CN2151125Y - Connector for fast arrangement of pendant chain - Google Patents

Abstract

The utility model relates to a connection device for fast pendant chain detaching, particularly a pendant chain connection fitting which is used for lifting heavy weights, for example, sugarcane. The connection device for fast pendant chain detaching adopts a hook means to make the open ends of the two-segment-type pendant chain connect, and bundles and lifts fine long-strip logs and steel materials. The connection device for fast pendant chain detaching has a rotary hook (3) which is tied and hung on the open end head rings of a short chain by a chain tying pole (2); the link cover of a long chain is hung on the hook head of a rotary hook (5); the rotary hook (5) is rotated reversely so that a fastening board (3) fastens the rotary hook (5) fixedly, which makes the open ends of the two-segment-type pendant chain form a rigid endless chain, and heavy weights bundle and lift safely. When the connection device for fast pendant chain needs detaching, the back end of the fastening board (3) is prized and the rotary hook (5) casts off fastening immediately. The utility model can turn over alone by means of the gravity of the heavy weight and the link which is sheathed and hung on the hook head of the rotary hook slides quickly.

Description

Connector for fast arrangement of pendant chain

The utility model relates to a kind of accessory of lifting chain sling, particularly a kind of connecting device that is used for the chain sling fast assembling-disassembling.

At present, at loading and unloading liftings elongated strip shaped garden wood, steel, especially roll sugar refinery loading and unloading sugarcane and so on when playing weight, general custom is to hang with rope coil, and this method work efficiency is very low, and is also very dangerous.The comparatively advanced method that occurs in recent years is to adopt two sectional type garden ring chain sling dress to hang, being about to the long-chain of one pair or two pairs chain sling and garden, the termination ring of short chain is hung on the crane hook, with the lifting thing of long-chain and short chain pocket bundle elongated strip shaped, the beginning of long-chain and short chain is buckled connection with connecting device again.The most common connecting device is the bolt-type coupling member.Its hitch is to buckle on the long-chain or the headring at short chain beginning, and behind the pocket bundle lifting thing, the termination ring that will insert in the hitch same pair short chain or long-chain with latch interts the locking lifting again.As long as pull off the latch that is inserted on the hitch, can untie chain sling.The structure of this bolt-type coupling member is unreasonable, and in the hoisting heavy process, chain sling and hitch produce bigger shearing force to latch, is hit slightly, and latch is easy to be difficult to by bending that pull comes out from hitch.In this case, the suffered power in the joint of the seizing wire of tractive latch is just bigger, and joint is very easily pullled to come off or make the seizing wire fracture.The mounting or dismounting operation of this coupling member bothers, speed is slow, and often makes trouble former because of the split broken hair of latch.

The utility model be will to the public provide a kind of rational in infrastructure, compact light and handy, chain sling is connected novel chain sling connecting device reliable, that mounting or dismounting are simple to operation, safe in utilization.

Below in conjunction with accompanying drawing structure of the present utility model and embodiment are comprehensively described in detail:

Fig. 1 is the cut-away view of planform of the present utility model;

Fig. 2 is its service condition scheme drawing.

This novel chain sling connecting device is to adopt the hook mode, and beginning of the long-chain of same pair of chain sling and short chain is linked up the bundle weight of slinging.Its principal feature is to have designed a swivel hook (5).Swivel hook (5) is blocked, and when it can not be overturn, it promptly was a rigid construction device, just the long-chain of one pair of chain sling and the beginning hook of short chain can be linked up with it; After the clamp (3) that fixes swivel hook (5) was thrown off, swivel hook (5) overturn at once, thereby the chain sling that hook is taken apart.Its version is: in the middle of a support body (1) that mainly is made of two clamping plate that be arranged in parallel, perpendicular to the clamping plate plane of support body (1), installing one and be used for the bolt chain post (2) of bolt extension chain sling ring, a clamp axle (4) and a swivel hook axle (6) that is used for equipped swivel hook (5) that is used to assemble clamp (3).Bolt chain post (2) is packed in the position, top of support body (1), clamp axle (4) is the top of device in swivel hook (5), it is the anterior position place of the middle part of support body (1), swivel hook axle (6) then is packed in the lower portion of support body (1), clamp (3) is to be contained on the clamp axle (4) with the front end hinge, clamp (3) fastens the front end face on the hook body top of swivel hook (5) with the stopping table on its baseplane, overturns forward thereby limiting swivel hook (5).Swivel hook (5) be one "

