CN105540056B - Intelligent vacuum Fresh-keeping mess tin and its control method - Google Patents
Intelligent vacuum Fresh-keeping mess tin and its control method Download PDFInfo
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- CN105540056B CN105540056B CN201610115568.7A CN201610115568A CN105540056B CN 105540056 B CN105540056 B CN 105540056B CN 201610115568 A CN201610115568 A CN 201610115568A CN 105540056 B CN105540056 B CN 105540056B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
- B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
- B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
- B65D81/2015—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in an at least partially rigid container
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C11/20—Lunch or picnic boxes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Gyroscopes (AREA)
Abstract
The invention discloses intelligent vacuum Fresh-keeping mess tin and its control method, including lunch box body, lid, take out deflation structure, control module, take out deflation structure, control module is arranged in lid, lid is detachably connected with lunch box body, deflation structure is taken out in control module control, the control method of intelligent vacuum Fresh-keeping mess tin includes battery BT1 electric power detection, whether lunch box is in horizontality detection, whether lid carries out rotation detection, whether lunch box body covers lid detection, the present invention is evacuated by aspiration pump to Fresh-keeping mess tin, so that leakage rate is substantially reduced, the degree for forming vacuum is high, fresh keeping time is long, it is of good preservation effect, the present invention is more intelligent, service life is long.
Description
Technical field
The present invention relates to intelligent vacuum Fresh-keeping mess tin and its control method.
Background technology
Vacuum freshness retaining lunch box has two kinds currently on the market, and a kind of is that also one kind is to use come fresh-keeping by manual pumping
Small inflator is evacuated to lunch box, and both are all extract gas volume 1% to 2%, so that the air pressure formed inside and outside lunch box
Difference, but both ways are more mechanical and are extremely difficult to whole vacuum, and also fresh keeping time is short, and fresh-keeping effect is poor.Work as needs
It is to utilize inlet duct, inlet duct is usually mechanical Plastic valve when returning to normal barometric pressure value from vacuum state.
The content of the invention
The purpose of the present invention is to overcome in existing product deficiency there is provided a kind of fresh keeping time length, intelligence of good preservation effect
Vacuum freshness retaining lunch box and its control method.
In order to achieve the above object, the present invention is achieved by the following technical solutions：
Intelligent vacuum Fresh-keeping mess tin, including lunch box body, lid, deflation structure, control module are taken out, the extraction is depressed
Structure, control module are arranged in lid, and the lid is detachably connected with lunch box body, and the deflation structure of taking out includes magnetic valve
A, magnetic valve B, aspiration pump, three-way pipe C, three-way pipe D, a branch pipe of the magnetic valve A connection three-way pipes C, the magnetic valve A
Connect aspiration pump, a branch pipe of the aspiration pump connection three-way pipe D, another branch pipe connection magnetic valve of the three-way pipe C
B, another branch pipe of the magnetic valve B connection three-way pipes D, the supervisor of the three-way pipe D is fixed on the outside of lid, the threeway
Pipe C supervisor is connected with lunch box body, and deflation structure is taken out in control module control, the control module include controller,
Pressure and temperature sensor module, gyroscope and acceleration sensor module, charging module, battery BT1, battery voltage monitoring mould
Block, Voltage stabilizing module, the pressure and temperature sensor module, gyroscope and acceleration sensor module, charging module, magnetic valve
A, magnetic valve B, battery voltage monitoring module, Voltage stabilizing module all connect controller, the Voltage stabilizing module, battery voltage monitoring mould
Block, battery BT1 connect charging module.
Pressure includes pressure and temperature sensor S1 with temperature sensor module, and the pressure is with temperature sensor S1's
CSB ports, SDA ports, SCL ports, INT1 ports connection controller.
