226results about How to "Extended storage time" patented technology

The invention discloses a Gegen Qinlian decoction vesicle-like nanoparticle as well as an extraction method and application thereof, and belongs to the technical field of biological medicines. The method comprises the following steps: preparing a radix puerariae qinlian decoction stock solution; placing at 4-8 DEG C for 12-15 hours to obtain a gelatinous substance; carrying out low-speed centrifugation at 4-8 DEG C, and taking supernate, so as to obtain crude extract of the vesicle-like nanoparticles of the radix puerariae, radix scutellariae and rhizoma coptidis decoction; carrying out ultracentrifugation at 4-8 DEG C, discarding the supernatant, and carrying out PBS resuspension precipitation to obtain a crude product of the vesicle-like nano-particles of the Gegen Qinlian decoction; and centrifuging 16000g at the temperature of 4-8 DEG C for 10-15 minutes, taking supernate, and filtering by using a 0.22 mu m filter membrane, so as to obtain the vesicle-like nanoparticles of the Gegen Qinlian decoction. According to the Gegen Qinlian decoction vesicle-like nanoparticles as well as the extraction method and the application thereof, the bioavailability and the targeting property of effective components in the Gegen Qinlian decoction are remarkably improved through a nanocrystallization technology, the concentration of the medicine at the ulcerative colitis part is enhanced, and the treatment effect is effectively improved.

The invention relates to the field of powder coatings, and particularly discloses a slow-release coated heat-curable powder coating catalyst composition, a powder coating and a preparation method of the powder coating. The slow-release coated heat-curable powder coating catalyst composition comprises: i) a component A, which is an inner core coated object and comprises at least one basic catalyst capable of promoting the ring-opening reaction of epoxy resin, and i) a component B, which is an outer core coated object and comprises at least one basic catalyst capable of promoting the ring-opening reaction of epoxy resin; ii) a component B, which is a coated shell comprising at least one crystalline solid unsaturated polyester resin or a semi-crystalline solid unsaturated polyester resin; the component C is a coating medium and comprises at least one alkane wax.The low-temperature powder coating can be cured at the ultralow temperature, the curing temperature is as low as 90-120 DEG C, the storage time of the low-temperature powder coating is effectively prolonged, and the requirement of a normal powder coating process is met.

The utility model discloses a vehicle-mounted liquid hydrogen storage tank which comprises an inner tank and an outer tank, the bottom and the top of the inner tank are respectively provided with a liquid outlet vacuum pipeline and a liquid filling opening vacuum pipeline which are communicated with the outside of the outer tank; the side wall of the upper part of the inner tank is provided with an overflow pipeline which is communicated to the outside of the outer tank and is connected with a bleeding main pipe after passing through a rewarming device; the top of the inner tank is also provided with an air return port pipeline communicated to the outside of the outer tank; the air return port pipeline is provided with an air return valve; the air return port pipeline is respectively connected with one end of a self-pressurization pipeline, one end of a pressure regulating pipeline and one end of an inner tank overpressure relief pipeline on the front side of the air return valve; the other end of the self-pressurization pipeline is connected to the front side of a liquid outlet valve, and the other ends of the pressure regulating pipeline and the inner tank overpressure relief pipeline are connected with a relief header pipe after passing through a rewarming device; and an air cooling screen is arranged around the outer side of the inner tank and is welded with the air return port pipeline. The liquid hydrogen storage device has the advantages of being simple in structure, free of energy consumption and low in manufacturing cost, and liquid hydrogen can be economically stored for a long time.

The invention discloses a resistive random access memory manufacturing method, a resistive random access memory chip manufactured by the resistive random access memory manufacturing method comprises a first resistive random access memory unit and a second resistive random access memory unit, a resistive random layer of the first resistive random access memory unit comprises a high-voltage material layer, and a resistive random layer of the second resistive random access memory unit is a high-dielectric constant material layer. The first resistive random access memory unit has the characteristic of long storage time due to the fact that the resistive random layer comprises the high-voltage material layer, and the second resistive random access memory unit has the characteristics of fast response and high operation speed due to the fact that the resistive random layer is the high-dielectric-constant material layer. According to the manufacturing method of the resistive random access memory, the two resistive random access memory units can be subjected to process integration through the innovative process, and the manufactured resistive random access memory chip can meet the requirements of two performances.

