DE8135554U1 - HOSE BREAKAGE PROTECTION - Google Patents

Description

Hose rupture protection

The innovation concerns a hose rupture protection in the form a hose connection piece, in particular for LPG bottles Devices connected by means of a hose, essentially consisting of one in the event of a drop or leak the hose to prevent the gas from escaping.

The innovation is based on the task of a hose rupture protection device of the above kind to create, with a simple construction for a relatively large Nominal flow range is suitable.

This object is achieved according to the invention by the features specified in claim 1.

"C The further development of the innovation is based on the subclaims emerged.

An embodiment of the innovation is shown in the drawing and is described in more detail below.

The hose rupture protection is in the form of a hose connector formed, which is connected on the input side to a pressure regulator (not shown) and to which a hose (not shown) is connected on the outlet side, which leads to a consumer.

In a compensation chamber arranged axially in the connection piece 2

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2 ', a closing body 4 is mounted so as to be axially movable. It closes upon release or failure of the exhaust backpressure a central outlet opening 2 "with a seal 5. The input side of the compensation chamber 2 ¹ is formed by the end of an axially displaceable and provided with through-hole screw 6 which is screwed into the socket. 2 In the operating state, the is shown here, the closing body 4 is held by means of two springs 3.1 and 3.2 acting against one another on an annular extension 4 of the closing body 4 in the open position and in contact with the inflow opening 6 'or on the adjusting screw, respectively, for the purpose of lifting the closing body from The outlet opening is provided with a pin 10 which can be pressed into the compensation chamber 2 'against the pressure of a spring 12 and whose conical end corresponds to the annular projection 4' of the closing body 4. The pin 10 is provided with a push button 3 and, by means of a seal 8 sealed, 0 by a socket 11 guided. The closing body 4 is from the springs 3.1 and 3.2 in the axis of the compensation chamber 2 ^? held.

In the illustrated embodiment, it has an axially extending blind hole 4 "which starts from the end of the closing body facing the adjusting screw 6 and which is connected to the compensation ^{chamber via transverse bores 4"'which are located behind the shoulder 4 f when viewed from the closing body end} .

The closing body can also be made solid.

The following functional description provides further details of the innovation:

As already mentioned, the hose rupture protection is connected to a pressure regulator on the gas inlet side and on the outlet side.

connected to a hose. If you open the gas supply, Generally the valve of a gas cylinder, gas flows through the pressure regulator through an inlet nozzle 1 through the adjusting screw 6 and through the closing body into the compensation chamber 2 '. The current one The pressure difference between the inlet and outlet is so great that the force of the spring 3.2 is overcome by the closing body 4 and the gas path is blocked by applying the seal 5 to the outlet opening 2 ". By pressing the Push button 9 is the closing body 4 by means of

Pin 10 lifted from its seat in the outlet opening 6 ¹ so far that a pressure equalization takes place between the inlet and outlet. The force of the spring 3.2 is now large enough to hold the closing body 4 in the open position. The hose rupture protection closes when the pressure difference between the inlet and outlet is large enough to overcome the spring force. This value is between 100 and 110% of the nominal flow rate. When setting the hose rupture protection to a desired value, it is connected between a pressure regulator and a flow meter. When the gas path is open, adjusting screw 6 changes the distance between seal 5 and outlet opening 2 ″ so that the force of springs 3.1 and 3.2 to be overcome is within the required functional tolerance of 100-110% of the nominal flow rate.

The adjusting screw 6 is provided with a seal 7 arranged in a threaded cutout, which is for a Fixing the respective setting ensures. Against an adjustment from the outside, the adjusting screw 6 is through the

Inlet connector 1 protected.

Claims (4)

Meissner & Meissner PATENT ADVOCATE BU R O PATENTANWÄLTE DIPL-ING. W. MEISSNER (1980) DIPL-ING. P. E MEISSNER DlPL-ING. H.-J. PRESTING Approved representatives before the European Patent Office -Professional Representatives before the European Patent Office Your reference Your letter from Our reference HERBERTSTR. 22.1000 BERLIN 33 Pr / Ka / B December 2nd, 1981 Borrmann Brenner Berlin Company with limited liability Blücherstrasse 22
1000 Berlin 61 Hose rupture protection
Protection claims: \ First air fuse in the form of a hose connection \ Spigot, especially for use on liquid gas cylinders Hose connected devices, consisting essentially I BVS one due to falling off or leaking of the hose the outflow of the gas-preventing valve, characterized in that in an axially arranged in the connection piece (2) compensating chamber (2 ¹⁾ has a central outlet opening (2 ") of the Compensating chamber (2 ') when the outlet counterpressure slackens or fails to close the closing body (4) is centrally slidably mounted and in the operating state by means of two ^{springs (3.1 and 3.2) acting against one another on an annular extension (4 1} ) of the closing body (4-) in the open position and is held in the gas passage permitting system on the inflow opening (6 ¹ ) of the equalization chamber (2 ¹ ) that the inflow opening (6 ·) from the end of an axially adjustable, with passage TELEX: TELEGRAM:, _t TELEPHONE: _φ BANK ACCOUNT: POST CHECK ACCOUNT: 1-85844 INVENTION '\\ · .QERLIN '··' ■ '·' "'·" "BERLINER BANK AG. P. MEISSNER BLN-W Invent) BERLIN j "· 030/89 * 1 60 37 ·" ""; "*" · fePUN31 404737-103 '· · * «030/80 * 30-26 · ■ .'.-. * 369 ^ 716000 bore provided adjusting screw (6) is formed and that for the purpose of lifting the closure member (4) from the outlet opening (2 ^{i ()} is a projecting into the Ausgleichskannner (2 ^1), operable against spring pressure by means of push-button (9) pin (10 ) is provided, the conical end of which corresponds to the annular extension (M- ') of the closing body (40). 2. Hose rupture protection according to claim 1, characterized in that the closing body (4) has an axially extending blind hole (4 ") which extends from the end of the closing body facing the adjusting screw (6) and which is via transverse bores (M-" ¹ ), which, seen from the end of the closing body, are located behind the shoulder (4 '), is in communication with the compensation chamber. 3. Hose rupture protection according to claim 1, characterized in that that the closing body (4) is solid. 4. Hose rupture protection according to one of the preceding claims, characterized in that the closing body (4) is held by the springs (3.1 and 3.2) in the axis of the compensation chamber (2 '). Ill I »»