RU2380307C1 - Device to carry high-weight cargoes in along stair flights - Google Patents

Abstract

FIELD: transport, lifting devices.

SUBSTANCE: invention relates to lifting equipment and can be used to lift and carry cargoes over stair flights in residential; and industrial buildings. Proposed device comprises two telescopic posts with support platforms. One of the posts (upper) accommodates a winch, its haulage member (rope) being fastened to the carriage. Device running beam consists of two parts screwed together in operating position. Device cargo carriage runs over running beam driven by aforesaid rope. Carriage is locked in extreme operating positions with the help of its retainers. Carriage housing has slots to receive T-like stops of crossarm, one of said stops being furnished with crossarm locking mechanism. Said crossarm has journals and is coupled with aforesaid platform by four chain links, each having its top end suspended onto journals and its lower end being fastened to the platform to allow link length variation.

EFFECT: ease of disassembly and installation on stair flights.

2 cl, 7 dwg

Description

The invention relates to lifting devices and can be used for lifting and moving goods along flights of stairs in residential and industrial buildings while restricting the use of other hoisting vehicles.

A device is known for moving goods along a supporting surface with periodic interruption of the chassis on the supporting surface on one side and providing free rotation of the chassis together with the cargo compartment under the action of their own weight around the point of hinging the chassis with the second support, which is in contact with the supporting surface (RU 2278053 C1, CL B62D 57/032, publ. 06/20/2006).

The disadvantages of this device are the inability to transport goods on inclined surfaces.

A device is known for moving goods along inclined surfaces, comprising an inclined platform and a horizontal path, with a freight trolley mounted on them and driven by two winches, one for moving the cargo trolley along an inclined platform and the second along a horizontal slide path using flexible traction bodies ( SU 1105452 A, class B66F 7/02, publ. 07/30/1984, prototype).

The disadvantages of this device are the inability to install it on flights of stairs, the use of two winches, the separation of operations when moving cargo along inclined and horizontal planes, low mobility.

Closest to the proposed technical solution is a device for moving goods on inclined surfaces, containing articulated rails, a moving trolley driven by a winch, by means of a flexible traction unit (US 3216369 A, publ. 09.11.1965, prototype).

The disadvantages of this device is that it requires the installation of the platform with the load manually and its preliminary fixation on the rails, which is quite difficult in the conditions of the landing with an entrance platform. In addition, the preliminary removal of the pushing frame 84 and its subsequent installation on the rails are necessary. This requires a large amount of auxiliary manual operations.

The objective is to increase the degree of mechanization of the transportation of heavy loads along the flights of stairs of buildings, regardless of their number of storeys, and the possibility of transportation without damaging the finish of stairwells and walls of buildings.

The technical result is achieved using a device for transporting heavy loads along flights of stairs, which contains a cargo platform having wheels on swivel joints, a driving beam with two guides, each of which consists of two articulated parts, and a winch with a flexible traction unit. The device additionally contains two telescopic racks with supporting platforms, a traverse with trunnions and stops, one of which is equipped with a traverse fixing mechanism, a load carriage and a load carriage locking mechanism, while the riding beam is connected to the racks, said winch is installed on one of the racks, parts of the rails the driving beams in the working position are connected by threaded ties, a flexible traction body with its free end mounted on the body of the cargo carriage and passes through the said blocks with the possibility of lifting atformy with cargo, the cargo carriage body has in its grooves entering crosshead stops, the traverse is connected with the platform four slings round link chain, which upper ends are hooked to said pins, and the lower end of each sling is secured to the platform by means of a locking device.

Device for transporting heavy loads along flights of stairs: Fig. 1 shows a general view (front view), Fig. 2 is a general view (top view), Fig. 3 shows a stocking diagram, for example, of a rope, and Fig. 4 - the locking mechanism of the traverse, in Fig.5 is a locking device, in Fig.6 is the locking mechanism of the carriage, and in Fig.7 is a swivel of the parts of the driving beam.

