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Chain block achieving rapid length adjustment

A technology for adjusting the length and inverting the chain, which is applied to portable lifting devices, hoisting devices, etc., can solve the problems of long time, cumbersome process, low efficiency, etc., and achieve the effects of convenient use, simple structure and reasonable design.

Pending Publication Date: 2018-04-06
马志明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When people use an inverted chain to lift heavy objects, in most cases the length of the inverted chain cannot meet the requirements, and it is necessary to pull the bracelet to adjust. This process is cumbersome, time-consuming, and inefficient.

Method used

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  • Chain block achieving rapid length adjustment
  • Chain block achieving rapid length adjustment
  • Chain block achieving rapid length adjustment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] like figure 2 As shown, the prior art inverted chain hoisting chains 4, 5 are located between the load pin 6 and the idle pin 7, and the hoisting sprocket 2 divides it into the left lifting part 4 and the right reserve part 5.

[0019] The length of the hoisting part 4 of the lifting chain determines the total length of the hoisting chain. The hoisting chain rotates the hoisting sprocket 2 through a series of transmissions (the hoisting chain body transmission mechanism) to change the length of the hoisting part 4 of the hoisting chain. Through the total length of the hoisting chain The length is changed to lift heavy objects. In the prior art, before hoisting, if the length of the hoisting part of the hoisting chain does not meet the working requirements, the length of the hoisting part of the hoisting chain must be changed by pulling the bracelet to drive the hoisting sprocket to rotate. This process is cumbersome, time-consuming, and inefficient.

[0020] like Fi...

Embodiment 2

[0031] like Image 6 As shown, the chain adjustment locking mechanism, for a straight plate, has a chute on the straight plate, the width of the chute is slightly larger than the chain diameter of the chain lifting chain, and the depth of the groove is greater than the outer width of the chain lifting chain.

[0032] Before lifting, just hook the middle section of the lifting chain to the hook plate as needed.

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Abstract

The invention provides a chain block achieving rapid length adjustment. The chain block achieving rapid length adjustment comprises a chain block body, a chain adjusting locking mechanism, a hosting chain, a hoisting pulley connected with the hoisting chain and a hoisting hook mechanism connected with the hoisting pulley. The chain adjusting locking mechanism comprises a crisscross plate and a sliding ring. The crisscross plate is provided with two groove holes which are crisscross. The fixing plate is provided with upper stop pins and lower stop pins. The sliding ring is arranged on the crisscross plate in a sleeving manner. The chain adjusting locking mechanism is installed in the middle of the lower side of the chain block body. The hoisting chain penetrates through the crisscross groove holes in the crisscross plate. One end of the hoisting chain is wound around the hoisting pulley, and the other end of the hoisting chain is wound around a hoisting chain wheel of the chain block body. The two ends of the hoisting chain are fixedly connected to form a closed structure. The chain block achieving rapid length adjustment is reasonable in design, simple in structure, safe, reliableand convenient to use, when hoisting heavy objects, the chain block achieving rapid length adjustment can be normally used like a traditional chain block, when the chain block achieving rapid length adjustment is in the no-load state, the length can be rapidly adjusted without the need for pulling a hand chain for a long time.

Description

technical field [0001] The invention belongs to the field of hoisting equipment, and in particular relates to an inverted chain capable of quickly adjusting the length. Background technique [0002] The inverted chain is also called a hoist. It is a lifting machine that is easy to use and easy to carry. It is suitable for short-distance lifting of equipment and goods. It is safe and reliable, easy to maintain, high in efficiency, light in weight, easy to carry, and durable. It is suitable for installing machines and lifting goods in factories, mines, construction sites, docks, warehouses, etc., especially for open-air and no-power operations, it shows its superiority. [0003] When people use an inverted chain to lift heavy objects, the length of the inverted chain cannot meet the requirements in most cases, and the bracelet needs to be pulled to adjust. This process is cumbersome, time-consuming, and inefficient. Contents of the invention [0004] The technical problem t...

Claims

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Application Information

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IPC IPC(8): B66D3/16
CPCB66D3/16
Inventor 马志明
Owner 马志明
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