CN216784351U - Vacuum fresh-keeping sealing bag with improved air extraction valve - Google Patents
Vacuum fresh-keeping sealing bag with improved air extraction valve Download PDFInfo
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- CN216784351U CN216784351U CN202220318829.6U CN202220318829U CN216784351U CN 216784351 U CN216784351 U CN 216784351U CN 202220318829 U CN202220318829 U CN 202220318829U CN 216784351 U CN216784351 U CN 216784351U
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- air extraction
- extraction
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Abstract
The utility model discloses a vacuum fresh-keeping sealing bag of an improved air extraction valve, wherein the air extraction valve comprises a valve block, a valve seat, a valve bottom cover and a valve top cover, the middle part of the valve seat is provided with an upwards-protruding top cover mounting table, the inner side surface of the top cover mounting table is provided with a downwards-protruding bottom cover mounting table, the middle part of the valve seat is provided with a lower air extraction hole penetrating through the valve seat, the valve top cover is arranged on the top cover mounting table, the middle part of the valve top cover is provided with an upper air extraction hole penetrating through the valve top cover, the valve bottom cover is arranged on the bottom cover mounting table, a lower air extraction gap is arranged between the valve bottom cover and the valve seat, the valve block is arranged between the valve top cover and the valve seat, the valve block is movably blocked and matched with the lower air extraction hole, and the upper air extraction gap, the lower air extraction hole and the lower air extraction gap are sequentially communicated to form a narrow and sinuous air extraction channel. The structure is simple, the cost is low, the yield is high, the automatic production is easy to realize, and the service life is long.
Description
Technical Field
The utility model relates to the technical field of food preservation, in particular to a vacuum preservation sealing bag with an improved air extraction valve.
Background
The vacuum packaging is the most common mode in food preservation, air in a packaging bag is pumped out, so that food is isolated from the air, and the purpose of preservation is achieved; therefore, the air extraction valve is a core component of the vacuum packaging bag which is recycled, in the prior art, the air extraction valve is formed by clamping a rubber bag membrane by an upper rubber sheet and a lower rubber sheet, and then a soft rubber valve plate is arranged at a central hole to realize the functions of air extraction and sealing; or a soft rubber valve plate is simply arranged on the plastic valve seat. Because the soft rubber valve plate is exposed outside and is easy to be damaged, and the sealing surface is not provided with an air filtering mechanism, the sealing performance is easy to weaken or lose efficacy due to the fact that dust in food enters the sealing surface in the actual use process, and the service life of the valve plate is short, and therefore improvement is needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a vacuum fresh-keeping sealing bag with an improved air extraction valve, which has the advantages of low cost, high yield, easiness in realization of automatic production, simple structure and long service life.
In order to achieve the purpose, the utility model adopts the technical scheme that: a vacuum fresh-keeping sealing bag for improving an air extracting valve comprises a bag body, the air extracting valve and a sealing zipper, wherein an air extracting opening is formed in one side face of the bag body, the air extracting valve penetrates through the air extracting opening and is fixed on the inner surface of the bag body, the sealing zipper is arranged at the bag opening of the bag body, the air extracting valve comprises a valve block, a valve seat, a valve bottom cover and a valve top cover, an upward-protruding top cover mounting table is arranged in the middle of the valve seat and penetrates through the air extracting opening to protrude out of the bag body, the edge of the top surface of the valve seat is fixedly adhered to the inner surface of the bag body, a downward-protruding bottom cover mounting table is arranged on the inner side face of the top cover mounting table, a lower air extracting hole penetrating through the valve seat is formed in the middle of the valve seat, the valve top cover is arranged on the top cover mounting table, an upper air extracting hole penetrating through the valve top cover is formed in the middle of the valve top cover, the valve bottom cover is arranged on the bottom cover mounting table, a lower air extracting gap is formed between the valve bottom cover and the valve seat, an upper air exhaust gap is arranged between the valve block and the valve top cover and between the valve block and the valve seat, the valve block is matched with the lower air exhaust hole in a movable blocking mode, and the upper air exhaust hole, the upper air exhaust gap, the lower air exhaust hole and the lower air exhaust gap are sequentially communicated to form a narrow and winding air exhaust channel.
