DE2044042A1 - Dependency circuit for taps - Google Patents

Description

Herne, 8000 Munich 23,

Frelllgrathstrasse « r» s ι ι nuDk Eisenacher Strasse 17

P.O. Box 140 Dipl. "Ing. R. Π. Ö au I Pal.-Anw. Bttzltr

DipI.-Phys. Eduard Betzier _{5 or 4} Dipl.-Ing. W. Herrmann-Trentepohl _Tnlnnram

Telegram address i

25TSf PATENTANWÄLTE Babefcpat Munich

Telex 08229853 Telex 0524582

Γ ~ 1 bank accounts:

Bayrische Vereinsbank Munich 952

0 Π / / Π / O Dresdner Bank AQ Herne 202 436

C \ JH * + U H £. Postal check account Dortmund 658 68

L ■ -i

Ref .: A 22 425

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M e r

The invention relates to a dependency circuit for taps, from the housings of which the switching shafts of the chicks lead out are, with shift levers used to rotate the shafts.

Dependency circuits ensure that several taps can only be switched in a certain order. That is essential if the taps are used to control media that are incompatible in the sense that when they come together There is a risk of explosion. The situation is similar when a centrifugal pump operated with compressed air is applied to a water pipe that can be shut off with a tap works. In this ■ mil, the water line does not have to be opened before the Pump is started by switching on the compressed air, because this is the only way to prevent the pump from sucking in air.

Known dependency circuits of this type generally operate electrical, preferably electromagnetic. That has

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Maschinenfabrik Werner Böhmer GmbH, 4322 Sprockhövel (Westf)

95

"Dependent holdings for cocks"

because of the remote control options numerous advantages, but electrical circuits of this type are in many cases 25.B. Not applicable in plants at risk of explosion. In the case of small systems, the one with such switchgear is often the case associated technical effort too great.

The invention is based on the problem of creating a mechanical dependency circuit for taps, which is therefore shown in can be used in cases in which electrical or electromagnetic circuits are out of the question.

According to the invention, this is achieved in the initially specified subject in that each switching shaft outside of the housing takes a locking body rotationally symmetrical to its axis, and the housings of the taps to be switched in dependence are connected to one another and arranged so that the blocking bodies of adjacent taps partially overlap one another, and that each blocking body has one or more of its overlaps by adjacent blocking bodies corresponding recesses which, in the tap position kxd given by the dependency, face the adjacent blocking body or bodies.

With such a dependency circuit, the Hahnwelle Turn the lever only when the recesses of the locking body of the adjacent taps match the locking body of the relevant Hahnes face. In all other positions, the relevant shift lever is locked.

With a relatively simple structure of this dependency circuit, it has the advantage that any number of Taps in the circuit can be connected to each other.

It helps simplify the dependency circuit when the locking bodies consist of washers that are placed under the gearshift levers and placed over the valve bodies

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Is the dependency attitude of several cocks from the start provided, it may be advisable to use those in the dependency circuit interconnected taps in a common Housing to accommodate.

For a better understanding, the invention is based on the following two exemplary embodiments explained in more detail j it show

Fig. 1 in plan view of 2 ball valves that are used in the invention Dependency circuits are connected to each other,

FIG. 2 is a side view of the object according to FIG. 1,

Fig. 3 shows a further embodiment of the invention in which three ball valves are connected to one another in a dependency circuit and

Fig. 4 is a plan view of the object according to Fig. 3.

In Fig »1 2 ball handles are shown, the valve body with 1 and 2 are designated. The tap housing is in a compressed air line 3 installed, which is the drive line for a Represents centrifugal pump. The medium conveyed by the pump runs through a line in which the tap housing 2 is installed is. Apart from their size, the taps are designed identically.

Switching shafts lead to the chicks seated in the housings 4 or 5. Each selector shaft has a Joraaixadtas »part 6 which is followed by a straight section 7, the outline of which is polygonal. This part ends at one in diameter enlarged file 8. On the shaft section 7 is a Shift lever 9 put on and with the help of a screw clamp blocked. Between the paragraph formed by! Part 8 and the Screw clamp 10, a locking body 11 is switched on, which rotates with the shaft 4 and is disk-shaped in the illustrated embodiment.

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The locking body of the cock 2 is denoted by 12.

The disks of Fig. 12 have an outline formed by a circle. The tap housings 1 and 2 are connected to one another in this way and arranged to one another that the blocking bodies of 12 adjacent taps partially overlap one another.

From Pig. 1 also shows that the discs of the locking body 11 and 12 having rotational symmetry to the Axes of the shafts 4 and 5 'are arranged.

Each locking body has a recess 13 or 14. The recess corresponds to the overlap of the two locking bodies and is therefore shaped like a segment of a circle.

The recess 13 of the locking body 11 is arranged so that they in the cock position given by the addiction to the Locking body 12 faces. The same applies to the recess 14 in the locking body 12 with respect to the locking body 11.

As can be seen, the cock 2 can only be switched when the cock 1 is in the position shown in FIG. on the other hand tap 1 cannot be switched in this position. This requires the switching of the cock 2 in the direction of the arrow a, v / o passes through the recess 14 into the area of the locking body 11. Now the lever 9 in the direction of arrow b moves, the cock plug is adjusted accordingly.

The embodiment of the invention shown in FIGS. 3 and is shown, differs essentially from the embodiment of Figures 1 and 2 in that the 3 in one Dependency circuit interconnected taps, whose Parts are designated by 30, 31 and 32, are accommodated in a common housing 34. On the shaft 30 sits a disk-shaped locking body 33J the locking body 34 of the shaft

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BATH

31 is also disc-shaped and also carries MIe 32 a disk-shaped locking body 35 · The recesses in the locking bodies are marked with 36, 37 and 38 designated. Since the cock with the shaft 31 two cocks are adjacent, the locking body 34 has 2 recesses, namely the recesses 37 and 39

The dependency of the circuit of the taps can be seen from the Figures 3 and 4 are derived and therefore need no further explanation.

Patent claims s

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Claims (2)

Patent claims 1. Dependency circuit for taps from whose housings the switching shafts of the chicks are led out, with the Rotating the shafts gear levers serve thereby g ekennzei chnet that each control shaft (4,5; 30,32) outside of the housing (1,2; 34) one to their Axis rotationally symmetrical locking body (11, 12; 33-35) takes along and the housing to be switched as a function Taps are connected to one another and arranged to one another in such a way that the blocking bodies of adjacent taps are mutually exclusive cover, and that each locking body has one or more operrkorpeer corresponding to its overlap Has recesses (13 »Hj 36-39), which in the cock position given by the dependency to the or face the neighboring blocking bodies. 2. Dependency circuit according to claim 1, characterized in that the locking body of Discs are formed that dea cock housings arranged 3ind. Dependency circuit according to Claims 1 and 2, characterized in that the in the interconnected taps of the dependency circuit are housed in a common housing (34-). 209812/0519 Blank page f, i; s ";''. ι ί> ^! f