CN111483696A - Lunch box and air exhaust device - Google Patents
Lunch box and air exhaust device Download PDFInfo
- Publication number
- CN111483696A CN111483696A CN202010171409.5A CN202010171409A CN111483696A CN 111483696 A CN111483696 A CN 111483696A CN 202010171409 A CN202010171409 A CN 202010171409A CN 111483696 A CN111483696 A CN 111483696A
- Authority
- CN
- China
- Prior art keywords
- air
- lunch box
- piston
- cavity
- exhaust
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 65
- 238000005086 pumping Methods 0.000 claims abstract description 25
- 238000000605 extraction Methods 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
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
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
-
- 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
- B65D51/00—Closures not otherwise provided for
- B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
-
- 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
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/02—Collars or rings
-
- 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
- B65D81/2038—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 with means for establishing or improving vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The invention belongs to the technical field of articles for daily use, and particularly relates to a lunch box and an air extractor, wherein the lunch box comprises: the lunch box comprises a lunch box body and a lunch box cover, wherein the lunch box body comprises a shell and the lunch box cover; the lunch box cover is arranged on the shell, an air exhaust cavity is arranged on the lunch box cover, and an air exhaust opening communicated with the interior of the lunch box body is formed in the air exhaust cavity; the air extracting device is arranged on the lunch box cover and comprises a piston, a first sealing component and a second sealing component; the piston is movably arranged in the air pumping cavity and is in sealing fit with the inner wall of the air pumping cavity, and an air exhaust port communicated with the outside is arranged on the piston; the first sealing assembly and the second sealing assembly are respectively arranged at the air suction opening and the air exhaust opening, so that the air suction opening is opened and the air exhaust opening is closed when the piston moves to suck air, and the air exhaust opening is opened and the air suction opening is closed when the piston moves to exhaust air. According to the lunch box provided by the embodiment of the invention, the air in the lunch box is pumped out through the arranged air pumping device, and the lunch box and the air pumping device are integrally arranged, so that air can be pumped at any time and any place, and the flexibility of air pumping of the lunch box is improved.
Description
Technical Field
The invention belongs to the technical field of articles for daily use, and particularly relates to a lunch box and an air extractor.
Background
The lunch box is mainly used for containing food, and along with the development of the times, the function of lunch box is more and more, and traditional fresh-keeping lunch box is equipped with box body and lid usually, and it seals the box body with the air of separation box body inside and outside through the lid to reach fresh-keeping purpose.
However, although the air inside and outside the box body of the traditional fresh-keeping lunch box is not communicated with each other, the air is stored in the box body, and oxygen in the air has an oxidizing effect on food in the box body, so that the fresh keeping of the food is influenced, and the fresh-keeping time is limited. Some vacuum preservation lunch boxes also appear in the market at present, need supporting evacuation equipment (like the air pump) to accomplish the step of evacuation when using, evacuation equipment all brings a lot of inconveniences in using and carrying, and when evacuation equipment damaged, then lead to the preservation lunch box can not accomplish the evacuation step, lead to the preservation lunch box can not play the fresh-keeping effect.
Therefore, air exhaust of the lunch box in the prior art needs to be carried out by means of external equipment, and the air exhaust operation is troublesome.
Disclosure of Invention
The embodiment of the invention aims to provide a lunch box, and aims to solve the problem that air is not conveniently extracted in the lunch box in the prior art.
The embodiment of the invention is realized in such a way that the lunch box comprises:
the lunch box comprises a lunch box body, a lunch box cover and a lunch box cover, wherein the lunch box body comprises a shell and the lunch box cover; the lunch box cover is detachably arranged on the shell, an air suction cavity is arranged on the lunch box cover, and an air suction opening communicated with the inside of the lunch box body is formed in the air suction cavity; and
the air extracting device is arranged on the lunch box cover and comprises a piston, a first sealing assembly and a second sealing assembly; the piston is movably arranged in the air pumping cavity and is in sealing fit with the inner wall of the air pumping cavity, and an air outlet communicated with the outside is formed in the piston; the first sealing assembly and the second sealing assembly are respectively arranged at the air suction opening and the air exhaust opening, so that the air suction opening is opened and the air exhaust opening is closed when the piston moves to suck air, and the air exhaust opening is opened and the air suction opening is closed when the piston moves to exhaust air.
