Angle-adjustable table board structure and seat

Abstract

An adjustable tabletop structure and seat are disclosed. The adjustable tabletop structure includes a tabletop body, a linkage component, and a drive component. The linkage component includes a base, a first link, and a second link. The first ends of both the first and second links are hinged to the tabletop body, and the second ends of both links are hinged to the base. The drive component is located on the tabletop body, and its output end is connected to the first end of the first link, driving the first link to rotate and adjust the tilt angle of the tabletop body. In this application, the tilt angle of the tabletop body can be dynamically adjusted according to the seat back position by the drive component, ensuring that the tabletop body remains horizontal, preventing items from slipping, and improving ease of use and safety. Furthermore, placing the drive component on the tabletop body simplifies the internal structure of the seat, achieving automatic adjustment of the tabletop body's tilt angle without occupying seat space, facilitating installation and use.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, specifically to an angle-adjustable table structure and seat. Background Technology

[0002] Car seatback tray tables, as practical in-vehicle accessories, are widely installed on the back of the front seats, providing rear passengers with a supported surface for working, eating, or placing items. They can accommodate food, electronic devices, and daily necessities, significantly improving convenience and comfort during the journey. When not in use, the tray table folds and stores itself close to the seat back via a linkage assembly to save space; when passengers need to use it, the linkage assembly unfolds, making the tray table horizontal and providing an operating surface facing rear passengers.

[0003] However, in existing technologies, the angle of the small table relative to the seat back remains fixed after it is unfolded, and it cannot be dynamically adjusted according to the position of the seat back. To maintain the small table in a horizontal position, the seat back can only remain at a specific design angle. When the front seat back is adjusted, the tilt angle of the small table will change accordingly, causing it to be unable to remain horizontal. This can result in items placed on the table slipping or becoming unstable, seriously affecting safety and functionality. Summary of the Invention

[0004] The purpose of this application is to provide an angle-adjustable tabletop structure and chair to solve the problems of tabletop angle not being adjustable and items easily slipping off the table.

[0005] To achieve the objectives of this application, the following technical solution is provided: In a first aspect, this application provides an angle-adjustable tabletop structure, comprising: Tabletop body; A linkage component, comprising a base, a first link, and a second link, wherein a first end of the first link and a first end of the second link are both hinged to the table body, and a second end of the first link and a second end of the second link are both hinged to the base; A driving component is disposed on the tabletop body. The output end of the driving component is connected to the first end of the first connecting rod and drives the first connecting rod to rotate, so as to adjust the tilt angle of the tabletop body.

[0006] In one embodiment, the tabletop body includes a first cover plate, a second cover plate, and a frame, wherein the first cover plate and the second cover plate form a receiving cavity, and the frame is disposed in the receiving cavity and connected to the first cover plate and the second cover plate. The drive component is housed within the receiving cavity and connected to the frame, with the first end of the first connecting rod and the first end of the second connecting rod both hinged to the frame.

[0007] In one embodiment, the first cover plate and the second cover plate are stacked in a first direction, and the driving component is located on one side of the connecting rod component in a second direction, wherein the first direction is perpendicular to the second direction; The frame is provided with a first mounting groove that extends through the frame in the first direction, and at least a portion of the driving component is disposed within the first mounting groove.

[0008] In one embodiment, the driving component includes a connecting shaft, a driving shaft, and a driving body for driving the driving shaft to rotate. The first end of the first connecting rod is provided with a slot, the first end of the connecting shaft is connected to the driving shaft, and the second end of the connecting shaft is inserted into the slot.

[0009] In one embodiment, the slot has a polygonal cross-section, and the cross-sectional area of ​​the slot gradually decreases from the end closer to the drive body to the end farther away from the drive body. The cross-section of the second end of the connecting shaft is polygonal, and the cross-sectional area of ​​the second end of the connecting shaft gradually decreases from the end closer to the driving body to the end farther away from the driving body.

[0010] In one embodiment, a fastener is further included, wherein a threaded hole is provided at the second end of the connecting shaft, and one end of the fastener is inserted into the slot and threadedly connected to the threaded hole.

[0011] In one embodiment, the system further includes a controller, wherein the frame is provided with a second mounting groove extending through the frame in the first direction, at least a portion of the controller is disposed in the second mounting groove, and the controller is connected to the drive component.

