CN204942667U - Vacuum breaker valve - Google Patents
Vacuum breaker valve Download PDFInfo
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- CN204942667U CN204942667U CN201520701339.4U CN201520701339U CN204942667U CN 204942667 U CN204942667 U CN 204942667U CN 201520701339 U CN201520701339 U CN 201520701339U CN 204942667 U CN204942667 U CN 204942667U
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- valve
- vacuum breaker
- air
- inlet cavity
- valve gap
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Abstract
The utility model discloses a kind of vacuum breaker valve, relate to a kind of valve mechanism be applied in various easy vacuum pipe-line system, its structure is by valve body, valve gap, valve petal shelf, flap, the formation such as guide rod and antifouling cover, the overarm brace of built on stilts design is mainly set up at valve gap end face, and in valve gap, design the air-inlet cavity that can communicate with the external world, when valve petal shelf under intake pressure effect, drive valve flap contacts valve gap bottom and hermetically enclosed air-inlet cavity time, water intake and water outlet are the normal water inlet state interconnected, in pipeline, occur that negative pressure just can make ambient air suck air-inlet cavity and wash flap open and contact with the sealing of valve gap bottom, thus the vacuum effect in destruction valve pocket, again state of normally intaking is recovered to make vacuum breaker valve, therefore vacuum breaker valve after improving to have structural design simple, easy for installation, use the advantages such as reliable.
Description
Technical field
The utility model relates to a kind of valve mechanism of pipe-line system, specifically refers to the vacuum breaker valve that can prevent pipeline from occurring negative pressure.
Background technique
Vacuum breaker valve can be widely used in various easy vacuum pipe-line system; as fields such as fire-fighting, swimming pool, greenery patches sprinkling irrigation, plumbing, dock, power plant, metallurgy, shipbuildings; air is sucked in time with protective conduit system when forming negative pressure in pipeline; pipeline or container to run because of pipe-line system or stop and producing negative pressure or vacuum progressively raise time; vacuum breaker valve automatically can be opened and destroy vacuum effect; and make pipeline and flat, the recessed phenomenon such as to split of the unlikely generation of miscellaneous equipment, with the safety of proterctive equipment.At present, common vacuum breaking valve arrangement and disclosed China Patent No. be 201420171282.7 " Aspirating valves " similar, mainly be made up of valve body, valve pocket, valve gap, water intake, valve petal shelf and flap etc., although this valve has component advantage few, compact to design, but the design of its valve pocket structure needs to use sand casting process, and manufacturing process is more complicated, and only has a water intake, usually need to install separately in pipe-line system, extremely bother.Disclosed China Patent No. be " vacuum breaker valve " of 201220705013.5 although have the simple valve pocket of structural design, its working method is mainly realized by the keying of rocking arm type flap, installs comparatively complicated, also have impact on the reliability of use.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art and provides that a kind of structural design is simple, easy for installation, service-strong vacuum breaker valve.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of vacuum breaker valve, comprise valve body, valve gap that the valve pocket be arranged in valve body, sealing are arranged on valve pocket top, be arranged on valve body and be communicated with the water intake of valve pocket and water outlet and be elevated the valve petal shelf and flap that are movably arranged in valve pocket, described valve gap end face is provided with the built on stilts overarm brace installed, be provided with air-inlet cavity in valve gap, this air-inlet cavity is connected with the external world through overarm brace; Described flap contacts valve gap bottom and hermetically enclosed air-inlet cavity by the lifting activity of valve petal shelf, or departs from valve gap bottom and air-inlet cavity is connected with water outlet.
Be provided with guide rod in described valve gap, valve petal shelf is provided with pilot hole, and described guide rod upper end is fixedly mounted on overarm brace, and the activity of guide rod lower end penetrates in pilot hole.
Described overarm brace comprises crossbeam that level installs and two supports and is arranged on leg below crossbeam, and these two leg disjunctors designs are at valve gap end face, and described guide rod upper end is fixedly mounted on crossbeam.
Be provided with internal thread seat in the middle part of described crossbeam, described guide rod threaded upper ends is connected in this internal thread seat, and it is fixing to do installation with screw thread glue.
Described crossbeam two ends are provided with the extending end crossing two legs respectively, and this extending end is provided with attachment hole.
Described crossbeam installs antifouling cover, and this antifouling cover is provided with the screw be threaded in through antifouling cover in described attachment hole.
Described antifouling cover is the round cover-shaped structure of back-off, is provided with the gas-entered passageway being communicated with air-inlet cavity between antifouling cover with valve body.
