SU1735536A1 - Device for evacuating people from building - Google Patents

Abstract

Use: stairs to move from floor to floor in case of evacuation from the building. SUMMARY OF THE INVENTION: The ladder is fixed to the manhole cover with the center of the cover plate with the ladder on the axle plate. The ladder fixation means is made in the form of spring-loaded legs, fixed on the uprights by means of axles for interacting with the rotary stage. In the uprights, glands are mounted, connected in the upper part with a movable cross member, interacting with the cam of the lid handle. In the lower part of the rod are connected to the axles. 4 il.

Description

The invention relates to the construction, in particular to devices for evacuation from a building.

The aim of the invention is to improve the usability.

FIG. 1 shows a device for evacuating a building, its operating position; in fig. 2 - the same non-working position; in fig. 3 is a view A of FIG. one; FIG. 4 is a view B in FIG. one,

The device for evacuating the building includes a lid 1 with a handle 2, mounted on the frame 3 of the hatch, using a hinge 4, a ladder with uprights 5 and steps 6, rigidly attached to the lid 1 using support elements 7, and a latch 8 in the non-working position of the ladder, placed in the ceiling.

The device is equipped with rods 9, missed inside the racks 5 of the ladder, with a crosspiece 10 placed in slots x 11 on the upper ends of the racks and connected to the rods 9 by a cam 12 fixed on the handle

2caps 1 and spring-loaded springs 13 that interact telescopically mounted on the lower ends of the pillars, compress the legs 14, cooperating with the latch 8 of the non-working position of the ladder, and depressions 15 on the underlying floor 16, which are located in slots 17 at the lower ends of the pillars 4 and connected to the legs 14 and with the rods 9, and the control cable 18. At the same time, the ladder is fixed to the lid 1 with the center of the lid of the lid with the ladder on the lid axis 4, and the lower stage 19 is rotatably mounted z-axis 20 by a control yuschegotrosa 18 and reacting with the axes 16.

The device also includes limiters 21 of the tilt angle of the ladder fixed on the steps x 5 with the possibility of interaction with the edges of the hatch overlap.

3can be fitted with a gasket 22 to seal the hatch

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The device for evacuation from the building works as follows.

In the off position (Fig. 2), the lid 1 closes the opening in the overlap, the ladder is installed along the overlap and is held by the lock 8 of the inactive position of the ladder.

To transfer the ladder to the working position (Fig. 1) from the overlap on which it is fixed, rotate the handle 2. The cam 12, rotating and interacting with the crossbar 10, pulls the spring-loaded legs 14 out of engagement with the retainer 8 with the help of tear g 9. Thereafter, the cover 1 rotates around the axis 4 until the stops 21 are plunged into the overlap, and the cam 12 is moved to its original position. The legs 14 by the force of the compressed spring 13, which is adjusted by the nuts 23 located on the legs, are immersed in the recesses 15 on the underlying floor, and thus the ladder is fixed in the working position.

To transfer the ladder to its working position from the underlying overlap by means of the control cable 18, the lower stage 19 rotates around the axis 20, interacting with the axes 16, which at the same time, move into the slot 17, pull the legs 14 out of engagement with the latch 8, then the ladder with the cable 18 continues to rotate around the axis 4 until the stoppers 21 abut the floor. After that, the cable 18 is loosened, and the legs 14 are immersed in the recesses 15 by the force of the spring 13

To transfer the ladder to the non-operating position, the legs are removed from the recesses 15 by means of the handle 2 or the control cable 18, turn it in the opposite direction and fix the legs 14 on the fixture 8 in the ceiling.

By placing the center of the body of the lid with the ladder on the lid axis, the translation of the ladder is greatly facilitated, which increases the convenience of operation.

Since the lid and the ladder attached to it create a balanced system, when the ladder is transferred, it cannot fall sharply, which increases the safety of operation.

The additional support of the legs of the stair racks to the non-operating position lock allows part of the load of the weight of the cover with the ladder to be transferred to the frame of the hatch. This provides pressure on the gasket, which improves tightness and eliminates

Claims (1)

the need for special devices to tighten the cover to the seal. The invention of the device for the evacuation of the building, including hinged on frame the hatch, cover the lid with the handle, the ladder with the uprights and the steps and the lock for the non-working position of the ladder, placed in the overlap, characterized in that, in order to increase ease of operation, it is provided with ti missing inside the racks of the ladder, a crosspiece placed in the slots on the upper ends of the racks and connected to the t by a cam mounted on the handle covers and interacting with the crossbar, telescopically mounted spring-loaded legs at the lower ends of the uprights, which interact with the lock of the inactive position and recesses on the underlying overlap, the axles connected to the legs placed in the slots of the uprights and connected to the lower ends of the pull rod, and the control cable, the ladder being attached to the cover with the center of the cover plate with the ladder on the cover axis, and the lower step is installed rotatable by means of a control cable and interacting with the axles Sh eight 22 vm Phie.1 Y / 22 Bug a FIG. nineteen Type B Figs