[0012] In one embodiment, the controller includes a circuit board and a gyroscope mounted on the circuit board. The gyroscope is used to detect the tilt angle of the tabletop body and transmit the signal to the circuit board. The circuit board controls the drive component to drive the first linkage to rotate.

[0013] In one embodiment, the device further includes an anti-pinch sensor and a wiring harness. The anti-pinch sensor is mounted on the second connecting rod, and the second connecting rod has a wiring groove. One end of the wiring harness is connected to the anti-pinch sensor, and the other end of the wiring harness passes through the wiring groove and is connected to the controller.

[0014] Secondly, this application also provides a seat, including a backrest and an angle-adjustable table structure as described in any of the various embodiments of the first aspect, wherein the base is connected to the backrest.

[0015] Compared with the prior art, this application has at least the following beneficial effects: 1. In this application, the first linkage is driven to rotate by the driving component, and the tilt angle of the table body can be adjusted by the linkage of the linkage components. This allows the user to quickly and conveniently adjust the table to a suitable angle according to different usage scenarios and needs, thereby improving the comfort and convenience of use. 2. In this application, by driving the drive component, the tilt angle of the table body can be dynamically adjusted according to the position of the seat back, ensuring that the table body remains horizontal, preventing items from slipping, and improving the convenience and safety of use. 3. In this application, the driving component is located on the table body to simplify the internal structure of the seat and achieve automatic adjustment of the tilt angle of the table body without occupying the seat space, which facilitates installation and use; 4. In this application, the design of using the first link and the second link to jointly support the table body forms a stable linkage mechanism. During the adjustment of the table body angle, the force borne by the table body can be effectively distributed, ensuring that the table body remains stable at all angles, thereby improving the safety and reliability of the table structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a side view of an angle-adjustable tabletop structure according to one embodiment of this application; Figure 2 This is a perspective view of an angle-adjustable tabletop structure according to one embodiment of this application; Figure 3 for Figure 1 AA section view; Figure 4 An exploded view of an angle-adjustable tabletop structure according to one embodiment of this application; Figure 5 An exploded view of a portion of the structure of an angle-adjustable tabletop structure according to one embodiment of this application; Figure 6 This is an exploded view of the second link, connecting shaft, and fastener according to one embodiment of this application; Figure 7 This is a perspective view of a connecting rod component according to one embodiment of this application; Figure 8 This is an exploded view of the second link and anti-pinch sensor according to one embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: 100. Tabletop body; 110. First cover plate; 120. Second cover plate; 130. Frame; 131. First mounting slot; 132. Second mounting slot; 140. Receiving cavity; 200. Linkage component; 210. Base; 220. First link; 221. Slot; 230. Second link; 231. Cable routing channel; 300. Drive component; 310. Connecting shaft; 311. Threaded hole; 320. Drive shaft; 330. Drive body; 400. Fastener; 500. Controller; 600. Anti-pinch sensor; X, First direction; Y, Second direction. Detailed Implementation

[0019] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0020] refer to Figure 1 , Figure 2 and Figure 3 This application provides an angle-adjustable tabletop structure, including a tabletop body 100, a connecting rod component 200, and a driving component 300. The connecting rod component 200 includes a base 210, a first connecting rod 220, and a second connecting rod 230. The first end of the first connecting rod 220 and the first end of the second connecting rod 230 are both hinged to the tabletop body 100, and the second end of the first connecting rod 220 and the second end of the second connecting rod 230 are both hinged to the base 210. The driving component 300 is disposed on the tabletop body 100, and the output end of the driving component 300 is connected to the first end of the first connecting rod 220 and drives the first connecting rod 220 to rotate, so as to adjust the tilt angle of the tabletop body 100.

[0021] The tabletop body 100 refers to the main structure that provides a supporting plane on which items can be placed or operated. The linkage component 200 is a mechanical connection mechanism used to connect the tabletop body 100 and the base 210, allowing the tabletop body 100 to be angled. This linkage component 200 typically consists of multiple links and hinge points to achieve a specific motion trajectory. The first link 220 and the second link 230 are the main moving components in the linkage component 200, connecting the tabletop body 100 and the base 210 via hinges, jointly supporting the tabletop body 100 and guiding its movement. The drive component 300 refers to the device used to generate power and transmit it to the linkage component 200, thereby enabling the angle adjustment of the tabletop body 100.

[0022] Specifically, the tabletop body 100 can be manufactured as a single piece of material, such as by processing a single sheet of material, or by combining multiple sheets of material through bonding, welding, or bolting. The connecting rod component 200 is configured to support the tabletop body 100 and enable its angle adjustment. The connecting rod component 200 includes a base 210, a first connecting rod 220, and a second connecting rod 230. The base 210 can be designed as a component fixedly mounted on a support structure, for example, by bolting or welding to a seat back. The first connecting rod 220 and the second connecting rod 230 serve as connectors, and their length and shape can be selected according to the required range of motion and structural strength. The first end of the first connecting rod 220 and the first end of the second connecting rod 230 are hinged to the tabletop body 100 to allow the first connecting rod 220 and the second connecting rod 230 to rotate relative to the tabletop body 100, thereby changing the tilt angle of the tabletop body 100. The second ends of the first link 220 and the second links 230 are both hinged to the base 210, forming a four-bar linkage or similar motion mechanism, thereby enabling the tabletop body 100 to perform a preset movement under the support of the base 210. The drive component 300 is configured to provide power to adjust the tilt angle of the tabletop body 100. This drive component 300 can take various forms, such as an electric actuator, a stepper motor with a lead screw mechanism, a rack and pinion mechanism, or a hydraulic / pneumatic cylinder. The drive component 300 is mounted on the tabletop body 100, specifically fixed to the inside, back, or side of the tabletop body 100.

[0023] When the drive component 300 operates, its output end drives the first link 220 to rotate around its hinge point with the tabletop body 100. By driving the rotation of the first link 220, the tilt angle of the tabletop body 100 can be adjusted. For example, when the first link 220 rotates, it causes the tabletop body 100 to tilt relative to the base 210, thereby adjusting the angle of the tabletop body 100 to adapt to different usage scenarios or user needs.

[0024] The adjustable table structure provided in this application achieves active adjustment of the tilt angle of the table body 100 by driving the linkage component 200 to rotate through the drive component 300. Therefore, when the seat back angle changes, the tilt angle of the table body 100 can be adjusted to maintain a horizontal position, effectively preventing items from slipping off. This structure improves the usability of the table at different seat back angles, enhancing the convenience and stability for users placing items inside the vehicle.

[0025] refer to Figure 3 , Figure 4 and Figure 5The tabletop body 100 includes a first cover plate 110, a second cover plate 120, and a frame 130. The first cover plate 110 and the second cover plate 120 form a receiving cavity 140. The frame 130 is disposed within the receiving cavity 140 and connected to the first cover plate 110 and the second cover plate 120. A driving component 300 is housed within the receiving cavity 140 and connected to the frame 130. The first end of the first connecting rod 220 and the first end of the second connecting rod 230 are both hinged to the frame 130. The first cover plate 110 and the second cover plate 120 are plate-shaped components constituting the outer or inner surface of the tabletop body 100. They can be made of various materials such as wood, plastic, metal, or composite materials to meet different strength, aesthetic, and cost requirements. The frame 130 serves as the internal support structure of the tabletop body 100 and is typically made of metal profiles (such as aluminum alloy or steel) or high-strength engineering plastics to provide overall structural rigidity and load-bearing capacity.

[0026] The receiving cavity 140 provides a protected, enclosed environment for the components inside the tabletop body 100, effectively isolating them from external dust, moisture, and mechanical impact, thereby extending the service life of the internal components. The frame 130 is disposed inside the receiving cavity 140 formed by the first cover plate 110 and the second cover plate 120, and the drive component 300 is also housed in the receiving cavity 140 inside the tabletop body 100, protecting the drive component 300 from external environmental corrosion, such as dust and liquids, while also preventing the drive component 300 from being exposed, thus improving the overall aesthetics and safety of the tabletop body 100.

[0027] In addition, this compact internal layout helps optimize the thickness of the tabletop body 100, making it easier to integrate into various seating designs and providing more flexible application scenarios.

