| 摘要 |
A full automatic opening and closing straight bone umbrella comprises a middle bar group (1), an umbrella frame (2), umbrella cloth (3) fixed on the umbrella frame (2), an upper nest (4), a middle nest (5) and an umbrella handle (8). The full automatic opening and closing straight bone umbrella further comprises an opening and closing umbrella drive mechanism (7) arranged in the middle bar, and a power source arranged in the umbrella handle (8). The umbrella frame (2) matches with the upper nest (4) and the middle nest (5). The opening and closing umbrella drive mechanism (7) comprises a lead screw (71) and an ejector sleeve (72) driven by the lead screw (71) to move up and down, and the lower end of the lead screw (71) is connected to the power source in the umbrella handle (8). The middle bar group (1) comprises a middle pipe (12) and a movable external pipe (11), wherein two ends of the middle pipe (12) are respectively connected to the umbrella handle (8) and the upper nest (4), and the movable external pipe (11) is sleeved outside the middle pipe (12). The ejector sleeve (72) penetrates through the middle pipe (12) and is connected with the external pipe (11), and a movable groove (121) used for the vertical movement of the ejector sleeve (72) is formed in the side wall of the middle pipe (12). A position limiting structure (111) used for driving the middle nest (5) to move upwards is arranged on the upper portion of the external pipe (11). A control button (81) used for starting the power source to rotate forwards and backwards is arranged on the umbrella handle (8). The power source is started to drive the lead screw (71) to rotate forwards and backwards, which enables the ejector sleeve (72) to drive the external pipe (11) to move up and down relative to the middle pipe (12), and therefore the middle nest (5) can be pushed to achieve automatic opening and closing of the umbrella. |
