CN203959660U - A kind of suspension hook with anti-drop device - Google Patents

Abstract

The utility model aims to provide a hook with an anti-falling device, which includes a hook body, a tongue, and a limit device. The tongue is movably hinged on the hook body, and the limit device includes a limit edge The rectangular frame structure, one end is fixed at the connection point on the tongue, forming a T-shaped structure with the tongue, and the other end passes through the hook body and connects with the limit side; the length of the limit device is slightly shorter than the connection point to the hook The longest distance outside the body. The utility model is simple to make, can be directly modified on the existing hook, has low cost, is convenient to use, and can greatly improve the safety of the factory reinforced crane.

Description

A hook with an anti-falling device

technical field

The utility model relates to a hook of lifting equipment, in particular to a hook with an anti-falling device.

Background technique

When the crane (driving car) in the stamping workshop hoistes the mold, in order to prevent the suspended mold from being disengaged from the hook, a tongue is usually added to the hook to limit the disengagement. However, in actual use, the tongue will move left and right and outward due to the loosening of the connecting device or the action of external force and inertia when it is lifted, resulting in the suspension hook being disengaged and the restriction function lost, which poses a great potential safety hazard.

Utility model content

The utility model aims to solve the safety problem of the above structure, and provides a hook with a tongue and a limiting device, the hook restricts the movement of the tongue through the limiting device, so that the tongue always keeps in contact with the hook , to prevent the sling from breaking away from the hook.

The technical solution adopted by the utility model to solve the technical problems is as follows: a hook with an anti-falling device, including a hook body, a tongue, and a limit device, the tongue is movably hinged on the hook body, and the limit The positioning device is a rectangular frame structure including a limiting edge, one end is fixed at the connection point on the tongue, forming a T-shaped structure with the tongue, and the other end passes through the hook body and is connected with the limiting edge; the length of the limiting device Slightly less than the longest distance from the connection point to the outside of the hook body.

The length of the limiting device is 4-15mm shorter than the longest distance from the connection point to the outside of the hook body.

The limiting device is fixed on the tongue by welding or bolts.

The end of the tongue is against the inner side of the hook tip of the hook body.

The position limiting device of the utility model can be made of low-carbon steel round steel with a smaller diameter, which is simple to make and low in cost.

The structure of the combination of the tongue and the limit device in the utility model avoids the situation that the tongue moves left and right or moves outward in actual use, causing the suspension rope to break away from the hook; the tongue is articulated on the hook body, The limit mechanism composed of the tongue and the limit device can rotate around the hinge. Since the length of the limit device is slightly shorter than the longest distance from the connection point to the outside of the hook body, in general, the limit device is under its own gravity. Down, the limit edge is in contact with the hook body at a position close to the bottom, and the tongue is against the inside of the hook tip of the hook body, restricted by the hook body, the limit device cannot continue to rotate downwards, and the limit device cannot continue to rotate downward. The tongue piece connected with the device as a whole is therefore restricted and cannot be separated from the hook body; when the goods need to be lifted, the upward rotation of the limit device and the downward movement of the tongue piece are not restricted, so as long as the rotation limit The limit mechanism composed of the device and the tongue can put the lanyard in the hook, and then release the hook, the limit device and the tongue are in the limit position of the hook body under the action of gravity, thus It is ensured that the sling for hanging heavy objects will not break away from the hook. Moreover, the setting of this limit position is also conducive to making the whole hook body in a vertical state when lifting heavy objects, so that the hook is not easy to tilt, and further reduces the risk of heavy objects being dragged out of the hook.

In summary, the hook provided by the utility model can effectively avoid the situation that the hook tongue is disengaged from the left and right and outward during the process of hoisting heavy objects, which will greatly improve the safety of the factory-strengthened crane. At the same time, the utility model is simple to manufacture, can be directly modified on the existing hook, has low cost, is easy to use, and has a good application prospect.

Description of drawings

Fig. 1 is the structural diagram of the suspension hook of the utility model with anti-falling device.

The serial numbers and names of each part in the figure are as follows:

1 is the hook body, 2 is a tongue, 3 is a limiting device, 4 is a limiting edge, and 5 is a connection point.

Detailed ways

Further illustrate the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, the hook with the anti-falling device includes a hook body 1, a tongue 2, and a limiting device 3; the tongue 2 is hinged on the hook body 1, and the limiting device 3 includes The rectangular frame structure of the limiting side 4, one end is fixed at the connection point 5 on the tongue 2, forms a T-shaped structure with the tongue 2, and the other end passes through the hook body 1 and is connected with the limiting side 4; The length of the limiting device 3 is 4-15mm shorter than the longest distance from the connection point 5 to the outside of the hook body 1;

The use process of the hook with the anti-falling device of the utility model is as follows: when a heavy object needs to be hooked, the limit device 3 or the tongue piece 2 is moved to make the tongue piece 2 rotate downwards, leave the hook tip, and hang the heavy object Put the hanging rope into the hook; loosen the hook, the limit device 3 or the tongue 2 will reset under the action of gravity, the limit edge 4 of the limit device 3 will contact with the outside of the hook body 1 near the bottom, and the tongue will The end of piece 2 is against the inner side of the hook point, and is limited by the hook body, the limit device cannot continue to rotate downward, and the tongue connected to the limit device is therefore restricted and cannot be separated from the hook body upward; When the transportation is completed and the sling needs to be removed, the stop device 3 or the tongue 2 is moved to make the tongue 2 leave the hook point, and the sling is taken out.

Claims (4)

1. A hook with an anti-falling device, including a hook body (1), a tongue (2), and a limit device (3), characterized in that the tongue (2) is articulated to the hook body ( 1), the limiting device (3) is a rectangular frame structure including a limiting edge (4), one end is fixed at the connection point (5) on the tongue (2), and forms a T-shaped structure, the other end passes through the hook body (1) and is connected with the limit side (4); the length of the limit device (3) is slightly shorter than the outermost point from the connection point (5) to the outside of the hook body (1) long distance. 2. The hook with an anti-falling device according to claim 1, characterized in that: the length of the limit device (3) is longer than the length from the connecting point (5) to the outside of the hook body (1) The distance is as small as 4-15mm. 3. The hook with a fall-off prevention device according to claim 1, characterized in that: the limiting device (3) is fixed on the tongue (2) by welding or bolts. 4. The hook with a fall-off prevention device according to claim 1, characterized in that: the end of the tongue (2) abuts against the inner side of the hook tip of the hook body (1).