CN211608089U - Super long-term sterilization vacuum moisturizing fresh-keeping container - Google Patents

Super long-term sterilization vacuum moisturizing fresh-keeping container Download PDF

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CN211608089U
CN211608089U CN202020172928.9U CN202020172928U CN211608089U CN 211608089 U CN211608089 U CN 211608089U CN 202020172928 U CN202020172928 U CN 202020172928U CN 211608089 U CN211608089 U CN 211608089U
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fresh
module
vacuum
sterilization
keeping
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胡勤恒
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Abstract

The utility model discloses a sterilization vacuum moisturizing fresh-keeping container is imitated to overlength mainly relates to fresh-keeping technical field. Including an adiabatic airtight container body, set up on the container body and open and rather than the adiabatic airtight chamber door of complex, the container body constitutes an adiabatic airtight cavity with the chamber door jointly, super long-term sterilization vacuum moisturizing fresh-keeping container includes: the device comprises a heat-insulation airtight cavity, a sterilization module, a refrigeration module, a vacuumizing module and a humidifying module. The beneficial effects of the utility model reside in that: it creates a local sterile low-temperature water saturated vacuum environment; the fresh goods are placed in the fresh-keeping box, so that the effect of keeping the fresh goods fresh for a long time is achieved, and the fresh-keeping box is environment-friendly and low in consumption; compared with the conventional normal-pressure low-humidity cold storage and preservation method with extremely short preservation period, the method has remarkable economic benefit and social public value.

