CN100482565C

CN100482565C - Automatic-disengagement hook

Info

Publication number: CN100482565C
Application number: CNB200610069292XA
Authority: CN
Inventors: 董林春; 傅袆; 陈建国
Original assignee: Qingdao Port Group Co Ltd
Current assignee: Qingdao Port Group Co Ltd
Priority date: 2006-10-10
Filing date: 2006-10-10
Publication date: 2009-04-29
Anticipated expiration: 2026-10-10
Also published as: CN1935619A

Abstract

The invention discloses an automatically removed lift hook, comprising cargo hooking hook body and stop tongue at hook mouth, where the hook body is supported in a box housing, a boom whose upper hanging hole extends out of the housing and lower part can slide up and down in the housing, is arranged between the top wall in the housing and the hook handle, and the two ends of a compression spring are situated between the boom and the top wall in the housing; below the bottom surface of the boom is equipped with a cam and ratchet wheel mechanism link device which can lock the hook mouth upward as bearing weight and make the hook mouth automatically opened as unloading. Thus, it has characters of saving labor and time, safe and reliable, high working efficiency and low loading and unloading costs.

Description

Automatic-disengagement hook

Technical field

The invention belongs to the loading and unloading suspender, the specifically a kind of coupler body of suspension hook and goods hoist cable of making extractd the suspender of disengaging automatically.

Background technology

During with the crane handling goods, existing handling mode is that the coupler body with common monohook colludes on the goods hoist cable and slings, when after goods is hung the destination, putting down, and need be by manually hook being taken off and could be broken off relations from the hoist cable of goods.Like this, just need the special staff of arrangement to wait and fall the place decoupling device at goods.The shortcoming of this artificial decoupling device mode is: throw up easily when on the one hand crane is carried the suspension hook taken on again, because of the people under decoupling device, people's goods does not separate, damage people's situation of suspension hook happens occasionally; Unload especially inconvenience of large cargo to hanging on the other hand, because of goods is big, also need climb down on goods swashes during staff's decoupling device, when goods swashed, careless slightly pedal had been slided the easy tumble injury of falling down; Also have, when suspension hook was combined into how secondary suspender operation, after manually hoist cable being removed from suspension hook, suspension hook very easily tangled the hoist cable secondary when crane hoisted once more, caused manually decoupling device once more.Therefore with common monomer suspension hook handling goods, the suspension hook of plucking suspender is taken a lot of work, effort, time-consuming, dangerous, makes handling efficiency low, the shipping and delivery cost height.

Summary of the invention

Technical matters to be solved by this invention is, overcomes existing handling goods with common monomer suspension hook, need use manual removal's suspension hook during unloading, takes a lot of work, effort, time-consuming and unsafe shortcoming, and a kind of automatic-disengagement hook is provided.

In order to solve the problems referred to above that prior art exists, the present invention adopts following technical proposals to realize: suspension hook comprises the coupler body and the retaining tongue of retaining at the mouth of hook that can collude the hoisting thing, the coupler body supporting is installed in the box-type shell, between the neck of hook of the inner roof wall of housing and coupler body, its top is installed stretches out the arm that housing, bottom can slide up and down in housing, the two ends of compression spring are sitting between arm and the housing inner roof wall; Below the arm bottom surface, cam and ratchet device linkage that the lockable mouth of hook is upwards when also load-bearing being installed, the mouth of hook is opened automatically when unloading.

The present invention also has following technical characterictic:

Described cam and ratchet device linkage are on the housing below the arm bottom surface, are supported with rotating shaft perpendicular to the housing Width, the coaxial ratchet that is fixed with cam and can inserts and break away from the end ratchet gear teeth on the neck of hook in the rotating shaft; Below the bottom surface of arm, be provided with spring socket sleeve perpendicular to rotor shaft direction, assist spring is installed in the spring socket sleeve, and the one end leans against on the interior wall of housing, and the other end is the free end that can stretch in spring socket sleeve; One end of push rod is rotatably supported on the salient point of cam, and the other end stretches to the free end of assist spring in the spring socket sleeve;

The installation of described compression spring is that two compression springs are sitting in respectively between the step and housing inner roof wall of both sides below the arm;

Stretch out the outer wall of housing at an end of described rotating shaft, its termination is fixed with handle, and the outer wall of housing is provided with the guide groove that rotates guiding into handle.

