CN205802785U - A kind of Weight type Automatic unhooking hook - Google Patents

Abstract

The utility model discloses a kind of Weight type Automatic unhooking hook, fix connection one end in ordinary lifting hook opening oblique direction and be furnished with the bar of weight, be connected with bearing pin and spin head with in the middle part of suspension hook at it；Being provided with double rocker mechanism at suspension hook opening part, its frame is suspension hook, and suspension hook head is just inserted in the hole on lower rocking bar when hoisting heavy, and connecting rod and upper end rocking bar conllinear；And it is furnished with suitable counterweight at the head of two rocking bars.This utility model achieves suspension hook when putting down goods, suspension hook Automatic-falling under gravity, when lifting cargo, suspension hook mouth can be by rocking bar self-closed under gravity locked function, thus solve without manually breaking off relations when putting down goods, and the practical problem that goods comes off during hanging.This utility model saves manpower, safe and reliable and easy and simple to handle.

Description

A kind of Weight type Automatic unhooking hook

Technical field

This utility model relates to a kind of crane gear, particularly relates to crampon.

Background technology

Crane gear is a requisite engineering machinery of class, mostly needs to use suspension hook to hang weight.And currently use Suspension hook, in order to prevent weight from coming off during handling, cause major accident, be all designed with certain Anti-hook releasing device, but This has resulted in when hoisting heavy, and lower platform needs a people to hang weight, and eminence platform also needs to a people and manually breaks off relations, Cause the waste of human resources.In order to ensure the intensity of suspension hook, the weight of suspension hook is generally large, and long-time frequent operation can be quickly Cause manpower tired and the damage of tendon.

Utility model content

The purpose of this utility model there is provided a kind of Weight type Automatic unhooking hook, both achieved suspension hook when unloading goods from The dynamic function that comes off, has ensured that again weight does not falls off during handling, saves manpower, safe and reliable and easy and simple to handle.

The technical solution of the utility model is: a kind of Weight type Automatic unhooking hook, it is characterized in that suspension hook head is tied by rod Structure fixes connecting shackle weight, and suspension hook is connected with spin head by stationary spindle, swivel head and suspension ring nut and opening Pin rotates to hang and connects, and upper rocker-counterweight is fixedly connected on rocking bar head, upper rocking bar bottom wherein and suspension hook weight and connects Being rotationally connected in the middle part of bar, connecting rod is rotationally connected on top and upper rocking bar, is rotationally connected in bottom and lower rocking bar, lower rocking bar and suspension hook Connection is rotated over, so that suspension hook, upper rocking bar, connecting rod and lower rocking bar constitute double rocker mechanism, under lower rocking bar at suspension hook suspension ring Portion is fixing connects lower rocker-counterweight, and lower rocking bar head is porose, and suspension hook hangs head and inserts in the hole, and seals and hangs mouth, and torsion spring is arranged on and shakes On the bearing pin that bar and link rotatable connect.

This utility model achieves suspension hook when putting down goods, and suspension hook under gravity can Automatic-falling；At lifting cargo Time, suspension hook mouth can by rocking bar self-closed under gravity locked, thus solve without manually breaking off relations when putting down goods, The practical problem come off during hanging with goods.

This utility model saves manpower, safe and reliable and easy and simple to handle.Can be prevented effectively from during lifting, goods The problem that may come off, and the function that when realizing putting down goods, suspension hook is automatically-unhooked under the effect of gravity and lever, make hanging During goods safer, and without manually breaking off relations when unloading goods.Simple in construction, saves manpower, easy to operate.

Accompanying drawing explanation

Fig. 1 is suspension hook structure diagram during hoisting heavy.

Fig. 2 is the suspension hook structure diagram in off working state.

In figure, label is as follows: 1-suspension hook weight, the upper rocker-counterweight of 2-, 3-swivel head, 4-suspension ring, 5-steel wire rope, 6-nut, Rocker-counterweight, 12-connecting rod, 13-torsion spring, the upper rocking bar of 14-under rocking bar, 11-under 7-split pin, 8-stationary spindle, 9-suspension hook, 10-.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.

This utility model is to fix in ordinary lifting hook opening oblique direction to connect one end and be furnished with the bar of weight, at itself and suspension hook Middle part bearing pin and spin head connect；Being provided with double rocker mechanism at suspension hook opening part, its frame is suspension hook, on lower rocking bar Suspension hook head is just inserted in hole when hoisting heavy, and connecting rod and upper end rocking bar conllinear；And it is furnished with conjunction at the head of two rocking bars Suitable counterweight.

