CN203525920U - Vacuum ejector - Google Patents
Vacuum ejector Download PDFInfo
- Publication number
- CN203525920U CN203525920U CN201320541981.1U CN201320541981U CN203525920U CN 203525920 U CN203525920 U CN 203525920U CN 201320541981 U CN201320541981 U CN 201320541981U CN 203525920 U CN203525920 U CN 203525920U
- Authority
- CN
- China
- Prior art keywords
- valve casing
- vacuum ejector
- valve
- valve body
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a vacuum ejector. The vacuum ejector comprises a valve casing, a valve seat and a valve body. The valve body is located in the valve casing. The valve seat is connected to the bottom of the valve casing. A fastening part is arranged in the middle of the outer side of the valve casing. A gas inlet is formed in the lower portion of the valve casing. The upper end and the lower end of the valve casing are of an open structure. The top of the valve casing is provided with a gas outlet. A seal ring is arranged on the upper portion of the valve casing. The upper portion of the valve body is of a cylinder structure. A plurality of large through holes are formed in the cylinder structure. The vacuum ejector has the advantages that multistage ejection is realized, the high suction capacity is generated through low gas consumption, and therefore energy sources are saved; environmental adaptability is high, and the explosion-proof grade is also high; by the adoption of the structural design of a multistage spray pipe, the multistage vacuum ejector is high in efficiency; moving parts do not exist, so that a lubricating agent is not needed, and extra maintenance cost is not needed either; abrasion of the vacuum ejector is very low, so that the service life of the vacuum ejector is long.
Description
Technical field
The utility model relates to a kind of vacuum ejector.
Background technology
Traditional vacuum ejector is that the tolerance of the Compressed Gas that need to utilize is larger, and power consumption is large, causes mass energy waste; Complex structure, Heavy Weight, takes up room larger; Movable part is more, needs lubricant, easily causes the phenomenons such as burn into wearing and tearing, and need to make regular check in use procedure.
Utility model content
The purpose of this utility model is to provide a kind of vacuum ejector, to overcome currently available technology above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A vacuum ejector, comprises valve casing, valve seat and valve body, and described valve body is positioned at valve casing, and described valve seat is connected to valve casing bottom; The middle part in described valve casing outside is provided with secure component, and described valve casing bottom is provided with air inlet, and the upper and lower end of described valve casing is open design, and the top of described valve casing is gas vent; The top of described valve seat is provided with sealing ring; Described valve body top is cylindrical structure, and described cylindrical structure is provided with some large through-holes; Described valve body lower portion is regular polygon cylinder, on each side of described regular polygon cylinder, is equipped with some groups of passages, on described every group of passage, is equipped with check valve; The outside of described regular polygon cylinder is provided with some circular dividing plates, on all the other the circular dividing plates except the circular dividing plate of the bottom, is evenly provided with some groups of jet pipe fixing holes, in described every group of jet pipe fixing hole, is all vertically penetrated with jet pipe; Described valve inner is provided with cavity, is vertically provided with some air transporting arrangements in described cavity.
Further, described air transporting arrangement outside is cylindrical, and air transporting arrangement inside is vertically provided with regular polygon through hole, is equipped with some and through hole exterior on each face of described regular polygon through hole.
Further, described passage communicates with the cavity of valve inner.
Further, an interstitial hole in the middle of one group of passage comprises and be positioned at this interstitial hole four holes around, described check valve is positioned at interstitial hole and covers all the other four holes.
Further, the upper and lower end of described jet pipe is equipped with opening.
1), multi-stage jet the beneficial effects of the utility model are:, with less air consumption, produce larger inspiratory capacity, save the energy; 2), environmental suitability is strong, explosive-proof grade is high; 3), adopt multi-stage jet tube structural design, make multi-stage vacuum injector there is good usefulness; 4), no-movable part, do not need lubricant and extra maintenance expense; 5), product wearing and tearing are minimum, service life is longer.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of a kind of vacuum ejector described in the utility model embodiment;
Fig. 2 is the structural representation one of valve body described in the utility model embodiment;
Fig. 3 is the structural representation two of valve body described in the utility model embodiment;
Fig. 4 is the sectional view of air transporting arrangement described in the utility model embodiment.
In figure:
1, valve casing; 2, valve body; 3, valve seat; 4, air inlet; 5, secure component; 6, large through-hole; 7, circular dividing plate; 8, jet pipe fixing hole; 9, jet pipe; 10, passage; 11, check valve; 12, air transporting arrangement; 13, sealing ring.
