Chassis structure of swivel chair

Abstract

The invention discloses a chassis structure of a swivel chair. The chassis structure comprises a bottom plate, a bottom shell mounted on the lower side of the bottom plate, a tail plate linked with abackrest, a tipping leisure structure capable of realizing a tipping leisure function, and a leisure angle locking structure capable of adjusting a leisure angle, the tipping leisure structure comprises a fulcrum shaft which is connected between the tail plate and the bottom shell and plays a fulcrum role, a rotating shaft which is connected between the tail plate and the bottom shell and can rotate around the fulcrum shaft, and a pressure spring which is arranged in the bottom shell and plays a return role on the rotating shaft; the leisure angle locking structure comprises a leisure lockinghandle arranged on the outer side of the bottom shell, gear locking teeth located in the base and provided with a plurality of gear holes, locking pins arranged in the leisure locking handle and capable of being inserted into the corresponding gear holes in a clamped mode, and gear pieces arranged on the supporting shaft and the rotating shaft in a sleeving mode. A first arc-shaped tooth edge is arranged on the gear locking teeth, a second arc-shaped tooth edge in meshed transmission with the first arc-shaped tooth edge is arranged on the gear piece, and the gear locking teeth and the gear piece are in meshed transmission to form a split type gear transmission structure.

Description

technical field [0001] The invention relates to the technical field of the swivel chair, in particular to the chassis structure of the swivel chair. Background technique [0002] In order to provide the comfort of the seat, people have invented swivel chairs that can be lifted, tilted and rotated. The swivel chair is mainly composed of chair feet, air pressure rods, cylinders, chassis structures, cushions, and backrests. structure, the design of the free angle locking structure of the existing chassis structure is cumbersome and complicated, and the structural design is unreasonable. Generally, it is a translational transmission structure composed of a transmission rod, a transmission plate, and a spring, and the transmission of the translational transmission structure is not enough. Stable and smooth, slow transmission speed, low adjustment efficiency of turning the Xiaoyao lock handle, average transmission stability, large design space required, large bottom shell thicknes...

AI Technical Summary

Problems solved by technology

[0002] In order to provide the comfort of the seat, people have invented swivel chairs that can be lifted, tilted and rotated. The swivel chair is mainly composed of chair feet, air pressure rods, cylinders, chassis structures, cushions, and backrests. structure, the design of the free angle locking structure of the existing chassis structure is cumbersome and complicated, and the structural design is unreasonable. Generally, it is a translational transmission structure composed of a transmission rod, a transmission plate, and a spring, and the transmission of the translational transmission structure is not enough. Stable and smooth, slow transmission speed, low adjustment efficiency of turning the Xiaoyao lock handle, average transmission stability, large design space required, large bottom shell thickness, difficult to carry out thin and light design, and many parts and many production processes, resulting in production High cost and uncompetitive products

Images