| 摘要 |
The utility model discloses a contracting umbrella opening-closing structure. The contracting umbrella opening-closing structure comprises a first pipe, a second pipe, a runner, an ejecting piece, a spring and a button. The first pipe can stretch into a hole of the second pipe and can stretch out from the hole of the second pipe. The ejecting piece is installed on the second pipe. The runner is provided with a sliding groove where the button slides. The button is limited to move inside the sliding groove and comprises a pressing surface and a button base, wherein the pressing surface and the button base are respectively arranged on two sides of the second pipe. One end of the spring is abutted against an inner wall of a through hole of the runner, and the other end of the spring is abutted against the button base. The ejecting piece is used for ejecting the button. Because the ejecting piece is installed on the second pipe which is larger than the first pipe, strength of the first pipe and stability of the first pipe are improved. Because the ejecting piece and the button are clamped through the plane structure of the ejecting piece and the plane structure of the button, mutual abrasion between the ejecting piece and the button is reduced, and service life of the button can also be long when a plastic button is adopted. Because the size of the through hole of the runner and the shape of the through hole of the runner are absolutely matched with the size of the ejecting piece and the shape of the ejecting piece, the runner can hardly rock when being fixed on the ejecting piece, and accordingly an opened umbrella surface is more stable. |
