CN113353435B - Sealing bag capable of exhausting air unidirectionally - Google Patents
Sealing bag capable of exhausting air unidirectionally Download PDFInfo
- Publication number
- CN113353435B CN113353435B CN202110715034.9A CN202110715034A CN113353435B CN 113353435 B CN113353435 B CN 113353435B CN 202110715034 A CN202110715034 A CN 202110715034A CN 113353435 B CN113353435 B CN 113353435B
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- Prior art keywords
- air
- air valve
- valve device
- unidirectional
- edge
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- 238000007789 sealing Methods 0.000 title claims abstract description 41
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a sealing bag capable of exhausting unidirectionally, which comprises a bag body and a unidirectional air valve device, wherein a mounting opening is formed in the bag body, the unidirectional air valve device is embedded in the mounting opening, the edge of the unidirectional air valve device is fixedly connected with the edge of the mounting opening and is in sealing fit with the edge of the mounting opening, the air inlet end of the unidirectional air valve device faces the inner side of the bag body, the air outlet end of the unidirectional air valve device faces the outer side of the bag body, and the unidirectional air valve device is used for being opened when the air pressure of the air inlet end of the unidirectional air valve device is greater than the air pressure of the air outlet end of the unidirectional air valve device, and being closed when the air pressure of the air inlet end of the unidirectional air valve device is smaller than or equal to the air pressure of the air outlet end of the unidirectional air valve device. The invention can realize the one-way exhaust function, is beneficial to exhausting the air in the bag body, and well meets the needs of users and market demands.
Description
Technical Field
The invention relates to a sealing bag and a fresh-keeping bag, in particular to a sealing bag capable of exhausting air unidirectionally.
Background
In the prior art, a plurality of containing devices need to discharge some internal air during the use process, such as a containing bag, a fresh-keeping bag and the like, the prior art bags are generally not provided with valves for discharging the air, in the use process, a user can only squeeze the bag before sealing the bag, and squeeze the air in the bag as much as possible, but the mode is insufficient for discharging the air in the bag completely, and particularly when the bag is used as the fresh-keeping bag, the fresh-keeping function is difficult to realize because more air exists in the bag, and the user needs and market demands cannot be met.
Disclosure of Invention
The invention aims to solve the technical problem of providing a sealing bag with a unidirectional exhaust function, which is helpful for exhausting air in a bag body.
In order to solve the technical problems, the invention adopts the following technical scheme.
The utility model provides a but one-way exhaust sealed bag, its is including the bag body and one-way pneumatic valve device, the installing port has been seted up on the bag body, one-way pneumatic valve device inlays to be located in the installing port, the edge of one-way pneumatic valve device with the edge fixed connection and the two sealing fit of installing port, the inlet end orientation of one-way pneumatic valve device the inboard of the bag body, the exhaust end orientation of one-way pneumatic valve device the outside of the bag body, one-way pneumatic valve device is used for opening when its inlet end atmospheric pressure is greater than the exhaust end atmospheric pressure to and close when its inlet end atmospheric pressure is less than or equal to the exhaust end atmospheric pressure.
Preferably, the unidirectional air valve device comprises a middle frame, an upper cover and a lower cover, wherein the lower cover is covered at the bottom of the middle frame and is provided with an air inlet cavity between the middle frame and the middle frame, the lower cover is provided with an air inlet hole communicated with the air inlet cavity, the upper cover is covered at the top of the middle frame and is provided with an air outlet cavity between the middle frame and the air inlet cavity, the upper cover is provided with an air outlet hole communicated with the air outlet cavity, the cavity bottom of the air outlet cavity is provided with an air valve hole penetrating through the upper side and the lower side of the middle frame, the air outlet cavity is internally provided with a valve core, the valve core comprises an air valve umbrella cap and an air valve umbrella handle, the air valve umbrella handle downwards extends from the center of the inner side of the air valve umbrella cap, the air valve umbrella handle is mutually clamped or fixedly connected with the middle frame, and the air valve umbrella cap covers the air valve hole, and the air valve umbrella cap is in sealing fit with the cavity bottom of the air outlet cavity.
