CN204281057U - A kind of suspension hook - Google Patents

Abstract

A hook, which is provided with a hook body, a pulley assembly is arranged on the upper part of the hook body, an insurance card is arranged between the hook tip and the root of the hook body, and two transmission joints are arranged on both sides of the root of the hook body. The two transmission connecting plates are set opposite to each other. The upper edges of the two transmission connecting plates are set in a downwardly concave arc corresponding to the pulley assembly. A drive safety card is provided between the outer ends of the two transmission connecting plates The counterweight mechanism of the hook body, the inner ends of the two transmission connecting plates are hinged with the root of the hook body, the upper end of the insurance card is fixedly connected with the inner end of the transmission connecting plate, and the lower end of the insurance card is set at the hook tip of the hook body inside of the Ministry. The utility model plays a transmission role by setting a transmission connecting plate; setting a counterweight bar to realize the automatic reset of the insurance card, and can also form a self-lock on the hook body through position limiting to improve the safety of the hook.

Description

a hook

technical field

The utility model relates to a lifting device, in particular to a hook.

Background technique

As one of the key components in lifting equipment, the hook has been widely used in various loading, unloading and handling tasks. Due to the limited service life of the torsion spring in the structure of the ordinary hook itself, the torsion spring is easily damaged and is easily affected by the environment, so that the insurance card cannot seal the hook well. At the same time, the hook itself has no anti-decoupling design, which is easy Cause the sling to fall off from the hook during lifting.

Contents of the invention

The technical problem to be solved by the utility model is to provide a hook with reasonable design and good sealing effect in view of the deficiencies of the prior art.

The technical problem to be solved by the utility model is achieved through the following technical solutions. The utility model is a hook, which is provided with a hook body, a pulley assembly is arranged on the upper part of the hook body, and the hook tip of the hook body is There is an insurance card that seals the hook body between the hook body and the root, and its feature is that two transmission connecting plates extending toward the rear and lower side of the hook body are provided on both sides of the root of the hook body, and the two transmission connecting plates Relatively arranged, the upper edges of the two transmission connecting plates are set in a downwardly concave arc corresponding to the pulley assembly, and a counterweight mechanism for driving the insurance card to close the hook body is provided between the outer ends of the two transmission connecting plates. The inner ends of the two transmission connecting plates are hinged with the root of the hook body, the upper end of the insurance card is fixedly connected with the inner end of the transmission connecting plate, and the lower end of the insurance card is arranged inside the hook tip of the suspension hook body.

The technical problem to be solved by the utility model can be further realized through the following technical solutions. The insurance card is plate-shaped, and the bottom of the plate-shaped insurance card is provided with an inner arc notch matched with the hook tip of the hook body.

The technical problem to be solved by the utility model can be further realized through the following technical solutions. The transmission connection plate is rod-shaped, and the rod-shaped transmission connection plate is in a downwardly concave arc shape as a whole.

The technical problem to be solved by the utility model can be further realized through the following technical solutions, the transmission connecting plate and the insurance card are arranged in an L shape.

The technical problem to be solved by the utility model can be further realized through the following technical solutions. The counterweight mechanism is provided with a counterweight bar, and the two ends of the counterweight bar are connected with the transmission connecting plate through bolts.

The utility model transmits the power of the counterweight mechanism to the insurance card by setting the transmission connecting plate, realizes the sealing and opening of the hook body, and can also maximize the use of the capacity of the hook to improve the service life. The gravity of the rod and the transmission connecting plate is far less than the torsion of the spring, which can greatly reduce the labor intensity; the counterweight rod is set, and the counterweight rod falls under the action of its own gravity, and the safety card resets to seal the hook body, preventing the sling from falling off, and the transmission connection The plate and the counterweight bar are a closed frame structure, which can form a self-locking hook body through the position limit of the hook body, which greatly improves the safety performance of the hook; the whole device uses its own gravity to make the hook body The insurance card is always attached to the hook tip of the hook body during work to ensure that the sling will not fall out of the hook. Compared with the prior art, the utility model has reasonable design, simple structure, convenient use and high safety.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic structural diagram of an insurance card.

Detailed ways

The specific technical solutions of the present utility model are further described below with reference to the accompanying drawings, so that those skilled in the art can further understand the present invention without constituting a limitation on their rights.

