Angle regulating device and chair with same

Abstract

The invention discloses an angle regulating device, which comprises a ratchet wheel, slide blocks, an expansion and contraction mechanism and a slide groove plate, wherein the inner ring of the ratchet wheel is provided with inner teeth; each slide block is provided with outer teeth; the slide groove plate is in coaxial arrangement with the ratchet wheel and can relatively rotate; the expansion and contraction mechanism is used for controlling the slide blocks to move in the radial direction of the slide groove plate; the expansion and contraction mechanism can simultaneously push each slide block to extend out in the radial direction, so that the outer teeth and the inner teeth are in butted joint or clamped connection; all slide blocks are locked; m slide block groups are formed by the slide blocks, and m is 5 or 6; the m slide block groups comprise one basic slide block group and m-1 offset slide block groups; the outer teeth of the deviation slide block groups have the angle offset around a center shaft of the ratchet wheel relative to the outer teeth of the basic slide block group; the angle deviation quantity is (Z+k / m) 360 / n degrees. The device can realize the safe and stable stepless regulation of the angle. The invention also discloses a chair with the angle regulating device; the regulating process is safe and reliable.

Description

technical field [0001] The present invention relates to the technical field of mechanical design, and more specifically, relates to an angle adjusting device. In addition, the present invention also relates to a seat comprising the above-mentioned angle adjusting device. Background technique [0002] During the use of the seat, in order to meet the needs of different users, the angle of the backrest and the seat seat can be adjusted. With the development of the machinery industry, higher requirements are put forward for the accuracy of the seat angle adjustment device. [0003] In the prior art, the seat angle adjustment device includes multiple sets of sliders with phase differences. During use, a set of sliders is selected to mesh with the ratchet to achieve the purpose of improving the adjustment accuracy, but the adjustment accuracy is different from that of the set sliders. The number is directly related, and the accuracy improvement is achieved by increasing the numbe...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the seat angle adjustment device includes multiple sets of sliders with phase differences. During use, a set of sliders is selected to mesh with the ratchet to achieve the purpose of improving the adjustment accuracy, but the adjustment accuracy is different from that of the set sliders. The number is directly related, and the accuracy improvement is achieved by increasing the number of sliders, which not only consumes the cost of the device, but also increases the weight of the recliner, and the adjustment accuracy is very limited, and the stepless adjustment of the angle cannot be realized.

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