RU199687U1 - DESTRUCTIBLE ELEMENT OF EASILY REMOVABLE WINDOW STRUCTURE - Google Patents

Abstract

The utility model relates to the field of construction, namely to destructible elements of easily removable window structures used at explosive objects. The destructible element of an easily resettable window structure is made in the form of a destructible bar intended for rigid connection with the frame of the window structure, as well as for fixing the locking element, while a cut is made in the cross section of the bar. The technical result achieved by the use of the claimed utility model consists in increasing the speed of dropping the window structure when exposed to a blast wave and the possibility of dropping the structure at lower pressure. 1 wp f-ly, 2y.

Description

The utility model relates to the field of construction, namely to destructible elements of easily removable window structures used at explosive objects.

In an explosion situation inside the building, the pressure increases significantly, which can destroy the supporting structures of the building. In order to quickly reduce the overpressure, easily release window structures are used, equipped with elements that are destructible in an explosion, allowing the window structure to be thrown outward.

From patent RU 63403, publ. 05/27/2007, a knot for fastening an easily resettable window structure is known, containing a combined self-tapping screw, consisting of a stud (self-tapping stud), while the stud is screwed into the frame of the window block, passing through an annular gap in the wall of the base element, and on the second end of the stud through a threaded connection a destructible element is screwed on, which is a fluoroplastic disk with a calibrated thickness, installed with a retainer on a spacer sleeve, previously put on a hairpin. At increased pressure, the fluoroplastic disc (destructible element) collapses, thereby releasing the self-tapping stud from the connection with the base element of the attachment unit - the angle metal profile, the spacer sleeves also fly off the self-tapping stud, thereby the attachment unit loses additional fixation, collapses, and the window structure flies out out.

In the given technical solution, under the influence of a blast wave and an increase in pressure, the entire frame window unit with a glass unit is destroyed, the wall openings to which the structure is attached are damaged, which significantly reduces the efficiency of using the known device.

From patent RU164517, publ. 09/10/2016, a destructible unit of an easily resettable window is known, which includes a stud, which is rigidly fixed at one end with the frame by means of a rivet nut, and at the other end is connected by means of a threaded connection with a washer, and a caprolon spacer sleeve with a washer attached to it, while the washer is a PTFE disc equipped with a spring clip. Fixing the washer with a spring retainer in this solution does not provide reliable fastening, pressing on one side can lead to a distortion of the washer relative to the stud and the engagement of elements during an explosion and, consequently, a decrease in the effectiveness of the release of the structure.

Also from patent RU 2709365, publ. 12/17/2019, a destructible element of an easily resettable window is known, made in a video response strip, rigidly installed in the frame at the locations of the locking pin located on the locking mechanism, while the striker is made of composite material. At the same time, the striker is made of metal and polycarbonate fasteners.

The disadvantage of the known technical solution is the ineffectiveness of the actuation of the destructible element when the pressure in the room is higher than the required (standard).

The technical result achieved by the use of the claimed utility model consists in increasing the speed of dropping the window structure when exposed to a blast wave and the possibility of dropping the structure at lower pressure values.

To achieve the specified technical result, a destructible element of an easily resettable window structure is proposed, made in the form of a destructible strip, intended for rigid connection with the frame of the window structure, as well as for fixing the locking element, characterized in that a cut is made in the cross section of the strip.

The breakable bar can be made of composite material.

The essence of the utility model is illustrated by the following drawings: FIG. 1 shows a longitudinal section of a window structure, with:

1 - frame;

2 - window sash;

3 - destructible bar;

4 - locking element on perimeter window fittings.

FIG. 2 shows a front view of a destructible bar, where:

5 - cut in the cross-section of the bar.

The destructible element of an easily resettable window structure contains a destructible strip 3, designed for rigid connection with the frame 1, and also designed to fix the locking element 4. Plank 3 contains a cut 5 made in cross section.

The utility model works as follows.

In the frame 1 of an easily resettable window structure, made, for example, of PVC, a destructible striker 3 is rigidly installed, for example, with the use of self-tapping screws. In this case, the bar 3 can be made, for example, of a composite material such as fluoroplastic. Plank 3 is installed at the location of the locking element 4, for example, the locking pin located on the locking mechanism to provide the required clearance between the frame 1 and the sash 2. At the moment of the explosion, the plank 3 weakened by the cut 5 collapses along the cut line, releasing the locking pin 4 located on the locking mechanism, which leads to the ejection of the sash 2 and the release of the excess pressure caused by the blast wave, without destroying the supporting structures of the building.

When the maximum permissible pressure in the room is reached, the structurally incorporated weakened section is destroyed, which has an individual size, calculated in a separate technical task, depending on the size of the structure. The use of various sizes of the weakened section makes it possible to produce easily release window structures, taking into account different requirements for the parameters of the upper limit of the pressure at which the bar will break and the pressure will be released.

Thus, the implementation of a destructible element of an easily resettable window structure in the form of a destructible strip, weakened by sawing in its cross-section, designed to connect it to the supporting structure of the window (frame), as well as to fix the locking element, provides timely ejection of the sash and release of excess pressure during explosion time.

Claims (2)

1. A destructible element of an easily resettable window structure, made in the form of a destructible bar, intended for rigid connection with the frame of the window structure, as well as for fixing the locking element, characterized in that a cut is made in the cross section of the bar. 2. A destructible element of an easily resettable window structure, characterized in that the destructible bar is made of composite material.

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