CN109502162B - One-way exhaust channel for vacuum compression bag - Google Patents
One-way exhaust channel for vacuum compression bag Download PDFInfo
- Publication number
- CN109502162B CN109502162B CN201811390395.5A CN201811390395A CN109502162B CN 109502162 B CN109502162 B CN 109502162B CN 201811390395 A CN201811390395 A CN 201811390395A CN 109502162 B CN109502162 B CN 109502162B
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- air passage
- bag body
- air
- passage
- bag
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- 230000006835 compression Effects 0.000 title claims abstract description 28
- 238000007906 compression Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009461 vacuum packaging Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/01—Ventilation or drainage of bags
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Abstract
The invention provides a one-way exhaust channel used on a vacuum compression bag, which is rapid in exhaust and has good sealing performance, wherein the one-way exhaust channel is arranged on the lower side of a bag body and comprises a horizontal air channel, an inclined air channel, a vertical air channel which are communicated with each other, an air inlet which is communicated with the bag body and an air outlet which is communicated with the outside, and the one-way exhaust channel is arranged at the position of the corner of the lower side of the bag body. After the air in the bag body is discharged outside, the internal pressure is smaller than the atmospheric pressure, under the action of the atmospheric pressure, the bag body is extruded and compressed and deformed by the air, and the degree of freedom is larger at the position near the corner of the bag body, and the position is less influenced when the bag body is compressed and deformed, so that when the air outlet is close to the corner of the bag body, the air outlet is not easy to be closed due to the deformation of the bag body, thereby continuously ensuring that the air in the bag body can be smoothly discharged outside from the air outlet.
Description
[ Field of technology ]
The invention relates to a one-way exhaust channel used on a vacuum compression bag.
[ Background Art ]
The traditional vacuum packaging bag is provided with a vacuum extraction valve, and the bag body can be vacuumized only by matching with a vacuum extraction pump when the traditional vacuum packaging bag is used, so that the traditional vacuum packaging bag is very inconvenient to use. And the vacuum packaging bag needs to be purchased additionally, so that the cost of the vacuum packaging bag is low for consumers. Furthermore, the process of evacuating with a vacuum pump is laborious and time consuming, and some manual vacuum pumps have an inefficient evacuation, especially for larger vacuum bags, which require a longer evacuation time.
The present inventors have developed a simpler way of exhausting, that is, a unidirectional exhaust channel for exhausting is directly provided at the bottom of a vacuum compression bag, but in the development process, it is found that there are phenomena such as unsmooth exhaust and/or air leakage in unidirectional exhaust channels of various structures, for example, the unidirectional exhaust channel is two mutually staggered air channels provided at the bottom of the bag body, which can realize smoother exhaust, but after two to three days, the external air flows back into the bag body through the unidirectional exhaust channel, so that the unidirectional exhaust channel cannot guarantee the tightness of the bag body.
[ Invention ]
The invention aims to provide a one-way exhaust channel for a vacuum compression bag, which is rapid in exhaust and has good sealing performance.
The purpose of the invention is realized in the following way:
The unidirectional exhaust channel is arranged on the lower side of the bag body and comprises a horizontal air channel, an inclined air channel, a vertical air channel, an air inlet and an air outlet, wherein the horizontal air channel, the inclined air channel and the vertical air channel are communicated with each other, and the air inlet is communicated with the bag body.
A one-way vent passage for use in a vacuum compression bag as described above is provided at a location in a corner of the underside of the bag body.
The one-way exhaust channel for the vacuum compression bag is characterized in that the air inlet is arranged at the end part of the horizontal air channel and faces the middle part of the bottom edge of the bag body, and the air outlet is arranged at the lower side of the vertical air channel and is close to the corner of the bag body.
According to the first embodiment of the unidirectional exhaust channel for the vacuum compression bag, the horizontal air channel is parallel to the bottom edge of the bag body, the air inlet is formed in the end part of the horizontal air channel, the vertical air channel is close to the side part of the bag body, and the two ends of the inclined air channel are respectively communicated with the upper ends of the horizontal air channel and the vertical air channel.
In another embodiment of the unidirectional air exhaust channel used on the vacuum compression bag, in order to increase the number of times of changing the direction when the air passes through the unidirectional air exhaust channel to further improve the air tightness, the horizontal air channel comprises a first horizontal air channel and a second horizontal air channel which are parallel to the bottom edge of the bag body and are mutually communicated, the air inlet is arranged at the end part of the first horizontal air channel, the vertical air channel is close to the side part of the bag body, and the two ends of the inclined air channel are respectively communicated with the upper ends of the second horizontal air channel and the vertical air channel.
