Abstract: A foldable handle includes a base bar, a steering lever pivoted to the base bar, and a movable retaining element. The steering lever has two states relative to the base bar, including a folding state where the steering lever is substantially perpendicular to the base bar and an unfolding state where the steering lever is substantially in the same line with the base bar. The steering lever is configured in a way that in the unfolding state a first side of the steering lever is blocked by a side plate protruded from an end of the base bar to restrict the steering lever to rotate forward. The retaining element is configured to move to be abutted against a second side of the steering lever opposite to the first side blocked by the side plate to restrict the steering lever to rotate backward in the unfolding state of the steering lever.

Abstract: A press lock includes a lock plate, and a locking member including a lower mounting plate, a pressing cap, and a lock lever. An elastic retention member configured to maintain the lock lever in a balanced position and a guide block with a guide groove are further included, where an end of a hook connected to the pressing cap is received in the guide groove. When the end of the hook is located at a lower locking position of the guide groove, the pressing cap acts on the elastic retention member to allow the lock lever to move downwards to fit with the lock plate, and when the end of the hook is located at an upper locking position of the guide groove, the lower mounting plate acts on the elastic retention member to allow the lock lever to move upwards and disengage from the lock plate.

Abstract: A press lock includes a lock plate, and a locking member including a lower mounting plate, a pressing cap, and a lock lever. An elastic retention member configured to maintain the lock lever in a balanced position and a guide block with a guide groove are further included, where an end of a hook connected to the pressing cap is received in the guide groove. When the end of the hook is located at a lower locking position of the guide groove, the pressing cap acts on the elastic retention member to allow the lock lever to move downwards to fit with the lock plate, and when the end of the hook is located at an upper locking position of the guide groove, the lower mounting plate acts on the elastic retention member to allow the lock lever to move upwards and disengage from the lock plate.

Abstract: A foldable handle includes a base bar, a steering lever pivoted to the base bar, and a movable retaining element. The steering lever has two states relative to the base bar, including a folding state where the steering lever is substantially perpendicular to the base bar and an unfolding state where the steering lever is substantially in the same line with the base bar. The steering lever is configured in a way that in the unfolding state a first side of the steering lever is blocked by a side plate protruded from an end of the base bar to restrict the steering lever to rotate forward. The retaining element is configured to move to be abutted against a second side of the steering lever opposite to the first side blocked by the side plate to restrict the steering lever to rotate backward in the unfolding state of the steering lever.