Described water intake is arranged on just to the body base of valve petal shelf, and described water outlet is arranged on valve body side, the water channel shaft axis of this water outlet and the water channel shaft axis of water intake orthogonal.
The interior shoulder of stop bit that restriction valve petal shelf moves downward is provided with in described water intake.
Compared with prior art, the utility model mainly sets up the overarm brace of built on stilts design at valve gap end face, and in valve gap, design the air-inlet cavity that can communicate with the external world, when valve petal shelf under intake pressure effect, drive valve flap contacts valve gap bottom and hermetically enclosed air-inlet cavity time, water intake and water outlet are the normal water inlet state interconnected, in pipeline, occur that negative pressure just can make ambient air suck air-inlet cavity and wash flap open and contact with the sealing of valve gap bottom, thus the vacuum effect in destruction valve pocket, again state of normally intaking is recovered to make vacuum breaker valve, therefore vacuum breaker valve after improving to have structural design simple, easy for installation, use the advantages such as reliable.
Accompanying drawing explanation
Fig. 1 is that the utility model is normally intake the sectional structure schematic diagram of state.
Fig. 2 is the sectional structure schematic diagram of the utility model suction condition.
Fig. 3 is three-dimensional exploded view of the present utility model.
Embodiment
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
As shown in Fig. 1 ~ Fig. 3,1. shoulder, 2. valve petal shelf, 21. pilot holes, 3. flap, 4. valve gap, 41. air-inlet cavitys, 5. guide rod, 6. screw, 7. antifouling cover, 8. overarm brace, 81. internal thread seats, 82. crossbeams, 83. legs, 84. extending ends, 85. attachment holes, 9. gas-entered passageway, 10. "O"-ring in valve body, 11. valve pockets, 12. water intakes, 13. water outlets, 14. stop bits.
Vacuum breaker valve, as shown in Figure 3, it is a kind of valve mechanism be widely used in various easy vacuum pipe-line system, and its structure is mainly made up of valve body 1, valve gap 4, valve petal shelf 2, flap 3, guide rod 5 and antifouling cover 7 etc.
There is in described valve body 1 the threeway valve pocket 11 of " ┣ " type shape, be mainly used in the lifting activity of medium circulation and valve petal shelf 2; Wherein, valve pocket 11 lower end mouth is set to water intake 12 and enters for medium; Valve pocket 11 side ports is set to water outlet 13 and flows out for medium, and the water channel shaft axis of water intake 12 and water outlet 13 is orthogonal; Valve pocket 11 upper end-hole is provided with the valve gap 4 be threaded, and is also provided with "O"-ring 10 to connect sealing between this valve gap and valve body 1.
Described valve petal shelf 2 is just arranged water intake 12, is then provided with the rubber flap 3 that setting-in is fixing at valve petal shelf 2 top; Meanwhile, in water intake 12, be provided with shoulder 14 in stop bit, move downward stroke for restriction valve petal shelf 2, and moving upward of valve petal shelf 2 will drive flap 3 close contact in the bottom of valve gap 4.
Air-inlet cavity 41 is provided with in described valve gap 4, valve gap 4 end face is provided with the built on stilts overarm brace 8 installed, the crossbeam 82 that this overarm brace 8 is mainly installed by level and the leg 83 that two supports are arranged on below crossbeam are formed, two leg 83 disjunctor designs are at valve gap 4 end face, therefore the air-inlet cavity 41 in valve gap is connected with valve body 1 external world by the air-right structure of overarm brace 8.
Internal thread seat 81 is provided with in the middle part of described crossbeam 82, and guide rod 5 upper end is threaded connection in internal thread seat 81, and do being connected and fixed between the two with screw thread glue, the direct activity in guide rod 5 lower end penetrates in the pilot hole 21 preset in the middle part of valve petal shelf 2, and its effect is leading role when doing lifting activity as valve petal shelf 2 in valve pocket 11.
Described crossbeam 82 two ends are provided with the extending end 84 crossing two legs 83 respectively, and this extending end is provided with attachment hole 85; Crossbeam 82 then installs antifouling cover 7, this antifouling cover is the round cover-shaped structure of a back-off, be each passed through antifouling cover 7 by two screws 6 and be threaded in the attachment hole 85 on extending end 84, thus antifouling cover 7 is fixed on crossbeam 82, prevent introduced contaminants from entering, and install after antifouling cover 7 and valve body 1 between also can be reserved with gas-entered passageway 9, be connected with the air-inlet cavity 41 in valve gap 4 to facilitate.
