30results about How to "Long storage time" patented technology

The application discloses a preparation method of soybean oil body with antioxidant effect, and relates to the field of food processing and storage. The inner core of natural soybean oil body is hydrophobic triglyceride, which is lipophilic, and the outer part is covered by a phospholipid-oil body protein film, which is hydrophilic. The application utilizes the structural characteristics of natural soybean oil body with amphiphilicity, couples small-molecule compounds with antioxidant effect with soybean oil body protein, and wraps the antioxidant active substances into the inner part of the soybean oil body to prepare soybean oil body composite particles with antioxidant effect. The application improves the antioxidant capacity and storage stability of the soybean oil body.

The invention belongs to the technical field of supramolecular gels, and relates to a tooth whitening gel and a preparation method thereof, the tooth whitening gel is prepared from the following raw materials: a hydrogen peroxide aqueous solution, a glycyrrhizic acid compound, polyvinyl alcohol, carbomer, glycerin and water; the polyvinyl alcohol and the glycyrrhizic acid compound generate a first cross-linked network structure, and the carbomer and the glycyrrhizic acid compound are self-assembled to form a fibrous aggregate to form a second cross-linked network structure; the second cross-linked network structure and the first cross-linked network structure cooperate to fix hydrogen peroxide molecules. According to the hydrogen peroxide gel, the viscosity, the stability and the coating property of the gel are synergistically improved by constructing a double-network structure, the concentration of hydrogen peroxide can be adjusted according to requirements, the preservation time is long, and the tooth whitening capability is high; the potential leakage risk of the hydrogen peroxide solution in the storage, transportation and application processes is reduced, and the requirements of people on tooth whitening are met.

The application discloses a kind of based on nano-silver-porous silicon simultaneously SERS detection variety of mycotoxin biochip sensor and its preparation method and application, the sensor includes SERS substrate and SERS label two parts compositions, SERS substrate is by porous silicon surface magnetron sputtering on silver nanoparticles and silver nanoparticles surface connection three kinds of mycotoxin artificial antigen composition, SERS label is connected with nile blue and corresponding mycotoxin antibody gold nanoparticles.The application can be combined by each mycotoxin and porous silicon silver surface mycotoxin artificial antigen mycotoxin antibody on SERS label, by detecting the Raman signal of NBA on SERS label surface, realize three kinds of mycotoxin simultaneous quantitative analysis, detection speed is fast, sensitivity is high, while various toxins in gualou, malt and kudzu root recovery rate is all greater than 75%, the coefficient of variation of same batch is less than 5.2%, and the coefficient of variation of different batches is less than 7.8%.

This utility model discloses an influenza virus detection structure, including a shell, a sample pad, a conjugate pad, a nitrocellulose membrane, and gold-platinum nanoparticles. Nanoparticles are adsorbed onto the conjugate pad via electrostatic interaction. The gold-platinum nanoparticles are immobilized on the surface of the nanoparticles using a thiolized antibody. A pore size gradient transition layer is provided between the sample pad and the nitrocellulose membrane. The conjugate pad is surface-modified with low-density silane to encapsulate the gold-platinum nanoparticles. In this influenza virus detection structure, the gold-platinum nanoparticles are immobilized on the surface of the nanoparticles using a thiolized antibody. A hydrophobic band divides the conjugate pad into a fourth, third, second, and first conjugate pad. Different proportions of gold-platinum nanoparticles are set in the four regions to distinguish different influenza viruses. Furthermore, the gold-platinum nanoparticles provide high sensitivity, facilitating the detection of samples with low viral loads.

This invention provides a test tube storage device, belonging to the field of test tube storage technology. It includes a storage box, with a storage cover rotatably connected to one side of the upper surface of the storage box. A storage base plate, test tube rack, fixing components, a cooling plate, and a cooling fan are inserted into the lower surface of the storage box. This invention utilizes a design where a desiccant packet is placed inside the heat dissipation base after the heat dissipation cover is opened. The desiccant packet absorbs water, reducing condensation from the cooling element flowing into the heat dissipation base and outwards. The heat dissipation element dissipates heat from the cooling element, and the cooling fan draws heat from the cooling element into the heat dissipation base and expels it outside. The cooling element cools one end, and the cooling fan draws air from the storage box into the top of the cooling element for further cooling. The cold air is then expelled from the outlet into the storage box, further cooling it. This method preserves samples stored in test tubes within the storage box, slowing down sample metabolism and degradation, effectively inhibiting microbial growth and reproduction, and extending sample preservation time.

