Umbrella structure capable of preventing ribs from rubbing middle rod

Abstract

The utility model provides an umbrella structure capable of preventing ribs from rubbing a middle rod, which is characterized in that the middle rod does not need to be perpendicular to the ground, a user can fold the umbrella by enabling the middle rod to be perpendicular to or parallel to the ground, and an anti-abrasion block can prevent a pivot joint part of a branch rib and an inner main rib from rubbing the middle rod. Comprising a middle rod, an upper nest arranged at the upper end of the middle rod, a lower nest arranged on the middle rod, an inner main rib of which the upper end is rotatably arranged on the upper nest, a branch rib of which the lower end is rotatably arranged on the lower nest, and an anti-abrasion block which is rotatably arranged between the upper end of the branch rib and the middle part of the inner main rib, one end of the arc-shaped rod is arranged in the middle of the inner main rib, the arc-shaped open groove is formed in the anti-abrasion block and is in sliding fit with the other end of the arc-shaped rod, and the compression spring is arranged between the anti-abrasion block and the other end of the arc-shaped rod and is located in the arc-shaped open groove. And the limiting device is arranged between the other end of the arc-shaped rod and the anti-abrasion block and is positioned in the arc-shaped open groove.

Description

Technical Field

[0001] The utility model relates to the technical field of umbrellas, in particular to an umbrella structure for preventing umbrella ribs from rubbing against a middle rod. Background Art

[0002] Umbrellas are used as tools to protect against the sun and rain. In order to provide sufficient support for the umbrella surface, the ribs are generally made of metal materials with high rigidity. Regardless of whether it is a solid rib or a "U"-shaped rib, when the umbrella is folded, since the support ribs and the inner main ribs are all retracted against the outer surface of the middle rod, there is a situation where a certain part of the support ribs or the inner main ribs rubs against or even scratches the outer surface of the middle rod. In particular, the part where the support ribs and the inner main ribs are pivotally connected is the deepest against the middle rod, and the friction on the middle rod is the most serious; not only does it scratch the middle rod and affect its appearance, but also for the multi-fold middle rod, the friction of a certain part will affect its flexibility of extension and contraction, reducing the service life of the middle rod.

[0003] The Chinese patent number CN03224237.9 discloses an umbrella structure for preventing the ribs from rubbing against the middle rod, which specifically discloses that an anti-wear piece is arranged at the pivotal connection between the support ribs and the inner main ribs of the umbrella, and the anti-wear piece is in contact with the outer surface of the middle rod when the umbrella is folded, thereby locating the pivotal connection, effectively preventing the middle rod from being rubbed by the rigid support ribs and the inner main ribs, extending the service life of the middle rod, and ensuring the working performance and aesthetics of the middle rod. The utility model has a simple structure, is easy to assemble, and is highly practical.

[0004] Although the above patents can solve the corresponding technical problems, they still have certain defects:

[0005] When folding the umbrella, the middle rod needs to be perpendicular to the ground so that the anti-wear part can protrude slightly inward relative to the support bone and the inner main bone. When the user folds the umbrella with the middle rod parallel to the ground, the anti-wear part cannot be driven to approach the end of the middle rod around the pivotal part of the inner main bone, so that the anti-wear part at the end close to the ground moves away from the pivotal part around the inner main bone toward the end of the middle rod due to gravity, thereby making it impossible for the anti-wear part at the end close to the ground to avoid rubbing against the middle rod at the pivotal part of the support bone and the inner main bone. Utility Model Content

[0006] The utility model aims to address the defects and shortcomings of the prior art and to provide an umbrella structure in which the user can fold the umbrella with the middle stick perpendicular to or parallel to the ground without having to place the middle stick perpendicular to the ground, and the anti-wear block can prevent the pivotal parts of the support bones and the inner main bones from rubbing against the middle stick.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an umbrella structure for preventing umbrella ribs from rubbing against a middle rod, comprising a middle rod, an upper nest arranged at the upper end of the middle rod, a lower nest arranged on the middle rod and located below the upper nest, an inner main bone whose upper end can be rotatably arranged on the upper nest and whose lower end is located on one side of the lower nest and is used to move closer to or away from the end of the middle rod around the upper nest when driven by an external force, a branch bone whose lower end can be rotatably arranged on the lower nest and whose upper end is rotatably connected to the middle part of the inner main bone, an anti-wear block rotatably arranged between the upper end of the branch bone and the middle part of the inner main bone, and also includes an end arranged at the middle part of the inner main bone away from the branch bone. An arc-shaped rod at the end of the middle rod, an arc-shaped groove opened on the anti-wear block and slidingly matched with the other end of the arc-shaped rod, a compression spring arranged between the anti-wear block and the other end of the arc-shaped rod and located in the arc-shaped groove for driving the anti-wear block to approach the end of the middle rod around the middle part of the inner main bone, and a limiting device arranged between the other end of the arc-shaped rod and the anti-wear block and located in the arc-shaped groove for limiting the anti-wear block when the compression spring drives the anti-wear block to approach the end of the middle rod around the middle part of the inner main bone to prevent the arc-shaped rod from being separated from the arc-shaped groove. The arc-shaped rod and the arc-shaped groove are arranged in an arc shape around the rotating end of the anti-wear block.

