CN108150681A

CN108150681A - A kind of automatic anti-suck valve

Info

Publication number: CN108150681A
Application number: CN201810037597.5A
Authority: CN
Inventors: 陈忠义
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-16
Filing date: 2018-01-16
Publication date: 2018-06-12

Abstract

The invention discloses a kind of automatic anti-suck valves, including counterflow-preventing valve body, suspension and movable valve plug, the external table wall of valve for preventing reverse-flow is welded with two groups of symmetrical ear columns, and offer bolt hole at the center of two groups of ear columns, the inner surface wall of the counterflow-preventing valve body is welded with interior pedestal, water inlet is offered at the center of the interior pedestal, the side of the water inlet is pressed with movable valve plug, two symmetrical slots are offered at the center of the movable valve plug, and the inner surface wall of two slots is welded with resetting spring, the side of the resetting spring is fixed with suspension；The valve internal of the present invention is provided with two air bags being connected, when inflow gradually increases, the water to flow back in water outlet squeezes the first air bag, air in first air bag is pressed into the second air bag, second air bag volume becomes larger so as to push movable valve plug, is closed so as to fulfill valve, so as to prevent situation about being overflowed after water is full, practicability is stronger, satisfies the use demand.

Description

A kind of automatic anti-suck valve

Technical field

The present invention relates to the technical field of valve, specially a kind of automatic anti-suck valve.

Background technology

The opening and closing element of shut-off valve (stop valve, Globe Valve) is the flap of stopper, and sealing is in plane or sea above The conical surface, flap are for linear motion along the center line of valve seat.The forms of motion of valve rod, (adopted name：Dark bar), also there is lifting rotation Rod-type can be used for the empty gas and water of control, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium etc. each The flowing of type fluid.Therefore, such shut-off valve valve that shuts off is highly suitable as cutting off or adjusts and throttle With.Due to the valve rod of such valve, to be turned on and off stroke relatively short, and with very reliable cutting function, and due to The variation of valve seat port and the stroke direct proportionality of flap, are very suitable for the adjusting to flow, but existing cut-off In place of valve comes with some shortcomings during use.

1st, when fluid injection rate is excessive, spilling situation is be easy to cause, so as to cause to waste, it is impossible to satisfy the use demand.

2nd, valve is complicated, difficult in maintenance, needs maintenance times more during coming into operation, it is impossible to meet people Demand.

Invention content

The purpose of the present invention is to provide a kind of automatic anti-suck valve, to solve mentioned above in the background art ask Topic.

To achieve the above object, the present invention provides following technical solution：A kind of automatic anti-suck valve, including valve for preventing reverse-flow Body, suspension and movable valve plug, the external table wall of valve for preventing reverse-flow are welded with two groups of symmetrical ear columns, and in two groups of ear columns Bolt hole is offered at the heart, the inner surface wall of the counterflow-preventing valve body is welded with interior pedestal, is opened up at the center of the interior pedestal There is water inlet, the side of the water inlet is pressed with movable valve plug, symmetrical two are offered at the center of the movable valve plug A slot, and the inner surface wall of two slots is welded with resetting spring, the side of the resetting spring is fixed with suspension, described outstanding Appearance wall of the frame far from movable valve plug side is welded with welding column, and the welding column is fixedly mounted on the inner surface wall of water outlet, described outstanding Location hole is offered at the side center of frame, the side of the location hole accompanies the first air bag, the opposite side folder of the location hole There is the second air bag, first air bag and the second air bag are connected.

Preferably, second air bag is placed on the inside of suspension.

Preferably, the interior pedestal and the appearance wall of movable valve plug junction are coated with one layer of gasket.

Preferably, two symmetrical through-holes are offered at the center of the welding column.

Preferably, the inside of first air bag and the second air bag is filled with air.

Compared with prior art, the beneficial effects of the invention are as follows：

1st, valve internal of the invention is provided with two air bags being connected, when inflow gradually increases, water outlet The water of interior reflux squeezes the first air bag, the air in the first air bag is pressed to the second air bag, the second air bag volume becomes larger to push away Dynamic movable valve plug, is closed so as to fulfill valve, and so as to prevent situation about being overflowed after water is full, practicability is stronger, satisfies the use demand.

2nd, the internal structure of valve of the invention is simple, and cost is small, and service life is long, while the valve can be realized and be prevented automatically Countercurrently, maintenance times are effectively reduced, meet people's demand.

Description of the drawings

Fig. 1 is overall structure sectional view of the present invention；

Fig. 2 is welding column structural front view of the present invention.