Preferably, a plurality of air inlets distributed in an array are formed in the lower cover, a plurality of convex parts distributed in an array are formed on the inner wall of the bag body, the convex parts are arranged opposite to the lower cover, and the convex parts and the air inlets are arranged in a staggered mode.
Preferably, the end of the protruding portion is provided with a recess.
Preferably, the top of the upper cover is formed with an annular flange for cooperating with the air suction port of the air pump, and the air discharge hole is located inside the annular flange.
Preferably, the edge of the middle frame protrudes to the outer side of the upper cover, a clamping opening is formed between the lower end edge of the upper cover and the middle frame, and the edge of the mounting opening is clamped in the clamping opening.
Preferably, an inner baffle ring and an outer baffle ring which are outwards protruded are formed at the edge of the mounting opening, the inner baffle ring and the outer baffle ring are both encircling the mounting opening, an annular clamping groove is formed between the inner baffle ring and the outer baffle ring, and the lower end edge of the upper cover is clamped in the annular clamping groove.
Preferably, a lower baffle ring protruding inwards is formed at the edge of the mounting opening, and the middle frame is clamped on the inner side of the lower baffle ring.
Preferably, an inner sealing ring and an outer sealing ring protruding inwards are formed at the edge of the mounting opening, the inner sealing ring and the outer sealing ring encircle the mounting opening, and the inner sealing ring and the outer sealing ring are tightly abutted with the middle frame.
Preferably, the protruding height of the outer baffle ring is greater than the protruding height of the inner baffle ring.
In the sealing bag capable of exhausting unidirectionally disclosed by the invention, the mounting opening is formed in the bag body, meanwhile, the unidirectional air valve device is mounted in the mounting opening, after the bag body is sealed, the air inlet end air pressure of the unidirectional air valve device is larger than the air outlet end air pressure by extruding the bag body or by utilizing the air pump to exhaust the unidirectional air valve device, under the action of internal and external pressure difference, the unidirectional air valve device is used for communicating the internal space and the external space of the bag body, and when the bag body is stopped to be extruded or the air exhaust of the unidirectional air valve device is stopped, the air inlet end air pressure of the unidirectional air valve device is smaller than or equal to the air outlet end air pressure, and the unidirectional air valve device is not subjected to air pressure, so that the closing state is recovered, thereby realizing the unidirectional air exhaust function, facilitating the exhaust of the air in the bag body and better meeting the requirements of users and market.
Drawings
FIG. 1 is a perspective view of a sealed bag;
FIG. 2 is a side view of the one-way valve assembly;
FIG. 3 is a cross-sectional view taken along line D-D of FIG. 2;
FIG. 4 is an exploded view of the one-way valve assembly;
FIG. 5 is an exploded view of a second one-way valve assembly;
FIG. 6 is a perspective view of a center;
fig. 7 is a perspective view of the lower cover;
FIG. 8 is a perspective view of the valve cartridge;
FIG. 9 is a block diagram of the bag and one-way valve assembly;
FIG. 10 is a front view of the sealed bag;
FIG. 11 is a cross-sectional view taken along line A-A of FIG. 10;
FIG. 12 is an enlarged view of portion B of FIG. 11;
FIG. 13 is a partial cross-sectional view of the pouch;
FIG. 14 is a second perspective view of the sealed bag;
FIG. 15 is a third perspective view of the sealed bag;
fig. 16 is an enlarged view of the middle C portion.
Detailed Description
The invention is described in more detail below with reference to the drawings and examples.
