RU2331449C2 - Manual fire-hose barrel - Google Patents

Abstract

FIELD: fire engineering.

SUBSTANCE: manual fire-hose barrel incorporates a casing with handles. The barrel nozzle accommodates one end of a strong thin-wall hose attached thereto, while the other end houses a jet splitting deflector with an adjustable circular gap. The said gap optimum size is automatically adjusted by flexible-material deflector spokes. Out of operation, the hose and deflector are laid stepwise into the box-like container or coiled into the round container.

EFFECT: simpler design, higher reliability of operation inside closed premises.

3 cl, 7 dwg

Description

The invention relates to fire fighting equipment, and in particular to devices designed to extinguish a fire with extinguishing fluids, mainly water.

Known manual fire barrel, consisting of a housing with a conical converging nozzle nozzle and handles located on the housing of the coil with a ratchet wheel and a trigger, a deflector for the formation of a fine axisymmetric fan stream connected to the drum coil using a steel spring wire or elastic tube [1 ].

A manual fire barrel is also known, in which the deflector is connected to a reeling-reeling coil with a fishing line [2].

A portable pulse fire extinguisher is also known, in which the compact part of the jet is placed in a thin-walled strong hose, one end of which is fixed to the nozzle of the fire barrel, and a deflector for breaking the jet with the possibility of regulating the annular gap is installed on the other free end [3].

Known [1, 2] fire barrels have low reliability due to the loss of a rope or spring wire from the compact part of the jet and are difficult to manufacture and operate. A portable pulse fire extinguisher [3] is difficult to manufacture, it does not provide for automatic change of the gap in the annular nozzle.

The purpose of the invention is to simplify the design and increase the reliability of the manual fire barrel when extinguishing burning side and front walls indoors, as well as objects around them with an axisymmetric, finely dispersed fan stream of water. This goal is achieved by the fact that maintaining the optimal annular gap is carried out by making the spokes of the deflector made of elastic material, as well as installing the deflector on the end of the telescopic rod mounted along the axis of the barrel inside the free stream, in the idle position of the barrel, the hose is shuttled in a box-shaped container or spirally in a round container with pockets for the deflector.

Figure 1 shows a manual fire barrel with a thin-walled strong hose in working condition; figure 2 - connection of the deflector with a hose, figure 3 - the barrel is inoperative when shuttle laying hose with a deflector in a container; figure 4 - spiral laying of the hose in a round container (top view); 5 is a side view of a round container with an assembled hose; figure 6 - connection of the telescopic rod with the deflector and nozzle; Fig.7 is a view of a reel for winding and winding a fishing line.

The manual fire barrel contains a housing 1 with a coupling half 2, nozzle nozzle 3, handles 4, a thin-walled hose 5, mounted on the nozzle and at the free end of which a nozzle 6 is fixed, on the threaded part of which there is a sleeve 8 of the deflector 7. The sleeve from self-loosening is fixed with a lock nut 9 The hose 5 on the nozzle and the pipe is secured with clamps 10. The sleeve 8 and the reflector 7 of the deflector are connected by spokes 11. The deflector and pipe can be metal or polymer. A hose container 12 is installed on the barrel body and nozzle and has a window on the front side and a pocket 13 for the deflector on the rear side. In the idle state of the fire barrel, the hose fits into the container shuttle. In another modification, a round container 15 with spokes 16 is installed on axis 14 for spiral laying of the hose inoperative. The container is closed by a cover 17. In another embodiment, the deflector 7 inside the jet is held by a telescopic rod mounted in the guide of the crosspiece 18 of the nozzle 3, the large tube 19 is held in the crosspiece by the head 20, the tubes 21 enter each other with the possibility of movement and their ends are rolled, a wire end rod 22 is fixed at one end with a deflector and the other end is connected by a cord 23 to a coil 25 mounted on an arm 24 of a curved body 1. There is a handle 26 for rotating the coil.

Manual fire barrel works as follows. When extinguishing burning objects near the side and front walls through a window or door, as well as the walls themselves, the fighter connects the proposed manual fire barrel to the fire hose, directs the barrel towards the window and opens the shut-off valve (not shown). Water flows under pressure into the hose 5, laid in the container 12, and forces the hose and deflector out of the container with force. The deflector strikes the glass of the window and breaks them, the hose with the deflector penetrate into the room. Water, hitting the deflector 7, is sprayed in the form of an axisymmetric fan stream. Depending on the shape of the working surface of the deflector, the fan stream can be directed back, forward, and also perpendicular to the hose under the cone. The fan stream abundantly moistens burning objects, the inner surface of the front and side walls, as well as the floor and ceiling, dramatically lowering the temperature and extinguishing the fire. The fighter is outdoors at this time. When working with a spiral-laid hose in a round container 15, the fighter first removes the cover 17 and the hose is unwound when the container 15 is rotated around axis 14.

When executing a holding deflector 7 of the device in the form of a telescopic composite rod, when water is supplied to the deflector under the influence of a jet, it is carried away into the room by extending the rods. The rod-tubes 19, 21, 22 are located in the center of the jet, a change in the quenching zone is achieved by increasing or decreasing the length of the telescopic rod by unwinding or winding the fishing line 23 onto the coil 25.

The stability of the manual fire barrel is achieved by preliminary regulation of the annular gap between the working surface of the deflector 7 and the pipe 6 (figure 2). When making spokes 11 from an elastic material, for example rubber, the size of the annular gap can be maintained optimal automatically (with increasing pressure, the gap increases).

After the work is completed, the water is shut off, the fire hose is disconnected, the empty hose with the deflector is put shuttle in a box-shaped container or spirally in a round container, and the telescopic rod is pushed inside the fire barrel by winding the fishing line onto the reel.

The proposed options for manual fire barrels are simple to manufacture, reliable in operation, can effectively extinguish internal fires and have no reactive power.

Sources taken into account

1. RU 2015702 C1 (publ. 15.07.1994).

2. SU 241573 A (publ. 04/25/1969).

3. RU 2019216 C1 (publ. 09/15/1994).

Claims (3)

1. Manual fire barrel, consisting of a body with handles, a conical converging nozzle, a thin-walled strong hose, one end of which is fixed to the nozzle of the fire barrel, and a baffle for breaking the jet with the possibility of regulating the annular exit gap is installed on the other free end, characterized in that automatic maintenance of the optimal annular gap is carried out by the implementation of the spokes of the deflector from an elastic material. 2. The barrel according to claim 1, characterized in that the hose is laid when the barrel is inoperatively shuttled into a box-shaped container or spirally into a round container with a pocket for the deflector. 3. The barrel according to claim 1, characterized in that the deflector is held in position by a telescopic rod mounted along the axis of the barrel in the crosspiece of the nozzle nozzle with the ability to control the output of the deflector.

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