The invention relates to a preparation method of a cannabidiol nano-lipid carrier, in particular to a preparation method of a cannabidiol nano-lipid carrier with a transdermal absorption function. The invention aims to solve the problem that the existing cannabidiol lipid carrier cannot have high water solubility and high transdermal absorption function at the same time, and is poor in stability and easy to irritate skin. The method comprises the following steps: 1, weighing raw materials; 2, preparing an oil phase; 3, preparing a water phase; 4, mixing; 5, performing ultrasonic homogenization; 6, cooling; and 7, removing impurities. The preparation method is used for preparing the cannabidiol nano-lipid carrier with the transdermal absorption function.

The main and fine grid integrated HJT silver paste comprises the following components in percentage by mass: 85-92% of silver powder, 2-6% of organic resin, 0.5-2% of a curing agent, 0-1% of a thixotropic agent, 0-1% of an epoxy catalyst, a silicone oil catalyst and 2-5% of an organic solvent. The silver powder at least comprises three kinds of powder with different particle sizes, wherein the ball powder and the ball-like powder with the D50 being 2-6 micrometers and the tap density being 5-6 g / mL account for 30%-50% in one kind, the ball powder and the ball-like powder with the D50 being 0.1-1 micrometer and the tap density being 3-5 g / mL account for 20%-40% in the second kind, and the sheet powder with the D50 being 0.5-2 micrometers and the tap density being 3-5 g / mL account for 10%-30% in the third kind.

The invention provides benzoyl peroxide gel and a preparation method thereof. The preparation method comprises the following steps: S1, preparing an active phase; s2, preparing a gel phase; s3, mixing half of the active phase with the gel phase, and performing constant-temperature water bath to obtain low-crosslinking-degree gel; s4, uniformly granulating the low-crosslinking-degree gel, mixing the low-crosslinking-degree gel with the balance of the active phase, and performing vacuum negative-pressure stirring twice to obtain a material; and S5, adding a pH regulator into the material, regulating the pH value, discharging and filling. Nanocrystals are formed through benzoyl peroxide pretreatment, the surface area and activity are improved, the curative effect is enhanced on the premise of safety, uniform dispersion can be achieved, the stability of benzoyl peroxide in gel is improved, and the storage time is prolonged. A part of the active phase and the gel phase are mixed to form low-crosslinking-degree gel, the low-crosslinking-degree gel is uniformly granulated and then mixed with the remaining active phase, and the benzoyl peroxide gel is prepared through vacuum negative pressure, so that the swelling property can be improved, the stability and the permeability can be improved, and adverse reactions such as irritation to skin can be avoided.

The invention provides high-stability recombinant I-type collagen and application thereof, and belongs to the technical field of collagen. The invention aims to avoid potential restriction enzyme cutting sites and unstable sequence fragments during sequence design through directional selection of the existing amino acid sequence, so that the amino acid sequence can be efficiently expressed in pichia pastoris, and the recombinant I-type collagen obtained after purification has very high stability; the recombinant I-type collagen gives consideration to factors such as related biological active sites, hydrophilicity and the like, has related biological activity while being relatively high in stability, and has very good practicability.

The present invention discloses a kitchen waste treatment system and a treatment method thereof, which sequentially performs crushing, primary filtration, secondary filtration and filter pressing on kitchen waste, and finally performs oil-water separation, recovers oil pollution, and discharges filtered water, wherein solid waste is squeezed into dry waste in the secondary filtration, thereby realizing the basic discharge of the oil-water mixture in the waste mixture, and the remaining solid waste is squeezed and formed into cake-shaped dry waste, and then the dry waste is discharged separately from the secondary filtration device, thereby completing the dry-wet separation, and the discharged dry waste is of uniform specifications, and since the oil-water mixture is basically separated, the placement time of the dry waste is increased.

The invention belongs to the field of functional film material preparation, and particularly relates to a high-toughness weather-resistant barrier film and an in-situ cross-linking preparation method and application thereof.The high-toughness weather-resistant barrier film is prepared by dispersing two-dimensional layered mineral nanosheets in water and stirring the two-dimensional layered mineral nanosheets to obtain nanosheet suspension liquid; slowly adding biomacromolecular polysaccharide, stirring until the biomacromolecular polysaccharide is completely dissolved, and adding a plasticizer to obtain a membrane casting solution; pouring the film casting solution into a mold, and drying to obtain a film precursor; the film precursor is soaked and cross-linked in a metal ion salt solution coagulating bath, washing and drying are performed after cross-linking are completed, and the high-toughness weather-resistant barrier film is obtained, the composite film is good in mechanical strength, has flame retardance and gas barrier performance and can be applied to flame retardance and storage and fresh keeping of food, and the storage time of the food is prolonged; the preparation method is simple, low in cost, suitable for large-scale popularization, wide in market prospect and friendly to application environment.