1 and 2, a hook is provided with a hook body 1, a pulley assembly 5 is arranged on the upper part of the hook body 1, and a sealing suspension is provided between the hook tip 2 and the root 4 of the hook body 1. The insurance card 3 of the hook body 1, the root 4 of the hook body 1 is provided with two transmission connecting plates 7 extending toward the rear side of the hook body 1, and the two transmission connecting plates 7 are oppositely arranged. The upper edge of the connecting plate 7 is set as a downward concave arc corresponding to the pulley assembly 5, and a counterweight mechanism 6 for driving the insurance card 3 to close the hook body 1 is provided between the outer ends of the two transmission connecting plates 7, The inner ends of the two transmission connecting plates 7 are hinged with the root 4 of the hook body 1, the upper end of the insurance card 3 is fixedly connected with the inner end of the transmission connecting plate 7, and the lower end of the insurance card 3 is located at the bottom of the hook body 1. Hook point 2 inside.

The insurance card 3 is plate-shaped, and the bottom of the plate-shaped insurance card 3 is provided with an inner arc notch 8 that cooperates with the hook tip 2 of the hook body 1. The arc design can avoid scratching with the sling during operation and improve work efficiency , the inner arc notch can better contact with the hook and improve the safety of the hook.

The transmission connecting plate 7 is rod-shaped, and the rod-shaped transmission connecting plate 7 is in a downwardly concave arc shape as a whole, which is beneficial to avoid the pulley assembly above the hook body.

The counterweight mechanism 6 is provided with a counterweight bar, and the two ends of the counterweight bar are connected with the transmission connecting plate 7 by bolts, and the counterweight bar and the transmission link plate 7 form a closed space, and the hook body 1 is provided with In the closed space, self-locking can be formed through the limit function of the hook body on the counterweight rod, which greatly improves the safety performance of the hook.

The transmission connecting plate 7 and the insurance card 3 are arranged in an L shape to expand the movable space of the transmission connecting plate, so that the insurance card can fully contact the inner wall of the hook body, and the hook capacity can be utilized to the maximum.

When loading the sling, the insurance card 3 rotates until it is in full contact with the inner wall of the hook body 1, and the transmission connecting plate 7 is consistent with the arc of the pulley assembly above the hook body 1. In order to maximize the use of the hook capacity, at this time, it is necessary to overcome The gravity of the counterweight bar and the transmission connecting plate 7 is much smaller than the spring torsion in the original design, which can greatly reduce the labor intensity of workers. piece 5.

After the loading is completed, the counterweight bar is released, and the counterweight bar automatically descends under the action of gravity, and the insurance card 3 resets to seal the hook body 1 to prevent the sling from falling off.

During work, the device utilizes its own gravity to make the insurance card 3 on the hook body 1 always stick to the hook tip 2 of the hook body 1 during the working process, so as to ensure that the sling will not come out of the hook. Simultaneously, the transmission connecting plate 7 and the counterweight bar are a closed structure, which can form self-locking for the suspension hook through position limitation, which greatly improves the safety performance of the suspension hook.

Claims (5)

1. A suspension hook is provided with a suspension hook body, the top of the suspension hook body is provided with a pulley assembly, and an insurance card for sealing the suspension hook body is provided between the hook tip and the root of the suspension hook body, and it is characterized in that: The two sides of the root of the hook body are provided with two transmission connecting plates extending toward the rear side of the hook body. The two transmission connection plates are arranged opposite to each other. Concave arc shape, a counterweight mechanism that drives the insurance card to close the hook body is provided between the outer ends of the two transmission connecting plates, the inner ends of the two transmission connecting plates are hinged to the root of the hook body, and the insurance card The upper end of the safety card is fixedly connected with the inner end of the transmission connecting plate, and the lower end of the insurance card is arranged on the inner side of the hook tip of the hook body. 2. The hook according to claim 1, wherein the insurance card is plate-shaped, and the bottom of the plate-shaped insurance card is provided with an inner arc notch matching with the hook tip of the hook body. 3 . The hook according to claim 1 , wherein the transmission connecting plate is rod-shaped, and the rod-shaped transmission connecting plate is in a downwardly concave arc shape as a whole. 4 . 4. The hook according to claim 1, characterized in that: the transmission connecting plate and the insurance card are arranged in an L shape. 5. The hook according to claim 1, characterized in that: the counterweight mechanism is provided with a counterweight bar, and the two ends of the counterweight bar are connected to the transmission connecting plate through bolts.