76results about How to "Block outflow" patented technology

The invention discloses a wood drying device, which relates to the technical field of drying equipment. Fan and electric heating resistance wire mesh, trapezoidal protrusions are arranged horizontally on the inner lower surface of the casing, and square protrusions are arranged vertically, a machine base is arranged on the inner lower surface of the casing, and trapezoidal protrusions are arranged horizontally on the ground of the machine base. Groove, a square groove is arranged longitudinally, and a fixed plate is arranged on the upper part of the base. The left side of the fixed plate and the right side of the motor are both rotatably connected with a four-jaw chuck. The four-jaw chuck is composed of claws and a disk It consists of a body, wood is sandwiched between the four-jaw chucks, and a door is provided on the right side of the casing. The invention can be adjusted according to the length of the wood, and by rotating the wood, the wood is heated more evenly without local heating and the working efficiency is improved.

The invention discloses a system for producing zinc powder by hydraulic atomization. The system comprises a cored induction electric furnace, a dust removal device, a heat insulation leakage package,an atomization device, a screening filter device and a waste water recovery device. A zinc plate feeding opening and a zinc grain feeding opening are formed in a cover of the core induction electric furnace, a smoke and dust box is arranged on the zinc plate feeding opening, an inverted baffle plate is arranged on one side of the smoke and dust box, and zinc plates are laid on the furnace wall ofthe inner side of the cored induction electric furnace; a zinc melt liquid outlet is connected to an electrothermal diversion groove, and flow restricting rock wool and a flow baffle plate are arranged at the front end of the electrothermal diversion groove; the atomization device includes a water storage tank and an atomization tank, and the water storage tank is communicated with an atomizationnozzle through a high pressure hose and a high pressure pump; the waste water recovery device includes a filter and a cooling tower. According to the system, the process controllability is excellent,the efficiency is high, the performance of zinc powder produced is great, waste water produced in the preparation process by hydraulic atomization is effectively treated and recycled, water resourcesare save, the cost is reduced, and the system is safe and reliable without environmental pollution.

The invention provides a buffer and diversion water hammer eliminator which comprises an inner piston buffer part and an outer steady-pressure diversion part which are coaxially arranged inside and outside, wherein the inner piston buffer part comprises an outer wall of the inner piston buffer part as well as an upper piston and a lower pressure regulating piston which are arranged inside the inner piston buffer part; the lower pressure regulating piston is connected with an upper piston through a pre-pressing spring; the top and the bottom of the outer wall of the inner piston buffer part are respectively connected with upper and lower sealing plates; a sealing flange is arranged above the upper piston; the outer wall of the inner piston buffer part is provided with a pressure discharge hole; the outer steady-pressure diversion part comprises an outer wall of the outer steady-pressure diversion part, wherein the outer wall of the outer steady-pressure diversion part is arranged on the outer part of the outer wall of the inner piston buffer part, and the top and the bottom of the outer steady-pressure diversion part are respectively connected with outer walls of the outer steady-pressure diversion parts of the upper and the lower sealing plates; and a breathing water drain-off valve is arranged outside the outer wall of the outer steady-pressure diversion part. The invention further provides a using method of the buffer and diversion water hammer eliminator. The buffer and diversion water hammer eliminator can effectively eliminate a water hammer phenomenon in a water supply process of a water pump, so that a pipe network is kept at stable water pressure, and therefore, safety of a water supply system is guaranteed.

The present invention relates to an artificial well wall sand control simulation test device and a test method, wherein the test device at least includes: a cylinder body, which can accommodate fillers constituting the artificial well wall; two ends of the cylinder body respectively An end cover is sealed and fixed, and a liquid inlet is provided on one of the end covers, and a liquid outlet is provided on the other end cover. The invention can fill the barrel with different types of formation sand and resin sand, so that simulation tests can be carried out on the artificial well wall sand control conditions of different blocks and different oil wells. The artificial well wall sand control simulation test device of the present invention is simple in structure and convenient in use and operation. In addition, the test method of the present invention can not only simulate the process of oil well artificial well wall sand control construction under corresponding test conditions, but also simulate the process of oil well production after oil well artificial well wall sand control, so as to effectively guide sand control The purpose of construction design and site sand control construction.

