A foldable support leg

Abstract

This utility model discloses a foldable support leg, comprising a support leg, a support foot with mutual limiting support function, a locking fastening component, and an elastic limiting component. The support leg and support foot are movably connected by the locking fastening component. The elastic limiting component is used to limit and fix the support foot in its unfolded state. The locking fastening component includes a shouldered nut post and a locking screw. Both the support leg and support foot are provided with shaft holes, and the shouldered nut post passes through the shaft holes. This utility model, by setting a fixing component, allows the support foot to flexibly rotate and fold relative to the support leg, significantly reducing the space occupied after folding, reducing logistics costs, and also facilitating quick assembly and disassembly. The elastic limiting component, with a V-shaped spring plate providing elastic force, allows the ball-head limiting post to stably engage with the limiting hole and fixing hole, forming a reliable lock, ensuring the stability of the fence and advertising frame structure, and reducing safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of support leg technology, specifically to a foldable support leg. Background Technology

[0002] During the organization of sporting events, construction barriers and advertising racks are common and important facilities used to demarcate event areas and display commercial advertisements.

[0003] Sports events require the rapid setup and dismantling of barriers and advertising frames to adapt to different event procedures and venue layouts. However, traditional support legs are mostly fixed structures that cannot be folded and stored, taking up a lot of space during transportation, increasing logistics costs and transportation difficulties. Furthermore, on-site assembly is time-consuming, affecting event preparation efficiency. In addition, the existing support leg components have structural design flaws, and frequent disassembly and reassembly over a long period can easily lead to component wear and loosening, reducing overall lifespan and increasing maintenance and replacement costs. Therefore, there is an urgent need to design a foldable support leg to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a foldable support leg to address the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A foldable support leg comprises a support leg, a support foot with mutual limiting support function, a locking fastening assembly, and an elastic limiting assembly. The support leg and the support foot are movably connected through the locking fastening assembly. The support foot can rotate relative to the support leg. The elastic limiting assembly is used to limit and fix the support foot in its unfolded state. The locking fastening assembly includes a shouldered nut post and a locking screw. Both the support leg and the support foot are provided with shaft holes, and the shouldered nut post passes through the shaft holes.

[0007] In a preferred embodiment of this utility model, the elastic limiting component includes a V-shaped spring sheet and a ball-head limiting post. The V-shaped spring sheet is disposed inside the support leg, and the ball-head limiting post is disposed on the outer walls on both sides of the open end of the V-shaped spring sheet.

[0008] In a preferred embodiment of this utility model, the support foot is provided with mutually limiting support plates, the support foot is provided with limiting holes, the shaft hole is located directly below the limiting holes, and a ball-head limiting post is engaged in the limiting holes.

[0009] In a preferred embodiment of this utility model, a fixing hole is provided on the support leg, the fixing hole is parallel to the central axis of the limiting hole, and the ball-head limiting post is inserted into the fixing hole.

[0010] In a preferred embodiment of this utility model, the shouldered nut post has a cylindrical structure, and both ends of the shouldered nut post are provided with locking screws, which are threaded onto the shouldered nut post.

[0011] In a preferred embodiment of this utility model, the mutually limiting support plate and the support foot are integrally formed.

[0012] In a preferred embodiment of this utility model, the included angle between the supporting foot and the supporting leg is 90°-180°.

[0013] In the above technical solution, the foldable support leg provided by this utility model has the following advantages:

[0014] (1) By setting a locking fastening component, the support leg and the support foot can be movably connected. The support foot can be flexibly rotated and folded relative to the support leg with damping. After folding, the overall space occupied is greatly reduced, reducing logistics space costs, and also facilitating quick assembly and disassembly.

[0015] (2) By setting up an elastic limiting component, the V-shaped spring provides elastic force, so that the ball head limiting post can be stably inserted into the limiting hole and the fixing hole to form a reliable lock. This effectively avoids the displacement and folding of the support leg caused by external forces such as personnel walking or equipment collisions at the sports event site, ensuring the stability of the fence and advertising frame structure and reducing safety hazards.

[0016] (3) By setting up locking fastening components, the shoulder nut column, locking screw and other components adopt an adaptive structure, and the connection of components takes into account both flexibility and stability, reducing wear caused by frequent disassembly and assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram showing the unfolded structure of a foldable support leg according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the folding structure of a foldable support leg according to an embodiment of the present invention.

