CN110316455B - Air-conditioning fresh-keeping box capable of being nested - Google Patents
Air-conditioning fresh-keeping box capable of being nested Download PDFInfo
- Publication number
- CN110316455B CN110316455B CN201910623136.0A CN201910623136A CN110316455B CN 110316455 B CN110316455 B CN 110316455B CN 201910623136 A CN201910623136 A CN 201910623136A CN 110316455 B CN110316455 B CN 110316455B
- Authority
- CN
- China
- Prior art keywords
- box body
- box
- air
- ventilation
- holes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 22
- 238000009423 ventilation Methods 0.000 claims abstract description 40
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 4
- 238000004320 controlled atmosphere Methods 0.000 claims 5
- 239000003755 preservative agent Substances 0.000 claims 2
- 230000002335 preservative effect Effects 0.000 claims 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 238000003825 pressing Methods 0.000 description 11
- 238000001914 filtration Methods 0.000 description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 235000013399 edible fruits Nutrition 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- -1 polysiloxane Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- 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
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/20—Details of walls made of plastics material
- B65D11/22—Reinforcing for strengthening parts of members
-
- 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
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
-
- 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
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/263—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for ventilating the contents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Packages (AREA)
Abstract
The invention discloses a telescopic air-conditioning fresh-keeping box, which mainly solves the problems of overhigh cost and large occupied space of the existing fresh-keeping box, and comprises a box cover and a box body, wherein the box cover is of a cuboid structure, and a plurality of concave seats which are inwards concave are arranged on the upper top surface of the box cover; the box body comprises an upper box body, a lower box body and a box body inner cavity, and the upper box body is provided with reinforcing ribs; the upper box body is provided with first ventilation holes on two opposite sides, ventilation fixing bars are arranged outside the first ventilation holes, and fixing press heads are arranged between the second ventilation holes; the side length of each side of the top surface of the lower box body is 50-100 m longer than that of each side of the bottom surface of the upper box body; the invention reduces the cost of fresh transportation industry, ensures the stability of the telescopic fresh-keeping box by combining concave and convex, saves space, is convenient to transport, and saves space for storing the box when the fresh-keeping box is not used.
Description
Technical Field
The invention relates to an air-conditioning fresh-keeping box, in particular to a telescopic air-conditioning fresh-keeping box, which belongs to the field of air-conditioning fresh-keeping.
Background
The air-conditioning fresh-keeping box is used for exchanging air inside and outside the fresh-keeping box, so that oxygen and carbon dioxide in the fresh-keeping box are maintained at proper levels, and the aim of fresh-keeping of fruits at normal temperature is fulfilled. In order to realize the gas exchange between the inside and the outside of the fresh-keeping box, the conventional means are to use a circulating fan to blow, set a condensing pipe to keep the fruits at a low temperature, set a nitrogen conveying system in the fresh-keeping box, and the like.
The silicon window filtering membrane is a thermal curing adhesive film which is prepared by coating hydrogen-containing siloxane and vinyl polysiloxane on a cloth substrate under the catalysis of a platinum complex, and has different transmission amounts of oxygen and carbon dioxide, and the transmission amount of the oxygen is lower than that of the carbon dioxide by about 1/6 of that of the carbon dioxide under the same pressure condition, and the silicon window filtering membrane can realize relatively stable gas composition by utilizing the good transmission bit property of the silicon window filtering membrane to the oxygen and the carbon dioxide, namely, the self respiration of fruits and vegetables and the gas regulating function of the silicon window filtering membrane are utilized to discharge the carbon dioxide and supplement the consumed oxygen, so that the permeation speed is equal to the respiration speed of fruits.
The microporous film is made of polytetrafluoroethylene through puffing and stretching, and has small pore size, homogeneous distribution and high porosity, and may be used in filtering dust particles including bacteria while maintaining ventilation.
Because the existing air-conditioning fresh-keeping box has the problems of high cost and large occupied space in the transportation process, a telescopic air-conditioning fresh-keeping box is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the telescopic air-conditioning fresh-keeping box, which mainly realizes fresh keeping of vegetables and fruits through a silicon window filtering film and a microporous film, and the concave-convex combination of the box cover and the base can realize the telescopic of the air-conditioning fresh-keeping box.