In a further technical scheme, the inner side surface of the bottom cover mounting platform is provided with an upwards convex valve plate mounting platform, an annular valve plate mounting groove is formed between the valve plate mounting platform and the top cover mounting platform, and the lower air suction hole is formed in the middle of the valve plate mounting platform and penetrates through the valve seat.
In the further technical scheme, the valve block is soft sizing material, and the bottom surface edge of valve block is provided with bellied annular installation department downwards, and annular installation department is inserted and is located the valve block mounting groove, and annular installation department is provided with a plurality of breach of bleeding along the circumferencial direction interval, and the gap of bleeding is formed with the valve block to the breach of bleeding, and the middle part of the bottom surface of valve block is protruding downwards to have a sealed head, sealed head and the cooperation of aspirating hole activity jam down.
In a further technical scheme, the valve block mounting table is provided with a plurality of convex ribs along the circumferential direction, a groove is formed between every two adjacent convex ribs, the convex ribs are fixedly connected with the valve bottom cover, and the grooves are communicated with the lower air exhaust gap.
In a further technical scheme, the lower air exhaust hole is a conical hole, the upper edge diameter of the lower air exhaust hole is larger than the lower edge diameter of the lower air exhaust hole, the sealing head is a conical head, the upper edge diameter of the sealing head is larger than or equal to the upper edge diameter of the lower air exhaust hole, and the lower edge diameter of the sealing head is smaller than the upper diameter of the sealing head, so that the sealing head is tightly attached to the inner wall of the lower air exhaust hole.
After adopting the structure, compared with the prior art, the utility model has the advantages that:
1. the valve plate is arranged between the valve top cover and the valve seat, the valve top cover can protect the valve plate, the valve plate does not leak outside, the valve plate is prevented from being damaged, the service life of the air extraction valve is prolonged, and the valve plate can resist being pushed and pulled and extruded by external force so as not to leak air;
2. according to the utility model, air in the bag body is pumped out through the air pumping channel, the air pumping channel is narrow and winding, the passing air can be filtered, powder is prevented from entering a sealing surface between the valve plate and the valve seat, and the vacuum fresh-keeping sealing bag can package articles rich in powder impurities and ensure the sealing property of the articles;
3. the top surface of the valve top cover is flat and smooth, the center of the valve top cover is provided with the air exhaust hole, and the valve top cover can adapt to air exhaust joints of various vacuum air extractors on the market;
4. the edge of the top surface of the valve seat is stuck and fixed on the inner surface of the bag body, so that the valve seat is suitable for mechanical mass production, the production efficiency is high, the yield is high, and the labor cost is reduced.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the structure of the air extraction valve of the present invention mounted on a vacuum freshness protection package;
FIG. 2 is a cross-sectional view of the suction valve of the present invention as sealed;
FIG. 3 is an enlarged view of section A of FIG. 2 of the present invention;
FIG. 4 is a cross-sectional view of the extraction valve of the present invention during extraction;
FIG. 5 is an enlarged view of section B of FIG. 4 in accordance with the present invention;
fig. 6 is an exploded view of the suction valve of the present invention.
In the figure:
1, a bag body;
2, an air suction valve, a 21 valve plate, a 211 annular mounting part, 212 air suction notches, 213 sealing heads, 22 valve seats, 221 top cover mounting tables, 222 bottom cover mounting tables, 223 valve plate mounting tables, 225 lower air suction holes, 226 convex ribs, 227 grooves, 23 valve bottom covers, 24 valve top covers, 241 upper air suction holes, 25 lower air suction gaps and 26 upper air suction gaps;
3 sealing the zipper.
Detailed Description
The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.
