RU161364U1 - MANUAL FIRE BARREL - Google Patents

Abstract

1. A manual fire barrel, including a body with a handle, a coupling head at the entrance and a head for adjusting the spray angle at the exit, a hollow water damper connected by a rod to the screen, is rigidly connected to the tubular body, the flow blocking mechanism is designed to allow movement to be transmitted to the locking element, the flow control mechanism is made with the possibility of reciprocating movement of the movable element along the guide groove inside the tubular body, made in the form of a sleeve, with connection of the movable element with the flow regulator, the movable element is made in the form of a nozzle body, at one end of which a spray angle control head is fixed, and its other end is located inside the tubular body, characterized in that the flow shutoff mechanism is equipped with a lever located along the body handle and made with the possibility of transmitting movement to the locking element in the form of a clip with an annular groove sealed in the insert with the possibility of its abutment on a spring placed inside the insert, hermetically mounted on the inner surface of the tubular body, the lever in its middle part is configured to cover the body and is attached with screws included in the annular groove of the clip, the upper end of the lever is provided with an elliptical hole for the axis, made in the form of a cylindrical rod fixed in the barrel body, the flow shutoff mechanism is additionally equipped with a plug coaxially connected by a screw with a water damper. 2. The device according to claim 1, characterized in that a latch n

Description

The invention relates to fire extinguishing devices, namely, universal combined manual fire barrels designed for forming and directing a direct solid stream or a sprayed stream, mainly in the mode of pulsed supply of a fire extinguishing mixture.

A device is known “Manual fire barrel” (RF patent No. 133745, CL. A62C 31/03, publ. 2013), which includes a housing with a handle, a coupling sleeve at the inlet and a head for adjusting the spray angle at the outlet, a water damper connected to screen, a flow control mechanism made to provide rotational-translational movement along the guide groove in the housing for connecting the movable element to the flow controller. The movable element is made in the form of a nozzle body, at one end of which a regulation head is fixed, and its other end is located inside the tubular body in the form of a sleeve, with the possibility of reciprocating movement of the nozzle body inside the sleeve along the flow axis. The flow shutoff mechanism is equipped with a handle made with the possibility of transmitting movement to the locking element, which in turn is connected by a rod to the handle and made in the form of a ball in the form of a ball with the possibility of its rotation around its own axis arbitrarily located along the flow of the working fluid. The rod is hollow and rigidly connected to the tubular body. The flow control mechanism and the flow shutoff mechanism are made in the form of independent bodies.

The specified fire barrel when used ensures the achievement of technical characteristics that comply with regulatory documents, and in some parameters it surpasses them.

The reasons that impede the use of the known device include the fact that the well-known barrel is not intended for supplying a jet of fire extinguishing substance (OTV) in the pulse extinguishing mode.

The closest technical solution for the combination of essential features and the technical result achieved is the patent of the Russian Federation No. 133745, which is selected as a prototype.

The task to which the proposed utility model is directed is to develop the design of a universal hand-held fire barrel that provides both a constant feed mode and a pulsed (intermittent) OTF feed mode.

When using the proposed utility model provides:

- a pulsed (intermittent) feed of direct or atomized flux of OTV with the possibility of regulating the flow rate and shutting off the supply of OTV;

- preservation of the function of supplying the OTV in the form of a solid jet with the ability to control the geometry of the jet, the consumption of the OTV, and blocking the stream of the OTV;

- achievement of all technical characteristics determined by regulatory documents (range of the jet, flow rate of liquid or foam);

- the ability to use a medium foam generator for extinguishing under certain conditions.

Achieving the indicated technical results is ensured by the fact that a manual fire barrel, including a housing with a handle, a coupling sleeve at the entrance and a spray angle adjustment head at the output, a hollow water damper connected by a rod to the screen, is rigidly connected to the tubular body, the flow shutoff mechanism is made to ensure the possibility of transmitting movement to the locking element, the flow control mechanism is made with the possibility of reciprocating movement of the movable element along the guide groove inside the tubular body, made in the form of a sleeve, with the connection of the movable element with the flow regulator, the movable element is made in the form of a nozzle body, at one end of which a spray angle control head is fixed, and its other end is located inside the tubular body, characterized in that, the flow shutoff mechanism is equipped with a lever located along the handle and made with the possibility of transmitting movement to the locking element in the form of a clip with an annular groove, hermetically installed into the insert with the possibility of its abutment on a spring placed inside the insert, hermetically mounted on the inner surface of the tubular body, the lever in its middle part is made to enclose the body and is attached with screws included in the annular groove of the clip, the upper end of the lever is provided with an elliptical hole for axis, made in the form of a cylindrical rod fixed in the barrel body, the flow blocking mechanism is additionally equipped with a plug coaxially connected by a screw with a water damper.