Advantage of the present invention and good effect are, because the lockable mouth of hook made progress, when unloading the mouth of hook opened automatically when above-mentioned suspension hook was equipped with load-bearing cam and ratchet gearing device, during the hoisting thing, upwards locking of the mouth of hook under the effect of cam and ratchet gearing device, the hoist cable of goods hangs in the hook chamber can not deviate from through the retaining tongue on the coupler body; After the suspension hook unloading, hoist cable is lax, and compression spring pushes away arm and moves down, under the effect of cam and ratchet gearing device, make the hoist cable of the automatic sagging disengaging goods of coupler body, do not need artificial decoupling device, solved that people's goods does not separate and the staff climbs down the problem of decoupling device on tall and big goods swashes; When how secondary suspender operation, unloading back coupler body is sagging, and suspension hook can not collude extension with hoist cable once more yet when crane hoisted once more.Use above-mentioned suspension hook saving of labor, laborsaving, save time, safe and reliable, make rate of discharging improve several times and even tens of times, shipping and delivery cost reduces greatly.

Description of drawings

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is the external structure scheme drawing of the present invention at preparation bearing load state;

Fig. 2 is the partial schematic sectional view of Fig. 1;

The partial schematic sectional view of Fig. 3 during for load-bearing of the present invention;

Partial schematic sectional view when Fig. 4 unloads for the present invention.

The specific embodiment

Among Fig. 1, automatic-disengagement hook comprises the coupler body 1 that can collude the hoisting thing and with the retaining tongue 1.3 (referring to Fig. 2, Fig. 3, Fig. 4) of retaining torsion spring 1.5 pushings on the mouth of hook 1.1, the neck of hook 1.2 of coupler body 1 is bearing in bearing pin 2 on two walls of the lower-left side in the housing 4 rotationally along the thickness direction of housing 4; Door 5 is fixed by bolts to the end face of housing 4, and between housing 4 inner roof walls 4.1 and the neck of hook 1.2, the lifting hole(eyelet) 6.2 that its top is installed stretches out the arm 6 that housing 4, lower body 6.3 can slide up and down in housing 4.The lower end of vertical gravity compression spring 9 is sitting on the step 6.4 of lower body 6.3 left and right sides of arm 6, withstands on inner roof wall 4.1 both sides of housing 4 above; In the bottom surface of arm 6 below 6.1, when also load-bearing being installed the lockable mouth of hook 1.1 upwards, make during unloading the mouth of hook 1.1 open, make coupler body 1 sagging cam and ratchet device linkage automatically.

The lockable mouth of hook 1.1 upwards, make the mouth of hook 1.1 open downward cam and ratchet gearing device automatically during unloading during described load-bearing, be in the housing 4 of the bottom surface of arm 6 below 6.1, Width perpendicular to housing 4 is supported with rotating shaft 8.1, the coaxial ratchet 14 that is fixed with cam 10 and can inserts and break away from end ratchet 1.4 on the neck of hook 1.2 in the rotating shaft 8.1, the termination of stretching out housing 4 outer walls in rotating shaft 8.1 is fixed with handle 8, and the parts that can drive on rotating shaft 8.1 and the axle with hand turning handle 8 rotate; Parts accurate positioning when the different angles position in smooth and easy when handle 8 is rotated, the rotating shaft 8.1 is provided with the guide groove 3 of arc on the outer wall of housing 4, fixing pilot pin 8.2 is inserted in the guide groove 3 on the seat of handle 8.

In the housing 4, laterally be provided with the spring socket sleeve 13.1 of tubular below the bottom surface 6.1 of arm 6, assist spring 13 is installed in the spring socket sleeve 13.1, and the left end of spring leans against on the left side wall of housing 4, and right-hand member is a free end; Vertical fixing has push rod pin 7 on the projection of cam 10, and the right-hand member of push rod 11 is enclosed within on the push rod pin 7 rotationally, and its left end leans against and is buckled on the assist spring 13 free-ended platens 12, during push rod 11 sway, by platen 12 pushing assist springs 13.

