CN1317684A - Venturi vacuum valve device for saving water - Google Patents

Abstract

The venturi vacuum valve device for saving water of the present invention comprises: a plunger press-fitted into the tube and having a first opening, a second opening and a third opening; a first opening formed in the plunger as an inlet port facing the incoming water, the first opening being smaller than the second opening, the first and second openings being connected together in the plunger such that a small diameter region in the plunger is connected to a large diameter region of constant size; the third opening is opened to the atmosphere and is intersected with the small-diameter area and the large-diameter area after the small-diameter area and before the second opening to form a suction hole; the second opening connected to the large diameter region forms an outlet in the plunger.

Description

The venturi vacuum valve device that is used to economize on water

The present invention relates to a kind of improved venturi vacuum valve that can change fluid flow.Particularly, the present invention relates to a kind of venturi vacuum valve of the hydrodynamic pressure low discharge can be improved the time.

Nobody argued the necessity of water saving.The water of using when the water device of having introduced low discharge is saved toilet and shower.Some low discharge device of using during shower is very simple, just limiting Anywhere to stop current along the predominating path of water.Yet the problem that this low discharge shower water device of prior art exists is, when the flow velocity of water reduced, the flow of water also reduced, so the sensation during the shower nozzle high flow rate has also disappeared.Recently, improved existing this device, it is to introduce air in the current of nozzle.The inventor has known a kind of like this product, and it is that DuPont company produces, and trade mark is SPA2001.This device is a nozzle with many moving members, and these moving members are to be used for sucking air at the endpiece of nozzle, and it is incorporated into the upper reaches of outlet.

The shortcoming of one type of prior art syringe and this DuPont device is, they need be removed the shower nozzle that the user of present existence has been accustomed to and comprise a large amount of movable parts and web member, owing to introduce air, so increased the sun plug and the dirty chance of the water of discharging from the outlet of device from outlet.Therefore, there is a need in the field to provide a kind of improved venturi vacuum valve, it does not comprise department's moving member, allows to use existing shower nozzle, and provides a Venturi effect in distance shower nozzle exit.So one object of the present invention just provides a kind of improved venturi vacuum valve, it does not comprise displaceable member, allows to use existing shower nozzle, and in the position of leaving valve outlet port Venturi effect is arranged.

In view of the above, venturi vacuum valve of the present invention comprises a plunger with first, second, third opening.First opening that forms on the plunger is as import and littler than second opening.Second opening and the 3rd opening couple together in plunger inside, so have the space of a minor diameter and a large diameter space to couple together in plunger inside.The 3rd openings is in atmosphere and form an inlet hole, and it intersects with the size diameter zone after small diameter area and before second opening.Second opening has formed an outlet on described plunger.In an optimum embodiment, plunger is fit to be positioned in the playpipe just fully.In another embodiment, plunger comprises the screw thread that is connected on the playpipe and shower nozzle is connected to screw thread on the plunger.After this correlation method of a kind of like this venturi vacuum valve of a kind of manufacturing also is provided in detail.

From the detailed description of following optimum embodiment, additional claims and accompanying drawing, other purposes, characteristics and the advantage of invention will become more obvious.

Fig. 1 is the part side view of the optimum embodiment of venturi vacuum valve of the present invention;

Fig. 2 be each end of venturi vacuum valve of the present invention all have connecting thread the part side view of cutting open of optimum embodiment;

Fig. 1-2 is the diagram of the optimum embodiment of the present invention.See Fig. 1, venturi vacuum valve comprises a plunger 12 that first opening 14, second opening 16 and the 3rd opening 18 are arranged on it.First opening, 14 to the second openings 16 are little, and first opening 14 has formed a small diameter area 20, and the large-diameter region 22 of the constant dimensions that second opening 16 by big in it and the plunger forms couples together (as shown in Figure 1).And for example shown in Figure 1, the large-diameter region 22 of small diameter area 20 and constant dimensions couples together at point 24 places in plunger 12.The 3rd opening 18 is openings of maximum gauge in three openings, and it intersects with large-diameter region 22 after the joining 24 of small diameter area 20 and large-diameter region 22.The 3rd opening 18 is opened on atmosphere and forms air suction inlet.

As shown in Figure 1, in an optimum embodiment, plunger 12 is press fit in the playpipe 26, the water in the playpipe 26 moves with the direction of arrow 28.Playpipe 26 shown in Figure 1 is with a shower nozzle connecting thread 30, and connecting thread 30 is connected (not shown) with a common shower nozzle known in the art.