The possibility of supplying a continuous stream of OTV can be ensured by the fact that in the lower part of the handle must be installed latch fixed position of the lever.

The device can be made with the possibility of additional equipment with a medium foam generator, which expands the possibilities of using a manual fire barrel.

For additional spraying, the device can be equipped with a turbine stabilizer installed in the control head.

The design of the proposed utility model is illustrated in the drawing. In FIG. 1 shows a general view of a manual universal fire barrel in a section, where 1 is a body, 2 is a handle, 3 is a coupling head at the inlet, 4 is a head for adjusting the spray angle at the outlet, 5 is a water damper, 6 is a hollow rod, 7 is a screen in the form poppet valve, 8 - flow control mechanism, 9 - flow shutoff mechanism. The flow control mechanism (8) includes a screen (7), a rod (6), 10 - a tubular body in the form of a sleeve, a water damper (5), 11 - a nozzle body that acts as a movable element, and is made with the possibility of its reciprocating displacements inside the tubular body (10) along the flow axis. The movement is carried out using a screw - 12, screwed into the flow regulator - 13 and included in the spiral groove (not shown in the drawing) of the nozzle body (11).

The flow shutoff mechanism (9) contains a lever - 14 located along the handle (2) and configured to transmit reciprocating motion to the locking element in the form of a clip - 15 with an annular groove, which is hermetically installed in the insert - 16 with the possibility of its stop on the spring - 17. The spring (17) is placed inside the insert (16), hermetically mounted on the inner surface of the tubular body (10). The lever (14) in its middle part is made with the possibility of covering the housing (1) and is attached on both sides by screws - 18 included in the annular groove of the clamp (15), the upper end of the lever (14) is provided with an opening - 19 of an elliptical shape for the axis - 20 made in the form of a cylindrical rod fixed in the barrel body (1). The flow shutoff mechanism (9) is additionally equipped with a plug - 21, coaxially connected by a screw (22) with a water damper (5).

At the inlet of the tubular body (10), a shank 23 is installed with free rotation by means of a bulk bearing 24. A filter 25 is installed at the inlet of the shank (23). The external threaded portion of the shank (23) is hermetically connected to the coupling head (3).

In the lower part of the handle (2) a freely rotating bracket - 26 is installed for fixing the fixed position of the lever (14.)

The foam generator is not shown in the drawing.

To ensure a change in the angle of the spray torch OTV, the head for adjusting the angle of the spray torch (4) can perform a reciprocating movement using a screw (27), screwed into the head (4) and entering the spiral groove of the nozzle body (11) (not shown shown) when turning the head (4) clockwise or counterclockwise.

To ensure additional spray (to the smallest drops), a turbine stabilizer (28) is installed in the head of the spray angle control (4) by means of a clamp (29).

Manual fire barrel works as follows.

In preparation for operation, the barrel, which has a housing (1) and a handle (2), is connected with a coupling head (3) to the connecting head of the fire hose (not shown in a general view), the bracket (26) is disengaged from the lever (14), at the same time, the lever (14) occupies a position maximally distant from the handle (2).

When extinguishing, the barrel is sent to the combustion zone. By rotating the flow regulator (13), the required OTW flow rate is established. When the flow regulator (13) rotates, the nozzle body (11) reciprocates, connected to the flow regulator (13) using a screw (12), which is screwed into the flow regulator (13) and enters the spiral groove of the nozzle (11). Moving relative to the rod (6) fixedly fixed in the fairing (5), with the disk screen (7) fixed on it, the nozzle body (11) increases or decreases the annular gap between it and the screen (7). So regulate the flow of OTV at the exit from the barrel.

Rotating the control head (4) sets the shape of the jet from straight to sprayed at an angle of up to 120 degrees.

The turbine stabilizer (28) installed in the head (4) by means of the clamp (29), rotating around its axis, additionally sprays up to small droplets falling on it at an angle of OTV.

