Framework structure of folding sunshade

Abstract

A framework structure of a folding sunshade comprises an upper short rib part and a lower main rib part, the lower main rib part comprises a first rib part, a second rib part and a third rib part, the inner end of the upper short rib part is pivoted to an upper umbrella nest, the outer end of the upper short rib part is hinged to the middle of the first rib part, and the inner end of the first rib part is pivoted to a lower umbrella nest; the inner end of the second bone piece is hinged to the middle position between the outer end of the first bone piece and the connecting point of the upper short bone piece, the outer end of the second bone piece is hinged to the inner end of the third bone piece, and connecting bone pieces are further arranged between the upper short bone piece and the lower main bone piece and comprise the first connecting bone piece and the second connecting bone piece. The inner end of the first connecting bone piece is hinged to the side, close to the outer end, of the middle of the upper short bone piece, the outer end of the first connecting bone piece is hinged to the inner end of the second connecting bone piece, the outer end of the second connecting bone piece is hinged to the side, close to the inner end, of the middle of the third bone piece, and the outer end of the first bone piece is hinged to the side, close to the inner end, of the middle of the second connecting bone piece. The connecting piece is simple and reasonable in structure, firm and stable in connection, good in tensile strength, not prone to deformation caused by external force influence and suitable for outdoor use.

Description

Technical Field

[0001] The utility model belongs to the technical field of folding umbrellas and relates to a skeleton structure of a folding parasol. Background Art

[0002] A folding umbrella is an umbrella with a retractable handle and several sections of ribs riveted together. Compared with ordinary umbrellas, folding umbrellas can be shortened and are easy to carry and store. However, the support force of the existing folding umbrella skeleton structure is weak. When encountering strong winds and heavy rains, the ribs are easily deformed and broken, which affects the use.

[0003] Upon investigation, the existing Chinese patent number CN202321930056.8, "A folding umbrella frame structure", includes a support rod, an umbrella nest assembly and multiple groups of rib assemblies evenly distributed along the circumferential direction. The rib assembly includes a second rib and a third rib. The second rib and the third rib in the same group of rib assemblies are composed of two identical round rods, and the second rib and the third rib are both double-layer structures, including a hard layer and a flexible layer, and the flexible layer is wrapped around the hard layer; the structure designs the second rib and the third rib as two, and a double-layer structure, which enhances the wind resistance, but the structure is relatively complicated, not only troublesome to process and assemble, but also costly.

[0004] There is also a Chinese patent "Folding Umbrella Frame" with patent number CN202320666007.1, which includes a main frame, a sliding umbrella nest and a fixed umbrella nest. The fixed umbrella nest is hinged with a support bone, which is divided into a connecting section, an extension section and a supporting section from the inside to the outside. The sliding umbrella nest is hinged with a number of connecting rods, and the free end of the connecting rod is hinged with the connecting section. The sliding umbrella nest is hinged with a number of reinforcing rods located below the connecting rod, and the end of the reinforcing rod is slidably connected to the extension section. This structure can support the support bone by arranging a reinforcing rod below the connecting rod, but the supporting strength is not ideal and needs further improvement. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a skeleton structure of a folding parasol with a simple and reasonable structure, firm and stable connection, good tensile strength, and a relatively larger umbrella surface in view of the above technical status quo.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a skeleton structure of a folding parasol, characterized in that: the skeleton structure includes an upper short bone member and a lower main bone member, wherein the lower main bone member includes a first bone member, a second bone member and a third bone member, the inner end of the upper short bone member is pivotally connected to the upper umbrella nest, and the outer end is hinged to the middle part of the first bone member, the inner end of the first bone member is pivotally connected to the lower umbrella nest, the inner end of the second bone member is hinged to the middle position between the outer end of the first bone member and the connection point of the upper short bone member, and the second bone member is hinged to the middle position between the outer end of the first bone member and the connection point of the upper short bone member. The outer end of the component is hinged to the inner end of the third bone component, and a connecting bone component is also provided between the upper short bone component and the lower main bone component. The connecting bone component is divided into a first connecting bone component and a second connecting bone component, wherein the inner end of the first connecting bone component is hinged to a position of the middle part of the upper short bone component close to the outer end, the outer end of the first connecting bone component is hinged to the inner end of the second connecting bone component, the outer end of the second connecting bone component is hinged to the middle part of the third bone component close to the inner end, and the outer end of the first bone component is hinged to the middle part of the second connecting bone component close to the inner end.

[0007] As an improvement, the length of the first bone member is greater than the length of the third bone member and greater than the length of the second bone member.

[0008] Further, the length of the first connecting bone piece = the distance from the outer end of the first bone piece to the connection point of the upper short bone piece, and the length of the second connecting bone piece = the long bone piece of the second bone piece + the distance from the outer end of the upper short bone piece to the connection point of the first connecting bone piece, thereby forming two connected parallelogram structures

[0009] Furthermore, the upper short bone member, the lower main bone member and the connecting bone member all use metal rods of the same specification.

[0010] Finally, rib connectors are installed on the upper short bone, the first bone, the third bone, and the second connecting bone, respectively. The upper short bone and the first bone, the first connecting bone, the first bone and the second bone, the third bone and the second connecting bone, and the second connecting bone and the first bone are detachably connected through the rib connectors.

