RU69049U1 - CRANE FOR LIFTING AND DELIVERY OF GOODS TO A WINDOW OPENING, ON LOGGIA AND BALCONIES OF CONSTRUCTING AND REPAIRED BUILDINGS - Google Patents

Abstract

The claimed crane for lifting and supplying goods to the window opening, on the loggias and balconies of buildings under construction and under repair can be used in these works instead of the tower crane after the main construction works have been completed, when the main lifting work has been completed and the maintenance of the tower crane becomes unprofitable. A crane for lifting and supplying goods containing a lifting device comprising a rack, boom, electric winch and a mechanism for turning the boom in a horizontal plane is characterized in that. that the crane lifting device is supplemented by a set of simple devices consisting of two clamps, a rod, a strut and a transition sleeve, the use of which allows the crane to be used to lift cargo not only in the window opening, but also on loggias, balconies and other protruding platforms of buildings under construction and under repair. It differs from the known analogues in the absence of needs for counterweights when working with a loggia or balconies, and when working from a window opening, the ability to install at the desired level along the height of the window opening.

Description

The utility model relates to the construction industry and can be used to create lightweight cranes for use in the construction and repair of buildings.

Known [1] is a crane for lifting and supplying goods to a window opening of a building, containing a telescopic stand, a bracket with vertical cheeks mounted on it in a horizontal plane, mounted on the cheeks with the possibility of turning an arrow in a vertical plane, a device for fixing the position of the latter, a load gripping device and a cable-block system with a drive for lifting loads, characterized in that, with the aim of automatically supplying goods to the window opening, it is equipped with end-mounted eccentrics rigidly fixed to the rack th cam with an inclined annular working surface, the swivel bracket is mounted to move along the strut and is made with a supporting element at the lower end interacting with the working surface of the cam, and the locking device is a two-arm lever mounted on the said cheeks with the possibility of one of his shoulder entering, spring-loaded towards the strut, into the groove of the cam and the interaction of the other shoulder in the upper position of the boom with a stop made on it.

A positive feature of the invention [1] is the ability to rotate the boom with the load into the window opening with lateral gravitational force from the weight of the load. This allows you to move the load through the window opening without applying the efforts of the worker.

The disadvantages of the technical solution according to the invention [1] are as follows:

- there is no way to adjust the location of the lifting device according to the height of the window opening, which may be necessary when servicing buildings with different window sizes;

- the rotation mechanism of the lifting device under the action of gravitational forces is quite complicated, which increases the cost of the product as a whole;

- the invention cannot be used to create a crane for working with loggias or balconies of buildings under construction and under repair.

Also known is a crane [2] for lifting cargo into a window opening of a building, equipped with mechanisms for turning the boom in a window opening, however, it cannot be used to lift cargo onto a loggia or balcony, which limits its scope.

In addition, this crane in the window opening is installed with its base on the window sill, while in the high window openings the upper

part of the aperture is not used, which limits the possibility of transferring significant cargo in height through such a window aperture into the room.

The purpose of the utility model is to expand the technological capabilities of the product without increasing the level of complexity.

This is achieved by the fact that in order to simplify the design and expand its functionality, the crane is made up of several simple units (devices), the combination of which in the right combinations will allow lifting work not only from the window opening, but also from loggias, balconies and other speakers building sites.

In figures 1, 2 and 3, the crane is shown fixed in a window opening (figure 1) mounted on the platform of the loggia or balcony (figure 2), on the railing of the loggia or balcony (figure 3).

The crane consists of a lifting device and devices that ensure its installation in the working position in the necessary places. The lifting device (Fig. 1) includes a rack 1, an arrow 2, a rotary mechanism 3. An electric winch 4, a cable block system 5 and a limit switch 6 are mounted on the arrow. The rack has a plumb line 7 for installing it at the required angle to the vertical.

At the upper end of the crane strut there is a rectangular protrusion 8 with a hole of predominantly rectangular shape and a clamp 10 for connection with a clamp 9 or a rod 19.

The boom is attached to the rack through a hinge with a pin 11 with the possibility of rotation in the horizontal plane by gravitational force or by the rotation mechanism 3, in the vertical plane, to use the boom with the required angle, talper 12 is used.

The rotation mechanism 3 (Fig. 1) contains a conical pair 13 with a reverse gear ratio (for example 2: 1) and a lever 14 with a latch 15 of the boom position in the horizontal plane. At the upper end of the vertical axis of the conical pair there is an eyelet 16 for mounting the boom.

The boom 2, with an electric winch 4 installed on it, is easily disconnected from the rack 1. The rack and arrow are equipped with handles 17 for carrying these nodes by workers.

The set of devices for installing the lifting device in the working position consists of two clamps 1, 2, 3 pos. 9, 18, rods (FIGS. 2, 3) and couplings 20, providing the connection of the lifting device with clamps and the rod in the necessary combinations. This kit also includes a strut 21 (figure 2, 3), necessary to install a lifting device for working with a loggia or balcony.

The clamps 9 and 18 have one fixed foot 22 and one movable removable foot 23 and 24. On the clamp 18, the movable foot 23 has a glass (box) 25 attached to it and a clamp 10, and the ears 26 are attached to the clamp 9, closer to the fixed foot. The movable legs on each clamp have stop screws 27. The rod 19 (figure 2, 3) is a segment of a square pipe, one end of which is made in the form of a clamp similar to the clamp 9.

The pins 11 for all connections have spring clips that prevent them from falling out of the connected parts. Such pin connections will provide installation and dismantling of the crane without the use of tools.

