RU161938U1 - LINE TRANSPORT FOR PACKAGED CARGO - Google Patents

Abstract

1. Transport sling for packaged cargo, which is a closed string, forming one loop of tightening the cargo package, lasting one lifting loop, a larger tightening loop superimposed on the tightening loop and connected with it by sliding sleeves in their adjacent sections adjacent to the cargo package, characterized in that the slide bushings are provided with clamps with adjustable compression force to prevent mutual movement of the tightening loop and the lifting loop. 2. A sling according to claim 1, characterized in that screw clamps are used as clamps. 3. A sling according to claim 1 or 2, characterized in that the string is made of steel wire, from a steel round-strand or flat rope, from a hemp or synthetic rope of round or flat shape.

Description

The utility model relates to hoisting-and-transport equipment, in particular to closed slings with a self-tightening loop.

Several similar constructions of a sling with a self-tightening loop are known, which are a closed string (cable, metal, synthetic rope, etc.), forming at least one loop for tightening the load package, and at least one lifting loop, large the tightening loop superimposed on the tightening loop, in which it is possible to prevent mutual movement of the tightening loop and the lifting loop is provided by wedge locks [RF Patents N 2061631 C1, 91710 U1]. A number of drawbacks are inherent in wedge locks, in particular: the compression force during jamming, which is carried out either by shock or by means of elementary compression devices, cannot be precisely controlled, unpredictable falling of the wedge from the sleeve is also possible (RF patent N 2061631 C1) or spontaneous jamming of the bushings instead of the necessary sliding . In addition, the different purpose of the known slings (in which the packaging function is in the first place) allows us to talk about another drawback of wedge locks, namely, during transportation, the fastening may loosen and the package of cargo may lose shape, which requires additional control and additional steps to adjust the packaging ( see, for example, RF patent N 2061631 C1).

There is a known solution to a stacking sling [RF Patent No. 80445 U1], in which the retention from the reverse stroke of the strings is provided by a ball or roller, or a collet, or an eccentric, as well as additional protrusions. In addition to, again, another purpose, all of the above elements involve significant efforts when releasing the cargo in place until the destruction of the sling structure.

The same differences and disadvantages are inherent in the device of a stacking line with a self-tightening loop, in which the mutual movement of the tightening loop and the lifting loop is prevented by crimping the bushings, that is, the bushings undergo irreversible deformation [RF Patent No. 79174].

It should be noted that the vast majority of goods shipped and transported in packages (packs) go through the packaging step directly at the manufacturing enterprises, in particular, specialized equipment is used to assemble pipes into a pack at a pipe plant, in which a certain number of pipes are laid in a pack of a certain shape ( usually hexagon) and screed with metal stripes (quantity is determined by standards). After that, slings are put on the pack, tightened and the pack is sent to the warehouse or to the car for shipment. Thus, slings for loading / unloading packaged cargo that can be held on such cargo along the entire route of the cargo to its destination are in demand.

As a prototype, a technical solution of the same purpose was selected, in particular, a closed line with a self-tightening loop [RF Patent No. 2085469 C1], which is a metal string forming a load tightening loop, continuing a lifting loop, a larger tightening loop superimposed on the tightening loop and associated with her sliding sleeves in their neighboring sections adjacent to the load, while the metal string forms at least one more lifting loop superimposed on the tightening loop and the first lifting loop and associated with them covered sliding sleeves, while the ends of the metal string are interconnected by means of fastening, mainly brace. This solution is optimal for lifting and moving cargo, including packaged. Moreover, this technical solution is not intended to remain on the packaged cargo during transportation over long distances up to unloading at the destination, since when the hook of the lifting-transport mechanism is released, it is immediately weakened with the risk of further uncontrolled movement on the packaged cargo. Such a sling also cannot serve as additional insurance against the scattering of pre-packaged cargo in the event of damage to factory packaging.

The objective of the utility model was the creation of a sling that facilitates loading / unloading of packaged cargo (mainly pipes) at all stages of transportation, increasing the reliability of the sling, as well as additional protection against the scattering of cargo when the packaging elements break.

This problem is solved by a transport sling for a packaged cargo, which is a closed string that forms at least one loop of tightening the load package, lasting at least one lifting loop, a larger tightening loop superimposed on the tightening loop and sliding sleeves connected to it in their neighboring sections adjacent to the package of cargo, in which, according to the proposal, at least one sliding sleeve is provided with a clamp with adjustable compression force to prevent mutual movement of the loop tightening LCDs and lifting loops.

Hereinafter, a clamp with an adjustable compression force means any known mechanism that allows, with the help of external influences, to compress two sections of the string (tightening loop and lifting loop) to their complete mutual immobility (depending on a wide range of constant and variable loads), and quickly reverse the process, that is, the separation of the two sections of the string. A preferred embodiment of the clamp is a screw clamp, which also makes it easy to control the compression force, for example, by using a torque wrench. An indication of a screw clamp does not exclude the use of other types of clamps, for example a lever clamp.

The string refers to any known material for the manufacture of slings, in particular steel wire, steel round-strand or flat rope, ropes from plant materials (hemp) or synthetic ropes of round or flat (tape) shape.

The inventive utility model is illustrated by drawings.

In FIG. 1 shows a general view of a transport sling for a packaged cargo; in FIG. 2 shows a longitudinal section through a screw terminal.

A transport sling for a packaged cargo is a closed string (metal rope) forming at least one loop of tightening 1 of a package of cargo 2, lasting at least one lifting loop 3, Loops 1 and 3 are connected by sliding sleeves 4. The bushings are equipped with screw clamps, each of which consists of a nut 5 welded to the sleeve, a bolt (screw) 6 and a stopper 7 located in the sleeve 4 and made with the possibility of contact with sections 8 and 9 of the loops 1 and 3. The ends of the metal rope are clamped by the fixed bushings 10 .

Sling transport for packaged cargo is used as follows.

Slings are assembled in a ring directly at the manufacturer. In this case, the ends of the rope are already clamped by the fixed bushings 10, the bushings 4 connect the adjacent sections of the tightening loop 1 and the lifting loop 3, and the stopper 7 by means of a bolt (screw) 6 and nut 5 provides the estimated clamping force. The required number of assembled slings is started on the load package 2 and a lifting force is applied to the loop 3, while the loop 1 is tightened around the load package 2 (the calculated clamping force of the stopper 7 allows sections 8 and 9 to slip relative to each other). Accordingly, sleeves 4 connect adjacent sections 8 and 9 of the tightening loop 1 and the lifting loop 3 adjacent to the package of cargo 2 (Fig. 1). In this case, the estimated clamping force of the stopper 7 is sufficient to prevent the sling from loosening after disconnecting the lifting hook (in the absence of lifting force). After tightening the loop 1 completely, if necessary and with a safe possibility, the clamping force can be increased by turning the bolt (screw) 6. At the destination, the sling can easily be removed from the load package. It is enough to loosen the clamping force of the stopper 7.

In general, the claimed transport sling is characterized by high reliability and ease of use. A sling (slings) fixed at the beginning of transportation on a package of cargo allows you to carry out all logistic loading / unloading cycles all the way to the destination. When the packaging elements break, the sling will keep the package of cargo from spilling. It should also be noted that the use of clamps with adjustable compression force, in particular screw clamps, eliminates the complete damage to the surface of the packaged cargo.

Claims (3)

1. Transport sling for packaged cargo, which is a closed string, forming one loop of tightening the load package, lasting one lifting loop, a larger tightening loop superimposed on the tightening loop and connected with it by sliding sleeves in their adjacent sections adjacent to the load package, characterized in that the slide bushings are provided with clamps with adjustable compression force to prevent mutual movement of the tightening loop and the lifting loop. 2. A sling according to claim 1, characterized in that screw clamps are used as clamps. 3. A sling according to claim 1 or 2, characterized in that the string is made of steel wire, from a steel round-strand or flat rope, from a hemp or synthetic rope of round or flat shape.

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