This utility model provides a recyclable, biodegradable, and environmentally friendly ink-absorbing needle-punched nonwoven fabric, relating to the field of nonwoven fabric technology. It includes: a nonwoven fabric body; the nonwoven fabric body has a three-layer composite structure, with an upper dense surface layer and a lower dense surface layer, and a middle loose support skeleton. Both the upper and lower dense surface layers are composed of fibers with a diameter of 2 micrometers. A nanofiber cellulose film with a thickness of 8 micrometers is laminated to the surface of the nonwoven fabric body. The nonwoven fabric body has a three-layer composite structure, with upper and lower polylactic acid dense layers (2 micrometers in diameter, each accounting for 20% of the total thickness) controlling ink diffusion and improving strength, and a middle loose support skeleton (6 micrometers in diameter, accounting for 60%, with a porosity of 75%) storing and penetrating ink. The three-dimensional structure is formed by needle punching at 200 needles / cm². The film contains 3% titanium dioxide for UV resistance. Both polylactic acid and nanofiber cellulose are biodegradable materials, suitable for printing, medical, and packaging fields, balancing environmental friendliness, printing performance, and functionality.

This application relates to an integrated refrigeration and cold storage constant temperature box and its manufacturing method. The integrated refrigeration and cold storage constant temperature box includes: a shell, the shell comprising a separately connected upper and lower shell, each comprising an internal chamber and a cooling cavity disposed around the internal chamber; the upper and lower shells are arranged in close proximity to form the overall chamber of the integrated refrigeration and cold storage constant temperature box, and the cooling cavities are mutually isolated, forming the refrigeration cavity and cold storage cavity of the integrated refrigeration and cold storage constant temperature box. The integrated refrigeration and cold storage constant temperature box of this invention provides cooling capacity to the chamber through the refrigeration cavity and cold storage cavity, ensuring the required cooling capacity for refrigerated items in cold chain storage and extending the cold chain preservation time of refrigerated items. The manufacturing method of the integrated refrigeration and cold storage constant temperature box enables the processing of thin-walled constant temperature boxes, and the airtightness of the refrigeration cavity and cold storage cavity in the constant temperature box is ensured by laser welding.

The invention relates to a portable blood glucose detection box which comprises a lower box body and an upper box body rotationally connected with the lower box body, a test paper storage unit is arranged on the lower box body, the test paper storage unit is used for storing test paper and is provided with a test paper access port, and a test paper compression device and a test paper output device are arranged in the test paper storage unit; the test paper compression device is used for extruding the test paper to one side of the test paper output device, so that the test paper is in close contact with the test paper output device; the test paper output device comprises a first box body, an opening is formed in one side, close to the test paper access port, of the first box body, a plurality of groups of rollers are mounted at the opening, the plurality of groups of rollers are connected with a first driving device through a rotating shaft, and rolling surfaces of the plurality of groups of rollers at least partially protrude out of the surface of the first box body and are in contact with the test paper; and an electric control board and a power supply device which are connected with the first driving device are arranged in the first box body. The test paper box can be used for placing blood glucose test articles and is convenient to store, and test paper is convenient to take and use.

