A slim multi-fold umbrella joint structure

Abstract

The utility model belongs to the technical field of folding umbrella, disclose a kind of slimming formula multi-fold umbrella joint structure, the joint structure is used to connect tail bone, middle main bone and connecting bone, the joint structure integrally cast, the joint structure includes main body, the top of main body is equipped with recessed portion;The recessed portion separates the left and right sides of main body into first branch and second branch, the tail end of first branch is equipped with insertion hole, and tail bone is installed on first branch by insertion hole;First bifurcation and second bifurcation are respectively equipped in recessed portion and located at its front and back sides.This scheme carries out optimization layout and space distribution to joint structure, by designing recessed portion and opening bifurcation in its front and back, respectively accommodating connecting bone and middle main bone, so that all framework is folded to umbrella handle direction after folding umbrella, middle main bone and tail bone are in parallel state, avoid stacking crowded.Middle main bone and connecting bone are hidden in the framework accommodating space formed by bifurcation and recessed portion naturally, without extra thickening.

Description

Technical Field

[0001] This utility model relates to the field of folding umbrella technology, and more specifically, to a slim-fit multi-fold umbrella connector structure. Background Technology

[0002] Traditional umbrella connector structure, such as Figure 1 As shown, a one-piece design is typically used, with the connector (a1) connecting the connecting bone (a2), the central cardinal bone (a3), and the coccyx (a4) respectively via protruding hinge ears (a5, a6). However, this structure has the following drawbacks:

[0003] 1. Bulkiness issue: When the umbrella is folded up, the ribs stack on the joint surface, resulting in a large folded thickness and an overall bulky appearance. Figure 2 As shown.

[0004] 2. Risk of umbrella fabric wear: Exposed umbrella ribs can easily tear the umbrella fabric, affecting its service life.

[0005] To solve the above problems, the existing technology has been improved as follows: Figure 3 The ramp joint structure (b1) shown has a U-shaped groove structure (b2) on its surface. The connecting ribs and the main rib are embedded in the groove through the hinge holes (b3, b4) to reduce the volume when the umbrella is closed. However, in order to accommodate the umbrella ribs, the groove needs to be deepened and the joint thickened, resulting in material waste and increased weight. Due to the thickening of the joint structure, the radial space after the umbrella is closed is still relatively large. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a slimmed-down multi-fold umbrella connector structure that significantly reduces the umbrella's folding volume through optimized layout and space allocation.

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A slim multi-fold umbrella connector structure is provided for connecting the tailbone, the central main bone, and the connecting bone. The connector structure is integrally cast and includes a main body with a recessed portion at the top.

[0009] The recessed portion divides the left and right sides of the main body into a first branch and a second branch. The tail end of the first branch is provided with an insertion hole, and the coccyx is installed on the first branch through the insertion hole.

[0010] The recessed portion has a first fork and a second fork respectively on its front and rear sides. The inner walls of the first fork are provided with first hinge holes communicating with the outside of the main body. The connecting bone is installed in the first fork through a hinge and the first hinge hole.

[0011] The inner wall of the second fork has two sides with second hinge holes that communicate with the outside of the main body. The main bone is installed in the second fork through the hinges and the second hinge holes.

[0012] As a further description of the above technical solution: the length of the tail end of the first branch is longer than that of the second branch.

[0013] As a further description of the above technical solution: the first branch is widened.

[0014] As a further description of the above technical solution: the outer walls on both the left and right sides of the main body are provided with notches at the hinge holes.

[0015] As a further description of the above technical solution: the inlet end of the insertion hole has a smooth arc surface.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution optimizes the layout and space allocation of the joint structure. By designing a recessed part and opening branches at the front and back, it accommodates the connecting bone and the main bone respectively. This allows all the frames to converge towards the handle after the umbrella is closed, with the main bone and tail bone in a parallel position, avoiding stacking and crowding.

[0018] The main rib and connecting ribs are hidden within the skeletal space naturally formed by the forks and recesses, without the need for additional thickening. Compared with the prior art, the joint structure of this invention is thinner. After the umbrella is closed, it occupies less radial space within the same radius with the umbrella handle as the center, making it more convenient to store and carry. It is especially suitable for multi-fold umbrellas. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an existing folding umbrella connector structure;

[0020] Figure 2 This is a schematic diagram of an existing umbrella frame after it has been closed.

[0021] Figure 3 This is a schematic diagram of the improved connector based on existing technology;

[0022] Figure 4 This is a schematic diagram of the connector structure of this utility model;

[0023] Figure 5 This is one of the schematic diagrams showing the connection of the connector structure of this utility model to the umbrella ribs;

[0024] Figure 6 This is the second schematic diagram of the connector structure of this utility model connecting the umbrella ribs;

[0025] Figure 7 This is a schematic diagram of the umbrella frame after the umbrella is closed.

