DE102007016087A1 - Universal cannon, for firefighting or riot control, has a barrel within a hollow cylinder forming propellant and charging chambers - Google Patents

Abstract

The universal cannon, using water or a powder and the like, has a propellant (2) and projection (3) chamber in succession. A barrel (4) is within a hollow cylindrical body (1) with an end opening (11) and at least one mantle opening (8,9) forming a ring chamber. The barrel slides along the hollow cylinder line. A valve lock (5,6) is between the inner wall of the cylinder and the outer wall of the barrel, to divide the ring chamber into the two chamber sections, opened by sliding the barrel. The base end (7) forms a seat.

Description

The Invention relates to a universal cannon for accelerating fluids, Gases, powders and solids (projectiles) in pulsed operation in universal application areas, such. B. when deleting Fires, in the riot control etc.

State of the art

From the DE 102 21 024 A1 . DE 195 09 322 A1 and DE 10 2005 037 846 A1 High pressure fluid guns or fluid accelerators are known.

One The main disadvantage of these fluid guns is that the Pressure chamber with the propellant and the chamber for the Fluid (working fluid) are arranged one behind the other and in the interest of a limited length affecting the flow Guide tubes or nozzles was omitted. Further the known constructions are sensitive to kickback and need an end closure.

task

Of the The present invention is based on the following objects: improvement acceleration to achieve high range, extensive Absorb the kickback, keep the track free the charge by dispensing with end caps or membranes as well as a universal application range by licensing fluid, powdery, gaseous working medium loads and of projectiles.

pictures

1 - Universal cannon

2 - Control of the universal cannon

Description of the invention

1 - Universal cannon

The continuous cylindrical barrel ( 4 ) is designed as an open tube and is located on axis A in the middle of the propellant chamber ( 2 ) and the working medium chamber ( 3 ), which follow each other and through a valve ( 6 ) are separated from each other. The barrel is freely movable in the longitudinal direction on axis A.

Only at the current, the propellant chamber ( 2 ) a cylindrical inner wall for insulation ( 11 ), so that the outer wall of the barrel ( 4 ) in the remaining area the inner wall of propellant chamber ( 2 ) and working medium chamber ( 3 ) and thus limits it to a tube.

At a suitable location (in the case of fluids and powders in the center of the barrel, on projectiles at the beginning of the run), the ring-like closure ( 5 ). He moves the barrel against a close-fitting valve ( 6 ), so that propellant chamber ( 2 ) through inlet opening ( 8th ) and working fluid chamber (fluids or powder) ( 3 ) through inlet opening ( 9 ) [respectively. Solid state charge (projectile), see below] can be charged separately.

In the state of charge or closed state, the beginning of run ( 4 ) at the bottom of the working medium chamber ( 7 ) and is there opposite the working medium chamber ( 3 ) isolated. In this position, the closure sits ( 5 ) firmly on the valve ( 6 ) on.

When opening and closing, the shutter ( 5 ) the run ( 4 ), which, when opened, means that the closure ( 5 ) the run ( 4 ) from the ground ( 7 ) in the flow direction and the valve ( 6 ) opens. The propellant passes through the valve ( 6 ) in the working medium chamber ( 3 ) and presses the working medium over the now over the bottom of the working medium chamber ( 7 ), where the work equipment is accelerated and deployed.

Solid-state operation

For this purpose, the closure ( 5 ) at the beginning of the run and the valve ( 6 ) close, on the ground ( 7 ), so that propellant (about 8th ) and solid charge (projectile) (over 7 ) can be loaded separately from each other. As a result, the propellant chamber ( 2 ) the whole room outside the run ( 4 ) and forms the pressure chamber; the working medium chamber ( 3 ) and inlet ( 9 ) disappears. The projectile is placed over the removable floor ( 7 ) introduced appropriately, the universal cannon loaded with it. The bottom flap ( 7 ) must then be closed again.

Foam production (aid operation

Via the aid inlet ( 10 ) in the bottom of the working medium chamber ( 3 ), a second ingredient may be added to the jet.

Beam profile modification

The run ( 4 ) can be provided with solids on the inside with guides. For fluids, a nozzle can be attached to the outlet.

2 - Control of the universal cannon

The working pressure built up via the pressure connection (C) is controlled by the automatically switching safety latch ( 14 ) checked. In case of impermissible overpressure in the propellant chamber ( 2 ) it closes automatically and can only be opened manually. It is thus controlled by the internal pressure of the propellant chamber.

The strength of a throttle ( 12 ) with connection to the switching chamber (S) automatically adjusts according to the internal pressure of the propellant chamber ( 2 ) one. Dominates the propellant chamber ( 2 ) only one residual pressure after release, the throttle bleeds ( 12 ) the switching chamber (S).

About the trigger ( 13 ) enters the pressure in the switching chamber (S) and acts on the switching piston (K) on the closure ( 5 ), which then opens.