Preferably, a locking mechanism is arranged between the piston and the lunch box body and used for locking the piston to move in the air pumping cavity so that the second sealing assembly closes the air pumping opening.
Preferably, the locking mechanism comprises a locking groove formed in the inner wall of the air exhaust cavity and a locking block arranged on the piston, and the locking block can be inserted into the locking groove along with the rotation of the piston to form locking.
Preferably, the first seal assembly comprises:
a first seal movably disposed at the exhaust port;
the first sealing piece is arranged between the piston and the pressing cover, and is used for setting the first sealing piece so that the first sealing piece can movably open or close the communication between the vent groove and the vent hole.
Preferably, the second seal assembly comprises:
a second seal movably disposed at the suction port;
the limiting piece is arranged in the air exhaust cavity and used for limiting the moving distance of the second sealing piece; and
the pushing piece is arranged between the piston and the second sealing piece, and the pushing piece can push the second sealing piece to seal the air suction port under the driving of the piston.
Preferably, a driving part is arranged on the piston and used for pushing the pushing part to move, and a channel for communicating the exhaust port with the air pumping cavity is arranged on the driving part.
Preferably, a return elastic piece is arranged between the piston and the air suction cavity.
Preferably, the inside storage chamber that is equipped with of lunch-box body, it can dismantle in the storage chamber and be provided with at least one interior box, interior box includes interior lid and interior box shell, interior lid can be dismantled the setting and be in on the interior box shell, be equipped with the gas pocket on the interior lid, the gas pocket can be dismantled and be provided with exhaust silica gel cap.
Preferably, the lunch box body is provided with a pressure relief device for balancing the pressure difference between the inside of the lunch box body and the outside.
Preferably, a tableware placing cavity is formed in the lunch box cover, and a cover plate is rotatably arranged on the tableware placing cavity.
It is another object of an embodiment of the present invention to provide a gas extraction apparatus, including:
the device comprises a device body, wherein an air exhaust cavity is arranged on the device body, and an air exhaust opening is formed in the air exhaust cavity;
the piston is movably arranged in the air pumping cavity and is in sealing fit with the inner wall of the air pumping cavity, and an air outlet communicated with the outside is formed in the piston;
the first sealing assembly and the second sealing assembly are respectively arranged at the air suction opening and the air exhaust opening, so that the air suction opening is opened and the air exhaust opening is closed when the piston moves to suck air, and the air exhaust opening is opened and the air suction opening is closed when the piston moves to exhaust air.
According to the lunch box provided by the embodiment of the invention, the air extraction device is arranged on the lunch box, the air extraction opening and the air exhaust opening are continuously and alternately opened and closed by pushing and pulling the movable piston, so that air in the lunch box is extracted, the operation is simple, the lunch box and the air extraction device are integrally arranged, air can be extracted at any time and any place, and the flexibility of air extraction of the lunch box is improved.
Drawings
FIG. 1 is a perspective view of a lunch box according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of a lunch box according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view illustrating a venting state of a lunch box according to an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view illustrating a state of exhausting air from the lunch box according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a pressing cover of a lunch box according to an embodiment of the invention;
FIG. 6 is a view showing a structure of a lid portion of a lunch box according to an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion A of FIG. 6 according to an embodiment of the present invention;
fig. 8 is an exploded view of an inner box of the lunch box according to the embodiment of the invention;
FIG. 9 is a schematic structural view illustrating an opened state of a dish placing chamber of the lunch box according to the embodiment of the present invention;
FIG. 10 is a schematic structural diagram of an air extractor according to an embodiment of the present invention.