Description

Super long-term sterilization vacuum moisturizing fresh-keeping container
Technical Field
The utility model relates to a fresh-keeping technical field specifically is a sterilization vacuum moisturizing fresh-keeping container is imitated to overlength.
Background
According to the report of the free time of taiwan in china in 6 and 18 months in 2018: the total weight of expired food in a whole Taiwan mass vendor, convenience store, supermarket and the like in one year is more than thirty-six thousand metric tons, and the quantity is remarkable, so that great economic loss is caused. According to the investigation, the Taiwan 15-family members are investigated, and according to the annual business volume estimation, the food of 30.8 million yuan (new Taiwan currency) is discarded by volume dealer one year, the food of 7.3 million yuan is discarded by super business, the total amount is up to 38.1 million yuan, and if the food is converted into the nutrient lunch meal, 34 million weak schoolchildren can eat the food for one year.
According to statistics, most of the discarded foods are vegetables, fruits, meat or seafood, and the reasons for discarding include temporary use, breakage of external packages, or pure poor sale and over-ripening. Taking fruits as an example, bananas with black spots and guava with slightly damaged surfaces can be the target of being discarded, and as high as 57% of the people indicate, the fresh food materials have short storage life and are most easily discarded. Therefore, how to guarantee the fresh food is a fundamental measure for solving the waste problem.
Because the current environmental protection idea is more and more attentive, the use of Freon refrigerant is forbidden from the sustainable development perspective, which increases the difficulty of fresh-keeping means and provides higher technical requirements for food fresh-keeping.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ultra-long-term sterilization vacuum moisturizing fresh-keeping container, which creates a local sterilization low-temperature water saturated vacuum environment; the fresh goods are placed in the fresh-keeping box, so that the effect of keeping the fresh goods fresh for a long time is achieved, and the fresh-keeping box is environment-friendly and low in consumption; compared with the conventional normal-pressure low-humidity cold storage and preservation method with extremely short preservation period, the method has remarkable economic benefit and social public value.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
the utility model provides a sterilization vacuum moisturizing fresh-keeping container is imitated to overlength, includes the container body, set up on the container body and open and rather than airtight complex chamber door, the container body constitutes adiabatic airtight cavity with the chamber door, sterilization vacuum moisturizing fresh-keeping container is imitated to overlength installs adiabatic airtight cavity, sterilization module, refrigeration module, evacuation module, humidification module.
Preferably, the sterilization module comprises one or both of an ozone generator and a titanium dioxide photocatalyst for sterilization.
Preferably, the refrigeration module comprises a refrigerant compressor, an evaporator, a condenser, a capillary tube and a refrigerant in a pipeline which are connected, the evaporator is provided with an internal fan in a matching mode, and the condenser is provided with an external fan in a matching mode;
preferably, the sterilization module comprises an ozone generator and is arranged at an air outlet of the internal fan;
the vacuumizing module comprises a vacuum pump set, the vacuum pump set comprises one or more than one vacuum air pump which is formed by connecting in series or in parallel through a gas pipeline provided with a one-way valve and an electromagnetic valve, the input end of the vacuum pump set is provided with an air inlet pipe, and the output end of the vacuum pump set is provided with an air outlet pipe;
the humidifying module comprises a water storage tank, a water pipe is connected to the water storage tank, at least one spray head is arranged on the water pipe, and a liquid electromagnetic valve, a liquid one-way valve and an adjustable current limiter are arranged on the water pipe;
the atomizing spray head, the air inlet end of the air inlet pipe, the evaporator, the internal fan and the ozone generator are all arranged in the container body.
Preferably, the gas outlet pipe is provided with a gas one-way valve and connected to the water storage tank, the gas outlet pipe is provided with a gas outlet, and the front end of the gas outlet is provided with a pressure release valve.
Preferably, a water level sensor is arranged in the water storage tank.
Preferably, the air inlet of the air inlet pipe is provided with a filter.
Preferably, a humidity sensor, a temperature sensor and an air pressure sensor are installed in the container body.
Preferably, the bottom inboard of container body sets up the rack, refrigerant compressor, condenser, capillary, outside fan, vacuum pump group, water storage tank install in the rack, still be equipped with control panel on the rack, the last integration of control panel has the display screen to and be used for controlling the control key of sterilization module, refrigeration module, vacuum pump group, humidification module.
Preferably, a manual vacuum pressure release valve is arranged on the box door, and the inside and the outside of the heat-insulating airtight cavity can be in an isobaric state by starting the vacuum pressure release valve;
and/or
