A stand seat angle fine adjustment device

Abstract

The utility model relates to the technical field of seat, concretely discloses a stand seat angle fine adjustment device, which comprises a bottom plate, a universal ball head is arranged at the center of the upper end face of the bottom plate, a seat is fixedly connected to the end of the universal ball head away from the bottom plate, the universal ball head is used for realizing multi-direction rotation of the seat, four adjusting assemblies are arranged at the lower end of the seat, and the four adjusting assemblies are arranged in a circular array around the universal ball head; the adjusting assembly comprises a connecting rod, baffle plates are fixedly connected to the two ends of the connecting rod, the lower end face of the baffle plate is fixedly connected to the upper end face of the bottom plate, two movable plates are slidably connected to the outer wall of the connecting rod, a spring is arranged between the opposite faces of the two movable plates, the two ends of the spring are fixedly connected to the movable plates on the two sides respectively, springs are arranged between the opposite faces of the two movable plates and the baffle plate, a connecting plate is hingedly connected to the upper end of the movable plate, and the end of the connecting plate opposite to the movable plate is hingedly connected to the lower end face of the seat; the utility model is mainly used for solving the problems of poor comfort and lack of stability of the seat.

Description

Technical Field

[0001] This utility model belongs to the field of seating technology, specifically relating to a device for fine-tuning the angle of a grandstand seat. Background Technology

[0002] Grandstand seating is designed specifically for audience seating in large event venues such as stadiums, theaters, auditoriums, and exhibition halls. Its core function is to provide audiences with a safe, comfortable, and orderly viewing experience.

[0003] Traditional grandstand seating has revealed core problems over long-term use, including limited functionality and poor adaptability to different performance scenarios. Early designs primarily featured fixed seats with metal frames and hard plastic seats. While simple in structure, these lacked ergonomic considerations, leading to fatigue among audience members during extended use. Furthermore, traditional seating cannot be adjusted to accommodate the user's posture in various performance formats, such as stage plays and concerts.

[0004] Therefore, a fine-tuning device for the angle of the grandstand seats is proposed to solve the problems of poor seat comfort and lack of stability. Utility Model Content

[0005] The purpose of this invention is to address the problems mentioned in the background art by providing an existing grandstand seat angle fine-tuning device.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a grandstand seat angle fine adjustment device, including a base plate, a universal ball head is provided at the center of the upper surface of the base plate, the universal ball head includes a main rod, the lower end of the main rod is fixedly connected to the upper surface of the base plate, a ball head is fixedly connected to the upper end of the main rod, a ball cup is nested in the outer wall of the ball head, the upper end of the ball cup is fixedly connected to the lower end of the seat, and four adjustment components are provided at the lower end of the seat;

[0007] The adjustment assembly includes a connecting rod with baffles fixedly connected to both ends. The lower end face of the baffles is fixedly connected to the upper end face of the base plate. Two movable plates are slidably connected to the outer wall of the connecting rod. A first spring is provided between the opposing surfaces of the two movable plates. The first spring is nested in the middle section of the outer wall of the connecting rod. Both ends of the first spring are fixedly connected to the movable plates on both sides. A second spring is provided between the opposing surfaces of the two movable plates and the baffles. The two sides of the second spring are fixedly connected to the movable plates and the baffles on both sides. A connecting plate is hinged to the upper end of the movable plate. One end of the connecting plate relative to the movable plate is hinged to the lower end face of the seat.

[0008] This utility model further illustrates that the four adjustment components are arranged in a circular pattern around the universal ball head.

[0009] The present invention further explains that four springs are fixedly connected to the upper surface of the base plate around the universal ball head, and the springs are arranged in a circle around the universal ball head.

[0010] This utility model further illustrates that the shape and size of the first spring are adapted to the connecting rod, the first spring is nested in the outer wall of the connecting rod, and the first spring slides in cooperation with the outer wall of the connecting rod.

