RU2355449C1 - Rescuing device for people suffering distress in high-rise structures - Google Patents

Abstract

FIELD: rescuing engineering.

SUBSTANCE: device is provided with rope-suspended cradle. The cradle is displaced along H-shaped guides fixed to the wall of high building. The ropes are implemented with the central conductors and ensured with high-temperature insulation. Manual switch is installed in cradle. It controls cradle movement. The device is provided with electro-pneumatic delay relay of voltage supply to driven electric motors.

EFFECT: possibility of invention applying for various purposes such as fire extinguishing, glass washing, painting, advertising posters deployment on the buildings.

10 dwg

Description

The invention relates to rescue equipment.

Known devices for the evacuation of people on high-rise buildings, for example, according to the patent of the Russian Federation 2297862 А62В 1/20. This device, located inside the building, can lower on top of people who are fixed on the rope.

Known devices containing building cradles suspended on the ropes outside the building and able to move vertically and horizontally, for example, the device according to the patent of the Russian Federation 2074299 Е04С 3/16, which can be used to evacuate people from the upper floors of the building. The disadvantage of this device is that it is unsuitable for immediate use and completely unsuitable for skyscrapers.

The closest device to the claimed one, adopted as a prototype, is a device diagram published in the journal "Youth Technology", 2004, 9, pp. 8-11. This device has a long cradle suspended on two ropes and moving vertically along two I-rails mounted on the wall of a high-rise building. However, any specific devices with which the cradle could be reversibly moved along the wall of a high-rise building, how to control this movement, how to keep the device ready for immediate use - this was not found in the mentioned article and in other sources.

The task is to create a device with which, keeping the device ready for immediate use for many years, it would be possible to control from the cradle the reversible movements of the cradle along the guides mounted on the wall of a high-rise building.

The task becomes possible because the device has a cradle suspended on cables, moving along the vertical I-beams of a high-rise building, two drums with cables rolled up on them, while the drums have gear crowns interacting with the output gears of the drive motors, and the cables are made with passing in their center conductors with heat-resistant insulation, such as asbestos filaments, a device for controlling reverse movements of threads, a device for controlling it can be reversed by moving the cradle, while it has a manual switch fixed to the cradle that controls the cradle movement, limit switches interacting with cam strips mounted on I-rails, ring brush transitions, conductors in cables powered by low-voltage direct current, and an electropneumatic relay for delaying the voltage electric motors, while the device has two solenoids, the windings of which are enclosed in two sealed tanks located one at a time th axis, and two pistons, interconnected by a rod, while on the rod movable contacts of a three-phase switch are fixed, supplying current to electric motors.

Figure 1 shows the end part of a high-rise building, equipped with one cradle, ready for immediate descent to the basement floors of a high-rise building.

Figure 2 is a front view of a tall building; the dotted line shows another possibility of mounting the cradle on the front of a tall building.

Figure 3 - diagram of the suspension of the cradle and the placement of drive equipment on the attic of a high-rise building.

Figure 4 - slider, its position on the I-beam (I-beam) guide, and the connection with the cradle.

Figure 5 - interaction diagram of the limit switch, mounted on a slider, with a cam plate mounted on an I-rail; the slider is shown in section along aa in figure 4.

Figure 6 - electro-pneumatic relay with a delayed response time, in partial section.

In Fig.7 is a section of an electro-pneumatic relay according to BB in Fig.6.

On Fig is a diagram of the supply of three-phase voltage to the stationary contacts of the electro-pneumatic relay.

In Fig.9 is a manual low voltage current switch commanding the cradle movement.

Figure 10 is a diagram of the interaction of device elements with each other.

The device has a cradle 3 suspended on ropes 1, 2, moving along I-rails mounted on the wall of a high-rise building 5, two drums 6, 7 with ropes 1, 2 rolled up on them, while the drum cheeks have gear crowns interacting with output gears 8 , 9 gearboxes 10, 11 of three-phase drive motors 12, 13, while the cables are made with conductors 14 passing through their center with heat-resistant insulation, for example asbestos threads, a device for moving the cradle having a manual switch fixed to the cradle the cradle 15, which controls the movement of the cradle, the limit switches 16, 17, interacting with the cam strips 18, mounted on the I-rails 4, and on one of the guides the cam bar is fixed at the bottom, and on the second guide at the top, ring brush transitions 19, 20, energizing low-voltage direct current conductors 14 in cables, electro-pneumatic relay 21 for delaying the supply of alternating industrial voltage to electric motors 12, 13, two solenoids, windings 22, 23 of which are enclosed in two 24, 25 tanks located on the same axis and two pistons 26, 27 connected to each other by the rod 28, while the movable contacts 29 of the three-phase switch are fixed on the rod, supplying current to the electric motors 12, 18. The number 30 denotes a softening spring, 31 is a constant current source low voltage, 32 - fixed contacts, 33 - three-wire cable, 34, 35 - control valves, 36, 37 - springs, 38 - guide wheel, 39 - base plates, 40 - platform, ball bearings, 42 - screws, 43 - slider , 44 - flexible movable cable.

