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.
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[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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