The specific embodiment
As Figure 1-4, a kind of vacuum ejector described in the utility model embodiment, comprises valve casing 1, valve seat 3 and valve body 2, and described valve body 2 is positioned at valve casing 1, and described valve seat 3 is connected to valve casing 1 bottom; The middle part in described valve casing 1 outside is provided with secure component 5, and described valve casing 1 bottom is provided with air inlet 4, and the upper and lower end of described valve casing 1 is open design, and the top of described valve casing 1 is gas vent; The top of described valve seat 3 is provided with sealing ring 13; Described valve body 2 tops are cylindrical structure, and described cylindrical structure is provided with some large through-holes 6; Described valve body 2 bottoms are regular polygon cylinder, on each side of described regular polygon cylinder, are equipped with some groups of passages 10, on described every group of passage 10, are equipped with check valve 11; The outside of described regular polygon cylinder is provided with some circular dividing plates 7, on all the other the circular dividing plates 7 except the circular dividing plate 7 of the bottom, is evenly provided with some groups of jet pipe fixing holes 8, the interior jet pipe 9 that is all vertically penetrated with of described every group of jet pipe fixing hole 8; Described valve body 2 inside are provided with cavity, are vertically provided with some air transporting arrangements 12 in described cavity.
Described air transporting arrangement 12 outsides are cylindrical, and air transporting arrangement 12 inside are vertically provided with regular polygon through hole, are equipped with some and through hole exterior on each face of described regular polygon through hole.Described passage 10 communicates with the cavity of valve body 2 inside.An interstitial hole in the middle of one group of passage 10 comprises and be positioned at this interstitial hole four holes around, described check valve 11 is positioned at interstitial hole and covers all the other four holes.The upper and lower end of described jet pipe 9 is equipped with opening.
Operation principle: compressed air enters valve casing 1 through air inlet 4, then arrives valve body 2 tops fast by jet pipe 9, enters large through-hole 6, finally from gas vent, flows out valve casing 1.The compressed air of rapid flow is constantly sucked away gas vent ambient air, and then siphon away away the air in valve body 2 internal cavities, make air pressure in cavity be less than the air pressure in the space that circular dividing plate 7 and valve casing 1 surround, check valve 11 is opened, and air flows into the cavity the inside in valve body 2.So circulation, finally makes Pressure Drop in space that circular dividing plate 7 and valve casing 1 surround to atmospheric pressure, forms certain vacuum degree.
Vacuum ejector can be divided into subsonic speed nozzle type, velocity of sound nozzle type and supersonic nozzle type, subsonic speed jet pipe and velocity of sound jet pipe are all shrink nozzles, and supersonic nozzle type must be first to shrink to expand afterwards shape jet pipe (being Laval nozzle), in order to obtain maximum inhalation flow or the highest suction inlet place pressure, the utility model is designed to supersonic nozzle type.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (5)
1. a vacuum ejector, comprises valve casing (1), valve seat (3) and valve body (2), and described valve body (2) is positioned at valve casing (1), and described valve seat (3) is connected to valve casing (1) bottom; It is characterized in that: the middle part in described valve casing (1) outside is provided with secure component (5), and described valve casing (1) bottom is provided with air inlet (4), and the upper and lower end of described valve casing (1) is open design, and the top of described valve casing (1) is gas vent; The top of described valve seat (3) is provided with sealing ring (13); Described valve body (2) top is cylindrical structure, and described cylindrical structure is provided with some large through-holes (6); Described valve body (2) bottom is regular polygon cylinder, is equipped with some groups of passages (10) on each side of described regular polygon cylinder, is equipped with check valve (11) on described every group of passage (10); The outside of described regular polygon cylinder is provided with some circular dividing plates (7), on all the other circular dividing plates (7) except the circular dividing plate (7) of the bottom, be evenly provided with some groups of jet pipe fixing holes (8), in described every group of jet pipe fixing hole (8), be all vertically penetrated with jet pipe (9); Described valve body (2) inside is provided with cavity, is vertically provided with some air transporting arrangements (12) in described cavity.
2. a kind of vacuum ejector according to claim 1, it is characterized in that: described air transporting arrangement (12) outside is for cylindrical, air transporting arrangement (12) inside is vertically provided with regular polygon through hole, is equipped with some and through hole exterior on each face of described regular polygon through hole.
3. a kind of vacuum ejector according to claim 2, is characterized in that: described passage (10) cavity inner with valve body (2) communicates.
4. a kind of vacuum ejector according to claim 3, is characterized in that: an interstitial hole in the middle of one group of passage (10) comprises and be positioned at this interstitial hole four holes around, described check valve (11) is positioned at interstitial hole and covers all the other four holes.
5. a kind of vacuum ejector according to claim 4, is characterized in that: the upper and lower end of described jet pipe (9) is equipped with opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541981.1U CN203525920U (en) | 2013-09-02 | 2013-09-02 | Vacuum ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541981.1U CN203525920U (en) | 2013-09-02 | 2013-09-02 | Vacuum ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203525920U true CN203525920U (en) | 2014-04-09 |
Family
ID=50412182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320541981.1U Expired - Lifetime CN203525920U (en) | 2013-09-02 | 2013-09-02 | Vacuum ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203525920U (en) |
-
2013
- 2013-09-02 CN CN201320541981.1U patent/CN203525920U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |