A tabletop mechanism assembly

Abstract

This utility model relates to a tabletop mechanism assembly, comprising: a frame; a base movably mounted on the frame via a first track; and a tabletop movably mounted on the base via a second track. In the retracted state, the base and / or the tabletop is locked to the frame; in the fully extended state, the base and / or the tabletop is locked to the frame. According to this utility model's tabletop mechanism assembly, the extension of the tabletop is expanded by moving the base, thereby significantly increasing the usable area of ​​the tabletop and effectively solving the problems of small usable area and limited extension of tabletops in the prior art. Furthermore, according to this utility model's tabletop mechanism assembly, the tabletop is locked to the frame in the fully extended state, effectively solving the problem of unstable tabletop extension in the prior art.

Description

Technical Field

[0001] This utility model relates to vehicles, and more specifically to a table mechanism assembly. Background Technology

[0002] Providing a retractable tray table on the passenger side inside the vehicle is crucial for enhancing practicality and comfort. However, existing in-vehicle tray table designs have limitations and problems. Traditional single-layer tray tables, due to their structural limitations, have a small extension range, resulting in a limited usable area that cannot meet the user's need for a larger area while the vehicle is in motion. While multi-layer tray tables with three-section rails can increase usable area, the steps between different layers affect usability, and there are issues such as poor stability due to the rail sections connecting different layers, unstable unfolding state, and exposed rails. These problems not only reduce the aesthetics of the vehicle interior but also affect the flatness and comfort during use. Utility Model Content

[0003] In order to solve the problems of small usable area of ​​single-layer tabletops, unstable unfolding state of multi-layer tabletops and external guide rails in the existing technology, this utility model aims to provide a tabletop mechanism assembly.

[0004] According to the present invention, the tabletop mechanism assembly includes: a frame; a base movably mounted on the frame via a first track; and a tabletop movably mounted on the base via a second track; in the retracted state, the base and / or the tabletop are locked to the frame; and in the fully extended state, the base and / or the tabletop are locked to the frame.

[0005] In a preferred embodiment, the base includes: a body; a first sliding mechanism formed as a first track, the body being movably mounted on a frame via the first sliding mechanism; and a second sliding mechanism formed as a second track, the table being movably mounted on the body via the second sliding mechanism, the movement trajectories defined by the first track and the second track being parallel.

[0006] In a preferred embodiment, the second sliding mechanism includes: a guide rod fixedly disposed on the body, the tabletop including a hollow channel, the guide rod passing through the hollow channel so that the tabletop can move relative to the base along the guide rod.

[0007] In a preferred embodiment, the second sliding mechanism further includes a stabilizing plate, with a plurality of guide rods spaced apart on the stabilizing plate.

[0008] In a preferred embodiment, the first sliding mechanism is a linear roller guide structure or a linear gear guide structure, and / or the second sliding mechanism is a linearly extending raised groove structure.

[0009] In a preferred embodiment, the tabletop mechanism assembly includes a first locking assembly. In the retracted state, the tabletop is locked by the first locking assembly, and the base is simultaneously locked due to the top contact of the tabletop.

[0010] In a preferred embodiment, the first lock assembly includes: a force-applying mechanism; a transmission mechanism; and a locking mechanism that defines the locked state of the base and the table; wherein the force-applying mechanism is connected to the locking mechanism via the transmission mechanism to unlock the base and the table in the folded state.

[0011] In a preferred embodiment, the locking mechanism includes a stop plate and an elastic member. The stop plate is rotatably mounted on the frame and has a stop pin. The table has a locking groove, and the elastic member has a tendency to disengage the stop pin from the locking groove. When the table is locked in the retracted state, the transmission mechanism limits the locking mechanism, and the stop pin is located in the locking groove to restrict the movement of the table relative to the frame. When the table is unlocked and moves towards the fully extended state, the force application mechanism drives the transmission mechanism to move, releasing the limitation on the locking mechanism. The stop plate rotates under the drive of the elastic member to disengage the stop pin from the locking groove, allowing the table to move relative to the frame.

[0012] In a preferred embodiment, the tabletop mechanism assembly includes a self-locking motor. In the retracted state, the tabletop is locked by the motor, and the base is simultaneously locked due to the top contact of the tabletop.

[0013] In a preferred embodiment, the tabletop includes a second locking assembly. In the fully extended state, the tabletop is locked by the second locking assembly, and the base is simultaneously locked due to the tabletop's stop position.

[0014] In a preferred embodiment, the second lock assembly includes a cooperating handle lever and at least one locking lever, the free end of which forms a locking tongue. When the tabletop is in the fully extended state, the locking tongue extends into the lock hole of the frame to lock, thereby restricting the relative movement between the tabletop and the frame. Pulling the handle lever drives the locking tongue of the locking lever to exit the lock hole to unlock, so that the tabletop can be folded up to the folded state.

[0015] In a preferred embodiment, the tabletop includes an electromagnetic double-tongue lock structure or a double-point lock structure. In the fully unfolded state, the tabletop is locked by the electromagnetic double-tongue lock structure or the double-point lock structure, and the base is simultaneously locked due to the stop position of the tabletop.

[0016] In a preferred embodiment, the frame includes a housing and a panel. The housing forms the main structure of the tabletop assembly and is fixedly installed inside the dashboard, while the panel forms the exterior surface of the tabletop assembly and is fixedly installed on the outside of the dashboard.

[0017] In a preferred embodiment, a first track is disposed between the base and the side wall of the housing, defining the movement trajectory of the base relative to the housing; and / or a second track is disposed between the base and the tabletop, defining the movement trajectory of the tabletop relative to the base.

[0018] According to the tabletop mechanism assembly of this utility model, the extension of the tabletop is expanded by moving the base, thereby significantly increasing the usable area of ​​the tabletop and effectively solving the problems of small usable area and limited extension in existing technologies. Furthermore, the tabletop mechanism assembly of this utility model locks onto the frame in the fully extended state, effectively solving the problem of unstable tabletop extension in existing technologies. In addition, the base of the tabletop mechanism assembly of this utility model is always located inside the assembly, with no guide rail structure or locking structure exposed externally. This concealed design not only enhances the product's aesthetics but also strengthens its safety and reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the application environment of a tabletop mechanism assembly according to a preferred embodiment of the present invention.

[0020] Figure 2 yes Figure 1 Exploded view of the tabletop assembly.

[0021] Figure 3 Show Figure 2 The tabletop mechanism assembly moves between the retracted state and the fully extended state.

[0022] Figure 4 yes Figure 2 A schematic diagram of the first lock assembly.

[0023] Figure 5 Show Figure 4 The unlocking mechanism of the locking mechanism.

[0024] Figure 6 yes Figure 2 A structural schematic diagram of a replacement example of the first lock assembly.

[0025] Figure 7 yes Figure 2 A schematic diagram of the base structure.

[0026] Figure 8 yes Figure 7 A schematic diagram of the structure of the first alternative example of the first sliding mechanism.

[0027] Figure 9 yes Figure 7 A schematic diagram of the structure of the second alternative example of the first sliding mechanism.

[0028] Figure 10 yes Figure 2A structural diagram of the tabletop.

[0029] Figure 11 yes Figure 10 A schematic diagram of the structure of the first replacement example of the second lock assembly.

[0030] Figure 12 yes Figure 10 A schematic diagram of the structure of the second replacement example of the second lock assembly.

[0031] Figure 13 Show Figure 2 The entire movement process of the tabletop mechanism assembly.

[0032] Figure 14 yes Figure 13 A sectional view in its unfolded state.

[0033] Figure 15 yes Figure 13 A sectional view in its fully unfolded state. Detailed Implementation

[0034] The preferred embodiments of this utility model are given below with reference to the accompanying drawings and described in detail.

[0035] like Figure 1 As shown, according to a preferred embodiment of the present invention, the table mechanism assembly C is mounted on the dashboard A. From the perspective of the front passenger, the table mechanism assembly C is located directly above the glove box B, optimizing space utilization and enhancing functionality.

[0036] like Figure 2 As shown, the tabletop mechanism assembly C includes a housing 10, a first lock assembly 20, a base 30, a tabletop 40, and a panel 50. The housing 10 forms the main frame of the tabletop mechanism assembly C and is fixedly mounted on the dashboard A (see Figure 10). Figure 1 The interior of the dashboard A is enclosed by a panel 50, which is fixedly mounted on the outer side of the dashboard A, forming the exterior surface of the tabletop assembly C. The housing 10 and panel 50 can be integrated into the dashboard A or connected to it as independent modules. A first lock assembly 20 is mounted on the housing 10. Within the space defined by the housing 10 and panel 50, a base 30 is movably mounted inside the dashboard A via a first rail. A tabletop 40 is movably mounted on the base 30 via a second rail and extends outward from the dashboard A through an opening in the panel 50 for user use.

[0037] like Figure 3As shown, in the initial state, both the base 30 and the table 40 are in a retracted state, located inside the dashboard A. The table 40 is locked by the first locking assembly 20, and the base 30 is simultaneously locked due to the rear edge of the table 40 contacting the locking plate 30a. When the first locking assembly 20 is unlocked, the base 30 remains stationary, and the table 40 begins to extend outward, partially unfolding via the second track. Subsequently, the table 40 remains stationary relative to the base 30, the base 30 unfolds via the first track, and the table 40 unfolds the remaining portion accordingly, until both the base 30 and the table 40 are fully unfolded. The unfolded state of the base 30 always remains inside the dashboard A, while the fully unfolded state of the table 40 corresponds to its maximum extension from the dashboard A, available for user use. In this way, the table 40 expands its usable area by moving the base 30, meeting the needs of vehicle occupants for a larger table area.

[0038] like Figure 4 As shown, the first lock assembly 20 includes a force application mechanism 210, a transmission mechanism 220, and a locking mechanism 230. The locking mechanism 230 is used to limit the locked state of the housing 10 and the tabletop 40. The force application mechanism 210 is connected to the locking mechanism 230 through the transmission mechanism 220 to unlock the locked state of the housing 10 and the tabletop 40.

[0039] See Figure 3 The head of the force-applying mechanism 210 protrudes from the surface of the panel 50, and its other end abuts against the transmission mechanism 220. The transmission mechanism 220 and the locking mechanism 230 are mounted on the top surface of the housing 10. The driven end of the transmission mechanism 220 cooperates with the locking mechanism 230.

[0040] like Figure 4 As shown, the force application mechanism 210 includes a button 211, a push rod felt 212, a push rod spring 213, and a push rod 214. The button 211 is mounted on the panel 50 as an external component, and the user triggers the unlocking process of the first lock assembly 20 by pressing this button 211. The button 211 is connected to the transmission mechanism 220 via the push rod 214, which is covered with push rod felt 212 to absorb the impact sound between the button 211 and the push rod 214, reducing noise. The push rod spring 213 ensures that the push rod 214 returns to its original position after the button 211 is released, and the push rod felt 212 provides cushioning during the return of the push rod 214 to prevent abnormal noise.

[0041] like Figure 4As shown, the transmission mechanism 220 includes a transmission locking rod 221, a transmission locking rod spring 222, an unlocking locking rod 223, and a locking rod spring 224. The push rod 214 drives the transmission locking rod 221, and the transmission locking rod 221 contacts the unlocking locking rod 223 via a 45° inclined plane, converting the linear motion of the push rod 214 into linear movement of the unlocking locking rod 223 in the vertical direction. The transmission locking rod spring 222 helps the transmission locking rod 221 return to its original position after unlocking, while the locking rod spring 224 helps the unlocking locking rod 223 return to its original position after unlocking.

[0042] like Figure 4 As shown, the locking mechanism 230 includes a stop plate 231, an elastic member 232, a turntable 233, and a screw 234. The driven end of the unlocking lever 223 acts on the stop plate 231, which is rotatably mounted on the housing 10 via the turntable 233 and the screw 234. The elastic member 232 connects the stop plate 231 and the turntable 233, with the turntable 233 covering the elastic member 232 to prevent it from dislodging. In this embodiment, the elastic member 232 is a torsion spring.

