CN206918343U - A kind of the multi-functional of supply line arranges anti-device automatically - Google Patents

Abstract

Multi-functional the utility model discloses a kind of supply line arranges anti-device automatically, solving the problems, such as in common feedwater piping that air pressure is too high causes pipeline easily to burst, its drip irrigation device is, including the bonnet on valve body and valve body, side is provided with groove among valve body, groove is provided with the upper spacer with valve body, groove has the lower clapboard under upper spacer, upper spacer and lower clapboard are respectively equipped with stomata and air holes, lower clapboard is provided with to cover and covered below air holes, the first guide rod that upper spacer is provided through in lower cover and is slid up and down, it is provided with above first guide rod and is fixed under bonnet and prevents the first spacing ring of the first guide rod double swerve；Upper spacer is provided with to cover and covered above stomata, and upper cover is provided with the second guide rod slid up and down, is provided with above the second guide rod and is fixed under bonnet and prevents the second spacing ring of the second guide rod double swerve, reaches the purpose for preventing feedwater piping indentation or explosion.

Description

A kind of the multi-functional of supply line arranges anti-device automatically

Technical field

Plumbing field is the utility model is related to, the multi-functional of more particularly to a kind of supply line arranges anti-device automatically.

Background technology

The anti-device of arranging automatically of feedwater piping is widely used in the various systems for easily producing vacuum, and negative pressure is formed in system When suck air conservation system in time, when pipeline produces because of system operation or stopping negative pressure or vacuum is stepped up, Automatically arranging anti-device can automatically turn on, and destroy vacuum effect, make pipeline and miscellaneous equipment unlikely phenomena such as producing flat, crack, with The safety of protection equipment.

The Chinese utility model patent for now retrieving a Publication No. CN201909075U discloses a kind of vacuum breaking Device, including the valve body being connected on water supply line, the valve body is provided with suction hole, guide rod is provided with the suction hole, described to lead Valve inner is stretched into bar upper end, and the upper end of the guide rod is provided with cover plate.

But water, in water supply line flow process, the gas in water can escape to be accumulated in pipeline, in feed pipe Caused gas pressure intensity can be increasing in road, even results in water supply line rupture.Above-mentioned air admission valve can only automatic air-breathing The vacuum destroyed in water supply line protects water supply line, when air pressure is too high in water supply line, it is impossible to which automatic exhaust is protected Water supply line, therefore function is relatively simple, has much room for improvement.

Utility model content

The purpose of this utility model is to provide a kind of the multi-functional of supply line and arranges anti-device automatically, have can air-breathing break The advantages of vacuum and can exhaust in bad pipeline reduces the pressure of gas in pipelines.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of supply line it is more Function arranges anti-device, including valve body and the bonnet for being sealingly mounted at valve body upper end automatically, and side is provided with inwardly among the valve body The groove of extension, the groove top are provided with the upper spacer with valve body, are provided with below the groove positioned at upper spacer lower section Lower clapboard, the upper spacer and lower clapboard are respectively equipped with stomata and air holes, are provided with above the lower clapboard and cover lower gas Covered below hole, the first guide rod that upper spacer is provided through in the lower cover and can be slid up and down, above first guide rod Provided with being fixed on bonnet lower surface and prevent the first spacing ring of the first guide rod double swerve；It is provided with and covers above the upper spacer Covered above upper stomata, the upper cover is provided with the second guide rod slid up and down, is provided with and is fixed on above second guide rod Bonnet lower surface and the second spacing ring for preventing the second guide rod double swerve.

