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Manual mechanical expansion shaft

A manual machine and shaft expansion technology, applied in the field of air expansion shafts, can solve problems such as easy occurrence of problems, unstable air expansion shafts, unusable air expansion shafts, etc., and achieve the effects of reasonable design, simplified adjustment, and simple structure

Active Publication Date: 2020-03-20
江苏擎邦机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional air shaft expands the different convex keys through the air bag installed in the hollow inside the shaft, but this type of air shaft is unstable and prone to problems; when the air bag leaks, it will cause the entire The air shaft cannot be used, which leads to production failure. Therefore, the mechanical shaft has emerged as the times require. However, most of the existing mechanical shafts are pneumatic, and the sealing performance of the pneumatic area is similar to that of an air bag, and the sealing performance is prone to decline. , therefore, it is necessary to propose a manual mechanical expansion shaft

Method used

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Embodiment Construction

[0017] Referring to the accompanying drawings, a manual mechanical expansion shaft of the present invention includes a hollow shaft body 1, a shaft sleeve 2, a rotating shaft 3, a sealing cover plate 4, a top plate 5 and a return spring 6, and the outer side of the hollow shaft body 1 is sleeved There is a shaft sleeve 2, the inside of the hollow shaft body 1 is provided with a rotating shaft 3, the left and right sides of the hollow shaft body 1 and the shaft sleeve 2 are provided with a sealing cover plate 4, and the center of the sealing cover plate 4 is provided with Through hole 41, the left and right ends of the rotating shaft 3 are located in the through hole 41, the rotating shaft 3 can rotate along the through hole 41, the right end of the rotating shaft 3 is provided with a return spring 6, the hollow shaft The side wall of 1 is provided with a plurality of opening grooves 11, and the inside of the opening grooves 11 is provided with a top plate 5, and the upper surfa...

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Abstract

The invention discloses a manual mechanical expansion shaft. The manual mechanical expansion shaft comprises a hollow shaft body, a shaft sleeve, a rotating shaft, a sealing cover plate, a top plate and a reset spring. Compared with the prior art, by using the shaft of the invention, the structure is simple, the design is reasonable, external pneumatic facilities are not needed, a diameter of theexpansion shaft can be changed manually through workers, the diameter of the expansion shaft can be adjusted according to actual needs, and the expansion shaft is worth popularizing.

Description

【Technical field】 [0001] The invention relates to the technical field of air expansion shafts, in particular to a manual mechanical expansion shaft. 【Background technique】 [0002] The inflatable shaft is a special winding and unwinding shaft, the surface part expands after high-pressure inflation, and the surface part retracts rapidly after deflation. The air shaft is very convenient and quick to use. The user only needs to prepare the air source, and the air pressure is controlled within the range of 6-8kg. When the reel core needs to be locked, just inflate the air gun to the air nozzle on the air shaft , When it is necessary to loosen the reel core and unload, press the sliding air core on the air nozzle with your hand to deflate. [0003] The traditional air shaft expands the different convex keys through the air bag installed in the hollow inside the shaft, but this type of air shaft is unstable and prone to problems; when the air bag leaks, it will cause the entire ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H75/24
CPCB65H75/246B65H2701/50
Inventor 柴丽杰
Owner 江苏擎邦机械有限公司