RU2570487C1 - Device for gravity descent along rope - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: claimed device comprises the housing, friction drum element for the user fastening to said housing. Friction drum is rigidly coupled with the housing. Means for high-speed controlled descent is composed of the rope tension regulator, the rope being wound on said drum.

EFFECT: simplified design and higher reliability.

2 cl, 3 dwg

Description

The invention relates to rescue equipment that are used in emergency evacuation from a height.

A device is known for gravitational descent along a cable, comprising a housing in which a rotating friction drum, a hand brake and an element for attaching a user to the housing are located [1].

The known device does not allow you to control the high-speed descent of the lifeguard from the surface of the earth. The design is multi-component and therefore unreliable.

Closest to the proposed one is a device for gravitational descent along the cable, containing friction pads spring-loaded to the cable, an attachment element to the user, and a means of speed controlled descent made in the form of a vibrator that interacts with the cable through the block [2]. Thanks to such a device, a lifeguard from the surface of the earth can control the descent of even incapacitated people. The disadvantage of this device is the design complexity, since it contains a vibrator, and therefore the reliability of the device is insufficient.

The basis of the invention is the task of creating a device for gravitational descent along the cable, in which the speed control from the ground is controlled by changing the friction forces between the drum and the cable wound on it by the tension of the latter, which simplifies the design of the device and increases its reliability.

The problem is solved in that in a device for gravitational descent along a cable containing a housing in which the friction drum is located, a fastening element of the user to the housing and a means of speed controlled descent, the friction drum is rigidly connected to the housing, and the speed descent tool is made in the form of a tension regulator rope wound on a friction drum.

This embodiment of the device allows the lifeguard to control high-speed descent from the ground without the use of a vibrator, which simplifies the design and increases the reliability of the device.

The cable tension regulator can be made in the form of a lifeguard chair interacting with the cable, which is equipped with a stop in the ground.

The essence of the invention is illustrated in FIG. 1, in FIG. 2 shows a device in section, and in FIG. 3 is a section AA in FIG. 2.

The device for gravitational descent along the cable 1 contains a housing 2, to which the friction drum 3 is rigidly connected, the fastening element 4 to the user / is in the bag 5 /, the lifeguard chair 6, which interacts with the cable through the block 7 and is equipped with a stop in the ground 8, and also elements of additional braking 9, 10. The cable 1 is wound on a drum 3; one end of the cable is fixed to the structure, and the other to the tree.

Guided descent along the cable is as follows.

The rescuer, who is sitting in the chair 6, rises, leaning his hands against the abutment into the ground 8, thereby weakening the tension of the cable 1 / and, accordingly, reducing the friction forces between the cable and the friction drum 3 /. The bag with the victim 5 smoothly moves down under the action of the weight force, taking into account friction between the cable and the friction drum, the lowering of the speed of descent is carried out by increasing the tension of the cable by gradually releasing the stop 8 by the rescuer / i.e., by increasing the friction forces between the cable and the drum /.

Thus, the proposed device allows you to control the movement of the victim from the surface of the earth without forced oscillations, which simplifies the design and increases its reliability.

The technical result of using the device is to reduce the duration of the deployment of rescue operations and to save the cost of manufacturing the device.

Information sources

1. Rescue devices / Demin A.S., Kataeva A.S., Katrasov P.A., Voronin B.I. Overview information. - M.: GNITSUI, 1985, p. 13, fig. 5.

2. UA No. 20140186, cl. A62B 1/14, dated 9.01.2014, No. 92185.

Claims (2)

1. A device for gravitational descent along the cable, comprising a housing in which the friction drum is placed, an attachment element of the user to the housing and a means of speed controlled descent, characterized in that the friction drum is rigidly connected to the body, and the speed controlled descent is made in the form of a tension regulator rope wound on a friction drum. 2. The device according to claim 1, characterized in that the cable tension regulator is made in the form of a lifeguard interacting with the creole cable, which is equipped with a stop in the ground.

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