CN100523576C - Vacuum compression bag gas nozzle with improved structure - Google Patents
Vacuum compression bag gas nozzle with improved structure Download PDFInfo
- Publication number
- CN100523576C CN100523576C CNB2007100300561A CN200710030056A CN100523576C CN 100523576 C CN100523576 C CN 100523576C CN B2007100300561 A CNB2007100300561 A CN B2007100300561A CN 200710030056 A CN200710030056 A CN 200710030056A CN 100523576 C CN100523576 C CN 100523576C
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- exhaust passage
- pedestal
- gas nozzle
- overcoat
- vacuum compression
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Abstract
The invention discloses an improved structure of vacuum compressive bag air valve which comprises a valve seat, a sealing ring and an end cover. The valve seat comprises an inlet port and an outlet port and the sealing ring and the end cover are screwed at the outlet port respectively. The air valve is characterized in that the valve seat is constituted by an inner casing and an outer casing. The inner casing has an exhaust passage, the inlet end of the exhaust passage extends out of the outer casing bottom and forms the inlet port of the seat. The outlet port is arranged at the top opening of the outer casing. The inner wall of the exhaust passage is provided with a flow deflector which extends out of the inlet end of the exhaust passage which is also fixed with a ring. A piston packing is arranged at the outlet end of the exhaust passage of the inner casing and the piston packing is equipped with an inserted pivot with a drawing gear. The drawing gear of the inserted pivot passes through the ring and is blocked at the outside of the ring. The piston packing is arranged in the top part of the inner casing and seals the outlet end of the exhaust passage. The invention has the positive effects that such structure has good tightness, when air is exhausted, sufficient space is provided for air flow, thus bringing about satisfactory exhaust result.
Description
Technical field
The present invention relates to a kind of vacuum compression bag gas nozzle, especially relate to a kind of vacuum compression bag gas nozzle that improves structure, to improve the bleed effect and the sealing of bag.
Background technique
For the area that plum rain season is arranged, thick and heavy clothing and cotton-wadded quilt storage problem perplex people always, and vacuum compression bag has waterproof because of it, and protective actions such as mildew-resistant, protection against the tide are extensively utilized by people; Its structure such as Chinese utility model patent number: 200520005269.5; Name is called " vacuum compression bag gas nozzle ", notice of authorization day: on April 5th, 2006; This vacuum compression bag gas nozzle, comprise gas nozzle body and cork, the centre of gas nozzle body has a pore, gas nozzle body is provided with the suspension column of projection, suspension column is distributed in around the bleeder hole, the outside of gas nozzle body also is provided with movable film, and movable film is pegged graft by the coupling bar and the gas nozzle body that are positioned at the one side, and cork hangs on the gas nozzle body by the collar cover of one side.During use, at first transfer to cork, bleed from bleeder hole with extraction pump, because the pressure of gas nozzle body inboard is littler than outside pressure, movable film is opened automatically, the smooth and easy outflow of gas; When stopping to bleed, the inboard pressure of gas nozzle body is littler than outside pressure, and movable film is closed automatically.The vacuum compression bag gas nozzle of said structure has utilized bag medial and lateral pressure difference simply, and movable film is opened or closed automatically, to realize the effect of air extracting seal.But, the vacuum compression bag gas nozzle of this structure still has the following disadvantages: the bleeder hole on (1), the gas nozzle body is mainly by movable film sealing, and movable film is to utilize bag medial and lateral pressure difference to be arranged on the bleeder hole, if the bag after vacuumizing, run into bigger vibration external force, have break joint between movable film and the bleeder hole easily, cause bag to lose heart, therefore, its sealing is poor, causes waterproof, and mildew-resistant and moisture effect are not good; (2) bleed and be, the gas in the bag mainly is to rely on the extraction pump active force to extract out through bleeder hole, and therefore, the gas that is positioned at the vertical below of gas nozzle body bleeder hole in the bag is stressed bigger, and it is stressed less to be positioned at the gas of gas nozzle body bleeder hole one side in the bag; That is, when the gas nozzle body of this structure was bled to bag, it bled inhomogeneous, and gas fluidity is poor, caused the effect of bleeding undesirable, influenced the preservation of clothing; (3), the cork setting on the gas nozzle body, except that sealing was relatively low, its operation was also inconvenient; Moreover cork uses for a long time, has the gap between gas nozzle body cork mouth and the cork easily.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, and a kind of vacuum compression bag gas nozzle that improves structure is provided, it has bleeds effectively, and the sealing height effectively improves waterproof, the advantage of mildew-resistant and moisture effect.