Automatic blocked lifting appliance

Abstract

The invention discloses an automatic blocked lifting appliance, which comprises a sling (1), an internal hollow connecting part (2) hung on the sling (1), and a hook (3) fixedly connected with the connecting part (2). A tongue piece (4) is fixedly hinged to an opening of the hook (3); an inner sleeve and a pull rod (5) made of magnetic materials in the connecting part (2) are fixedly connected to the rear end of the tongue piece (4); an inner side wall of the connecting part (2) is provided with an electromagnet (7) and a through hole (10); a power supply (6) electrically connected with the electromagnet (7) and a switch (9) are arranged in the through hole (10); a button part of the switch (9) stretches out of the connecting part (2), so that a user can conveniently control the electromagnet (7) to power on or off. With the structure, the user only needs to press the button, so that the tongue piece (4) can be opened and closed conveniently, and the automatic blocked lifting appliance is convenient, practical and high in flexibility.

Description

Technical field [0001] The invention relates to the field of hardware slings, in particular to a sling that is automatically blocked. Background technique [0002] The spreader is an indispensable tool in daily life, especially in the hoisting process. The spreader in the prior art, such as a spreader disclosed in the patent application number 201320422379.6, is equipped with a pull rod at the rear end of the tongue of a traditional hook. Using the principle of leverage, the pull rod whose length and weight are both larger than the tongue can hold The tongue is effectively pressed into the hook to ensure the limit, and even after the tongue is deformed, the tongue can be effectively attached to the hook due to the downward pressure of the pull rod to prevent the limit function from being weakened due to the deformation of the end of the tongue , At the same time, the use of elastic components such as springs is eliminated. When the rope in the hook is unloaded, only the pull rod...

AI Technical Summary

Problems solved by technology

However, there are the following disadvantages. The tongue needs to be pulled to open the angle. When there is debris at the joint between the tongue and the hook, the tongue may be stuck. At this time, it will be very laborious to pull the lever.

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