Lever pulley block convenient to use

A hand hoist and convenient technology, applied in the directions of portable lifting devices, hoisting devices, etc., can solve the problems of slow lifting speed, constant use, and easy deformation of connecting parts.

Inactive Publication Date: 2014-03-19
王震
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The screws of the existing hand hoist are easy to loosen, the connecting parts are easy to deform, cause falling off, and cause safety hazards. The old product has a four-row chain, the lifting speed is slow, and the use remains unchanged.

Method used

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  • Lever pulley block convenient to use
  • Lever pulley block convenient to use

Examples

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Embodiment Construction

[0021] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0022] Such as Figure 1 to Figure 2 As shown, an easy-to-use hand block hoist includes a main body shell 1, a ratchet wrench device, a driven sprocket device, a card element plate assembly and a chain assembly arranged between the main body shell 1 and the driven sprocket device. The main housing 1 is provided with an anti-reversal gear transmission mechanism and a sprocket transmission mechanism. The chain assembly includes three rows of chains 2. The main housing 1 is also provided with a small sprocket mechanism. The driven sprocket device includes The large sprocket mechanism, the small sprocket mechanism includes the first casing 3 and the fixed pulley arranged in the first casing 3, the large sprocket mechanism includes the second casing 4 and the fixed pulley arranged in the second casing 4 The movable p...

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PUM

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Abstract

The invention discloses a lever pulley block convenient to use. The lever pulley block comprises a main body shell, a ratchet wrench device, a driven sprocket device, a glasal plate assembly and a chain assembly, wherein an anti-reversal gear transmission mechanism and a sprocket transmission mechanism are arranged in the main body shell; the chain assembly comprises three rows of chains; a small sprocket mechanism is arranged in the main body shell; the driven sprocket device comprises a big sprocket mechanism; the small sprocket mechanism comprises a first shell and a fixed pulley arranged in the first shell; the big sprocket mechanism comprises a second shell and a moveable pulley arranged in the second shell; a first chain hole and a second chain hole are formed in the bottom of the main body shell; one ends of the chains are arranged at the upper end of the second shell, and the other ends of the chains sequentially bypass the fixed pulley and the moveable pulley in a surrounding manner, pass through the first chain hole, surround the main shaft of the sprocket transmission mechanism and pass through the second chain hole. The invention has the advantages that the lever pulley block is simple and compact in structure, less susceptible to deformation, flexible and handy to use, convenient and safe, and is applicable to aloft operation.

Description

technical field [0001] The invention relates to the technical field of hand hoists, in particular to an easy-to-use hand hoist. Background technique [0002] Lever block is a manual lifting tool that is easy to use and easy to carry. It can carry out lifting, pulling, lowering, calibration and other operations. The lifting capacity generally does not exceed 50T. It is widely used in equipment installation, item lifting, and machine parts pulling in shipbuilding, electric power, transportation, construction, mining, post and telecommunications and other departments. [0003] The screws of the existing hand block hoist are easy to loosen, and the connecting parts are easy to deform, resulting in falling off and potential safety hazards. The old product has a four-row chain, the lifting speed is slow, and the use remains unchanged. Contents of the invention [0004] In view of the deficiencies in the prior art above, the object of the present invention is to provide an easy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D3/16
Inventor 王震
Owner 王震
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