EASILY EXTENDABLE AND RETRACTABLE CANOPY MECHANISM

Abstract

The present invention relates to the technical field of outdoor equipment, in particular to an easily extendable and retractable canopy mechanism comprising two center hubs arranged up and down and several carrier rods. The first and second center hubs are arranged on the same vertical line. One end of the carrier rods is rotatably connected to the first center hub with equal angle between any two adjacent carrier rods. It also comprises equal number of support rods and carrier rods. One end of the support rods is rotatably connected to the second center hub and the other end is fixed on the side of the carrier rods. The angle between any two adjacent support rods is equal. The carrier rods have stop blocks at the upper part of the fixed connection between the carrier rods and the support rods. The present invention improves the existing tent roofs and removes the self-locking structure commonly used in the prior art to achieve the current effect with more convenience and less effort based on simpler mechanism, which is applicable to tents and other outdoor equipment.

Claims

1. An easily extendable and retractable canopy mechanism, comprising: two center hubs arranged up and down; a plurality of carrier rods, wherein one of said center hubs is set up as a first center hub and another second center hub is arranged on a common vertical line; one end of each of said carrier rods being rotatably connected to said first center hub wherein an angle between any two adjacent carrier rods is equal; a plurality of support rods corresponding in equal quantity to each of said carrier rods wherein one end of each of said support rods is rotatably connected to said second center hub and an opposite end is attached to a side of said carrier rods wherein an angle between any two adjacent support rods is equal, said carrier rods being provided with stop blocks which are arranged at an upper position on each of said carrier rods between said carrier rods and said support rods wherein said stop block is made of plastics by an integral molding and exhibits a rectangular overall structure wherein two grooves are arranged on one side of said stop block, one of which is buckled and said carrier rod and the other of which is used for buckling said support rod.

2. An easily extendable and retractable canopy mechanism according to claim 1, wherein the number of carrier rods and support rods is greater than or equal to three.

3. An easily extendable and retractable canopy mechanism according to claim 2, wherein the number of carrier rods and support rods is four.

4. An easily extendable and retractable canopy mechanism according to claim 3, wherein the carrier rods are connected to the support rods with rivets.

5. (canceled)

6. An easily extendable and retractable canopy mechanism according to claim 1, further comprising a pull rod and a handle wherein one end of the pull rod is fixed at the center of the second center hub, and the other end is fixed to the handle.

7. An easily extendable and retractable canopy mechanism according to claim 6, wherein the central parts of both the first center hub and the second center hub are hollow with threads on the inner surface wherein said pull rod is provided with matching threads on the outer surface wherein the length of the pull rod is greater than the shortest distance between the first center hub and the second center hub.

Description

DESCRIPTION OF THE DRAWINGS

[0012] FIG. 1 is a structural schematic diagram of the tent skeleton of the present invention.

[0013] FIG. 2 is an enlarged structural diagram of Part A in FIG. 1.

[0014] FIG. 3 is a structural schematic diagram of the stop block of the present invention.

[0015] Description of the Reference Numerals: 1. The first center hub; 2. The second center hub; 3. Carrier rod; 4. Support rod; 5. Stop block; 6. Rivet; 7. Handle; 8. Pull rod; 9. Limit groove

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

[0016] For better understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and an embodiment. It should be understood that the embodiment described herein is only used to illustrate the present invention, but not to limit the protection scope of the present invention.

[0017] As shown in FIGS. 1 and 2, a pop-up tent support comprises at least three columns, a canopy frame supported on the columns, and a pop-up frame connected between two adjacent columns. In this embodiment, four columns are arranged and form a square when the tent support is extended. The canopy frame comprises two center hubs arranged up and down and four carrier rods (3). The center hubs are set up as the first center hub (1) and the second center hub (2). The centers of the first center hub (1) and the second center hub (2) lie on the same vertical line. One end of the carrier rods (3) is rotatably connected to the first center hub (1) and the angle between any two adjacent carrier rods (3) is equal. It also comprises four support rods (4). One end of the support rods (4) is rotatably connected to the second center hub (2) and the other end is fixed on the side of the carrier rods (3). The angle between any two adjacent support rods (4) is equal. The carrier rods (3) are provided with stop blocks (5) which are arranged at the upper part of the fixed connection between the carrier rods (3) and the support rods (4). It also comprises a pull rod (8) and a handle (7). One end of the pull rod (8) is fixed at the center of the second center hub (2), and the other end is fixed to the handle (7). The length of the pull rod (8) can be greater than the shortest distance between the first center hub (I) and the second center hub (2). The central parts of the first center hub (1) and the second center hub (2) are provided with threads to facilitate the rise and fall of the pull rod (8). When the tent is extended, the pull cylinder can be screwed up to press against the first center hub (1) to further reinforce the entire roof structure.

[0018] In this embodiment, the carrier rods (3) are connected to the support rods (4) with rivets (6). The rivet (6) connection achieves more firm connections without protruding parts, which is convenient for tent covering.

[0019] As shown in FIG. 3, the stop block (5) is made of plastics by integral molding and exhibits a rectangular overall structure. Two grooves are arranged on one side of the stop block (5). One limit groove (9) is buckled on the carrier rod (3), and the other limit groove (9) is used for buckling the support rod (4).

[0020] The working principle of this embodiment is as follows: only one person is required to extend the skeleton of a pop-up tent supposing it is a simple triangle or rectangle tent: drag the column of the skeleton to move outward until the skeleton is extended to a certain extent. Enter the skeleton and hold up the support rods (4). It is best to hold up the second center hub (2) to save effort. The support frame formed by the second center hub (2) and the support rods (4) will automatically spring up according to the “dead point” principle when it is higher than the plane parallel to the ground. The upper stop block (5) of the carrier rod (3) restricts and fixes the support frame to support the entire tent skeleton. Reversely, to fold up the tent skeleton, pull down the second center hub (2) or the support rods (4) to allow the second center hub (2) to be lower than the plane parallel to the ground. The support frame will automatically retract downward to fold up the tent skeleton.