RU220584U1 - DEVICE FOR PROTECTING FIREFIGHTERS FROM THERMAL RADIATION - Google Patents

Abstract

The utility model relates to the field of fire fighting equipment and can be used in fires to protect a fireman performing combat operations with a manual fire nozzle from thermal radiation. A device for protecting a firefighter from thermal radiation contains a frame of an upper section with an opening to allow placement of a fire nozzle and a lower section with supports. The upper section consists of front and rear frames located between each other with a gap, on which mesh shielding panels are fixed on all sides. At the top of the upper section there are two nozzles directed oppositely in the vertical direction. A downward-facing nozzle is installed at the bottom. The nozzles are connected to a filter, a rubber hose and a coupling for connection to the fire hose. The lower section consists of front and rear frames located between each other with a gap, on which mesh shielding panels are fixed on the front and back sides. The upper and lower sections of the frame are connected telescopically and are fixed in working position with spring buttons and clamps. A technical result is achieved - reducing the weight of the device while increasing its mobility. 4 salary f-ly, 4 ill.

Description

The utility model relates to the field of fire fighting equipment and can be used in fires to protect a fireman performing combat operations with a manual fire nozzle from thermal radiation.

A device for protection against heat flow is known from the prior art (patent RU 193180, IPC A62C2/06, published 10/16/2019), containing a screen in the central part of which there is an opening to allow the monitor to move vertically, a water supply unit including a pipe with holes, the screen is made of a metal sheet, the pipe with holes is installed in the upper part of the panel on its outer side, and the opening in the screen is equipped with a movable damper. In the preferred embodiment of the device for protecting fire-fighting equipment from heat flow, a hole is made in the movable damper to accommodate a fire monitor.

A device for protecting a firefighter from thermal radiation is known (patent RU 188009, IPC A62C2/08, published March 26, 2019), which contains a frame including upper, central and lower components, which are front and rear frames located with a gap between them. In the upper component, mesh panels are fixed on the front frame, and solid panels on the rear frame. In the central component, mesh panels are fixed to the front and rear frames. The lower component is made solid. In the upper part of the central component of the frame there is an opening equipped with a curtain, which is a mesh panel. In the lower component there is a second opening with a continuous curtain. Along the central vertical axis in the central component, nozzles are installed, connected by a pipeline to the coupling, one of which is located at the top of the upper part and is oriented upward, the second is installed at the bottom of the lower part of the central component and is oriented upward, and two are installed at the edges of the opening in the upper part of the central component additional nozzles oriented away from the opening. The device is equipped with supports installed on the rear frame and on the sides of the lower part of the central component, and additional supports are rigidly fixed on the edges and at the bottom of the lower component on the rear frame on both sides. The device is equipped with two handles fixed in the center of the central component of the frame from the rear side and perpendicular to its surface and a lever for securing the retractable supports, fixed on the rear frame, at the bottom and in the center of the lower part of the central component of the frame.

The closest to the claimed one is a device for protecting a firefighter from thermal radiation (patent RU 2521328, IPC A62C2/08, published on June 27, 2014), containing a frame with an opening to allow placement of a fire nozzle connected to a fire hose, mesh panels installed on both sides of the frame with a gap between them, and a water irrigation system including nozzles. The frame is made of at least two sections, hingedly connected to each other and equipped with a lock; the nozzles of the water irrigation system, located between the panels, are fixed to the frame and connected by a pipeline to a coupling, the ends of which are equipped with heads intended for connection with the fire nozzle and fire hose.

The disadvantage of these devices is the low level of firefighter protection from the heat flow generated by the fire.

The technical problem of the utility model is the development of a device to protect a firefighter from thermal radiation, providing expansion of the arsenal of technical means in this area, by simplifying the design while increasing reliability, making the device compact so that it can be transported without special means, moved in narrow passages and used in firefighting fires inside buildings, and expanding the capabilities of the device by increasing its maneuverability when performing combat operations with a fire nozzle.

The technical result of the utility model is to increase firefighter safety.

The technical result is achieved in that in a device for protecting a firefighter from thermal radiation, containing a frame of upper and lower sections, with an opening in the upper section to allow placement of a fire nozzle, while the upper section consists of front and rear frames located between each other with a gap , on which mesh shielding panels are fixed, between which a water irrigation system with nozzles is placed, and the lower section is equipped with a support, according to the solution, the lower section consists of front and rear frames located with a gap between them, on which mesh shielding panels are fixed, while the lower and the upper sections are connected telescopically.

The upper section additionally contains a handle attached to its side.

The opening is made in the central part of the upper section.

The device additionally contains a filter for each nozzle.

The support is made in the form of legs installed with the possibility of rotation in a horizontal plane.

The claimed utility model is illustrated by drawings, in Fig. 1 – shows a front view of the device; in fig. 2 – water irrigation system of the device; in fig. 3 – side view of the device, Fig. 4 – view of the device when folded.

Positions in the drawings indicate:

1 - upper section;

2 - lower section;

3 - opening;

4 - support;

5 - shielding panels;

6, 7, 8 - nozzles;

9 - front frame;

10 - rear frame;

11 - filter;

12 - rubber sleeve;

13 - tip;

14 - pipelines;

15, 16 - handles.