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of vacuum compression bag gas nozzle that improves structure, comprise pedestal, seal ring and end cap, pedestal has air intake and air outlet, the air outlet of pedestal is located respectively, and spiral has seal ring and end cap, it is characterized in that: described pedestal is made up of interior cover and overcoat, interior cover has the exhaust passage, the exhaust passage air inlet end of interior cover extends jacket bottom and constitutes the air intake of pedestal, the overcoat top open part is located in the air outlet of pedestal, the exhaust passage inwall is provided with guide plate, guide plate extends the exhaust passage air inlet end, also be fixed with an annulus in the described exhaust passage, the outlet side, exhaust passage of interior cover is provided with a piston pad, and piston pad is provided with the slotting axle of band dop, insert dop on the axle and pass annulus and holding, cover top and seal outlet side, described exhaust passage in piston pad places in the side of annulus near the exhaust passage air inlet end.During use, the end cap of at first outwarding winding, bleed from the pedestal air outlet with extraction pump, influenced than outside pressure is big by the pressure of bag inboard, the piston pad of the outlet side, exhaust passage of cover in the pedestal is opened, because the inwall of interior cover is provided with guide plate, guide plate extends the exhaust passage air inlet end, that is: guide plate extends the pedestal air intake, therefore, the gas in the bag is subjected to the extraction pump active force, goes into the pedestal exhaust passage along the guide plate oriented flow, discharge from the pedestal air outlet again, make the bleeding evenly of whole bag, gas fluidity good; When stopping to bleed, be subjected to the pressure of bag inboard than the little effect of outside pressure, piston pad is closed automatically, that is: piston pad with in the annulus that puts closely cooperate, be stable being sealed and matched, its good airproof performance.
The present invention can also adopt following technical measures to solve:
As further corrective measure, the rounded boss in top of described interior cover and overcoat is convenient to the mutual fit of inside and outside cover, and is improved its sealing effect each other.
Be convenient rotary manipulation to seal ring, described seal ring top is provided with the convex handgrip.
The round boss outer wall on described overcoat top is provided with outside thread, and the equal spiral of seal ring and end cap adopts above-mentioned being threaded on the round boss outer wall, promptly convenient for assembly, can improve its sealing again.
The invention has the beneficial effects as follows:
(1) vacuum compression bag gas nozzle of the present invention, its pedestal is made up of inside and outside cover, in the exhaust passage of cover be provided with the He Huan that cooperates with piston pad, and the inwall of interior cover also is provided with guide plate, this guide plate extends to the exhaust passage air inlet end that communicates with the bag inner chamber; When bag was bled, the gas in the bag was subjected to the extraction pump active force, goes into the pedestal exhaust passage along the guide plate oriented flow, discharged from the pedestal air outlet again, made the bleeding evenly of whole bag, gas fluidity good; When stopping to bleed, piston pad with in the annulus that puts closely cooperate, be stable being sealed and matched, its good airproof performance; Moreover the close drive fit of piston pad and annulus is not subject to vibrate the external force effect and has break joint, and the defective that causes bag to lose heart improves waterproof effectively, mildew-resistant and moistureproof effect.
(2) seal ring of the present invention, end cap are threaded with pedestal, and its sealing is higher relatively, and are convenient to the operation assembling.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is Fig. 1 other direction structural representation;
Fig. 3 is the sectional view of pedestal among the present invention.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Consult Fig. 1 to shown in Figure 3, a kind of vacuum compression bag gas nozzle that improves structure, comprise pedestal 1, seal ring 3 and end cap 4, pedestal 1 has air intake 8 and air outlet 9, there are seal ring 3 and end cap 4 in 9 places, air outlet of pedestal 1 spiral respectively, seal ring 3 tops are provided with convex handgrip 16, described pedestal 1 is made up of interior cover 5 and overcoat 6, the rounded boss in top of interior cover 5 and overcoat 6, the round boss outer wall on described overcoat 6 tops is provided with outside thread, seal ring 3 and end cap 4 equal spirals are on the round boss outer wall, interior cover 5 has exhaust passage 10, exhaust passage 10 air inlet ends 15 of interior cover 5 extend overcoat 6 bottoms and constitute the air intake 8 of pedestal 1, the overcoat top open part is located in the air outlet 9 of pedestal 1, exhaust passage 10 inwalls are provided with guide plate 7, guide plate 7 extends exhaust passage 10 air inlet ends 15, also be fixed with an annulus 11 in the described exhaust passage 10,10 outlet sides 14, exhaust passage of interior cover 5 are provided with a piston pad 2, piston pad 2 is provided with the slotting axle 13 of band dop 12, insert dop 12 on the axle 13 and pass annulus 11 and holding, cover 5 tops and seal 10 outlet sides 14, described exhaust passage in piston pad 2 places in the side of annulus 11 near exhaust passage air inlet ends 15.