A unidirectional exhaust passage for a vacuum compression bag as described above, the width of the inlet, horizontal air passage, inclined air passage, vertical air passage and exhaust opening being 20mm to 60mm.
The length of the horizontal air passage is L1 and is 40mm less than or equal to L1 less than or equal to 150mm, the length of the inclined air passage is L2 and is 100mm less than or equal to L1 less than or equal to 250mm, and the length of the vertical air passage is L3 and is 100mm less than or equal to L1 less than or equal to 300mm.
A unidirectional exhaust passage for a vacuum compression bag is disclosed, wherein the inclined air passage forms an obtuse angle alpha with the side edge of the bag body, and the angle alpha is 120 degrees less than or equal to 160 degrees.
The one-way exhaust passage used on the vacuum compression bag is characterized in that the inclined air passage is hot-pressed with the anti-tearing arc-shaped hot pressing block at one side close to the obtuse angle alpha.
The one-way exhaust channel used on the vacuum compression bag can be a straight channel or an arc channel.
A one-way vent for use in a vacuum compression bag as described above, the vent being provided in either the side or bottom of the bag body.
Compared with the prior art, the invention has the following technical characteristics:
1. Because the air in the bag body is generally gathered at the bottom of the bag body in the process of pressing and exhausting, the air inlet faces the middle part of the bottom edge of the bag body so as to quickly exhaust the air gathered at the bottom of the bag body to the outside through the unidirectional exhaust channel;
2. After the air in the bag body is discharged outside, the internal pressure is smaller than the atmospheric pressure, under the action of the atmospheric pressure, the bag body is extruded and compressed and deformed by the air, and the degree of freedom is larger at the position near the corner of the bag body, and the position is less influenced when the bag body is compressed and deformed, so when the air outlet is close to the corner of the bag body, the air outlet is not easy to be closed due to the deformation of the bag body, thereby continuously ensuring that the air in the bag body can be smoothly discharged outside from the air outlet, and the air outlet can be arranged at the position of the side part or the bottom of the bag body close to the corner;
3. In the process of pressing and exhausting, air in the bag body enters the unidirectional exhaust passage from the air inlet and is exhausted from the air outlet through the horizontal air passage (the first horizontal air passage and the second horizontal air passage), the inclined air passage and the vertical air passage, and in the process, the air changes at least 3 times, so that the air can be ensured not to flow back into the bag body after being exhausted from the unidirectional exhaust passage, and the tightness of the bag body is further ensured; after the air is exhausted, 3 or 4 air passages such as a horizontal air passage (a first horizontal air passage and a second horizontal air passage), an inclined air passage, a vertical air passage and the like exist, so that the length of the whole air passage of the unidirectional air exhaust passage is long enough, air at least needs to pass through 3 long air passages and at least needs to overcome 3 changes of direction if the air reversely enters the bag body from the outside through the unidirectional air exhaust passage, the difficulty of air backflow is greatly increased, and in the process that the bag body is extruded and compressed and deformed by the air, the unidirectional air exhaust passage can be turned off as long as any air passage is deformed and bent, so that the air outside the bag body cannot enter the bag body through the unidirectional air exhaust passage, and the tightness of the bag body is further ensured;
4. Through the test of the width of the air passage, the conclusion can be drawn that the ideal exhaust effect can be achieved when the widths of the air inlet, the horizontal air passage, the inclined air passage, the vertical air passage and the exhaust port reach 20mm to 60 mm;
5. The total length of the one-way exhaust channel is 240mm-700mm, so that the length of the whole air channel of the one-way exhaust channel is long enough, the difficulty of air backflow is greatly increased, and the tightness of the bag body is further ensured;
6. By testing the inclination angle of the inclined air passage, the conclusion can be drawn that the ideal sealing effect can be ensured when the obtuse angle alpha formed by the inclined air passage and the side edge of the bag body reaches 120-160 degrees;
7. After the anti-tearing arc-shaped hot pressing block is hot-pressed on one side of the inclined air passage, which is close to the obtuse angle alpha, when the bag body is pressed for exhausting, the anti-tearing arc-shaped hot pressing block shares the bearing force born by the bag body, so that the stress is dispersed, the integral strength of the bag body is enhanced, the bag body is prevented from being broken at a stress concentration point, and the service life of the compression bag is prolonged;
[ description of the drawings ]
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a second schematic diagram of the present invention (the horizontal air passage includes a first horizontal air passage and a second horizontal air passage);
FIG. 3 is one of the usage state reference diagrams of the present invention;
FIG. 4 is a schematic view of the structure of the air vent of the present invention when the air vent is disposed at the bottom of the bag;
FIG. 5 is a second view of the usage status reference diagram of the present invention;
FIG. 6 is a schematic diagram of the length of the horizontal, inclined and vertical airways according to the present invention;
fig. 7 is a schematic structural view of the inclined airway of the present invention in an arc-shaped channel.