The invention belongs to the technical field of photoresist materials, and particularly relates to an etching-resistant ArF photoresist and a preparation method thereof. The etching-resistant ArF photoresist is prepared from the following raw materials in parts by weight: 90 to 100 parts of film-forming resin, 5 to 15 parts of a photoacid generator, 0.5 to 2 parts of organic alkali, 3 to 10 parts of an etching-resistant additive and 3000 to 5000 parts of a photoresist solvent, and the etching-resistant additive is a cholic acid derivative; the film-forming resin comprises metacrylic acid ester with a side chain containing lactone, metacrylic acid ester with a side chain containing an aliphatic ring protecting group and metacrylic acid ester with a side chain containing a polar group; according to the etching-resistant ArF photoresist disclosed by the invention, the photoresist with a relatively high-resolution pattern can be formed; the photoresist has high resolution and etching resistance, and the application range of the photoresist can be widened.

The invention provides a microalgae culture medium and a microalgae preservation method, relates to the technical field of algae culture, and particularly provides a brand-new microalgae preservation liquid culture medium and a microalgae preservation solid culture medium, and develops a brand-new microalgae biphasic preservation method by using the microalgae preservation liquid culture medium and the microalgae preservation solid culture medium. The preservation method comprises the following steps: inoculating microalgae species in an exponential growth phase into a microalgae preservation solid culture medium, culturing for 5-10 days, and adding a microalgae preservation liquid culture medium into the microalgae preservation solid culture medium inoculated with the microalgae species to form a semi-solid culture medium, the semi-solid culture medium is subjected to biphasic preservation under natural light at 2-10 DEG C. The preservation method can effectively prolong the preservation time of microalgae species, ensures the preservation effect, and has wide application prospects.

The invention belongs to but is not limited to the technical field of agricultural product storage, and discloses a mutton quality improving and gradient processing storage method which comprises the steps of cold storage, ice temperature and freezing storage. A modified atmosphere fresh-keeping packaging method; applying a natural biological fresh-keeping technology; and carrying out full-chain storage management. Through comprehensive application of cold storage, ice temperature and freezing in combination with a modified atmosphere fresh-keeping packaging technology, the storage time of the mutton is remarkably prolonged, and meanwhile the excellent quality of the mutton is kept. The cold storage and ice temperature technology effectively inhibits the growth and enzymatic reaction of microorganisms, delays the oxidation process of the mutton, and maintains the color, texture and flavor of the mutton; the quick freezing and ultrasonic unfreezing technology is adopted, so that the damage to the cell structure of the mutton in the freezing and unfreezing process is reduced to the maximum extent. By optimizing the unfreezing process, juice loss is reduced, the unfrozen mutton still keeps good texture and taste, and the problem of quality loss in a traditional method is solved.

The utility model discloses sunflower seed packaging equipment, which relates to the technical field of sunflower seed packaging and comprises a medicament storage tank, a nitrogen storage tank and a storage device. An injection pipeline on the nitrogen storage tank is used for conveying nitrogen to the cavity below, and the lower surface of the lifting plate is fixedly connected with a piercing needle used for piercing the sealing plate. The sunflower seed packaging equipment is provided with the medicament storage tank and the nitrogen storage tank, the medicament storage tank and the nitrogen storage tank are divided into the upper cavity and the lower cavity through the sealing plate arranged in the storage tank, the two injection pipelines inject nitrogen and oxygen into the two cavities respectively, and seeds are stored in the cavity where the nitrogen is injected. The content of oxygen in the seeds is reduced by injecting nitrogen, so that the growth of the seeds can be inhibited to a certain extent in the storage process, and the storage time of the seeds can be prolonged.

The utility model relates to the technical field of enameled wires, in particular to an enameled wire for a direct current motor, which comprises a wire body. The film body is arranged on the line body, and the film body comprises a PVC sleeve arranged on the line body in a sleeving mode; and the tearing indentation is arranged on the PVC sleeve. The enameled wire structure with high use stability, good current capacity and high conductivity is provided for the high-power direct-current motor through the assembly composed of the wire body and the film body, the enameled wire can adapt to large power and current intensity through the arrangement of the multiple wires, meanwhile, the used mechanical strength is good, and due to the arrangement of the multiple insulating layers, the service life of the enameled wire is prolonged. The direct current motor enameled wire has better current leakage prevention and electric shock protection capabilities, ensures the use quality of the direct current motor, and can reduce the contact between the enameled wire and external air during storage by arranging the film body and performing sleeving protection on the exterior of the wire body, reduce the oxidation of the wire body, prolong the storage time of the wire body and improve the use quality of the wire body in the later period.

