DE7935124U1 - HOSE CRUSH VALVE - Google Patents

Description

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B08CH-SIBMENS HAuSOER) (VS OMJBH β Mtinöhen 80, 06. II. 1979 Stuttgart So oh s trail β 17

TZP 79/641 Vei / ant

Hose pinch valve

The innovation concerns a hose pinch valve, especially for electrical household appliances such as coffee machines, old two attacking from opposite sides on a hose, connected to an actuating device Jaws.

With such valves, which are often used because of their great simplicity and tightness, there is the problem that the material of the hose, be it rubber or plastic, sticks together after prolonged compression and the valve no longer opens.

The innovation is based on the task of creating a valve of the type described above, in which a gluing de Valve or a malfunction due to sticking

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is prevented.

This object is achieved according to the innovation in that the hose in the area of the clamping jaws old of the actuating device having connected Zugansätze. This solution has the advantage that the valve is not in use State can be kept open and thus prevents sticking, which requires a certain tent and on the other hand, if the valve is glued, it can still be opened by tearing open the glue point can. Since such valves are often pressed into the closed state by an adjustable spring preload and can be opened against the spring preload by the liquid flowing through the hose be expedient to open the valve at the end of the use of the device, e.g. B. when the switch is operated via the operating mechanism to open against the spring tension, so that the walls when the device is not in use are not pressed on each other. Another option is to change the actuation mechanism at the beginning of each To use the device, briefly press it once in the opening direction, including tearing open any adhesive. These actuations the operating mechanism can, for. B. be coupled with an on / off switch of the device.

The pulling lugs, which are preferably integral with the hose are formed can be anchored to the jaws.

The actuating device preferably comprises a mechanical adjusting device, e.g. B. a cam for moving the Jaws. The clamping jaws can be dovetail-shaped, at least in order to anchor the correspondingly formed pulling attachments have open grooves on one side for inserting the pulling attachments.

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In the following, the innovation will be shown on the basis of sehematy Figures are explained in more detail on an implementation game.

It shows

Pig * 1 In one across the hose to the Section going through the pinch point approximately along the line I-I in FIG. 2, a hose pinch valve;

FIG. 2 shows a section essentially along the line H-II in FIG. I; FIG.

Fig. 3 on an enlarged scale in a section corresponding to that of FIG. 2, the hose of the Pinch valve;

FIG. K shows a section essentially along the line IV-IV in FIG. 3, corresponding to the section in FIG. I;

FIG. 5 shows the clamping jaws on an enlarged scale in a section corresponding to that of FIG.

FIG. 6 shows a section essentially along the line VI-YI in FIG. 5.

The hose pinch valve shown in the figures has a hose 2 in the form of a short fitting, with two connecting pieces k and 6 of a device such. B. an electric coffee maker schietfbaren, thicker end pieces 8 and IO and a connecting middle piece 12. The middle piece narrows towards its middle part from both ends in a nozzle-shaped manner and has a flat oval middle narrowest flow point at rest. In each case on the flat sides of the middle, flat oval point of the middle piece 12 are opposite to each other around the hose

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lying Zugansätze 14 and iö formed, the vous Have thickened heads lying away from the tube "

A clamp 20, consisting of an upper clamp »22 and a lower clamp arm 24 connected at one end by a film hinge 26 and at their others find compressed by a preload spring clip 26 engages with its central area with the clamping jaws 30 and 32 im formed on the clamping arms Area of the access sets 14 and 16 on the middle piece 12 of the hose 2 from above and below. The jaws 30 and 32 point transversely to the longitudinal direction of the smart tube 2 running dovetail-shaped, open on one side Grooves 34 and 36 into which the correspondingly shaped ball lugs of the hose 2 are inserted «The clamp 20 also has elastic latching lugs 38 formed on its upper clamping arm 22, with which it is attached to a stationary one Machine part 40 (Fig. L) is anchored.

Between the ends pressed together by the spring clip 28 the clamping arms 22 and 24 are arranged with a cam 42 which is rotatable about an axis 44 indicated in broken lines is, this axis 44 in a manner not shown in a fixedly connected to the machine part 40, fixed Device part is stored. Fixed to the cam 42 is an actuating arm 46, on which a remote from the cam in the direction of arrow 48 displaceable actuating rod is pivotably articulated. When the actuator rod is 50 in When the arrow 48 is pulled downward, the cam 42 rotates until it separates the two clamping arms 22 and 24 spreads, opening the clamping point of the hose via the pulling lugs 14 and 16 of the hose 2. Is preferred this position is set when the machine in which the valve is used is not in use.

Claims (6)

• 79/641 protection claims 1. Hose pinch valve, especially for electrical household appliances such as coffee machines, with two of opposite sides Sides on a hose engaging, connected to an actuating device Clamping jaws, characterized in that the hose (2) is in the area of the Has clamping jaws (30,32) connected to the actuating device (20,34,36,42,50) pulling shoulders (14,16). 2. Hose pinch valve according to claim i, characterized in that that the pulling lugs (14, i6) are integrally formed with the hose (2). 3. hose squeeze valve according to claim 1 and / or 2, characterized in that the actuating device is a mechanical adjusting device, e.g. Legs Has cam (42) for moving the pulling lugs (14, 16) apart. 4. Hose pinch valve according to one of claims 1 to 3, characterized in that the pulling lugs (14, 16) can be held pulled apart by means of the actuating device (42, 50) when the valve is not in use. 5. hose pinch valve according to one of claims 1 to 3, characterized in that at each start-up of the valve, the pulling attachments can be pulled apart briefly by means of the actuating device (42, 50). 6. Schlauoh-Quetsohventil according to oinem of claims 1 to 5, characterized in that the pulling lugs (14, 16) are anchored on the clamping jaws (30, 32). "! ιό χ; 111 I I · · ίΓΖΡ 79/641 Hose pinch valve according to Claim 6, characterized in that the clamping jaws (30, 32) dovetail-shaped, at least one-sided have open grooves (34,36), and the pulling shoulders (± 4,16) shaped accordingly and in the grooves are inserted.