The technical scheme for solving the technical problems is as follows: the telescopic air-conditioning fresh-keeping box comprises a box cover and a box body, wherein the box cover is of a cuboid structure, and a plurality of concave seats which are concave inwards are arranged on the upper top surface of the box cover; the box body comprises an upper box body, a lower box body and a box body inner cavity, wherein the upper box body is provided with reinforcing ribs which are square grid structures; the upper box body is provided with two opposite side surfaces with first air holes, each side surface is provided with two groups of first air holes, each group of first air holes is provided with two rows of pressing holes, a ventilation fixing fence is arranged outside the first air holes, the ventilation fixing fence is of a cuboid structure with an opening on the top surface, two rows of second air holes are arranged on the bottom surface of the ventilation fixing fence, a fixing pressing head is arranged between the two rows of second air holes, when a silicon window filtering film or a microporous film is coated on the first air holes, the fixing pressing head can be pressed into the pressing holes to fix the ventilation fixing fence, and two corresponding fixing holes are arranged on a reinforcing rib on the side surface of the box body with the air holes; the side length of each side of the top surface of the lower box body is 50-100 m longer than that of each side of the bottom surface of the upper box body; the inner cavity of the box body is of a straight-through structure; the bottom of the lower box body is provided with a plurality of bases, and the bases and the lower box body are of an integrated structure; the box cover is characterized in that a snap fastener is arranged between the box cover and the box body, the box cover is connected with the box body through the snap fastener, the snap fastener is of a semicircular arc structure, fixing columns are arranged on two sides of the snap fastener and are matched with the fixing holes, and the fixing columns can be pressed into the fixing holes to be fixed.
Further, the outer shape length of the air-conditioning fresh-keeping box is 613 mm, the width is 406 mm, and the height is 333 mm; the outline length of the case cover is 606 mm, the width is 406 mm, and the height is 13.5 mm; the box body has an external shape length of 600 mm, a width of 400 mm and a height of 320 mm.
Further, two groups of first air holes are formed in each side face, and each group of first air holes is arranged in two rows.
Further, the position of the second vent hole corresponds to the position of the first vent hole, and the position of the concave seat corresponds to the position of the base.
Further, the case cover and the case body are of an integrated structure, and the base and the lower case body are of an integrated structure.
Further, the materials of the case cover and the case body are PP and PE polystyrene plastics.
Compared with the prior art, the invention has the beneficial effects that: a telescopic air-conditioning fresh-keeping box is characterized in that a silicon window film or a microporous film is fixed on a box body through a first ventilation hole and a ventilation fixing rail, so that air inside and outside the fresh-keeping box is exchanged, the freshness of vegetables and fruits is ensured, and compared with the existing fresh transportation, the cost of the fresh transportation industry is greatly reduced; the concave seat arranged on the case cover and the convex base arranged on the case body can realize the nesting of the air-conditioning fresh-keeping case, and the concave-convex combination can ensure the stability of the nesting fresh-keeping case, save space and facilitate transportation; when the fresh-keeping box is not used, the difference between the size of the upper box body and the size of the lower box body can realize the mutual sleeving of the box bodies, so that the storage space of the box bodies is saved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of a side of the case with the first ventilation holes according to the present invention.
Fig. 3 is a schematic diagram of the inner cavity structure of the box body of the invention.
Fig. 4 is a schematic view of a base structure of the present invention.
Fig. 5 is a schematic view of the snap fastener structure of the present invention.
FIG. 6 is a schematic view of a ventilation fixing rail according to the present invention.
FIG. 7 is an enlarged view of the snap fastener of the present invention.
Figure 8 is a schematic view of the overall nesting structure of the present invention.
Figure 9 is a schematic view of the telescopic structure of the case of the present invention.