In figure：1- counterflow-preventing valve bodies；The first air bags of 2-；3- water outlets；4- ear columns；5- bolts hole；6- welding columns；7- suspensions； 8- movable valve plugs；9- water inlets；The second air bags of 10-；11- resetting springs；12- gaskets；Pedestal in 13-；14- slots；15- determines Position hole；16- air；17- through-holes.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of automatic anti-suck valve, including counterflow-preventing valve body 1st, suspension 7 and movable valve plug 8, the 1 appearance wall of counterflow-preventing valve body are welded with two groups of symmetrical ear columns 4, and two groups of ear columns 4 Center at offer bolt hole 5, the inner surface wall of the counterflow-preventing valve body 1 is welded with interior pedestal 13, the interior pedestal 13 Water inlet 9 is offered at center, the side of the water inlet 9 is pressed with movable valve plug 8, is opened up at the center of the movable valve plug 8 There are two symmetrical slots 14, and the inner surface wall of two slots 14 is welded with resetting spring 11, the resetting spring 11 Side be fixed with suspension 7, appearance wall of the suspension 7 far from 8 side of movable valve plug is welded with welding column 6, and the welding column 6 is fixed Mounted on the inner surface wall of water outlet 3, location hole 15, the side of the location hole 15 are offered at the side center of the suspension 7 The first air bag 2 is accompanied, the opposite side of the location hole 15 accompanies the second air bag 10,2 and second air bag of the first air bag, 10 phase Lead to and connect.

Second air bag 10 is placed on the inside of suspension 7, and the volume using both the first air bag 2 and the second air bag 10 becomes Change the keying for realizing movable valve 8, the interior pedestal 13 and the appearance wall of 8 junction of movable valve plug are coated with one layer of gasket 12, The effect of Fluid Sealing is primarily served, two symmetrical through-holes 17 are offered at the center of the welding column 6, primarily serves and leads The effect of stream, the inside of 2 and second air bag 10 of the first air bag are filled with air 16.

Operation principle：The automatic anti-suck valve of the present invention, using bolt and bolt hole 5 by counterflow-preventing valve body 1 during use It fixes in place, after fluid enters water inlet 9, fluid generates pressure to movable valve plug 8, when pressure gradually increases When, movable valve plug 8 is pushed, resetting spring 11 is compressed and the air 16 in the second air bag 10 is squeezed to the first air bag 2, at this time Movable valve plug 8 is opened far from interior pedestal 13, valve, and fluid is flowed out by water outlet 3, after the fluid of 3 side of water outlet is full of, water Certain pressure is generated to the first air bag 2, the air 16 in the first air bag 2 is squeezed to the second air bag 10, the second air bag 10 Volume increase, with movable valve plug 8 generate active force with water inlet generate pressure direction on the contrary, playing interception, simultaneously Under the action of resetting spring 11, movable valve plug 8 is tightly pressed against the side of gasket 12, is acted on so as to fulfill cutout.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment Intrinsic element.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims

1. a kind of automatic anti-suck valve, including counterflow-preventing valve body (1), suspension (7) and movable valve plug (8), it is characterised in that：Institute It states counterflow-preventing valve body (1) appearance wall and is welded with two groups of symmetrical ear columns (4), and opened up at the center of two groups of ear columns (4) There is a bolt hole (5), the inner surface wall of the counterflow-preventing valve body (1) is welded with interior pedestal (13), at the center of the interior pedestal (13) Water inlet (9) is offered, the side of the water inlet (9) is pressed with movable valve plug (8), is opened at the center of the movable valve plug (8) Equipped with two symmetrical slots (14), and the inner surface wall of two slots (14) is welded with resetting spring (11), described multiple The side of position spring (11) is fixed with suspension (7), and appearance wall of the suspension (7) far from movable valve plug (8) side is welded with Column (6), the welding column (6) are fixedly mounted on the inner surface wall of water outlet (3), and it is fixed to be offered at the side center of the suspension (7) Position hole (15), the side of the location hole (15) accompany the first air bag (2), and the opposite side of the location hole (15) accompanies the second gas Capsule (10), first air bag (2) and the second air bag (10) are connected.

2. a kind of automatic anti-suck valve according to claim 1, it is characterised in that：Second air bag (10) is placed on The inside of suspension (7).

3. a kind of automatic anti-suck valve according to claim 1, it is characterised in that：The interior pedestal (13) and moving valve The appearance wall of core (8) junction is coated with one layer of gasket (12).

4. a kind of automatic anti-suck valve according to claim 1, it is characterised in that：It is opened at the center of the welding column (6) Equipped with two symmetrical through-holes (17).

5. a kind of automatic anti-suck valve according to claim 1, it is characterised in that：First air bag (2) and second The inside of air bag (10) is filled with air (16).