Example 1
This embodiment provides a sealing bag that can one-way exhaust, combines the fig. 1 to 16 to show, and it includes bag body 1 and one-way pneumatic valve device 2, set up mounting hole 3 on the bag body 1, one-way pneumatic valve device 2 inlays and locates in the mounting hole 3, the edge of one-way pneumatic valve device 2 with the edge fixed connection and the two sealing fit of mounting hole 3, the inlet end orientation of one-way pneumatic valve device 2 the inboard of bag body 1, the exhaust end orientation of one-way pneumatic valve device 2 the outside of bag body 1, one-way pneumatic valve device 2 is used for opening when its inlet end atmospheric pressure is greater than the exhaust end atmospheric pressure to and closes when its inlet end atmospheric pressure is less than or equal to the exhaust end atmospheric pressure.
In the above structure, the mounting opening 3 is formed in the bag body 1, meanwhile, the unidirectional air valve device 2 is mounted in the mounting opening 3, after the bag body 1 is sealed, the air inlet end air pressure of the unidirectional air valve device is enabled to be greater than the air outlet end air pressure by extruding the bag body 1 or by utilizing an air pump to pump air, under the action of internal and external pressure difference, the unidirectional air valve device is used for communicating the internal space and the external space of the bag body 1, when the extrusion of the bag body 1 is stopped or the air suction of the unidirectional air valve device is stopped, the air inlet end air pressure of the unidirectional air valve device is less than or equal to the air outlet end air pressure, and the unidirectional air valve device does not bear the air pressure, so that the unidirectional air valve device is restored to a closed state, thereby realizing the unidirectional air discharging function, being beneficial to discharging the air in the bag body, and meeting the requirements of users and market well.
In practical applications, the unidirectional air valve device 2 may be circular, square or other shapes, and the specific shape is not limited by the present invention, that is, whichever shape is adopted, is within the scope of the present invention.
As a preferred mode, the unidirectional air valve device 2 includes a middle frame 20, an upper cover 21 and a lower cover 22, the lower cover 22 is covered at the bottom of the middle frame 20 and an air inlet cavity 24 is formed between the two, an air inlet hole 220 communicated with the air inlet cavity 24 is formed on the lower cover 22, an air exhaust cavity 23 is formed between the two and the top of the middle frame 20, an air exhaust hole 210 communicated with the air exhaust cavity 23 is formed on the upper cover 21, an air valve hole 200 penetrating through the upper side and the lower side of the middle frame 20 is formed at the bottom of the air exhaust cavity 23, a valve core 25 is arranged in the air exhaust cavity 23, the valve core 25 includes an air valve umbrella cap 250 and an air valve umbrella stem 251, the air valve umbrella stem 251 extends downwards from the center of the inner side of the air valve umbrella cap 250, the air valve umbrella stem 251 is mutually clamped or fixedly connected with the middle frame 20, the air valve umbrella cap 250 covers the air valve hole 200, and the air valve umbrella cap 250 is matched with the bottom of the air exhaust cavity 23 in a sealing manner.
In this embodiment, the lower cover 22 is provided with a plurality of air inlets 220 distributed in an array, the inner wall of the bag 1 is formed with a plurality of protrusions 12 distributed in an array, the protrusions 12 are disposed opposite to the lower cover 22, and the protrusions 12 are disposed with the air inlets 220 in a staggered manner.
In the above structure, since the plurality of protruding portions 12 are disposed in the bag body 1, the protruding portions 12 are opposite to the lower cover 22, so that when the unidirectional air valve device 2 is pumped, the protruding portions 12 can be abutted against the lower cover 22, thereby avoiding that the inner wall of the bag body 1 is attached to the lower cover 22 to cover the air inlet 220, and in addition, the protruding portions 12 and the air inlet 220 are staggered, so that the protruding portions 12 are further prevented from blocking the air inlet 220, and the air flow is ensured to be smoothly discharged outwards.
Preferably, the end of the projection 12 is provided with a recess 120.
For convenience of matching with the air pump, in this embodiment, an annular flange 214 for matching with the air suction port of the air pump is formed at the top of the upper cover 21, and the air discharge hole 210 is located inside the annular flange 214.
In order to be fixedly connected to the edge of the mounting opening 3, in this embodiment, the edge of the middle frame 20 protrudes to the outside of the upper cover 21, a clamping opening 28 is formed between the lower end edge of the upper cover 21 and the middle frame 20, and the edge of the mounting opening 3 is clamped in the clamping opening 28.