[ Detailed description ] of the invention
A unidirectional exhaust passage for a vacuum compression bag as shown in fig. 1 is provided at the lower side of the bag body 1, and includes a horizontal air passage 42, an inclined air passage 43, a vertical air passage 44, an air inlet 41 communicating with the bag body 1, and an air outlet 45 communicating with the outside.
Preferably, the unidirectional air discharge channel is provided at a position of a lower corner of the bag body 1.
The air inlet 41 is arranged at the end part of the horizontal air passage 42 and faces the middle part of the bottom edge of the bag body 1, the air outlet 45 is arranged at the lower side of the vertical air passage 44 and near the corner of the bag body 1, and the air outlet 45 is arranged at the side part (shown in fig. 3) or the bottom part (shown in fig. 4) of the bag body 1.
In the first embodiment of the present invention shown in fig. 1, the horizontal air passage 42 is parallel to the bottom edge of the bag body 1, the air inlet 41 is provided at the end of the horizontal air passage 42, the vertical air passage 44 is near the side of the bag body 1, and both ends of the inclined air passage 43 are respectively communicated with the upper ends of the horizontal air passage 42 and the vertical air passage 44.
In order to further increase the air tightness by increasing the number of times of changing the direction of the air passing through the unidirectional exhaust passage 4 in the second embodiment of the present invention as shown in fig. 2, the horizontal air passage 42 includes a first horizontal air passage 421 and a second horizontal air passage 422 which are parallel to the bottom edge of the bag body 1 and are communicated with each other, the air inlet 41 is provided at the end of the first horizontal air passage 421, the vertical air passage 44 is adjacent to the side of the bag body 1, and both ends of the inclined air passage 43 are respectively communicated with the upper ends of the second horizontal air passage 422 and the vertical air passage 44.
To achieve the desired exhaust effect, the width of the air inlet 41, the horizontal air passage 42 (the first horizontal air passage 421 and the second horizontal air passage 422), the inclined air passage 43, the vertical air passage 44, and the exhaust port 45 is 20mm to 60mm.
To achieve the desired exhaust effect and to ensure the desired sealing effect, the length of the horizontal air passage 42 is L1 and satisfies 40 mm.ltoreq.L1.ltoreq.150mm, the length of the inclined air passage 43 is L2 and satisfies 100 mm.ltoreq.L1.ltoreq.250mm, and the length of the vertical air passage 44 is L3 and satisfies 100 mm.ltoreq.L1.ltoreq.300mm.
To ensure the ideal sealing effect, the inclined air passage 43 forms an obtuse angle alpha with the side edge of the bag body 1, and satisfies 120 DEG.ltoreq.alpha.ltoreq.160 deg.
To improve the tearing resistance of the compression bag, the inclined air passage 43 is hot-pressed with a tearing-preventing arc-shaped hot pressing block 5 at a side close to the obtuse angle alpha.
It should be noted that the inclined air duct 43 of the present invention may be a straight channel as shown in fig. 1 to 6, an arc channel as shown in fig. 7, and the present invention is applicable to other bag structures besides the bag structures shown in fig. 3 and 5.
