TELESCOPIC UMBRELLA STRUCTURE

• US 20150223578A1
• Filed: 01/13/2015
• Published: 08/13/2015
• Est. Priority Date: 01/13/2014
• Status: Active Grant

• Current Assignee: Oliver Joen-An Ma
• Original Assignee: Oliver Joen-An Ma
• Inventors: Ma, Oliver Joen-an
• Granted Patent: US 9,504,299 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A45B 19/06 with telescopic ribs
• CPC Class Codes: A45B 25/02 Umbrella frames

Abstract

This utility model involves a telescopic tube structure of an umbrella rib, comprising an outer tube and an inner tube of the long rib, and the left end of the inner tube of the long rib is flexibly seated inside the outer tube of the long rib, the inner tube of the long rib is connected to a locking pin, the outer tube of the long rib is equipped with corresponding grooves, and the inner tube of the long rib is fixed to the outer tube of the long rib when the locking pin is inserted into the groove; when the locking pin detaches from the groove, the inner tube of the long rib will move axially back and forth with respect to the outer tube of the long rib. The inner tube of the long rib is further provided with wedges, and the beveled side of the wedge matches the beveled side of the locking pin. The structure of a telescopic tube structure of an umbrella rib is adopted, which is structurally simple. The wedge with the beveled side pushes the locking pin that also has a beveled side, allowing the locking pin to detach or insert into the groove. It is very convenient to use, wherein the inner tube of the long rib remains flexibly connected when the movable block is pushed to the left, and the release of the movable block allows the inner tube and outer tube of the long rib to remain securely fixed to one another and reliably locked. The number of grooves and the distance between grooves can be adjusted to suit different needs.

Claims

1. Telescopic tube structure of an umbrella rib, wherein, comprises an outer tube and an inner tube of the long rib. The left end of the said inner tube of the long rib is flexibly seated inside the said outer tube of the long rib, the said inner tube of the long rib is connected to a locking pin, the said outer tube of the long rib is equipped with corresponding grooves, and the said inner tube of the long rib is fixed to the said outer tube of the long rib when the said locking pin is inserted into the said groove;

when the said locking pin detaches from the said groove, the said inner tube of the long rib will move axially back and forth with respect to the said outer tube of the long rib.

2. The telescopic tube structure of an umbrella rib as claimed in claim 1, wherein the said inner tube of the long rib is further provided with wedges, which have a beveled side. The said locking pin is equipped with a matching beveled side. The beveled side of the said wedge matches the beveled side of the said locking pin. The axial movement of the said wedge with respect to the said inner tube of the long rib will drive the said locking pin to move back and forth along the diameter.

3. The telescopic tube structure of an umbrella rib as claimed in claim 2, wherein the inner wall of the said inner tube of the long rib is fixed with the first spring. One end of the said locking pin faces the said groove, while the other end of the said locking pin closely abuts the said first spring.

4. The telescopic tube structure of an umbrella rib as claimed in claim 3, wherein the inner wall of the said inner tube of the long rib is also fixed with a fastening block. The said locking pin gets flexibly connected to the said fastening block when it moves along the diameter. The said locking pin is fixed at its position by the said fastening block when it moves axially.

5. The telescopic tube structure of an umbrella rib as claimed in claim 2, wherein the inner wall of the said inner tube of the long rib is provided with a movable push rod. The left end of the movable push rod is connected and fixed to the said wedge.

6. The telescopic tube structure of an umbrella rib as claimed in claim 5, wherein the right end of the said inner tube of the long rib is provided with a movable block. The right end of the said movable push rod is connected and fixed to the movable block. The said movable block extends into the said inner tube of the long rib.

7. The telescopic tube structure of an umbrella rib as claimed in claim 4, wherein the second spring is located between the said fastening block and the said wedge. The two ends of the said second spring closely abut the said fastening block and the said wedge respectively.

8. The telescopic tube structure of an umbrella rib as claimed in claim 1, wherein there should be at least two of the said grooves and the said grooves must be distributed axially along the inner surface of the said outer tube of the long rib.

9. The telescopic tube structure of an umbrella rib as claimed in claim 2, wherein the right end of the said outer tube of the long rib is fixed with a retractable block. The movement of the said wedge is limited by the retractable block when it moves axially to the right.