In order to further improve the reliability and air tightness of the interconnection between the unidirectional air valve device 2 and the edge of the mounting opening 3, in this embodiment, an inner baffle ring 30 and an outer baffle ring 31 protruding outwards are formed at the edge of the mounting opening 3, the inner baffle ring 30 and the outer baffle ring 31 both encircle the mounting opening 3, an annular clamping groove 32 is formed between the inner baffle ring 30 and the outer baffle ring 31, and the edge of the lower end of the upper cover 21 is clamped in the annular clamping groove 32.
In order to better engage with the middle frame 20 and seal, in this embodiment, a lower baffle ring 33 protruding inwards is formed at the edge of the mounting opening 3, and the middle frame 20 is engaged with the inner side of the lower baffle ring 33.
As a preferable mode, an inner sealing ring 34 and an outer sealing ring 35 protruding inwards are formed at the edge of the mounting opening 3, the inner sealing ring 34 and the outer sealing ring 35 encircle the mounting opening 3, and the inner sealing ring 34 and the outer sealing ring 35 are tightly abutted against the middle frame 20. The above structure is helpful to improve the sealing performance of the connection between the unidirectional air valve device 2 and the edge of the mounting port 3, and in addition, the connection can be performed by other modes such as hot-pressing fixation, glue fixation, etc.
Preferably, the protruding height of the outer retainer ring 31 is greater than the protruding height of the inner retainer ring 30. The mode of arranging the inner baffle ring and the outer baffle ring in a high-low mode is beneficial to improving the sealing performance and is beneficial to installation and fixation.
The bag body 1 in this embodiment may be used as a fresh-keeping bag, where the bag body 1 includes a bag opening 10, and a sealing zipper 11 is disposed at the edge of the bag opening 10.
Example two
The embodiment proposes a unidirectional air valve device, as shown in fig. 2 to 8, comprising a middle frame 20, an upper cover 21 and a lower cover 22, wherein the lower cover 22 is covered at the bottom of the middle frame 20 and an air inlet cavity 24 is formed between the two, an air inlet hole 220 communicated with the air inlet cavity 24 is formed on the lower cover 22, an air exhaust cavity 23 is formed between the two and the top of the middle frame 20, an air exhaust hole 210 communicated with the air exhaust cavity 23 is formed on the upper cover 21, an air valve hole 200 penetrating through the upper side and the lower side of the middle frame 20 is formed at the bottom of the air exhaust cavity 23, a valve core 25 is arranged in the air exhaust cavity 23, the valve core 25 comprises an air valve umbrella cap 250 and an air valve umbrella handle 251, the air valve umbrella handle 251 extends downwards from the inner center of the air valve umbrella cap 250, the air valve umbrella handle 251 is mutually clamped or fixedly connected with the middle frame 20, the air valve umbrella cap 250 covers the air valve hole 200, and the air valve hole 250 is matched with the bottom of the air valve cavity 23 in a sealing manner.
In the above device, the upper cover 21 and the lower cover 22 are respectively disposed at the upper and lower ends of the middle frame 20, and the valve core 25 is disposed on the middle frame 20 in a penetrating manner, and because the valve core 25 is umbrella-shaped and the valve cap 250 thereof is inversely buckled at the bottom of the exhaust cavity 23, when the air pressure at the air inlet end of the unidirectional valve device is greater than the air pressure at the air outlet end, the valve cap 250 is outwardly opened and deformed, so as to communicate the inner space and the outer space of the unidirectional valve device, and when the air pressure at the air inlet end of the unidirectional valve device is less than or equal to the air pressure at the air outlet end, the valve cap 250 is not subjected to pressure, and is kept in a state of sealing contact with the bottom of the exhaust cavity 23 by utilizing its own elasticity, so as to separate the inner space and the outer space of the unidirectional valve device.