The invention provides a method for delaying post-harvest physiological deterioration of cassava and reducing superoxide anion level of cassava through nickel sulfate treatment, and belongs to the technical field of post-harvest preservation of cassava. According to the method, cassava is treated through nickel sulfate contact, the superoxide anion level of cassava is reduced, and post-harvest physiological deterioration of cassava is delayed; therefore, physiological browning and deterioration of the cassava after picking are effectively prevented, and good storage quality of the cassava can be maintained. The method is high in practicability and simple and convenient to operate, can effectively prolong the storage time of the cassava, and has good development and application values in the links of storage, transportation, industrial production and the like of the cassava as an industrial raw material.

This application proposes an mMOFs / GO-CS composite film, its preparation method, and its application, which can be used for fruit and vegetable preservation. The method includes the following steps: Step S1: Prepare modified mMOFs; Step S2: Weigh water, film-forming agent, glycerol, and graphene oxide dispersion. First, stir the water, film-forming agent, and glycerol until dissolved to obtain a transparent solution A; Under stirring conditions, add the graphene oxide dispersion dropwise to the transparent solution A to obtain solution B; Step S3: Weigh the mMOFs prepared in Step S1, disperse them in distilled water, and then add them dropwise to solution B under stirring conditions. Cast the film, and after drying, obtain the mMOFs / GO-CS film. This application describes the preparation of mMOFs with high surface area, large porosity and adjustable pore size, with graphene oxide as a linker, and chitosan to construct a bifunctional preservation film with both antibacterial and ethylene adsorption properties. The preparation method is simple and the composite film is biodegradable. It can be used to preserve freshly picked fruits and vegetables, extend the storage time of fruits and vegetables, and reduce the damage and waste of fruits and vegetables with respiratory climacteric effects.

The present invention relates to the field of food processing technology, specifically to a high-concentration CO2 cyclic processing device, comprising a CO2 storage tank, a first processing system, a second processing system and a recovery system; the CO2 storage tank is connected to the first processing system and the second processing system respectively, and the first processing system and the second processing system both include a processing kettle, a heating device and a cooling device; the recovery system includes a plurality of delivery pipes arranged in parallel, and the two ends of each delivery pipe are respectively connected to the processing kettles in the first processing system and the second processing system, and the delivery pipes include a normal pressure delivery pipe, a boosted delivery pipe and a delivery pipe provided with a vacuum generating device. The present invention can recycle more than 99% of CO2, save energy and reduce emissions, and has a short processing time, so as to realize fast and efficient processing of food materials. The present invention also relates to the application of the device in food processing, and also relates to a processing method of parboiled rice, which can significantly improve the processing efficiency and processing quality of parboiled rice.

The utility model discloses a poultry manure treatment mechanism, which belongs to the technical field of poultry farming and comprises a poultry house, a foot stand is slidably connected to the interior of the poultry house through a slide rail, one side of the foot stand extends to one side of the exterior of the poultry house through a through groove, and the upper surface of the foot stand is corrugated. A cleaning mechanism capable of cleaning poultry manure on the foot stand is arranged in the poultry house, and a collecting mechanism capable of drying and collecting poultry separately is arranged on one side of the outer part of the poultry house. Through the cleaning mechanism, the foot stand is pulled outwards, the metal scraping plate and the silica gel scraping plate are used for scraping livestock manure above the foot stand, the water pump sprays water in the water tank onto the foot stand through the spray head to wash the foot stand, the foot stand is cleaned more thoroughly, sanitation dead angles do not exist, cleaning is more convenient, and the cleaning efficiency is improved. The use is more convenient.