[0011] This utility model further illustrates that the shape and size of the second spring are adapted to the connecting rod, the second spring is nested in the outer wall of the connecting rod, and the second spring slides in cooperation with the outer wall of the connecting rod.

[0012] This invention further illustrates that any two adjacent adjustment components are perpendicular to each other, and the spring is located between the two adjacent adjustment components.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] Angle Adjustment Enhances Comfort: The omnidirectional ball joint design provides a superior user experience. This design allows the seat to be tilted at multiple angles, fully meeting the diverse needs of viewers in different viewing scenarios. Whether wanting to get closer to the stage for a more immersive experience or adjusting the angle for a wider view, it's easily achieved, greatly enhancing the comfort and flexibility of the viewing experience. The unique adjustment structure plays a crucial role in the seat angle adjustment process. It provides stable spring support, and when the user's center of gravity shifts with body movements during viewing, the spring force quickly balances the external force. This feature not only keeps the seat stable during adjustment, preventing wobbling or instability, but also provides the user with counter-support, further ensuring seat comfort and allowing viewers to fully immerse themselves in the viewing experience.

[0015] Multi-level support enhances stability: Any two adjacent adjustment components are perpendicular to each other, with the spring cleverly positioned between them. This ingenious layout offers significant advantages, ensuring more even force distribution across the adjustment components in all directions, thus enabling more precise adjustment of the seat's horizontal offset angle. When the seat is subjected to external forces in different directions, the adjacent and perpendicular adjustment components work together quickly to improve the effectiveness of fine-tuning the seat angle. Simultaneously, this layout ensures the stability of the support, providing a safe and reliable seating environment for spectators, allowing them to enjoy the viewing experience with peace of mind. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a front view of an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0020] In the diagram: 1. Base plate; 2. Seat; 301. Connecting rod; 302. Baffle; 303. Movable plate; 304. Spring No. 1; 305. Spring No. 2; 306. Connecting plate; 401. Main rod; 402. Ball head; 403. Ball cup; 5. Spring. Detailed Implementation

[0021] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, the grandstand seat angle fine-tuning device of this embodiment includes a base plate 1. A universal ball joint is provided at the center of the upper surface of the base plate 1. The universal ball joint includes a main rod 401. The lower surface of the main rod 401 is fixedly connected to the upper surface of the base plate 1. A ball head 402 is fixedly connected to the upper end of the main rod 401. A ball cup 403 is nested on the outer wall of the ball head 402. The upper surface of the ball cup 403 is fixedly connected to the lower surface of the seat 2. Four adjustment components are provided at the lower end of the seat 2.

[0023] The universal ball joint located at the center of the upper surface of the base plate 1 is the core component enabling the multi-directional rotation of the seat 2. This unique design allows the ball joint 402 to rotate flexibly in all directions and at multiple angles within the ball bowl 403. Audiences have diverse needs regarding the angle of the seat 2 depending on their viewing scenario. For example, when watching a large-scale stage play, audiences may want the seat 2 to tilt forward at a certain angle to enjoy the actors' brilliant performances and subtle expressions more closely; while watching sporting events, especially football matches, audiences may want the seat 2 to adjust backward for a wider field of vision, ensuring they don't miss any exciting moments on the field. The multi-directional rotation characteristic of the universal ball joint allows the seat 2 to easily meet these different angle requirements, greatly improving the comfort and flexibility of the audience's viewing experience, allowing them to freely adjust the angle of the seat 2 according to their preferences and actual needs.