The utility model relates to a hard packaging structure for shape-preserving fresh-locking fermented wheaten food. The hard packaging structure comprises a containing unit, a sealing cover, a flexible ventilation cover and a fixing device. The flexible ventilation cover is arranged between the containing unit and the sealing cover, and the flexible ventilation cover is fixed to the containing unit through a fixing device; when cooked wheaten food is steamed, the containing unit is not sealed, and after steaming, the top of the containing unit is sequentially provided with the flexible ventilation cover and the sealing cover to be sealed and fastened. The combined fresh-keeping packaging structure is adopted, cooked additive-free Chinese-style fermented stuffed wheaten food is placed in the containing unit, the flexible ventilation cover is arranged at the top of the containing unit to meet the ventilation requirement, and high-temperature disinfection is conducted on the containing unit while the wheaten food is steamed; after cooked wheaten food is steamed, the sealing cover is additionally arranged on the top of the flexible ventilation cover, and the sealing performance is good after the whole is cooled to normal temperature; the utility model has the characteristics of simple structure, convenience in operation and low use cost, and the preservation time of the wheaten food wrapper and stuffing can be prolonged without adding any preservative.

The application discloses a method for annual efficient production of centipedegrass seedling, which comprises the following steps: building a multi-layered culture shelf, preparing a seedbed, sowing seedlings, managing a rooting stage, managing a seedling forming stage, pre-harvest management, harvesting seedlings, and post-harvest management. According to the technical scheme, the centipedegrass seedlings can be rapidly propagated under the precise environment control of temperature and light by building a multi-layered shelf indoors, and the seedlings can be harvested 6-8 times per year after one-time planting, so that the annual efficient production of the centipedegrass seedlings is realized, sufficient seedling materials are provided for national land greening, sports field lawn planting and ecological restoration, and remarkable economic benefits are achieved.

This utility model relates to the field of plum cleaning technology, and discloses a spray-type plum cleaning device with a drying mechanism. It includes a connecting base, a frame at the top of the connecting base, and four support legs at the four corners between the connecting base and the frame. A mounting bracket is fixedly connected to the top of the frame, and a connecting plate is fixedly connected to the right side of the top of the mounting bracket. This spray-type plum cleaning device with a drying mechanism is equipped with a fan, heating wire, ventilation pipe, and exhaust pipe. When the fan and heating wire are activated, the fan blows the heat generated by the heating wire onto the surface of the plums through the ventilation pipe and exhaust pipe, thereby drying the moisture on the plum surface. This prevents the plums from easily breeding bacteria and mold due to moisture, extending the shelf life of the plums. The addition of two sets of second heating chambers further improves the drying efficiency, solving the problem of inconvenient drying of plums during transportation, which easily affects the quality of the plums.

The utility model discloses a multi -functional infusion soft bag, including soft bag main part, the top of soft bag main part is provided with straight pipe mouth and screw thread mouth, the surface fixed cover of straight pipe mouth is equipped with fixed cap, and the screw thread mouth is connected with screw cap, and the top of screw cap is provided with the easy -open buckle of cover jack -plug, the inside of fixed cap and screw cap all installs the rubber plug and the tablet of support below rubber plug respectively, and the straight pipe mouth and screw thread mouth are supported below the tablet in fixed cap and screw cap respectively inside. The utility model discloses through setting up straight pipe mouth for infusion and screw thread mouth for adding medicament on soft bag main part, can detach screw cap in clinical and add medicament in advance, then screw up screw cap and restore sealing, and the sealing effect is better, and the liquid medicine is not easy to be contaminated, and the storage time can be extended, when can detach easy -open buckle and add medicament from screw cap in the infusion process, avoid the influence fixed cap on normal infusion, reached according to the effect of clinical actual demand design, convenient practical.

The utility model relates to a perfume powder feeding device with drying function, perfume powder feeding device with drying function includes a bin, a feeding assembly, a weighing unit, controller and a desiccant storage bin, the desiccant storage bin can be targeted to the moistureproof protection of perfume raw materials in the bin, avoid raw material damp agglomeration, influence the flowability and weighing accuracy of powder raw material, the controller controls the feeding assembly controllable delivery to the weighing unit of powder raw material is weighed, the weighing unit real -time transmission weighing data in the controller, and this accurate regulation delivery weight of feeding assembly.

