressure sensor are improved, and the stability of the assembled water pressure sensor is improved; furthermore, convenience is provided for frequent maintenance and replacement of the subsequent water pressure sensor.

The utility model relates to the technical field of fire-fighting facilities, and provides an air tightness detection device for fire-fighting facility construction, which comprises a bottom plate and an air box, the air box is mounted on the bottom plate, a water hose take-up and pay-off assembly is arranged on the bottom plate and the air box, an air supply assembly is arranged in the air box, a fixed frame is fixed on the surface of the bottom plate, and the fixed frame is rotatably connected with a rotating disc. A driving motor is arranged on the side surface of the fixing frame, the output end of the driving motor is connected with a rotating disc, and a fixing rod is fixedly connected to the surface of the rotating disc. By means of the technical scheme, the problems that in the related technology, in the production process of a water hose, the tight effect of the water hose and connection needs to be ensured, no leakage needs to be ensured, the water pressure is too large when the water hose is used, if leakage exists, collapsing is likely to be caused, water and fire do not exist, and in the emergency fire extinguishing state, the water hose cannot be damaged are solved. And if collapse occurs due to leakage, the danger can be further increased.

The fine sweeping foam pipeline exhaust structure comprises a foam groove, splicing inserting grooves are formed in the two sides of a sampler and the upper end of an auxiliary foam pipe, sealing inserting blocks are installed on the inner walls of the splicing inserting grooves in an inserted mode, one ends of the sealing inserting blocks are communicated with an exhaust pipe, and the other ends of the sealing inserting blocks are communicated with the auxiliary foam pipe. The outer wall of the exhaust pipe is sleeved with a supporting frame, and the side face of the inner wall of the supporting frame is fixedly connected with a supporting cushion block. According to the fine sweeping foam pipeline exhaust structure capable of improving the foam flowability, foam can be rapidly guided through the guide plate, overturning and guiding can be conducted through the auxiliary foam pipe, the foam flowability is improved, a large amount of flushing water entering a fine selection section is reduced, rapid exhaust can be achieved through the exhaust pipe, the process is smooth, the coarse and fine grade is stabilized, and the production efficiency is improved. And meanwhile, the rough tailing height deviation caused by too large return circulation amount of rough and fine middlings is reduced, the exhaust pipe can be rapidly and stably disassembled and assembled through the splicing insertion groove, the sealing insertion block, the supporting cushion block and the supporting frame, and replacement is convenient.

The invention relates to the technical field of underwear packaging, in particular to disposable underpants bagging packaging equipment which comprises a rack, a rotating disc, a feeding mechanism, a bag opening mechanism, a feeding mechanism, an exhaust mechanism and a hot pressing mechanism, the rack bears all structures, the rotating disc is provided with a plurality of clamping stations, the feeding mechanism conveys packaging bags to the clamping stations, and the bag opening mechanism opens the packaging bags. An adsorption assembly and an inner opening assembly of the bag opening mechanism achieve opening of a packaging bag and maintain the opening state correspondingly, the feeding mechanism feeds underpants into the packaging bag, the exhaust mechanism exhausts air in the bag, the hot-pressing mechanism achieves heat sealing at a bag opening, packaging is completed, the automation degree of the equipment is high, and the packaging efficiency and quality can be remarkably improved.

The invention discloses a chemical convenient oxygen generator for emergency rapid oxygen generation and controllable continuous oxygen generation and application, and solves the problem of convenience in preparation, carrying and application of chemical oxygen. The invention provides a novel emergency medical scheme and an implementation method for generating medicine steam by utilizing heat energy of chemical oxygen generation to enable oxygen inhalation to be inhaled along with the medicine steam, and a novel medical oxygen therapy technology for oxygen input of trachea lung and non-respiratory tract cavity organs of a human body or oxygen input along with the medicine steam and chemical oxygen generation body surface application. Emergency rapid chemical oxygen generation can be realized, and controllable continuous circulating chemical oxygen generation can also be realized. The oxygen generator comprises an outer body structure, an oxygen generation layer chamber, a water-free purification filtering layer chamber, a puncture liquid injection piece and an output application device, and the output application device comprises a respiratory tract inhalation application device, a trachea lung and non-respiratory tract cavity organ input application device, a body surface application device and a non-medical output application device. The system has a multi-purpose structure foundation and mechanism capable of being selectively applied, has high cost performance and is easy to popularize and apply.

The invention discloses a device and method for preparing boron trichloride gas. An electric heating fixing barrel is connected to the inner side of a positioning operation frame, a transmission motor is installed at one end of the electric heating fixing barrel through a motor base, a double-shaft motor is installed at the other end of the electric heating fixing barrel through a motor base, and a storage overturning barrel is clamped to one end of one output shaft of the double-shaft motor; the raw materials are stirred through two sets of overturning, air is evenly fed, the heating area and the air contact area are increased, the raw materials are preheated in cooperation with heat circulation, the temperature of finished products is reduced, and the heat efficiency is improved. According to the technical scheme, the condition that the reaction is influenced by equipment cooling caused by insufficient contact area and too low raw material temperature during production can be avoided, and the condensation speed of boron trichloride is accelerated through finished product heat dissipation cooling and condensation cooling, so that rapid exhaust is realized, and the speed of a finished product is ensured.