If during the ejection of the charge the recoil force (W) starts to act, the throttle, which was set automatically to this effect, brakes ( 12 ) these off. The kickback force passes through the barrel closure on the control piston and is opposite to the switch-on.

This is the complete recoil in the throttle ( 12 ) compensated by work. Specifically, the run is pressed against the ground by the kickback. The tightly connected with the barrel closure transmits this force to the switching piston (K), which is suitably mounted in the switching chamber (S). The recoil fizzles in the throttle ( 12 ).

When the internal pressure of the pressure chamber ( 2 ) is completely gone, the switching chamber (S) is deaerated unthrottled. If there is no supply pressure to the switching chamber (S) via the trigger ( 13 ), because this has not been operated, the spring (F) acts directly on the switching piston (K) in the closing direction and the valve ( 6 ) and the barrel sits back on the bottom flap ( 7 ) on. A permanently pressed trigger ( 13 ) leaves the valve ( 6 ), which is why the cannon is not loaded in this case.

1

hollow cylindrical Body of the universal cannon

2

Propellant chamber

3

Working medium chamber

4

tubular Body (barrel)

5

shutter

6

Valve

7

receiving seat (Running seat or magazine piston)

8th

Propellant inlet

9

Working fluid inlet

10

Hilfsmittelauslaß

11

opening with insulation

12

throttle

13

trigger

14

safety bolt

A

axis

S

switching chamber

K

switching piston

F

feather

C

pressure connection

W

repulsive force

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10221024 A1 [0002]
• - DE 19509322 A1 [0002]
• DE 102005037846 A1 [0002]

Claims (11)

Universal cannon with sequentially arranged propellant and working medium chamber ( 2 . 3 ), as well as a closure arranged between them, which for ejecting the working fluid via a trigger ( 13 ), characterized in that within a hollow cylindrical body ( 1 ) with at least one frontal opening ( 11 ) and at least one jacket opening ( 8th . 9 ) a tubular body ( 4 ) is arranged with a smaller cross section, so that an annular chamber is formed, the tubular body ( 4 ) in the longitudinal direction of the outer body ( 1 ) is arranged displaceably, wherein it is on one side of the end face (bottom) of the hollow cylindrical body ( 1 ) and access from the annular chamber into the tubular body ( 4 ) and sealed on the other side in the frontal opening ( 11 ), between the inner wall of the outer body ( 1 ) and the outer wall of the tubular body ( 4 ) a valve closure ( 5 . 6 ) is arranged, which the annular chamber in the propellant and working medium chamber ( 2 . 3 ) and which is formed during a movement of the tubular body ( 4 ) opens in the longitudinal direction. Universal cannon according to claim 1, characterized in that the hollow cylindrical body ( 1 ) and the tubular body ( 4 ) have a common central axis in the longitudinal direction. Universal cannon according to claim 1 or 2, characterized in that the propellant and working medium chamber ( 2 . 3 ) each have its own entrance ( 8th . 9 ) feature. Universal cannon according to one of claims 1 to 3, characterized in that the end face (bottom) of the hollow cylindrical body ( 1 ) a sealing bearing surface or a receiving seat ( 7 ) for the end of the tubular body ( 4 ) having. Universal cannon according to claim 4, characterized in that the sealing bearing surface or the receiving seat ( 7 ) has a closable flap. Universal cannon according to one of claims 1 to 5, characterized in that the valve closure ( 5 . 6 ) from a locking ring ( 5 ), which is connected to the hollow cylindrical body ( 1 ) and a valve ring ( 6 ) on the tubular body ( 4 ), wherein the locking ring ( 5 ) and the valve ring ( 6 ) in the closed position of the end of the tubular body ( 4 ) tightly against each other. Universal cannon according to one of claims 1 to 6, characterized in that through the end face (bottom) of the hollow cylindrical body ( 1 ) a supply line with outlet ( 10 ) for aids in the tubular body ( 4 ) is guided. Universal cannon according to one of claims 1 to 7, characterized in that the tubular body ( 4 ) is designed as a barrel, preferably trains. Universal cannon according to one of claims 1 to 8, characterized in that the closure valve ( 5 . 6 ) in the end region of the tubular body ( 4 ) near the sealing bearing surface or the receiving seat ( 7 ) is arranged. Universal cannon according to claim 5 or 9, characterized in that the closable flap of the sealing bearing surface or the receiving seat ( 7 ) with a magazine port for into the tubular body ( 4 ) is to be introduced for launching solid can be coupled. Universal cannon according to one of claims 1 to 10, characterized in that the propellant chamber ( 2 ) via a pressure medium line with a throttle ( 12 ) and the throttle ( 12 ) further has a connection to the switching chamber of the switching piston, so that the oppositely acting pressures in the switching chamber, once resulting from the pressurization with the propellant when triggered and once as a result of the recoil by transmitting movement forces of the tubular body ( 4 ) on the control piston through the throttle ( 12 ) are compensated.