Gyroscope includes gyroscope and acceleration transducer U2, resistance R23, resistance R24, electricity with acceleration sensor module
Hinder R25, resistance R26, resistance R27, electric capacity C26, electric capacity C28, electric capacity C29, NPN triode Q5, the gyroscope and acceleration
Sensor U2 CPOUT ports pass through electric capacity C26 connection earth signal GND, the SCL ends of the gyroscope and acceleration transducer U2
Mouthful, SDA ports connection controller, the gyroscope and acceleration transducer U2 SCL ports are connected power supply by resistance R26
VMCU, the gyroscope and acceleration transducer U2 SDA ports are connected power supply VMCU by resistance R27, the gyroscope with
Acceleration transducer U2 INT ports pass through resistance R24 connection NPN triodes Q5 base stage, the base stage of the NPN triode Q5
Pass through resistance R25 connection earth signals GND, emitter stage connection the earth signal GND, the NPN triode Q5 of the NPN triode Q5
Colelctor electrode connection controller, the colelctor electrode of the NPN triode Q5 is also connected with power supply VMCU.
Charging module includes charging chip U3, electric capacity C32, electric capacity C34, resistance R36, charger G1, the charging chip
U3 VCC ports connection charger G1, the charging chip U3 VCC ports also pass through electric capacity C32 connection earth signal GND, institute
CHRG ports, the PROG ports for stating charging chip U3 GND ports connection earth signal GND, the charging chip U3 all connect control
Device processed, the BAT ports of the charging chip U3 pass through electric capacity C34 connection earth signals GND, the PROG ports of the charging chip U3
By resistance R36 connection earth signals GND, the BAT ports of the charging chip U3 pass through battery BT1 connection earth signals GND.
Battery voltage monitoring module includes resistance R42, resistance R44, the resistance R42 one end connect charging chip U3's
BAT ports, the other end of the resistance R42 passes through resistance R44 connection earth signals GND, the other end connection control of the resistance R42
Device processed.
Voltage stabilizing module includes voltage stabilizing chip U5, electric capacity C35, electric capacity C36, electric capacity C39, the IN ports of the voltage stabilizing chip U5
Charging chip U3 BAT ports are connected, the IN ports of the voltage stabilizing chip U5 are described also by electric capacity C39 connection earth signals GND
Voltage stabilizing chip U5 GND ports connection earth signal GND, the power supply VMCU connection voltage stabilizing chips U5 OUT terminal mouthful, the voltage stabilizing
Chip U5 OUT terminal mouthful is also by electric capacity C35 connection earth signals GND, and the electric capacity C35 is in parallel with electric capacity C36.
The control method of intelligent vacuum Fresh-keeping mess tin, including step in detail below：
(1), controller is initialized；
(2), controller detects battery BT1 electricity by battery voltage monitoring module, judges whether abundance, if battery
BT1 electricity is sufficient, then carries out step (3), and otherwise charging module charges to battery BT1；
(3), controller judges whether lunch box body covers lid by pressure and temperature sensor module, if lunch box body
Lid is covered, then carries out step (4), otherwise jump procedure (2)；
(4), controller judges whether lunch box is in horizontality by gyroscope and acceleration sensor module, if lunch box
In horizontality, then step (5) is carried out, otherwise adjust the state of lunch box, until lunch box in horizontality carries out step again
(5)；
(5), controller control takes out deflation structure and carries out pumping work；
(6), controller detects battery BT1 electricity by battery voltage monitoring module, judges whether abundance, if battery
BT1 electricity is sufficient, then carries out step (7), and otherwise controller control takes out deflation structure and carries out deflation operations, and charging module is to electricity
Pond BT1 is charged；
(7), controller detects whether lid is rotated by gyroscope and acceleration sensor module, if lid is carried out
Rotation, then controller control takes out deflation structure and carries out deflation operations, then carries out step (2), otherwise jump procedure (6).