Working principle of the present utility model is: normally without under negative pressure state as shown in Figure 1, medium is flowed into by the water intake 12 of valve body 1, flap 3 is pressed on valve gap 4 lower end to realize hermetically enclosed air-inlet cavity 41 by the gravity that the pressure of medium overcomes valve petal shelf 2 and flap 3, medium just can flow out from water outlet 13, now this vacuum breaker valve uses as angle coupling, is in normal water inlet state; Under negative pressure state as shown in Figure 2, under the Gravitative Loads of atmospheric pressure and valve petal shelf 2, flap 3, flap 3 departs from the sealing of valve gap 4 lower end, ambient air is by gas-entered passageway 9, air-inlet cavity 41, water outlet 13 and enter in pipe-line system, pipeline pressure is recovered normally, valve petal shelf 2 and flap 3 again can upwards contact sealed valve cap 4 bottom again under medium promotes, thus play the effect preventing pipeline from occurring negative pressure.
Claims (9)
1. a vacuum breaker valve, comprise valve body (1), valve gap (4) that the valve pocket (11) be arranged in valve body, sealing are arranged on valve pocket top, be arranged on valve body (1) and go up and be communicated with the valve petal shelf (2) and flap (3) that the water intake (12) of valve pocket (11) and water outlet (13) and lifting be movably arranged in valve pocket (11), it is characterized in that described valve gap (4) end face is provided with the built on stilts overarm brace (8) installed, be provided with air-inlet cavity (41) in valve gap (4), this air-inlet cavity is connected with the external world through overarm brace (8); Described flap (3) contacts valve gap (4) bottom and hermetically enclosed air-inlet cavity (41) by the lifting activity of valve petal shelf (2), or departs from valve gap (4) bottom and air-inlet cavity (41) is connected with water outlet (13).
2. vacuum breaker valve according to claim 1, it is characterized in that being provided with guide rod (5) in described valve gap (4), valve petal shelf (2) is provided with pilot hole (21), described guide rod (5) upper end is fixedly mounted on overarm brace (8), and guide rod (5) lower end activity penetrates in pilot hole (21).
3. vacuum breaker valve according to claim 2, it is characterized in that described overarm brace (8) comprises crossbeam (82) that level installs and two supports and is arranged on leg (83) below crossbeam (82), these two leg disjunctor designs are at valve gap (4) end face, and described guide rod (5) upper end is fixedly mounted on crossbeam (82).
4. vacuum breaker valve according to claim 3, it is characterized in that described crossbeam (82) middle part is provided with internal thread seat (81), described guide rod (5) threaded upper ends is connected in this internal thread seat (81), and it is fixing to do installation with screw thread glue.
5. vacuum breaker valve according to claim 3, it is characterized in that described crossbeam (82) two ends are provided with the extending end (84) crossing two legs (83) respectively, this extending end is provided with attachment hole (85).
6. vacuum breaker valve according to claim 5, it is characterized in that described crossbeam (82) installs antifouling cover (7), this antifouling cover is provided with the screw (6) be threaded in described attachment hole (85) through antifouling cover (7).
7. vacuum breaker valve according to claim 6, is characterized in that the round cover-shaped structure that described antifouling cover (7) is back-off, is provided with the gas-entered passageway (9) being communicated with air-inlet cavity (41) between antifouling cover (7) with valve body (1).
8. vacuum breaker valve according to claim 1, it is characterized in that described water intake (12) is arranged on just to valve body (1) bottom of valve petal shelf (2), described water outlet (13) is arranged on valve body (1) side, the water channel shaft axis of this water outlet (13) and the water channel shaft axis of water intake (12) orthogonal.
9. vacuum breaker valve according to claim 8, is characterized in that being provided with in described water intake (12) the interior shoulder (14) of stop bit limiting valve petal shelf (2) and move downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701339.4U CN204942667U (en) | 2015-09-11 | 2015-09-11 | Vacuum breaker valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701339.4U CN204942667U (en) | 2015-09-11 | 2015-09-11 | Vacuum breaker valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942667U true CN204942667U (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520701339.4U Active CN204942667U (en) | 2015-09-11 | 2015-09-11 | Vacuum breaker valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744002A (en) * | 2019-10-09 | 2020-02-04 | 洪方正 | Vacuum breaker valve and preparation method thereof |
-
2015
- 2015-09-11 CN CN201520701339.4U patent/CN204942667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744002A (en) * | 2019-10-09 | 2020-02-04 | 洪方正 | Vacuum breaker valve and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |