RU151908U1 - LIFTING AND LIFTING DEVICE - Google Patents

Abstract

A lifting and launching device, consisting of a telescopic tube, inside of which a cradle is located, the telescopic pipe being made of several elbows with the possibility of unfolding, while the upper and lower drums are installed on the lower and upper ends of the elbows of the telescopic pipe, in addition, the lower drum is equipped with a tension device providing preliminary tension of the flexible connection connecting the upper drum to the lower drum, while the cradle is made with the possibility of fastening to a flexible connection, as well as the cradle equipped with a thrust mechanism consisting of a bar, to which several levers with rollers, stops are pivotally attached, and return levers are attached to the levers, while the shortest lever with a roller is rigidly attached to the bar.

Description

The invention relates to lifting devices that are used in the construction of large-sized agricultural and other buildings and structures, installation and dismantling of structures, as well as restoration work at high altitude in hard-to-reach places and during maintenance and repair of structures, as well as in the delivery of goods to a given height, or descent of goods from the required height.

Known self-propelled lifting and launching device for conducting rescue operations on high-rise buildings and structures [RU 13757 U1, A62B 1/00, 02/03/2000], containing a telescopic boom with a support and fixing device on its upper knee, characterized in that the lifting -the launching device is equipped with a ground-based monitoring, control and monitoring system for the emergency and rescue situation, including monitoring tools, lighting devices and speakerphone mounted on the upper part of the boom and function uyuschie using teleradiopriemoperedayuschey equipment.

A device is known for mounting oversized structural elements, lifting loads and carrying out work in hard-to-reach places of high-rise structures [RU 2231602 C2, E04B 1/35, B66C 21/00, 06/14/2002], which relates to the field of construction of large-sized buildings and structures, installation and dismantling parts of these structures, as well as carrying out restoration work at high altitude in hard-to-reach places and maintenance work on the structures, and contains a support rope, a freight trolley, a traction rope, bypass blocks, a drive and fasteners i. In addition, the supporting rope is equipped with a tensioning device with the ability to control the tension of the rope and is tensioned with a natural sag, providing an allowable load on the fastening elements, the ends of the supporting rope are rigidly fixed in the fastening elements, while the upper end of the supporting rope is mounted on the protruding part of the structure above the place of installation or work, and the lower end of the carrier rope is fixed by means of a fastening element on a specially constructed cargo area Adke, fasteners are installed on the installation sites at a distance H, ensuring the passage of the traction rope without touching the protruding parts of the structure, taking into account the passage of cargo. The cargo trolley is mounted on a carrier rope with the possibility of movement along it, and the weight of the cargo trolley ensures its return to the lowest position and the tension of the traction rope attached to the cargo trolley.

Known cable skidder [RU 2009919 C1, B61B 7/00, 03/30/1994], containing supports, bearing, traction and return ropes associated with a winch for moving two skidding carriages, into the bypass blocks of which are assembled prefabricated ropes, the first of the carriages made with a coupling lock connecting the traction rope to one of the prefabricated ropes, characterized in that it is provided with an additional auxiliary coupling lock mounted on the second assembly rope mounted on the housing of the first skid carriage, while the latch is mounted on the second skid carriage. However, this invention does not solve the problem of lifting large elements to a great height.

A known method of mounting large-sized heavy elements of buildings and structures [RU 2118288 C1, B66C 23/00, 08/27/1998], including lifting the element with two cranes and installing the element at the installation site by moving the goods by turning the cranes and changing the departure points of the load on the crane. The method is expensive, requires highly skilled crane operators and, when implemented, there is a great risk of grazing parts of the building (structure).

The objective of the invention is to increase the efficiency and safety of lifting and launching operations, as well as the elimination of the negative impact of external factors on the raised and lowered loads and / or people.

For a more efficient and safe lifting and lowering of loads, a lifting and launching device is proposed, the main elements of which are a telescopic pipe with a movable cradle located in it.

When moving the cargo located in the cradle inside the telescopic pipe, it seems possible to prevent the harmful effects of the environment on the cargo. In addition, the proposed lifting and launching device mounted on a special machine is used when evacuating people (Fig. 1), for example, from a tall burning building.

Lifting and launching device consists of a telescopic pipe 1, inside of which is a cradle 2 (Fig.2, 3, 4, 5). The telescopic tube 1 is made of several bends with the possibility of folding, thereby providing the required lifting height of the cradle 2 inside the telescopic tube 1.

