CN203797076U - Air suction valve - Google Patents
Air suction valve Download PDFInfo
- Publication number
- CN203797076U CN203797076U CN201420171282.7U CN201420171282U CN203797076U CN 203797076 U CN203797076 U CN 203797076U CN 201420171282 U CN201420171282 U CN 201420171282U CN 203797076 U CN203797076 U CN 203797076U
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- China
- Prior art keywords
- valve
- air
- air inlet
- flap seat
- flap
- 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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- 238000007789 sealing Methods 0.000 claims description 11
- 238000005336 cracking Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses an air suction valve capable of reducing the difference between internal and external pressures of a pipeline and damaging a vacuum environment in the pipeline so as to prevent the pipeline and other pieces of equipment from sinking and cracking, thereby improving the operating safety of a pipeline system. The air suction valve structurally comprises a valve body, a valve cover, a valve flap seat, valve flaps, a guide rod and the like, wherein an air inlet groove, an air inlet hole, an air inlet chamber, an air inlet channel and an air outlet chamber which are communicated are formed in the valve body. The valve flaps which are arranged on the valve flap seat hermetically contact the air inlet hole by virtue of the dead weight of the valve flap seat, so that the air inlet hole can be hermetically closed. When the internal pressure of the pipeline system is lower than the external pressure and reaches a certain value, the valve flaps on the valve flap seat are opened under the pushing action of the external air pressure, so that the air inlet hole is automatically opened. When the pressure difference is decreased, the valve flaps return by virtue of the dead weight of the valve flap seat, and the air inlet hole is hermetically closed again, so that the improved air suction valve has the advantages of simple structure, reliable operation, attractive appearance and the like, more choices are provided for consumers, and market demands are met.
Description
Technical field
The utility model relates to a kind of valve mechanism for pipe drainage system, specifically refers to the air-breathing Aspirating valves with the inside and outside pressure reduction of equalizing main automatically.
Background technique
In pipe-line system running, due to the unexpected operation of system or stop, often causing in pipeline and produce negative pressure or vacuum, will make like this pipeline and other equipment occur flat, the recessed phenomenon such as split.In order to prevent that the generation of this phenomenon is with the use safety of protection equipment, conventionally need in pipe-line system, add an Aspirating valves that can reduce pipeline inside and outside differential pressure, destroy vacuum environment in pipeline.At present, the Aspirating valves structure of selling on market and using is various, " a kind of one-way sucting valve " that as disclosed China Patent No. be 02221128.4 " Aspirating valves " and disclosed China Patent No., be 201120461958.2 is all the Aspirating valves structure of comparatively commonly using, these Aspirating valvess are arranged in pipe-line system, for the safe operation of pipeline and other equipment provides great help.Yet, along with the development of whole valve pipe technology and the continuous expansion of valve consumption market, existing Aspirating valves structure exists that profile is ugly mostly, complex structural designs, flap open and close easily stuck, use the defects such as reliable not, consumers in general also urgently wish that valve manufacturer can release the Aspirating valvess with different structure and the form of keying more, the more choice of Consumer to be provided and to meet market demand.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art and a kind of Aspirating valves of simple in structure, reliable, beautiful shape is provided.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of Aspirating valves, comprise valve body, valve gap, flap seat and flap, described valve body top is provided with the valve gap that sealing is installed, and between valve gap and valve body, forms air-inlet cavity, valve body bottom is provided with outlet chamber, and body wall is provided with the gas-entered passageway that is communicated with respectively air-inlet cavity and outlet chamber; Described valve body middle part is provided with air inlet duct, between this air inlet duct and air-inlet cavity, is provided with inlet hole; In described air-inlet cavity, be provided with flap seat and flap that sealing opens and closes inlet hole.
In described air-inlet cavity, be provided with the guide rod that upper end is vertically arranged on the unsettled setting of valve gap upper and lower end, described flap seat upper-end surface is provided with lower end of the guide rod active mounting and forms the guide rod hole that flap seat moves up and down.