" the shape hook, its hook body is partly longer, gib head is partly short slightly, swivel hook (5) be with on its bent hook part, axial line is fitted on the swivel hook axle (6) perpendicular to the through hole of whole hook-type face.For security insurance, avoid clamp (3) freedom upwards to stir, an available spring applies a downward application force all the time to the rear end of clamp (3).Comparatively easy scheme is that the end hook with an extension spring (8) hangs on the position, rear end of clamp (3), and the other end of extension spring (8) then is hooked on the spring-hanging column (7) that is installed in support body (1) position, the back lower place; For restriction swivel hook (5) turn over and swivel hook (5) rotation after, clamp (3) also turns over down, thereby also on support body (1), install and be provided with a position-limited lever (9), position-limited lever (9) is when being packed in the normal hook work of swivel hook (5) on the support body (1), the position of the hook body termination portion back that flushes with hook body top end face.

During use, two big end ring with long-chain in the same pair of chain sling (10) and short chain are suspended on the crane hook (11) earlier, this novel chain sling connecting device is to hang on the headring of short chain (perhaps long-chain) on the beginning with bolt chain post (2) bolt, after having tied weight with the beginning pocket of two sections chains of this pair, the chain link cover that is about on long-chain (perhaps short chain) prove-in length hangs on the gib head of swivel hook (5), and with swivel hook (5) push away toward the revolution, block swivel hook (5) so that the stopping table on clamp (3) baseplane supports, tied weight so the beginning of two sections chains just is connected into a loop chain circle pocket.Because on support body (1), the front end of clamp (3) partly almost forms an osed top ring with swivel hook (5), the chain link that cover hangs on swivel hook (5) begin chain will not be deviate from.Moreover, the designed swivel hook (5) of this novel connecting device can resolve into to the bending moment force of coupler body with to these two component of lateral pressure of swivel hook axle (6) playing application force that weight executes, rather than general suspension hook like that only bears bending moment force, so, swivel hook (5) but the cross-sectional plane of coupler body just respective design get littler, like this, whole novel chain sling connecting device also just can be made into compact conformation, small and exquisite member.

Need unload when taking off when playing a weight, as long as the rear end of clamp (3) slightly firmly upwards one is prized, under the action of gravity that plays weight, swivel hook (5) is deviate from i.e. upset forward voluntarily after the restriction of the stopping table on clamp (3) bottom surface at its hook body head end, then cover hang over swivel hook (5) but chain sling ring on the gib head just slippage drop out.Crane continues upwards lifting, and whole pair of chain sling just can be drawn out easily.

Claims (1)

1, a kind of connecting device that is used for the chain sling fast assembling-disassembling, it is characterized in that: in the middle of the support body (1) that mainly constitutes by two clamping plate that be arranged in parallel, clamping plate plane perpendicular to support body (1), installing bolt chain post (2), clamp axle (4) and swivel hook axle (6), bolt chain post (2) is packed in the position, top of support body (1), clamp axle (4) device is at the anterior position place of support body (1) middle part, swivel hook axle (6) is packed in the lower portion of support body (1), clamp (3) front end hinge is contained on the clamp axle (4), clamp (3) fastens the front end face of the hook body top ends of swivel hook (5) with the stopping table on its baseplane, swivel hook (5) is with on its bent hook part, axial line is fitted on the swivel hook axle (6) perpendicular to the through hole of hook-type face, one end hook of extension spring (8) hangs on the position, rear end of clamp (3), the other end of extension spring (8) is hooked on the spring-hanging column (7) that support body (1) position, the back lower place installing, and position-limited lever (9) is packed in the position of the hook body termination portion back that swivel hook (5) the hook body top end face on the support body (1) flushes.

Images