DE20007042U1 - Safety cabinet for the storage of explosive substances - Google Patents

Description

Safety cabinet for the storage of explosive substances

The safety cabinet for storing explosive substances reduces the explosive effect of the explosive substances stored in it if the substance is heated excessively, for example in the event of a fire. The safety cabinet consists of a body 1 and a lockable opening 2 (e.g. door, flap) so that the stored explosive substance is protected from unauthorized access. A mechanism is installed inside the cabinet which, in the event of a sudden increase in pressure, e.g. as a result of an explosion, releases a lock 6, e.g. the door lock, or the lock of several body parts with each other if the body consists of several parts. Any device that reacts to sudden pressure increases is suitable as a release mechanism, such as a piston 3, which is moved along its axis when the pressure increases and thus releases the lock 6 of a pressure relief opening 2, e.g. a door, a flap, etc., against the spring force of a spring 5, long before the maximum explosion pressure is reached in the safety cabinet and thus an early release of the explosion gases occurs. This creates a large opening (e.g. door opening) before a critical explosion pressure is reached and the gas can escape. This reduces the dam so much that the cabinet no longer explodes and the explosive effect and thus the resulting danger is significantly reduced.

State of the art with sources:

Today, mainly in the private sector, safes and solid steel cabinets are used by sports shooters, reloaders and hunters to store powder for loading cartridge cases. The holder of a permit for explosive substances is legally obliged to prevent unauthorized persons from accessing these substances. Containers that offer little or no resistance to unauthorized persons are not permitted. For this reason, people who have a permit for explosive substances (e.g. reloaders, sports shooters) mainly store these substances in safe cubes. In the event of a fire, there is a great risk of the explosive substance accidentally igniting. In an emergency, the extreme compression of the igniting substances in the safe would cause a massive explosion with unforeseeable, devastating consequences.

Object of the invention:

The invention is based on the object of creating a cabinet which, on the one hand, protects explosive substances from unauthorized access and, at the same time, in the event of a fire, reduces the risk to the life and limb of the persons present, as well as to property damage, compared to the cabinets commonly used today (e.g. safes).

The solution of the problem:

The above object is achieved according to the invention in that a release mechanism releases a larger relief opening in the event of a sudden increase in pressure, e.g. as a result of an explosion, which causes a large part of the combustion gas generated inside the cabinet to escape through the relief opening created before the maximum pressure is reached, thus preventing an uncontrolled explosion of the cabinet and thus significantly reducing the explosive effect and consequences.

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Safety cabinet for the storage of explosive substances

The invention relates to a safety cabinet for storing explosive substances, which reduces the explosive effect of the explosive substances stored in it in the event of an explosion, e.g. in the event of excessive heating in the event of a fire or vibration of the substance.

The safety cabinet consists of a body 1 and a lockable door 2, so that the stored explosive substance is protected from unauthorized access. If the pressure inside the safety cabinet suddenly increases due to an explosion, the pressure P moves a piston 3 along its axis, causing the locking arm 4 to pivot about its pivot point d against the spring force of the spring 5 and thus releasing the lock 6 of the door 2, which is normally operated with a key. The door 2 swings open by releasing the lock 6 and by the pressure inside the safety cabinet continuing to increase around the door hinge 7 and releases the relief opening.

Since the pressure increase during the detonation of explosive substances occurs gradually, i.e. not in an infinitely short time, and the release mechanism can be set so that the mechanism reacts to smaller pressure increases, the safety cabinet releases the door lock 6 early in the explosion stage, while the explosion pressure is still building up, and thus a large pressure relief opening through the swinging door 2. This reduces unwanted damming, such as would occur in the event of a fire in a cabinet commonly used today for storing explosive substances (e.g. a safe). In the event of an explosion, the explosive effect is therefore extremely reduced, which also significantly reduces the risk to the life and limb of the people present (e.g. firefighters, police officers, etc.) and to possible damage to property (e.g. to buildings). It is also possible that additional relief holes may be incorporated into the cabinet (e.g. in the body), which can provide additional relief, but are not absolutely necessary. The function of the

Invention is also without additional
Relief holes in the safety cabinet full
effective and sufficient.

The safety cabinet would therefore be safer and better suited for the storage of explosive substances (e.g. nitrocellulose powder used for reloading cartridge cases) than a
conventional safe cube, as used thousands of times today, for example by sports shooters, reloaders and hunters for storing nitrocellulose powder.

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Claims (1)

1. Safety cabinet, in particular for the storage of explosive substances, consisting of a body and a lockable opening, characterized in that in the event of a sudden increase in pressure inside the cabinet, a mechanism opens a large gas relief opening for the high-pressure explosion gases and the gases can escape through the opening created before a seal occurs and thus a dangerous increase in pressure inside the cabinet with subsequent explosion.