Umbrella rib structure of multi-folding umbrella

Abstract

The utility model discloses an umbrella rib structure of a multi-folding umbrella, which comprises a plurality of sequentially hinged middle branch ribs, a main branch rib hinged with the inner end of the innermost middle branch rib, an outer branch rib hinged with the outer end of the outermost middle branch rib and a plurality of loops for connection, an upper branch rib is rotatably connected onto the main branch rib, and the inner end of the main branch rib is connected with a lower nest. The other end of the upper branch bone is connected with the upper nest, the main branch bone, the middle branch bone and the outer branch bone are all carbon fiber bones, and the middle of the main branch bone is fixedly provided with an adapter which is in adapter connection with the upper branch bone. The umbrella rib structure of the multi-folding umbrella is smaller in weight and better in supporting strength.

Description

Technical Field

[0001] The utility model relates to an umbrella rib structure of a multi-fold umbrella, belonging to the technical field of umbrellas. Background Art

[0002] Umbrella is a very common tool for shading or shielding from rain and snow, and is also very common in people's daily life. For the convenience of carrying, the umbrella is made into a foldable umbrella structure with ribs that can be folded. The existing foldable umbrella ribs are made into five or more folds to achieve a larger area when the umbrella is unfolded and a shorter height when folded. The umbrella ribs include a plurality of middle ribs hinged in sequence, a main rib hinged to the inner end of the innermost middle rib, an outer rib hinged to the outer end of the outermost middle rib, and a plurality of connecting loops. The main rib is connected to an upper rib, and the main rib, the middle rib, and the outer rib play the role of supporting In order to support the umbrella surface, the existing main support bones, middle support bones and outer support bones are basically made of metal or glass fiber materials. In order to achieve the supporting strength, a larger diameter is required, which makes the weight larger and the folding and folding is also poor, which affects the lightweight and miniaturization of the umbrella. For this reason, an umbrella structure using a middle support bone made of carbon fiber material as disclosed in application number CN200420083829.4 has appeared. However, since the middle part of the main support bone needs to be hinged with the upper support bone, the main support bone is still made of metal, and a transfer hole is directly opened in the middle part to achieve the connection. Therefore, to a certain extent, it still affects the lightweight of the umbrella. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a rib structure of a multi-fold umbrella, which has a smaller weight and better supporting strength, and can solve the deficiencies of the prior art.

[0004] The technical solution of the utility model is: a rib structure of a multi-fold umbrella, comprising a plurality of middle branches hinged in sequence, a main branch hinged to the inner end of the innermost middle branch, an outer branch hinged to the outer end of the outermost middle branch, and a plurality of loops for connection, an upper branch connected to the main branch, the inner end of the main branch connected to the lower nest, and the other end of the upper branch connected to the upper nest, the main branch, the middle branch and the outer branch are all carbon fiber bones, and an adapter connected to the upper branch is fixed in the middle of the main branch.

[0005] Furthermore, a loop cover is provided in the middle of several of the middle branches, and the loop cover has a limiting hole for the loop to pass through.

[0006] Furthermore, the adapter and the return line cover are injection molded on the corresponding main branch bones and middle branch bones.

[0007] Furthermore, the carbon fiber frame is flat, and its thickness in the direction perpendicular to the umbrella surface is greater than its thickness in the direction parallel to the umbrella surface.

[0008] By implementing the utility model, an adapter is provided in the middle part of the main branch to connect with the upper branch, and there is no need to drill holes on the main branch. The main branch, middle branch and outer branch used for supporting the umbrella surface are all made of carbon fiber bones, which can reduce the weight of the umbrella ribs and improve the supporting strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the utility model in the unfolded state;

[0010] Figure 2 It is a schematic diagram of the carbon fiber skeleton of the present invention.