As it is shown in figure 1, the size of suspension hook determines according to the maximum weight of required lifting.Suspension hook head is solid by rod shaped structure Determining connecting shackle weight 1, suspension hook 9 is rotationally connected with swivel head 3 with stationary spindle 8.Swivel head 3 and suspension ring 4 nut 6 and opening Pin 7 rotatably hangs connection.The firm bolt of steel wire rope 5 is in the circular rings on suspension ring 4 top.Upper rocker-counterweight 2 is fixedly connected on Upper rocking bar 14 head.It is rotationally connected in the middle part of upper rocking bar 14 bottom wherein and suspension hook weight 1 connecting rod.Connecting rod 12 top and on Rocking bar 14 is rotationally connected, and is rotationally connected in bottom and lower rocking bar 10.Lower rocking bar 10 and suspension hook 9 rotate over even at suspension hook suspension ring Connect, so that suspension hook 9, upper rocking bar 14, connecting rod 12 and lower rocking bar 10 constitute double rocker mechanism.Under the fixing connection in lower rocking bar 10 bottom Rocker-counterweight 11.Lower rocking bar 10 head is porose, and suspension hook 9 hangs head and inserts in the hole, and seals and hangs mouth.Torsion spring 13 is arranged on rocking bar 14 He On the bearing pin that connecting rod 12 is rotationally connected.

During work, manually hanging upper weight, the clockwise torque around stationary spindle 8 rotation that its weight produces is far longer than The anticlockwise moment that suspension hook weight 1 produces, so that suspension hook is positioned at position shown in Fig. 1.Now, produce at lower rocker-counterweight 11 Under anticlockwise moment, making lower rocking bar 10 around the bearing pin connected with suspension hook 9, go to position shown in Fig. 1, suspension hook 9 hangs under head inserts and shakes In hole on bar 10, sealing and hang mouth, connecting rod 12 and upper rocking bar 14 are located exactly at straight line, are in dead-centre position.From regardless of Hanging over suspension ring in suspension hook to the lower great impulsive force of rocking bar 10, lower rocking bar 10 also will not move, thus firm closing suspension hook 9 Hang mouth, prevent hoisting heavy when lifting because impact and concussion come off, cause major accident.It is arranged on rocking bar 14 and connecting rod 12 Torsion spring 13 on the bearing pin being rotationally connected, is possible to prevent when suspension hook impact or concussion, and impact force makes double rocker mechanism By the dead-centre position shown in Fig. 1, reliable guarantee suspension hook mouth will not be opened, and prevents weight from coming off during hanging and causes tight Weight accident.

When unloading weight, when weight touches landing platform, and steel wire rope 5 relaxes, and the clockwise moment that weight produces disappears, The clockwise moment that the anticlockwise moment that suspension hook weight 1 produces produces slightly larger than suspension hook deadweight, suspension hook 9 will be around stationary spindle 8 Rotate counterclockwise to position shown in Fig. 2.Meanwhile, the anticlockwise moment that upper rocker-counterweight 2 produces, overcome the elastic force of torsion spring 13, make Double rocker mechanism passes through dead-centre position, and lower rocking bar 10 acts on the up time of generation jointly at upper rocker-counterweight 2 and lower rocker-counterweight 11 Under pin moment loading, going to position shown in Fig. 2 clockwise, so that suspension hook is closed mouth and opened, weight is linked up with at himself gravity Effect under, automatically come off smoothly from suspension hook 9, it is achieved the function of suspension hook Automatic-falling.

When mounting weight next time, hold the suspension hook weight 1 being combined with hands simultaneously and upper rocker-counterweight 2 is used clockwise Power, the anticlockwise moment produced because of suspension hook weight 1 is slightly larger than the clockwise moment that suspension hook deadweight produces, and the least power can make to hang It is hooked under the state that mouth is opened and rotates counterclockwise, hang up weight smoothly, when suspension hook rises painstaking, unclamp and hold suspension hook weight 1 He The hands of upper rocker-counterweight 2, lower rocking bar 12 can be positioned at position shown in Fig. 1 under the effect of lower rocker-counterweight 11 again, thus firm By closing suspension hook mouth, prevent from breaking off relations in hoisting process and causing strict liability accident.

Claims (1)

1. a Weight type Automatic unhooking hook, is characterized in that suspension hook head fixes connecting shackle weight (1), suspension hook by rod shaped structure (9) it is rotationally connected with swivel head (3) by stationary spindle (8), swivel head (3) and suspension ring (4) nut (6) and split pin (7) Rotating to hang and connect, upper rocker-counterweight (2) is fixedly connected on rocking bar (14) head, upper rocking bar (14) bottom wherein and suspension hook Being rotationally connected in the middle part of weight (1) connecting rod, connecting rod (12) is rotationally connected, at bottom and lower rocking bar on top and upper rocking bar (14) (10) being rotationally connected, lower rocking bar (10) and suspension hook (9) rotate over connection at suspension hook suspension ring, so that suspension hook (9), upper rocking bar (14), connecting rod (12) and lower rocking bar (10) constitute double rocker mechanism, lower rocking bar (10) bottom is fixing connects lower rocker-counterweight (11), Lower rocking bar (10) head is porose, and suspension hook (9) hangs head and inserts in the hole, and seals and hangs mouth, and torsion spring (13) is arranged on rocking bar (14) and connects On the bearing pin that bar (12) is rotationally connected.