The utility model discloses a disinfectant container that the cover body can be opened automatically, contains bottle body, bottle lid and cover body opening and closing drive piece etc. Cover body opening and closing drive piece is located in the bottle lid, has miniature infrared inductor and hall angle sensor, both work cooperatively, when the hand is close and the bottle body is inclined, triggers annular circuit board control battery and supplies power for lower electromagnet, adsorbs upper electromagnet and drives silica gel sealing plug to pull out liquid outlet, and liquid flows out. In use, can set liquid expiration time through control button, display screen countdown time display remaining period, and indicating lamp changes color according to liquid time effect state. After use, the bottle body is straight and the hand is far away, and the device automatically closes the cover body. The device is convenient to operate, can prevent liquid volatile leakage, and is convenient for user to understand liquid time effect, improves use hygienic property and safety.

This utility model discloses a polymer micelle detection sampler, belonging to the field of sampler technology. This polymer micelle detection sampler includes a sampling mechanism and a storage mechanism. The sampling mechanism includes a sampling cylinder with a piston slidably mounted inside. A push-pull rod is fixedly mounted at the center of one side of the piston, and a handle is fixedly mounted on the bottom side of the sampling cylinder. The storage mechanism includes a connecting seat and a sample bottle. The bottom end of the connecting seat is connected to one side of the upper end of the sampling cylinder. A stirring rod is rotatably connected to one end of the connecting seat. An inlet tube is mounted on one side of the stirring rod at one end of the connecting seat. The sample bottle is sleeved on the outside of the stirring rod, and one end of the sample bottle is threadedly connected to the outside of one end of the connecting seat. A first one-way valve is embedded in one end of the sample bottle. This utility model can effectively improve the practicality of the polymer micelle detection sampler and has high practical value.

This invention provides a method for preparing sesame paste, relating to the field of sesame paste processing technology. The method involves selecting sesame seeds, washing and drying them to remove impurities, obtaining raw materials, heating the raw materials to obtain roasted sesame seeds, cooling the roasted sesame seeds and removing debris to obtain roasted sesame seeds to be ground, and grinding the roasted sesame seeds to a predetermined median diameter to obtain sesame paste. This sesame paste contains no additives, uses simple raw materials, and only controls the median diameter of the roasted sesame seeds. Without damaging the structure and properties of the proteins, the sesame paste has a delicate texture, rich aroma, is not prone to oil separation, has an unstable oil-paste interface, is not prone to rancidity, and has a long shelf life.

The utility model relates to a sampling detection device which comprises a sampling pipe, an annular flange is integrally formed on the peripheral side of the top end of the sampling pipe, a connector is fixedly connected to the upper surface of the annular flange, a plurality of air holes are formed in the peripheral side of the bottom end of the connector, and external threads are formed in the outer wall of the connector above the air holes. The top end of the connector is in threaded connection with a sealing cover through the external threads, a rubber column is connected to the bottom wall of the sealing cover, an outer air bag and an inner air bag which are of an annular structure are arranged on the inner side and the outer side of the bottom end of the connector respectively, and the outer air bag is communicated with the inner air bag through an air hole. The pressing ring rotationally connected to the bottom end of the sealing cover can be matched with the annular flange to extrude the outer air bag to contract, air in the outer air bag is pressed into the inner air bag through the air hole so that the inner air bag can be expanded, the expanded inner air bag can be tightly attached to the surface of the rubber column, and leakage of samples containing viruses stored in the sampling pipe is avoided as much as possible through secondary sealing of the sampling pipe.

This invention discloses a separator for concentrating red blood cells, relating to the field of medical device technology. It includes a shell, a top cover, a wear-resistant plate, an upper shell, and an inner shell. An umbrella-shaped top plate is located at the top of the inner cavity, and a hydrophilic microporous membrane is located at the bottom of the umbrella-shaped top plate, forming an adsorption chamber. A vertical straight tube is located at the top of the umbrella-shaped top plate, extending into the adsorption chamber. A secondary cover is located above the umbrella-shaped top plate within the inner cavity, and an integrated straight sleeve is located at the top of the secondary cover. The straight tube is located inside the straight sleeve, with their central axes coinciding. The length of the straight tube is greater than that of the straight sleeve. The top cover is fastened above a limiting plate, with a rubber component between them. A liquid tube is located at the top of the top cover, with an outlet at the middle and an inlet at the top. Both the straight tube and the straight sleeve extend into the liquid tube. This invention removes oxygen and carbon dioxide more thoroughly, avoiding blood deterioration caused by the aggregation of hemolysin, hemoglobin, and ATP.