Beneficial effects of the present invention are as follows：The present invention is evacuated by aspiration pump to Fresh-keeping mess tin so that gas leakage speed
Rate is substantially reduced, and the degree for forming vacuum is high, fresh keeping time length, of good preservation effect；When lid is covered, controller, pressure are utilized
By force with gas pressure intensity mutation analysis of the temperature sensor module to lunch box, start air suction process, it is more intelligent；Utilize control
Device, gyroscope and acceleration sensor module are analyzed the anglec of rotation of lid, are deflated, it is to avoid push button operation
Frequent breakage situation occurs, and service life is long.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the system block diagram of the control module of the present invention；
Fig. 3 is pressure and the circuit theory diagrams of temperature sensor module；
Fig. 4 is gyroscope and the circuit theory diagrams of acceleration sensor module；
Fig. 5 is charging module and the circuit theory diagrams of battery voltage monitoring module；
Fig. 6 is the circuit theory diagrams of Voltage stabilizing module；
Fig. 7 is program flow diagram of the invention.
Embodiment
Technical scheme is described further with reference to Figure of description：
As shown in Fig. 1 to Fig. 6, intelligent vacuum Fresh-keeping mess tin, including lunch box body 1, lid 8, take out deflation structure, control mould
Block, the deflation structure, control module taken out is arranged in lid 8, and the lid 8 is detachably connected with lunch box body 1, described to take out
Deflation structure includes magnetic valve A2, magnetic valve B6, aspiration pump 3, three-way pipe C7, three-way pipe D4, the magnetic valve A2 connections threeway
A pipe C7 branch pipe, the magnetic valve A2 connections aspiration pump 3 a, branch pipe of the connection three-way pipe of aspiration pump 3 D4 is described
Three-way pipe C7 another branch pipe connection magnetic valve B6, another branch pipe of the magnetic valve B6 connection three-way pipes D4, described three
Siphunculus D4 supervisor is fixed on 5 on the outside of lid, and the supervisor of the three-way pipe C7 is connected with lunch box body 1, the control module
Deflation structure is taken out in control, and the control module includes controller 23, pressure and temperature sensor module 21, gyroscope and acceleration
Sensor assembly 22, charging module 24, battery BT127, battery voltage monitoring module 26, Voltage stabilizing module 25, the pressure and temperature
Spend sensor assembly 21, gyroscope and acceleration sensor module 22, charging module 24, magnetic valve A2, magnetic valve B6, battery electricity
Pressure monitoring modular 26, Voltage stabilizing module 25 all connect controller 23, the Voltage stabilizing module 25, battery voltage monitoring module 26, battery
BT127 connects charging module 24.
Pressure includes pressure and temperature sensor S1 with temperature sensor module 21, and the pressure is with temperature sensor S1's
CSB ports, SDA ports, SCL ports, INT1 ports connection controller.Pressure and temperature sensor S1 model HP203B or
HP206C。
Gyroscope and acceleration sensor module 22 include gyroscope and acceleration transducer U2, resistance R23, resistance R24,
Resistance R25, resistance R26, resistance R27, electric capacity C26, electric capacity C28, electric capacity C29, NPN triode Q5, the gyroscope is with accelerating
The CPOUT ports for spending sensor U2 pass through electric capacity C26 connection earth signal GND, the SCL of the gyroscope and acceleration transducer U2
Port, SDA ports connection controller, the gyroscope and acceleration transducer U2 SCL ports are connected power supply by resistance R26
VMCU, the gyroscope and acceleration transducer U2 SDA ports are connected power supply VMCU by resistance R27, the gyroscope with
Acceleration transducer U2 INT ports pass through resistance R24 connection NPN triodes Q5 base stage, the base stage of the NPN triode Q5
Pass through resistance R25 connection earth signals GND, emitter stage connection the earth signal GND, the NPN triode Q5 of the NPN triode Q5
Colelctor electrode connection controller, the colelctor electrode of the NPN triode Q5 is also connected with power supply VMCU.Gyroscope and acceleration transducer
U2 model MPU6050.