The invention discloses a method for protecting a gas film hole and a tail split joint hole of a blade. According to the method, a pressure-sensitive adhesive tape is wound on the surface of the bladebody, so that liquid paraffin enters a cavity inside a turbine blade from an air inlet, because the cavity is communicated with the gas film hole and the tail split joint hole, paraffin can enter thegas film hole and the tail split joint hole, and meanwhile, the pressure-sensitive adhesive tape prevents liquid paraffin from flowing out. When the blade is taken out and cooled, liquid paraffin issolidified in the cavity, the gas film hole and the tail split joint hole, so that the alloy matrix inside the blade will not be damaged during the chemical erosion process of the blade by acid solution. The method is simple to operate and convenient and quick to detect and repair the protective effect. There is no need to take special protective operations and requirements for different types ofgas film holes, and the gas film holes with different sizes and shapes can be effectively protected. The raw paraffin wax used in the method can be recycled, pollution is avoided, the environment is friendly, and an anti-pollution technology is not needed.

The invention relates to the technical field of ammonia nitrogen monitoring equipment, and specifically relates to an ammonia nitrogen online monitor. The monitor comprises a box body, a colorimetricanalyzer, a data processor, a display screen, a sampling tube, a first transparent containing vessel and a second transparent containing vessel, wherein a cavity is formed in the box body, a first spacing transverse plate, a second spacing transverse plate and a third spacing transverse plate are arranged in the cavity from top to bottom, and the box body is divided into a first chamber, a secondchamber, a third chamber and a fourth chamber from top to bottom by the first spacing transverse plate, the second spacing transverse plate and the third spacing transverse plate. The monitor is characterized in that a liquid storage tank and a carbon dioxide storage tank are arranged in the second chamber; and the gas outlet end of the carbon dioxide storage tank is connected with a third flow control valve through a pipeline, the outlet end of the third flow control valve is connected to a horizontal guide pipe, the two ends of the horizontal guide pipe are connected to bottom pipe mountingpipes through bent pipes correspondingly, and inner sliding pipes are slidably connected to the interiors of the bottom pipe mounting pipes.

The invention discloses an MgH2 hydrogen-storage material reaction cavity and a fuel cell generation device thereof. A first barrier layer is arranged on the inner wall of the MgH2 hydrogen-storage material reaction cavity; the reaction cavity is provided with a first connector and a second connector, wherein the first connector is used for introducing water vapor and is propped against the first barrier layer and the second connector is used for exporting hydrogen and is propped against the first barrier layer; a closed region formed by the first barrier layer is filled with MgH2 powder of which the particle sizes are smaller than 50 microns; and the thickness of the first barrier layer is 1-100nm. According to the MgH2 hydrogen-storage material reaction cavity, through the design of the barrier layer, the MgH2 powder can be effectively prevented from flowing out of the reaction cavity along with the hydrogen, and meanwhile, the reaction startup time can be effectively shortened through the filled MgH2 powder of which the particle sizes are smaller than 50 microns in the reaction cavity and 0.01%-30wt% of NaOH powder.

The invention discloses a soft-hard conversion gastroscope, comprising an operation part, an insertion tube is connected with the operation part, and an end of the insertion tube far away from the operation part is provided with a leading end part. The insertion pipe is provided with a soft-hard changing channel and a steel wire channel. A magneto-rheological fluid is filled in that soft-hard conversion channel, an excitation coil for generating a magnetic field is arrange outside the soft-hard conversion channel, and a soft-hard conversion button for controlling the on-off of the excitation coil is arranged on an operation part. The operation part is provided with an adjusting knob for adjusting the direction, and a leading end part is provided with a leading end steel wire channel, wherein the steel wire channel and the inner leading end steel wire channel are provided with an adjusting steel wire, one end of the adjusting steel wire is fixedly connected with the end part of the leading end part, and the other end is connected with the adjusting knob. The soft-hard conversion gastroscope of the invention can realize the soft-hard conversion of the insertion tube, namely, in the insertion process, the insertion tube is soft, and the injury to the patient's esophagus is prevented. When the lesion is found, the insertion tube can be transformed into a rigid tube to facilitate control of the apex movement.