The device for protecting a firefighter from thermal radiation includes upper 1 and lower 2 sections telescopically connected to each other. Sections 1 and 2 in working position are fixed with spring buttons and clamps. In the central part of the upper section 1 there is an opening 3 designed to accommodate a manual fire nozzle. The device has supports 4 (legs) hingedly attached to the lower section 2.

The frame of the upper section 1 consists of a front 9 and a rear 10 frames located between each other with a gap. On the frames 9 and 10 of the frames, mesh shielding panels 5 are fixed on all sides.

The frame of the lower section 2 consists of a front 9 and a rear 10 frames located between each other with a gap. On the frames 9 and 10 of the frames, on the front and reverse (rear) sides, mesh shielding panels 5 are fixed.

The device is equipped with a water irrigation system consisting of pipelines 14, nozzles 6, 8 and 7 installed in the space between frames 9 and 10 of the frame of the upper section 1, a filter 11 and a rubber hose 12 with a tip 13. Nozzles 6, 8 and 7 are designed for spraying water in the space between the shielding panels 5, are fixed in the central part of the upper section 1 and connected to each other by pipelines 14.

At the top of the upper section 1, two oppositely directed nozzles 6 and 8 are installed. Nozzle 6 is directed downwards, and nozzle 8 is directed upwards of the device. At the bottom of the upper section 1 there is a nozzle 7, which is directed downwards of the device. Nozzles 6, 8 and 7 are connected by pipeline 14 to a filter 11, designed to purify the water supplied to nozzles 6, 8 and 7 from solid particles that may be present in it. As filter 11, a filter of any design can be used to purify water from solid particles. On the other hand, a rubber sleeve 12 with a tip 13 is attached to the filter 11, which serves to supply water to the water irrigation system. The tip 13 is a coupling, the ends of which are equipped with heads for connection with a fire nozzle and a fire hose (not shown in the figures). A nipple valve is built into the coupling. There is a filter mesh installed inside the coupling, which is attached to the coupling with a screw.

In the upper section 1, a handle 16 is fixed perpendicular to its surface. The upper section 1 is also equipped with a handle 15, fixed on the side, intended for carrying it in a folded position.

A device for protecting a firefighter from thermal radiation works as follows.

To install the device in the working position, the lower section 2 is pulled out from the upper section 1, fixed with spring buttons with latches and installed on supports 4. A fire hose (not shown) is attached to the coupling connecting head, and a manual fire nozzle (not shown) is attached to the connecting head. The socket of the connecting valve installed in the coupling body is connected to rubber sleeve 12.

The device operates by connecting the coupling to the fire nozzle and fire hose. In this case, water is supplied to the fire nozzle and, accordingly, to the coupling by supplying water under operating pressure from a fire-fighting water supply system, or using a fire truck, or a pumping unit from a fire-fighting tank or open reservoir.

Water through the water irrigation system of the device enters the nozzles 6, 8 and 7 and is sprayed by them in the space between the mesh shielding panels 5, creating a vapor-droplet-air environment in the space between these panels.

A fire nozzle (not shown) is placed in opening 3 to extinguish the fire.

The device is moved to the place of use in a folded state. The movement is carried out by grasping the handles 15 and 16. In this case, the handle 16 does not allow the device to open and at the same time fixes the device on the hand in a vertical position, preventing the device from tipping over and creating convenience when carrying it.

The device has a high degree of attenuation of thermal radiation, which makes it possible to effectively protect a firefighter from thermal radiation during severe fires. In addition, the device can be exposed to thermal radiation for a long time without losing its heat-protective properties.

The inventive device in the folded position has compact dimensions, this allows it to be used in cases where it is necessary to move the device along flights of stairs, narrow corridors, or pass through doorways with it. The small dimensions of the device also eliminate the problem of transporting it to the fire site. The low weight of the device allows for more effective fire extinguishing, as its maneuverability increases.

Thus, the present utility model provides firefighters with a new, highly effective means of protection against thermal radiation during severe fires in buildings and other objects with narrow passages, corridors, staircases, etc.

Claims (5)

1. A device for protecting a firefighter from thermal radiation, containing a frame of an upper section with an opening to allow placement of a fire nozzle and a lower section with supports, wherein the upper section consists of front and rear frames spaced apart with a gap, on which there are mesh shielding panels are fixed, two nozzles directed oppositely directed vertically are installed in the upper part of the upper section, and a nozzle directed downward is installed in the lower part, while the nozzles are connected to a filter, a rubber hose and a coupling for connecting to a fire hose, characterized in that the lower the section consists of front and rear frames located with a gap between them, on which, on the front and back sides, mesh shielding panels are fixed, while the upper and lower sections of the frame are connected telescopically and are fixed in working position with spring buttons and latches. 2. The device according to claim 1, characterized in that the upper section additionally contains a handle attached to its side. 3. The device according to claim 1, characterized in that the opening is made in the central part of the upper section. 4. The device according to claim 1, characterized in that it additionally contains a filter for each nozzle. 5. The device according to claim 1, characterized in that the support is made in the form of legs installed with the ability to rotate in a horizontal plane.