The invention discloses laser curing type conductive silver ink for electronic components and a preparation method of the laser curing type conductive silver ink. The laser curing type conductive silver ink comprises a silver precursor, an amine complexing agent, a non-polar organic solvent and an additive, a silver precursor and an amine complexing agent form a uniform and stable silver-amine complex solution in a non-polar organic solvent. The preparation method comprises the following steps: uniformly mixing a non-polar organic solvent, an amine complexing agent and an additive, then adding a silver precursor, stirring until the silver precursor is completely dissolved, and filtering to obtain the conductive silver ink with excellent conductivity, stability and printing performance. The invention also provides a method for preparing a conductive film on a substrate by using the conductive silver ink through a laser sintering process. According to the conductive silver ink, the light absorption characteristic of the silver-amine complex is regulated and controlled through the non-polar solvent, so that the conductive silver ink perfectly adapts to a laser sintering process, and the conductive silver ink has the advantages of being low in curing energy consumption, short in curing time, free of thermal damage to a flexible base material, high in conductivity of a formed silver film, high in adhesive force and the like, and is suitable for the fields of flexible electronics, printed circuits and the like.

A coal sample storage container includes an outer barrel, an outer cover, a coal bucket, a coal bucket lid, and a buffer tank. The outer barrel has a nitrogen inlet pipe at its bottom, with a switch valve connected to a nitrogen filling device and a distributor connecting to the inner bottom and upper gas supply pipes of the outer barrel. The outer cover is a sleeve-type component that can cover the upper opening of the outer barrel and has an exhaust pipe connected to a thermometer and hygrometer. The exhaust pipe has a one-way exhaust valve connected to a nitrogen concentration detector. The coal bucket stores coal samples, and the coal bucket lid covers the upper opening of the coal bucket and has an exhaust hole and a nitrogen inlet pipe. The buffer tank is located between the outer barrel and the coal bucket to buffer the temperature and pressure differences between them. This invention overcomes the shortcomings of existing technologies, creating a sealed, oxygen-free environment for coal sample storage, effectively reducing nitrogen leakage, displaying temperature and humidity information of the coal sample in real time, extending its storage time, facilitating unified management, and ensuring the impartiality and authority of testing.

The utility model discloses a wormwood crushing device for moxibustion patch processing, which comprises a support, a first motor mounted at one end of the support, a rotating roller mounted at the output end of the first motor, a conveying belt arranged on the outer side of the rotating roller, a crushing box welded at the top end of the support, a feed port mounted at the top end of the crushing box, and a discharge port mounted at the bottom end of the crushing box. A smashing mechanism is installed in the smashing box, and a drying mechanism is installed on one side of the smashing box. The drying box is installed on one side of the smashing box, when wormwood falls to the top end of the conveying belt after being smashed, the wormwood can enter the drying box along with the conveying belt under driving of the first motor, and the multiple sets of heating pipes are installed in the drying box and can dry the wormwood; and in the drying process, a fan can accelerate air flow in the drying box, and ventilation holes can ensure smooth air flow, so that the aim that the wormwood crushing device for moxibustion patch processing can dry crushed wormwood is achieved.

An electron beam curing method, materials, and equipment for complex ceramic components are disclosed. This method employs a focused electron beam with a variable beam diameter to selectively cure and form ceramic materials containing photosensitive resin, layer by layer, to create complex components. These components are then sintered to obtain the final complex ceramic component. Due to the high penetration of the electron beam and the real-time control of the beam diameter, this method can not only form complex, irregularly shaped, high-density components such as ultrafine carbides, nitrides, and ultra-high temperature ceramics, but also reduce the difficulty of sintering. Simultaneously, the real-time adjustment of the beam diameter allows for efficient filling of large areas within complex components and precise shaping of fine contours. Furthermore, the high vacuum requirement during electron beam curing significantly reduces defects such as pores within the material. Since electron beam curing can reduce or eliminate the need for initiators, the storage stability of the prepared ceramic materials is also greatly improved. This represents a novel additive manufacturing process for high-performance complex ceramic components.