A microswitch is arranged at the opening and closing position of a door frame of the box door and linked with the opening and closing of the vacuumizing module, when the box door is opened, the microswitch is switched off to ensure that the pressure reducing module is not started, and when the box door is closed, the microswitch is switched on to ensure that the pressure reducing module is started;
and/or
An airtight seal is arranged on the periphery of the box door;
and/or
The box door is two and is connected with the container body pivot respectively.
Preferably, the container body side is reinforced by angle steel, and a heat insulation interlayer is arranged in the container body side wall.
Contrast prior art, the beneficial effects of the utility model reside in that:
the fresh-keeping function of the fresh-keeping goods is achieved by sterilizing the low-temperature water saturation vacuum environment, compared with the traditional refrigeration fresh-keeping container, the fresh-keeping period is prolonged by 5-10 times, and the environment is protected, and the consumption is low. If the fresh-keeping agent is put into application, fresh-keeping of fresh food in the processes of transportation and storage can be ensured, loss and waste of storage and transportation links are avoided, and the fresh-keeping agent has commercial value and social significance.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the vacuum pump unit shown in fig. 1 according to the present invention.
Fig. 3 is an overall schematic view of embodiment 3 of the present invention.
Fig. 4 is a schematic diagram of the internal structure of embodiment 3 of the present invention.
Fig. 5 is a schematic diagram of module installation according to embodiment 3 of the present invention.
Fig. 6 is a schematic view of the installation of the internal fan, evaporator and ozone generator of embodiment 3 of the present invention.
Fig. 7 is a schematic view of a water storage tank according to embodiment 3 of the present invention.
(note: valves, sensors, etc. associated with FIGS. 1 and 2, not depicted or shown in the following figures, but not forming any technical hurdles for those skilled in the art; omitted from the following figures due to difficulties in drawing and prevention of graphics clutter)
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
Example 1: ultra-long-acting bacterium-reducing vacuum moisturizing and fresh-keeping method
The method for vacuum preserving fresh-keeping with ultra-long effect bacteria reduction (hereinafter referred to as fresh-keeping method) is to put fresh goods into a closed container (heat-insulating airtight cavity) and firstly carry out bacteria reduction treatment; then the temperature is reduced to 2-5 ℃, and the internal air pressure is reduced to 400-500 Pa (note: 1Pa ═ 10Dyne/1 cm)2) And at the same time, maintaining the interior of the closed container in a saturated humidity statePreservation method.
The freshness preservation method is used in a sterilization low-temperature water saturation vacuum environment as the basic theoretical basis of the utility model to achieve the freshness preservation function of the fresh goods, and can keep the fresh goods fresh for a long term.
The current environmental protection issue is positive, fluorine-containing refrigerant is forbidden, and the refrigerant is saturated with water and kept fresh in vacuum, so that the refrigerant has environmental protection value; meanwhile, according to experiments, compared with the traditional refrigeration and preservation, the fresh-keeping period of the fresh-keeping food is prolonged by 5-10 times, so that the fresh-keeping food has a high commercial value.
Fresh items to be preserved include, for example: fish, meat, vegetables, fresh flowers or other cooked foods.
The sterilization is preferably performed by ozone sterilization, but is not limited to this example, and sterilization using a titanium dioxide photocatalyst or other types of sterilization is also suitable.
Example 2: fresh-keeping system of aseptic vacuum moisturizing
Can be installed in any heat-insulating airtight cavity 1.0 with an openable heat-insulating airtight door, and can sterilize the inside of the airtight cavity 1.0 and provide a sterilized low-temperature water saturated vacuum environment for preservation. The system specifically comprises the following modules:
and the sterilization module 5.0 is used for performing sterilization treatment on the heat-insulating airtight cavity through the control module 6.0.
Specifically, an ozone generator 5.1 is used for producing high-concentration ozone as a safe sterilization means; during the specific installation, the installation is fixed in fan 4.6 front side of refrigeration module 4.0, through fan 4.6, can with ozone generator, produced ozone molecule evenly distributed in the airtight cavity of adiabatic 1.0 of effect, do comprehensive safe disinfecting again to the fresh goods of just entering the cabinet. Without being limited to this example, a titanium dioxide photocatalyst sterilization module may also be used.
The refrigerating module 4.0 is used for refrigerating the heat-insulating airtight cavity, a fan is arranged on the refrigerating side of the refrigerating module, the refrigerating module can be used for forcibly cooling the fresh goods to the required low temperature when the fresh goods are put into the cabinet initially, and a low-temperature environment below 5 ℃ is manufactured in the heat-insulating airtight cavity 1.0 through the control module 6.0, and the optimal temperature is ideally 2-5 ℃.
