Secondary locking mechanism and retractable frame
A secondary locking and locking mechanism technology, which is applied to motor vehicles, trolleys, mechanical equipment, etc., can solve the problems of unstable locking and accidental folding of the frame, and achieve the effect of convenient operation
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[0040] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0041] refer to Figure 1 to Figure 2b , the present invention discloses a collapsible vehicle frame 100, the collapsible vehicle frame 100 includes symmetrically arranged on both sides of the vehicle frame ( figure 1 The front foot 11, the rear foot 12, the handle 13, the first locking mechanism 21 and the second locking mechanism 14 are shown in one side of the vehicle frame), one end of the front foot 11 is fixed with a first rotating member 111, and the rear foot 12 One end is fixed with a second rotating member 121, and one end of the handle 13 is fixed with a third rotating member 131. The first rotating member 111 and the second rotating member 121 are pivotally connected by a first rotating shaft 112. The first rotating member 111...
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