In this embodiment, the top of the middle frame 20 is recessed downward to form the exhaust chamber 23. Wherein the downwardly concave exhaust chamber 23 provides a receiving space for the valve core 25 and facilitates the close fitting of the upper cover 21 with the middle frame 20.
As a preferred mode, two exhaust chambers 23 are provided at the top of the middle frame 20, two exhaust holes 210 are provided on the upper cover 21, and the exhaust holes 210 are in one-to-one correspondence with the exhaust chambers 23. In this embodiment, two valve cores 25 are provided to help increase the air pressure that can be received. However, this is only an example of the application of the present invention, and is not intended to limit the present invention, and in practical applications, one, two, three or other numbers of the exhaust chambers 23 and the valve spools 25 may be provided according to the needs, and all the numbers of the exhaust chambers and the valve spools are included in the protection scope of the present invention.
In order to better install and fix the valve core 25, in this embodiment, a jack 230 is formed at the bottom center of the exhaust cavity 23, and the air valve stem 251 passes through the jack 230.
As a preferred manner, the cavity bottom of the exhaust cavity 23 is provided with 3 arc-shaped air valve holes 200,3 air valve holes 200 which are uniformly distributed along the periphery of the jack 230. Among them, the 3 arc-shaped air valve holes 200 can secure a sufficient air flow, contributing to an increase in exhaust speed.
The valve core in this embodiment is preferably fixed by a clamping manner, specifically, the valve stem 251 is formed with an inverted cone-shaped buckle 252, and the inverted cone-shaped buckle 252 is clamped on the bottom surface of the middle frame 20.
In order to ensure that the exhaust chambers 23 are aligned with the exhaust holes 210 one by one, in this embodiment, a positioning pin 211 extending downward is formed at the center of the upper cover 21, a positioning slot 212 is formed at an end of the positioning pin 211, a positioning jack 201 is formed at the center of the top of the middle frame 20, a positioning insert block 202 is formed in the positioning jack 201, the positioning pin 211 is inserted into the positioning jack 201, and the positioning insert block 202 is clamped in the positioning slot 212.
As a preferred mode, the top of the middle frame 20 is formed with a bulge 26, the exhaust cavity 23 and the positioning jack 201 are both located at the top of the bulge 26, a convex ring 260 is formed on the side wall of the bulge 26, at least two upper hooks 213 are formed on the inner side wall of the upper cover 21, the bulge 26 is located at the inner side of the upper cover 21, and the upper hooks 213 and the convex ring 260 are engaged with each other. The above structure helps to reliably fix the center 20 to the upper cover 21.
In order to better connect with the lower cover 22, in this embodiment, an annular shroud 27 is formed at the bottom of the middle frame 20, at least two lower hooks 270 are formed on the outer side wall of the annular shroud 27, at least two L-shaped slots 221 are formed on the inner side wall of the lower cover 22, the lower hooks 270 are in one-to-one correspondence with the L-shaped slots 221, and the lower hooks 270 are clamped in the L-shaped slots 221.