[0011] Compared with the prior art, the advantages of the utility model are: the lower main bone member includes a first bone member, a second bone member and a third bone member, the inner end of the upper short bone member is pivotally connected to the upper umbrella nest, the outer end is hinged to the middle part of the first bone member, the inner end of the second bone member is hinged to the middle position between the outer end of the first bone member and the upper short bone member, the outer end of the second bone member is hinged to the inner end of the third bone member, the outer end of the first connecting bone member is hinged to the inner end of the second connecting bone member, the outer end of the second connecting bone member is hinged to the middle part of the third bone member near the inner end, and the outer end of the first bone member is hinged to the middle part of the second connecting bone member near the inner end, so that the structure is firm and stable, and the umbrella surface can be made relatively large; the umbrella rib connector is provided, which is convenient for installation and disassembly, and is convenient for maintenance and replacement of umbrella ribs. The utility model has a simple and reasonable structure, a firm and stable connection, good tensile strength, is not easily deformed by external forces, and is suitable for outdoor use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the structure when the ribs are folded;

[0014] Figure 3 for Figure 1 Schematic diagram of the structure when the ribs are fully expanded. DETAILED DESCRIPTION

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] like Figures 1 to 3 As shown, a skeleton structure of a foldable parasol comprises an upper short bone member 1, a lower main bone member and a connecting bone member. The upper short bone member 1, the lower main bone member and the connecting bone member all adopt metal rods of the same specification. The lower main bone member includes a first bone member 2, a second bone member 3 and a third bone member 4, the inner end of the upper short bone member 1 is pivotally connected to the upper umbrella nest 7, and the outer end is hinged to the middle part of the first bone member 2, the inner end of the first bone member 2 is pivotally connected to the lower umbrella nest 8, the inner end of the second bone member 3 is hinged to the middle position between the outer end of the first bone member 2 and the connection point of the upper short bone member 1, and the outer end of the second bone member 3 is hinged to the inner end of the third bone member 4, and the connecting bone member is divided into a first connecting bone member 5 and a second connecting bone member 6, wherein the inner end of the first connecting bone member 5 is hinged to the position of the middle part of the upper short bone member 1 near the outer end, the outer end of the first connecting bone member 5 is hinged to the inner end of the second connecting bone member 6, the outer end of the second connecting bone member 6 is hinged to the middle part of the third bone member 4 near the inner end, and the outer end of the first bone member 2 is hinged to the middle part of the second connecting bone member 6 near the inner end. In this embodiment, the length of the first bone member 2>the length of the third bone member 4>the length of the second bone member 3. The length of the first connecting bone 5 = the distance from the outer end of the first bone 2 to the connection point of the upper short bone 1, and the length of the second connecting bone 6 = the long bone of the second bone 3 + the distance from the outer end of the upper short bone 1 to the connection point of the first connecting bone 5. That is to say, in the unfolded state, two connected parallelogram structures A and B are formed.

[0017] Rib connectors are installed on the upper short bone member 1, the first bone member 2, the third bone member 4, and the second connecting bone member 6, respectively. The upper short bone member 1 and the first bone member 2, the first connecting bone member 5, the first bone member 2 and the second bone member 3, the third bone member 4 and the second connecting bone member 6, and the second connecting bone member 6 and the first bone member 2 are detachably connected through the rib connectors. The rib connectors can be screws and nuts or various conventional quick connectors.

[0018] The skeleton structure of this embodiment has high strength, stable and reliable connection, is not easily deformed by external forces, is suitable for outdoor use, and is easy to install and disassemble, facilitating daily maintenance.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A skeleton structure of a folding parasol, characterized in that: The skeleton structure includes an upper short bone member and a lower main bone member, wherein the lower main bone member includes a first bone member, a second bone member and a third bone member, the inner end of the upper short bone member is pivotally connected to the upper umbrella nest, and the outer end is hinged to the middle part of the first bone member, the inner end of the first bone member is pivotally connected to the lower umbrella nest, the inner end of the second bone member is hinged to the middle position between the outer end of the first bone member and the connection point of the upper short bone member, the outer end of the second bone member is hinged to the inner end of the third bone member, and a connecting bone member is also provided between the upper short bone member and the lower main bone member, and the connecting bone member is divided into a first connecting bone member and a second connecting bone member, wherein the inner end of the first connecting bone member is hinged to a position of the middle part of the upper short bone member close to the outer end, the outer end of the first connecting bone member is hinged to the inner end of the second connecting bone member, the outer end of the second connecting bone member is hinged to the middle part of the third bone member close to the inner end, and the outer end of the first bone member is hinged to the middle part of the second connecting bone member close to the inner end.

2. The skeleton structure according to claim 1, characterized in that: The length of the first bone member is greater than the length of the third bone member and greater than the length of the second bone member.

3. The skeleton structure according to claim 2, characterized in that: The length of the first connecting bone = the distance from the outer end of the first bone to the connection point of the upper short bone, and the length of the second connecting bone = the length of the second bone + the distance from the outer end of the upper short bone to the connection point of the first connecting bone, thereby forming two connected parallelogram structures.

4. The skeleton structure according to claim 1, 2 or 3, characterized in that: The upper short bone piece, the lower main bone piece and the connecting bone piece all adopt metal rods of the same specification.

5. The skeleton structure according to claim 1, 2 or 3, characterized in that: The upper short bone member, the first bone member, the third bone member, and the second connecting bone member are respectively installed with rib connecting members, and the upper short bone member and the first bone member, the first connecting bone member, the first bone member and the second bone member, the third bone member and the second connecting bone member, and the second connecting bone member and the first bone member are detachably connected through the rib connecting members.

6. The skeleton structure according to claim 5, characterized in that: The umbrella rib connectors are screws and nuts or quick connectors.

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