[0043] like Figure 4 As shown, the stop plate 231 has a stop pin 231a, as... Figure 5 As shown, the tabletop 40 is provided with a locking groove 41, and the elastic member 232 has a tendency to disengage the stop pin 231a from the locking groove 41. When the tabletop 40 is locked in the retracted state, the transmission mechanism 220 limits the locking mechanism 230, that is, the stop plate 231 is limited by the unlocking lever 223, and the stop pin 231a is located in the locking groove 41 to restrict the movement of the tabletop 40 relative to the housing 10. When the tabletop 40 is unlocked and unfolded outward, the force application mechanism 210 drives the transmission mechanism 220 to move, that is, when the unlocking lever 223 moves under the push of the push rod 214, it releases the limitation on the stop plate 231. The stop plate 231 rotates a specific angle (e.g., 57°, the specific angle is determined according to the actual design) under the drive of the elastic member 232, so that the stop pin 231a disengages from the locking groove 41, and the tabletop 40 can move relative to the housing 10.

[0044] It should be understood that the structure of the first lock assembly 20 described above is merely an example and not a limitation. In other embodiments, the first lock assembly 20 can be replaced by various types of motors 20a, such as... Figure 6 As shown, it is not limited to Figure 6The specific structural form of the motor is shown. Motor 20a can directly limit the locked and unlocked states of the base 30 and tabletop 40 via its switch. In the retracted state, the tabletop 40 is locked by the self-locking mechanism of motor 20a, and the base 30 is simultaneously locked due to the top contact of the tabletop 40. When the self-locking state of motor 20a is released by the switch, motor 20a drives the corresponding mechanical components, switching the base 30 and tabletop 40 from the locked state to the unlocked state, and vice versa, providing a simpler and more efficient way to control them.

[0045] like Figure 7 As shown, the base 30 includes a body 31, a first sliding mechanism 32, and a second sliding mechanism 33. The body 31 is movably mounted inside the housing 10 via the first sliding mechanism 32, or movably mounted directly inside the dashboard A. The table 40 is movably mounted on the body 31 via the second sliding mechanism 33. The first sliding mechanism 32 is a linear slide rail, which limits the movement of the base 30 along the first track. The second sliding mechanism 33 is a linear guide rail, which limits the movement of the table 40 along the second track. The movement trajectories defined by the first track and the second track are parallel. In this embodiment, the first sliding mechanism 32 is disposed between the base 30 and the side wall of the housing 10, limiting the movement trajectory of the base 30 relative to the housing 10; the first sliding mechanism 32 is disposed between the base 30 and the table 40, limiting the movement trajectory of the table 40 relative to the base 30.

[0046] The first sliding mechanism 32 is installed at a suitable position on the dashboard A to provide a stable sliding path for the base 30. In addition, the base 30 may also include a damping device that connects the base 30 to the housing 10 to prevent the base 30 from popping out too quickly when the locking mechanism 230 is unlocked.

[0047] like Figure 7 As shown, the second sliding mechanism 33 includes two guide rods 331 and a stabilizing plate 332. The guide rods 331 are fixedly mounted on the body 31. The tabletop 40 includes a hollow channel, through which the guide rods 331 are inserted. The stabilizing plate 332 connects the two guide rods 331 and is fixedly mounted on the locking plate 30a of the body 31. Thus, the guide rods 331 provide precise guidance for the sliding of the tabletop 40, and the stabilizing plate 332 increases the parallelism and stability of the guide rods 331.

[0048] It should be understood that the structures of the linear slide rails and linear guides described above are merely examples and not limitations. In other embodiments, the first sliding mechanism 32 can be replaced with, for example... Figure 8 The roller guide 32a shown, or as... Figure 9The gear guide rail 32b shown can also be replaced with other motion trajectory methods such as ball guide rails, as long as it can achieve stable movement of the base 30 along the first track. Similarly, the second sliding mechanism 33 can be replaced with a linear protrusion-groove adapter structure, as long as it can achieve stable movement of the tabletop 40 along the second track.

[0049] like Figure 10 As shown, the tabletop 40 includes a first housing 410, a second housing 420, and a second lock assembly 430. The first housing 410 and the second housing 420 are connected by a snap-fit ​​mechanism, providing a connection base for the second lock assembly 430. In the fully extended state, the tabletop 40 is locked by the second lock assembly 430, and the base 30 is simultaneously locked due to the stop position of the tabletop 40. After the second lock assembly 430 is unlocked, the tabletop 40 can be retracted inward.

[0050] It should be understood that the hollow channel through which the guide rod 331 of the base 30 passes is defined by the first housing 410 and the second housing 420, and the second lock assembly 430 is also installed between the first housing 410 and the second housing 420. The guide rod 331 of the base 30 and the second lock assembly 430 do not interfere with each other inside the table 40.