Further, a plurality of air inlets 220 are formed on the lower cover 22 and distributed in an array.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a sealing bag capable of exhausting unidirectionally, which is characterized by comprising a bag body (1) and a unidirectional air valve device (2), wherein a mounting port (3) is formed in the bag body (1), the unidirectional air valve device (2) is embedded in the mounting port (3), the edge of the unidirectional air valve device (2) is fixedly connected with the edge of the mounting port (3) and is in sealing fit with the edge of the mounting port, the air inlet end of the unidirectional air valve device (2) faces the inner side of the bag body (1), the air outlet end of the unidirectional air valve device (2) faces the outer side of the bag body (1), and the unidirectional air valve device (2) is used for being opened when the air pressure of the air inlet end is larger than the air pressure of the air outlet end and being closed when the air pressure of the air inlet end is smaller than or equal to the air pressure of the air outlet end;
the unidirectional air valve device (2) comprises a middle frame (20), an upper cover (21) and a lower cover (22), wherein the lower cover (22) is covered at the bottom of the middle frame (20) and is provided with an air inlet cavity (24) between the two, an air inlet hole (220) communicated with the air inlet cavity (24) is formed in the lower cover (22), the upper cover (21) is covered at the top of the middle frame (20) and is provided with an air outlet cavity (23) between the two, an air outlet hole (210) communicated with the air outlet cavity (23) is formed in the upper cover (21), air valve holes (200) penetrating through the upper side and the lower side of the middle frame (20) are formed in the cavity bottom of the air outlet cavity (23), a valve core (25) is arranged in the air outlet cavity (23), the valve core (25) comprises an air valve cap (250) and an air valve handle (251), the air valve cap (251) extends downwards from the center of the inner side of the air valve cap (250), the air valve handle (251) is clamped with the middle frame (20) or is fixedly connected with the air valve cap (250), and the air valve cap (250) are fixedly matched with the air valve holes (200);
A plurality of air inlets (220) distributed in an array manner are formed in the lower cover (22), a plurality of convex parts (12) distributed in an array manner are formed in the inner wall of the bag body (1), the convex parts (12) are arranged opposite to the lower cover (22), and the convex parts (12) and the air inlets (220) are arranged in a staggered manner;
an annular flange (214) for being matched with an air suction port of the air pump is formed at the top of the upper cover (21), and the exhaust hole (210) is positioned on the inner side of the annular flange (214).
2. The one-way ventable sealed pouch of claim 1, wherein the ends of the protrusions (12) are notched (120).
3. The sealed bag capable of one-way air discharge according to claim 1, wherein the edge of the middle frame (20) protrudes to the outside of the upper cover (21), a clamping opening (28) is formed between the lower end edge of the upper cover (21) and the middle frame (20), and the edge of the mounting opening (3) is clamped in the clamping opening (28).
4. A sealing bag capable of unidirectionally exhausting air according to claim 3, wherein an inner baffle ring (30) and an outer baffle ring (31) which are outwards protruded are formed at the edge of the mounting opening (3), the inner baffle ring (30) and the outer baffle ring (31) are both surrounded on the mounting opening (3), an annular clamping groove (32) is formed between the inner baffle ring (30) and the outer baffle ring (31), and the lower end edge of the upper cover (21) is clamped in the annular clamping groove (32).
5. The sealing bag capable of being exhausted unidirectionally according to claim 4, wherein a lower baffle ring (33) protruding inwards is formed at the edge of the mounting opening (3), and the middle frame (20) is clamped inside the lower baffle ring (33).
6. A sealed bag capable of unidirectional exhaust as claimed in claim 3, characterized in that an inner sealing ring (34) and an outer sealing ring (35) protruding inwards are formed at the edge of the mounting opening (3), the inner sealing ring (34) and the outer sealing ring (35) are both encircling the mounting opening (3), and the inner sealing ring (34) and the outer sealing ring (35) are both tightly abutted with the middle frame (20).
7. The one-way ventable sealed pouch according to claim 4, wherein the protruding height of the outer baffle ring (31) is greater than the protruding height of the inner baffle ring (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715034.9A CN113353435B (en) | 2021-06-25 | 2021-06-25 | Sealing bag capable of exhausting air unidirectionally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715034.9A CN113353435B (en) | 2021-06-25 | 2021-06-25 | Sealing bag capable of exhausting air unidirectionally |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113353435A CN113353435A (en) | 2021-09-07 |
| CN113353435B true CN113353435B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110715034.9A Active CN113353435B (en) | 2021-06-25 | 2021-06-25 | Sealing bag capable of exhausting air unidirectionally |
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| Country | Link |
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| CN (1) | CN113353435B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833878B (en) * | 2021-09-15 | 2024-05-17 | 广东太力科技集团股份有限公司 | Pumping and charging dual-purpose air valve and vacuum storage bag |
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| EP3093492B1 (en) * | 2013-10-25 | 2019-09-11 | Xiamen Koge Micro Tech Co., Ltd | Valve clack and air pump having same |
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| CN113353435A (en) | 2021-09-07 |
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