The utility model provides a compact wine cabinet convenient to install for a vehicle, and belongs to the technical field of vehicle-mounted storage equipment. Comprising a shell, a magnetic strip fixedly installed on the side wall of the shell, a cabinet door hinged to the side wall of the shell, a sealing strip fixedly installed on the side wall of the cabinet door, a cup holder assembly arranged on the inner surface of the shell, a wine rack assembly arranged on the surface of the cup holder assembly and used in cooperation with the cup holder assembly, and a protection assembly arranged in an inner cavity of the shell. Rapid opening, closing and effective sealing are achieved through the magnetic attraction type cabinet door and the sealing structure. The cup rack assembly fixes wine cups through cooperation of the supporting plates and the limiting holes, the wine rack assembly adopts a layered fixing structure to ensure the stability of wine bottles, and the problem of wine set collision caused by vehicle shaking is effectively solved. A multi-layer composite protection structure has excellent heat insulation and heat preservation performance while ensuring light weight, and the storage time of wine products is prolonged; the device is adaptive to the clearance space of the vehicle seat, is convenient to mount, and has practicability and safety.

The application discloses a method for preparing formed fuel by mixing semi-dried sludge and oil-tea camellia fruit hulls, and the method comprises the following steps: (1) washing and drying the oil-tea camellia fruit hulls, then crushing and sieving the oil-tea camellia fruit hulls to obtain oil-tea camellia fruit hull powder; drying high-moisture sludge to obtain semi-dried sludge; (2) baking the oil-tea camellia fruit hull powder under a mixed atmosphere of oxygen and nitrogen to obtain baked oil-tea camellia fruit hulls, or pyrolyzing the oil-tea camellia fruit hull powder under a nitrogen atmosphere to obtain oil-tea camellia fruit hull biochar; (3) mixing and stirring the semi-dried sludge and the baked oil-tea camellia fruit hulls or the oil-tea camellia fruit hull biochar, uniformly placing water, and then preparing formed fuel. The method is simple, easy to operate and low in cost, the prepared formed fuel particles can realize rapid reduction of urban sludge and recycling of energy, and the method has the advantages of low energy consumption, high particle strength, no pollution and the like when the formed particles are prepared.

The application discloses a method and device for preparing nanometer bubbles, and the method comprises the following steps: adding a semiconductor and a liquid into a container, wherein the liquid submerges at least a part of the semiconductor; introducing a gas into the liquid; and irradiating the semiconductor and the liquid by using a light source. The application can prepare small and uniform nanometer bubbles which can stably exist in a solution, the particle size of the nanometer bubbles is basically concentrated in 2nm-15nm, the specific surface area of the nanometer bubbles is greatly improved, and the treatment effect of the nanometer bubble solution is improved. Meanwhile, the obtained nanometer bubble solution can be kept for more than one month, and the storage time is relatively long.

The utility model discloses a kind of feed trucks for laying duck feeding, it is related to livestock breeding equipment technical field.The utility model includes mobile base and equipment shell, the bottom of equipment shell is fixedly connected at the top of mobile base, the inner wall bottom of equipment shell is fixedly connected with feed tank, the side of feed tank is provided with cooling device.The utility model realizes efficient heat dissipation and anti-caking protection to feed by cooling device, driving motor drives impeller shaft to produce airflow, cooperate with air-permeable net to accelerate air circulation in feed tank, simultaneously by pulley transmission to make driven pulley shaft drive auxiliary fin rotation, utilize speed-up design to enhance heat dissipation efficiency, double driven pulley shaft symmetrical distribution ensures that heat dissipation is uniform, stirring shaft synchronously stirs feed, avoid local heat accumulation, effectively prevent feed from caking metamorphism due to high temperature, prolong the feed preservation time, solved the problem that feed is easily metamorphosed in prior art, improved the preservation quality and feeding convenience of egg duck feed.

