Frame height adjustment mechanism and frame provided therewith

摘要

A frame height adjustment mechanism (100) adapted for a frame (1), said frame (1) comprising: - an inner tube (41) and an outer tube (42) enclosing said inner tube (41); - a fixing aperture ( 420) formed on the outer tube (42), - a plurality of positioning holes (410) formed on the inner tube (41) along a vertical direction, - and the frame height adjusting mechanism (100) comprising: - a driving member (12) slidably disposed on the outer tube (42), the drive member (12) having at least a first inclined surface (124a); and at least one engagement member (10) slidably disposed on the drive member (12) and passing through the fixing aperture (420) to be inserted into one of the plurality of positioning apertures (410), the at least one first inclined surface (10). 124a) pushes the at least one engagement member (10) to disengage from the corresponding positioning aperture (410) as the drive member (12) slides upward, characterized in that the frame (1) further comprises a horizontal tube (3) The outer tube (42) is fixed to a lower end of the horizontal tube (3), - the fixing hole (420) is formed on a front side of a lower end of the outer tube (42), - the plurality of positioning holes (410) are on one Side of the inner tube (41), adjacent to the fixing opening (420) is formed, - the at least one engaging element (10) and the at least one first inclined surface (124 a) at a lower An upper end of the drive member (12) passes upward through the horizontal pipe (3) and is movable along the vertical direction with respect to the horizontal pipe (3), - the frame height adjusting mechanism (100) ) further comprises a connecting element (11) mounted on the ...