[0024] The adjustment assembly includes a connecting rod 301, with baffles 302 fixedly connected to both ends of the connecting rod 301. The lower end face of the baffles 302 is fixedly connected to the upper end face of the base plate 1. Two movable plates 303 are slidably connected to the outer wall of the connecting rod 301. A first spring 304 is provided between the opposing surfaces of the two movable plates 303. The first spring 304 is nested in the middle section of the outer wall of the connecting rod 301. The two ends of the first spring 304 are fixedly connected to the movable plates 303 on both sides respectively. A second spring 305 is provided between the opposing surfaces of the two movable plates 303 and the baffles 302. The two sides of the second spring 305 are fixedly connected to the movable plates 303 and the baffles 302 respectively. A connecting plate 306 is hinged to the upper end of the movable plate 303. One end of the connecting plate 306 relative to the movable plate 303 is hinged to the lower end face of the seat 2.

[0025] The adjustment mechanism plays a crucial role in ensuring the comfort and stability of seat 2. When a user's center of gravity shifts due to body movements while viewing an object, it generates external forces in different directions on seat 2. For example, when the user leans forward, seat 2 experiences a forward pressure. Firstly, spring 5 compresses to absorb most of this pressure, while simultaneously generating a supporting force to balance the external force and prevent seat 2 from collapsing due to sudden force. At the same time, the adjustment mechanism at the lower end of the corresponding position activates. This pressure is transmitted through connecting plate 306 to movable plate 303, causing movable plate 303 to slide along connecting rod 301. At this time, spring 304 and spring 305 will be compressed and stretched to generate elastic force, which will prevent the movable plate 303 from sliding excessively and play an auxiliary support role. The two adjustment components perpendicular to the adjustment components at the lower end of the corresponding position will provide support from the side to further balance the external force and keep the seat 2 stable during the adjustment process. This reverse support force allows the user to feel the stability and comfort of the seat 2, further improving the comfort of using the seat 2 and effectively preventing the seat 2 from shaking or becoming unstable.

[0026] The universal ball joint includes a main rod 401, the lower end of which is fixedly connected to the upper end of the base plate 1. A ball head 402 is fixedly connected to the upper end of the main rod 401. A ball cup 403 is nested on the outer wall of the ball head 402. The upper end of the ball cup 403 is fixedly connected to the lower end of the seat 2.

[0027] The universal ball joint located at the center of the upper surface of the base plate 1 is the core component enabling the multi-directional rotation of the seat 2. This unique design allows the ball joint 402 to rotate flexibly in all directions and at multiple angles within the ball bowl 403. Viewers have diverse needs regarding the angle of the seat 2 depending on their viewing scenario. For example, when watching a large-scale stage play, viewers may want the seat 2 to tilt forward at a certain angle to enjoy the actors' brilliant performances and subtle expressions more closely; while watching sporting events, especially football matches, viewers may want the seat 2 to adjust backward for a wider field of vision, ensuring they don't miss any exciting moments on the field. The multi-directional rotation characteristic of the universal ball joint allows the seat 2 to easily meet these different angle requirements, greatly improving the comfort and flexibility of the viewing experience, allowing viewers to freely adjust the angle of the seat 2 according to their preferences and actual needs.

[0028] The four adjustment components are arranged in a circle around the omnidirectional ball joint.

[0029] Four springs 5 ​​are fixedly connected to the upper end of the base plate 1 around the universal ball head. The springs 5 ​​are arranged in a circle around the universal ball head.

[0030] Any two adjacent adjustment components are perpendicular to each other, and spring 5 is located between the two adjacent adjustment components.

[0031] In this device, four adjustment components are arranged in a circle around the universal ball joint, with any two adjacent adjustment components perpendicular to each other, and spring 5 located between two adjacent adjustment components. This unique layout has significant mechanical advantages, enabling the adjustment components to be subjected to more uniform force in all directions.

[0032] The shape and size of the first spring 304 are adapted to the connecting rod 301. The first spring 304 is nested in the outer wall of the connecting rod 301, and the first spring 304 slides in contact with the outer wall of the connecting rod 301.

[0033] The shape and size of the second spring 305 are adapted to the connecting rod 301. The second spring 305 is nested in the outer wall of the connecting rod 301, and the second spring 305 slides in contact with the outer wall of the connecting rod 301.

