The utility model relates to a kind of anti-
cracking type door inner plate
handrail skeleton reinforcement structure and vehicle door
assembly, wherein, anti-
cracking type door inner plate
handrail skeleton reinforcement structure includes
handrail skeleton, and reinforcing rib and multiple through holes are provided in handrail skeleton side, multiple
welding positioning columns are equipped on handrail skeleton,
welding positioning column is distributed in the periphery of handrail skeleton, for being welded with door inner plate and fixed.
Handrail skeleton is connected with door inner sheet
metal by at least two fixed points, and fixed point uses screw connection, and screw installation direction is towards vehicle, and the position of fixed point is located in the
stress concentration area of handrail skeleton. Vehicle door
assembly includes door inner plate and door inner sheet
metal, further include the anti-
cracking type door inner plate handrail skeleton reinforcement structure of the utility model. The utility model uses grid type reinforcing rib in the periphery of handrail skeleton, and increase two screws and vehicle body connection, effectively improve the overall stiffness and
load capacity of handrail skeleton, so as to be able to collapse in time to protect the rib safety of in-vehicle occupant when side collision.