Working principle: when bleeding, the end cap of at first outwarding winding, bleed from pedestal 1 air outlet 9 with extraction pump, influenced than outside pressure is big by the pressure of bag inboard, the piston pad 2 of 10 outlet sides 14, exhaust passage of cover 5 in the pedestal 1 is opened, because the inwall of interior cover 5 is provided with guide plate 7, guide plate 7 extends exhaust passage 10 air inlet ends 15, that is: guide plate 7 extends pedestal 1 air intake 8, therefore, the gas in the bag is subjected to the extraction pump active force, goes into pedestal 1 exhaust passage 10 along guide plate 7 oriented flows, discharge from pedestal 1 air outlet 9 again, make bleeding evenly of whole bag, gas fluidity is good; When stopping to bleed, be subjected to the pressure of bag inboard than the little effect of outside pressure, piston pad is closed automatically, that is: the annulus 11 on piston pad 2 and the interior cover 5 closely cooperates, and is stable being sealed and matched, its good airproof performance.
Above-described specific embodiment only is preferred embodiment of the present invention, and the equivalent arrangements of being done according to the present patent application claim all should be technology of the present invention and contains such as.
Claims (4)
1. vacuum compression bag gas nozzle that improves structure, it is characterized in that: comprise pedestal (1), seal ring (3) and end cap (4), pedestal (1) has air intake (8) and air outlet (9), the air outlet (9) of pedestal (1) is located respectively, and spiral has seal ring (3) and end cap (4), described pedestal (1) is made up of interior cover (5) and overcoat (6), interior cover (5) has exhaust passage (10), exhaust passage (10) air inlet end (15) of interior cover (5) extends overcoat (6) bottom and constitutes the air intake (8) of pedestal (1), the overcoat top open part is located in the air outlet (9) of pedestal (1), exhaust passage (10) inwall is provided with guide plate (7), guide plate (7) extends exhaust passage (10) air inlet end (15), also be fixed with an annulus (11) in the described exhaust passage (10), the outlet side, exhaust passage (10) (14) of interior cover (5) is provided with a piston pad (2), piston pad (2) is provided with the slotting axle (13) of band dop (12), insert dop (12) on the axle (13) and pass annulus (11) and holding in the side of annulus (11) near exhaust passage air inlet end (15), piston pad (2) places interior cover (5) top and seals outlet side, described exhaust passage (14).
2. according to the vacuum compression bag gas nozzle of the described improvement structure of claim 1, it is characterized in that: the rounded boss in top of cover (5) and overcoat (6) in described.
3. according to the vacuum compression bag gas nozzle of the described improvement structure of claim 1, it is characterized in that: described seal ring (3) top is provided with convex handgrip (16).
4. according to the vacuum compression bag gas nozzle of the described improvement structure of claim 1, it is characterized in that: the round boss outer wall on described overcoat (6) top is provided with outside thread, and the equal spiral of seal ring (3) and end cap (4) is on the round boss outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100300561A CN100523576C (en) | 2007-09-04 | 2007-09-04 | Vacuum compression bag gas nozzle with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100300561A CN100523576C (en) | 2007-09-04 | 2007-09-04 | Vacuum compression bag gas nozzle with improved structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101158417A CN101158417A (en) | 2008-04-09 |
| CN100523576C true CN100523576C (en) | 2009-08-05 |
Family
ID=39306602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100300561A Expired - Fee Related CN100523576C (en) | 2007-09-04 | 2007-09-04 | Vacuum compression bag gas nozzle with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100523576C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9989159B2 (en) * | 2014-05-01 | 2018-06-05 | Fisher Controls International Llc | Vent assembly and method for a digital valve positioner |
| CN107701770A (en) * | 2017-09-26 | 2018-02-16 | 东莞虎邦五金塑胶制品有限公司 | Convenience quickly fills discouraged wind nozzle |
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2007
- 2007-09-04 CN CNB2007100300561A patent/CN100523576C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101158417A (en) | 2008-04-09 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20120904 |