By using above-mentioned technical proposal, when air pressure is identical with atmospheric pressure in feedwater piping, upper cover, lower cover are in weight Power acts on lower cover on upper spacer and lower clapboard, stomata and air holes is sealed.Stop when being supplied water suddenly in feedwater piping When negative pressure or vacuum are only formed in pipeline, the gas pressure intensity of the upper surface of upper cover is less than the atmospheric pressure of lower surface, greatly Atmospheric pressure promotes upper cover and the second guide rod to move upwards, opens stomata, and gas enters feedwater piping from upper stomata, destroys Negative pressure or vacuum environment in pipeline, pipeline is set to be unlikely to give birth to flat, depression.Water is in water supply line flow process, in water Gas can be escaped and accumulated in water supply line, and caused gas pressure intensity can be increasing in water supply line, makes lower cover The air pressure of lower surface is more than the atmospheric pressure of upper surface, and gas pressure promotes lower cover and the first guide rod to move upwards, makes lower gas Hole is opened, and gas discharges feedwater piping from air holes, the hyperbaric environment destroyed in pipeline, pipeline is unlikely to because of internal gas pressure Qiang Tai great and rupture.

Of the present utility model further to set, the lower clapboard is fixed with lower seal with inlay card in lower cover.

By using above-mentioned technical proposal, lower seal makes the seal between lower clapboard and lower cover more preferable, prevents down There is drainage in gap between dividing plate and lower cover.

Of the present utility model further to set, the air holes is in lower upper small round table-like greatly.

By using above-mentioned technical proposal, when air holes is opened, gas is flowed out in valve body from top to bottom, lower upper small greatly Air holes makes flow velocity of the air-flow in air holes upper end bigger, also bigger to the impulsive force of lower cover, it is easier to pushes lower cover open.

Of the present utility model further to set, the upper spacer is fixed with sealing ring with inlay card in upper cover.

By using above-mentioned technical proposal, upper sealing ring makes the seal between upper spacer and upper cover more preferable, prevents There is drainage in gap between dividing plate and upper cover.

Of the present utility model further to set, described, upper stomata is in lower upper small round table-like greatly.

By using above-mentioned technical proposal, when upper stomata is opened, gas is flowed into valve body from top to bottom, lower upper small greatly Upper stomata makes flow velocity of the air-flow in upper stomata upper end bigger, also bigger to the impulsive force of upper cover, it is easier to push upper cover open.

Of the present utility model further to set, the first guide rod upper end is provided with the first counterweight in the first spacing ring Block, the second guide rod upper end are provided with the second balancing weight in the second spacing ring.

By using above-mentioned technical proposal, the first balancing weight and the second balancing weight make to be fixed on below below the first guide rod Cover and be fixed on and cover what is be compacted when feedwater piping inside and outside differential pressure is constant with upper spacer and lower clapboard below below the second guide rod It is tighter, the seal of valve body is further increased, prevents valve body from drainage occur in upper stomata and air holes.

Of the present utility model further to set, the cross section of first balancing weight and the second balancing weight is in up big and down small It is trapezoidal.

By using above-mentioned technical proposal, the first trapezoidal balancing weight of cross section and the second balancing weight make the first guide rod and Horizontal jitter is less likely to occur in the process slid up and down for second guide rod, makes the stability of the first guide rod and the second guide rod higher.

Of the present utility model further to set, the first spacing ring lower end is provided with is limited in the first limit by the first balancing weight The first hypotenuse in the ring of position, it is oblique that the second spacing ring lower end is provided with second that the second balancing weight is limited in the second spacing ring Side.

By using above-mentioned technical proposal, the first hypotenuse makes the first balancing weight be limited in the first spacing ring, the second hypotenuse The second balancing weight is limited in the second spacing ring, the first guide rod and the second guide rod is not shifted when moving up and down, So as to further increase the stability of the first guide rod and the second guide rod.

In summary, the utility model has the advantages that：With can air-breathing destroy pipeline in vacuum and can Exhaust reduces the pressure of gas in pipelines, and good protecting effect can be played to feedwater piping.Generally speaking the utility model, knot Structure is simple, practical.

Brief description of the drawings

Fig. 1 is the front section view of the present embodiment.

