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Screw rotating-pushing multiplication device

A screw and pull screw technology, which is applied to stools, other seating furniture, household appliances, etc., can solve the problems of long length and slow positioning speed

Pending Publication Date: 2021-05-18
座为(重庆)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Among them, when linearly propelling each functional part, if one-stage propulsion is directly adopted, the length of the functional part with a longer in-position stroke will be longer, and the in-position speed will be slower

Method used

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  • Screw rotating-pushing multiplication device
  • Screw rotating-pushing multiplication device
  • Screw rotating-pushing multiplication device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as Figure 1-8 As shown: a screw screw multiplication device, including a push-pull screw 22 and a base, on which a turn-in nut 24 is fixed, and the turn-in nut 24 is threaded on the push-pull screw 22;

[0025] A screw rotation mechanism is provided on the base, and the screw rotation mechanism drives the push-pull screw 22 to rotate;

[0026] A multiplication target 27 is slidably mounted on the base, and the sliding direction of the multiplication target 27 is consistent with the length direction of the push-pull screw 22 , and the push-pull screw 22 is threaded in the multiplication target 27 .

[0027] The screw rotating mechanism includes a screw driving base 21, which is fixed on the base, and a screw rotating base 23 is mounted on the screw driving base 21, and a screw rotating base 23 runs through the screw rotating base 23. The screw is perforated, the push-pull screw 22 is set in the screw perforation, the push-pull screw 22 is axially slidably matched ...

Embodiment 2

[0033] Such as Figure 1-8 As shown: a screw screw multiplication device in Example 1 is applied to the leg rest to obtain a one-step unfolded leg rest, including a seat cushion 1, and the front part of the seat cushion 1 is provided with a leg rest body 3. The seat cushion 1 is installed with a leg rest linear drawing assembly, and the leg rest linear drawing assembly includes a drawing fixing part and a drawing sliding part which are slidably assembled along the front and rear direction of the seat cushion 1, wherein the drawing fixing part The part is arranged on the seat cushion 1, the front part of the pulling sliding part is hinged with the leg rest body 3, and the pulling sliding part drives the leg rest body 3 to advance and retreat along the pulling fixed part; A secondary propelling mechanism is provided on the pulling sliding part, the secondary propelling mechanism is connected with the leg rest body 3 , and the secondary propelling mechanism pushes the leg rest bo...

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PUM

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Abstract

The invention discloses a screw rotating-pushing multiplication device which comprises a push-pull screw and a base; a screwing-in nut is fixed to the base, and the push-pull screw is sleeved with the screwing-in nut in a threaded mode; a screw rotating mechanism is arranged on the base, and the screw rotating mechanism drives the push-pull screw to rotate; a multiplication target is assembled on the base in a sliding mode, the sliding direction of the multiplication target is consistent with the length direction of the push-pull screw, and the push-pull screw is arranged in the multiplication target in a threaded and penetrating mode. The screw rotating-pushing multiplication device has the beneficial effects that the screw rotating mechanism drives the push-pull screw to rotate, the push-pull screw is in threaded fit with the fixed screwing-in nut so as to advance or retreat relative to the base, and when the push-pull screw advances, retreats and rotates, the multiplication target is in threaded fit with the push-pull screw so that the multiplication target further advances and retreats relative to the push-pull screw; therefore, the advance and retreat amount of the multiplication target relative to the base is larger than the advance and retreat amount of the push-pull screw relative to the base, and the stroke multiplication effect is achieved.

Description

technical field [0001] The invention relates to a functional structural part of a seat, in particular to a screw push mechanism with amplified stroke. Background technique [0002] Office chairs are important office tools. With the continuous increase of the office crowd's demand for the comfort of office chairs, office chairs are gradually developing in the direction of multi-function. At this stage, in addition to meeting the needs of personnel, multi-functional office seats also mainly need to meet the following requirements: [0003] 1. The seat back can be tilted, and the tilting angle can be adjusted and fixed to meet the different needs of the occupants, such as half-lying or full-lying; [0004] 2. The seat cushion can be turned over at a certain angle, so that the front part of the seat cushion is upward and the rear part is downward, so as to raise the knees of the occupants to varying degrees; [0005] 3. When the occupants are resting, there can be leg rests t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C7/50
CPCA47C7/5066
Inventor 石章能张明龙德学李波涛杨双华粟朝刚石强
Owner 座为(重庆)科技有限公司