A sunshade umbrella single main bone three support device

Abstract

This invention discloses a single-frame, three-support device for a sun umbrella, relating to the field of umbrellas. This invention solves the problem of insufficient strength in the main frame of current large sun umbrellas. The main frame of this single-frame, three-support device is equipped with a movable sleeve, an upper support rod, and a lower support rod. A hinged support seat has two parallel support rod limiting plates vertically mounted on the side of the sleeve. The top of each support rod has a rotating hook with an arc of 60° to 120°. Using this invention results in a simple structure, easy installation, convenient use, and an effective increase in umbrella area.

Description

Technical Field

[0001] This invention relates to the field of umbrellas, and in particular to a single main frame three-support device for a sunshade umbrella. Background Technology

[0002] The basic functions of a parasol, such as windproofing, rainproofing, and sun protection, are often at odds with the compressive strength of the main frame after it is unfolded. In particular, the main frame of a typical single-frame parasol is limited in length due to its resistance to external forces and its own strength. On the other hand, if the supporting ribs under the main frame are too long, the main frame will be unstable. That is, if the supporting ribs are too long, their strength will be weak and they will be unable to provide support. In other words, the shorter the supporting ribs are, the better they will support the main frame. Therefore, without changing the existing material of the parasol support frame, it is still impossible to expand the usable area of ​​the parasol.

[0003] Although some main ribs are reinforced with sleeves of a certain length to increase their strength, this increases the friction of the sleeve sliding on the rib, and the longer sleeve also causes some wear on the umbrella fabric. Other main ribs use square or double tubes to improve their strength, but square tubes have insufficient elasticity. That is, when a square tube main rib is opened, it will bend under its own weight or other forces, and it is difficult for the square tube to return to its original shape after bending. Therefore, currently, neither changing the shape of the main rib of the sun umbrella nor adding other auxiliary measures has achieved a good effect of increasing the umbrella area. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a single main frame three-support device for sunshades that is simple in structure, easy to install, convenient to use, and effectively expands the umbrella area.

[0005] To achieve the above objectives, the present invention provides a sunshade umbrella with a single main frame and three support devices, comprising a main pole, an upper plate, a lower plate, a support rod, and a main frame. The upper end of the main frame is hinged to the upper plate, and the lower end of the support rod is hinged to the lower plate. A movable sleeve is provided on the main frame, and the sleeve is hinged to the top end of the support rod. An upper support rod is provided on the main frame inside the sleeve, and both ends of the upper support rod are hinged to the main frame and the support rod, respectively. A lower support rod is provided on the main frame outside the sleeve, and both ends of the lower support rod are hinged to the main frame and the support rod, respectively. The sleeve is provided with a hinge support seat that is hinged to the top of the support rod. The hinge support seat has two parallel support rod limiting plates vertically arranged on the side of the sleeve. A hinge pin is vertically fixed on the support rod limiting plate. The top of the support rod is provided with a rotating hook with an arc of 60° to 120°. The outer end of the rotating hook is provided with a through hole through which the hinge pin passes. The length of the support rod limiting plate is greater than the distance from the through hole on the rotating hook to the support rod.

[0006] The arc of the hook at the top of the support rod to reduce slippage is set to 120°.

[0007] Both ends of the upper and lower support rods are hinged to the main frame and support rod. The hinges are equipped with a fixing sleeve, a guide plate and a pin. The fixing sleeve is fixed to the main frame or support rod. The guide plate consists of two parallel and perpendicular panels fixed to the fixing sleeve. The pin passes through the end of the secondary support rod and is fixed to the guide plate.

[0008] The beneficial effects of this invention are as follows: The single main frame three-support device for sunshades of this invention has a simple structure and is easy to install; not only is there a support rod under the main frame, but there are also upper and lower support rods located above the support rods, which greatly improves the compressive strength of each main frame of the sunshade; the upper and lower support rods, together with the support rod, not only increase the strength of the main frame, but also provide a technical guarantee for expanding the usable area of ​​the sunshade; the curved hooks at the upper end of the support rods effectively reduce the travel of the sleeve on the main frame, thereby better reducing the resistance of the sleeve sliding on the main frame, and also reducing wear on the umbrella fabric.

[0009] The single main frame three-support device for sunshade umbrellas of the present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the support rod on one side of the sunshade of the present invention in the unfolded state;

[0011] Figure 2 This is a schematic diagram of the folded structure of the support rod on one side of the sunshade umbrella of the present invention;

[0012] Figure 3 This is a schematic diagram of the hinge support structure of the present invention;

[0013] Figure 4 This is a schematic diagram of the rotating hook structure of the present invention;

[0014] Figure 5 This is a schematic diagram of the hinge structure of the present invention.