[0020] Figure 3 This is a partial cross-sectional view of the support leg structure provided in an embodiment of the foldable support leg of this utility model.

[0021] Figure 4This is a cross-sectional view of the support leg structure provided in an embodiment of the foldable support leg of this utility model.

[0022] Figure 5 This is a perspective view of the support foot structure provided for an embodiment of a foldable support leg according to the present invention.

[0023] Figure 6 This is a perspective view of the elastic limiting component structure provided in an embodiment of a foldable support leg according to the present invention.

[0024] 1. Support leg; 11. Fixing hole; 2. Support foot; 21. Mutually limiting support plate; 22. Limiting hole; 23. Shaft hole; 3. Locking fastening assembly; 31. Shoulder nut post; 32. Locking screw; 4. Elastic limiting assembly; 41. V-shaped spring; 42. Ball head limiting post. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-6 As shown in the figure, the foldable support leg provided in this embodiment of the utility model comprises a support leg 1, a support foot 2 with mutual limiting support function, a locking fastening component 3 and an elastic limiting component 4. The support leg 1 and the support foot 2 are connected by the locking fastening component 3 with damping. The support foot 2 can rotate relative to the support leg 1. The elastic limiting component 4 is used to limit and fix the support foot 2 in the unfolded state. The locking fastening component 3 includes a shoulder nut post 31 and a locking screw 32. Both the support leg 1 and the support foot 2 are provided with shaft holes 23, and the shoulder nut post 31 passes through the shaft hole 23.

[0027] In this embodiment, the support leg 1 has a square cross-section. The support leg 1 and the support foot 2 are connected by a damped locking fastening assembly 3. The support foot 2 can rotate relative to the support leg 1. The elastic limiting assembly 4 is used to limit and fix the support foot 2 in the unfolded state. The locking fastening assembly 3 includes a shoulder nut post 31 and a locking screw 32. Both the support leg 1 and the support foot 2 are provided with shaft holes 23. The shoulder nut post 31 passes through the shaft hole 23 to fix the support foot 2 on the support leg 1. The shoulder nut post 31 is provided with locking screws 32 at both ends to limit and fix the shoulder nut post 31 axially.

[0028] In this embodiment, the elastic limiting component 4 includes a V-shaped spring sheet 41 and a ball-head limiting post 42. The V-shaped spring sheet 41 is made of 65Mn spring steel, which has excellent elasticity and fatigue strength, and can maintain good elastic performance during long-term use. The ball-head limiting post 42 and the V-shaped spring sheet 41 are integrally formed. The ball head part of the ball-head limiting post 42 is polished and has a smooth surface, which facilitates smooth engagement and disengagement in the limiting hole 22 and the fixing hole 11. The V-shaped spring sheet 41 is set on the support. Inside leg 1, ball-head limiting post 42 is set on the outer walls on both sides of the open end of V-shaped spring sheet 41. When the support leg 2 rotates relative to the support leg 1, the ball-head limiting post 42 will be squeezed by the inner wall of the support leg 2, causing the V-shaped spring sheet 41 to undergo elastic deformation. When the support leg 2 rotates to the unfolded state, the ball-head limiting post 42 is inserted into the limiting hole 22 under the elastic action of the V-shaped spring sheet 41, and at the same time, the other end is also inserted into the limiting hole 22 of the support leg 2, so as to limit and fix the support leg 2 in the unfolded state.

[0029] In this embodiment, the support foot 2 is provided with mutually limiting support plates 21, and the support foot 2 is provided with limiting holes 22. The limiting holes 22 are circular and their positions correspond to the ball head limiting post 42. When the support foot 2 is extended to a specific angle, the ball head limiting post 42 can be accurately engaged in the limiting hole 22 to limit the support foot 2. The shaft hole 23 is located directly below the limiting hole 22, and the diameter of the shaft hole 23 matches the diameter of the shoulder nut post 31. The ball head limiting post 42 is engaged in the limiting hole 22.

[0030] In this embodiment, a fixing hole 11 is provided on the support leg 1. The fixing hole 11 is a circular through hole with a diameter that matches the diameter of the ball head of the ball head limiting post 42. The hole wall is smooth, which facilitates the smooth insertion of the ball head limiting post 42 into it. The fixing hole 11 is parallel to the central axis of the limiting hole 22, and the ball head limiting post 42 is inserted into the fixing hole 11.