The invention relates to a graded micro-mist filler humidifier, and belongs to the technical field of air humidification. The graded micro-mist filler humidifier comprises five parts, namely a water collecting chamber, a micro-mist humidifying area, a filler humidifying area, a gas-liquid rectifying area and an exhaust chamber from bottom to top; and during operation, a circulating water pump sends water in the water collecting chamber into water distribution pipes of the micro-mist humidifying area and the filler humidifying area respectively, the water is atomized by a micro-mist nozzle and a mechanical nozzle respectively and then jetted downwards, dry air enters from an air inlet pipeline at the bottom of a main body and passes through the micro-mist humidifying area, the filler humidifying area and the gas-liquid rectifying area, heat and mass exchange occurs between the air and the water, the relative humidity is increased, the water which is not evaporated completely finally enters the water collecting chamber to form water circulation, and the humidified air is exhausted from the exhaust chamber at the top. By means of the graded micro-mist filler humidifier, the relative humidity of an outlet of the humidifier can reach 95%, the humidifying efficiency is improved, and due to the existence of the filler, liquid drops can be effectively prevented from flowing out of the outlet of the humidifier along with airflow. The graded micro-mist filler humidifier is suitable for northern areas with low air humidity and the field of wastewater evaporation treatment.

The invention relates to the technical field of heavy metal sewage treatment and discloses a treatment device for mercury metal-containing sewage. The treatment device comprises a base, wherein support legs are fixedly mounted at the bottom of the base, and self-locking castors are fixedly mounted at the bottoms of the support legs; a sewage treatment tank is movably mounted on the top of the base, a solid filtering tank is movably mounted on the top wall in a cavity of the sewage treatment tank, and a sewage inlet pipe is communicated to the top of the sewage treatment tank; an iodine solution inlet pipe located on the right side of the sewage inlet pipe is communicated to the top of the sewage treatment tank, a valve is arranged in the iodine solution inlet pipe, and an iodine solution bottle is movably mounted at the top of the iodine solution inlet pipe; and ceramic plates are fixedly mounted on two side walls in a cavity of the solid filtering tank, first filtering plates are movably mounted on the opposite sides of the two ceramic plates, and first filtering holes are formed in the tops of the first filtering plates. The treatment device for mercury metal-containing sewage is relatively high in use safety, and the personal safety of medical workers and patients are protected.

The invention discloses a water inlet device for a cleaning machine. The water inlet device comprises a water inflow support, and the water inflow support is provided with a water inlet pipe and a water overflow pipe; a main cavity is formed in the water inflow support, and a first opening is formed in one side of the main cavity; a vent hole is formed in the upper side wall of the main cavity, the water inflow support is further provided with a condenser pipe with an air inlet and an air outlet, and the air inlet of the condenser pipe is connected with the vent hole; multiple partition boards are arranged in the condenser pipe and divide an inner cavity of the condenser pipe into multiple spaces, and the spaces are communicated with one another to form a steam condensation channel; the steam condensation channel is communicated with the air inlet and the air outlet. The steam circulation path is prolonged, and multiple barriers are arranged on a steam circulation pipeline, so steam frequently collides with all wall surfaces in the circulation process and the water inlet device achieves the natural condensation effect. The water inlet device can effectively condensate steam, can also keep the steam circulation pipeline hygienic and smooth, and makes the cleaning machine operate normally.

The invention belongs to the technical field of molds, and particularly relates to an injection mold. The injection mold comprises a movable mold and a fixed mold, wherein an upper cavity is formed inthe movable mold; a positioning rod is installed on the movable mold; a lower cavity is formed in the fixed mold; a positioning hole is formed in the fixed mold; the positioning rod is inserted intothe positioning hole; a guide groove is formed in the positioning rod; a positioning protrusion is arranged on the inner wall of the positioning hole and can be inserted into the guide groove; an airbag is installed on the bottom face of the positioning hole; the bottom face of the positioning rod can make contact with the air bag and extrude the air bag; an injection molding hole is formed in the bottom face of the lower cavity in the fixed mold; a lining is installed in the injection molding hole; a first spring is installed on the lining; a third movable cavity is formed in the fixed mold;a buffer rod and a second spring are installed in the third movable cavity; and an air leakage hole is formed in the fixed mold. The injection mold is accurate in positioning, the mold is not prone to loosening after being assembled, and meanwhile air in the mold can be conveniently exhausted.