The utility model discloses a kind of water flow ice maker, including the inner container installed in ice maker, the upper portion of inner container is installed with water flow ice module, detachable ice basket and ice water box are installed in inner container, by detachable ice water box replace original ice water cavity used for storing ice water, ice water box can be taken out separately clean or use;Inner container is divided into two layers for installing ice basket and ice water box by baffle, the lower water outlet is equipped on baffle, the water outlet passage is equipped between ice basket and inner container upper layer wall surface, water guide structure is further equipped in inner container upper layer, water that flows through water flow ice module is guided into water outlet passage and reaches lower water outlet, falls into ice water box in inner container lower layer from lower water outlet, so that water that flows through water flow ice module can avoid ice basket and not enter ice basket and pour on ice block, so that ice block can have longer storage time;In addition, according to detachable ice water box, water connection is equipped in inner container lower layer, ice water box is equipped with water outlet nozzle I that is docked with water connection, water connection is three-way connector, one way is connected with water outlet nozzle I, one way is connected with the water inlet portion of water flow ice module through water pump, and the other way is connected with water supplement source through water supplement valve, the waterway connection function of ice water box is integrated on water connection, waterway arrangement and connection are simpler.

This invention discloses an integrated automatic folding and packaging machine for rust-proof paper on the outer ring of steel coils, belonging to the field of packaging machinery technology. The integrated machine includes a robotic arm, an automatic paper feeding mechanism, a folding and edge-folding mechanism, and a compaction mechanism. Its working principle is as follows: There are two sets of folding and edge-folding mechanisms, respectively arranged on the left and right sides of the steel coil outer ring rust-proof paper packaging station; when the conveyor line delivers the steel coil to the packaging station, the robotic arm drives the folding and edge-folding mechanism to approach the steel coil, the automatic paper feeding mechanism wraps the rust-proof paper around the outer ring of the steel coil, the folding and edge-folding mechanism folds the rust-proof paper into folds and flattens the folds on the end face of the steel coil, and the compaction mechanism presses the rust-proof paper at the coil eye into the coil eye, completing the automatic folding and packaging process of the rust-proof paper on the outer ring of the steel coil.

The invention relates to a food-grade composite fruit and vegetable fresh-keeping agent, a preparation method thereof and application of the food-grade composite fruit and vegetable fresh-keeping agent in fruit and vegetable storage and transportation fresh-keeping and / or improvement of the content of functional components in fruits and vegetables. The fruit and vegetable fresh-keeping agent disclosed by the invention shows an excellent fresh-keeping effect before and after the harvest of various fruits and vegetables, and can effectively increase the content of functional components (such as anthocyanin and flavonoid) in the fruits and vegetables; besides, all the components in the fruit and vegetable fresh-keeping agent are easy to obtain and low in cost, and all the components of the fruit and vegetable fresh-keeping agent are edible, so that the fruit and vegetable fresh-keeping agent is safe, reliable and beneficial to human health. Therefore, the fruit and vegetable preservative disclosed by the invention has a wide application prospect and a remarkable market value.

The utility model discloses a stem cell cryopreservation bag, relates to medical instrument supplies technical field, the cryopreservation bag includes bag body mechanism, infusion mechanism, sampling mechanism, bag body mechanism includes storage bag, storage bag end fixed connection sealed edge, infusion mechanism is used for transporting stem cell and cryopreservation liquid, sampling mechanism is used for sampling, the sampling mechanism is used for sampling, the bag body mechanism is used for storing the stem cell and cryopreservation liquid, and the bag body mechanism is used for storing the stem cell and the cryopreservation liquid. The infusion mechanism is fixedly connected with the lower surface of the storage bag, and the upper surface of the storage bag is fixedly connected with the sampling mechanism. Meanwhile, a seal, a sampling tube and a sample bag are mounted at the top of the storage bag, so that part of stem cells can be independently isolated, and the effect of not polluting the stem cells in the cryopreservation bag is achieved.

A method for cryopreservation and recovery of larch olgensis embryogenic callus relates to the biotechnology field of forest breeding, and comprises the following steps: selecting an embryogenic cell line induced by immature seeds of larch olgensis, and subculturing the embryogenic cell line for 3-5 days to obtain embryogenic callus as a standby material; carrying out gradient pre-culture at the molar concentrations of 0.2 mol / L and 0.4 mol / L in sequence, wherein the culture is carried out at each concentration for 20-48 hours; after pre-culture, putting the embryogenic callus into a freezing tube, and adding a sterile freezing protection solution; and putting the freezing pipe into a programmed cooling box for programmed cooling, and immediately putting the freezing pipe into a liquid nitrogen biological container for storage. The method disclosed by the invention is simple and convenient in operation steps and obvious in effect, the subculture age limit of the larix olgensis embryonic callus is slowed down, and relatively good cell viability and development potential in the initial stage of induction are maintained, so that the occurrence of variation is effectively reduced, manpower and material resources consumed by long-term subculture materials can be saved, and the production cost is reduced. The method is of great significance to theoretical and practical application research of larix olgensis.