In the drawings: 1. a lunch box body; 2. a housing; 3. a lunch box cover; 31. an air pumping cavity; 311. a limiting sleeve; 312. a limiting bump; 32. an air extraction opening; 4. an air extraction device; 41. a piston; 411. a drive member; 412. a locking block; 42. a first seal assembly; 421. a first seal member; 422. pressing the cover; 423. a vent channel; 424. mounting grooves; 43. a second seal assembly; 431. a second seal member; 432. a limiting member; 433. a pusher member; 44. an exhaust port; 45. a restoring elastic member; 5. a locking mechanism; 6. an inner case; 61. an inner box handle; 62. an exhaust silica gel cap; 63. an inner box cover; 64. an inner box sealing ring; 65. the inner container of the inner box; 66. an inner box thread ring; 67. an inner case outer shell; 7. a pressure relief device; 8. a tableware placing cavity; 9. a cover plate; 10. a handle of the lunch box; 11. a device body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example one
As shown in fig. 1 to 3, wherein fig. 1 is a three-dimensional structure diagram of a lunch box provided in an embodiment of the present invention, fig. 2 is an exploded view of a three-dimensional structure of a lunch box provided in an embodiment of the present invention, and fig. 3 is a schematic cross-sectional structure diagram of a lunch box in an exhaust state provided in an embodiment of the present invention, a lunch box includes:
the lunch box comprises a lunch box body 1, a lunch box cover and a lunch box cover, wherein the lunch box body comprises a shell 2 and the lunch box cover 3; the lunch box cover 3 is detachably arranged on the shell, the lunch box cover 3 is provided with an air suction cavity 31, and the air suction cavity 31 is provided with an air suction port 32 communicated with the interior of the lunch box body; and
the air extracting device 4 is arranged on the lunch box cover 3, and the air extracting device 4 comprises a piston 41, a first sealing component 42 and a second sealing component 43; the piston is movably arranged in the air pumping cavity and is in sealing fit with the inner wall of the air pumping cavity, and an air outlet 44 communicated with the outside is arranged on the piston 41; the first seal assembly 42 and the second seal assembly 43 are provided at the suction port 32 and the exhaust port 44, respectively, so that the piston 41 opens the suction port 32 and closes the exhaust port 44 when moving suction, and the piston 41 opens the exhaust port 44 and closes the suction port 32 when moving exhaust.
In the embodiment of the invention, the lunch box body can be formed by screwing the lunch box cover detachably and tightly or screwing the lunch box cover in a clamping groove and clamping block matching manner, and the detachable mode of the lunch box cover in the technical field can be simply changed according to actual needs and used in the lunch box described in the embodiment of the invention, and is not described one by one here.
In the embodiment of the invention, in order to ensure the effective volume of the air suction cavity, the piston 41 is specially designed to be concave, and the concave cavity of the piston 41 and the concave cavity on the lunch box cover 3 form a complete air suction cavity. It will be understood that in other embodiments of the present invention, a simple piston may be selected for practical purposes, mainly to achieve the functions and purposes required by the embodiments of the present invention, and the piston is not shown as a strictly limiting example.
According to the lunch box provided by the embodiment of the invention, the air extraction device is arranged on the lunch box, the air extraction opening and the air exhaust opening are continuously and alternately opened and closed by pushing and pulling the movable piston, so that air in the lunch box is extracted, the operation is simple, the lunch box and the air extraction device are integrally arranged, air can be extracted at any time and any place, and the flexibility of air extraction of the lunch box is improved.
In an embodiment of the present invention, as shown in fig. 3 to 5, wherein fig. 4 is a schematic cross-sectional structure diagram of a state when the lunch box provided in the embodiment of the present invention is evacuated, fig. 5 is a schematic structural diagram of the pressing cover provided in the embodiment of the present invention, the first sealing assembly 42 includes:
a first sealing member 421, the first sealing member 421 being movably disposed at the exhaust port 44;
the pressing cover 422 is arranged on the piston 41, the pressing cover 422 is provided with a vent groove 423, the vent groove 423 is communicated with the exhaust port 44, and an installation groove 424 is formed between the pressing cover 422 and the piston 41 and is used for arranging a first sealing member 421, so that the first sealing member 421 can move to open or close the communication between the vent groove 423 and the exhaust port 44.
In the present embodiment, the second seal assembly 43 includes:
a second seal 431, the second seal 431 being movably provided at the suction port 32;
a limiting member 432, wherein the limiting member 432 is arranged in the air extracting cavity 31 and used for limiting the moving distance of the second sealing member 431; the stopper 432 is only a member for restricting the movement of the second sealing member 431, and does not form a seal, and gas can enter the pumping chamber 31 through the stopper 432, and the stopper 432 may be a frame structure or a cylindrical structure, and a communication hole is provided in the cylindrical stopper to allow the gas to flow therethrough.
The pushing member 433 is arranged between the piston 41 and the second sealing member 431, and the pushing member 433 can push the second sealing member 431 to block the air suction port under the driving of the piston 41.
Specifically, as shown in fig. 3 to 4, a mounting hole is formed in the middle of the limiting member 432, the pushing member 433 is disposed in the mounting hole, and a shoulder structure for limiting the moving distance of the pushing member is further disposed on the limiting member, so that the moving range of the pushing member is limited, and the pushing member, the limiting member, and the second sealing member are prevented from being jammed in a staggered manner.
In the embodiment of the present invention, as shown in fig. 3 to 4, a driving member 411 is disposed on the piston 41 for pushing the pushing member 433 to move, and a passage is disposed on the driving member 411 for communicating the exhaust port 44 and the pumping cavity 31. In the embodiment of the present invention, the driving member 411 and the piston 41 are integrally manufactured, and in other embodiments of the present invention, the driving member and the piston may be detachably disposed, so as to achieve the functions described in the embodiment of the present invention; meanwhile, as shown in fig. 3 to 4, the contact portion between the driving member 411 and the pushing member 433 is a saw-tooth shape, which may be a regular saw-tooth or an irregular saw-tooth, so that air can flow out from the channel on the driving member 411.
In the embodiment of the present invention, the pressing cap 422 is pulled to push the piston to move, so as to achieve the action of air suction and air exhaust, and as shown in fig. 3 to 4, a return elastic element 45 is further disposed between the piston 41 and the air suction cavity 31, the return elastic element may be a return spring, specifically a conical return spring, one end of the return elastic element 45 abuts against the pressing cap, and the other end abuts against the limiting element. When the elastic resetting piece 45 jacks up the piston in a normal state, in use and during air exhaust, the pressing cover 422 is pressed to drive the piston 41 to move downwards to compress the elastic resetting piece 45, meanwhile, the piston 41 compresses air in the air exhaust cavity in the downward movement process, the air acts on the second sealing piece 431, the second sealing piece 431 can seal the air exhaust opening to prevent air from flowing back into the lunch box body, and when the piston 41 compresses air in the air exhaust cavity, the air pressure in the air exhaust cavity is increased to extrude the first sealing piece 421 in the mounting groove 424 to move upwards, so that the first sealing piece 421 does not block the vent groove 423 and the exhaust opening 44 any more, the air in the air exhaust cavity flows out from the exhaust opening 44 through the vent groove to realize air exhaust, in addition, the downward movement of the piston 41 also jacks up the pushing piece 433 through the driving piece 411 to push the pushing piece 433 to press the second sealing piece 431, further ensuring that the second seal 431 can seal the pumping port 32; when air is extracted, the pressing cover 422 is pulled upwards or the reset action of the reset elastic piece 45 is utilized to drive the piston 41 to move upwards, meanwhile, the internal space of the air extraction cavity is increased in the upward movement process of the piston 41, so that the air pressure in the air extraction cavity is reduced, the external air pressure presses the first sealing piece to the air outlet on the piston under the condition that the external air pressure is not changed, the air outlet is sealed, the external air of the lunch box cannot enter the air extraction cavity, and because the air pressure in the lunch box body is greater than the air pressure in the air extraction cavity, the air in the lunch box acts on the second sealing piece 431, at the moment, because the piston moves upwards, the driving piece 411 is separated from the pushing piece 433, so that the second sealing piece is not pressed, the second sealing piece 431 is jacked up by the air in the lunch box body 1, so that the air extraction; the process is repeated to continuously exhaust and exhaust, so that the gas in the lunch box can be pumped out as required.
In the embodiment of the invention, a locking mechanism is arranged between the piston 41 and the lunch box body 1, and the locking mechanism 5 is used for locking the movement of the piston in the air extracting cavity so that the second sealing assembly 43 closes the air extracting opening. Specifically, in the embodiment of the present invention, the locking mechanism includes a locking groove formed in the inner wall of the pumping cavity 31 and a locking block 412 disposed on the piston 41, and the locking block 412 can be inserted into the locking groove to form a locking structure along with the rotation of the piston 41. As shown in fig. 3 to 7, fig. 6 is a partial structural view of a cover portion of a lunch box provided in an embodiment of the present invention, fig. 7 is a partial enlarged view of a portion a in fig. 6, a locking groove is formed by a limiting sleeve 311 on an inner wall of an air extraction cavity 31 and a bottom of the air extraction cavity 31, the limiting sleeve 311 is disposed on the inner wall of the air extraction cavity 31 in a clamping and fixing manner, a limiting protrusion 312 is disposed on the limiting sleeve 311, and in other embodiments of the present invention, the locking function of the limiting protrusion 312 can also be directly realized by forming a locking groove on an inner portion thereof. When the locking mechanism in the embodiment of the present invention is used specifically, the pressing cover 422 is pressed, so that the piston 41 abuts against the pushing member 433 through the driving member 411, so that the pushing member 433 presses the second sealing member 431, then the piston 41 is rotated, so that the locking block 412 on the piston 41 is inserted below the limiting projection 312, and the piston is locked and fixed through the locking groove formed at the bottom of the limiting projection 312 and the air suction cavity 31, thereby ensuring the sealing effect of the lunch box after air suction is finished.
