DE3126508A1 - DISPENSING VALVE FOR DISPENSING PRESSURE LIQUIDS - Google Patents

Description

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DESCRIBED

The present invention relates to a metering valve for the delivery of pressurized liquids »

Ss are known to have been metering valves on the for a long time Market, which are preferably attached to so-called spray cans and each time the push button is pressed enable the delivery of a pre-dosed liquid cone »

These metering valves usually consist of a cup part inside which the valve body is provided The cup part is attached in a sealed manner to the mouth of the container by means of a fastening neck «Zur A seal is also required for proper sealing · = see, which outside surrounds the cup part and directly from Fastening neck is pressed onto the upper edge of the container.

In this embodiment, the container must necessarily have a relatively large mouth, which is why it is not currently this type of metering valve is possible on small containers to be attached with an opening of a few millimeters (current minimum 13 mm) »

These small containers are commonly used for so-called "product samples", which of course are very small Quantities of the product should contain »

The aim of the present invention is therefore to avoid it the aforementioned disadvantages and the creation of a dosing = which, although it has all the typical properties

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the metering valves on extremely small mouths can be attached.

The inventive metering valve has due to the mutual Arrangement of its components an extremely compact form and is quick and easy to assemble. Yfeiters can do that metering valve according to the invention are made of generally commercially available materials, so that it, from From a purely economic point of view, great advantages offers.

The invention accordingly relates to a metering valve for the Dispensing of pressurized liquids consisting of a cup part, which is the mouth of a container can be assigned and has a valve spindle in its interior, which in cooperation with an im Inside the cup 3 housed cylindrical Body defines a dosing chamber, which is characterized is that the cup part has a ring stop below, which has a hollow extension, which from said Beehteil stands away, embraces and engages a seal, which acts on the upper edge of said opening, whereby furthermore a neck for folding the cup part onto the Mouth of the container is provided.

Further details and advantages of the invention are made clearer from the following description of an exemplary embodiment a metering valve according to the invention for the Dispensing of pressurized liquids with reference to be taken from the attached drawing.

Show:

Pig. 1 shows in cross section and on a larger scale the metering valve in the non-use position; and

Pig. 2 the metering valve in cross section and in the position of use.

According to the drawing, this generally has the reference number 1 designated metering valve for the delivery of pressurized liquids on a cup part 2, which the Mouth 3 of a container can be assigned »

Inside the cup part 2, a valve spindle 4 can be displaced against the force of elastic organs, which is shown in FIG Cooperation with one housed inside the cup part cylindrical part defines a dosing chamber for dispensing dosed amounts of product «

Said cylindrical body is designed in two parts in order to vary the useful volume of the dosing chamber as desired can, as described in detail in the concurrent German patent application no. vom

The valve spindle has an axial recess 7 at the top

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a radial opening 9 which, when the valve spindle is in its lower position, the metering chamber with the outside environment in connection and thereby allows the product delivery and at the same time the connection locked between the dosing chamber and the interior of the container

When the spindle is in the directional release position (Pig. 1), the connection with the outside environment is

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locks, however, the Dosierkaamer is with the container interior tied together.

The special feature of the invention can be seen in that the cup part has an annular stop 10 in the region of its lower end, which has a hollow extension 11 surrounds, which extends inside the container and in which the lower part of the valve spindle 4 is plugged in. The stop 10 engages a seal 15 which extends directly from the cup part to the upper edge 16 the mouth 3 of the container is printed.

In this way, an additional space requirement in the width of the valve body is avoided, so that the valve body can also be assigned to containers that have an extremely small mouth.

For the purpose of tight assignment of the cup part to the mouth 3, a fastening neck 20 is provided which by rolling or the like. Systems is crimped so that the cylindrical body on the cup part and the cup part blocked on the mouth of the container.

Around the seal in the area of the stop ring v / pus To improve, a small ring collar 17 is provided which, when pressed against the top of the seal 15, is provided offers absolute security against leakage of product to the outside.

The dosing valve is used in exactly the same way Y / eise · as with conventional dispensing valves, whereby the However, the metering valve according to the invention offers the advantage

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that it enables the use of containers, the mouth of which has only such internal dimensions "that only the Recording of the hollow extension 11 is possible and the seal is pressed directly onto the mouth, so that no more space is required.

The above remarks indicate that the present Invention, the objectives set out above are achieved * In particular, reference should be made to the fact that the metering valve is designed in such a way that it is suitable for attachment to containers with very small dimensions, which was previously not possible with the known metering valves.

Furthermore, since the lower part of the cup part acts directly on the seal, the seal is extremely effective and -precise,

In practice, the materials employed, as well as the dimensions and Fonnen can _s depending on the requirements, be chosen arbitrarily "

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Claims (2)

ur. r _8r . i _ial . Wolfgang Kemp © "2 9. MH " toi Palenlan wait ^{ö /} Ho // S.poAo YALYOLS AEROSOL RESEARCH ITALIAHA VoAoRoI. Yia del Pino, 10 - OLGINATE (Province of Como) - ITALY PURE DOSING VALVE DELIVERING UNDER PRESSURE LIQUIDS PATENT CLAIMS Dosing valve for dispensing pressurized Pltissungen, which consists of a cup part, which can be assigned to the mouth of a container and in its interior has a valve spindle which, in cooperation with an interior of the cup part housed cylindrical body defines a dosing chamber, characterized in that the cup part (2) has a ring attachment (10) at the bottom, which has a hollow port set (11) which is away from said cup part (2) = stands, comprises and engages a seal (15) acting on the upper edge (16) of said mouth (3), wherein Furthermore, a neck (20) is provided for crimping the cup part (2) onto the mouth (3) of the container. 2. Dosing valve according to claim 1, characterized in that a protruding one in the region of the annular stop (10) Annular ring (17) is provided, which is capable of increasing the sealing effect on the top of the seal (15) attack.