CN213356683U

CN213356683U - Safety buckle of lifting hook

Info

Publication number: CN213356683U
Application number: CN202021896637.0U
Authority: CN
Inventors: 刘永飞
Original assignee: Worldhoists Tianjin Co ltd
Current assignee: Worldhoists Tianjin Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-06-04
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a lifting hook safety is detained, include: the safety buckle comprises a torsion spring, a safety buckle body, a permanent magnet, a trigger plate and a trigger rod, wherein the upper end of the safety buckle body is connected with a lifting hook through a screw, the torsion spring is fixedly arranged between the screw and the safety buckle body, one end of the torsion spring is in contact with the lifting hook, and the other end of the torsion spring is in contact with the safety buckle body; the permanent magnet is fixedly connected with the safety buckle body; the trigger plates are L-shaped bent plates, the number of the trigger plates is 2, and one panel of each trigger plate is provided with a threaded hole; the two ends of the trigger rod respectively penetrate through the through hole on one side edge of the lower end of the safety buckle body and then are fixedly connected with the trigger plate through screws. The utility model has the advantages as follows: through the cooperation of torsional spring, permanent magnet, trigger bar and trigger plate for no longer need overcome spring resistance when placing the hoist in to the lifting hook, easy and simple to handle, the security is high, and can place the automatic lifting hook opening that seals after finishing at the hoist, guarantees the security.

Description

Safety buckle of lifting hook

Technical Field

The utility model relates to a spare part technical field for the hoist especially indicates a lifting hook safety is detained.

Background

The safety buckle of the lifting hook is a safety device which can prevent the lifting weight on the lifting hook from automatically falling off. At present, the traditional safety buckle of the lifting hook compresses a safety buckle body through a torsion spring, and the opening of the lifting hook is closed, so that the lifting weight is prevented from automatically falling off.

In the specific operation and use process, when a lifting appliance such as a lifting ring, a rope and the like penetrates into the lifting hook, the pressing force of the torsion spring acting on the safety buckle needs to be overcome, and the operation can be completed by two persons at the same time, so that the production efficiency is greatly reduced; in addition, often can lead to improper operation, cause the staff to be injured because of the torsional spring elasticity is too big in the operation process.

Therefore, a hook safety buckle which is convenient and safe to operate is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lifting hook safety is detained has solved among the prior art and has operated difficulty, the big problem of resistance when placing the hoist in the lifting hook.

The technical scheme of the utility model is realized like this:

a hook safety buckle comprising: the safety buckle comprises a torsion spring, a safety buckle body, a permanent magnet, a trigger plate and a trigger rod, wherein the upper end of the safety buckle body is connected with a lifting hook through a screw, the torsion spring is fixedly arranged between the screw and the safety buckle body, one end of the torsion spring is in contact with the lifting hook, and the other end of the torsion spring is in contact with the safety buckle body; the permanent magnet is fixedly connected with the safety buckle body; the trigger plates are L-shaped bent plates, the number of the trigger plates is 2, and one panel of each trigger plate is provided with a threaded hole; and two ends of the trigger rod respectively penetrate through the through hole on one side edge of the lower end of the safety buckle body and then are fixedly connected with the trigger plate through screws.

Preferably, the permanent magnet is connected with the safety buckle body through a bolt.

The working principle of the utility model is as follows:

when the safety buckle is used, the safety buckle body is manually pressed, the permanent magnet is adsorbed on the lifting hook, an included angle between the trigger rod and the safety buckle body is adjusted, so that one surface of the trigger plate is tightly attached to the lifting hook, and the trigger rod is transversely blocked at the opening of the lifting hook; then operating personnel places slings such as rings, the suspender on the lifting hook, the hoist can contact the trigger bar when placing to the lifting hook is interior, the free end of trigger bar can rotate downwards, drive simultaneously that one side that triggers board and lifting hook contact rotates, under the apical force effect that the rotatory brought of trigger board, the body can produce one and keep away from the power of lifting hook to detain safely, the body is detained safely and is keeping away from the removal in-process of lifting hook, the permanent magnet reduces gradually to the suction of lifting hook, after the elasticity of torsional spring is greater than the suction of permanent magnet, it can seal the opening of lifting hook under the effect of torsional spring to detain safely.