[0011] As shown in the figure: middle branch bone 1; main branch bone 2; outer branch bone 3; return line 4; upper branch bone 5; adapter 6; return line cover 8. DETAILED DESCRIPTION

[0012] Embodiments of the present utility model: Figure 1 to Figure 2 As shown, a rib structure of a multi-fold umbrella comprises a plurality of middle ribs 1 hinged in sequence, a main rib 2 hinged to the inner end of the innermost middle rib 1, an outer rib 3 hinged to the outer end of the outermost middle rib 1, and a plurality of loops 4 for connection. The more the number of middle ribs 1 hinged in sequence is, the more folds the ribs have. For example, there are two middle ribs 1 in the present application, and the two ends of the middle ribs 1 are sleeved with connecting parts, and the middle ribs 1 are transferred through the connecting parts. The outer ends of the main ribs 2 and the inner ends of the outer ribs 3 are also sleeved with connecting parts, and the main ribs 2 and the outer ribs 3 are connected to the middle ribs through the connecting parts. The support bone 1 is hinged, and a plurality of loops 4 are connected to the corresponding connecting parts to connect and transmit the main support bone 2, a plurality of middle support bones 1 and the outer support bone 3. In the present application, the main support bone 2, the middle support bone 1 and the outer support bone 3 are all carbon fiber bones. An adapter 6 connected to the upper support bone 5 is fixedly provided in the middle part of the main support bone 2. The inner end of the main support bone 2 is connected to the lower nest of the umbrella, one end of the upper support bone is connected to the adapter 6, and the other end is connected to the upper nest of the umbrella, so that the main support bone 2, the middle support bone 1 and the outer support bone 3 used for supporting the umbrella surface are all made of carbon fiber bones, which can reduce the weight of the umbrella ribs and improve the supporting strength.

[0013] As a preferred embodiment, a loop cover 8 is provided in the middle part of the middle branch 1. The loop cover 8 has a limiting hole for the loop 4 to pass through. After the umbrella is folded, the loop cover 8 tightens the loop 4 to limit the position, so that the main branch 2, the middle branch 1, and the outer branch 3 remain in a gathered state, so that the umbrella remains in the gathered state after folding and will not become loose.

[0014] As a preferred embodiment, the adapter 6 is injection molded on the main support bone 2, and the return line cover 8 is injection molded on the middle support bone 1, so as to achieve a stable connection between the adapter 6 and the return line cover 8 and prevent the adapter 6 and the return line cover 8 from moving.

[0015] As a preferred embodiment, the carbon fiber bones, i.e., the main branch bones 2, the middle branch bones 1, and the outer branch bones 3, are flat. The cross-section of the existing carbon fiber bones is circular, and the load-bearing capacity in the direction perpendicular to the umbrella surface and in the direction parallel to the umbrella surface is almost the same. However, in practice, the main branch bones 2, the middle branch bones 1, and the outer branch bones 3 play the role of supporting the umbrella surface, and are subjected to a large force in the direction perpendicular to the umbrella surface, and are subjected to a very small lateral force in the direction parallel to the umbrella surface. Therefore, making the carbon fiber bones into flat shapes with cross-sections such as rectangles, ellipses, etc. is more in line with actual usage requirements, and has good load-bearing capacity while saving materials.

Claims

1. A rib structure of a multi-fold umbrella, comprising a plurality of middle ribs hinged in sequence, a main rib hinged to the inner end of the innermost middle rib, an outer rib hinged to the outer end of the outermost middle rib, and a plurality of connecting loops, an upper rib connected to the main rib, the inner end of the main rib connected to the lower nest, and the other end of the upper rib connected to the upper nest, characterized in that: The main branch bone, the middle branch bone and the outer branch bone are all carbon fiber bones, and a transition piece is fixedly provided in the middle of the main branch bone to connect with the upper branch bone.

2. The rib structure of a multi-fold umbrella according to claim 1, characterized in that: A loop cover is provided in the middle of the plurality of middle branches, and the loop cover has a limiting hole for the loop to pass through.

3. The rib structure of a multi-fold umbrella according to claim 2, characterized in that: The adapter and the return line cover are injection molded on the corresponding main branch bones and the middle branch bones.

4. The rib structure of a multi-fold umbrella according to any one of claims 1 to 3, characterized in that: The carbon fiber frame is flat, and its thickness in a direction perpendicular to the umbrella surface is greater than its thickness in a direction parallel to the umbrella surface.

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