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Lever block for preventing castoff

A lever hoist, anti-dropping technology, applied in the direction of the spring mechanism, portable lifting device, hoisting device, etc., can solve the problems of reducing the service life of the chain and sprocket, prone to deviation, chain separation, etc., to avoid shaking And twist, strengthen stability and reliability, strengthen the effect of limit

Active Publication Date: 2019-09-20
江苏洋口港建设发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the lever hoist lifts heavy objects, the chain is easily detached from the sprocket, and it is easy to deviate, which aggravates the wear of the chain and the sprocket, reduces the service life of the chain and the sprocket, and increases the cost.

Method used

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  • Lever block for preventing castoff
  • Lever block for preventing castoff
  • Lever block for preventing castoff

Examples

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Embodiment Construction

[0030] Such as Figure 1-14 As shown in the figure, a lever hoist for anti-off chain includes a lever hoist housing 1, a chain 11, a wrench 12, a driving roller 13 for controlling the movement of the chain, and two fixed blocks respectively arranged on both sides of the driving roller 13. 14; The first anti-off block 21 and the second anti-off block 22 are provided between the two fixed blocks 14 for the anti-off position of the chain 11, and the first anti-off block 21 and the second anti-off block The blocks 22 are provided with accommodating grooves 211 for accommodating the chain 11 and fixing devices for fixing the first anti-off block 21 and the second anti-off block 22 between the two fixed blocks 14. Through the setting of the above structure, The chain can achieve the effect of blocking and limiting through the above-mentioned first anti-off block and the second anti-off block, avoiding the chain from shifting or detaching when lifting heavy objects, effectively reduc...

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Abstract

The invention discloses a lever block for preventing castoff. The lever block comprises a lever block casing, a chain, a spanner, a driving roller for controlling the movement of the chain and two fixed blocks which are respectively arranged on two sides of the driving roller, wherein a first castoff preventing block and a second castoff preventing block which are used for castoff prevention and limit of the chain are arranged between the two fixed blocks; the first castoff preventing block and the second castoff preventing block are respectively provided with accommodating tanks for accommodating the chain and fixing devices for fixing the first castoff preventing block and the second castoff preventing block between the two fixed blocks. By arranging the structure, the chain can realize the effects of stopping and limiting through the first castoff preventing block and the second castoff preventing block, and deviation or separation of the chain when a heavy object is hoisted is avoided, so that the wear of the chain is effectively reduced and the change cost of the chain is reduced.

Description

technical field [0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to an anti-off-chain lever hoist. Background technique [0002] The lever hoist is manually pulled by the wrench, and with the help of the principle of leverage, it can obtain a linear traction that matches the load, so as to drive the weight to move up and down. Due to the small size and light weight of the lever block, it is very convenient to carry and operate, and is suitable for heavy objects of small tonnage. [0003] Now the public document with the publication number CN105905822A discloses a lever hoist. This device prevents the heavy object from falling due to its own weight in the process of lifting the heavy object. The lifting reliability is good and the safety is good. Strong bearing capacity, the operating end of the wrench is a circular structure, and its size is smaller than the fixed end of the wrench. It is easy to hold and labor-saving to o...

Claims

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Application Information

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IPC IPC(8): B66D3/14B66D1/28
CPCB66D3/12
Inventor 王红华齐欢吴琪
Owner 江苏洋口港建设发展集团有限公司
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