The main module comprises a refrigerant compressor 4.1, an evaporator 4.4, a condenser 4.2, a capillary tube 4.3, a refrigerant in the pipeline, an internal Von fan 4.5 and an external fan 4.6.
The refrigerant compressor 4.1 pumps the refrigerant to the evaporator 4.4 through the capillary tube 4.3, and the refrigerant absorbs heat in the evaporator 4.4 and reduces the ambient temperature; the refrigerant returned by the evaporator 4.4 returns to the refrigerant compressor 4.1, is compressed and then is sent to the condenser 4.2, the refrigerant dictyophora gas is condensed and liquefied, and the absorbed heat is discharged to the surrounding environment; the evaporator 4.4 is disposed in the acting heat-insulating airtight cavity 1.0, and the pipelines of the evaporator 4.4 entering and exiting the heat-insulating airtight cavity 1.0 are all processed in an airtight way.
And the pressure reducing module 2.0 is used for carrying out pressure reduction treatment on the heat-insulating airtight cavity and controlling the pressure to be kept at 400-500 Pa through the control module 6.0.
The main module of the heat-insulating airtight cavity is a vacuum pump set 2.3, the vacuum pump set 2.3 comprises components shown in the schematic diagram of the attached figure 2, and comprises a connecting pipeline, a one-way valve 2.3.1, an electromagnetic valve 2.3.2.1, an electromagnetic valve 2.3.2.2 and the like; the vacuum air pump group consists of one vacuum air pump 2.3.3 or more than one vacuum air pump 2.3.3, the one-way valve 2.3.1, the electromagnetic valve 2.3.2 and the like; more than one vacuum air pump 2.3.3 is combined in series or in parallel through a one-way valve 2.3.1, an electromagnetic valve 2.3.2 and the like; especially, in the initial stage of air extraction, the air pressure in the heat-insulating airtight cavity 1.0 is still high, and when the air pressure is higher than 1kPa, a plurality of vacuum air extraction pumps 2.3.3 are combined in parallel to synchronously work so as to increase the instantaneous air extraction amount; at the end of air pumping, when the air pressure in the heat-insulating airtight cavity 1.0 is lower than 1kPa, a plurality of vacuum air pumps 2.3.3 work synchronously, and the air pumps 2.3.3 are combined in series to share the air pressure intensity between the air inlet and the air outlet.
An air inlet pipe 2.6 is arranged at the input end of the vacuum pump group 2.3, an air inlet 2.1 is arranged in the heat-insulating airtight cavity 1.0 for mounting, and an inlet filter can be additionally arranged on the air inlet 2.1 as required to serve as an air outlet in the heat-insulating airtight cavity 1.0. The gas inlet pipe 2.6 is provided with a gas one-way valve 2.2.
The output end of the vacuum pump set 2.3 is provided with an air outlet pipe 2.5, the air outlet pipe 2.5 is provided with an air one-way valve 2.2, and the air outlet pipe is connected into the water storage tank 3.1 to provide an air source for humidifying and spraying water to the water storage tank, thereby reasonably and comprehensively utilizing energy. The air outlet pipe 2.5 is provided with an air outlet arranged outside the heat-insulating airtight cavity 1.0, and the front end of the air outlet is provided with a pressure release valve 2.4 for controlling the air pressure of an air source input into the water storage tank.
And the humidifying module 3.0 is used for humidifying the heat-insulating airtight cavity and controlling the humidity to be 90% -saturated humidity through the control module 6.0.
The main module is a water storage tank 3.1, fill water in the water storage tank 3.1, water storage tank 3.1 can add water manually or through an outside water supply source automatic water supply. In the example, the water pipe provided with the liquid one-way valve 3.2 is connected with an external water source 3.3, the water storage tank 3.1 is matched with a water level sensor 3.4, and a detection head floating ball switch 3.5 of the water level sensor is arranged in the water storage tank 3.1 so as to control the liquid level inside the water storage tank 3.1.
A water pipe 3.6 is connected in a water storage tank, at least one group of spray heads 3.10 are distributed in a heat-insulating airtight cavity 1.0 of the water pipe 3.6 to provide required relative humidity, a liquid electromagnetic valve 3.7 (connected with a humidity sensor 6.3 through signals), a liquid one-way valve 3.8 and an adjustable current limiter 3.9 are arranged on the water pipe 3.6, the on-off circuit of the water pipe is controlled, whether the spray heads 3.10 spray or not is controlled, and flow control is further performed.
As a means of controlling the relative humidity within said insulating, air-tight cavity; the spray head 3.10, the relevant electromagnetic valve 3.7, the humidity sensor 1.2, the humidity control circuit 6.3, the air pressure sensor 1.4, the vacuum control circuit 6.2 and the like jointly form constant humidity control on the inside of the heat-insulating airtight cavity.
The water inlet of the water pipe 3.6 is positioned at the bottom of the water storage tank 3.1 so as to lead out the water therein.
And the detection module is used for detecting the humidity, the temperature and the air pressure of the installed heat-insulating airtight cavity 1.0, so that the obtained data information is fed back to the control module 6.0, and the control module judges and starts the corresponding module to operate according to the comparison between the feedback information and the threshold value.
The fresh-keeping device comprises a humidity sensor 1.2, a temperature sensor 1.3 and an air pressure sensor 1.4 which are all arranged in a closed cavity 1.0 to be fresh-kept, and the airtight local environment is monitored in real time.