Described flap seat lower end is umbrella, outside the flap seat lower end of umbrella, is arranged with annular groove, and described flap is inlaid in annular groove, and this flap lower end surface is done sealing with inlet hole and contacted.
Described inlet hole is arranged with a circle cone boss outward, and described flap lower end surface sealing contact is on this cone boss.
Described valve gap outer surface is provided with hex wrench mouth.
Described air inlet duct is " U " type groove.
Compared with prior art, the utility model has mainly designed a air inlet duct that has, inlet hole, air-inlet cavity, the Aspirating valves structure that the gas such as gas-entered passageway and outlet chamber is interconnected, it is contacting the flap sealing being arranged on flap seat on inlet hole from gravity by flap seat mainly, thereby realize the hermetically closing of inlet hole, pressure in pipe-line system is lower than external pressure and while reaching certain value, by external pressure, back down the flap on flap seat, thereby automatically open inlet hole, after pressure reduction reduces, flap by flap seat from gravity reduction, and make inlet hole again realize hermetically closing, therefore the Aspirating valves after improving has simple in structure, reliable, the advantages such as beautiful shape, also be provide more choices chance and meet market demand of Consumer.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the stereogram of Fig. 1.
Fig. 3 is the sectional structure schematic diagram of valve gap.
Fig. 4 is the sectional structure schematic diagram of flap seat.
Embodiment
To the utility model embodiment, elaborate again by above-mentioned accompanying drawing below.
As shown in Figures 1 to 4,1. valve body, 2. outlet chamber, 3. air inlet duct, 4. cone boss, 5. air-inlet cavity, 6. guide rod, 7. valve gap, 8. guide rod hole, 9. flap seat, 10. flap, 11. inlet holes, 12. gas-entered passageways, 13. hex wrench mouths, 14. tapped holes, 15. annular grooves.
Aspirating valves, as shown in Figure 1 and Figure 2, belong to a kind of valve mechanism being applied in pipe drainage system, it is mainly used in reducing pipeline inside and outside differential pressure, destroys the vacuum environment in pipeline, thereby prevent that flat, the recessed phenomenon such as split from appearring in pipeline in pipe-line system and other equipment, improves the security of operation of pipe-line system.
Described Aspirating valves is to consist of valve body 1, valve gap 7, flap seat 9, flap 10 and guide rod 6 etc., valve gap 7 is connected to valve body 1 top by engage thread, "O"-ring is set between valve gap 7 and valve body 1 to strengthen connection sealing between the two, outer surface at valve gap 7 is also provided with hex wrench mouth 13 as shown in Figure 2 and Figure 3, so that the relative valve body 1 of valve gap 7 screws or opens, internal surface at valve gap 7 is provided with a guide rod 6, and this guide rod upper end is threaded connection tapped hole 14 interior, the unsettled settings in lower end that mode is vertically arranged on valve gap 7.
Described valve body 1 arranges according to vertical state in use, between this valve body 1 top and valve gap 7, is formed with air-inlet cavity 5; Valve body 1 bottom is provided with outlet chamber 2, and outlet chamber is connected pipeline by being arranged on the outside thread of valve body 1 bottom; Valve body 1 sidewall is provided with the gas-entered passageway 12 that is communicated with respectively air-inlet cavity 5 and outlet chamber 2, thereby at valve body 1 middle part of adjacent gas-entered passageway one side, be also provided with the air inlet duct 3 that is " U " type shape to the cross section of recessed formation in valve body, therefore the upper and lower cell wall by this air inlet duct is separated, air-inlet cavity 5 separate between the upper and lower in valve body 1 and outlet chamber 2 have also been formed respectively.
The upper cell wall of described air inlet duct 3 is provided with inlet hole 11, by inlet hole, can be communicated with respectively air-inlet cavity 5 and air inlet duct 3, in the periphery of inlet hole 11, is also provided with the cone boss 4 that a circle projects upwards.
