CN203269321U - Release-preventing lifting hook - Google Patents

Abstract

The utility model discloses a release-preventing lifting hook which comprises a sling connector, a main shaft and a hook body, wherein the main shaft is connected with the sling connector and the hook body, a loop is sleeved on the main shaft, a certain gap is formed between the loop and the main shaft, a locating shaft for limiting the loop to move downwards is arranged on the main shaft, a chain is connected to the loop, and at least one latch hook is connected to the chain. The chain is arranged on the release-preventing lifting hook, a lifting appliance is fastened through the chain when the release-preventing lifting hook works, and can be lifted by the chain even if being separated from the hook, thus the release-preventing lifting hook is good in safety.

Description

A kind of dropping-proof hook

Technical field

The utility model relates to a kind of suspension hook.

Background technology

Existing dropping-proof hook comprises hoist cable connector, main shaft and coupler body, and main shaft connects hoist cable connector and coupler body, is fixed with elastic strip body on main shaft, and elastic strip body keeps off in the import and export of coupler body.This dropping-proof hook is only for the lighter article of rope class, for heavy suspender anticreep poor effect, and curved, the distortion easy to break of anti-flake.Safety is bad.

Summary of the invention

The technical problems to be solved in the utility model is: provide a kind of safety good dropping-proof hook.

In order to solve the problems of the technologies described above, the utility model comprises hoist cable connector, main shaft and coupler body, main shaft connects hoist cable connector and coupler body, on described main shaft, cover has ring set, between ring set and main shaft, certain interval is arranged, main shaft is provided with the fix shaft that the restriction ring set moves down, and is connected with chain on ring set, is connected with at least one latch hook on chain.

Hold the position for chain can be tied up the suspender of different size at the hook of coupler body, described latch hook has a plurality of, and the distance of an end that is connected ring set on each latch hook and chain is all unequal.

Hold the position for chain can be tied up the suspender of two kinds of different sizes at the hook of coupler body, described latch hook has two.

For the ease of changing ring set, described fix shaft and main shaft are threaded connection.

In order further to prevent slippage, be fixed with elastic strip body on described main shaft, elastic strip body keeps off in the import and export of coupler body.

Ring set slippage when better preventing work, described fix shaft has two, is in respectively the both sides of main shaft.

The beneficial effects of the utility model are: the utility model is provided with chain, during work, can suspender be pinioned by chain, even break off relations, chain also can hang suspender, and safety is good.

Description of drawings

Fig. 1 is structural representation of the present utility model;

In figure: 1, hoist cable connector, 2, main shaft, 3, ring set, 4, fix shaft, 5, chain, 6, latch hook, 7, latch hook, 8, coupler body, 9, elastic strip body.

The specific embodiment

A kind of dropping-proof hook as shown in Figure 1 comprises hoist cable connector 1, main shaft 2 and coupler body 8, and main shaft 2 connects hoist cable connector 1 and coupler body 8, and on main shaft 2, cover has ring set 3, between ring set 3 and main shaft 2, certain interval is arranged, and is locked on ring set 3 to facilitate latch hook.Main shaft 2 is provided with the fix shaft 4 that restriction ring set 3 moves down, and is connected with chain 5 on ring set 3, is connected with latch hook 6 and latch hook 7 on chain 5.Latch hook 6 are connected with latch hook with chain 5 on to be connected the distance of an end of ring set 3 unequal.

Fix shaft 4 has two, is in respectively the both sides of main shaft 2, and fix shaft 4 all is threaded connection with main shaft 2.Be fixed with elastic strip body 9 on main shaft 2, elastic strip body 9 gears are in the import and export of coupler body 8.

Using method: pull-up elastic strip body 9, suspender is hung on coupler body 8, then put down elastic strip body 9, an end that does not connect ring set 3 on chain 5 is passed from the lifting hole(eyelet) of suspender, select the latch hook of an energy tighten suspender to be locked on ring set 3.Chain 5 is tied up suspender on the position that coupler body 8 hooks are held, generally can slippage, and namely the slippage chain also can hang suspender.

Claims (6)

1. dropping-proof hook, comprise hoist cable connector, main shaft and coupler body, main shaft connects hoist cable connector and coupler body, it is characterized in that: on described main shaft, cover has ring set, between ring set and main shaft, certain interval is arranged, main shaft is provided with the fix shaft that the restriction ring set moves down, and is connected with chain on ring set, is connected with at least one latch hook on chain.

2. dropping-proof hook according to claim 1, it is characterized in that: described latch hook has a plurality of, and the distance of an end that is connected ring set on each latch hook and chain is all unequal.

3. dropping-proof hook according to claim 2, it is characterized in that: described latch hook has two.

4. dropping-proof hook according to claim 1, it is characterized in that: described fix shaft and main shaft are threaded connection.

5. any one described dropping-proof hook according to claim 1-4, it is characterized in that: be fixed with elastic strip body on described main shaft, elastic strip body keeps off in the import and export of coupler body.

6. require 5 described dropping-proof hooks according to power, it is characterized in that: described fix shaft has two, is in respectively the both sides of main shaft.

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