RU95727U1 - SLIDING INTERIOR LATTICE FOR WINDOWS AND DOORS - Google Patents

Abstract

 A sliding inner grill for windows and doors, containing a web placed in the guide frame of a C-shaped profile in the form of vertical struts connected by an accordion of metal tape, equipped with an upper roller suspension and a lower locking mechanism, characterized in that the vertical racks are connected in the central part to each other and the side of the frame on the fixed side of the web by a coiled coil spring, and the locking mechanism is made in the form of a spring installed in front of the grille with the approach under the frame flush with the floor nennoy bracket with cantilevered fixed on it a vertical pin freely inserted from below into the hole in the base frame between the end stanchions with the moving side fabric when retracted lattice.

Description

The utility model relates to the arrangement and technical equipment of dwellings and enclosed spaces for work and public events, providing a room for the safety of people in case of fires.

Known internal metal window and door fixed and folding shutters with horizontal blinds, mounted on the wall, or in the openings of windows and doors / see, for example, "Reference publication. Do it yourself: a complete guide ”/ Jackson A., Day D. - M .: Ast: Astrel, 2008, pp. 221-222 [1] /.

Also known are roll / roll / inner metal lattices for windows and doors of the ALUTECH type, consisting of a roller shutter sheet in the form of horizontal lamellas interconnected, elastically folded into a roll placed above the window and equipped with a mechanism for lowering the sheet down and locking it with side latches on the lower end profile roller shutters / see. Lattices. Roller shutters., Company Alutech Eco-Life - Rolling grilles, 2002 [2] /.

All known designs of shutters and gratings, providing reliable protection against penetration into the premises, reduce fire safety, blocking the way out when evacuating people. This is due to the extreme complexity of actuating the mechanisms for opening the grilles from the inside of the premises in conditions of fire, high temperature and strong smoke of the room, and especially when lighting is disturbed. The connection in some designs of gratings with electric drives, as well as the connection of the latter to fire alarm sensors, in most cases does not solve the problems due to the significant likelihood of failure of the electrical circuits of the electric drives and alarm sensors in case of fire.

The closest device of the same purpose to the claimed utility model in terms of essential features is a sliding inner grill for windows and doors of the Amra-M type, containing a web placed in the guide frame of a C-shaped profile in the form of tubular vertical racks connected by an accordion of metal tape equipped with an upper roller suspension and a lower locking mechanism / see utility model certificate No. 14448, 2000 [3] /, and adopted as a prototype.

The disadvantages of the device of the prototype is the reduction of fire safety due to the blocking of the evacuation routes by the gratings and the difficulty of manually opening the gratings from the inside in a fire, elevated temperature and severe smoke in the room, especially when the room is disturbed.

The essence of the utility model is to create a design with a simple, reliable and effective mechanism for automatically opening a sliding inner grill on windows and doors in a fire, namely: when the temperature in the room increases, the smoke is very smoky, panic occurs, and people move in the direction of the windows and doors under arising conditions.

The technical result is an increase in the safety of people in case of fire due to the facilitation of the possibility of their emergency evacuation.

The specified technical result in the implementation of the utility model is achieved by the fact that in the well-known internal lattice for windows and doors containing a web placed in a C-shaped guide frame in the form of vertical posts connected by an accordion of a metal tape equipped with an upper roller suspension and a lower locking mechanism, the peculiarity lies in the fact that the vertical struts are connected in the central part between themselves and the side of the frame from the fixed side of the canvas by a twisted coil spring, and I fix s mechanism is designed as a grating placed in front with a stop for the frame flush with the floor bracket with a spring loaded cantilever secured therein a vertical pin freely inserted from below into the hole in the base frame between the end stanchions with the moving side fabric when retracted lattice.

The essence of the utility model is illustrated by the drawing, which schematically depicts in a general view the proposed sliding inner grating with fixing sectional mechanisms / as an example of using the grating, the window / is shown here.

The sliding inner grill for windows 1 and doors contains a web placed in the guide frame 2 of the C-shaped profile in the form of vertical steel posts 3 connected by an accordion 4 of a metal strip / the principle of synchronous scissors is laid in the construction of the web of pillars 3 and accordion 4. In this case, the grill is equipped with an upper roller suspension and a lower locking mechanism. The suspension is installed in the upper guide profile of the frame 2, its design fully reproduces the prototype device [3] / two or more carriages with rollers, carriages in the form of a housing with two closed bearings in pairs on the same axis /, and therefore the suspension structure is not shown in the drawing . Vertical posts 3 are connected in their central part by a coiled coil spring 5 to each other in series and to the side of the frame 2 on the fixed side of the web / in the figure this is the right side /. In this case, the spring 5 passes through the holes in the uprights 3 and is attached with its right end in the figure to the side of the frame 2. The lower locking mechanism is made in the form of a front mounted grill 3, 4 with the bottom coming under the frame 2 flush with the floor, spring-loaded with curved springs 6 bar 7. the latter is made with a width of the order of 30-40 cm, is tightly inserted into the recess either between the floor boards flush with the last, or in the recess in the parquet, plastic, etc. flooring material. In this case, the curved springs 6 are attached with special screws 8 to the base 9 of the floor / wooden beams, concrete, etc. /. Above, in the bar 7, from its edge extending under the frame 2, a vertical pin 10 is cantilevered, freely inserted from below into the hole 11 at the base of the frame 2 between the extreme steel posts 12 from the movable side of the grating blade when it is retracted.

The work of the proposed device is as follows.

In normal operation, the spring 5 is initially compressed, the grate is open, elasticly assembled into an accordion and pressed by the spring 5 to the side of the frame 2 from the fixed side of the grate / right in the figure /.

If it is necessary to close the lattice with overcoming the efforts of the spring 5, it moves to the left, at the same time, the person steps on the spring-loaded bar 7, the latter flexes elastically downward, the pin 10 also goes down, the guide of the lower base of the frame 2 is released, and the extreme racks 12 of the lattice web are pressed by a person the sidewall of the frame 2 from the movable / left / side of the moving canvas. At the same time, holding the canvas of the grill 3, 4 in the retracted position, the person leaves the strap 7, the pin 10 with the strap 7 rises up, enters between the posts 12 of steel and locks the grill. In emergency mode / fire, severe smoke in the room, turning off the lights, etc. / people naturally move in the direction of doors and windows closed by the grilles / even when the electricity is turned off, the windows stand out due to street lighting /, while someone in any case, it steps on the spring-loaded bar 7, the window and door grille is released and, under the action of the spring 5, the window / door / jumps open. Plank 7 specifically to attract attention has a color different from the floor, in order to avoid accidental advancing / for example, during dancing, etc. / a ribbon or the like may be pulled near the window. Nothing terrible will happen even if you step on the bar 7 - just the lattice will open, and then it will be closed again.

The proposed device can play a crucial role in the event of a fire, in a panic, full smoke, and especially when the lighting of the room fails. At the same time, open grilles from the inside are of considerable complexity, but there is an absolute likelihood of a plank on the floor opening of one of the people in the face of panic.

Claims (1)

A sliding inner grill for windows and doors, containing a web placed in the guide frame of a C-shaped profile in the form of vertical struts connected by an accordion of metal tape, equipped with an upper roller suspension and a lower locking mechanism, characterized in that the vertical racks are connected in the central part to each other and the side of the frame on the fixed side of the web with a coiled coil spring, and the locking mechanism is made in the form of a spring installed in front of the grill with the approach under the frame flush with the floor nennoy bracket with cantilevered fixed on it a vertical pin freely inserted from below into the hole in the base frame between the end stanchions with the moving side fabric when retracted lattice.