CN202924590U

CN202924590U - Novel crane hook anti-drop device

Info

Publication number: CN202924590U
Application number: CN 201220166792
Authority: CN
Inventors: 程小军; 李世东
Original assignee: Baiyin Nonferrous Group Co Ltd
Current assignee: Baiyin Nonferrous Group Co Ltd
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2013-05-08
Anticipated expiration: 2022-04-19

Abstract

The utility model discloses a novel crane hook anti-drop device which comprises a crane hook and a hook anti-drop device mounting hole on the hook, wherein the hook anti-drop device mainly comprises an anti-drop lock tongue, an acting shaft, a counter weight and a positioning ring; the anti-drop lock tongue is of a block-shaped structure of which one end is provided with a groove; the open end of the anti-drop lock tongue is hinged with a connecting rod which is fixedly connected with the counter weight and the acting shaft; the acting shaft is inserted into the hook anti-drop device mounting hole; and the positioning ring is arranged on the acting shaft and is positioned at two sides of the hook anti-drop device mounting hole to be fixedly connected with the hook anti-drop device mounting hole. The problems that the anti-drop device is high in failure rate and is wasted due to a spring factor in the conventional crane hook anti-drop device are solved; and moreover, the failure-free and maintenance-free effect is achieved.

Description

A kind of novel crane hook anti-drop device

Technical field

The utility model relates to a kind of novel crane hook anti-drop device.

Background technology

The crane hook anti-drop device is the safety attachment that must join on the hoisting crane take hook as suspender, and this safety attachment adopts spring usually, as the power that resets of escapement.Be subjected to the impact of the restriction of variable load number of times, spring mounting structure restriction and spring-mass due to spring, cause anti-drop device fault rate in application process higher, and discarded situation about using is used to weight-lifting equipment and brought potential safety hazard.Old-fashioned suspension hook without the anti-drop device mounting hole can't be installed anti-drop device in addition, changes new-type suspension hook expense larger.

The utility model content

The utility model provides a kind of novel crane hook anti-drop device, solving for existing crane hook anti-drop device because the spring factor causes the anti-drop device fault rate higher, and then the problem of discarded use.

For this reason, adopt following technical scheme: a kind of novel crane hook anti-drop device, comprise the lifting hook looseness preventing device mounting hole on crane hook and this suspension hook, described lifting hook looseness preventing device mainly comprises anticreep dead bolt, action axle, clump weight and steady ring; Described anticreep dead bolt is the block structure that an end has groove; The open end of this anticreep dead bolt is all hinged with the pipe link of captiveing joint with clump weight and described action axle, and should insert in described lifting hook looseness preventing device mounting hole by action axle, described steady ring be placed on described action axle and be in described lifting hook looseness preventing device mounting hole both sides and and it is affixed.

The utility model has solved existing crane hook anti-drop device because the spring factor causes the anti-drop device fault rate higher, and then the discarded problem of using.And trouble free, non-maintaining effect have been reached.The annex that the utility model provides can solve the old-fashioned problem that anti-drop device can't be installed without anti-drop device mounting hole suspension hook.

Description of drawings

Fig. 1 is the utility model installation site schematic diagram;

Fig. 2 is structural representation of the present utility model;

Fig. 3 is the utility model accessory structure schematic diagram.

Specific implementation method

Below in conjunction with accompanying drawing, the utility model and beneficial effect thereof are described in further detail.

Embodiment 1, see figures.1.and.2, a kind of novel crane hook anti-drop device comprises the lifting hook looseness preventing device mounting hole 2 on crane hook 1 and this suspension hook 1, and described lifting hook looseness preventing device mainly comprises anticreep dead bolt 3, action axle 5, clump weight 4 and steady ring 6; Described anticreep dead bolt 3 is the block structure that an end has groove; The open end of this anticreep dead bolt 3 is all hinged with the pipe link of captiveing joint with clump weight 4 and described action axle 5, and should insert in described lifting hook looseness preventing device mounting holes 2 by action axle 5, described steady ring 6 be placed on described action axle 5 and be in described lifting hook looseness preventing device mounting hole 2 both sides and and it is affixed.

The making of embodiment 1 is decided according to the suspension hook size.Before installing, anticreep dead bolt 3, action axle 5, steady ring 6, clump weight 4 are separately independently.First anticreep dead bolt 3 openings are passed the neck of hook of suspension hook 1 during installation, from anticreep dead bolt 3 one side opening insert action axles 5, to move after steady ring 6 of the anticreep dead bolt 3 inboard covers of openings and after axle 5 passes lifting hook looseness preventing device mounting hole 2, a steady ring 6 will be installed again, the axle 5 that then will move passes from anticreep dead bolt 3 opposite sides, adjust at last steady ring 6 positions, steady ring 6, action axle 5, clump weight 4 are welded and fixed.Weight take action axle 5 as fulcrum clump weight 4 should be able to make anticreep dead bolt 3 easily to clump weight 4 sideway swivels.

After installing, effect as shown in Figure 1, due to gravity and power of rotating to the clump weight side as the axle center take mounting hole 2 of the described lifting hook looseness preventing device generation of leverage, this power makes lifting hook looseness preventing device and suspension hook 1 consist of the ring of a closure, and the steel rope in ring can not deviate from.Need to put into or when taking out steel rope, add an external force lifting hook looseness preventing device counter-rotation is got final product, when external force disappears, lifting hook looseness preventing device resets and consists of the ring of a closure with suspension hook 1.

Embodiment 2, with reference to Fig. 3, for the old-fashioned suspension hook without lifting hook looseness preventing device mounting hole 2, the utility model also comprises accessory main body, this accessory main body 7 is the tubular structure of opening, the affixed connecting panel 9 of this open end has the locking connecting bore on this connecting panel 9, affixed mounting hole 8 on the periphery relative with the open end of described accessory main body 7.Accessory main body 7 is arranged on suspension hook 1 correct position and utilizes locking connecting bore on connecting panel 9 to be tightened by bolts and fix this accessory main body 7 and be integrated with suspension hook 1, then the described lifting hook looseness preventing device of embodiment 1 is arranged on described mounting hole 8 and gets final product.

Claims

1. novel crane hook anti-drop device, comprise the lifting hook looseness preventing device mounting hole (2) on crane hook (1) and this suspension hook (1), it is characterized in that: described lifting hook looseness preventing device mainly comprises anticreep dead bolt (3), action axle (5), clump weight (4) and steady ring (6); Described anticreep dead bolt (3) is the block structure that an end has groove; The open end of this anticreep dead bolt (3) is all hinged with the pipe link of captiveing joint with clump weight (4) and described action axle (5), and should insert in described lifting hook looseness preventing device mounting hole (2) by action axle (5), described steady ring (6) is placed in described action axle (5) and go up and is in the both sides of described lifting hook looseness preventing device mounting hole (2) and affixed with it.

2. a kind of novel crane hook anti-drop device according to claim 1, it is characterized in that: described lifting hook looseness preventing device also comprises accessory main body (7), this accessory main body (7) is the tubular structure of opening, the affixed connecting panel of this open end (9), this connecting panel has the locking connecting bore on (9), affixed mounting hole (8) on the periphery relative with the open end of described accessory main body (7).