A vacuum fresh-keeping sealing bag with an improved air extracting valve is disclosed, as shown in figures 1 to 6, comprising a bag body 1, an air extracting valve 2 and a sealing zipper 3, wherein an air extracting opening is arranged on one side surface of the bag body 1, the air extracting valve 2 is fixed on the inner surface of the bag body 1 through the air extracting opening, the sealing zipper 3 is arranged at the bag opening of the bag body 1, the air extracting valve 2 comprises a valve sheet 21, a valve seat 22, a valve bottom cover 23 and a valve top cover 24, an upward convex top cover mounting platform 221 is arranged at the middle part of the valve seat 22, the top cover mounting platform 221 passes through the air extracting opening and protrudes out of the bag body 1, the top surface edge of the valve seat 22 is adhered and fixed on the inner surface of the bag body 1, a downward convex bottom cover mounting platform 222 is arranged at the inner side surface of the top cover mounting platform 221, a lower air extracting hole 225 penetrating through the valve seat 22 is arranged at the middle part of the valve seat 22, the valve top cover 24 is covered on the top cover mounting platform 221, an upper air extracting hole 241 penetrating through the valve top cover 24 is arranged at the middle part of the valve top cover 24, the valve bottom cover 23 is covered on the bottom cover mounting table 222, a lower air exhaust gap 25 is arranged between the valve bottom cover 23 and the valve seat 22, the valve plate 21 is mounted between the valve top cover 24 and the valve seat 22, an upper air exhaust gap 26 is arranged between the valve plate 21 and the valve top cover 24 and between the valve seat 22, the valve plate 21 is movably matched with the lower air exhaust hole 225 in a blocking manner, and the upper air exhaust hole 241, the upper air exhaust gap 26, the lower air exhaust hole 225 and the lower air exhaust gap 25 are sequentially communicated to form a narrow and winding air exhaust channel.
The valve plate 21 of the air extracting valve 2 of the traditional vacuum fresh-keeping sealing bag is exposed outside and is easy to be damaged, and the sealing surface has no air filtering mechanism, but the valve plate 21 of the utility model is arranged between the valve top cover 24 and the valve seat 22, the valve top cover 24 can protect the valve plate 21, the valve plate 21 is not exposed outside, the valve plate 21 is prevented from being damaged, the service life of the air extracting valve 2 is prolonged, and the valve plate 21 which is caused by the external force action can be prevented from being pushed, pulled and extruded so as not to leak air; as shown in fig. 4 and 5, the direction of the arrow is the air flow direction during air extraction, the air in the bag body 1 is extracted through the air extraction channel, the air extraction channel is narrow and winding, the passing air can be filtered, the powder is prevented from entering the sealing surface between the valve plate 21 and the valve seat 22, and the vacuum freshness protection sealing bag can package articles rich in powder impurities and ensure the sealing performance; the top surface of the valve top cover 24 is flat and smooth, and the center of the valve top cover is provided with an upper air suction hole 241 which can be suitable for air suction joints of various vacuum air extractors on the market; the edge of the top surface of the valve seat 22 is adhered and fixed on the inner surface of the bag body 1, so that the bag is suitable for mechanical mass production, the production efficiency is high, the yield is high, and the labor cost is reduced.
Specifically, the inner side surface of the bottom cover mounting table 222 is provided with a valve sheet mounting table 223 protruding upwards, an annular valve sheet mounting groove is formed between the valve sheet mounting table 223 and the top cover mounting table 221, and the lower suction hole 225 is arranged in the middle of the valve sheet mounting table 223 and penetrates through the valve seat 22. The contact area between the raised valve plate mounting table 223 and the valve plate 21 is larger, and the sealing effect is better.