Control module 6.0 for control sterilization module, refrigeration module, decompression module, humidification module, control includes:
the vacuum control circuit 6.2 is connected with the air pressure sensor 1.2 and used for pumping air and reducing pressure and realizing constant-pressure 400-500 Pa control on vacuum;
the humidity control circuit 6.3 is connected with the humidity sensor 1.2 and is used for humidifying and maintaining constant humidity control of saturated water vapor;
the temperature control circuit 6.4 is connected with the temperature sensor 1.3 and is used for cooling and realizing the control of constant temperature of 2-5 ℃.
The constant temperature, constant humidity, constant pressure, flow control and the like are integrated into a central control assembly which comprises a central control circuit 6.1, all control signals of a main pipe and completes the set work according to the parameters preset by a user; the central control assembly is combined with a related knob, a panel, a shell and the like to form the control panel, so that the operation is convenient;
when the refrigerator is used specifically, after fresh goods are put into the installed carrier, namely the heat-insulating airtight cavity 1.0, the sterilizing module 5.0 is started to sterilize through the central control circuit 6.1, the refrigerating module 4.0 is started synchronously to cool to 2-5 ℃, and the sterilizing module 5.0 and the refrigerating module 4.0 are closed after the sterilizing stroke and the refrigerating stroke are finished; then starting the vacuumizing module 2.0, and reducing the internal air pressure of the heat-insulating airtight cavity 1.0 to 400-500 Pa; meanwhile, the humidity monitoring also works synchronously, and the inside of the heat-insulating airtight cavity 1.0 is kept at the saturated humidity at any time through the humidifying module 3.0; the fresh goods are placed in the environment of sterilization, low temperature, low pressure and saturated humidity formed by the system, and can be preserved for an ultra-long time without damaging freshness, mildew and taint of odor. The shelf life is prolonged by 5-10 times.
Heat-insulating airtight cavity heat-insulating airtight cavity of heat-insulating airtight cavityExample 3: super-long-effect sterilization vacuum moisturizing fresh-keeping container
The system of example 2 was used and the above described freshness system was installed in the container model according to the installation and use requirements described above.
The container model is a specific implementation form of a heat-insulating airtight cavity 1.0, and specifically comprises the following components:
container body 1.0, for the seal structure container of rectangle, use the angle steel at frame side position to consolidate, increase the steadiness, inside sets up thermal-insulated intermediate layer, has the chamber door 1.1 of running from opposite directions, and the articulated fixing is on container body 1.0, and frame week side sets up the airtight strip of paper used for sealing, can keep the airtight of warehouse main part when closing, and chamber door 1.1 forms sealed inside cavity with container body 1.0 jointly and is used for depositing the fresh goods. When the fresh food storage box is opened, the opening is used as a passage for storing the fresh food into and out of the heat-insulating airtight cavity. A manual vacuum pressure release valve is arranged on the box door 1.1, and when the vacuum pressure release valve is manually opened, the inside and the outside of the heat-insulation airtight cavity can be in an isobaric state so as to open the airtight door. A microswitch is arranged at a door frame of the box door 1.1, when the airtight door is opened, the microswitch is in a circuit-breaking state because the inside and the outside of the heat-insulating airtight cavity 1.0 are in an isobaric state, and the vacuum pump set 2.3 cannot be started; if and only if the microswitch is in the on state when the door 1.1 is locked exactly, the vacuum pump group 2.3 can be in the running state.
The cabinet is arranged at one corner inside the container body, and the cabinet is formed by a rectangular frame 0.2, a coaming 0.1 (capable of being opened to form an access door) and a bottom plate 0.3.
The vacuum pump set 2.3, the water storage tank 3.1, the refrigerant compressor 4.1, the condenser 4.2, the capillary tube 4.3 and the external fan 4.6 are all arranged in the cabinet, the evaporator 4.4 and the internal fan 4.5 are arranged at the inner upper part of the container body 1.0, the ozone generator 5.1 is arranged at the front part of the internal fan 4.5 in the container body 1.0, and the ozone dispersion sterilization is realized by utilizing the fan of the internal fan 4.5. The spray head 3.10 is arranged at the top and sprays water mist downwards.
The modules installed in the cabinet and in the container body 1.0 are connected through corresponding water pipelines and gas pipelines, and each pipeline is airtight when penetrating through the surrounding plate 0.1.
Fresh goods are preserved by using the container of the example, and a local sterilization low-temperature water saturated vacuum environment is created; the fresh goods are placed in the fresh-keeping box, so that the effect of keeping the fresh goods fresh for a long time is achieved, and the fresh-keeping box is environment-friendly and low in consumption; compared with the conventional normal-pressure low-humidity cold storage and preservation method with extremely short preservation period, the method has remarkable economic benefit and social public value.

