A double-support device for increasing the strength of a single main rib of a sunshade

Abstract

The present invention discloses a double-support device for increasing the strength of a single main rib of a sunshade umbrella, relating to the field of umbrellas. The present invention solves the problem that the main rib of a large sunshade umbrella is not strong enough at present. A movable sleeve is arranged on the main rib of the double-support device for increasing the strength of a single main rib of the sunshade umbrella, and a secondary support rod is arranged on the main rib outside the sleeve. Two parallel support rod limiting plates are vertically arranged on the side of the hinge support seat of the sleeve, and the top of the support rod is provided with a hook with a radian of 60° to 180° for reducing sliding. The structure of the present invention is simple, easy to install, convenient to use, and effectively expands the umbrella area.

Description

Technical Field

[0001] The present invention relates to the field of umbrellas, and particularly to a double support device for increasing the strength of a single main rib of a sunshade umbrella. Background Art

[0002] The basic functions of a sunshade umbrella such as wind resistance, rain resistance and sun protection are often contradictory to the compressive strength of the main rib of the umbrella after it is unfolded in actual use. Especially for the main rib of a general single-main-rib sunshade umbrella, due to the external force resistance and its own strength, the length of the single main rib is limited and cannot be too long; and if the support rib under the main rib of the sunshade umbrella is too long, it will also make the main rib unstable, that is, if the support rib is too long, the strength of the support rib is weak and it is difficult to play a supporting function. That is to say, the shorter the support rib, the better the supporting effect on the main rib. Therefore, without changing the material of the support skeleton of the existing sunshade umbrella, it is still impossible to expand the use area of the sunshade umbrella.

[0003] Although a certain length of sleeve is sleeved on some main ribs to increase the strength of the main rib, on the one hand, this increases the frictional force of the sleeve sliding on the main rib, and on the other hand, the longer sleeve also has a certain wear on the umbrella cloth; some main ribs also use square tubes or double tubes to improve the strength of the main rib, but the square tube has the problem of insufficient elasticity, that is, the main rib of the square tube shape has a certain arc when it is opened under the action of its own gravity or other forces, and it is difficult for the square tube to return to its original state after bending. Therefore, at present, whether it is to change the shape of the main rib of the sunshade umbrella or to add other auxiliary measures, the effect of expanding the umbrella area has not been achieved well. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a double support device for increasing the strength of a single main rib of a sunshade umbrella, which has a simple structure, is easy to install, is convenient to use and can effectively expand the umbrella area.

[0005] To achieve the above purpose, the present invention provides a double support device for increasing the strength of a single main rib of a sunshade umbrella. The sunshade umbrella includes a main rod, an upper disc, a lower disc, a support rod and a main rib. The upper end of the main rib is hinged to the upper disc, and the lower end of the support rod is hinged to the lower disc. A movable sleeve is arranged on the main rib, and the sleeve is hinged to the top end of the support rod; a secondary support rod is arranged outside the sleeve on the main rib, and both ends of the secondary support rod are respectively hinged to the main rib and the support rod; a hinge support seat is arranged on the sleeve and is hinged to the top end of the support rod. Two parallel support rod limiting plates are vertically arranged on the side of the sleeve of the hinge support seat, and a hinge pin shaft is vertically fixed on the support rod limiting plate; the top end of the support rod is provided with a hook for reducing sliding with an arc of 60° to 180°. A perforation through which the hinge pin shaft passes is arranged at the outer end of the hook for reducing sliding, and the length of the support rod limiting plate is greater than the distance from the perforation on the hook for reducing sliding to the support rod.

[0006] Limiting collar rings are arranged on the main rib and the secondary support rod, and the main rib and the secondary support rod are sleeved in the limiting collar rings.

[0007] The arc of the hook at the top of the support rod for reducing sliding is set to 180°.

[0008] Both ends of the auxiliary support rod are hinged to the main bone and the support rod with hinges. The hinge is provided with a fixing sleeve, a guide plate and a pin. The fixing sleeve is fixed on the main bone or the support rod. The guide plate is two parallel panels vertically fixed on the fixing sleeve. The pin passes through the end of the auxiliary support rod and is fixed on the guide plate.

[0009] The beneficial effects of the present invention are as follows: The double support device for increasing the strength of a single main bone of the sunshade in the present invention has a simple structure and is easy to install; there is not only a support rod under the main bone, but also an auxiliary support rod above the support rod under the main bone, which greatly improves the compressive capacity of the main bone on the outer side of the top of the support rod of the sunshade; the auxiliary support rod cooperates with the support rod to not only increase the strength of the main bone, but also provide a technical guarantee for expanding the use area of the sunshade; the main bone and the auxiliary support rod are sleeved with a limit collar, which is similar to achieving the effect that the main bone and the auxiliary support rod are approximately close together and have the effect of a double main bone, that is to say, the cooperation of the main bone, the support rod and the auxiliary support rod can better enhance the compressive capacity of the main bone; the hook with a certain arc at the upper end of the support rod for reducing sliding can effectively reduce the sliding stroke of the sleeve on the main bone, thereby better reducing the sliding resistance of the sleeve on the main bone, and can also reduce the wear of the umbrella cloth.

[0010] The following further describes the double support device for increasing the strength of a single main bone of the sunshade in the present invention with reference to the accompanying drawings. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the unfolded state of the main bone on one side of the sunshade in the present invention;

[0012] Figure 2 It is a schematic structural diagram of the folded state of the main bone on one side of the sunshade in the present invention;

[0013] Figure 3 It is a schematic structural diagram of the application of the hinge support seat in the present invention;

[0014] Figure 4 It is a schematic structural diagram of the hook for reducing sliding in the present invention;

[0015] Figure 5 It is a schematic structural diagram of the hinge in the present invention.

