Sunshade supporting and fixing structure

Abstract

The utility model relates to the field of a sunshade, in particular to a sunshade supporting and fixing structure, which comprises a sunshade, the sunshade is provided with a vertical rod, a top umbrella disc is arranged at the top of the vertical rod, umbrella ribs are hinged on the umbrella disc, a supporting rod is hinged in the middle of the umbrella ribs, the supporting rod is hinged on a lower umbrella disc, and the lower umbrella disc is arranged on the vertical rod in a penetrating manner. A chain wheel is meshed with the lower end of the chain, a handle is fixed to one side of the chain wheel, the chain wheel further comprises a limiting mechanism for limiting one-way rotation of the chain wheel, and the chain is a one-way bent chain and arranged on the back of the vertical rod. The chain type structure is adopted, reversing is avoided, and the lower umbrella disc is supported by directly acting upwards; the structure is simple, the acting force is simple, jamming is not prone to occurring, and rope jamming is avoided. The rigid chain is small in compressibility, the lower umbrella disc is directly pressed on the chain in the using process, and the situation that the lower umbrella disc continuously acts due to the elasticity of a traction component is avoided.

Description

Technical Field

[0001] The utility model relates to the field of sunshade awnings, in particular to a supporting and fixing structure of the sunshade awnings. Background Art

[0002] The existing awning support structure usually uses ropes, such as a parasol lifting rope installation structure with the publication number: CN220756770U, which uses a pulley to change the direction of the upper end of the rope to pull the lower umbrella plate upward. This scheme has existed for many years. The rope is easily worn and damaged after repeated pulling, and the rope is not kept tight for a long time. When the wind blows, the umbrella surface rises and the rope is loose and easily gets stuck on the outside of the pulley, causing it to get stuck. In addition, the rope is easily fatigued and broken even if it is made of metal material after being bent, straightened and tightened for a long time. On the other hand, the thin rope has a certain elasticity, which makes it easy to over-tighten when tightening (that is, after the rope is tightened after being fixed to the top, the tension force still acts on the umbrella plate), causing the umbrella plate to receive additional force for a long time, reducing the life of the umbrella plate. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies of the existing sunshade supporting and fixing structure, the utility model provides a sunshade supporting and fixing structure which has a simple structure, a long service life and is not prone to wear.

[0004] The technical solution adopted by the utility model is: a sunshade supporting and fixing structure, including a sunshade, the sunshade has a vertical pole, the top of the vertical pole is provided with a top umbrella plate, the umbrella plate is hinged with an umbrella rib, the middle part of the umbrella rib is hinged with a support rod, the support rod is hinged on a lower umbrella plate, the lower umbrella plate is passed through the vertical pole, and is characterized in that: the lower umbrella plate is hinged with a chain, the chain is meshed with a sprocket at the lower end, a handle is fixed to one side of the sprocket, the sprocket also includes a limiting mechanism for limiting the unidirectional rotation of the sprocket, the chain is a unidirectional bending chain, and the chain is arranged with its back against the vertical pole.

[0005] As one of the preferred solutions for the supporting and fixing structure of a sunshade, a groove for embedding the chain is also provided on the top.

[0006] Furthermore, the bottom edge of the groove is an inclined surface.

[0007] As one of the preferred solutions for the supporting and fixing structure of the awning, the limiting mechanism is a ratchet and a pawl, the ratchet and the sprocket are arranged concentrically, and the pawl is buckled on the ratchet.

[0008] As one of the preferred solutions for the awning support and fixing structure, it also includes a pressing rod fixed on the pawl, and the pressing rod is tilted toward the front side so that the center of gravity of the pawl is located on the front side to ensure that the pawl is buckled on the ratchet when there is no force.

[0009] The utility model has the following beneficial effects: the chain structure is adopted to avoid reversal, and the lower umbrella plate is directly supported upward; the structure is simple, the force is simple, and it is not easy to get stuck, eliminating the solution of rope getting stuck. The rigid chain has low compression, and the lower umbrella plate is directly pressed on the chain during use, and the elasticity of the pulling component will not cause the lower umbrella plate to continue to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of the utility model.