In the embodiment of the invention, a storage cavity is arranged in the lunch box body 1, at least one inner box 6 is detachably arranged in the storage cavity, wherein two or more inner boxes can be stacked in the storage cavity, and only one inner box is shown here. Specifically, the storage cavity can be a heat preservation inner container arranged inside the shell, and the inner box 6 is placed inside the heat preservation inner container as the storage cavity. As shown in fig. 8, which is a schematic diagram of an explosive structure of an inner box according to an embodiment of the present invention, the inner box 6 includes an inner box handle 61, an air-out silicone cap 62, an inner box cover 63, an inner box sealing ring 64, an inner box liner 65, an inner box threaded ring 66, and an inner box outer shell 67, wherein the inner box handle is rotatably disposed on the inner box cover 63; the exhaust silica gel cap 62 is detachably arranged at the exhaust hole on the inner box cover 63, and specifically, the silica gel cap can be detachably plugged in an interference fit manner; the inner box thread ring 66 and the inner box shell 67 can be designed integrally, so that the inner box cover 63 and the inner box shell 67 are combined and fixed in a thread matching mode; the inner box liner 65 is arranged inside the inner box shell 67, and the inner box sealing ring is arranged between the inner box cover and the inner box shell and used for ensuring the sealing effect of the whole inner box after the inner box cover is covered.
In addition, in the embodiment of the invention, in order to ensure the fresh-keeping effect of the inner box, the inner container can be arranged in the shell of the lunch box body, and the inner box is arranged in the inner container, so that the fresh-keeping effect of the lunch box is further ensured.
In the embodiment of the invention, the lunch box body is provided with the pressure relief device 7 for balancing the pressure difference between the inside of the lunch box body and the outside. In particular, in the present embodiment, the pressure relief device 7 may be a pressure relief valve, which belongs to common components and is not described in further detail herein. It is noted that in the embodiment of the invention, the degree of air exhaust of the lunch box can be flexibly adjusted, the air exhaust amount can be selected according to the food stored actually, once the lunch box cover which is exhausted too much is difficult to open, the pressure inside and outside the lunch box body can be relieved through the pressure relief device to balance the air pressure, and the lunch box is convenient to open.
In the embodiment of the invention, a tableware placing cavity 8 is arranged on the lunch box cover, a cover plate 9 can be rotatably arranged on the tableware placing cavity, and common tableware such as spoons and forks can be placed in the tableware placing cavity. Specifically, as shown in fig. 9, which is a schematic structural diagram illustrating an opened state of the dish placing chamber according to an embodiment of the present invention, a fixing groove or a fixing and fastening structure for fixing the dish may be disposed in the dish placing chamber, which is not described in further detail herein. The two cover plates 9 are arranged in the embodiment of the invention, the adjacent edges of the two cover plates are fixed and rotatable edges, and the cover plates can be fixed on the lunch box cover in a clamping manner.
In the embodiment of the present invention, a lunch box handle 10 may be further disposed on the outer case 2, and the lunch box handle may be rotatably disposed so as to facilitate carrying of the lunch box.
According to the lunch box provided by the embodiment of the invention, the air extraction device is arranged on the lunch box, the air extraction opening and the air exhaust opening are continuously and alternately opened and closed by pushing and pulling the movable piston, so that air in the lunch box is extracted, the operation is simple, the lunch box and the air extraction device are integrally arranged, air can be extracted at any time and any place, and the flexibility of air extraction of the lunch box is improved.