Reference：1st, valve body；2nd, bonnet；21st, transverse slat；3rd, groove；41st, lower clapboard；42nd, air holes；43rd, lower cover； 44th, the first guide rod；441st, the first balancing weight；45th, the first spacing ring；451st, the first hypotenuse；46th, lower seal；51st, upper spacer； 52nd, upper stomata；53rd, upper cover；54th, the second guide rod；541st, the second balancing weight；55th, the second spacing ring；551st, the second hypotenuse；56、 Upper sealing ring.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Embodiment：A kind of the multi-functional of supply line arranges anti-device automatically, as shown in figure 1, including valve body 1 and passing through flange The bonnet 2 of the upper end of valve body 1 is sealingly mounted at, the lower section of bonnet 2 is integrally formed with transverse slat 21.

1 middle side of valve body is provided with the groove 3 to extend internally, and there are upper spacer 51, upper spacer 51 and valve body 1 in the top of groove 3 Be integrally formed and perpendicular to the side wall of valve body 1, the lower section of groove 3 be parallel to upper spacer 51 and with 1 integrally formed lower clapboard of valve body 41.Upper spacer 51 and lower clapboard 41 have stomata 52 and air holes 42, and the top of lower clapboard 41, which is fitted with, covers air holes Lid 43 below 42, the first guide rod 44 upwardly extended is fixed among lower cover 43, the top of the first guide rod 44, which has, is fixed on horizontal stroke The lower surface of plate 21 and the first spacing ring 45 for preventing the double swerve of the first guide rod 44, the upper end of the first guide rod 44 integrally formed with positioned at The first balancing weight 441 in first spacing ring 45, the cross section of the first balancing weight 441 are in up big and down small trapezoidal, the first spacing ring 45 lower ends are integrally formed with the first hypotenuse 451 being limited in the first balancing weight 441 in first spacing ring 45.

The top of upper spacer 52 is fitted with upper cover 53, and upper cover 53 covers stomata 53, and centre is fixed with upper cover 53 The second guide rod 54 upwardly extended, the top of the second guide rod 54, which has, to be fixed on the lower surface of transverse slat 21 and prevents the second guide rod 54 or so from shaking The second dynamic spacing ring 55, the upper end of the second guide rod 54 is integrally formed with the second balancing weight 541 in the first spacing ring 55, and The cross section of two balancing weights 541 is in up big and down small trapezoidal, and the lower end of the second spacing ring 55 is integrally formed with by the second balancing weight 541 The second hypotenuse 551 being limited in the second spacing ring 55.

First balancing weight 441 and the second balancing weight 541 make to be fixed on lid 43 below the lower section of the first guide rod 44 and are fixed on Lid 53 is compacted more when feedwater piping inside and outside differential pressure is constant with upper spacer 51 and lower clapboard 41 above the lower section of second guide rod 54 Tightly, the seal of valve body 1 is further increased, prevents valve body 1 from drainage occur in upper stomata 52 and air holes 42.

Lower clapboard 41 is fixed with lower seal 46 with inlay card in lower cover 43, and lower seal 46 makes lower clapboard 41 and lower cover Seal between 43 is more preferable, prevents the gap between lower clapboard 41 and lower cover 43 from drainage occur.

The cross section of air holes 42 is in lower upper small trapezoidal greatly, and when air holes 42 is opened, gas flows out valve from top to bottom In body 1, lower small air holes 42 upper greatly makes flow velocity of the air-flow in the upper end of air holes 42 bigger, and the impulsive force of lower cover 43 is also got over Greatly, it is easier to push lower cover 43 open.

Upper spacer 51 is fixed with sealing ring 56 with inlay card in upper cover 53, and upper sealing ring 56 makes upper spacer 51 and upper cover Seal between 53 is more preferable, prevents the gap between upper spacer 51 and upper cover 53 from drainage occur.

The cross section of upper stomata 52 is in lower upper small trapezoidal greatly, and when upper stomata 52 is opened, gas flows into valve from top to bottom In body 1, lower small upper stomata 52 upper greatly makes flow velocity of the air-flow in the upper upper end of stomata 52 bigger, and the impulsive force of upper cover 53 is also got over Greatly, it is easier to push upper cover 53 open.