This invention relates to an experimental puppy food, comprising: 10-30 parts puffed corn, 1-5 parts puffed soybean meal, 15-30 parts puffed rice flour, 25-40 parts chicken meal, 3-10 parts olive oil, 3-10 parts duck fat, 0.5-1 part limestone powder, 0.02-0.05 parts choline chloride, 0.1-0.3 parts sodium chloride, 1-4 parts chicken liver powder, 4-8 parts beef flavoring agent, 4-8 parts milk powder, and 3-4 parts multivitamin and mineral premix; it also includes inactivated probiotics, with 1-6g of inactivated probiotics added per kg of puppy food, the inactivated probiotics including Pediococcus lactis CGMCC No. 23551; and it also includes Eucommia ulmoides leaf extract, with 4-12g of Eucommia ulmoides leaf extract added per kg of puppy food. The experimental puppy food mentioned above was fortified with inactivated probiotics and plant extracts to improve the intestinal microecological balance of the experimental dogs, increase the digestibility and utilization of the dog food, and enhance the stress resistance of the puppies. The prepared dog food has low hardness, making it easy for puppies to eat during the weaning transition period and reducing stress. The milk powder uses an external spray coating process to enhance the immune function of the experimental puppies, and nitrogen packaging helps to preserve the feed.

This utility model discloses a sealing and packaging equipment for spiced beef, belonging to the field of packaging and sealing. It includes a workbench with a support plate fixedly connected to its bottom. A groove is formed on the back of the support plate, and a processing mechanism is inserted into the groove. A placement groove is formed in the center of the upper surface of the workbench, and sliding grooves are formed on both sides of the upper surface. A cooling mechanism is slidably connected inside the sliding grooves, and the cooling mechanism includes a frame. Through the coordinated use of these devices, the beef is cooled again while being processed and sealed by the cooling mechanism. The cooling mechanism can quickly reduce the temperature of the sealing area, ensuring that the sealing material cools and sets, avoiding deformation or instability of the seal due to high temperature. Rapid cooling after sealing can reduce the temperature inside the packaging and the sealing area, slowing down bacterial growth and thus extending the shelf life of the beef.

The utility model relates to the technical field of medical instruments, in particular to a medical specimen transfer device which comprises a box, a specimen storage part and a cooling part, and the box is used for providing a closed space; the specimen storage piece is arranged in the box body and is used for storing and fixing specimens; the cooling parts are used for cooling the specimens on the specimen storage part, the two cooling parts are arranged in the box body, and the specimen storage part is located between the two cooling parts. According to the medical specimen storage device, the specimen storage piece is located between the two cooling pieces, the specimen on the specimen storage piece can be cooled uniformly and efficiently, the low-temperature environment needed by the specimen can be better maintained, the preservation time of the specimen is prolonged, the activity and integrity of the specimen are guaranteed, and the strict requirement of the medical specimen for the preservation condition is met.

This utility model discloses a highly airtight magnetic self-locking coffin structure, belonging to the technical field of magnetic self-locking coffins. It includes a coffin body, with a cover plate installed on the upper surface of the coffin body. A magnetic self-locking assembly is installed between the coffin body and the cover plate, and a protective assembly is installed inside the coffin body. The magnetic self-locking assembly includes multiple mounting slots inside the coffin body. Multiple mounting blocks matching the mounting slots are fixedly connected to the lower surface of the cover plate. Through the cooperation of magnetic blocks one, two, three, and four, precise alignment of the cover plate and the coffin body can be achieved, simplifying the installation operation. Simultaneously, the cooperation of the mounting slots, mounting blocks, positioning slots, positioning blocks, and a return spring forms a mechanical lock, constructing a multi-layered and stable locking system to prevent accidental opening of the cover plate. The tight filling of the gap between the cover plate and the coffin body by the sealing gasket effectively isolates air, moisture, and dust, ensuring a stable environment inside the coffin.