[0028] Furthermore, the first cover plate 110 and the second cover plate 120 are stacked in the first direction X, and the driving component 300 is located on one side of the connecting rod component 200 in the second direction Y, with the first direction X being perpendicular to the second direction Y; the frame 130 is provided with a first mounting groove 131 that penetrates the frame 130 in the first direction X, and at least a portion of the driving component 300 is disposed in the first mounting groove 131. The first direction X can be the thickness direction or the vertical direction of the tabletop body 100, and the second direction Y can be the length direction or the width direction of the tabletop body 100.

[0029] Specifically, the drive component 300 is arranged on one side of the link component 200 in the second direction Y, for example, adjacent to the link component 200 in the horizontal direction, rather than overlapping the link component 200 in the vertical direction, so as to avoid the drive component 300 and the link component 200 interfering with each other in the thickness direction of the table body 100, thereby effectively controlling the overall thickness of the table body 100 and realizing a thin design.

[0030] The drive component 300 is partially or completely embedded in the first mounting groove 131 of the frame 130. The drive component 300 can be firmly fixed in the first mounting groove 131, thereby reducing its space occupation in the receiving cavity 140, further reducing the overall thickness of the table body 100, and providing stable support, effectively preventing the drive component 300 from shifting or vibrating during operation.

[0031] refer to Figure 5 and Figure 6 The drive component 300 includes a connecting shaft 310, a drive shaft 320, and a drive body 330 for driving the drive shaft 320 to rotate. The first end of the first connecting rod 220 is provided with a slot 221. The first end of the connecting shaft 310 is connected to the drive shaft 320, and the second end of the connecting shaft 310 is inserted into the slot 221.

[0032] Specifically, the drive body 330 is the core component that provides rotational power. It can be, for example, a DC motor, a stepper motor, or a servo motor, which converts electrical energy or other forms of energy into mechanical rotational motion. The drive shaft 320 is the component that outputs mechanical energy from the drive body 330. One end of the drive shaft 320 is connected to the drive body 330 to receive the rotational power from the drive body 330. The connecting shaft 310 serves as an intermediate transmission element between the drive shaft 320 and the first connecting rod 220. Its function is to accurately transmit the rotational motion of the drive shaft 320 to the first connecting rod 220. The first end of the first connecting rod 220 has a slot 221. The internal shape of the slot 221 matches the second end of the connecting shaft 310. For example, it can be designed with a non-circular cross-section such as square, hexagonal, or spline to ensure reliable torque transmission after the connecting shaft 310 is inserted, preventing relative rotation between the two. The first end of the connecting shaft 310 is connected to the drive shaft 320. This connection can take various forms, such as key connection, pin connection, interference fit, welding, or threaded connection, to ensure that the rotational motion of the drive shaft 320 can be stably and without damage transmitted to the connecting shaft 310. The second end of the connecting shaft 310 is inserted into the slot 221. This insertion fit not only facilitates alignment and insertion during assembly, but also forms a stable torque transmission path when the cross-sectional shapes of the connecting shaft 310 and the slot 221 match, effectively avoiding the alignment difficulties and assembly stress problems that may exist in traditional fixed connections.

[0033] Furthermore, the cross-section of the slot 221 is designed as a polygon, and the cross-sectional area of ​​the slot 221 gradually decreases from the end closer to the drive body 330 to the end farther away from the drive body 330. Simultaneously, in conjunction with the slot 221, the cross-section of the second end of the connecting shaft 310 is also designed as a polygon, and the cross-sectional area of ​​the second end of the connecting shaft 310 similarly gradually decreases from the end closer to the drive body 330 to the end farther away from the drive body 330.

[0034] Specifically, the cross-sectional area of ​​slot 221 gradually decreases from the end closer to drive body 330 to the end farther away from drive body 330. This means that a conical or wedge-shaped space is formed inside slot 221, with its dimensions gradually decreasing along the insertion direction. This tapered design helps to achieve a tight fit through gradual contact and compression when connecting shaft 310 is inserted. The cross-sectional area of ​​the second end of connecting shaft 310 gradually decreases from the end closer to drive body 330 to the end farther away from drive body 330, forming a conical or wedge-shaped end. When the second end of connecting shaft 310 is inserted into slot 221, because both have matching polygonal tapers, connecting shaft 310 can be tightly wedged into slot 221.