Charging module 24 includes charging chip U3, electric capacity C32, electric capacity C34, resistance R36, charger G1, the charging core
Piece U3 VCC ports connect charger G1, the charging chip U3 VCC ports also by electric capacity C32 connection earth signal GND,
GND ports connection the earth signal GND, the charging chip U3 of the charging chip U3 CHRG ports, PROG ports are all connected
Controller, the BAT ports of the charging chip U3 pass through electric capacity C34 connection earth signals GND, the PROG ends of the charging chip U3
Mouth is by resistance R36 connection earth signals GND, and the BAT ports of the charging chip U3 pass through battery BT1 connection earth signals GND.Fill
Electrical chip U3 model STC4054.
Battery voltage monitoring module 26 includes resistance R42, resistance R44, the resistance R42 one end connection charging chip U3
BAT ports, the other end of the resistance R42 passes through resistance R44 connection earth signals GND, the other end connection of the resistance R42
Controller.
Voltage stabilizing module 25 includes voltage stabilizing chip U5, electric capacity C35, electric capacity C36, electric capacity C39, the IN ends of the voltage stabilizing chip U5
Mouth connection charging chip U3 BAT ports, the IN ports of the voltage stabilizing chip U5 also pass through electric capacity C39 connection earth signal GND, institute
Voltage stabilizing chip U5 GND ports connection earth signal GND, the power supply VMCU connection voltage stabilizing chips U5 OUT terminal mouthful are stated, it is described steady
Press chip U5 OUT terminal mouthful also by electric capacity C35 connection earth signals GND, the electric capacity C35 is in parallel with electric capacity C36.
The control method of intelligent vacuum Fresh-keeping mess tin, including step in detail below：
(1), controller is initialized；
(2), controller detects battery BT1 electricity by battery voltage monitoring module, judges whether abundance, if battery
BT1 electricity is sufficient, then carries out step (3), and otherwise charging module charges to battery BT1；
(3), controller judges whether lunch box body covers lid by pressure and temperature sensor module, if lunch box body
Lid is covered, then carries out step (4), otherwise jump procedure (2)；
(4), controller judges whether lunch box is in horizontality by gyroscope and acceleration sensor module, if lunch box
In horizontality, then step (5) is carried out, otherwise adjust the state of lunch box, until lunch box in horizontality carries out step again
(5)；
(5), controller control takes out deflation structure and carries out pumping work；
(6), controller detects battery BT1 electricity by battery voltage monitoring module, judges whether abundance, if battery
BT1 electricity is sufficient, then carries out step (7), and otherwise controller control takes out deflation structure and carries out deflation operations, and charging module is to electricity
Pond BT1 is charged；
(7), controller detects whether lid is rotated by gyroscope and acceleration sensor module, if lid is carried out
Rotation, then controller control takes out deflation structure and carries out deflation operations, then carries out step (2), otherwise jump procedure (6).
The present invention is evacuated by aspiration pump to Fresh-keeping mess tin so that leakage rate is substantially reduced, and forms vacuum
Degree is high, fresh keeping time length, of good preservation effect；When lid is covered, using controller, pressure and temperature sensor module to meal
The gas pressure intensity mutation analysis of box, starts air suction process, more intelligent；Utilize controller, gyroscope and acceleration transducer
Module is analyzed the anglec of rotation of lid, is deflated, it is to avoid the frequent breakage situation of push button operation occurs, and uses the longevity
Life length.
It should be noted that listed above is only a kind of specific embodiment of the invention.It is clear that the invention is not restricted to
Upper embodiment, can also there is many deformations.
In a word, all changes that one of ordinary skill in the art directly can export or associate from present disclosure
Shape, is considered as protection scope of the present invention.