Example two
Another objective of an embodiment of the present invention is to provide an air exhaust apparatus, as shown in fig. 10, which is a schematic structural diagram of the air exhaust apparatus provided in an embodiment of the present invention, the air exhaust apparatus includes:
the device comprises a device body 11, wherein an air suction cavity 31 is arranged on the device body 11, and an air suction opening 32 is arranged on the air suction cavity 31;
the piston 41 is movably arranged in the air suction cavity 31 and is in sealing fit with the inner wall of the air suction cavity 31, and an exhaust port 44 communicated with the outside is arranged on the piston 41;
a first seal member 42 and a second seal member 43, the first seal member 42 and the second seal member 43 being provided at the suction port 32 and the exhaust port 44, respectively, so that the suction port 32 is opened and the exhaust port 44 is closed when the piston 41 moves to suction, and the exhaust port 44 is opened and the suction port 32 is closed when the piston 41 moves to exhaust.
In addition, other parts of the air exhaust device provided in the embodiment of the present invention may be configured in the same way as part of or all of the structure of the air exhaust device in the foregoing embodiment, and a description thereof is not repeated in this embodiment, and a person skilled in the art can design and apply the air exhaust device provided in this embodiment according to the foregoing embodiment.
According to the air extracting device provided by the embodiment of the invention, the device body is arranged on the container for extracting air during air extraction, the air extracting opening is communicated with the interior of the container, the air extracting opening and the air exhaust opening are continuously and alternately opened and closed by pushing and pulling the movable piston, so that air in the container is extracted, the operation is simple, and the flexibility of air extraction is improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A lunchbox, comprising:
the lunch box comprises a lunch box body, a lunch box cover and a lunch box cover, wherein the lunch box body comprises a shell and the lunch box cover; the lunch box cover is detachably arranged on the shell, an air suction cavity is arranged on the lunch box cover, and an air suction opening communicated with the inside of the lunch box body is formed in the air suction cavity; and
the air extracting device is arranged on the lunch box cover and comprises a piston, a first sealing assembly and a second sealing assembly; the piston is movably arranged in the air pumping cavity and is in sealing fit with the inner wall of the air pumping cavity, and an air outlet communicated with the outside is formed in the piston; the first sealing assembly and the second sealing assembly are respectively arranged at the air suction opening and the air exhaust opening, so that the air suction opening is opened and the air exhaust opening is closed when the piston moves to suck air, and the air exhaust opening is opened and the air suction opening is closed when the piston moves to exhaust air.
2. The lunch box according to claim 1, wherein a locking mechanism is arranged between the piston and the lunch box body and used for locking the movement of the piston in the air pumping cavity so that the second sealing assembly closes the air pumping opening.
3. The lunch box according to claim 2, wherein the locking mechanism comprises a locking groove formed in the inner wall of the air suction cavity and a locking block arranged on the piston, and the locking block can be inserted into the locking groove to form locking along with the rotation of the piston.
4. The lunchbox of claim 1, wherein the first seal assembly comprises:
a first seal movably disposed at the exhaust port;
the first sealing piece is arranged between the piston and the pressing cover, and is used for setting the first sealing piece so that the first sealing piece can movably open or close the communication between the vent groove and the vent hole.
5. The lunchbox of claim 1, wherein the second seal assembly comprises:
a second seal movably disposed at the suction port;
the limiting piece is arranged in the air exhaust cavity and used for limiting the moving distance of the second sealing piece; and
the pushing piece is arranged between the piston and the second sealing piece, and the pushing piece can push the second sealing piece to seal the air suction port under the driving of the piston.
6. A lunch box according to claim 5, wherein the piston is provided with a driving member for driving the driving member to move, and the driving member is provided with a passage for communicating the exhaust port with the suction chamber.
7. The lunch box according to claim 1, wherein a return elastic member is provided between the piston and the suction chamber.
8. The lunch box according to claim 1, wherein a storage cavity is arranged inside the lunch box body, at least one inner box is detachably arranged in the storage cavity, the inner box comprises an inner box cover and an inner box shell, the inner box cover is detachably arranged on the inner box shell, the inner box cover is provided with an air hole, and the air hole is detachably provided with an exhaust silica gel cap.
9. The lunch box according to claim 1, wherein a pressure relief device is provided on the lunch box body for balancing a pressure difference between the inside of the lunch box body and the outside.
10. The lunch box according to claim 1, wherein a tableware placing cavity is formed in the lunch box cover, and a cover plate is rotatably provided on the tableware placing cavity.