When the OTV is supplied in the form of water or foam under pressure, the barrel is held in the hand by the handle (2), while when the fire hose is rotated, due to the articulation of the coupling head (3), the rotational moment is not transmitted to the handle (2).

To implement the OTF pulsed feed mode, the flow blocking mechanism (9) is opened, for which the lever (14) is pressed against the handle (2) of the housing (1) and the clamp (15) is moved through the screws (18), compressing the spring (17) in the opposite direction OTV movement. Thus, a gap is formed between the plug (21) and the clamp (15) for the passage of OTV. By releasing and pressing the lever (14) to the handle (2), with the necessary frequency, create time-varying impulses for the supply of OTV (for example, 1-2 seconds).

To implement the continuous supply of OTV, the lever (14) is pressed against the handle (2) and held in this position for the time necessary to extinguish.

The proposed barrel can be switched to the mode of blocking the flow of OTV. To do this, the lever (14) is released and it, under the action of the spring (17), goes to the extreme position as far as possible from the handle (14) and presses the clamp (15) to the plug (21) with the screws (18).

In case of loss of control over the barrel, the specified mode of overlapping the OTV flow occurs automatically.

The proposed fire manual barrel allows you to generate and direct a pulsed feed of direct and sprayed OTV jets at various costs,

retains these functions during traditional feeding in the continuous supply mode of the OTV stream and provides a mode of blocking the OTV stream.

Tests conducted by an accredited laboratory showed that the proposed design of hand-held universal fire trunks is designed to form and direct a direct continuous or sprayed water jet, in the mode of short-term (pulsed) delivery and medium-mechanical air foam of medium multiplicity in the continuous supply mode, as well as for overlapping filing OTV.

When using universal hand barrels, the necessary regulatory characteristics are provided. At the same time, the minimum time of two impulses of the supply of OTV was determined experimentally and for effective operation of the barrel is not more than 4 seconds.

The test results are presented in the table.

The manual fire barrel has stepless adjustment of the angle of the spray torch from a continuous stream to a water curtain (120) of various densities to protect the shank from heat exposure and adjusts the flow rate of water with a fixed position.

The barrel is equipped with a medium-sized foam generator with a quick-detachable connection to obtain air-mechanical foam.

The barrel complies with the requirements of the Russian standard GOST S 53331-2009 “Fire equipment. Manual fire barrels General technical requirements. Test Methods

The tests also confirmed that the proposed design of a universal manual fire barrel provides:

- the mode of short-term (pulsed) supply of an aqueous OTV solution, and, if necessary, a long-term supply (continuous), as well as a flow shutoff mode;

- change in the geometry of the jet;

- changes in OTV consumption;

- the ability to quickly install and remove a medium foam generator.

Tests of the proposed hand barrel have proven that this device is aimed at achieving its goals and provides regulated technical characteristics when used.

Claims (4)

1. A manual fire barrel, including a body with a handle, a coupling head at the entrance and a head for adjusting the spray angle at the exit, a hollow water damper connected by a rod to the screen, is rigidly connected to the tubular body, the flow blocking mechanism is designed to allow movement to be transmitted to the locking element, the flow control mechanism is made with the possibility of reciprocating movement of the movable element along the guide groove inside the tubular body, made in the form of a sleeve, with connection of the movable element with the flow regulator, the movable element is made in the form of a nozzle body, at one end of which a spray angle control head is fixed, and its other end is located inside the tubular body, characterized in that the flow shutoff mechanism is equipped with a lever located along the body handle and made with the possibility of transmitting movement to the locking element in the form of a clip with an annular groove sealed in the insert with the possibility of its abutment on a spring placed inside the insert, hermetically mounted on the inner surface of the tubular body, the lever in its middle part is configured to cover the body and is attached with screws included in the annular groove of the clip, the upper end of the lever is provided with an elliptical hole for the axis, made in the form of a cylindrical rod fixed in the barrel body, the flow shutoff mechanism is additionally equipped with a plug coaxially connected by a screw with a water damper. 2. The device according to p. 1, characterized in that in the lower part of the handle is installed a lock of the fixed position of the lever. 3. The device according to p. 1, characterized in that it is made with the possibility of additional equipment generator foam medium frequency. 4. The device according to p. 1, characterized in that it is additionally equipped with a turbine stabilizer installed in the control head.

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