[0035] This polygonal tapered fit not only effectively transmits the torque of the drive component 300 and prevents relative rotation between the connecting shaft 310 and the slot 221, but also eliminates gaps during connection through its tapered design, achieving a gapless connection. This significantly improves the accuracy and stability of the drive torque transmission, avoiding inaccurate adjustments or mechanical wear caused by loosening, thereby ensuring the reliability of the tilt angle adjustment of the tabletop body 100 and its long-term stability.

[0036] The angle-adjustable tabletop structure provided in this application also includes a fastener 400. The second end of the connecting shaft 310 is provided with a threaded hole 311, and one end of the fastener 400 is inserted into the slot 221 and threadedly connected to the threaded hole 311. Specifically, the fastener 400 is a general-purpose component for mechanical connection, which functions to securely connect two or more components together and prevent them from moving or separating relative to each other.

[0037] In this embodiment, the fastener 400 can be a screw, bolt, or other threaded connector. The second end of the connecting shaft 310 is provided with a threaded hole 311, which is a hole with internal threads located inside or on the side wall of the second end of the connecting shaft 310. After the second end of the connecting shaft 310 is inserted into the slot 221 of the first end of the first connecting rod 220, one end of the fastener 400 (usually the part with external threads) passes through the reserved hole or opening of the slot 221 and is then screwed into the threaded hole 311 inside the second end of the connecting shaft 310. Through the tightening action of the threads, the fastener 400 firmly fixes the connecting shaft 310 inside the slot 221, thereby forming a connection that is stable both axially and radially, enhancing the stability and reliability of the connection. Even when the table body 100 undergoes frequent angle adjustments or is subjected to external impacts or vibrations, it can effectively prevent the connecting shaft 310 from accidentally coming out of the slot 221 or from becoming axially loose, thereby ensuring that the power transmission between the drive component 300 and the first connecting rod 220 remains stable and precise. This not only improves the precision and repeatability of the 100° angle adjustment of the tabletop body, but also extends the mechanical life of the entire structure, significantly improving the overall user experience and safety of the product.

[0038] The adjustable table structure also includes a controller 500. The frame 130 is provided with a second mounting groove 132 that runs through the frame 130 in the first direction X. At least a part of the controller 500 is provided in the second mounting groove 132. The controller 500 is connected to the drive component 300.

[0039] Specifically, the controller 500 is an electronic device used to receive instructions, process information, and output control signals to regulate system behavior. In this application, the controller 500 receives user instructions or preset programs and generates control signals based on these instructions or programs to drive the drive component 300 to precisely rotate the first linkage 220, thereby achieving the tilt angle adjustment of the tabletop body 100. The controller 500 can be a microcontroller 500 (MCU), a programmable logic controller 500 (PLC), or an application-specific integrated circuit (ASIC), etc., and typically includes modules such as a processor, memory, and input / output interfaces. It can preset multiple tilt angle modes or be adjusted in real time via external inputs (such as buttons, touch screens, remote controls, or sensor signals).

[0040] The frame 130 has a second mounting groove 132 extending through the frame 130 in a first direction X. The second mounting groove 132 is a through groove or hole formed in the frame 130 along the first direction X (i.e., the stacking direction of the first cover plate 110 and the second cover plate 120). The second mounting groove 132 is specifically designed to accommodate at least a portion of the controller 500, providing it with a safe and stable mounting position and facilitating the integration of the controller 500 with the tabletop body 100 structure. The second mounting groove 132 can be designed as a rectangular, circular, or other irregularly shaped groove according to the shape and size of the controller 500, and its depth and width should be sufficient to accommodate the controller 500 and allow necessary cable connections. Its design, extending through the frame 130, facilitates heat dissipation and cable routing.

[0041] At least a portion of the controller 500 is housed within the second mounting slot 132, ensuring that the controller 500 can be effectively integrated into the internal structure of the tabletop body 100. This prevents the controller 500 from being exposed, thus protecting it from external environmental influences while maintaining the overall aesthetics and compactness of the tabletop. The controller 500 can be fully embedded in the second mounting slot 132, or partially embedded, with its interfaces or indicator lights exposed for operation or observation. The controller 500 is secured within the second mounting slot 132 using screws, clips, adhesives, or other methods.

[0042] By connecting the controller 500 to the drive component 300, precise control of the drive component 300 is achieved, thereby enabling convenient and accurate adjustment of the tilt angle of the tabletop body 100.