11. An air extraction device, comprising:
the device comprises a device body, wherein an air exhaust cavity is arranged on the device body, and an air exhaust opening is formed in the air exhaust cavity;
the piston is movably arranged in the air pumping cavity and is in sealing fit with the inner wall of the air pumping cavity, and an air outlet communicated with the outside is formed in the piston;
the first sealing assembly and the second sealing assembly are respectively arranged at the air suction opening and the air exhaust opening, so that the air suction opening is opened and the air exhaust opening is closed when the piston moves to suck air, and the air exhaust opening is opened and the air suction opening is closed when the piston moves to exhaust air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010171409.5A CN111483696A (en) | 2020-03-12 | 2020-03-12 | Lunch box and air exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010171409.5A CN111483696A (en) | 2020-03-12 | 2020-03-12 | Lunch box and air exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111483696A true CN111483696A (en) | 2020-08-04 |
Family
ID=71791387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010171409.5A Pending CN111483696A (en) | 2020-03-12 | 2020-03-12 | Lunch box and air exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111483696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113633082A (en) * | 2021-07-14 | 2021-11-12 | 广州理工学院 | Lunch box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120012663A (en) * | 2010-08-02 | 2012-02-10 | 구정오 | Vacuum Generating Apparatus and Vacuum Container Using the Same |
| CN205525689U (en) * | 2016-02-05 | 2016-08-31 | 厦门帝尔特企业有限公司 | Preservation box |
| CN207220399U (en) * | 2017-09-30 | 2018-04-13 | 吕志良 | A kind of Vacuum lunch box |
| CN108910307A (en) * | 2018-08-07 | 2018-11-30 | 张国来 | A kind of push type heat preserving antistaling Vacuum lunch box |
| CN212100072U (en) * | 2020-03-12 | 2020-12-08 | 永康市新时代实业有限公司 | Lunch box |
-
2020
- 2020-03-12 CN CN202010171409.5A patent/CN111483696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120012663A (en) * | 2010-08-02 | 2012-02-10 | 구정오 | Vacuum Generating Apparatus and Vacuum Container Using the Same |
| CN205525689U (en) * | 2016-02-05 | 2016-08-31 | 厦门帝尔特企业有限公司 | Preservation box |
| CN207220399U (en) * | 2017-09-30 | 2018-04-13 | 吕志良 | A kind of Vacuum lunch box |
| CN108910307A (en) * | 2018-08-07 | 2018-11-30 | 张国来 | A kind of push type heat preserving antistaling Vacuum lunch box |
| CN212100072U (en) * | 2020-03-12 | 2020-12-08 | 永康市新时代实业有限公司 | Lunch box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113633082A (en) * | 2021-07-14 | 2021-11-12 | 广州理工学院 | Lunch box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4909014A (en) | Vacuum storage device | |
| KR200457521Y1 (en) | Vessel of cosmetics with airtight | |
| EP1350737B1 (en) | Container assembly having a cover cap provided with a pump member to pump out air from the container | |
| KR200462552Y1 (en) | Vaccum container equipped with vaccum pump | |
| CN107640444B (en) | Vacuum cup | |
| KR101202284B1 (en) | A airless pump and airless pump have cosmetic case | |
| KR102454402B1 (en) | Vacuum containers, systems and methods | |
| CN108910307A (en) | A kind of push type heat preserving antistaling Vacuum lunch box | |
| CN107651318A (en) | Cup lid is vacuumized, vacuumize cup and vacuumizes stirring/crushing cup | |
| CN111483696A (en) | Lunch box and air exhaust device | |
| CN109279173A (en) | A kind of container cover of vacuum-pumping | |
| KR20130131838A (en) | Vaccum container equipped with vaccum pump | |
| CN212100072U (en) | Lunch box | |
| JP2019018917A (en) | Pump type liquid sealed container | |
| CN207536495U (en) | Cup lid is vacuumized, vacuumize cup and vacuumizes stirring/crushing cup | |
| CN212638547U (en) | Air pump and vacuum fresh-keeping container | |
| CN208948077U (en) | Moisture-proof preservation tank | |
| CN108557246A (en) | A kind of cup lid that cup body can be vacuumized | |
| CN209177221U (en) | A kind of container cover of vacuum-pumping | |
| KR200483650Y1 (en) | Foundation airless pump equipped with a cosmetic containers | |
| KR101090312B1 (en) | A airless pump have cream cosmetic case | |
| KR101789136B1 (en) | Compact cosmetic container with airless pump | |
| CN215098970U (en) | Vacuum sealing medicine box | |
| CN108216937B (en) | Vacuumizing device | |
| CN207029939U (en) | Preserving jar vacuum cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |