HU192303B - Device for releasing the lock of lifting gears - Google Patents

Abstract

The invention relates to a load gripping and carrying device with automatic unlocking of Sicherungshuelsen in conjunction with lifting devices. It finds application in the field of construction when attaching loads with two Tragoesen. The invention has the object by a mechanism to unlock the Sicherungshuelsen automatically at load handling means and load-dependent. This is achieved in that between a bearing block an eccentric is mounted, which operates in addition to the Lastuebertragung a toggle lever, the lower end of the lever performs a vertically movable pawl. When lifting a tension spring tensioned and at the same time the Mitnehmermaul the pawl pressed into the web of Sicherungshuelse. If the device relieved, is pulled through the Mitnehmermaul the vertically movable latch, the Sicherungshuelse over the prestressed tension spring and toggle lever up and the mechanism unlocked.

Description

BACKGROUND OF THE INVENTION The present invention relates to a device for automatically releasing a securing member of a lifting device, particularly when lifting loads with a lifting hook.

Known lifting devices are devices for lifting loads with lifting hooks in a structural and reliable manner. The lifting device consists essentially of rope clamps ₍ traverses and two wire ropes with clamps or hooks), where the secured clamps or hooks are hooked to the lifting hooks of the load. To secure the load, a safety collar encircling the recording plate is pushed onto the profile disc from above, thereby securing the lifting hook.

Also known are lifting devices with grips and mounting brackets, which have the common feature that the load is held by the use of frictional forces. This requires tension or clamping forces that ensure that the load cannot slip out. These devices can therefore only be used for limited purposes under certain circumstances.

Direct lifting devices are used mainly in the construction industry. Their disadvantage is that the concrete slabs and the lifting device are connected and separated by hand. These operations are time consuming and especially dangerous when lifting the lifting gear.

It is an object of the present invention to overcome the above deficiencies and to automatically and reliably release the safety element after the load has been lowered.

Thus, the problem to be solved is to provide a relatively simple structure, by means of which the fuse element can be automatically released in a load-dependent manner and does not require additional auxiliary energy.

SUMMARY OF THE INVENTION The object is solved by providing a structure in which an eccentric pivot is connected between the jaws of a bearing bracket rigidly connected to a support bracket rigidly connected to a support member according to the invention, and its lower lever is connected by a vertically movable handle. The upper lifting end embedded in the elbow eccentric l · eccentric, the vertically movable pliers formed as a lower lifting device embedded in the gripper have a holding groove formed in the lower lifting arm. The upper lever is connected to the bearing bracket via retracting springs. It is provided with a bar inclined with respect to the direction of movement of the vertically movable safety element, which can be inserted into the holding groove.

The invention will be described in more detail with reference to the drawing. In the drawing:

Figure 1 is a front view of an exemplary embodiment of the structure of the invention;

Figure 2 is a side view of the structure of Figure 1;

Figure 3 is a schematic diagram of the structure of the invention in the loaded condition;

Figure 4 is a schematic diagram of the structure of the present invention when unloaded.

As shown in Figures 1 and 2, the support element 1 of the device according to the invention, the profile disc 2 connected to the support element 1, the retaining means 16 movably arranged vertically above the profile disc 2, the eccentric 5 and the eccentric 5 he has an elbow.

The eccentric 5 is in the unloaded position as shown in Figure 4. Above the elbow lever 6, the vertically movable handle 9 takes up the open position E. The rod 9 of the gripper 9, not shown in Figure 4, is located in a retaining groove 14 formed by the lower lever 13 of the gripper 9. Located in the upper end position of the locking element 16, the profile discs 2 are then free to take up the lifting hooks 3 of the concrete element.

In the loaded state of Fig. 3, the eccentric load force 5 is rotated in the direction of the operating axis, so that the lower lifting end 8 of the elbow lever 6 moves the grip 9 downward until the gripping groove 14 of the grip 9 grips the rod 15. The locking element 16 is thus closed in a load-dependent manner.

After the profile disc 2 is hooked to the load lifting hook 3 in the position of the device as shown in Fig. 4, the driving jaw 14 of the gripper 9 is removed from the rod 15 by means of a handle 19 connected to the lower lever 13 and then manually secured to the profile disc 2. This secured the load to be removed.

In the case where, after being hooked into the hoisting hook 3, the securing member 16 does not move up to the securing pins 17, when lifting the load, the tongue 9 presses the securing member to the securing peg 17 as shown in FIG. and retracting springs 11 are connected to the lower lifting end.

In the position shown in Fig. 3, the tension spring 10 is tensioned, and the retraction springs 11 acting on the upper lever arm 12 of the gripper 9 pull the driving jaw 14 against the rod 15. After releasing the load, the structure will be unloaded! the eccentric 5 moves from the axis of the load supported by the tension spring 10 to the position shown in Fig. 4.

Through the lower lifting end 8 of the elbow lever 6 operating under the bite of the eccentric 5, the vertically movable gripper 9 moves upwardly while the jaw 14 pulls the safety element 16 through the rod 15 so that the profile disc 2 and the lifting hook 3 are released. Then, by tilting the unloaded structure, the lifting hook 3 slides off the profile disc 2 by itself.

With the help of a traverse, the structure can be lifted and replaced with the next work step.

Claims (1)

Arrangement for releasing lifting means for lifting means, in particular for lifting loads with two lifting hooks, having a load-bearing unit 6, which is movably mounted on a bearing unit 6 mounted over a bearing element (4) rigidly connected to a support (16) (4) and connected via a lower lever (9) vertically movable through the lower lever end (8) of the elbow lifter (6), characterized in that the lifting end assembly is formed as an eccentric (5) in which the upper lever end of the elbow lever (6) Is mounted (7) which engages with a lower lifting end (8) embedded in the grip (9) by a tension spring (10) 192,303, furthermore, in the lower lever (13) of the forceps (9), a jaw (14) is provided, and the upper lever (12) is connected via a retractor (1) to the bearing bracket (4); the locking element (16) is connected to the rod (15) for catching the jaw (14), which is arranged perpendicular to the free movement direction of the locking element (16). 4 pieces of figure