When the bag is used, objects such as a quilt or a pillow and the like to be placed are placed into the vacuum compression bag through the opening 2, the buckling structure 3 is closed to seal the opening 2 after the objects are placed, so that the objects are sealed in the bag body 1, when the air in the bag body 1 is required to be discharged outside, the bag body 1 is directly pressed, so that the air in the bag body 1 enters the unidirectional exhaust passage 4 from the air inlet 41 and sequentially passes through the horizontal air passage 42 (the first horizontal air passage 421 and the second horizontal air passage 422), the inclined air passage 43 and the vertical air passage 44 and then is discharged outside from the air outlet 45, in the process, the air changes the wind direction at least for 3 times, so that the air can not flow back into the bag body after being discharged outside from the unidirectional exhaust passage 4, and the unidirectional exhaust passage 4 can be cut off as long as any part of the air passage is deformed and bent in the process that the bag body 1 is extruded and compressed and deformed by the air, therefore, the difficulty of air passing through the unidirectional exhaust channel 4 is greatly increased, the air almost becomes something which is unlikely to happen if the air reversely enters the bag body 1 under the action of no additional external force, and the internal pressure of the air is far smaller than the atmospheric pressure after the air in the bag body 1 is discharged outside, under the action of the atmospheric pressure, the bag body 1 is extruded by the air and is compressed and deformed so that the unidirectional exhaust channel 4 is extruded by the atmosphere to be closed, and the bag body 1 is deformed and bent at the position of the unidirectional exhaust channel 4 so that the unidirectional exhaust channel 4 is further closed, so that the air outside the bag body 1 cannot reversely enter the bag body from the unidirectional exhaust channel 4, and the tightness of the bag body 1 is ensured, thereby being applicable to long-term sealing.
Claims (8)
1. The unidirectional exhaust channel used on the vacuum compression bag is characterized in that the unidirectional exhaust channel (4) is arranged at the lower side of the bag body (1), and the unidirectional exhaust channel (4) comprises a horizontal air channel (42), an inclined air channel (43) and a vertical air channel (44) which are communicated with each other, an air inlet (41) communicated with the bag body (1) and an air outlet (45) communicated with the outside; the horizontal air passage (42), the inclined air passage (43) and the vertical air passage (44) are connected in series and are not parallel to each other, and in the compression deformation process of the bag body (1), the unidirectional exhaust passage (4) can be closed as long as any air passage is deformed and bent;
The bag body (1) is a three-dimensional bag and comprises a front piece, a rear piece and a bottom piece; the unidirectional exhaust channel (4) is arranged at the position of the lower corner of the bag body (1);
the inclined air passage (43) forms an obtuse angle alpha with the side edge of the bag body (1), and the alpha is more than or equal to 120 degrees and less than or equal to 160 degrees;
the oblique air passage (43) is provided with an anti-tearing arc-shaped hot pressing block (5) in a hot pressing mode on one side close to the obtuse angle alpha.
2. A unidirectional exhaust passage for a vacuum compression bag as claimed in claim 1, characterized in that the air inlet (41) is provided at the end of the horizontal air passage (42) and toward the middle of the bottom edge of the bag body (1), and the air outlet (45) is provided at the lower side of the vertical air passage (44) and near the corner of the bag body (1).
3. A unidirectional exhaust passage for a vacuum compression bag as claimed in claim 2, wherein the horizontal air passage (42) is parallel to the bottom edge of the bag body (1), the air inlet (41) is provided at the end of the horizontal air passage (42), the vertical air passage (44) is close to the side of the bag body (1), and both ends of the inclined air passage (43) are respectively communicated with the upper ends of the horizontal air passage (42) and the vertical air passage (44).
4. A unidirectional exhaust passage for a vacuum compression bag as claimed in claim 2, wherein the horizontal air passage (42) comprises a first horizontal air passage (421) and a second horizontal air passage (422) which are parallel to the bottom edge of the bag body (1) and are communicated with each other, the air inlet (41) is arranged at the end part of the first horizontal air passage (421), the vertical air passage (44) is close to the side part of the bag body (1), and the two ends of the inclined air passage (43) are respectively communicated with the upper ends of the second horizontal air passage (422) and the vertical air passage (44).
5. A unidirectional exhaust passage for a vacuum compression bag according to claim 2 or 3, characterized in that the width of the inlet (41), horizontal air passage (42), inclined air passage (43), vertical air passage (44) and exhaust opening (45) is 20mm to 60mm.
6. A unidirectional exhaust passage for a vacuum compression bag according to claim 2 or 3, characterized in that the horizontal air passage (42) has a length L1 and satisfies 40mm +.l1 +.150mm, the inclined air passage (43) has a length L2 and satisfies 100mm +.l1 +.250mm, and the vertical air passage (44) has a length L3 and satisfies 100mm +.l1 +.300mm.
7. A unidirectional exhaust passage for a vacuum compression bag as claimed in any one of claims 1 to 4, characterized in that the inclined air passage (43) is a straight passage or an arc-shaped passage.