[0015] In the diagram: 1. Main rod, 2. Upper plate, 3. Lower plate, 4. Support rod, 5. Main bone, 6. Sleeve, 7. Upper support rod, 8. Hinge support seat, 9. Support rod limiting plate, 10. Hinge pin, 11. Rotary hook, 12. Through hole, 13. Lower support rod, 14. Hinge, 15. Fixing sleeve, 16. Guide plate, 17. Pin. Detailed Implementation

[0016] like Figure 1 and Figure 2As shown, the single-rib three-support device for the sunshade umbrella in this embodiment includes a main rod 1, an upper plate 2, a lower plate 3, a support rod 4, and a main rib 5. The upper end of the main rib 5 is hinged to the upper plate 2, and the lower end of the support rod 4 is hinged to the lower plate 3. A movable sleeve 6 is provided on the main rib 5, and the sleeve 6 is hinged to the top end of the support rod 4. An upper support rod 7 is provided on the main rib 5 inside the sleeve 6, and both ends of the upper support rod 7 are hinged to the main rib 5 and the support rod 4, respectively. A lower support rod 13 is provided on the main rib 5 outside the sleeve 6, and both ends of the lower support rod 13 are hinged to the main rib 5 and the support rod 4, respectively. The upper support rod 7 and the lower support rod 13 on the support rod 4 not only increase the strength of the main rib 5, but also provide a technical guarantee for expanding the usable area of ​​the sunshade umbrella.

[0017] like Figure 3 and Figure 4 As shown, a hinge support seat 8 is provided on the sleeve 6, which is hinged to the top of the support rod 4. Two parallel support rod limiting plates 9 are vertically arranged on the side of the sleeve 6 on the hinge support seat 8, and a hinge pin 10 is vertically fixed on the support rod limiting plate 9. The top of the support rod 4 is provided with a rotating hook 11 with an arc of 60° to 120°. In this embodiment, the arc of the rotating hook 11 at the top of the support rod 4 is set to 120°. A through hole 12 through which the hinge pin 10 passes is provided at the outer end of the rotating hook 11. The length of the support rod limiting plate 9 is greater than the distance from the through hole 12 on the rotating hook 11 to the support rod 4. The rotating hook 11 with a certain arc at the upper end of the support rod 4 can effectively reduce the sliding stroke of the sleeve 6 on the main frame 5, thereby better reducing the resistance of the sleeve 6 sliding on the main frame 5, and also reducing wear on the umbrella fabric.

[0018] like Figure 5 As shown, both ends of the upper support rod 7 and the lower support rod 13 are hinged to the main bone 5 and the support rod 4 by hinges 14. The hinges 14 are provided with a fixing sleeve 15, a guide plate 16 and a pin 17. The fixing sleeve 15 is fixed to the main bone 5 or the support rod 4. The guide plate 16 consists of two parallel and perpendicular panels fixed to the fixing sleeve 15. The pin 17 passes through the end of the upper support rod 7 or the lower support rod 13 and is fixed to the guide plate 16.

[0019] In this embodiment, the upper support rod 7 and lower support rod 13 located on the support rod 4 can further increase the strength of the main frame 5, thereby enabling the sunshade area to be expanded to a certain extent. The rotating hook 11 on the support rod 4, in cooperation with the hinge support seat 8, can effectively reduce the sliding distance of the top of the support rod 4 on the main frame 5, which can not only greatly reduce the resistance when opening the umbrella, but also reduce the wear of the hinge support seat on the umbrella fabric.

Claims

1. A single-rib three-support device for a sun umbrella, the sun umbrella comprising a main pole, an upper plate, a lower plate, a support rod, and a main rib, wherein the upper end of the main rib is hinged to the upper plate, and the lower end of the support rod is hinged to the lower plate, characterized in that, A movable sleeve is provided on the main bone, and the sleeve is hinged to the top end of the support rod. An upper support rod is provided on the main bone inside the sleeve, and both ends of the upper support rod are hinged to the main bone and the support rod, respectively. A lower support rod is provided on the main bone outside the sleeve, and both ends of the lower support rod are hinged to the main bone and the support rod, respectively. A hinge support seat is provided on the sleeve and hinged to the top end of the support rod. Two parallel support rod limiting plates are vertically provided on the side of the sleeve on the hinge support seat, and the support rod limiting plates are vertically fixed. A hinge pin is fixed; the top of the support rod is provided with a rotating hook with an arc of 120°, and the outer end of the rotating hook is provided with a through hole through which the hinge pin passes. The length of the support rod limiting plate is greater than the distance from the through hole on the rotating hook to the support rod; both ends of the upper and lower support rods are hinged to the main bone and the support rod, and the hinge is provided with a fixing sleeve, a guide plate and a pin. The fixing sleeve is fixed to the main bone or the support rod, and the guide plate consists of two parallel and perpendicular panels fixed to the fixing sleeve.

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