The device contains telescopic racks 1, 2, on one of which (on the top) is installed, for example, by means of a bolted connection, a hoisting and pulling winch 3, for example, with manual or electric drive, a riding beam 4 made of two parts 5, 6 , for example, a channel articulated by a hinge 7, in the working position connected by threaded ties 8, which is connected to the posts 1, 2, for example, by means of a bolt connection and on which the locking mechanisms 9 of the load carriage 10 are installed, comprising a pin 11, a spring 12 and RU control booth 13. The device also comprises a traverse 14 with T-shaped stops 15, one of which (upper) has a locking mechanism 16 of the traverse 14, which consists of a bracket 17 and a stop with a hook 18. The carriage 10 contains single-flange wheels 19 for moving along the driving the beam by means of a flexible traction body 20, for example, a rope passing through blocks 21, 22, 23, having grooves 24 for the entry of T-shaped stops 15. The beam 14, in turn, is connected to the platform 25 by four slings 26, for example, from round link chains each with an upper end n hangs on the trunnions 27 of the traverse 14, and the lower end (with the possibility of changing the length of the sling) is attached to the platform 25 using the locking device 28, consisting of a hook 29 and a handle 30. The platform 25 is equipped with four wheels 31 with the possibility of rotation, for example, on swivel joints .

A device for transporting heavy cargo on flights of stairs works as follows.

The load 32 is fixed by pressing between the traverse 14 and the platform 25 by means of slings 26, for example, from a round link chain using a locking device 28, in which the hook 29 is hooked onto a sling 26, for example, from a round link chain and is latched by turning the handle 30, ensuring load 32 is pressed Before lifting the platform 25 with the load 32 in the lowermost position, the load carriage 10 is fixed on the ride beam 4 by a locking mechanism 9 to prevent the movement of the load carriage 10. The load carriage 10 is secured by retraction finger 11 with the control handle 13 and compression of the spring 12. When the load carriage 10 is in the extreme positions, the control handle 13 is released, and the finger 11 under the action of the spring 12 enters the hole in the cargo carriage 10, fixing it. The locking mechanism 9 is unlocked in the reverse order. The lifting of the platform 25 with the load 32 is carried out by a winch 3, on which a flexible traction member 20 is wound, passing through the blocks 21, 22, 23 and fixed with its free end to the body of the load carriage 10. After the crosshead 14 enters its T-shaped stops 15 into the grooves 24, available in the carriage body 10, and one T-shaped stop 15 works to rotate the yoke 14 relative to the carriage 10, and a T-shaped stop with a hook 18 serves to fix the yoke 14 in an inclined position using the locking mechanism 16, consisting of a bracket 17 and an emphasis with a hook 18, T-shaped the stop with the hook 18 when entering the groove 24 is hooked to the bracket 17, ensuring the fixation of the traverse 14. The unlocking mechanism 16 of the traverse 14 is unlocked by turning the bracket 17 and the output of the T-shaped stop with the hook 18 and the T-groove 24. To move the carriage 10 the locking mechanism 9 is unlocked, and with a further rotation of the winch drum 3, the load carriage 10 with the load 32 moves along the driving beam 4 to another extreme position, reaching which is fixed by the stop mechanism 9 of the carriage 10. The lowering of the load 32 occurs when unlocking nnom 16 través locking mechanism 14 and the reverse rotation of the winch 3. If necessary further transport of cargo (next march ladder) the device partially disassembled, repositioned, and lifting the cycle starts anew. Further movement of the platform 25 with a load of 32 within the landing is carried out manually due to the wheels 31.

Transportation of cargo 32 down stairs is carried out in the reverse order.

Thus, the device for transporting heavy loads is an easily collapsible design, which allows for a short period of time to reinstall it on the next flight of stairs for subsequent transportation of cargo.

Claims (2)

1. A device for transporting heavy goods along inclined guides, comprising a cargo platform having wheels on swivel joints, a driving beam with two guides, each of which consists of two articulated parts, and a winch with a flexible traction unit, characterized in that the device additionally contains two telescopic racks with supporting platforms, a traverse with pins and stops, one of which is equipped with a traverse fixing mechanism, a cargo carriage and a locking mechanism of the cargo carriage, when ohm the drive beam is connected to the racks, the winch is installed on one of the racks, the parts of the guide rails in the working position are connected by threaded ties, the flexible traction body is fixed with the free end to the body of the cargo carriage and passes through the blocks with the possibility of lifting the platform with the load, the cargo carriage has in its case, the grooves for the entry of the supports of the traverse, the traverse is connected to the platform by four slings from the round link chain, which are hung at the upper ends on the mentioned trunnions, and the lower end azhdy sling attached to the platform by means of a locking device. 2. The device according to claim 1, characterized in that the stops are made T-shaped.

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