In the figure, 1, a box cover; 2. a concave seat; 3. a snap fastener; 4. an upper case; 5. a lower case; 6. a base; 7. reinforcing ribs; 8. a first ventilation hole; 9. a fixing hole; 10. fixing the column; 11. a ventilation fixed rail; 12. a second ventilation hole; 13. fixing the pressing head; 14. a box body inner cavity; 15. a button hole; 16. a box body.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in the figure, the telescopic air-conditioning fresh-keeping box comprises a box cover 1 and a box body 2, wherein the outer shape length of the air-conditioning fresh-keeping box is 613 mm, the width is 406 mm, the height is 333 mm, the box cover 1 is of a cuboid structure, a plurality of concave seats 2 which are concave inwards are arranged on the upper top surface of the box cover 1, the outer shape length of the box cover 1 is 606 mm, the width is 406 mm, and the height is 13.5 mm; the box 16 comprises an upper box 4, a lower box 5 and a box inner cavity 14, the box 16 has the appearance length of 600 mm, the width of 400 mm and the height of 320 mm, the upper box 4 is provided with reinforcing ribs 7, and the reinforcing ribs 7 are in a square lattice structure; the upper box body 4 is provided with first ventilation holes 8 on two opposite side surfaces, each side surface is provided with two groups of first ventilation holes 8, each group of first ventilation holes 8 is provided with two rows of pressing holes 15, the outside of each first ventilation hole 8 is provided with a ventilation fixing fence 11, each ventilation fixing fence 11 is of a cuboid structure with an open top surface, the bottom surface of each ventilation fixing fence 11 is provided with two rows of second ventilation holes 12, a fixing pressing head 13 is arranged between the two rows of second ventilation holes 12, the positions of the second ventilation holes 12 correspond to the positions of the first ventilation holes 8, when a silicon window filtering membrane or a microporous membrane is covered on the first ventilation holes 8, the fixing pressing heads 13 can be pressed into the pressing holes 15 to fix the ventilation fixing fences 11, and the reinforcing ribs 7 on the side surface of the box body 16 with the first ventilation holes 8 are provided with two corresponding fixing holes 9; the side length of each side of the top surface of the lower box body 5 is 50-100 m inwards than the side length of each side of the bottom surface of the upper box body 4; the inner cavity 14 of the box body is of a straight-through structure; the bottom of the lower box body 5 is provided with a plurality of bases 6, the bases 6 and the lower box body 5 are of an integrated structure, and the positions of the concave seats 2 correspond to the positions of the bases 6; a snap fastener 3 is arranged between the case cover 1 and the case body 16, the snap fastener 3 connects the case cover 1 and the case body 16 together, the snap fastener 3 is of a semicircular arc structure, fixing columns 10 are arranged on two sides of the snap fastener 3, the fixing columns 10 are matched with the fixing holes 9 for use, and the fixing columns 10 can be pressed into the fixing holes 9 to realize fixation; the case cover 1 and the case body 16 are of an integrated structure; the materials of the case cover 1 and the case body 16 are PP and PE polystyrene plastics.
When the air-conditioning fresh-keeping box is used, a silicon window filtering film or a microporous film is covered on the first air holes 8, a fixed pressing head 13 on the air-permeable fixed rail 11 is pressed into a pressing head hole 15 to fix the air-permeable fixed rail 11, the box cover 1 is covered on the upper part of the box body 16, a fixed column 10 on the snap fastener 3 is arranged in the fixed hole 9, and the other end of the snap fastener 3 is buckled in a concave seat 2 of the box cover 1 to seal the box body 16; in the transportation process, the base 6 can be placed in the corresponding concave seat 2, so that the stability is ensured, and the space is saved.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The telescopic air-conditioning fresh-keeping box comprises a box cover and a box body and is characterized in that the box cover is of a cuboid structure, and a plurality of concave seats which are concave inwards are arranged on the upper top surface of the box cover; the box body comprises an upper box body, a lower box body and a box body inner cavity, wherein the upper box body is provided with reinforcing ribs which are square grid structures; the upper box body is provided with first ventilation holes on two opposite side surfaces, a button hole is arranged between the first ventilation holes, a ventilation fixed column is arranged outside the first ventilation holes, the ventilation fixed column is of a cuboid structure with an opening on the top surface, two rows of second ventilation holes are arranged on the bottom surface of the ventilation fixed column, a fixed button is arranged between the two rows of second ventilation holes, the fixed button can be pressed into the button hole, the ventilation fixed column is fixed, and two corresponding fixed holes are arranged on the reinforcing ribs on the side surface of the box body with the ventilation holes; the side length of each side of the top surface of the lower box body is 50-100 m longer than that of each side of the bottom surface of the upper box body; the inner cavity of the box body is of a straight-through structure; the bottom of the lower box body is provided with a plurality of bases; a snap fastener is arranged between the box cover and the box body, the box cover is connected with the box body through the snap fastener, the snap fastener is of a semicircular arc structure, fixing columns are arranged on two sides of the snap fastener, and the fixing columns are matched with the fixing holes for use.