Specifically, the valve plate 21 is made of soft rubber, an annular mounting portion 211 protruding downward is arranged on the edge of the bottom surface of the valve plate 21, the annular mounting portion 211 is inserted into the valve plate mounting groove, a plurality of air exhaust notches 212 are arranged at intervals in the circumferential direction on the annular mounting portion 211, the air exhaust notches 212 and the valve plate 21 form an upper air exhaust gap 26, a sealing head 213 protrudes downward from the middle of the bottom surface of the valve plate 21, and the sealing head 213 is movably matched with the lower air exhaust hole 225 in a blocking manner. When air is extracted, air in the bag body 1 enters the lower air extraction hole 225 from the lower air extraction gap 25, then enters the upper air extraction gap 26 from the lower air extraction hole 225 through the plurality of air extraction gaps 212, and finally enters the upper air extraction hole 241 from the upper air extraction gap 26 to be discharged, and the air extraction gaps 212 play a certain role in air filtration, so that the filtering effect is better.
Specifically, valve block mount table 223 is provided with a plurality of protruding muscle 226 along the circumferencial direction, has seted up recess 227 between two adjacent protruding muscle 226, protruding muscle 226 and valve bottom cover 23 fixed connection, recess 227 and the lower gap 25 intercommunication of bleeding.
When bleeding, the article of splendid attire is easy will descend the aspirating hole 225 to block up, leads to bleeding the failure, and aspirating hole 225 under valve bottom 23 then protects prevents that it from taking place to block up when bleeding, and the air gets into aspirating hole 225 down through bleeding gap 25 down, and the reliability is higher, protruding muscle 226 and valve bottom 23 fixed connection, and the air then circulates through recess 227.
Specifically, the lower pumping hole 225 is a tapered hole, the upper edge diameter of the lower pumping hole 225 is greater than the lower edge diameter of the lower pumping hole 225, the sealing head 213 is a tapered head, the upper edge diameter of the sealing head 213 is greater than or equal to the upper edge diameter of the lower pumping hole 225, and the lower edge diameter of the sealing head 213 is less than the upper edge diameter of the sealing head 213, so that the sealing head 213 is tightly attached to the inner wall of the lower pumping hole 225. The lower pumping hole 225 and the sealing head 213 are both tapered structures, as shown in fig. 2 and 3, the sealing effect is better.
The working principle of the utility model is as follows:
when air is pumped, the sealing zipper 3 is tightened and closed, and under the action of air pressure, the sealing head 213 of the valve plate 21 moves outwards and is separated from the lower air pumping hole 225, as shown in fig. 4 and 5, air in the bag body 1 flows through the groove 227 from the lower air pumping gap 25 into the lower air pumping hole 225, then flows through the groove 227 into the upper air pumping gap 26 from the lower air pumping hole 225, and then flows through the air pumping gap 212 into the upper air pumping hole 241 through the upper air pumping gap 26 and is discharged;
after the air suction is completed, as shown in fig. 2 and 3, under the action of the negative pressure, the sealing head 213 of the valve plate 21 moves toward the lower air suction hole 225 and blocks the lower air suction hole 225, thereby blocking the air suction passage;
when the article in the bag body 1 needs to be taken, the sealing zipper 3 is opened.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (5)
1. The utility model provides an improve vacuum fresh-keeping sealing bag of bleeder valve, includes the bag body (1), bleeder valve (2) and sealed zip fastener (3), and the extraction opening has been seted up to a side of the bag body (1), and bleeder valve (2) pass the extraction opening and are fixed in the internal surface of the bag body (1), and sealed zip fastener (3) set up in the sack department of the bag body (1), its characterized in that: the extraction valve (2) comprises a valve plate (21), a valve seat (22), a valve bottom cover (23) and a valve top cover (24), wherein the middle part of the valve seat (22) is provided with a top cover mounting platform (221) which protrudes upwards, the top cover mounting platform (221) protrudes out of the bag body (1) through an extraction opening, the top surface edge of the valve seat (22) is fixedly adhered to the inner surface of the bag body (1), the inner side surface of the top cover mounting platform (221) is provided with a bottom cover mounting platform (222) which protrudes downwards, the middle part of the valve seat (22) is provided with a lower extraction hole (225) which penetrates through the valve seat (22), the valve top cover (24) is covered on the top cover mounting platform (221), the middle part of the valve top cover (24) is provided with an upper extraction hole (241) which penetrates through the valve top cover (24), the valve bottom cover (23) is covered on the bottom cover mounting platform (222), a lower extraction gap (25) is arranged between the valve bottom cover (23) and the valve seat (22), the valve plate (21) is arranged between the valve top cover (24) and the valve seat (22), an upper air exhaust gap (26) is arranged between the valve plate (21) and the valve top cover (24) and the valve seat (22), the valve plate (21) is movably matched with the lower air exhaust hole (225) in a blocking manner, and the upper air exhaust hole (241), the upper air exhaust gap (26), the lower air exhaust hole (225) and the lower air exhaust gap (25) are sequentially communicated to form a narrow and winding air exhaust channel.
