Automatic telescopic umbrella capable of being stably opened and closed

Abstract

The invention discloses an automatic telescopic umbrella capable of being stably opened and closed. The automatic telescopic umbrella comprises an umbrella handle and an opening and closing device, wherein the opening and closing device comprises a flexible steel bar, a telescopic connecting piece and a steel bar driving device, the steel bar driving device is arranged at the lower end of the umbrella handle, one end of the flexible steel bar is connected with the upper end of the umbrella handle, and the other end of the flexible steel bar is connected with the steel bar driving device; the upper end of the telescopic connecting piece is connected with the upper end of the umbrella handle, the lower end of the telescopic connecting piece is connected with the lower end of the umbrella handle, the telescopic connecting piece is provided with a fixing hole for the flexible steel bar to penetrate through, the telescopic connecting piece comprises connecting single bodies, every two adjacent connecting single bodies are connected through an elastic rope, and a steel bar driving device comprises a motor and a driving wheel; a power output end of the motor is connected with the transmission wheel, spiral driving teeth are arranged on the outer circumferential face of the transmission wheel, and inclined strip-shaped holes matched with the spiral driving teeth are formed in the sideface of the flexible steel bar.

Description

technical field [0001] The invention relates to the technical field of umbrellas, in particular to an automatic retractable umbrella with stable opening and closing. Background technique [0002] An umbrella is a tool for shading or sheltering from rain and snow. Umbrellas need both hands to operate when opening and closing, which is very inconvenient to use. Therefore, people have developed an umbrella that can be opened and closed automatically. The existing automatic retractable umbrella mainly drives the umbrella handle to automatically expand and contract through a screw structure or a flexible rack. Stuck, making the umbrella handle lifting very unstable. For umbrellas that open and close through flexible racks, since the flexible racks are relatively soft, the flexible racks are easy to bend when the umbrella handle is extended, causing the flexible racks to lose their supporting force instantly, which easily leads to damage to the flexible racks, and the flexible ...

AI Technical Summary

Problems solved by technology

Umbrellas need to be operated with both hands when opening and closing, which is very inconvenient to use

Therefore, people have developed an umbrella that can be opened and closed automatically. The existing automatic retractable umbrella mainly drives the umbrella handle to automatically expand and contract through a screw structure or a flexible rack. Stuck, making the umbrella handle very unstable

For umbrellas that open and close through flexible racks, since the flexible racks are relatively soft, the flexible racks are easy to bend when the umbrella handle is extended, causing the flexible racks to lose their supporting force instantly, which easily leads to damage to the flexible racks, and the flexible The transmission part of the rack and the gear is only connected by one or two meshing teeth that are not completely meshed, so that the structure of the transmission part is not strong enough, and the transmission force is small, so the umbrella cannot be opened automatically

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