[0016] In the figure: 1, main rod; 2, upper disc; 3, lower disc; 4, support rod; 5, main bone; 6, sleeve; 7, auxiliary support rod; 8, hinge support seat; 9, support rod limit plate; 10, hinge pin shaft; 11, hook for reducing sliding; 12, perforation; 13, limit collar; 14, hinge; 15, fixing sleeve; 16, guide plate; 17, pin. Detailed Embodiments

[0017] As Figure 1 and Figure 2 shown, the double - support device for increasing the strength of a single main rib of the sunshade in this embodiment. The sunshade includes a main rod 1, an upper disk 2, a lower disk 3, a support rod 4 and a main rib 5. The upper end of the main rib 5 is hinged to the upper disk 2, and the lower end of the support rod 4 is hinged to the lower disk 3. A movable sleeve 6 is arranged on the main rib 5, and the sleeve 6 is hinged to the top end of the support rod 4. A secondary support rod 7 is arranged outside the sleeve 6 on the main rib 5, and both ends of the secondary support rod 7 are hinged to the main rib 5 and the support rod 4 respectively. The secondary support rod 7 not only increases the strength of the main rib 5, but also provides a technical guarantee for expanding the use area of the sunshade. Limit collar rings 13 are arranged on the main rib 5 and the secondary support rod 7, and the main rib 5 and the secondary support rod 7 are sleeved within the limit collar rings 13. The main rib 5 and the secondary support rod 7 being sleeved by the limit collar rings 13 is similar to achieving the effect that the main rib 5 and the secondary support rod 7 are approximately juxtaposed to have the effect of a double main rib, that is to say, the cooperation of the main rib 5 with the support rod 4 and the secondary support rod 7 can better enhance the compressive capacity of the main rib 5.

[0018] As Figure 3 and Figure 4 shown, a hinge support seat 8 is arranged on the sleeve 6 and is hinged to the top end of the support rod 4. Two parallel support rod limiting plates 9 are vertically arranged on the side of the sleeve 6 of the hinge support seat 8, and a hinge pin shaft 10 is vertically fixed on the support rod limiting plates 9; a hook 11 for reducing sliding with an arc of 60° to 180° is arranged at the top end of the support rod 4. In this embodiment, the arc of the hook 11 for reducing sliding at the top end of the support rod 4 is set to 180°. A perforation 12 through which the hinge pin shaft 10 passes is arranged at the outer end of the hook 11 for reducing sliding, and the length of the support rod limiting plates 9 is greater than the distance from the perforation 12 on the hook 11 for reducing sliding to the support rod 4. The hook 11 for reducing sliding with a certain arc arranged at the upper end of the support rod 4 can effectively reduce the sliding stroke of the sleeve 6 on the main rib 5, thereby better reducing the sliding resistance of the sleeve 6 on the main rib 5, and can also reduce the wear on the umbrella cloth.

[0019] As Figure 5 shown, hinges 14 are used for both ends of the secondary support rod 7 to be hinged to the main rib 5 and the support rod 4. The hinge 14 is provided with a fixed sleeve 15, a guide plate 16 and a pin column 17. The fixed sleeve 15 is fixed on the main rib 5 or the support rod 4, the guide plate 16 is two parallel panels vertically fixed on the fixed sleeve 15, and the pin column 17 passes through the end of the secondary support rod 7 and is fixed on the guide plate 16.

[0020] The secondary support rod 7 located on the support rod 4 in this embodiment can further increase the strength of the main bone 5, thereby providing technical support for expanding the sunshade area to a certain extent; the hook 11 for reducing sliding on the support rod 4 cooperates with the hinge support seat 8 to well reduce the sliding distance of the top of the support rod 4 on the main bone 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 cloth; the limit collar 13 is sleeved on the main bone 5 and the secondary support rod 7, making the main bone 5 and the secondary support rod 7 approximately close together to achieve the effect of a double main bone.

Claims

1. A double support device for increasing the strength of a single main rib of a sunshade. The sunshade includes a main rod, an upper disc, a lower disc, a support rod and a main rib. The upper end of the main rib is hinged to the upper disc, and the lower end of the support rod is hinged to the lower disc. It is characterized in that, A movable sleeve is arranged on the main bone, and the sleeve is hinged to the top end of the support rod; a secondary support rod is arranged on the main bone outside the sleeve, and two ends of the secondary support rod are respectively hinged to the main bone and the support rod; a hinge support seat is arranged on the sleeve and hinged to the top end of the support rod. Two parallel support rod limiting plates are vertically arranged on the side of the sleeve of the hinge support seat, and a hinge pin shaft is vertically fixed on the support rod limiting plate; the top end of the support rod is provided with a hook with a 180° arc for reducing sliding, a through hole through which the hinge pin shaft passes is arranged at the outer end of the hook for reducing sliding, and the length of the support rod limiting plate is greater than the distance from the through hole on the hook for reducing sliding to the support rod; limiting collar rings are arranged on the main bone and the secondary support rod, and the main bone and the secondary support rod are sleeved in the limiting collar rings; hinges are used for hinging the two ends of the secondary support rod to the main bone and the support rod respectively. Each hinge is provided with a fixed sleeve, a guide plate and a pin column. The fixed sleeve is fixed on the main bone or the support rod, the guide plate is composed of two parallel panels vertically fixed on the fixed sleeve, and the pin column passes through the end of the secondary support rod and is fixed on the guide plate.

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