Claims (3)
1. intelligent vacuum Fresh-keeping mess tin, it is characterised in that including lunch box body (1), lid (8), take out deflation structure, control mould
Block, the deflation structure, control module taken out is arranged in lid (8), and the lid (8) is detachably connected with lunch box body (1),
The deflation structure of taking out includes magnetic valve A (2), magnetic valve B (6), aspiration pump (3), three-way pipe C (7), three-way pipe D (4), described
Magnetic valve A (2) connection three-way pipe C (7) branch pipe, magnetic valve A (2) the connection aspiration pump (3), the aspiration pump (3)
Connect three-way pipe D (4) branch pipe, another branch pipe connection magnetic valve B (6) of the three-way pipe C (7), the magnetic valve B
(6) connection three-way pipe D (4) another branch pipe, the supervisor of the three-way pipe D (4) is fixed on the outside of lid (5), the threeway
Pipe C (7) supervisor is connected with lunch box body (1), and deflation structure is taken out in the control module control, and the control module includes control
Device (23) processed, pressure and temperature sensor module (21), gyroscope and acceleration sensor module (22), charging module (24),
Battery BT1 (27), battery voltage monitoring module (26), Voltage stabilizing module (25), the pressure and temperature sensor module (21), top
Spiral shell instrument and acceleration sensor module (22), charging module (24), magnetic valve A (2), magnetic valve B (6), battery voltage monitoring mould
Block (26), Voltage stabilizing module (25) all connect controller (23), the Voltage stabilizing module (25), battery voltage monitoring module (26), electricity
Pond BT1 (27) connects charging module (24), and the pressure includes pressure and temperature sensor with temperature sensor module (21)
S1, the pressure is connected controller, the top with temperature sensor S1 CSB ports, SDA ports, SCL ports, INT1 ports
Spiral shell instrument and acceleration sensor module (22) include gyroscope and acceleration transducer U2, resistance R23, resistance R24, resistance R25,
Resistance R26, resistance R27, electric capacity C26, electric capacity C28, electric capacity C29, NPN triode Q5, the gyroscope and acceleration transducer
U2 CPOUT ports are by electric capacity C26 connection earth signal GND, SCL port of the gyroscope with acceleration transducer U2, SDA
Port connects controller, and the gyroscope and acceleration transducer U2 SCL ports are connected power supply VMCU, institute by resistance R26
State gyroscope and power supply VMCU is connected by resistance R27 with acceleration transducer U2 SDA ports, the gyroscope is passed with acceleration
Sensor U2 INT ports pass through resistance by resistance R24 connection NPN triodes Q5 base stage, the base stage of the NPN triode Q5
R25 connection earth signals GND, the NPN triode Q5 emitter stage connection earth signal GND, the colelctor electrode of the NPN triode Q5
Controller is connected, the colelctor electrode of the NPN triode Q5 is also connected with power supply VMCU, and the charging module (24) includes charging chip
U3, electric capacity C32, electric capacity C34, resistance R36, charger G1, the charging chip U3 VCC ports connection charger G1, it is described
Charging chip U3 VCC ports also pass through electric capacity C32 connection earth signals GND, the GND ports connection ground letter of the charging chip U3
Number GND, the charging chip U3 CHRG ports, PROG ports all connect controller, and the BAT ports of the charging chip U3 lead to
Electric capacity C34 connection earth signals GND, the charging chip U3 PROG ports are crossed by resistance R36 connection earth signals GND, it is described
Charging chip U3 BAT ports include resistance by battery BT1 connection earth signals GND, the battery voltage monitoring module (26)
R42, resistance R44, the resistance R42 one end connection charging chip U3 BAT ports, the other end of the resistance R42 pass through
Resistance R44 connection earth signals GND, the resistance R42 other end connection controller.
2. intelligent vacuum Fresh-keeping mess tin according to claim 1, it is characterised in that the Voltage stabilizing module (25) includes voltage stabilizing core
Piece U5, electric capacity C35, electric capacity C36, electric capacity C39, the voltage stabilizing chip U5 IN ports connection charging chip U3 BAT ports, institute
Voltage stabilizing chip U5 IN ports are stated also by electric capacity C39 connection earth signals GND, the GND ports connection ground of the voltage stabilizing chip U5
Signal GND, the power supply VMCU connection voltage stabilizing chips U5 OUT terminal mouthful, the OUT terminal mouthful of the voltage stabilizing chip U5 also pass through electric capacity
C35 connection earth signals GND, the electric capacity C35 is in parallel with electric capacity C36.
