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Chain block

A hand-chain hoist and hand-pulling technology, which is applied to portable hoisting devices and hoisting devices, can solve problems such as unsmooth operation, heavy resistance of lifting chains and hand chains, etc., and achieves wide application range, good guidance, and The effect of increasing the service life

Active Publication Date: 2015-07-08
CHONGQING VITAL ELEVATORING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a chain hoist, which can ensure that the lifting chain and the hand chain have a smooth operation, aiming at the problem that the lifting chain and the chain chain in the prior art have relatively large resistance and unsmooth operation. The chain can run smoothly, the flexibility is good, and the service life of the chain is increased

Method used

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Embodiment Construction

[0034] refer to Figure 1-8 , a chain chain hoist of the present invention, comprising a major axis 200, a lifting body 500 and a hand chain wheel 610 sleeved on the major shaft 200, a hand chain 620 sleeved on the hand chain wheel 610, and a cover covering the hand chain wheel 610 The sprocket case 100 is connected with the lifting body 500 in a relative rotation manner; the sprocket case 100 is provided with a guide mechanism 700 for the hand chain 620 .

[0035] The connection method between the sprocket case 100 and the lifting main body 500 is specifically to adopt a ratchet case 400 covering the periphery of the ratchet assembly 311 between the sprocket case 100 and the lifting main body 500, and the ratchet case 400 and the lifting main body 500 is fixedly connected, the inner circumference of the ratchet case 400 at one end of the lifting body 500 is provided with a step portion 401, the outer circumference of the opening of the sprocket case 100 is provided with a fla...

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Abstract

The invention discloses a chain block. The chain block comprises a long shaft, a lifting body, a hand chain wheel, a hand pull chain arranged on the hand chain wheel in a sleeving mode and a chain wheel housing covering the hand chain wheel, wherein the lifting body and the hand chain wheel are arranged on the long shaft in a sleeving mode. The chain wheel housing is connected with the lifting body in a relatively rotating mode. The chain wheel housing is provided with a guide mechanism of the hand pull chain. The lifting body comprises a lifting chain wheel arranged on the long shaft in a sleeving mode and a pair of chain guide plates attached and fixed to each other and of a symmetrical structure. The lifting chain wheel is arranged between the chain guide plates. According to the chain block, a lifting chain is guided through the chain guide plate, the guide mechanism guides the hand pull chain, the chain is made to operate smoothly, the service life of the chain is prolonged, and jamming of the chain is prevented.

Description

technical field [0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a chain hoist. Background technique [0002] Chain hoist is a simple and portable manual lifting tool. Chain hoists mainly include two categories. One is traditional chain hoists. The shaft then drives the lifting assembly to rotate, thereby driving the goods up and down through the lifting chain to complete the lifting; the other type is the load-limiting chain hoist. It is safer. The load-limiting chain hoist manually pulls the hand chain to drive the hand chain wheel to rotate, thereby driving the load-limiting component to rotate. The load-limiting component drives the long shaft to rotate, and the long shaft drives the lifting component to rotate, thereby passing The lifting chain drives the goods up and down to complete the lifting. When the lifting weight is overloaded, the power transmission between the hand chain wheel and the long shaft is diseng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D3/12
CPCB66D3/12
Inventor 过奇荣符想念
Owner CHONGQING VITAL ELEVATORING EQUIP
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