The invention discloses a protective device for clinicians in the medical pneumology department and specifically relates to the field of medical equipment. The protective device comprises a workbench;the workbench comprises a middle box body and side cabinet bodies located at the two ends of the middle box body. A bed-table dual-purpose composition board is arranged at the top of the middle box body; a door-shaped frame plate is arranged at the top of the bed-table dual-purpose composition board; the two ends of the bottom of the door-shaped frame plate are fixedly connected with the two sidecabinet bodies respectively; the two sides of the door-shaped frame plate are fixedly connected with side coamings; the bottoms of the two side coamings are fixedly connected with the two side cabinet bodies respectively; and the front side and the rear side of the door-shaped frame plate are each provided with an arc-shaped pipe. According to the invention, with the arrangement of two pipelines,a linear air curtain is formed between a doctor and a patient, two arc-shaped air curtains are formed on the front side and the rear side, the doctor and the patient are surrounded, bacteria and thelike emitted by the patient are prevented from flowing out of the air curtain, the safety of the whole treatment room is greatly improved, and safety guarantee is provided for the doctor, the patientand other patients and medical staff outside the space.

The invention relates to a liquid outlet easy to open. The liquid outlet easy to open comprises a liquid outlet wall and a sealing fin arranged in the liquid outlet wall. The liquid outlet easy to open is characterized in that the sealing fin comprises a fixed plate and a plate easy to open, the plate easy to open is connected with the fixed plate, the fixed plate is fixedly connected to the liquid outlet wall, the plate easy to open is fixedly connected with the liquid outlet wall, the liquid outlet wall, the fixed plate and the plate easy to open are integrally formed through injection molding, and the thickness of a connecting part A formed by the plate easy to open and the liquid outlet wall is smaller than that of a connecting part B formed by the fixed plate and the liquid outlet wall. The defects that a ring easy to pull is prone to being broken through pulling and the liquid outlet cannot continue to be opened in the prior art, the ring easy to pull is difficult to machine, and production cost is high are overcome; the problem that the ring easy to pull cannot be applied to liquid outlets with the diameter smaller than that of a finger of a human, and no good sealing piece easy to open or sealing mode is available to liquid outlets with small diameters. The liquid outlet easy to open has the advantages of being simple in structure, high in practicability, convenient to open and free of limitations of the sizes of the diameters of liquid outlets.

The invention provides a face-to-face blowing type double-circulation air curtain unit, and belongs to the technical field of refrigeration houses. The face-to-face blowing type double-circulation aircurtain unit comprises a first case and a second case which are oppositely arranged. A first fan and a third fan are arranged on the first case. A first opening communicating with an inner cavity ofthe first case is formed in the first case. A second fan is arranged on the second case. A second opening and a third opening which communicate with an inner cavity of the second case are formed in the second case. The first fan is opposite to the second opening. The second fan is opposite to the first opening. The third fan is opposite to the third opening. According to the face-to-face blowing type double-circulation air curtain unit, double circulation of air flow can be achieved, cyclically-flowing air can better prevent cold air in a refrigeration house from flowing out and prevent hot air outside the refrigeration house from entering the refrigeration house, and a better blocking effect is achieved; and the face-to-face blowing type double-circulation air curtain unit has a better heat insulation effect and can save more energy.

The invention discloses a water conservancy gate comprising a fixing frame and a gate plate. An extending frame is arranged at the top end of the fixing frame and is in a square shape, and a filteringnet is inlaid on the inner side of the extending frame. A directional groove is formed in the fixing frame. A fixed gate plate body is arranged on one side of the fixing frame. A first leakage hole area is arranged at the top end of the fixed gate plate body and occupies one second of the total area of the fixed gate plate body. A movable gate plate body is arranged at the top end of the fixed gate plate body, and the height of the movable gate plate body is two third of the height of the fixing frame. Second leakage holes are formed in the bottom of the movable gate plate body, The number and size of the second leakage holes are matched with the number and size of first leakage holes. When the water conservancy gate is opened for water discharging, the water discharging speed is increased to the maximum extent, and the mechanical functions of the water gate are not damaged due to dirt in water when the water gate is closed, so that the service life of the water conservancy gate is prolonged, and the water conservancy gate is suitable for being used by people.