The invention discloses an elastic side bearing and a method for adjusting abrasion limit, the elastic side bearing comprises a side bearing main body, a support plate arranged at the top of the side bearing main body and a side bearing abrasion plate arranged on the support plate, the side bearing abrasion plate comprises an abrasion plate main body and a fixing ring, the wearing plate main body comprises a wearing layer and a non-wearing layer arranged at the bottom of the wearing layer, the fixing ring sleeves the outer side wall of the non-wearing layer and is in interference fit with the non-wearing layer, the upper surface of the fixing ring is in contact with the lower surface of the wearing layer, the fixing ring is pressed in a groove in the top of the supporting plate, and the upper surface of the wearing layer is higher than the upper surface of the supporting plate in elevation. The composite side bearing wearing plate structure combining the metal wearing layer and the non-wearing layer is introduced, and meanwhile, the thickness-adjustable fixing ring is introduced, so that a more efficient and convenient side bearing maintenance mechanism is realized. In this way, not only can the durability and reliability of the side bearing system be greatly improved, but also the maintenance cost during operation can be remarkably reduced, and substantial improvement is brought to the railway transportation industry.

The invention relates to the technical field of samplers, in particular to a manual adjusting sampler for ambient air detection, which comprises a base, a lantern ring movably sleeves the outer ring surface of the base, adjusting screws are movably mounted in the middles of four sides of the upper surface of the lantern ring through bearings, and a fixing ring is jointly movably mounted at the other ends of the adjusting screws. A fixing disc is fixedly arranged in the middle of the inner surface of the fixing ring, a microclimate sensor is fixedly installed on the upper surface of the fixing disc, a sampling point predictor is fixedly installed on the lower surface of the fixing disc, adjusting blocks are spirally and movably installed in the middles of the outer surfaces of the adjusting screws in a sleeving mode, and fixing frames are fixedly installed on the two sides of the lower surfaces of the adjusting blocks. And a sampling cylinder is clamped on the inner surface of the fixed frame. The sampler can be controlled to carry out targeted adjustment according to the distribution state of pollutants in air, so that the error of air sample collection is reduced, and the accuracy of an air detection result is guaranteed.

The invention relates to the technical field of food processing, and discloses okra minced fish and shrimp slices and a preparation method thereof. The preparation method of the okra minced fish and shrimp slices comprises the following steps: mixing and mincing tilapia meat and shrimp meat into meat paste, and mixing to obtain minced fish and shrimp mixture; smashing okra into paste to obtain okra paste; uniformly stirring the butter, the okra paste and the seasoning; then adding the prepared minced fish and shrimp mixture to obtain a mixture; and baking the mixed materials to obtain the okra minced fish and shrimp slices. According to the preparation method provided by the invention, the storage time of the minced fish and shrimp finished product is prolonged, the phenomenon of spoilage in the long-time storage process is avoided, and the problem that the existing commercially available minced fish and shrimp finished product is easy to spoilage in the long-time storage process is solved.

The utility model discloses an exhaust structure for exhausting pressure of an atomizing mechanism during assembly and an electronic cigarette thereof. The exhaust structure is realized in two aspects. In the first aspect, the exhaust structure for pressure discharge of the atomization mechanism during assembly comprises an oil cup and the atomization mechanism, the oil cup comprises an oil cup shell, an oil tank, a sealing assembly base and a suction nozzle, and a sealing ring is arranged between the bottom of the suction nozzle and the sealing assembly base in a sleeving mode; the atomizing mechanism comprises an atomizing shell, an atomizing core assembly, an oil inlet chamber and a convex ring arranged on one side of the top of the atomizing shell, the atomizing core assembly comprises an atomizing pipe, and the atomizing pipe is located on the inner wall of the convex ring; an air blocking column is arranged on one side of the sealing assembly base, an exhaust hole is formed in one side of the top of the atomization shell, and when the oil cup and the atomization mechanism are assembled, the exhaust hole is used for discharging pressure of the oil inlet chamber; after the oil cup and the atomization mechanism are assembled, the air blocking column blocks the exhaust hole; on the second aspect, the electronic cigarette comprises an exhaust structure used for exhausting pressure of the atomization mechanism during assembly, a shell and an electric control mechanism.