The coupling 20 is two pieces of square pipe, fastened to each other mutually perpendicularly, with one segment made in the form of a glass 25, and on the second segment with a through hole there is a clip 10.

The crane is used as follows.

1. When working from the window opening of figure 1

The lifting device is fixed at the desired height, on the wall of the window opening with the help of a clamp 9 and 18. For this, the removable paws (stops) 23 and 24 are removed from both clamps. The coupling 20 is put on the coupling 20. After pushing the removable paw onto the clamp and securing the coupling 20 on the clamp with a clamp 10, this clamp with the help of a stop screw 27 is mounted at the required height to the wall in the window opening. The lower end of the rack 1 of the lifting device is inserted into the cup 25 of the coupling 20, then a second clamp 9 is inserted into the protrusion 8 at the upper end of the rack 1, after which the removable paw 24 is fixed.

Rack 1 using a plumb line 7 is installed in a vertical position, then it is tilted to the side of the building, necessary to rotate the boom with the load through the window opening under the influence of gravitational forces. In this position, the rack is fixed with clamps and clamps 10 on the protrusion 8 and on the coupling 20. An arrow 2 with a load-lifting mechanism 4 is placed on the rack and secured with a pin 11. The arrow is used to tilt with the lanyard 12.

In this position, the crane is ready for operation.

By turning the lever 14, the operator sets the boom at right angles to the outer wall of the building.

In this position, the arrow is fixed by the latch 15 of the rotary device. The cargo hook of the boom 2 with a lifting mechanism lowers to the ground, here the cargo is attached to it (loaded). The load rises to the upper position, where limit switch 6 (limiter

lift) turns off the electric motor and turns on the brake device. The operator through the rod located on the handle of the lever 14 acts on the latch 15 of the boom, while the boom is released and under the action of the lateral component of gravitational forces or the efforts of the worker applied to the handle 14, is rotated through the window opening into the room. At the same time, acting on the lever handle 14 of the rotary mechanism 3, the operator adjusts the speed of rotation of the boom with the load and makes sure that the load does not touch the opposite wall of the window opening. In the position where the arrow in the horizontal plane becomes at right angles to the internal wall of the building, it is secured by the latch 15 of the rotary mechanism. In this position, the load drops to the floor. The process is then repeated. Dismantling the crane is carried out in the reverse order to the described installation.

2. When using a crane from the base (cantilever mounted reinforced concrete slab) of the loggia or balcony before installing railings or fencing on them, Fig.2.

A removable paw 23 with a glass 25 is put on the clamp 18. This clamp is mounted on the edge of the plate in a vertical position opposite the edge of the door or window opening overlooking the loggia (balcony). The rack 1 is inserted into the glass 25. The rod 19 is inserted at one end into the opening of the protrusion 8 at the upper end of the rack 1, and its second end, which serves as a clamp, is fixed to the wall of the door or window opening. Then, at a certain distance from the clamp 18, (Fig. 2 to the left), the clamp 9 is mounted vertically, with the movable paw 24 previously mounted on it, with the ears 28. The strut 21 is attached to the ears with the help of the pin 11. The other end is attached by a pin 11 to the ears 29 located on the upper end of the rack 1.

Using a plumb line 7, the rack 1 is installed with the desired slope towards the building and fixed with clamps 10.

The boom with the lifting device is mounted on the rack. Lifting the load and feeding it into place is the same as in the case of work from a window opening.

3. When using a crane from a loggia or balcony with a fence (railing). Figure 3

The coupling 20 is slid on the clamp 18, the clamp is horizontally mounted on the railing (fence) of the loggia or balcony and fixed with a screw 27. A stand 1 is inserted into the glass 25 of the coupling 20. The rod 19 is inserted at one end of the protrusion 8 on the upper

the end of the rack 1, and its second end, which serves as a clamp, is fixed to the wall of the door or window opening.

Then, at a certain distance from the clamp 18 (to the left of FIG. 3), the clamp 9 is horizontally mounted on the railing. A movable paw 24 is put on it. A strut 21 is attached to the ears 26 using the pin 11 with one end 21. The other end is attached with the pin 11 to the ears 29, located at the upper end of the rack 1. Further securing the lifting device at the desired angle of the rack 1 and the boom, and lifting the load is carried out as in previous cases.

The positive effect of using the utility model is achieved through the use of a screw clamp with a removable paw, a rod, a strut and a coupling with a socket (glass) for installing a crane in the window opening, on the loggia or balcony.

INFORMATION SOURCES

1. Patent 2048423 (Terminated according to data on September 19, 2005) A crane for lifting and supplying goods to the window opening of a building with a priority of 1991.0620.

Authors: Deulin I.Ya. and etc.

2. Patent No. 56365 for utility model with priority dated January 26, 2006. Crane for lifting and supplying goods to the window opening of the building. Authors: Reutov Yu.M., Idiatullina L.R., Kozlov A.V.

Claims (1)

A crane for lifting and delivering goods to a window opening, onto a loggia, balcony or open area of a building under construction or under repair, containing a stand, an arrow, an electric winch and a mechanism for turning the arrow in a horizontal plane, characterized in that two clamps and a rod made mainly of a square tube, one end of which is made in the form of a clamp; each clamp contains a fixed and removable paws, the latter in the working position on the clamp is fixed with a clamp; on the case of one of the clamps and on the corresponding removable paw there are eyes for attaching the strut, a coupling with a glass is put on the other clamp for installing the crane stand; at the upper end of the crane stand there is a protrusion with a hole of mainly rectangular shape and a clamp for connection with a clamp or a rod, and its lower end is inserted into the coupling sleeve, worn on a clamp or in a glass mounted on a removable foot of this clamp.