CN201228198Y

CN201228198Y - Unhooking-preventing apparatus installed on slings

Info

Publication number: CN201228198Y
Application number: CNU2008200594809U
Authority: CN
Inventors: 张伟钢; 黄永华; 童和勇; 钱焱
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2008-06-06
Filing date: 2008-06-06
Publication date: 2009-04-29
Anticipated expiration: 2018-06-06

Abstract

The utility model relates to an anti-release device which is arranged on a lifting tool and used for solving the problem that the anti-release device arranged on a hanging hook is easy to release, the device is provided with an anti-release part which can rotate on the lifting tool of a hanging loop of a transverse shaft, the body of the anti-release part includes a bottom board and two side boards, the boards are all formed by mutually welding steel boards; furthermore, the anti-release part can lock a hook head of the hanging hook by the self-gravity after the hanging hook hooks the hanging loop of the transverse shaft, when in occurrence of accidents, the anti-release part has sufficient anti-collision strength and can tightly wrap the hook head to prevent the release, the use is safe and reliable, and the anti-release device can be applicable to the use on the lifting tool for various types of the hanging loops of the transverse shafts.

Description

Be installed in the lock hook device on the suspender

Technical field

The utility model relates to a kind of lock hook device, refers in particular to a kind of lock hook device that is installed on the suspender.

Background technology

Prevent in the weight-lifting equipment safety device that both at home and abroad suspender is because of the unexpected safety device that breaks off relations, only limit to be installed in the lock hook device on the suspension hook at present, this lock hook device has the function that effectively prevents rich sex cords tool (steel rope, nylon rope etc.) earrings unhook phenomenon.

Be installed in lock hook device on the suspension hook two kinds of gravity type boat davit and spring loadeds are generally arranged, this safety device as shown in Figure 1, Fig. 1 is the existing lock hook schematic representation of apparatus that is installed on the suspension hook, the structure of the suspension hook 1 among Fig. 1 is: be equipped with the connecting element of fixing with hook 11 12 on hook 11, be equipped with a rotary sector 13 on connecting element 12.At ordinary times, sector 13 is in hang by deadweight or elastic force, when suspension hook 1 lifting, when moving in the rigging 14 past hooks 11 top of sector 13 toward hooks 11 boosted, rigging 14 is entered in the gib head of hook 11 fully, at this moment sector 13 is by deadweight or the former sagging position of elastic returning, with rigging 14 lockings.

Above-mentioned this lock hook device is applicable to soft rigging.But in large-scale iron and steel enterprise and other heavy enterprises, the main jack up unit of hoisting crane is generally deposited the handling work that carries raw material supplying and finished product, and promptly suspended object is very heavy, therefore is not suitable for adopting suspension hook to add rigging and carries out handling, but hang thing by the suspender of special use.Wherein the most frequently used a kind of form is the special hanger (hereinafter to be referred as transverse axis joint hinge suspender) of transverse axis joint hinge shown in Figure 2, and suspender 2 shown in Figure 2 is made up of the suspender base 21 of fixed spreader and suspended object (not shown) and the transverse axis joint hinges 22 that are fixed in two mounting holes 212 of suspender base 21 tops.During operation, the chassis 211 and the suspended object of suspender base 21 are fixed, the hook 11 with suspension hook shown in Figure 11 hooks transverse axis joint hinge 22 again, and sector 13 shown in Figure 1 is just automatically with 22 lockings of transverse axis joint hinge.And the sector device that only leans against the above-mentioned gravity type boat davit that adopts on the suspension hook and two kinds of lock hooks of spring loaded on this suspender implement lock hook exist below very big accident potential, reason is:

1 owing to adopt the suspended object self of transverse axis joint hinge suspender very heavy, when therefore suspender lands in operation process the porpoising of suspension hook very big, transverse axis joint hinge 22 very easily breaks above-mentioned thin sector 13, causes the lock hook device to damage, thus generation unhook phenomenon.

2, (need length because the distance between the transverse axis joint hinge 22 among above-mentioned Fig. 2 and the chassis 211 of suspender base 21 is big greater than the gib head of hook 11, otherwise hook 11 can't hook transverse axis joint hinge 22), when if suspension hook 1 has the porpoising of other reasons or loose hook during operation, the lock hook device will carry the weight of whole suspension hook assembly, therefore can break sector 13 at any time, cause the lock hook device to damage, thereby produce the unhook phenomenon.

3, in operation with suspension hook handling object, because the influence of some inevitable factors such as blocking or clamp of each other sharp impacts of suspended object, suspender, suspension hook also will bear bigger compelling force, because the existence of these power, also easily make the lock hook device directly skid off gib head and malfunctioning, cause automatically to come off.

Therefore, the lock hook device that is installed on the suspension hook as shown in Figure 1 is not suitable for being applied on the special hanger of large-scale iron and steel enterprise and heavy enterprise, and therefore hanging on exploitation actv. lock hook device in this type of special use is the task of top priority in the industry.

The utility model content

Purpose of the present utility model is in order to overcome the problem that above-mentioned prior art exists, provide a kind of can stop since use on potential safety hazard that the suspender unhook causes and the special hanger that is applicable to various transverse axis joint hinges be installed in lock hook device on the suspender.