2. The nestable controlled atmosphere fresh container of claim 1, wherein: the outer shape length of the air-conditioning fresh-keeping box is 613 mm, the width is 406 mm, and the height is 333 mm; the outline length of the case cover is 606 mm, the width is 406 mm, and the height is 13.5 mm; the box body has an external shape length of 600 mm, a width of 400 mm and a height of 320 mm.
3. The nestable controlled atmosphere fresh container of claim 1, wherein: two groups of first air holes are arranged on each side face, and each group of first air holes is arranged in two rows.
4. The nestable controlled atmosphere fresh container of claim 1, wherein: the position of the second air hole corresponds to the position of the first air hole, and the position of the concave seat corresponds to the position of the base.
5. The nestable controlled atmosphere fresh container of claim 1, wherein: the case cover and the case body are of an integrated structure, and the base and the lower case body are of an integrated structure.
6. The nestable controlled atmosphere fresh box of claim 1The method is characterized in that: air-conditioning preservative film embedded in air holes with area of 0.02-0.08m 2 The method comprises the steps of carrying out a first treatment on the surface of the The air-conditioning preservative film is any one of a silicon window film and a microporous film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623136.0A CN110316455B (en) | 2019-07-11 | 2019-07-11 | Air-conditioning fresh-keeping box capable of being nested |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623136.0A CN110316455B (en) | 2019-07-11 | 2019-07-11 | Air-conditioning fresh-keeping box capable of being nested |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110316455A CN110316455A (en) | 2019-10-11 |
| CN110316455B true CN110316455B (en) | 2024-04-16 |
Family
ID=68121907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910623136.0A Active CN110316455B (en) | 2019-07-11 | 2019-07-11 | Air-conditioning fresh-keeping box capable of being nested |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110316455B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19641686A1 (en) * | 1996-10-10 | 1998-04-23 | Volkswagen Ag | Stackable storage and transport container |
| CN104724400A (en) * | 2015-04-09 | 2015-06-24 | 国家农产品保鲜工程技术研究中心（天津） | Portable multifunctional gas regulating and controlling preservative box for fruit and vegetable storage and transportation microenvironment |
| CN205470751U (en) * | 2016-01-11 | 2016-08-17 | 余汉强 | A leaf class vegetables transport case that keeps fresh for long -distance transport |
| CN210175400U (en) * | 2019-07-11 | 2020-03-24 | 北京顶晖机械设备有限公司 | Nestable air-conditioning fresh-keeping box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009033108A1 (en) * | 2008-12-06 | 2011-02-03 | Fritz Schäfer GmbH | Device for unlocking swing-action side walls of boxes or containers, has unlocking crosspieces that act on spring-tongue-like locking element of side walls |
-
2019
- 2019-07-11 CN CN201910623136.0A patent/CN110316455B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19641686A1 (en) * | 1996-10-10 | 1998-04-23 | Volkswagen Ag | Stackable storage and transport container |
| CN104724400A (en) * | 2015-04-09 | 2015-06-24 | 国家农产品保鲜工程技术研究中心（天津） | Portable multifunctional gas regulating and controlling preservative box for fruit and vegetable storage and transportation microenvironment |
| CN205470751U (en) * | 2016-01-11 | 2016-08-17 | 余汉强 | A leaf class vegetables transport case that keeps fresh for long -distance transport |
| CN210175400U (en) * | 2019-07-11 | 2020-03-24 | 北京顶晖机械设备有限公司 | Nestable air-conditioning fresh-keeping box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110316455A (en) | 2019-10-11 |
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