See Fig. 2 now, what the phantom view of plunger 12 was represented is an alternative embodiment of the invention, has wherein expressed interior installation screw thread 32 and the outer screw thread 34 of installing.In this embodiment, plunger 12 is connected on the shower nozzle connecting thread 30 by interior installation screw thread 32.The outer screw thread 34 of installing can be used in the general shower nozzle (not shown) that prior art is installed.

In the use, venturi vacuum valve is positioned at the inside 40 of playpipe 26, so first opening 14 faces playpipe shown in Figure 1 26 interior current by direction shown in the arrow 28.As a result, first opening 14 has formed the inlet of plunger 12.Aforesaid first opening, 14 to the second openings 16 are little and formed a small diameter area 20, and current flow into this zone with the direction shown in the arrow 28.Small diameter area 20 is opened on the large-diameter region 22 of constant dimensions and is connected with it in joining 24.Subsequently, the 3rd opening 18 intersects from a certain direction and large-diameter region 22, laterally is connected with little, large-diameter region 20,22.As seen from Figure 1, in an optimum embodiment, the large-diameter region 22 of small diameter area 20 and constant dimensions vertically forms with respect to columniform plunger 12 basically.That the 3rd opening 18 laterally is connected to is little, in the major diameter district or 20,22.Then, by being opened on the 3rd opening 18 of atmosphere, air mixed is in the water that flows to, so the flow velocity of water reduces to the speed of several gallons of per minutes apace and produced a strong torrent.Empty G﹠W mixes in joining 24 backs and discharges from second opening 16 of the formation outlet of plunger 12.So the water that has mixed air can spill out by shower nozzle normally used by the user, that be accustomed to.Like this, by venturi vacuum valve 10 of the present invention, current can be reduced to the 0.5-1.5 gallon per minute during transporting water, but still as water with a very high and very luxurious flow rate.

In an optimum embodiment, plunger 12 is press fit in the playpipe 26 simply, the 3rd opening 18 is aimed at an opening in the playpipes 26, makes atmosphere enter described device in mode as mentioned above.Or plunger 12 is inserted in the playpipe 26 in boring the place ahead of playpipe 26, and this boring is communicated to atmosphere in the plunger 12 by the 3rd opening 18.

Perhaps, as described in Figure 2, venturi vacuum valve 10 can comprise the interior installation screw thread 32 round the-opening 14 at the inlet end of plunger 12.When user mode, the shower nozzle that interior installation screw thread 32 makes venturi vacuum valve 10 can be installed to playpipe 26 is installed on the screw thread 30.So, screw thread 34 is installed outward the normally used shower nozzle of user can be connected on the plunger 12.Venturi vacuum valve 10 is worked as previously mentioned.

Though what venturi vacuum valve 10 of the present invention was discussed is when being applied to shower, is easy to expect that it also can be used for other mobility status.The invention provides a kind of improved venturi vacuum valve, it does not comprise moving member, is easy to make, and can be inserted into for example gas pipeline, water treatment system, artificial atmosphere or cooling water system and similar system.Because this device does not have moving member, thus be suitable for using together with inflammable, explosive material, and use with water.

Although the present invention discusses in conjunction with above embodiment, be to be understood that the embodiment that also has other, this all will fall within the protection domain of following claim of the present invention.

Claims (4)

1. A venturi vacuum valve device for saving water in a pipe with a given volumetric flow rate, comprising: (a) a plunger press-fit into the pipe for reducing water flow and having a first opening, a second opening and a third opening; (b) The first opening formed in the plunger acts as an inlet facing the incoming water, the first opening is smaller than the second opening, and the first and second openings are connected in the plunger so that there is A small-diameter area is joined to a large-diameter area of constant size; (c) the third opening is open to the atmosphere and intersects the small and large diameter areas behind the small diameter area and before the second opening to form a suction hole; (d) The second opening connected to the large diameter region of constant size forms an outlet in the plunger. 2. The device according to claim 1, characterized in that said plunger just fits completely in the spray tube. 3. The device of claim 1, wherein the plunger further includes mounting threads connected to the spray tube, and threads connecting the spray head to the plunger at the second opening. 4. A venturi vacuum plunger device without moving parts for press fit in a jet tube for water conservation, where water flows at a given volume flow rate, comprising: (a) a cylindrical solid plunger having three openings for reducing the volume of water flow out of the spray tube; (b) the small diameter opening axially of the cylindrical solid plunger forms an inlet and is located in the jet tube to introduce water into the plunger; (c) the large-diameter opening of constant size in the axial direction of the cylindrical solid plunger forms an outlet of the injection pipe and is connected to the small-diameter opening; (d) The third opening of the cylindrical solid plunger transversely intersecting the first and second openings forms an air suction hole intersecting the larger diameter second opening.

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