The utility model has the advantages that:

through the cooperation of torsional spring, permanent magnet, trigger bar and trigger plate for no longer need overcome spring resistance when placing the hoist in to the lifting hook, easy and simple to handle, the security is high, and can place the automatic lifting hook opening that seals after finishing at the hoist, guarantees the security.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the hook safety buckle of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a schematic diagram of the disassembled structure of fig. 2.

In the figure:

1. the safety buckle comprises a torsion spring, 2, a screw, 3, a safety buckle body, 4, a permanent magnet, 5, a trigger plate, 6, a trigger rod, 7 and a lifting hook.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As can be seen from the embodiments shown in fig. 1 to 3, the present invention provides a hook safety buckle, which comprises: the safety buckle comprises a torsion spring 1, a safety buckle body 3, a permanent magnet 4, a trigger plate 5 and a trigger rod 6, wherein the upper end of the safety buckle body 3 is connected with a lifting hook 7 through a screw 2, the torsion spring 1 is fixedly arranged between the screw 2 and the safety buckle body 3, one end of the torsion spring 1 is in contact with the lifting hook 7, and the other end of the torsion spring 1 is in contact with the safety buckle body 3; the permanent magnet 4 is fixedly connected with the safety buckle body 3; the trigger plates 5 are L-shaped bent plates, the number of the trigger plates is 2, and one panel of each trigger plate 5 is provided with a threaded hole; the two ends of the trigger rod 6 are respectively fixedly connected with the trigger plate 5 through screws after passing through a through hole on one side edge of the lower end of the safety buckle body 3.

The permanent magnet 4 is connected with the safety buckle body 3 through a bolt.

The working principle of the lifting hook safety buckle is as follows:

when the safety buckle is used, the safety buckle body 3 is manually pressed, the permanent magnet 4 is adsorbed on the lifting hook 7, an included angle between the trigger rod 6 and the safety buckle body 3 is adjusted, so that one surface of the trigger plate 5 is tightly attached to the lifting hook 7, and the trigger rod 6 is transversely blocked at an opening of the lifting hook 7; then operating personnel will rings, the hoist such as suspender is placed on lifting hook 7, the hoist can contact trigger bar 6 when placing in to lifting hook 7, the free end of trigger bar 6 can rotate downwards, drive simultaneously that one side that triggers board 5 and lifting hook 7 contact rotates, under the apical force effect that triggers 5 rotatory brings of board, safe body 3 of detaining can produce one and keep away from lifting hook 7's power, safe body 3 of detaining is keeping away from lifting hook 7's removal in-process, permanent magnet 4 reduces to lifting hook 7's suction gradually, after torsion spring 1's elasticity is greater than permanent magnet 4's suction, safe body 3 of detaining can seal lifting hook 7's opening under torsion spring 1's effect.

To sum up, the utility model discloses a torsional spring, permanent magnet, trigger bar and the mating reaction that triggers the board for no longer need overcome spring resistance when placing the hoist in to the lifting hook, easy and simple to handle, the security is high, and can place the back that finishes at the hoist and seal the lifting hook opening automatically, guarantees the security.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety hook buckle, comprising: the safety buckle comprises a torsion spring (1), a safety buckle body (3), a permanent magnet (4), a trigger plate (5) and a trigger rod (6), wherein the upper end of the safety buckle body (3) is connected with a lifting hook (7) through a screw (2), the torsion spring (1) is fixedly arranged between the screw (2) and the safety buckle body (3), one end of the torsion spring (1) is in contact with the lifting hook (7), and the other end of the torsion spring (1) is in contact with the safety buckle body (3); the permanent magnet (4) is fixedly connected with the safety buckle body (3); the trigger plates (5) are L-shaped bent plates, the number of the trigger plates is 2, and one panel of each trigger plate (5) is provided with a threaded hole; two ends of the trigger rod (6) penetrate through the through holes in one side edge of the lower end of the safety buckle body (3) respectively and then are fixedly connected with the trigger plate (5) through screws.

2. A lifting hook safety catch as claimed in claim 1, characterised in that the permanent magnet (4) is bolted to the safety catch body (3).