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Retractable extension stand and method of operation thereof

A worm and interface module technology, applied in the field of expansion brackets, can solve the problems of inconvenient and troublesome height adjustment, and achieve the effects of easy lifting, convenient operation and adjustable height.

Active Publication Date: 2018-08-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this is more troublesome when using it, especially it is extremely inconvenient to adjust the height without tools

Method used

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  • Retractable extension stand and method of operation thereof
  • Retractable extension stand and method of operation thereof
  • Retractable extension stand and method of operation thereof

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0038] Such as Figure 1 to Figure 4 As shown, the present invention discloses a telescopic extension bracket, which includes an interface module, a lifting module and a base;

[0039] The interface module is used for fixed connection with the feet of the tables and chairs that need to be expanded;

[0040] The lifting module includes a housing, a worm, a gear set and a knob;

[0041] The worm and the gear set are arranged in the casing, the knob is arranged on the casing, and the casing is provided with a through hole for the worm to move up and down;

[0042] The gear set includes a driving wheel, a transmission module and a driven wheel, the transmission module includes at least one transmission wheel, the driving wheel is meshed with the driven wheel through the transmission module, and the driven wheel is meshed with the worm;

[0043] The ...

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Abstract

The invention discloses a telescopic expanding support and a work method thereof. The expanding support comprises an interface module, a lifting module and a base. The interface module is used for being fixedly connected with a leg of a table or chair needing to be expanded. The lifting module comprises a shell, a worm, a gear set and a knob. The worm and the gear set are arranged in the shell. The knob is arranged on the shell. A through hole for the worm to vertically move is formed in the shell. The gear set comprises a drive wheel, a transmission module and a driven wheel. The drive wheel is engaged with the driven wheel through the transmission module, and the driven wheel is engaged with the worm. The knob is fixedly connected with the drive wheel and used for driving the drive wheel to rotate, and therefore the worm is controlled to vertically move. The top end of the worm is fixedly connected with the interface module. The base is detachably connected with the lower end of the shell in the lifting module. The telescopic expanding support is convenient to operate, the height of the table or chair can be adjusted, and different kinds of bases can be replaced according to personal preferences and needs.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a telescopic extension bracket and a working method thereof. Background technique [0002] In daily life, it is often found that the ratio of desks and chairs is inappropriate. If people use such desks and chairs for office work for a long time, it will inevitably lead to some cervical spondylosis and lumbar spondylosis. In addition, due to uneven ground or quality problems of tables and chairs, often the feet of tables and chairs cannot be completely attached to the ground, affecting comfort. [0003] It can be adjusted by setting extension brackets on the feet of tables and chairs. The traditional method mainly realizes height adjustment by adjusting the drilling heights of the two parts inside and outside the extension brackets, and uses screws to realize fixation. But it is cumbersome to use like this, especially it is extremely inconvenient to adjust the height without tools. Conte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16M11/04F16M11/24A47B95/00A47B91/02
CPCA47B91/02A47B95/00F16M11/04F16M11/24
Inventor 葛林林李昱辉赵坦然牛康陈林
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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