The invention relates to a medicine application method for seawater net cage fish culture. An adopted medicine application device comprises a net cage, an adjustable bubble curtain netting device provided with a plurality of air distribution pipes located at the bottom of the inner side of the net cage, a medicine distribution ring provided with a medicine tank and located at the bottom of the net cage, a medicine supply device of a spiral medicine distribution pipe with the lower end communicating with the medicine distribution ring and a rotation driving device. The medicine application method comprises the following steps that (1), compressed air is sprayed out from a plurality of air distribution pipes at the bottom of the inner side of the net cage to form a bubble curtain net; (2), the air distribution pipes move towards the inner side to shrink the bubble curtain net, and fishes are driven to swim towards the inner side to be concentrated; and (3), medicine in the medicine tank of the medicine supply device is sprayed out from the spiral medicine distribution pipe and the medicine distribution ring to be applied to the fish, the rotation driving device drives the spiral medicine distribution pipe and the medicine distribution ring to rotate, the medicine is evenly distributed, the bubble curtain net prevents the medicine from flowing out, the concentration of the medicine in seawater on the inner side of the bubble curtain net is increased, and the medicine using amount is reduced. The medicine application method for seawater net cage fish culture is good in fish disease treatment effect.

The invention provides a treatment device for cardiovascular anesthesia interventional operation. The treatment device comprises a puncture needle, a transparent buffer tube, handles, a support and a positioning plate, wherein the near end of the puncture needle penetrates through the buffer tube to be subjected to nesting with a pushing plate, the positioning plate is fixedly connected with the pushing plate through the support, and the positioning plate is provided with a disinfection structure used for disinfecting the puncture needle; and a pushing structure used for pushing the puncture needle to puncture is mounted on the handle, the puncture needle is divided into a first needle cavity and a second needle cavity through an interlayer, the near end of the first needle cavity is provided with a liquid injection port located in the pushing plate, the near end of the second needle cavity is sealed, and the buffer tube comprises a first buffer cavity and a second buffer cavity. A one-way valve is arranged in the second needle cavity, a plurality of small holes are formed in the position, close to the pushing plate, of the second needle cavity, and a hemostatic detection structure communicates with small holes. According to the invention, a hemostatic agent can be conveniently injected into a puncture port for hemostasis, and the device is more stable during puncture.

The present invention provides a high-conductivity electrode cap suitable for an electromyogram evoked potentiometer. The high-conductivity electrode cap comprises an electrode cap body and an electrode assembly, wherein the electrode cap body is in a cap shape and comprises a frame body and an insulating body covering the outer side of the frame body; the frame body is of a hollow mesh structure which is made of soft insulating material with no fixed shape, is provided with a plurality of nodal parts and of which the bottom is provided with a line outlet end; the electrode assembly comprises at least one electrode; the end of each electrode is connected with a signal line assembly; the electrodes are arranged in the nodal parts; the signal line assemblies are uniformly arranged in the mesh structure and comprise signal lines and memory alloy; the electrodes are connected by the signal lines, and all of the signal lines are finally gathered at the line outlet end; and the memory alloy is of a linear structure, and is attached to the outer sides of the signal lines. By the adoption of the structure, the effect that the electrode cap can naturally recover to the original shape after being used is realized.

The invention discloses a material distributing system used for a block machine. A hopper used for releasing materials is arranged above the material distributing system, a loading table used for loading the materials is arranged under the material distributing system, the front side of the loading table is in seamless connection with a die box of the block machine, and the material distributing system is pushed by a crank arm to move forwards and send the materials into the die box; the material distributing system comprises a material distributing box which is penetrated up and down, one or more pin shafts are arranged on two side walls, parallel to the moving direction of the material distributing box, of the material distributing box, and free ends of one pair of the pin shafts are arranged in the interior of the material distributing box; the material distributing system box further comprises one or more pairs of baffles, two ends of the baffles are fixedly connected with shaft sleeves arranged on one pair of pin shafts respectively, the baffles are arranged between a pair of limiting blocks in a clamped mode, so that the bottom sides of the baffles are in contact with the surface of the loading table when the baffles are attached to the limiting blocks which are far away from the die box tightly. Material distributing is even and sufficient, the operation is stable, and the material distributing quality and product quality are improved.

The invention discloses a cooling water box for a drilling machine. The cooling water box for the drilling machine comprises a water box body (1) and a platform face (2), wherein water outlet (11) is formed in the bottom of the water box body (1). An inner edge (12) and an outer edge (13) are arranged on the water box body (1). A locating groove (14) is formed between the inner edge (12) and the outer edge (13). The platform face (2) is supported in the locating groove (14). The height of the inner edge (12) is lower than that of the outer edge (13), and water outlet holes which are in the same height with the inner edge (12) are formed in the inner wall of the water box body (1). The cooling water box for the drilling machine has the advantages that the drilling machine is stored with cooling water, and the cooling water box for the drilling machine is safe and reliable, simple in structure, fixed and stable in support, and convenient to use.