8. A unidirectional exhaust passage for a vacuum compression bag as claimed in claim 2, characterized in that the exhaust port (45) is provided at the side or bottom of the bag body (1).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390395.5A CN109502162B (en) | 2018-11-21 | 2018-11-21 | One-way exhaust channel for vacuum compression bag |
| DE112019005830.4T DE112019005830T5 (en) | 2018-11-21 | 2019-11-20 | Disposable air outlet channel for a vacuum compression bag and a vacuum compression bag with a disposable air outlet channel |
| JP2021528398A JP7191222B2 (en) | 2018-11-21 | 2019-11-20 | One-way exhaust passage used for vacuum compression bag and vacuum compression bag having the one-way exhaust passage |
| US17/288,921 US11702248B2 (en) | 2018-11-21 | 2019-11-20 | One-way air outlet channel for vacuum compression bag and vacuum compression bag having one-way air outlet channel |
| PCT/CN2019/119733 WO2020103868A1 (en) | 2018-11-21 | 2019-11-20 | One-way air outlet channel used for vacuum compression bag and vacuum compression bag having said one-way air outlet channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390395.5A CN109502162B (en) | 2018-11-21 | 2018-11-21 | One-way exhaust channel for vacuum compression bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109502162A CN109502162A (en) | 2019-03-22 |
| CN109502162B true CN109502162B (en) | 2024-09-06 |
Family
ID=65749310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811390395.5A Active CN109502162B (en) | 2018-11-21 | 2018-11-21 | One-way exhaust channel for vacuum compression bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109502162B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103868A1 (en) * | 2018-11-21 | 2020-05-28 | 中山市太力家庭用品制造有限公司 | One-way air outlet channel used for vacuum compression bag and vacuum compression bag having said one-way air outlet channel |
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| JP3005586U (en) * | 1994-02-16 | 1995-01-10 | 春夫 鈴木 | Synthetic resin compression bag |
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| CN206691705U (en) * | 2017-03-14 | 2017-12-01 | 中山市太力家庭用品制造有限公司 | A kind of compressed bag of smooth in exhaust |
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| GB955123A (en) * | 1960-12-07 | 1964-04-15 | Technipak Proprietary Ltd | Improvements in or relating to self sealing sachets or containers |
| FR1389888A (en) * | 1964-03-26 | 1965-02-19 | Sicedison Spa | Plastic bag having a filling opening and means for evacuating air during stacking |
| US5419638A (en) * | 1993-05-06 | 1995-05-30 | Jamison; Mark D. | Pressure sensitive gas valve for flexible pouch |
| JP2675748B2 (en) * | 1994-03-25 | 1997-11-12 | 株式会社ヤマモン | Storage bag for flexible goods |
| WO2004028922A2 (en) * | 2002-09-30 | 2004-04-08 | Jamison Mark D | Pressure relief valve for a flexible pouch |
| US7452132B2 (en) * | 2004-12-03 | 2008-11-18 | Wen-Chin Tang | Clothes storage bag |
| CN2844028Y (en) * | 2005-03-30 | 2006-12-06 | 石正兵 | Vacuum bag without pumping |
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| CN201030998Y (en) * | 2007-06-05 | 2008-03-05 | 潘斌 | Compression bag having sealing drag chain |
| CN201068275Y (en) * | 2007-06-21 | 2008-06-04 | 石正兵 | Sitting-pressing vacuum bag |
| CN201647372U (en) * | 2010-03-15 | 2010-11-24 | 叶常青 | Improved hand-rolled compressed vacuum bag |
| KR20130123803A (en) * | 2012-05-04 | 2013-11-13 | 노영신 | Sack for packing feed |
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| JP3005586U (en) * | 1994-02-16 | 1995-01-10 | 春夫 鈴木 | Synthetic resin compression bag |
| CN205131945U (en) * | 2015-08-25 | 2016-04-06 | 崔立权 | Three -dimensional vacuum compression bag of multiaspect that extrusion formula exempted from to bleed |
| CN206691705U (en) * | 2017-03-14 | 2017-12-01 | 中山市太力家庭用品制造有限公司 | A kind of compressed bag of smooth in exhaust |
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| CN109502162A (en) | 2019-03-22 |
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Address after: 528400 front block 2, No.40, Hubin North Road, Shiqi District, Zhongshan City, Guangdong Province Applicant after: Guangdong Taili Technology Group Co.,Ltd. Address before: 528400 front block 2, No.40, Hubin North Road, Shiqi District, Zhongshan City, Guangdong Province Applicant before: ZHONGSHAN TAILI HOUSEHOLD PRODUCTS MANUFACTURING Co.,Ltd. |
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