CN2432951Y

CN2432951Y - Winding-drum-type lowering device

Info

Publication number: CN2432951Y
Application number: CN 00218465
Authority: CN
Inventors: 曾经雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-19
Filing date: 2000-07-19
Publication date: 2001-06-06
Anticipated expiration: 2010-07-19

Abstract

The utility model relates to a winding-drum-type lowering device for high building persons to escape in an emergency. The utility model has the unique characteristic of compact structure, and a damping mechanism of the utility model is positioned in a winding drum. A wire rope 5 drives the winding drum 4 to rotate when a suspension hook lowers down, and the winding drum causes a mandrel 15 to rotate in the opposite direction of the winding drum through gear rotation. When a small hammer 6 rotates, a centrifugal force of the small hammer pushes a friction disk 11 to shift rightward through a pendulum rod 7, a connecting rod 9, a regulating block 10, etc. The friction disk is contacted with a right cover 12 of the winding drum to generate frictional damping to realize lowering fall. No manual operation when persons in the process of fall, and thereby, the failure because of artificial factor (fluster, etc.) is avoided.

Description

A kind of roll type descending lifeline

The utility model is a kind of roll type descending lifeline.It is a kind of mechanical device, belongs to " lifesaving-fire-fighting classification ".

This descending lifeline is used for when breaking out of fire or accident, and the personnel that are in skyscraper jump off from window or balcony by this descending lifeline, arrive ground safely, reach the purpose of escape.

Its structure and operation principle are as follows.Housing 1 is suspended on the specific firm fulcrum of window frame or exterior wall by two lifting bolts.Reel 4 is enclosed within respectively on the axle journal of axle 15 the right and lefts with the form that is slidingly matched with the endoporus of its left side lid 2 and right lid 12.The two ends of axle 15 are by 16 supportings of the bearing on the housing 1.The right-hand member of the right lid 12 of reel is made internal gear, and it and transition gear 14 mesh, and transition gear 14 meshes with the gear 17 that is fixed on the axle 15 again.Be wound with steel wire rope 5 on the reel 4, the end of steel wire rope 5 is connecting suspension hook 20.The personnel that tie up safety belt when waist are connected with suspension hook 20 by hook and during because of deadweight decline, the rotation of rope belt movable reel.The internal gear of the right lid 12 of reel by transition gear 14 and gear 17 drive axles 15 with and on frictional disk 11 rotate.Since the relation of gear drive and speed change, the rotation direction of axle 15 and the direction of rotation of reel, and the rotating speed of while axle is about 3 times of drum speed.During axle 15 rotations, because action of centrifugal force, hand hammer 6 (has 3 or a plurality of, pressing circumferencial direction distributes) and fork 7 outwards swing around pivot pin 13, fork 7 promotes frictional disks 11 by connecting rod 9, regulating block 10 and moves to right that (axle journal of the endoporus of frictional disk 11 and axle 15 is for being slidingly matched, axle drives frictional disk 11 rotations by key 18), thereby frictional disk 11 is contacted with the left side of the right lid of reel, produce frictional resistance, this frictional resistance stops reel to change faster and faster, make the decline personnel remain on a stable speed and descend, thereby arrive safe and sound ground.During off working state, under the acting in conjunction of

spring

21 and 22, maintain certain clearance between the left side of the right lid 12 of the right side of frictional disk 11 and reel.Axle 15 right-hand members have square toes, can be by handle with steel wire rope again around to reel.

Because the damping mechanism of this device is placed on reel inside, so save space, less, the compact conformation of size.Itself need not hand control, just can keep decrease speed stable, convenient and practical, safe and reliable.

Claims

1, a kind of roll type descending lifeline mainly is made up of suspension ring 3, housing 1, reel 4, steel wire rope 5, travelling gear and damping mechanism etc., it is characterized in that damping mechanism is positioned at reel inside.

2, roll type descending lifeline according to claim 1, it is characterized in that, the right-hand member of the right lid 12 of reel is made the form of internal gear, by transition gear 14 and central gear 17 axle 15 is passed in rotation, thereby the rotation direction that makes the rotation direction of axle 15 and reel is to instead, and frictional disk 11 is installed on the axle 15.

3, roll type descending lifeline according to claim 1 is characterized in that, damping unit is made up of hand hammer 6, fork 7, connecting rod 9, fixed cover 19, regulating block 10 and frictional disk 11 etc.Hand hammer 6 has three or four, is uniformly distributed along the circumference.Hand hammer 6 rotates the centrifugal force that produces with axle, by fork 7, connecting rod 9, regulating block 10 frictional disk 11 is moved axially to the right, produces damping action by the friction between the left side of frictional disk 11 and the right lid 12 of reel, makes the rotating speed of reel keep stable.

4, roll type descending lifeline according to claim 1 is characterized in that, axle 15 right-hand members have square toes, is used for by handle steel wire rope again around to reel.