CN105584933A

CN105584933A - Self-locking safe hook

Info

Publication number: CN105584933A
Application number: CN201410561136.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-10-21
Filing date: 2014-10-21
Publication date: 2016-05-18

Abstract

The invention relates to a self-locking safe hook, and especially relates to the hook with absolutely safe and firm connection between a rope and the hook, which belongs to the technical field of machine production. The hook comprises a hook body, a hook head, a closing handle, a locking handle, a closing handle spindle, a locking handle spindle, torsion springs and a stop pin, wherein the closing handle and the locking handle are respectively connected to the hook body by the closing handle spindle and the locking handle spindle to form the fixed hinge forms of two rotary pairs, and the two rotary pairs are respectively positioned in the middle parts of the closing handle and the locking handle; the torsion springs are respectively arranged on the closing handle spindle and the locking handle spindle; the outer side at the lower part of the closing handle can be tightly attached to the inner side of the hook head under the action of the torsion spring force; the stop pin is arranged at the upper part of the locking handle, the stop pin can be tightly attached to the outer side of the hook body under the action of the torsion spring force, and the stop pin is simultaneously arranged in such a position that the closing handle is limited and cannot rotate in the inverse direction of the torsion spring force; and the stop pin can release the closing handle after the locking handle rotates a certain angle in the inverse direction of the torsion spring force. The self-locking safe hook has the advantages of favorable self-locking performance, stable connection, high safety and reliability and the like, and is convenient and easy to manually control.

Description

Self-locking safety hook

Technical field

The present invention relates to a kind of self-locking safety hook, particularly a kind of requirement must have the hook that is perfectly safe and is firmly connected between tether and hook, belongs to machinery manufacturing technology field.

Background technology

Existing steel coupling hook also has the security closure that prevents slippage between attachment, in attachment is inserted in hook after, locking device enforcement remaining silent to hook sleeve porch. But the not self-locking of existing locking device, also may occur in the attachment slip phenomenon under complex environment, causes the accident. Therefore design and a kind ofly there is the coupling hook tool that entangles coefficient firm that is perfectly safe and be of great significance.

Summary of the invention

In order to realize, the hook own wt of lifting cargo is light, load is large, safety coefficient is high, and the present invention proposes a kind of self-locking safety hook.

Above-mentioned purpose realizes and implementing by the following technical programs; It is made up of coupler body, gib head, sealing handle, locking handle, the rotating shaft of sealing handle, the rotating shaft of locking handle, torsion spring, shotpin. Described sealing handle and locking handle are connected on coupler body by sealing handle rotating shaft and the rotating shaft of locking handle respectively, and form the fixed hinge form of two rotary pairs, and two rotary pairs lay respectively at the middle part of sealing handle and locking handle; In the rotating shaft of described sealing handle and the rotating shaft of locking handle, be equipped with torsion spring; The lower outside of described sealing handle is closely connected with the inner side of ditch head under the effect of torsion spring power; Described locking handle top is provided with shotpin, and shotpin is closely connected with the outside of ditch body under the effect of torsion spring power, and shotpin is arranged on restriction sealing handle simultaneously and can not does on the position of contrary spring force direction rotation; Described shotpin is done after contrary spring force direction rotates to an angle to throw off sealing handle at locking handle.

The present invention have self-locking property good, be connected firmly, safe and reliable, artificially manipulate the advantages such as convenient and simple.

Brief description of the drawings

Accompanying drawing 1 is the structural representation under the closed self-locking state of the present invention;

Accompanying drawing 2 is the structural representation under opening released state of the present invention.

In attached Fig. 1 and 2: 1 coupler body, 2 sealing handles, 3 torsion springs, 4 sealing handle rotating shafts, 5 shotpins, 6 locking handle rotating shafts, 7 locking handles, 8 gib heads.

Detailed description of the invention

As shown in Figure 1, coupler body 1 forms revolute with sealing handle 2 by sealing handle rotating shaft 4 and is fixed hinge forms of motion, and revolute is positioned at the middle part of sealing handle 2. Owing to being provided with one end of torsion spring 3 and torsion spring 3 and being resisted against inner underside, another end hook of sealing handle 2 in sealing handle rotating shaft 4 and lean against the inner side of coupler body 1 below the rotating shaft 4 of sealing handle, thereby the lower outside of sealing handle 2 be rotated counterclockwise under can torsion spring 3 twisting forces in sealing handle rotating shaft 4 and closely connected with the inner side of gib head 8, thereby make opening part between coupler body 1 and gib head 8 completely in full closeding state. In the left side of coupler body 1, coupler body 1 forms revolute with locking handle 7 by locking handle rotating shaft 6 and is fixed hinge forms of motion, and revolute is positioned at the middle part of locking handle 7. Owing to being provided with one end of torsion spring 3 and torsion spring 3 and being resisted against inner underside, another end hook of locking handle 7 in locking handle rotating shaft 6 and lean against the outside of coupler body 1 below the rotating shaft 6 of locking handle, again because locking handle 7 is provided with shotpin 5, and shotpin 5 is positioned at the top of locking handle rotating shaft 6, thereby shotpin 5 can be under the spring power effect of torsion spring 3 rotates and closely connected with the outside 1 of coupler body around locking handle rotating shaft 6. Meanwhile, shotpin 5 is also positioned at sealing handle 2 tops that force sealing handle 2 to do to turn clockwise. Therefore when occurring accidental External Force Acting in the outside of sealing handle 2 and forcing sealing handle 2 while turning clockwise, shotpin 5 has hindered and has sealed the rotation trend of handle 2, thus realized between coupler body 1 and gib head 8 under non-artificial state can not release opening object. As shown in Figure 2, when between needs coupler body 1 and gib head 8 during in opening released state, first the outer downside of locking handle 7 is imposed to locking handle 7 and make the power being rotated counterclockwise around locking handle rotating shaft 6, thereby make shotpin 5 throw off sealing handles 2. Now seal handle 2 and be under no restraint in dextrorotation veer, therefore as long as in the outside application of force of sealing handle 2, the upper and lower part of sealing handle 2 just can turn clockwise around sealing handle rotating shaft 4, realizes the opening release object under artificiality.

Claims

1. a self-locking safety hook, coupler body, gib head, sealing handle, locking handle, the rotating shaft of sealing handle, the rotating shaft of locking handle, torsion spring, shotpin form, it is characterized in that coupler body is provided with sealing handle and locking handle, and rotating shaft is connected with coupler body with locking handle by the rotating shaft of sealing handle respectively; Described sealing handle and locking handle and sealing handle rotating shaft and the rotating shaft of locking handle form the fixed hinge form of two rotary pairs, and two rotary pairs lay respectively at the middle part of sealing handle and locking handle.

2. a kind of self-locking safety hook according to claim 1, is characterized in that being equipped with torsion spring in the rotating shaft of described sealing handle and the rotating shaft of locking handle; Described torsion spring presses closely connected in the inner side of ditch head by the lower outside of sealing handle.

3. a kind of self-locking safety hook according to claim 1 and 2, it is characterized in that described locking handle top is provided with shotpin, torsion spring is closely attached to shotpin in the outside of ditch body, and shotpin is arranged on restriction sealing handle simultaneously and can not does the top, position of contrary spring force direction rotation.

4. a kind of self-locking safety hook according to claim 1 and 2, is characterized in that described shotpin does after contrary spring force direction rotates to an angle to throw off sealing handle at locking handle.