The device operates as follows. The cradle is always upstairs with the switch 15 in the “stand” position. When moving the switch handle to the left - to the “down” position - the cradle starts to move down until the roller of the limit switch 16 touches the cam plate 18 and the cradle drive automatically shuts off, and the cradle, after a certain mileage with deceleration, stops on the basement floors of the high-rise building.

On the way down, the cradle can be stopped to receive people, and even the cradle can be directed upwards, i.e. reverse the movement of the cradle. To do this, from the “down” position, the handle of the switch can be immediately set to the “up” position, and a time relay will work, which will automatically enter the necessary time delay to give time for the preliminary stop of the engines, and if you rise to the starting position, the stop will occur automatically - the cam guide on the other guide 4 will work and the cradle will stop smoothly by touching the softening spring 30.

The circuit of Fig. 10 shows the interaction of the elements of the device, when, at the top, from the "stand" position, the handle of the switch 15 is turned to the "down" position, then the low-voltage direct current along the circuit indicated by the dotted line in the circuit will go through a closed limit switch 16, along conductor 14, through a rotating junction 19, a solenoid coil 22, a low voltage source 31, which may be, for example, a semiconductor rectifier or a battery. In this case, the solenoidal winding 22 pulls the iron core and moves the movable contacts 28 to the left - to the fixed contacts 32, as a result of a three-phase current through the cores of the cable 33 drives the motors 12, 13, which drive the gears 10, 11 through the output gears 8, 9, 11 drums 6, 7 and the cradle begins to descend. With the “up” command, the electric motors will rotate in the opposite direction, lifting the cradle up.

The change in the time delay value of the electro-pneumatic relay 21 is achieved by controlling the speed of entry into the air tanks 24, 25 using valves 34, 35 that change the cross-sectional area of the through holes in the walls of the tanks 24, 25. Automatic locking of the handle of the switch 15 to the "stand" position is provided by springs 36, 37 (in extreme positions it is held by solenoids).

The cradle in a high-rise building is one or several - on all sides of the high-rise building. One cradle can be used to perform other tasks, such as extinguishing a fire, washing windows, painting, deploying advertising panels on the wall of a building. If the cradle is one, then to carry out work on all sides of the building there should be guides 4 and corresponding openings in the walls of the attic, while the drums 6, 7, the guide wheels 38, the base plates 39, are fixed not fixedly, but on movable platforms 40, which can move on ball bearings 41 along the metal sheets that cover the attic floor to other openings.

With the cradle lowered down, the mounting screws 42 connecting the sliders 43 to the cradle are removed, the sliders are lifted up, and the cradle is moved to a new place on other guides along which the sliders, after the corresponding movements of the platforms 40, are lowered down, where the sliders are reconnected to the cradle.

The beneficial effect of the device is as follows:

- for many years it can always be ready for immediate use to save people;

- control of the cradle movements is achieved by the simplest manual switch located in the cradle;

- the presence of an electro-pneumatic time relay simplifies and makes it reliable;

- the time relay creates the necessary delay in supplying voltage to the drive motors, if, in a hectic situation, the handle of the manual switch from the "down" position will be immediately transferred to the "up" position;

- the device can be used to perform other tasks.

Claims (1)

A device for rescuing people in distress in a high-rise building, containing a cradle suspended on ropes, moving along vertical I-rails mounted on the walls of a high-rise building, two drums with cables rolled up on them, characterized in that the device for controlling the reversible movements of the cradle has an electro-pneumatic relay the time delay for supplying current to three-phase drive motors moving the cradle, while the relay has two solenoids, the windings of which are enclosed in two sealed tanks located in one straight line and two pistons interconnected by a rod, while the movable contacts of a three-phase switch supplying current to electric motors are fixed on the rod, while a manual switch commanding the movement of the cradle and two limit switches interacting with the cradle are fixed with cam rails mounted on I-rails.

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