The invention discloses a medical mask with anti-fog glasses lenses. The medical mask comprises a protective sheet and two hanging lug fixing ropes symmetrically arranged on two sides of the protective sheet, wherein two side surfaces of the protection sheet are respectively provided with an outer contact area and an inner contact area, a nose sealing patch is arranged at the top of the inner contact area along an edge of the protective sheet from left to right, the middle of the nose sealing patch is attached to a nose bridge of the face, the middle of the nose sealing patch extends towards two sides and gradually slides downwards to edges of the two sides of the protection piece in a curve mode, and a nose bridge strip and two glasses clamping bases are further arranged on the protectionsheet. The medical mask is advantaged in that the nose sealing patch is used for keeping close contact with the skin, hot air flow at an upper end of the mask can be effectively prevented from flowing out, after a medical worker wears the glasses, the condition that the lenses are fogged can be reduced, the glasses do not need to be taken off repeatedly for wiping, and the medical work can be carried out conveniently.

The invention relates to the field of nozzles, in particular to a double-starting fire extinguisher nozzle. The double-starting fire extinguisher nozzle comprises a saw table base, a clamping structure, a limiting structure and a feeding structure, wherein a spraying starting structure is connected to a spraying pipe, the spraying starting structure comprises a lantern ring, a shifting rod, an annular sleeve, a spraying pipe and an annular rotating block, the outer side face of the spraying pipe is fixedly connected with the lantern ring, an annular cavity is formed in the lantern ring, an annular rotating block is rotationally connected into the annular cavity, the outer side wall of the lantern ring is connected with a plurality of spraying pipes of the annular photographing set and provided with spraying openings with the same number as the spraying pipes, first through holes with the same number as the spraying pipes are formed in the annular rotating block, and the first through holes and the spraying openings are staggered. The double-starting fire extinguisher nozzle has the advantages that the spraying range is enlarged, a large-range fire extinguishing material can be rapidly released, a large-range area is rapidly extinguished, secondary starting is adopted, and fire extinguishing personnel can select a proper fire extinguishing mode according to the area of a fire area.

The invention relates to a liftable flood control river levee and a method. According to the technical scheme, a river levee framework is arranged in a river levee, transition connecting steel bars are arranged in a concrete foundation, a rubber protection layer is arranged on the upper side of the concrete foundation, levee overflow protection rubber is arranged in a cavity formed in the rubber protection layer, and the lower end of the levee overflow protection rubber is movably connected with the top of the concrete foundation through fixing bolts; and an outside-levee flood discharge device is further arranged in the river levee, a flood discharge gate lifting cavity is formed in the river levee, the top of the flood discharge gate lifting cavity communicates with an outside-levee flood discharge channel, the outer side of the outside-levee flood discharge channel communicates with a plurality of flood discharge inlets, and the bottom of the flood discharge gate lifting cavity communicates with a river flood suction channel. The liftable flood control river levee and the method have the beneficial effects that the levee overflow protection rubber expands when encountering water to achieve rising, electric power is not needed, expansion can be achieved only after the levee overflow protection rubber encounters water, and therefore when the flood peak water flow is large, safe passing can be achieved, and the huge potential safety hazard that flood overflows the levee, and consequently the levee is broken is avoided.

The invention discloses a drink capsule with backpressure. The drink capsule with the backpressure comprises a shell internally provided with a containing cavity for filling of extraction substances,and a packaging part is fixed at an opening of the upper end of the containing cavity and used for covering; the drink capsule with the backpressure is characterized in that a column table protrudingupwards is arranged at the bottom of the containing cavity, a penetrating liquid outlet channel is arranged on the column table, a filtering sleeve made from a material capable of filtering liquid sleeves the column table, the liquid outlet channel and the containing cavity are divided by the filtering sleeve, a plug made from a flexible material is inserted into an inner port of the liquid outletchannel, and is located in the filtering sleeve, and when pressure inside the containing cavity reaches a certain value, the plug is promoted and deformed to open or further open the inner port of the liquid outlet channel. According to the drink capsule with the backpressure, effective constituents of the extraction substances can be directly and fully extracted out without the backpressure generated by extraction equipment, juice extracted by the drink capsule can be directly flown out to be used for people, and for achieving the aim, a liquid outlet channel with the backpressure does not need to be additionally arranged by adopting the extraction equipment of the drink capsule.