The course of work and principle：When air pressure is identical with atmospheric pressure in feedwater piping, upper cover 53 and lower cover 43 are in weight Power acts on lower cover on upper spacer 51 and lower clapboard 41, stomata 52 and air holes 42 is sealed.When prominent in feedwater piping When so water supply stops at the interior formation negative pressure of pipeline or vacuum, the gas pressure intensity of the upper surface of upper cover 53 is less than the big of lower surface Air pressure is strong, and atmospheric pressure promotes the guide rod 54 of upper cover 53 and second to move upwards, opens stomata 52, and gas is from upper stomata 52 Into feedwater piping, the negative pressure or vacuum environment destroyed in pipeline, pipeline is set to be unlikely to give birth to flat, depression.Water is in water supply line In flow process, the gas in water can escape to be accumulated in water supply line, the caused gas pressure intensity meeting in water supply line It is increasing, the air pressure of the lower surface of lower cover 43 is more than the atmospheric pressure of upper surface, gas pressure promotes lower cover 43 and the One guide rod 44 moves upwards, opens air holes 42, and gas discharges feedwater piping from air holes 42, the high compression ring destroyed in pipeline Border, pipeline is set to be unlikely to rupture because internal gas pressure is too big.

Claims (8)

1. a kind of the multi-functional of supply line arranges anti-device, including valve body (1) and the valve for being sealingly mounted at valve body (1) upper end automatically Cover (2), it is characterised in that side is provided with the groove (3) to extend internally among the valve body (1), is provided with above the groove (3) With the upper spacer (51) of valve body (1) one, groove (3) lower section is provided with the lower clapboard (41) below upper spacer (51), The upper spacer (51) and lower clapboard (41) are respectively equipped with stomata (52) and air holes (42), are set above the lower clapboard (41) Lid (43) below air holes (42) is covered, upper spacer (51) is provided through on the lower cover (43) and can slide up and down First guide rod (44), the first guide rod (44) top, which is provided with, to be fixed on bonnet (2) lower surface and prevents that the first guide rod (44) is left The first spacing ring (45) that the right side is rocked；It is provided with above the upper spacer (51) and covers lid (53) above stomata (52), it is described Upper cover (53) is provided with the second guide rod (54) slid up and down, is provided with above second guide rod (54) and is fixed on bonnet (2) Lower surface and the second spacing ring (55) for preventing the second guide rod (54) double swerve.

2. a kind of the multi-functional of supply line according to claim 1 arranges anti-device automatically, it is characterised in that under described every Plate (41) is fixed with lower seal (46) with inlay card in lower cover (43).

3. a kind of the multi-functional of supply line according to claim 1 arranges anti-device automatically, it is characterised in that the lower gas Hole (42) is in lower upper small round table-like greatly.

4. a kind of the multi-functional of supply line according to claim 1 arranges anti-device automatically, it is characterised in that on described every Plate (51) is fixed with sealing ring (56) with inlay card in upper cover (53).

5. a kind of the multi-functional of supply line according to claim 1 arranges anti-device automatically, it is characterised in that the upper gas Hole (52) is in lower upper small round table-like greatly.

6. a kind of the multi-functional of supply line according to claim 1 arranges anti-device automatically, it is characterised in that described first Guide rod (44) upper end is provided with the first balancing weight (441) in the first spacing ring (45), and the second guide rod (54) upper end is set There is the second balancing weight (541) in the second spacing ring (55).

7. a kind of the multi-functional of supply line according to claim 6 arranges anti-device automatically, it is characterised in that described first The cross section of balancing weight (441) and the second balancing weight (541) is in up big and down small trapezoidal.

8. a kind of the multi-functional of supply line according to claim 7 arranges anti-device automatically, it is characterised in that described first Spacing ring (45) lower end is provided with the first hypotenuse (451) being limited in the first balancing weight (441) in the first spacing ring (45), described Second spacing ring (55) lower end is provided with the second hypotenuse (551) being limited in the second balancing weight (541) in the second spacing ring (55).