The realization the technical solution of the utility model is:

A kind of lock hook device that is installed on the suspender is characterized in that comprising with lower member:

Suspender is made up of base and the transverse axis joint hinge that is fixed in two mounting holes of suspender base top;

The lock hook parts, base inside with described suspender is installed, its structure is: a base plate, on two sides of base plate respectively with the base plate fixedly side plate of vertical direction that makes progress, above two side plates, be equipped with the identical at least circular hole of diameter respectively with the mounting hole of described suspender, these two circular holes are that described lock hook parts can rotate around the transverse axis joint hinge on the outstanding transverse axis joint hinge that is placed in the described suspender base;

The spacing of the base plate of the bottom of described transverse axis joint hinge and described lock hook parts is L, and the gib head diameter that is hung in the suspension hook on the described transverse axis joint hinge is d, and gib head length is D, and then, L, D, d satisfy relational expression:

d<L<D。

Effect of the present utility model:

The lock hook device that is installed on the suspender of the present utility model is that rotary lock hook parts have been installed on the suspender of transverse axis joint hinge, these lock hook parts itself are made up of base plate and two side plates, all adopting steel plate to be welded to each other forms, and after suspension hook hooks transverse axis joint hinge on the suspender, these lock hook parts are by deadweight, can lock the gib head of suspension hook, therefore when meeting accident, these lock hook parts have enough impact strengths, and can tightly wrap gib head, it is not broken off relations, safe in utilization, reliably, can be suitable for using on the suspender of various transverse axis joint hinges.

For further specifying above-mentioned purpose of the present utility model, constructional feature and effect, the utility model is elaborated below with reference to accompanying drawing.

Description of drawings

Fig. 1 is the existing lock hook schematic representation of apparatus that is installed on the suspension hook;

Fig. 2 is the scheme drawing of existing transverse axis joint hinge suspender;

Fig. 3 is the scheme drawing of the lock hook parts in the utility model;

Fig. 4 is the lock hook schematic representation of apparatus that is installed on the suspender of the present utility model;

Fig. 5 is the running condition figure of suspender of the present utility model on suspension hook.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment that is installed in the lock hook device on the suspender of the present utility model is elaborated.

Referring to Fig. 3-Fig. 4, Fig. 3 is the scheme drawing of the lock hook parts in the utility model; Fig. 4 is the lock hook schematic representation of apparatus that is installed on the suspender of the present utility model.As shown in the figure, the lock hook device that is installed on the suspender of the present utility model is that lock hook parts 3 have been installed on the suspender 2 of transverse axis joint hinge shown in Figure 2, is described in detail as follows.

Mention above, suspender 2 is made up of base 21 and the transverse axis joint hinges 22 that are fixed in two mounting holes 212 of suspender base 21 tops.

Lock hook parts 3 of the present utility model are installed on the inside of the base 21 of described suspender 2, its structure is: a base plate 33, on two sides of base plate 33 respectively with the base plate 33 fixedly side plate 31 of vertical direction that makes progress, above two side plates 31, be equipped with the identical at least circular hole 33 of diameter respectively with the mounting hole 212 of described suspender 2, these two circular holes 33 are outstanding being placed on the transverse axis joint hinge 22 of described suspender 2, during installation, described transverse axis joint hinge 22 passes through behind two circular holes 33 of two mounting holes 212 of suspender base 21 and lock hook parts 3 fixing with suspender base 21 again, be that lock hook parts 3 of the present utility model are to utilize two circular holes 33 to hang to be installed on the base 21 in-to-in transverse axis joint hinges 22 of suspender 2, and can rotate around transverse axis joint hinge 22, form the suspender 4 with lock hook parts of the present utility model as shown in Figure 4.

Referring to Fig. 5, Fig. 5 is the running condition figure of suspender of the present utility model on suspension hook.If the spacing of the base plate 33 of the bottom of transverse axis joint hinge 22 and lock hook parts 3 is L, the diameter of establishing the gib head 51 of suspension hook 5 is d, and the length of gib head 51 is D, plays the effect of lock hook for making lock hook parts 3, in the utility model, must satisfy d＜L＜D.When suspension hook 5 liftings, earlier lock hook parts 3 are rotated an angle toward the place ahead, make the gib head 51 of suspension hook 5 hook transverse axis joint hinge 22, put down lock hook parts 3 then, lock hook parts 3 are by its deadweight, be in sagging position, because above-mentioned d＜L＜D, lock hook parts 3 are with gib head 51 lockings of suspension hook 5, even suspender 4 lands, make suspension hook 5 produce very big porpoising, because L＜D, again since these lock hook parts 3 automatically reset by the center of gravity effect, will gib head 51 obvolvents, stoped gib head 51 to be shifted effectively, prevented the unhook phenomenon in transverse axis joint hinge 22.

Better for the mousing-hook function that makes lock hook parts 3, base plate 33 is that the center is curved in the direction vertical with transverse axis joint hinge 22 with the middle A (shown in Figure 5) of base plate 33 in the present embodiment, the bottom shape coupling of the gib head 51 of the shape of arc and suspension hook 5.Two side plates 31 in the present embodiment are fan-shaped in addition.

Base plate 33 in the present embodiment and two side plates 31 all adopt steel plate and are welded to each other and form, and the lock hook parts 3 of composition have enough impact strengths, can wrap gib head when meaning takes place, and are suitable for using on the suspender of various transverse axis joint hinges.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.

Claims

1, a kind of lock hook device that is installed on the suspender is characterized in that comprising with lower member:

d<L<D。

2, the lock hook device that is installed on the suspender as claimed in claim 1 is characterized in that:

The base plate of described lock hook parts and two side plates all adopt steel plate and are welded to each other and form.

3, the lock hook device that is installed on the suspender as claimed in claim 1 is characterized in that:

Described base plate is that the center is curved in the direction vertical with described transverse axis joint hinge with the middle of base plate.

4, the lock hook device that is installed on the suspender as claimed in claim 3 is characterized in that:

The gib head bottom shape coupling of the shape of described arc and described suspension hook.

5, the lock hook device that is installed on the suspender as claimed in claim 1 is characterized in that:

Described two side plates are fan-shaped.