3. the control method of intelligent vacuum Fresh-keeping mess tin, it is characterised in that including step in detail below：
(1), controller is initialized；
(2), controller detects battery BT1 electricity by battery voltage monitoring module, judges whether abundance, if battery BT1
Electricity is sufficient, then carries out step (3), and otherwise charging module charges to battery BT1；
(3), controller judges whether lunch box body covers lid by pressure and temperature sensor module, if on lunch box body cap
Lid, then carry out step (4), otherwise jump procedure (2)；
(4), controller judges whether lunch box is in horizontality by gyroscope and acceleration sensor module, if lunch box is in
Horizontality, then carry out step (5), otherwise adjusts the state of lunch box, until lunch box in horizontality carries out step (5) again；
(5), controller control takes out deflation structure and carries out pumping work；
(6), controller detects battery BT1 electricity by battery voltage monitoring module, judges whether abundance, if battery BT1
Electricity is sufficient, then carries out step (7), and otherwise controller control takes out deflation structure and carries out deflation operations, and charging module is to battery BT1
Charged；
(7), controller detects whether lid is rotated by gyroscope and acceleration sensor module, if lid is revolved
Turn, then controller control takes out deflation structure and carries out deflation operations, then carries out step (2), otherwise jump procedure (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610115568.7A CN105540056B (en) | 2016-03-01 | 2016-03-01 | Intelligent vacuum Fresh-keeping mess tin and its control method |
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|---|---|---|---|
| CN201610115568.7A CN105540056B (en) | 2016-03-01 | 2016-03-01 | Intelligent vacuum Fresh-keeping mess tin and its control method |
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| Publication Number | Publication Date |
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| CN105540056A CN105540056A (en) | 2016-05-04 |
| CN105540056B true CN105540056B (en) | 2017-08-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205708101U (en) * | 2016-03-01 | 2016-11-23 | 杭州糖球科技有限公司 | Intelligent vacuum Fresh-keeping mess tin |
| CN106473409A (en) * | 2016-11-15 | 2017-03-08 | 徐州赛欧电子科技有限公司 | A kind of three axle parcel trays and its control method |
| CN108688971A (en) * | 2018-08-03 | 2018-10-23 | 丫互科技（深圳）有限公司 | A kind of intelligent vacuum storage tank |
| CN109896163B (en) * | 2018-11-19 | 2023-12-12 | 江苏百思福科技股份有限公司 | Automatic air-extracting sealing box cover and working method thereof |
| CN109760951A (en) * | 2019-01-16 | 2019-05-17 | 苏州通乐莱富精密制造科技有限公司 | A kind of vacuum crisper |
| CN110733801A (en) * | 2019-11-27 | 2020-01-31 | 利辛县雨若信息科技有限公司 | automatic ventilating dustbin |
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| CN202265056U (en) * | 2011-09-15 | 2012-06-06 | 宁波东塑塑业有限公司 | Double buckle-type vacuum fresh-keeping box |
| CN203345433U (en) * | 2013-06-21 | 2013-12-18 | 苏州盟通利机电设备有限公司 | Full-automatic vacuum preservation box |
| CN104555110A (en) * | 2013-10-23 | 2015-04-29 | 谢国金 | Vacuum freshness-preservation container |
| CN103868512A (en) * | 2014-03-25 | 2014-06-18 | 西安电子科技大学 | High-precision aircraft heading and attitude test circuit |
| CN104986448A (en) * | 2015-05-27 | 2015-10-21 | 严世钊 | Vacuum-pumping apparatus for storage jar and method for keeping food fresh for a long time using storage jar |
| CN204999029U (en) * | 2015-10-08 | 2016-01-27 | 熊华夏 | Vacuum preservation box |
| CN205708101U (en) * | 2016-03-01 | 2016-11-23 | 杭州糖球科技有限公司 | Intelligent vacuum Fresh-keeping mess tin |
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