When suspension hook is prepared to collude the load-bearing of hoisting thing, with hand handle 8 is pulled downwards earlier, drive rotating shaft 8.1 conter clockwises and turn over an angle, the salient point of rotating shaft 8.1 pulling cams 10 is to moving to left, the free end that drives push rod 11 by push rod pin 7 is by platen 12 compression assist springs 13, make the ready position of the tooth interlock on the ratchet 1.4 on ratchet 5 arrival and the neck of hook 1.2, this moment is under the effect of cam 10, the compression spring 9 of gravity is in half relaxed state, the bottom surface 6.1 of arm 6 gently is pressed on the salient point of cam 10, and the thrust of assist spring 13 makes cam 10 location; Upwards touch coupler body 1 with hand and make the mouth of hook 1.1 upwards, be installed in the tooth interlock on ratchet 14 and the ratchet 1.4 on the bearing pin 2, this moment, coupler body 1 reached closed lock-out state.Begin to lift goods, hoist cable enters the hook chamber of coupler body 1, and the torsion spring 1.5 pushing retaining tongues 1.3 that are installed in the mouth of hook 1.1 places block hoist cable and can not deviate from; Crane hoists and makes the suspension hook bearing load, arm 6 is carried on the crane, make the compression spring 9 of both sides be in compressive state, the pressure that eliminate cam 10 bottom surface 6.1 of arm 6, the elastic force of assist spring 13 is shifted cam 10 and ratchet 1.4 the preparation opening of right side onto, drives handle 8 and automatically restores to obliquely position (referring to Fig. 2, Fig. 3).

Among Fig. 4, after lift cargo arrives the destination, after goods lands, hoist cable is lax, load on the suspension hook is eliminated, push away arm 6 under the elastic force of compression spring 9, the bottom surface 6.1 of arm 6 is descending, cam 10 is pressed down along clockwise direction, drive push rod 11 and move to right to the direction from assist spring 13, the free end of assist spring 13 stretches to the right, its elastic force makes cam 10 location, drive simultaneously at the ratchet 1.4 of preparing the open position and ratchet 14 and throw off, this moment coupler body 1 because of the fastening power that loses click is in the downward state that freely swings, the hoist cable of goods is come off automatically finishes decoupling device.When reusing, only need the people to repeat above-mentioned action ratchet 1.4 and ratchet 14 are interlocked, suspension hook is in again in the readiness of hoisting.

Claims

1, a kind of automatic-disengagement hook, comprise the coupler body and the retaining tongue of retaining that can collude the hoisting thing at the mouth of hook, it is characterized in that: the coupler body supporting is installed in the box-type shell, between the housing inner roof wall and the neck of hook, the lifting hole(eyelet) that its top is installed stretches out the arm that housing, bottom can slide up and down in housing, the two ends of compression spring are sitting between arm and the housing inner roof wall; Below the arm bottom surface, cam and ratchet device linkage that the lockable mouth of hook is upwards when also load-bearing being installed, the mouth of hook can be opened automatically when unloading.

2, automatic-disengagement hook as claimed in claim 1, it is characterized in that: described cam and ratchet device linkage, be on the housing below the arm bottom surface, be supported with rotating shaft perpendicular to the housing Width, the coaxial ratchet that is fixed with cam and can inserts and break away from the end ratchet gear teeth on the neck of hook in the rotating shaft; Below the bottom surface of arm, be provided with spring socket sleeve perpendicular to rotor shaft direction, assist spring is installed in the spring socket sleeve, and the one end leans against on the interior wall of housing, and the other end is the free end that can stretch in spring socket sleeve; One end of push rod is rotatably supported on the salient point of cam, and the other end stretches to the free end of assist spring in the spring socket sleeve.

3, automatic-disengagement hook as claimed in claim 1 is characterized in that: the installation of described compression spring is that two compression springs are sitting in respectively between the step and housing inner roof wall of both sides below the arm.

4, automatic-disengagement hook as claimed in claim 2 is characterized in that: stretch out the outer wall of housing at an end of described rotating shaft, its termination is fixed with handle, and the outer wall of housing is provided with the guide groove that rotates guiding into handle.