SU1079593A1 - Self-releasing hook - Google Patents

Abstract

SAMOOTTSEPLYAYUSCHIYSYA HOOK containing accommodated in the housing a spring-loaded shank abutment fixed to the shank, and mechanism for automatic ejection, slings, including a rotary resetting lever and stop lever mounted pivotably on the axis placed on the lateral wall of the housing in a plane perpendicular to the vertical axis the shank, characterized in that, in order to simplify the design and increase the convenience of operation, the drop lever is mounted on the axis of the stop lever and has a protrusion to limit rotating the thrust lever, and the housing is formed with a through slot in the side wall in which there is one thrust lever arm to cooperate with the focus of the shank. i (L o ate with Sla figure 1

Description

This invention relates to a lifting trance. tailor equipment, in particular for self-unhooking hooks, and can be used in any area of the national economy for loading and unloading. A self-disengaging hook comprising a spring-loaded shank accommodated in a housing, a stop fixed on the shank, and an automatic sling-dropping mechanism including a rotary dumping lever and an axial lever fixed pivotally on an axis located on the side wall of the housing in a plane perpendicular to the perpendicular is known. vertical axis of the shank 1.

However, such a hook is complicated in construction and not entirely convenient to use, since it is necessary to expend tremendous effort and additional time to move the lever arm to the side in order to allow the slings to visit the hook.

The purpose of the invention is to simplify the design and improve ease of use. This goal is achieved by the fact that in a self-disengaging hook comprising a spring-loaded shank accommodated in a housing, an abutment fixed on the shank and a mechanism for automatically releasing the slings including a swiveling drop lever and a thrust lever mounted swivel on an axis placed on the side wall of the hull in the plane perpendicular to the vertical axis of the shank, the dumping lever is mounted on the axis of the stop lever and has a protrusion for limiting the rotation of the stop lever, and the housing is made with a through in the side wall, in which one shoulder of the thrust lever is located with the possibility of interaction with the stop of the shank.

FIG. Figure 1 shows a self-disengaging hook, in the unloaded condition, side view; in fig. 2 - the same, in the loaded state (the dotted line shows the position of the hook at the moment of dropping the sling loop), side view; in fig. 3 is a view A of FIG. 2; in fig. 4 — stop lever, embodiment; in fig. 5 - ring ring with eye, option done: neither.

The self-locking hook contains a shank 1 housed in the body 2 and spring-loaded relative to the latter by means of a spring 3. On the shank 1 a stop 4 is fixed, which is, for example, a nut with an annular groove 5. The self-locking hook also contains a mechanism for automatically dropping the slings, including A rotary dumping lever 6 in the form of a fork, fixed pivotally on an axis 7 placed on the lengths 8 located on the side wall of the housing 2. On the axis 7 also a pivot stop lever 9 secured by a shoulder 10 is fixed th raspolozheno in the through slot 11 in the side wall of the housing 2, with

interaction with the stop 4 shank.

The resetting lever 6 has a protrusion 12 for restricting the rotation of the stop lever 9 and a groove 13 in which the stop lever 9 is placed, and the stop lever 9 can be

made with a counterweight 14 (Fig. 1) or spring-loaded (Fig. 4). A stop 4, for example, a figure nut with a circular recess 5, regulates the tension of the spring 3, and the shoulder 10 of the stop lever 9 is below the stop 4 when the hook is in the unloaded condition (Fig. 1), and in the annular groove 5 at the time when the hook is in the loaded state (Fig. 2).

Case 2 is made detachable, and the top

0, its part 15 has a shank 16 for connection with a lifting mechanism, and the nut 17 serves to lock the upper part 15 of the split housing 2 relative to its lower part. For dropping, for example, only one ends of the lines can

5, use a ring ring 18 having a hole 19, for which the second ends of the lines 20 are attached (the position of the ring ring is shown with the Schtrich line in FIG. 1).

The self-disengaging hook operates as follows.

The loops of the straps protruded under the load 20 are hung on the hook and the load is lifted. At the same time, the spring 3 is compressed and the shank together with the stop 4 is lowered relative to

2 bodies 2. The stop 4 presses the shoulder of the stop lever 9, which rotates on the axis 7, slips into the ring groove 5 and takes up its original position under the action of the counterweight 14 (Fig. 1) or spring (Fig. 4), while the stop 4 rests about case 2. When the load is put in place, the tension of the lines weakens, the spring 3 expands, the lower protrusion of the stop 4 touches the shoulder 10 of the stop lever 9 and turns upwards due to the movement of the stop 4

 resetting the lever 6 in a clockwise direction, while the resetting lever removes the loops of the slings 20 from the throat of the hook (Fig. 2). After the slings are dropped, the support 4, moving up, takes the initial position, and the stop lever 9 leaves the hook with it and takes, like the resetting lever 6, the initial position.

The self-disengaging hook is ready to lift the next load.

The proposed hook is simple in design and easy to use.

FIG. 2

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FIG.

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Claims (1)

SELF-LOCKING Κ.ΡΪΟΚ, comprising a spring-loaded shank located in the housing, an abutment mounted on the liner, and an automatic sling release mechanism including a rotatable reset arm, and a thrust arm mounted rotatably on an axis located on the side wall of the housing in a plane perpendicular to the vertical axis of the shank, characterized in that, in order to simplify the design and improve ease of use, the resetting lever is mounted on the axis of the stop lever and has a protrusion to limit the rotation of the stop lever and the housing is made with a through groove in the side wall, in which one shoulder of the thrust lever is located with the possibility of interaction with the stop of the shank. figure 1