2. The vacuum freshness protection package with the improved air extraction valve according to claim 1, wherein: the medial surface of bottom installation platform (222) is provided with bellied valve block mount table (223) that makes progress, valve block mount table (223) with an annular valve block mounting groove has between top cap mount table (221), bleeder vent (225) set up in the middle part of valve block mount table (223) and run through down disk seat (22).
3. The vacuum freshness protection package with the improved air extraction valve according to claim 2, wherein: valve block (21) are soft sizing material, and the bottom surface edge of valve block (21) is provided with bellied annular installation department (211) downwards, and annular installation department (211) are inserted and are located the valve block mounting groove, annular installation department (211) are provided with a plurality of along the circumferencial direction interval and bleed breach (212), and bleed breach (212) and valve block (21) form go up gap (26) of bleeding, the middle part of the bottom surface of valve block (21) is protruding downwards has one sealed head (213), sealed head (213) with the cooperation is blockked up in lower bleed hole (225) activity.
4. The vacuum freshness protection package with the improved air extraction valve according to claim 2, wherein: valve block mount table (223) are provided with a plurality of protruding muscle (226) along the circumferencial direction, set up between two adjacent protruding muscle (226) recess (227) that have, protruding muscle (226) with valve bottom (23) fixed connection, recess (227) with lower gap (25) intercommunication of bleeding.
5. The vacuum freshness protection package with the improved air extraction valve according to claim 3, wherein: the lower air exhaust hole (225) is a taper hole, the diameter of the upper edge of the lower air exhaust hole (225) is larger than that of the lower edge of the lower air exhaust hole (225), the sealing head (213) is a taper head, the diameter of the upper portion of the sealing head (213) is larger than or equal to that of the upper edge of the lower air exhaust hole (225), and the diameter of the lower edge of the sealing head (213) is smaller than that of the upper portion of the sealing head (213), so that the sealing head (213) is tightly attached to the inner wall of the lower air exhaust hole (225).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220318829.6U CN216784351U (en) | 2022-02-17 | 2022-02-17 | Vacuum fresh-keeping sealing bag with improved air extraction valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220318829.6U CN216784351U (en) | 2022-02-17 | 2022-02-17 | Vacuum fresh-keeping sealing bag with improved air extraction valve |
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| Publication Number | Publication Date |
|---|---|
| CN216784351U true CN216784351U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220318829.6U Active CN216784351U (en) | 2022-02-17 | 2022-02-17 | Vacuum fresh-keeping sealing bag with improved air extraction valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115384933A (en) * | 2022-09-28 | 2022-11-25 | 深圳市吉特包装制品有限公司 | Air valve and vacuum packaging bag |
-
2022
- 2022-02-17 CN CN202220318829.6U patent/CN216784351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115384933A (en) * | 2022-09-28 | 2022-11-25 | 深圳市吉特包装制品有限公司 | Air valve and vacuum packaging bag |
| CN115384933B (en) * | 2022-09-28 | 2023-07-28 | 深圳市吉特包装制品有限公司 | Air valve and vacuum packaging bag |
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