[0011] Figure 2 It is a schematic diagram of the ratchet part of the utility model.

[0012] Figure 3 This is a schematic diagram of the chain used in the present utility model.

[0013] Among them: 1. vertical pole; 2. top umbrella plate; 3. umbrella ribs; 4. support pole; 5. lower umbrella plate; 6. chain; 7. sprocket; 81. ratchet; 82. pawl; 84. handle; 11. groove; 12. inclined plane; 83. pressing rod; 61. back plate; 9. bracket. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the scheme of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the listing of all technical features in the dependent claims in a certain embodiment does not mean that this part is a necessary technical feature. This embodiment is for the purpose of simply and clearly describing the technical scheme. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The utility model is further described below in conjunction with specific drawings.

[0015] like Figures 1 to 3 As shown in Example 1, a sunshade support and fixing structure includes a sunshade, the sunshade has: the top is provided with a top umbrella plate, the umbrella plate is hinged with umbrella ribs, the middle of the umbrella ribs is hinged with a support rod, the support rod is hinged on a lower umbrella plate, the lower umbrella plate is passed through the upper part, and is characterized in that: the lower umbrella plate is hinged with a chain, the chain is meshed with a sprocket at the lower end, a handle is fixed on one side of the sprocket, the sprocket also includes a limiting mechanism for limiting the unidirectional rotation of the sprocket, the chain is a unidirectional bending chain, and the chain is back-to-back arranged. The limiting mechanism is a ratchet and a pawl, the ratchet and the sprocket are concentrically arranged and fixed on a bracket, the bracket is fixed on it, and the pawl is buckled on the ratchet. The chain here is usually called a backboard chain, which is usually used for a window opener. The limit on one side of the backboard does not allow the chain to bend, and the backboard is arranged close to it so that it will not bend when extended.

[0016] Embodiment 2: This embodiment is an improvement based on embodiment 1, and a groove for embedding the chain is further provided on the upper surface.

[0017] In Example 3, in order to ensure that the lower end of the chain slides out smoothly and to avoid excessive resistance caused by chain bending, the lower edge of the groove is an inclined surface.

[0018] Embodiment 4, this embodiment is an improvement based on embodiment 1 or 2, and also includes a pressing rod fixed on the pawl, and the pressing rod is tilted toward the front side so that the center of gravity of the pawl is located on the front side to ensure that the pawl is buckled on the ratchet when there is no force.

Claims

1. A sunshade support and fixing structure, comprising a sunshade, the sunshade having a vertical pole, a top umbrella plate on the top of the vertical pole, an umbrella rib hinged on the umbrella plate, a support rod hinged on the middle of the umbrella rib, the support rod hinged on a lower umbrella plate, the lower umbrella plate is passed through the vertical pole, characterized in that: The lower umbrella plate is hinged with a chain, and a sprocket is meshed with the lower end of the chain. A handle is fixed to one side of the sprocket. The sprocket also includes a limiting mechanism for limiting the unidirectional rotation of the sprocket. The chain is a unidirectional bending chain, and the chain is arranged with its back against the vertical pole.

2. The sunshade awning support and fixing structure according to claim 1, characterized in that: The vertical rod is also provided with a groove for embedding the chain.

3. The sunshade support and fixing structure according to claim 2, characterized in that: The lower edge of the groove is an inclined surface.

4. The sunshade support and fixing structure according to claim 1, characterized in that: The limiting mechanism comprises a ratchet and a pawl, the ratchet and the sprocket are arranged concentrically, and the pawl is buckled on the ratchet.

5. The sunshade awning support and fixing structure according to claim 4, characterized in that: It also includes a pressing rod fixed on the pawl, and the pressing rod is tilted toward the front side so that the center of gravity of the pawl is located at the front side to ensure that the pawl is buckled on the ratchet when there is no force.

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