[0026] Explanation of the labels in the diagram:

[0027] 1. Connector structure; 11. Main body; 111. First branch; 112. Second branch; 113. Insertion hole; 12. Recess; 121. First fork; 1211. First hinge hole; 122. Second fork; 1221. Second hinge hole; 13. Notch;

[0028] 2. Coccyx;

[0029] 3. Central main bone;

[0030] 4. Connecting bones. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 4-7 A slim multi-fold umbrella joint structure is provided. The joint structure 1 is used to connect the tail bone 2, the middle main bone 3 and the connecting bone 4. The joint structure 1 is integrally cast to improve the structural strength and reduce the assembly process. The connector structure 1 includes a main body 11, and a recess 12 is provided on the top of the main body 11. The recess 12 divides the left and right sides of the main body 11 into a first branch 111 and a second branch 112. An insertion hole 113 is provided at the tail end of the first branch 111, and the coccyx 2 is installed on the first branch 111 through the insertion hole 113. A first fork 121 and a second fork 122 are respectively provided in the recess 12 and on its front and rear sides. A first hinge hole 1211 communicating with the outside of the main body 11 is provided on both sides of the inner wall of the first fork 121. The connecting bone 4 is installed in the first fork 121 through a hinge and the first hinge hole 1211. A second hinge hole 1221 communicating with the outside of the main body 11 is provided on both sides of the inner wall of the second fork 122. The central main bone 3 is installed in the second fork 122 through a hinge and the second hinge hole 1221.

[0033] This solution improves the joint structure 1 by creating forks on both the front and rear sides of the recessed part 12 and installing the main rib 3 and connecting rib 4 in the two forks respectively. This allows all the frames to converge towards the handle after the umbrella is closed, with the main rib 3 and tail rib 2 arranged side by side (e.g., Figure 6As shown), to avoid stacking and crowding, the main rib 3 and connecting rib 4 are hidden in the space formed by the recessed part 12. The fork and the recessed part 12 naturally form a skeleton accommodating space. Compared with the prior art, the joint structure 1 of the present invention is thinner. Within the same radius with the umbrella handle as the center, the purpose of reducing the diameter of the umbrella when closed is achieved. The umbrella is smaller in size after being closed, and it is more convenient to store and carry. It is especially suitable for multi-fold umbrellas (such as five-fold and seven-fold umbrellas).

[0034] The first branch 111 is longer than the second branch 112. This ensures a deeper installation depth for the coccyx 2. The longer first branch 111 provides greater torque, making the coccyx 2 more stable during opening and closing, reducing the risk of wobbling or deformation. Furthermore, the first branch 111 is widened, providing a larger contact area, making the coccyx 2 more secure after insertion, reducing loosening or swaying.

[0035] Furthermore, recesses 13 are provided on the outer walls of both sides of the main body 11 at the hinge holes to accommodate the heads of hinge components (such as rivets or screws) so that they do not protrude outwards and avoid scratching or interfering with folding. The inlet end of the insertion hole 113 is a smooth arc surface, and other parts of the main body 11 are also made with arc transitions to prevent sharp edges from damaging the umbrella ribs or umbrella fabric surface.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A slim, multi-fold umbrella connector structure, the connector structure (1) being used to connect the coccyx (2), the central vertebra (3), and the connecting bone (4), characterized in that: The joint structure (1) is integrally cast and molded. The joint structure (1) includes a main body (11) and a recess (12) is provided on the top of the main body (11). The recess (12) divides the left and right sides of the main body (11) into a first branch (111) and a second branch (112). The tail end of the first branch (111) is provided with an insertion hole (113), and the coccyx (2) is installed on the first branch (111) through the insertion hole (113). The recess (12) has a first fork (121) and a second fork (122) respectively on its front and rear sides. The inner walls of the first fork (121) are provided with first hinge holes (1211) communicating with the outside of the main body (11). The connecting bone (4) is installed in the first fork (121) through the hinge and the first hinge hole (1211). The inner walls of the second fork (122) are provided with second hinge holes (1221) that communicate with the outside of the main body (11). The main bone (3) is installed in the second fork (122) through the hinge and the second hinge hole (1221).

2. The slim multi-fold umbrella connector structure according to claim 1, characterized in that: The tail length of the first branch (111) is longer than that of the second branch (112).

3. The slim multi-fold umbrella connector structure according to claim 1, characterized in that: The first branch (111) is widened.

4. The slim multi-fold umbrella connector structure according to claim 1, characterized in that: The main body (11) has notches (13) on both the left and right outer walls and at the hinge holes.

5. The slim multi-fold umbrella connector structure according to claim 1, characterized in that: The inlet end of the insertion hole (113) has a smooth arc surface.

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