[0008] A further improvement is that the limit comprises arc-shaped limit grooves arc-shapedly opened on both sides of the arc-shaped rod, an arc-shaped sliding block with one end fixedly arranged on the anti-wear block and the other end slidingly matched with the arc-shaped limit groove and located in the arc-shaped groove.

[0009] A further improvement is that the anti-wear block is a rubber block.

[0010] A further improvement is that a buffer pad is provided at the middle portion of the inner main bone away from the end of the middle rod for buffering the anti-wear block when the anti-wear block moves around the middle portion of the inner main bone away from the end of the middle rod.

[0011] A further improvement is that the buffer pad is a sponge block.

[0012] A further improvement is that the outer surface of the middle rod is provided with a wear-resistant coating for improving the wear resistance of the middle rod.

[0013] A further improvement is that the wear-resistant coating is an epoxy resin coating.

[0014] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: when folding the umbrella, the anti-wear block is driven by the compression spring to go around the middle part of the inner main bone and approach the end of the middle rod. There is no need to make the middle rod perpendicular to the ground, so that the anti-wear block can be slightly protruded inward relative to the support bone and the inner main bone. The user can fold the umbrella with the middle rod perpendicular or parallel to the ground, so that the anti-wear block can avoid rubbing against the middle rod at the pivotal part of the support bone and the inner main bone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It corresponds to Figure 1 Enlarged view of part A.

[0018] Explanation of the reference numerals: middle rod 1, upper nest 2, lower nest 3, inner main bone 4, support bone 5, anti-wear block 6, arc rod 7, arc slot 8, compression spring 9, arc limit slot 10, arc slider 11, buffer pad 12. DETAILED DESCRIPTION

[0019] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0020] See also Figures 1 to 2 As shown, the technical solution adopted in this specific embodiment is: an umbrella structure for preventing umbrella ribs from rubbing against a middle rod 1, comprising a middle rod 1, an upper nest 2 arranged at the upper end of the middle rod 1, a lower nest 3 arranged on the middle rod 1 and located below the upper nest 2, an inner main bone 3 whose upper end can be rotatably arranged on the upper nest 2 and whose lower end is located on one side of the lower nest 3 and is used to move closer to or away from the end of the middle rod 1 around the upper nest 2 when driven by an external force, a support bone 5 whose lower end can be rotatably arranged on the lower nest 3 and whose upper end is rotatably connected to the middle part of the inner main bone 3, an anti-wear block 6 rotatably arranged between the upper end of the support bone 5 and the middle part of the inner main bone 3, and also comprising a The arc rod 7 at the end of the inner main bone 3, the arc groove 8 provided on the anti-wear block 6 and slidingly matched with the other end of the arc rod 7, the compression spring 9 arranged between the anti-wear block 6 and the other end of the arc rod 7 and located in the arc groove 8 for driving the anti-wear block 6 to approach the end of the middle rod 1 around the middle of the inner main bone 3, and the limiting device arranged between the other end of the arc rod 7 and the anti-wear block 6 and located in the arc groove 8 for limiting the anti-wear block 6 to prevent the arc rod 7 from being separated from the arc groove when the compression spring 9 drives the anti-wear block 6 to approach the end of the middle rod 1 around the middle of the inner main bone 3. The arc rod 7 and the arc groove 8 are arranged in an arc shape around the rotating end of the anti-wear block 6. A protrusion for connecting one end of the arc rod 7 is arranged on the inner main bone 3.

[0021] like Figure 2As shown, the limit includes an arc-shaped limit groove 10 opened on both sides of the arc rod 7, an arc-shaped slider 11 with one end fixed on the anti-wear block 6 and the other end slidingly matched with the arc-shaped limit groove 10 and located in the arc-shaped slot 8.

[0022] The anti-wear block 6 is a rubber block.

[0023] A buffer pad 12 is provided at the end of the middle portion of the inner main bone 3 away from the middle rod 1 for buffering the anti-wear block 6 when the anti-wear block 6 moves around the middle portion of the inner main bone 3 toward the end of the middle rod 1.

[0024] The buffer pad 12 is a sponge block, or can be a PP cotton block, a soft rubber block, or a rubber block.

[0025] The outer surface of the middle rod 1 is provided with a wear-resistant coating (not shown in the figure) for improving the wear resistance of the middle rod 1 .

[0026] The wear-resistant coating (not shown in the figure) is an epoxy resin coating.

[0027] The working principle of the utility model is as follows: when closing the umbrella, the anti-wear block 6 is driven by the compression spring 9 to move around the middle of the inner main bone 3 to approach the end of the middle rod 1, and the anti-wear block 6 can be made to protrude slightly inward relative to the support bone 5 and the inner main bone 3 without the middle rod 1 being perpendicular to the ground. The user can close the umbrella with the middle rod 1 perpendicular or parallel to the ground, so that the anti-wear block 6 can avoid the support bone 5 and the inner main bone 3 from rubbing against the middle rod 1 at the pivotal part; in the process of closing the umbrella, the anti-wear block 6 gradually contacts the middle rod 1, so that the anti-wear block 6 rotates around the middle of the inner main bone 3 toward the position of the inner main bone 3, and the arc rod 7 slides in the arc slot 8 so as to The rotation of the anti-wear block 6 is guided, and the buffer pad 12 can buffer the anti-wear block 6 when the anti-wear block 6 moves around the middle of the inner main bone 3 toward the end of the middle rod 1 to prevent the anti-wear block 6 from directly hitting the position of the inner main bone 3; when the umbrella body is unfolded, as the inner main bone 3 stretches outward around the upper nest 2 and moves away from the end of the middle rod 1, the spring force generated by the contraction of the compression spring 9 pushes the anti-wear part to reset, and when the compression spring 9 drives the anti-wear block 6 around the middle of the inner main bone 3 to approach the end of the middle rod 1, the arc-shaped limiting groove 10 and the arc-shaped sliding block 11 can limit the anti-wear block 6 to prevent the arc-shaped rod 7 from being separated from the arc-shaped groove.

[0028] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. As long as the components on the market can achieve the above functions of the utility model, they can be selected and applied as the umbrella structure of the anti-rib friction rod. Therefore, the model and other parameters of the components are not described in detail in this utility model. The contribution of the utility model lies in the scientific combination of various components.

[0029] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. An umbrella structure for preventing umbrella ribs from rubbing against a middle rod, comprising a middle rod, an upper nest arranged at the upper end of the middle rod, a lower nest arranged on the middle rod and located below the upper nest, an inner main bone whose upper end is rotatably arranged on the upper nest and whose lower end is located at one side of the lower nest and is used to move closer to or away from the end of the middle rod around the upper nest when driven by an external force, a support bone whose lower end is rotatably arranged on the lower nest and whose upper end is rotatably connected to the middle part of the inner main bone, and an anti-wear block rotatably arranged between the upper end of the support bone and the middle part of the inner main bone, characterized in that: It also includes an arc-shaped rod with one end arranged in the middle of the inner main bone away from the end of the middle rod, an arc-shaped groove opened on the anti-wear block and slidingly matched with the other end of the arc-shaped rod, a compression spring arranged between the anti-wear block and the other end of the arc-shaped rod and located in the arc-shaped groove for driving the anti-wear block to approach the end of the middle rod around the middle of the inner main bone, and a limiting device arranged between the other end of the arc-shaped rod and the anti-wear block and located in the arc-shaped groove for limiting the anti-wear block when the compression spring drives the anti-wear block to approach the end of the middle rod around the middle of the inner main bone to prevent the arc-shaped rod from being separated from the arc-shaped groove. The arc-shaped rod and the arc-shaped groove are arranged in an arc shape around the rotating end of the anti-wear block.

2. The umbrella structure for preventing ribs from rubbing against the middle rod according to claim 1, characterized in that: The limiter comprises arc-shaped limit grooves arc-shapedly opened on both sides of the arc-shaped rod, an arc-shaped sliding block with one end fixedly arranged on the anti-wear block and the other end slidingly matched with the arc-shaped limit groove and located in the arc-shaped groove.

3. The umbrella structure for preventing ribs from rubbing against the middle rod according to claim 1, characterized in that: The anti-wear block is a rubber block.

4. The umbrella structure for preventing ribs from rubbing against the middle rod according to claim 1, characterized in that: A buffer pad is arranged at the end of the middle part of the inner main bone away from the middle rod for buffering the anti-wear block when the anti-wear block moves around the middle part of the inner main bone away from the end of the middle rod.

5. The umbrella structure for preventing ribs from rubbing against the middle rod according to claim 4, characterized in that: The buffer pad block is a sponge block.

6. The umbrella structure for preventing ribs from rubbing against the middle rod according to claim 1, characterized in that: The outer surface of the middle rod is provided with a wear-resistant coating for improving the wear resistance of the middle rod.

7. The umbrella structure for preventing ribs from rubbing against the middle rod according to claim 6, characterized in that: The wear-resistant coating is an epoxy resin coating.

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