Described flap seat 9 and flap 10 are arranged in air-inlet cavity 5, as shown in Figure 4, its upper-end surface is provided with guide rod hole 8 to this flap seat 9, and active mounting is made in guide rod 6 lower ends on this guide rod hole and valve gap 7, thereby make flap seat 9 to form guiding by guide rod 6, and move up and down along guide rod; Described flap seat 9 lower ends are umbrella, outside the flap seat lower end of umbrella, be arranged with annular groove 15, in annular groove, be embedded with flap 10, this flap lower end surface contacts with the cone boss 4 formation sealings on inlet hole 11 from gravity by flap seat 9, and plays the effect of closing inlet hole 11.
Working method of the present utility model is: the pressure in pipe-line system, lower than external pressure and while reaching certain value, backs down the flap 10 on flap seat 9 by external pressure, thereby automatically opens inlet hole 11 with the inside and outside pressure reduction of balance; After pressure reduction reduces, flap 10 by flap seat 9 from gravity reduction, and make inlet hole 11 again realize hermetically closing.
The above is only better embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (6)
1. an Aspirating valves, comprise valve body (1), valve gap (7), flap seat (9) and flap (10), it is characterized in that described valve body (1) top is provided with the valve gap (7) that sealing is installed, between valve gap and valve body (1), form air-inlet cavity (5), valve body (1) bottom is provided with outlet chamber (2), and valve body (1) sidewall is provided with the gas-entered passageway (12) that is communicated with respectively air-inlet cavity (5) and outlet chamber (2); Described valve body (1) middle part is provided with air inlet duct (3), is provided with inlet hole (11) between this air inlet duct and air-inlet cavity (5); In described air-inlet cavity (5), be provided with flap seat (9) and flap (10) that sealing opens and closes inlet hole.
2. Aspirating valves according to claim 1, it is characterized in that being provided with the guide rod (6) that upper end is vertically arranged on the unsettled setting of valve gap (7) upper and lower end in described air-inlet cavity (5), described flap seat (9) upper-end surface is provided with lower end of the guide rod active mounting and forms the guide rod hole (8) that flap seat (9) moves up and down.
3. Aspirating valves according to claim 1, it is characterized in that described flap seat (9) lower end is umbrella, outside the flap seat lower end of umbrella, be arranged with annular groove (15), described flap (10) is inlaid in annular groove (15), and this flap (10) lower end surface is done sealing with inlet hole (11) and contacted.
4. according to the Aspirating valves described in claim 1 or 3, it is characterized in that the outer circle cone boss (4) that is arranged with of described inlet hole (11), the sealing contact of described flap (10) lower end surface is on this cone boss (4).
5. Aspirating valves according to claim 1, is characterized in that described valve gap (7) outer surface is provided with hex wrench mouth (13).
6. Aspirating valves according to claim 1, is characterized in that described air inlet duct (3) is " U " type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171282.7U CN203797076U (en) | 2014-04-10 | 2014-04-10 | Air suction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171282.7U CN203797076U (en) | 2014-04-10 | 2014-04-10 | Air suction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797076U true CN203797076U (en) | 2014-08-27 |
Family
ID=51379286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420171282.7U Expired - Lifetime CN203797076U (en) | 2014-04-10 | 2014-04-10 | Air suction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588244A (en) * | 2016-07-06 | 2018-01-16 | 科普瑞（天津）厨房设备有限公司 | draining and sealing structure |
| CN114033879A (en) * | 2021-11-25 | 2022-02-11 | 永高股份有限公司 | Suction valve for drainage system |
-
2014
- 2014-04-10 CN CN201420171282.7U patent/CN203797076U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588244A (en) * | 2016-07-06 | 2018-01-16 | 科普瑞（天津）厨房设备有限公司 | draining and sealing structure |
| CN114033879A (en) * | 2021-11-25 | 2022-02-11 | 永高股份有限公司 | Suction valve for drainage system |
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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 |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |