2results about How to "Guaranteed sturdiness" patented technology

The utility model discloses a kind of high-strength framework structures of solid wood composite door, including door body, upper frame and lower frame are separately provided on door body, outer frame and inner frame are separately provided on the both sides of door body, rectangular tubular crosspiece is equipped in the middle of outer frame and inner frame, fixed block is equipped in the middle of crosspiece, threaded hole is vertically equipped in the middle of fixed block, main support rod is equipped in threaded hole, a plurality of I wheels are equipped on the main support rod of crosspiece up and down, vice support rod connection inner frame and outer frame are equipped on the both sides of I wheel.The utility model has the beneficial effects that: the high-strength framework structure of solid wood composite door of the utility model utilizes the design of advanced metal and wood combination, guarantees the appearance and firmness of door body, provides excellent compression resistance, corrosion resistance and deformation resistance performance;The utility model improves the strength and stability of door body in compression resistance, bending resistance, tensile resistance and other aspects by optimizing internal support frame, reasonably distributing stress, selecting high-strength material and strengthening connecting part.

A wristband with segments made of a rigid material. The present invention relates to a wristband (1) comprising: a first row (8) having at least one central segment (2); a second row (9) and a third row (10) respectively disposed on both sides of the first row (8) and each including at least one side segment (3); a connecting rod (4) positioned in three aligned holes in the first, second and third rows, the wristband (1) being characterized in that the connecting rod (4) includes a shoulder (5), and wherein each hole (2a) of the central segment (2) leads at one of its ends to a cutout (6) formed in the central segment (2), the cutout (6) being defined by a first wall (6b) and a second wall (6c), the first wall (6b) and the second wall (6c) serving as a first limiter and a second limiter for the shoulder (5) when the central segment (2) pivots about the connecting rod (4), thereby limiting the range of rotation of the central segment (2) about the connecting rod (4).