[0034] Working Principle: In actual use, because a universal ball joint is fixedly connected under the seat 2, the user can tilt freely while watching a performance or game. When the user's body tilts while watching a performance, and the seat 2 is subjected to external force, the adjacent and vertical adjustment components can quickly work together. Taking the user tilting to the right and forward on the seat 2 as an example, the spring 5 on the lower right side of the seat 2 will absorb the main pressure, and the right and front adjustment components will be subjected to force simultaneously. The movable plate 303 of the right adjustment component will slide to the right, and the movable plate 303 of the front adjustment component will slide forward. Springs 304 and 305 will be compressed or stretched, generating corresponding elastic force to provide support for the user. These adjustment components influence and constrain each other through the elastic force of the springs, forming an organic whole. They work together to cope with external forces and achieve precise adjustment of the horizontal offset angle of the seat 2 through mutual cooperation, improving the effect of fine-tuning the seat 2 angle. Meanwhile, this collaborative working method also ensures the stability of the support. Since each adjustment component can automatically adjust according to the force, it always maintains effective support for the seat 2. When the user leans to the right and stands up, the spring 5 will immediately rebound. At this time, the adjustment components on the right and front will restrain the rebound force of the spring 5, so that the seat 2 will not tilt or shake during use, providing the audience with a safe and reliable seat 2 usage environment and further improving the user experience of the device.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grandstand seat angle fine-tuning device, comprising a base plate (1), characterized in that: A universal ball joint is provided at the center of the upper surface of the base plate (1). The universal ball joint includes a main rod (401). The lower surface of the main rod (401) is fixedly connected to the upper surface of the base plate (1). A ball head (402) is fixedly connected to the upper end of the main rod (401). A ball cup (403) is nested on the outer wall of the ball head (402). The upper surface of the ball cup (403) is fixedly connected to the lower surface of the seat (2). Four adjustment components are provided at the lower end of the seat (2). The adjusting assembly includes a connecting rod (301), with baffles (302) fixedly connected to both ends of the connecting rod (301). The lower end face of the baffles (302) is fixedly connected to the upper end face of the base plate (1). Two movable plates (303) are slidably connected to the outer wall of the connecting rod (301). A first spring (304) is provided between the opposing faces of the two movable plates (303). The first spring (304) is nested in the middle section of the outer wall of the connecting rod (301). 304) Both ends are fixedly connected to the movable plates (303) on both sides respectively. A second spring (305) is provided between the opposite surfaces of the two movable plates (303) and the baffle (302). The two sides of the second spring (305) are fixedly connected to the movable plate (303) and the baffle (302) respectively. A connecting plate (306) is hinged to the upper end of the movable plate (303). One end of the connecting plate (306) relative to the movable plate (303) is hinged to the lower end surface of the seat (2).

2. The grandstand seat angle fine-tuning device according to claim 1, characterized in that: The four adjustment components are arranged in a circle around the universal ball head.

3. The grandstand seat angle fine-tuning device according to claim 1, characterized in that: Four springs (5) are fixedly connected to the upper end face of the base plate (1) around the universal ball head. The springs (5) are arranged in a circle around the universal ball head.

4. The grandstand seat angle fine-tuning device according to claim 2, characterized in that: The shape and size of the first spring (304) are adapted to the connecting rod (301). The first spring (304) is nested in the outer wall of the connecting rod (301), and the first spring (304) slides in cooperation with the outer wall of the connecting rod (301).

5. The grandstand seat angle fine-tuning device according to claim 1, characterized in that: The shape and size of the second spring (305) are adapted to the connecting rod (301). The second spring (305) is nested in the outer wall of the connecting rod (301) and slides in cooperation with the outer wall of the connecting rod (301).

6. The grandstand seat angle fine-tuning device according to claim 3, characterized in that: Any two adjacent adjustment components are perpendicular to each other, and the spring (5) is located between the two adjacent adjustment components.

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