Claims (10)

1. The utility model provides an overlength is imitated sterilization vacuum and is moisturized fresh-keeping container which characterized in that, includes the container body, set up on the lateral wall of container body and can open and rather than airtight complex chamber door, the container body constitutes adiabatic airtight cavity with the chamber door, adiabatic airtight cavity, sterilization module, refrigeration module, evacuation module, humidification module are installed to the container body.
2. The ultra-long-acting sterilization vacuum moisturizing and freshness-keeping container according to claim 1, wherein the sterilization module comprises one or both of an ozone generator and a titanium dioxide photocatalyst sterilization.
3. The ultra-long effective sterilization vacuum moisture preservation and fresh-keeping container as claimed in claim 1, wherein,
the refrigeration module comprises a refrigerant compressor, an evaporator, a condenser, a capillary tube and a refrigerant in a pipeline which are connected, wherein the evaporator is provided with an internal fan in a matched mode, and the condenser is provided with an external fan in a matched mode;
the sterilization module comprises an ozone generator and is arranged at an air outlet of the internal fan;
the vacuumizing module comprises a vacuum pump set, the vacuum pump set comprises one or more vacuum air pumps which are combined in series or in parallel through a gas pipeline provided with a one-way valve and an electromagnetic valve, the input end of the vacuum pump set is provided with an air inlet pipe, and the output end of the vacuum pump set is provided with an air outlet pipe;
the humidifying module comprises a water storage tank, a water pipe is connected to the water storage tank, at least one spray head is arranged on the water pipe, and a liquid electromagnetic valve, a liquid one-way valve and an adjustable current limiter are arranged on the water pipe;
the atomizing spray head, the air inlet end of the air inlet pipe, the evaporator, the internal fan and the ozone generator are all arranged in the container body.
4. The ultra-long-acting sterilization vacuum moisturizing and freshness-retaining container according to claim 3, wherein a gas check valve is arranged on the gas outlet pipe, the gas outlet pipe is connected to the water storage tank, an exhaust port is arranged on the gas outlet pipe, and a pressure release valve is arranged at the front end of the exhaust port.
5. The ultra-long-term sterilizing vacuum moisturizing and freshness retaining container according to claim 3, wherein a water level sensor is arranged in the water storage tank.
6. The ultra-long-term sterilizing vacuum moisturizing and freshness preserving container as claimed in claim 3, wherein the air inlet of the air inlet pipe is provided with a filter.
7. The ultra-long-acting sterilization vacuum moisturizing and freshness-keeping container according to claim 1, wherein a humidity sensor, a temperature sensor and an air pressure sensor are mounted in the container body.
8. The ultra-long-efficiency sterilization vacuum moisturizing and fresh-keeping container according to claim 3, wherein a cabinet is arranged at one corner of the bottom of the inner side of the container body, the refrigerant compressor, the condenser, the capillary tube, the external fan, the vacuum pump set and the water storage tank are installed in the cabinet, a control panel is further arranged on the cabinet, and a display screen and control keys for controlling the sterilization module, the refrigeration module, the vacuumizing module and the humidifying module are integrated on the control panel.
9. The ultra-long effective sterilization vacuum moisture preservation and fresh-keeping container as claimed in claim 1, wherein,
a manual vacuum pressure release valve is arranged on the box door, and the inside and the outside of the sealed cavity can be in an isobaric state by starting the vacuum pressure release valve;
and/or
A microswitch is arranged at the opening and closing position of a door frame of the box door and linked with the opening and closing of the vacuumizing module, when the box door is opened, the microswitch is switched off to ensure that the vacuumizing module is not started, and when the box door is closed, the microswitch is switched on to ensure that the vacuumizing module is started;
and/or
An airtight seal is arranged on the periphery of the box door;
and/or
The box door is two and is connected with the container body pivot respectively.
10. The ultra-long-acting sterilization vacuum moisturizing and freshness-keeping container as claimed in claim 1, wherein the sides of the container body are reinforced by angle steel, and a heat insulation interlayer is arranged in the side wall of the container body.
CN202020172928.9U 2020-02-14 2020-02-14 Super long-term sterilization vacuum moisturizing fresh-keeping container Expired - Fee Related CN211608089U (en)

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Application Number Priority Date Filing Date Title
CN202020172928.9U CN211608089U (en) 2020-02-14 2020-02-14 Super long-term sterilization vacuum moisturizing fresh-keeping container

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Application Number Priority Date Filing Date Title
CN202020172928.9U CN211608089U (en) 2020-02-14 2020-02-14 Super long-term sterilization vacuum moisturizing fresh-keeping container

Publications (1)

Publication Number Publication Date
CN211608089U true CN211608089U (en) 2020-10-02

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