[0043] Furthermore, the controller 500 includes a circuit board and a gyroscope mounted on the circuit board. The gyroscope is used to detect the tilt angle of the table body 100 and transmit the signal to the circuit board. The circuit board controls the drive component 300 to drive the first link 220 to rotate.

[0044] Specifically, the circuit board in the controller 500 serves as the core of the entire control system, housing electronic components such as a microprocessor, memory, power management module, and various interface circuits. Its main function is to receive signals from sensors, execute preset control algorithms, and output control commands to drive the actuators. For example, the circuit board can integrate a microcontroller unit (MCU) 500, responsible for processing gyroscope signals, calculating the current tilt angle, comparing it with the target angle, and generating corresponding motor drive signals. A gyroscope is a device used to measure or maintain orientation. In this application, it is mainly used to detect the angular velocity and attitude changes of the tabletop body 100, thereby calculating the real-time tilt angle of the tabletop body 100. A typical gyroscope can be a microelectromechanical system (MEMS) gyroscope, which operates based on the Coriolis force principle, measuring angular velocity by detecting the deflection of a small vibrating structure during rotation. To obtain more stable tilt angle information, the gyroscope is usually used in conjunction with an accelerometer to form an inertial measurement unit (IMU), using sensor fusion algorithms (such as Kalman filtering) to eliminate drift errors and provide high-precision attitude data.

[0045] The controller 500 integrates a circuit board and a gyroscope, enabling the tilt angle of the tabletop body 100 to be adjusted according to the change of the backrest angle. This allows the tabletop structure to accurately sense and automatically control the tilt angle of the tabletop body 100, providing users with a more convenient, precise, and intelligent angle adjustment experience.

[0046] refer to Figure 7 and Figure 8 The angle-adjustable tabletop structure also includes an anti-pinch sensor 600 and a wiring harness. The anti-pinch sensor 600 is mounted on the second connecting rod 230. The second connecting rod 230 has a wiring groove 231. One end of the wiring harness is connected to the anti-pinch sensor 600, and the other end of the wiring harness passes through the wiring groove 231 and is connected to the controller 500. The anti-pinch sensor 600 is used to monitor in real time whether there are obstacles or abnormal pressure in the movement area of ​​the second connecting rod 230 during the adjustment of the tilt angle of the tabletop body 100.

[0047] The anti-pinch sensor 600 can be implemented using various technologies. For example, it can be a pressure sensor that determines that there is a risk of being pinched when a preset pressure threshold is triggered; it can also be an infrared sensor or an ultrasonic sensor that detects objects in the movement path by transmitting and receiving signals.

[0048] Meanwhile, the second link 230 is provided with a wiring groove 231 to provide a protected channel for the wire harness. During the movement of the link component 200, the wire harness is easily subjected to wear, pulling, or entanglement. The wiring groove 231 can effectively fix the wire harness, prevent it from direct contact with the external environment, thereby extending the service life of the wire harness and ensuring the stability of signal transmission. The wiring groove 231 can be designed as a closed or semi-closed type to adapt to different protection requirements. One end of the wire harness is connected to the anti-pinch sensor 600, and the other end of the wire harness passes through the wiring groove 231 and is connected to the controller 500. The wire harness, as the transmission medium for electrical signals, is responsible for transmitting the signal detected by the anti-pinch sensor 600 to the controller 500. One end of the wire harness is electrically connected to the anti-pinch sensor 600 to receive the sensor's output signal. The other end of the wire harness is safely routed to the controller 500 through the wiring groove 231 on the second link 230. This connection method ensures that the sensor signal can be transmitted to the control system stably and reliably. At the same time, the design of the wiring trough 231 also avoids damage to the wiring harness during the movement of the linkage, ensuring the normal operation of the entire safety system.

[0049] This application also provides a seat, including a backrest and an adjustable table structure, with a base 210 connected to the backrest. Specifically, a seat is a device for sitting or lying down, typically comprising basic components such as a seat, backrest, armrests, and support structure. Seats come in various types and can be designed as office chairs, dining chairs, car seats, aircraft seats, etc., depending on the usage scenario and functional requirements.