[0031] In this embodiment, the shouldered nut post 31 is a cylindrical structure. The shouldered nut post 31 provides a rotation center for the support foot 2. Both ends of the shouldered nut post 31 are provided with locking screws 32. The locking screws 32 are threaded onto the shouldered nut post 31, ensuring a tight and reliable connection while the support foot and support leg can produce a damped rotation effect.

[0032] In this embodiment, the mutually limiting support plate 21 and the support foot 2 are an integral structure. This design not only ensures the firmness of the connection between the two and avoids the loosening problem that may occur during later assembly, but also restricts the rotation angle of the support foot 2.

[0033] In this embodiment, the angle between the support leg 2 and the support leg 1 is 90°-180°. When the angle is 90°, the two support legs 2 are fully extended, maximizing the support area. Simultaneously, the mutual limiting support plates of the support legs provide mutual support, allowing them to support each other and simultaneously adjust the verticality between the support legs and the support legs when the support legs are open. This results in optimal overall structural stability and makes the support capacity of the entire support system more reliable and robust. As the angle gradually increases to 180°, the support leg 2 and the support leg 1 become more parallel, minimizing the space occupied by the support structure and facilitating storage and transportation.

[0034] Working steps: 1. The worker holds the support leg 1 and rotates the folded support foot 2 around the shoulder nut column 31, so that the support foot 2 rotates from the folded state that is close to the support leg 1 to the direction away from the support leg 1, until the angle between the support foot 2 and the support leg 1 reaches 90°.

[0035] 2. As the support leg 2 rotates and unfolds, when the limiting hole 22 on the support leg 2 aligns with the fixing hole 11 on the support leg 1, the elastic force of the V-shaped spring piece 41 in the elastic limiting component 4 pushes the ball head limiting post 42, causing one end of the ball head limiting post 42 to be inserted into the limiting hole 22 of the support leg 2.

[0036] 3. If it is necessary to dismantle or store the fence or advertising frame, the staff press the ball head limiting post 42 to compress the V-shaped spring 41, so that the ball head limiting post 42 exits from the limiting hole 22 of the support leg 2 and the fixing hole 11 of the support leg 1, and the limiting lock is released.

[0037] 4. After releasing the limit, rotate the support foot 2 in the opposite direction so that it rotates around the shoulder nut column 31 and gradually fits into the support leg 1, restoring the folded storage state. At this time, the locking screws 32 at both ends of the shoulder nut column 31 continue to ensure the stability of the shoulder nut column 31. After folding, the whole can be stored, which is convenient for the quick turnover of sports event venues and easy to use before the next use.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A foldable support leg, consisting of a support leg (1), a support foot (2) with mutual limiting support function, a locking fastening assembly (3) and an elastic limiting assembly (4), characterized in that, The support leg (1) and the support foot (2) are movably connected by a locking fastening assembly (3). The support foot (2) can rotate relative to the support leg (1). The elastic limiting assembly (4) is used to limit and fix the support foot (2) in the unfolded state. The locking fastening assembly (3) includes a shoulder nut post (31) and a locking screw (32). Both the support leg (1) and the support foot (2) are provided with shaft holes (23). The shoulder nut post (31) passes through the shaft hole (23).

2. A foldable support leg according to claim 1, wherein, The elastic limiting component (4) includes a V-shaped spring sheet (41) and a ball-head limiting post (42). The V-shaped spring sheet (41) is disposed inside the support leg (1), and the ball-head limiting post (42) is disposed on the outer walls on both sides of the opening end of the V-shaped spring sheet (41).

3. A foldable support leg according to claim 1, wherein, The support foot (2) is provided with mutually limiting support plates (21), and the support foot (2) is provided with limiting holes (22). The shaft hole (23) is located directly below the limiting hole (22), and a ball-head limiting post (42) is engaged in the limiting hole (22).

4. According to the claims 2 The aforementioned foldable support leg is characterized in that, The support leg (1) has a fixing hole (11) which is parallel to the central axis of the limiting hole (22). The ball head limiting post (42) is inserted into the fixing hole (11).

5. The foldable support leg of claim 1 wherein, The shouldered nut post (31) has a cylindrical structure, and both ends of the shouldered nut post (31) are provided with locking screws (32), which are threaded onto the shouldered nut post (31).

6. A foldable support leg according to claim 3, wherein, The mutually limiting support plate (21) and the support foot (2) are integrally formed.

7. The foldable support leg of claim 1 wherein, The angle between the supporting foot (2) and the supporting leg (1) is 90°-180°.

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