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Multi-level freely telescopic rod

A telescopic rod, free technology, applied in the direction of rod connection, connecting components, mechanical equipment, etc., can solve the problem that the telescopic rod cannot meet the market demand, and achieve the effect of simple structure, fast locking and long service life

Inactive Publication Date: 2015-03-25
何文波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Through the above description, the existing telescopic poles can no longer meet the needs of the market

Method used

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Embodiment Construction

[0041] In order to express the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings.

[0042] The multi-stage free telescopic rod provided by the present invention includes n-stage outer tubes, n-stage positioning shrapnels, n-stage positioning parts and n-stage rotating internal pressure parts, wherein n is a natural number; On the top of the locating parts at all levels, the outer tube of the rear stage is movably socketed in the outer tube of the previous stage, and the inner walls of the outer tubes of each level are evenly provided with a plurality of sawtooth levels, and there are gaps on the locating parts of each level. One end of the positioning shrapnel is fixed in the positioning parts of each level one by one, and the other end of the positioning shrapnel of each level penetrates the gaps on the positioning parts of each level and then engages with the sawtooth phases of the outer tubes o...

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Abstract

A multi-level free telescopic rod comprises n levels of outer pipes (11, 12, 13), n levels of positioning elastic pieces (16, 17), n levels of positioning pieces (18, 19) and n levels of rotating inner pressing pieces (20, 21), wherein n is a natural number. The telescopic rod further comprises (n+1) levels of inner pipes (22, 23, 24), (n+1) levels of outer pipes, an external rotating piece (25) and a spring (26). The inner wall of each level of outer pipe is evenly provided with a plurality of sawtooth-level positions (111, 121, 131). Each level of the positioning piece is provided with notches. One end of each level of the positioning elastic piece is correspondingly fixed in each level of the positioning piece. The other end of each positioning elastic piece penetrates through the notches on each level of the positioning piece and is then clamped with the sawtooth level positions of each outer pipe. The telescopic rod can freely stretch, clamp, and auto-return.

Description

technical field [0001] The invention relates to a telescopic rod, in particular to a multi-stage free telescopic rod. Background technique [0002] At present, the telescopic principle is used on the photography stand or the guide rod for the blind. The user stretches it to a certain length when it needs to be used, and recycles it when it is not used. It can effectively achieve the effects of small size, flexible use, and convenient portability. Therefore, during the use of the telescopic rod for photography or the telescopic rod for the blind, it often performs stretching or recycling actions, and the locking methods of these two actions mainly include the following types: [0003] One is to lock with a locking piece or need to be pulled to a fixed position to lock. If the existing telescopic rod uses the pin hole and the adaptation of the pin rod installed on the shrapnel to achieve stretching or recovery , when in use, it is necessary to press the pin rod hard so that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B7/10
CPCF16B2007/16F16B7/105F16B7/16
Inventor 何文波
Owner 何文波
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