[0050] In this application, the backrest not only provides its inherent support function but also serves as the connection point for the adjustable table structure base 210, providing a stable mounting foundation for the table structure. The adjustable table structure is integrated into the seat, with a table structure mounted on the backrest of the front seat for use by rear passengers. When the driver or front passenger adjusts the tilt angle of the front seat backrest, the tilt angle of the table body 100 changes accordingly, always keeping the table body 100 level to prevent items placed on it from slipping off, thus improving the passenger experience.

[0051] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0052] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. An angle-adjustable tabletop structure, characterized in that, include: Tabletop body (100); A connecting rod assembly (200) includes a base (210), a first connecting rod (220), and a second connecting rod (230). The first end of the first connecting rod (220) and the first end of the second connecting rod (230) are both hinged to the table body (100), and the second end of the first connecting rod (220) and the second end of the second connecting rod (230) are both hinged to the base (210). A driving component (300) is disposed on the table body (100). The output end of the driving component (300) is connected to the first end of the first connecting rod (220) and drives the first connecting rod (220) to rotate, so as to adjust the tilt angle of the table body (100).

2. The adjustable tabletop structure according to claim 1, characterized in that, The tabletop body (100) includes a first cover plate (110), a second cover plate (120), and a frame (130). The first cover plate (110) and the second cover plate (120) form a receiving cavity (140). The frame (130) is disposed in the receiving cavity (140) and connected to the first cover plate (110) and the second cover plate (120). The drive component (300) is housed in the receiving cavity (140) and connected to the frame (130), and the first end of the first connecting rod (220) and the first end of the second connecting rod (230) are both hinged to the frame (130).

3. The angle-adjustable tabletop structure according to claim 2, characterized in that, The first cover plate (110) and the second cover plate (120) are stacked in a first direction (X), and the driving component (300) is located on one side of the connecting rod component (200) in a second direction, wherein the first direction (X) is perpendicular to the second direction; The frame (130) is provided with a first mounting groove (131) extending through the frame (130) in the first direction (X), and at least a portion of the drive component (300) is disposed in the first mounting groove (131).

4. The angle-adjustable tabletop structure according to claim 1, characterized in that, The drive component (300) includes a connecting shaft (310), a drive shaft (320), and a drive body (330) for driving the drive shaft (320) to rotate. The first end of the first connecting rod (220) is provided with a slot (221). The first end of the connecting shaft (310) is connected to the drive shaft (320), and the second end of the connecting shaft (310) is inserted into the slot (221).

5. The angle-adjustable tabletop structure according to claim 4, characterized in that, The slot (221) has a polygonal cross-section, and the cross-sectional area of ​​the slot (221) gradually decreases from the end closer to the drive body (330) to the end farther away from the drive body (330); The cross-section of the second end of the connecting shaft (310) is polygonal, and the cross-sectional area of ​​the second end of the connecting shaft (310) gradually decreases from the end closer to the driving body (330) to the end farther away from the driving body (330).

6. The angle-adjustable tabletop structure according to claim 5, characterized in that, It also includes a fastener (400), the second end of the connecting shaft (310) is provided with a threaded hole (311), one end of the fastener (400) is inserted into the slot (221) and threadedly connected to the threaded hole (311).

7. The angle-adjustable tabletop structure according to claim 3, characterized in that, It also includes a controller (500), the frame (130) is provided with a second mounting groove (132) extending through the frame (130) in the first direction (X), at least a portion of the controller (500) is disposed in the second mounting groove (132), and the controller (500) is connected to the drive component (300).

8. The angle-adjustable tabletop structure according to claim 7, characterized in that, The controller (500) includes a circuit board and a gyroscope mounted on the circuit board. The gyroscope is used to detect the tilt angle of the table body (100) and transmit the signal to the circuit board. The circuit board controls the drive component (300) to drive the first link (220) to rotate.

9. The angle-adjustable tabletop structure according to claim 7, characterized in that, It also includes an anti-pinch sensor (600) and a wire harness. The anti-pinch sensor (600) is disposed on the second connecting rod (230). The second connecting rod (230) is provided with a wiring groove (231). One end of the wire harness is connected to the anti-pinch sensor (600), and the other end of the wire harness passes through the wiring groove (231) and is connected to the controller (500).

10. A type of seat, characterized in that, It includes a backrest and an angle-adjustable table structure according to any one of claims 1-9, wherein the base (210) is connected to the backrest.

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