CN203903779U - Self-locking type lifting hook - Google Patents

Abstract

The utility model provides a self-locking type lifting hook. The self-locking type lifting hook comprises a hook body of the lifting hook, wherein the hook body is connected with a sealing piece. The self-locking type lifting hook is characterized in that a groove is formed in the middle of the transverse section at the upper part of the hook body; transverse through holes are formed in the two edges of the groove; the through holes are used for mounting of a rotary shaft; the rotary shaft penetrates through a transverse through hole in the middle part of the sealing piece; the depth of the groove is greater than the diameter of the transverse through hole in the middle part of the sealing piece, so that the sealing piece is convenient to rotate; a hook head of the hook body is convex inwards; one part, which is located above the axis of the rotary shaft, of the sealing piece is a rotary part of the lifting hook; one part, which is located below the axis of the rotary shaft, of the sealing piece is a sealing buckle; the weight of the rotary part of the lifting hook is greater than that of the sealing buckle; a convex part at the tail end of the sealing buckle is a buckle head and can be engaged with the hook head of the hook body; the whole sealing part is in a bent shape.

Description

Self-locking type suspension hook

Technical field

The utility model relates to hanging device field, is specially a kind of suspension hook that can seal voluntarily.

Background technology

In modern architecture is produced, large-tonnage lifting is more and more, more and more higher to the requirement of hoisting connecting piece, requires safe and reliable.The suspension hook great majority that seal voluntarily at present used, for Spring driving sealing, if spring damages, cause the malfunctioning phenomenon of sealing, also need to change, and affect handling safety and handling efficiency.

Utility model content

For above-mentioned technical matters, the utility model provides a kind of simple in structure, safe ready, self-locking type suspension hook that reliability is high.Concrete technical scheme is as follows:

A self-locking type suspension hook, comprises suspension hook coupler body, and coupler body connecting sealed part, is characterized in that: in the middle of coupler body upper lateral section, be provided with groove, the both sides of groove are provided with cross through hole, and through hole is used for installing S. A., and S. A. is through the cross through hole at closure member middle part; Depth of groove is greater than the cross through hole diameter at closure member middle part, is convenient to closure member rotation; The gib head inwardly protruding of coupler body; The part that closure member is positioned at rotating shaft axis top is suspension hook rotation position, and the part that is positioned at rotating shaft axis below is sealing button, and suspension hook rotation position weight is greater than sealing button weight; The bossing of sealing button end is discount, can be meshed with the gib head of coupler body, and closure member integral body is bent;

The installation of closure member meets following condition: under loose hook-shaped state, closure member top weight is greater than bottom weight, and under Action of Gravity Field, around the rotation of rotating middle part axle, sealing button is opened; Under lifting state, closure member top is pulled up, and bottom is along middle part rotating shaft rotation, and the discount of sealing button is meshed with the gib head of coupler body, and sealing padlock closes.

Preferably, coupler body inner surface has latticed anti-skid structure.

Preferably, S. A. is bolt of rear end plate or bearing pin.

Compared to existing technology, self-locking type suspension hook tool of the present utility model has the following advantages:

During pine hook, under Action of Gravity Field, heavy bottom, closure member top is light, can open voluntarily suspension hook; During lifting, under the effect of lifting pulling force, closure member top is pulled up, sealing button autorotation, and the discount of sealing button is meshed with the gib head of coupler body, and suspension hook locking, has strengthened reliability and the safety of lifting operation.

Accompanying drawing explanation

Fig. 1 is the annexation schematic diagram of suspension hook and coupler body closure member in the utility model;

Fig. 2 hangs suspension hook opening figure in situation for filling;

Fig. 3 is suspension hook self-locking state figure under lifting state;

Fig. 4 is anti-skid structure schematic diagram inside coupler body;

In figure: 1-coupler body, 11-gib head, 12-anti-skid structure, 2-closure member, 21-suspension hook rotation position, 22-sealing button, 221-discount, 3-bolt of rear end plate or bearing pin.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

A self-locking type suspension hook, comprises suspension hook coupler body, coupler body 1 connecting sealed part 2, in the middle of coupler body 1 upper lateral section, be provided with groove, the both sides of groove are provided with cross through hole, and through hole is used for installing S. A., S. A. is bolt of rear end plate or bearing pin 3, and S. A. is through sealing, the cross through hole at 2 middle parts; Depth of groove is greater than the cross through hole diameter at closure member 2 middle parts, is convenient to closure member 2 rotations; Gib head 11 inwardly protrudings of coupler body 1; The part that closure member 2 is positioned at rotating shaft axis top is suspension hook rotation position 21, and the part that is positioned at rotating shaft axis below is sealing button 22, and suspension hook rotation position 21 weight are greater than sealing button 22 weight; The bossing of sealing button 22 ends is discounts 221, can be meshed with the gib head 11 of coupler body 1, and closure member 2 integral body are bent;

The installation of closure member 2 meets following condition: under loose hook-shaped state, closure member 2 top weight are greater than bottom weight, and under Action of Gravity Field, around the rotation of rotating middle part axle, sealing button 22 is opened; Under lifting state, closure member 2 tops are pulled up, and bottom is along middle part rotating shaft rotation, and the discount 221 of sealing button 22 is meshed with the gib head 11 of coupler body 1, sealing button 22 lockings.Coupler body 1 inner surface has latticed anti-skid structure 12.

The utility model is not limited to above-mentioned specific embodiment, and it carries out detailed, exemplary explanation as just example to a kind of form of the present utility model.Within not deviating from the scope of the utility model aim, those of ordinary skills can according to above-mentioned specific embodiment by various be equal to replace obtain technical scheme, but these technical schemes all should be included in the scope of claim of the present utility model and the scope that is equal within.

Claims (3)

1. a self-locking type suspension hook, comprises suspension hook coupler body, and coupler body connecting sealed part, is characterized in that: in the middle of coupler body upper lateral section, be provided with groove, the both sides of groove are provided with cross through hole, and through hole is used for installing S. A., and S. A. is through the cross through hole at closure member middle part; Depth of groove is greater than the cross through hole diameter at closure member middle part, is convenient to closure member rotation; The gib head inwardly protruding of coupler body; The part that closure member is positioned at rotating shaft axis top is suspension hook rotation position, and the part that is positioned at rotating shaft axis below is sealing button, and suspension hook rotation position weight is greater than sealing button weight; The bossing of sealing button end is discount, can be meshed with the gib head of coupler body, and closure member integral body is bent;

The installation of closure member meets following condition: under loose hook-shaped state, closure member top weight is greater than bottom weight, and under Action of Gravity Field, around the rotation of rotating middle part axle, sealing button is opened; Under lifting state, closure member top is pulled up, and bottom is along middle part rotating shaft rotation, and the discount of sealing button is meshed with the gib head of coupler body, and sealing padlock closes.

2. self-locking type suspension hook according to claim 1, is characterized in that: coupler body inner surface has latticed anti-skid structure.

3. self-locking type suspension hook according to claim 1 and 2, is characterized in that: S. A. is bolt of rear end plate or bearing pin.