The invention discloses an MgH2 hydrogen-storage material reaction cavity and a fuel cell generation device thereof. A first barrier layer is arranged on the inner wall of the MgH2 hydrogen-storage material reaction cavity; the reaction cavity is provided with a first connector and a second connector, wherein the first connector is used for introducing water vapor and is propped against the first barrier layer and the second connector is used for exporting hydrogen and is propped against the first barrier layer; a closed region formed by the first barrier layer is filled with MgH2 powder of which the particle sizes are smaller than 50 microns; and the thickness of the first barrier layer is 1-100nm. According to the MgH2 hydrogen-storage material reaction cavity, through the design of the barrier layer, the MgH2 powder can be effectively prevented from flowing out of the reaction cavity along with the hydrogen, and meanwhile, the reaction startup time can be effectively shortened through the filled MgH2 powder of which the particle sizes are smaller than 50 microns in the reaction cavity and 0.01%-30wt% of NaOH powder.

The invention discloses a pediatric navel electric heating moxibustion instrument. The pediatric navel electric heating moxibustion instrument comprises a protective band and a moxibustion box; a wear-resisting sideband is arranged on edges and corners of the protective band; a mesh cotton cloth layer is fixed on the center of the protective band; the left side of the protective band and the sameside surface of the mesh cotton cloth layer are fixed with loop and hook master straps; the moxibustion box is fixed on the center of the protective band, and is arranged above the mesh cotton cloth layer; a box cover is arranged on an upper end surface of the moxibustion box; an electric heating sheet is fixed inside a placement chamber, and an absorption layer is arranged outside the electric heating sheet; a switch and an external power supply interface are arranged on a front end surface and a right side surface of the moxibustion box respectively; a groove is formed in the bottom of the moxibustion box; and a ventilation hole is formed in a position communicating with the groove, on the bottom of the placement chamber. The pediatric navel electric heating moxibustion instrument is easy to operate and use, the inner material contacting the skin is comfortable cotton cloth, and is excellent in air permeability; and low temperature burning can be avoided in the fumigation process.

The invention discloses a gas water separating device under a negative pressure state, comprising a gas water separating cabin, a gas water isolating body and a water storage room; the gas water separating cabin comprises several drilling joints, a separating cabin water outlet and a separating cabin gas outlet; the drilling joints are arranged at the side face of the gas water separating cabin, and the separating cabin water outlet and the separating cabin gas outlet are respectively arranged at both ends of the gas water separating cabin; the water storage room comprises a water storage room water inlet, a water storage room gas ventilating opening and a water storage room draining opening; the gas water separating cabin is connected with a gas extraction drilling hole through a drilling joint, and the gas water isolating body is assembled in the gas water separating cabin; after gas and water enter the gas water separating cabin through the drilling joint, the gas water isolating body guides gas and water to one end of the water outlet of the separating cabin, water enters the water storage room through the separating cabin water outlet and the water storage room water inlet, and gas continues to guide to one end of the separating cabin gas outlet from the gas water isolating body, and enters the gas extraction pipeline from the gas outlet of the separating cabin. The gas water separating device can effectively improve gas water separating degree and improve the extraction efficiency.

The invention provides a platform adaptive airflow dust-proof water glass for classroom teaching teachers. The water glass comprises a direction adaptive adjustment mechanism and a adaptive dust-proofwater cup body, the surface of the adaptive dust-proof water glass body is in circular shape; a first arc-shaped handle is fixedly connected with the side surface of the adaptive dust-proof water glass body; a center placing butt groove is arranged on the lower surface of the adaptive dust-proof water glass body, and the inner wall of the center placing butt groove is in circular shape. The invention relates to the field of teaching. The platform adaptive airflow dust-proof water glass for classroom teaching teachers is provided with an arc-shaped dust-proof airflow cover and the surface of the arc-shaped dust-proof airflow cover is in arc shape so that chalk dusts are not easy to precipitate on the surface of the arc-shaped dust-proof airflow cover when the chalk dusts drift to the waterglass, moreover, the arc has certain guiding effects on the dusts and the wind, so that dusts fall around the cambered surface, thereby the water glass can effectively solve the problem that the general dust-proof water glass is inconvenient to be used in the field of teaching activities as the chalk dusts frequently fall into the water glass, which influences the normal drinking of the teacher.