In addition, at the lower and upper ends of the elbows of the telescopic pipe 1, drums 3 and 4 are installed, while the drums 3 and 4 are configured to drive, for example, from electric motors. In addition, the lower drum 4 is equipped with a tensioner 5, providing pre-tensioning of a flexible connection 6 (for example, a chain, cable, etc.) connecting the upper drum 3 with the lower drum 4.

The cradle 2 is made with the possibility of fastening to a flexible connection 6. In addition, the cradle 2 is equipped with a thrust mechanism 7 (Fig. 5), which provides easy movement of the cradle 2 along the folding telescopic tube 1.

The stop mechanism 7 is rigidly attached to the cradle 2, for example with bolts, through the holes in the bar 8. Several arms 9 with rollers 10 and stops 11 are pivotally attached to the bracket 8, and return springs 12 are attached to the arms 9 (Fig. 5). An exception is the upper, shortest lever 9 with a roller 10, which is rigidly attached to the bar 8.

Lifting-trigger device operates as follows. Before use, the lifting and launching device is mounted on a machine similar to a crane or a rescue vehicle and connected to hydraulic, electrical and other energy supply systems.

Folding and unfolding the telescopic pipe is performed in any known manner.

The rise of the cradle to a given height is provided as follows. When unfolding a telescopic pipe, a flexible connection is wound from the drum 3, while pre-tensioning the flexible connection with a tensioning device 5 mounted on the drum 4. When the telescopic pipe is fully unfolded, several coils of flexible connection are provided on the drum 3.

To lift the cradle 2, rotate the drum 3 (for example, by an electric motor), while flexible connection 6 is wound on the drum 3. Windows are provided in the upper and lower bends of the telescopic tube 1 through which transported goods are loaded or unloaded.

When installing the telescopic pipe 1 at an angle, increased friction against the walls of the telescopic pipe is observed, and when the cradle 2 moves from one knee to another, jamming of the cradle 2 in the telescopic pipe 1 is possible (especially when the telescopic pipe 1 is installed at an angle).

Ensure the normal movement of the cradle 2 along the elbows of the telescopic pipe 1 by installing the thrust mechanism 7.

Moreover, in the lower position of the cradle 2, all the levers 9 are made in the open position, and the longest lever 9 with the roller 10 rolls along the knee surface, while the return spring 12 rests the lever 9 with the roller 10 at the stop 11. When lifting to the transition point of one knee they are folded into another lever 9, overcoming the force of the spring 12, and the second lever 9 with the roller 10 is included in the operation, and so on.

When folding the telescopic tube 1, the drum 3 is rotated, while the flexible connection 6 is tensioned by the tensioning device 5, and when the cradle 2 moves from the larger knee to the lower one, the lever 9 with the roller 10 is first opened by the action of the spring 12, and then this lever 9 is loaded with weight carrycots 2 with transported cargo and so on.

When the cradle 2 is lowered down, the transported load is taken from it.

The proposed lifting and launching device is capable of lifting the load to a predetermined height, as well as lowering the load inside the telescopic pipe. In addition, from the cradle 2 it is possible to perform various types of work at a given height.

The proposed lifting and launching device is effective in operation and protects the transported load from the harmful effects of the environment.

Information sources

1. RU 13757 U1, A62B 1/00, 02/03/2000.

2. RU 2231602 C2, E04B 1/35, B66C 21/00, 06/14/2002.

3. RU 2009919 C1, B61B 7/00, 03/30/1994.

4. RU 2118288 C1, B66C 23/00, 08.27.1998.

Claims (1)

A lifting and launching device, consisting of a telescopic tube, inside of which a cradle is located, the telescopic tube being made of several elbows with the possibility of unfolding, while the lower and upper ends of the elbows of the telescopic tube are equipped with upper and lower drums, in addition, the lower drum is equipped with a tension device providing a preliminary tension of the flexible connection connecting the upper drum to the lower drum, while the cradle is made with the possibility of fastening to a flexible connection, as well as the cradle equipped with a stop mechanism, consisting of a bar, to which several levers with rollers, stops are pivotally attached, and return levers are attached to the levers, while the shortest lever with a roller is rigidly attached to the bar.

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