[0051] like Figure 10 As shown, the second lock assembly 430 includes a handle lever 431, a handle spring 432, a first lock lever 433, a first lock lever spring 434, a second lock lever 435, a second lock lever spring 436, a lock lever turntable 437, a lock lever turntable pressure plate 438, and a lock lever screw 439. The handle lever 431, the first lock lever 433, and the second lock lever 435 are respectively mounted via grooves on the first housing 410 and the second housing 420. The lock lever turntable 437 is rotatably mounted on the first housing 410 via the lock lever turntable pressure plate 438 and the screw 439. The adjacent ends of the first lock lever 433 and the second lock lever 435 are respectively connected to the lock lever turntable 437 to drive the first and second lock levers 433 and 435 to move synchronously. The first housing 410 and the second housing 420 have notches on both sides of their tails, through which the distant ends of the first lock lever 433 and the second lock lever 435 extend outward.

[0052] The far ends of the first locking rod 433 and the second locking rod 435 form a locking tongue. In the fully extended state, the locking tongue extends into the lock hole provided in the panel 50 or the housing 10 to lock the tabletop 40. When the user pulls the recessed buckle at the bottom of the tabletop, the handle lever 431 slides in the groove, causing the first and second locking rods 433 and 435 to disengage from the lock hole, thereby unlocking the tabletop 40. The handle spring 432, the first locking rod spring 434, and the second locking rod spring 436 provide a reset function for the handle lever 431, the first locking rod 433, and the second locking rod 435, respectively, while also providing a damping feel for the pull.

[0053] It should be understood that the structure of the second lock assembly 430 described above is merely an example and not a limitation. In other embodiments, the second lock assembly 430 can be replaced with an electromagnetic double-tongue lock structure 430a, such as... Figure 11 As shown, it can also be replaced with other two-point lock structures 430b, such as... Figure 12 As shown. In the fully extended state, the tabletop 40 is locked by an electromagnetic double-tongue lock structure or a double-point lock structure, and the base 30 is simultaneously locked due to the stop position of the tabletop 40. It should be understood that the various specific forms of the first lock assembly 20 and the various specific forms of the second lock assembly 430 mentioned above can be arbitrarily combined in pairs as needed to achieve locking of the base 30 and the tabletop 40 in the retracted and fully extended states.

[0054] The following is combined Figure 13 Briefly describe the movement process of the tabletop mechanism assembly C. In the retracted state a, the user first initiates the unlocking process of the first lock assembly 20 by pressing the unlock button 211 located on the panel 50. With the unlock button 211 pressed, the push rod 214 pulls the unlocking lock rod 223 to release the restriction on the stop plate 231. The stop plate 231 rotates counterclockwise under the action of the elastic component 232, and the tabletop 40 pops outward by one edge, as shown in the pop-out state b. The user can manually pinch the edge of the tabletop 40 and pull it manually, as shown in the pulled-out state c. During the manual pulling of the tabletop 40, the tabletop 40 slides outward along the path defined by the guide rod 331 until it reaches the intermediate unfolded state d. In this intermediate unfolded state d, as shown... Figure 14 As shown, the stop member 42 at the rear of the tabletop 40 contacts the base 30. Continuing to pull the tabletop 40, the tabletop 40 pulls the base 30 via the stop member 42, causing the base 30 to be pulled outwards, thus allowing the tabletop 40 to continue to be extended until it reaches the fully extended state e. In this fully extended state e, the base 30 is pulled forward to the position closest to the panel 50, and a felt is provided on the surface of the panel 50 facing the base 30 to prevent abnormal noise. In this fully extended state e, as... Figure 15As shown, the latches of the second lock assembly 430 extend into the corresponding lock holes of the panel 50 to achieve locking. At this time, the tabletop 40 is pulled forward to provide the maximum usable area and locked by the second lock assembly 430, while the base 30 is locked synchronously under the action of the stop member 42. After the user finishes using the tabletop, by pressing the recessed buckle at the bottom of the tabletop, the handle lever 431 slides in the tabletop groove, and the handle lever 431 drives the first locking lever 433 out of the lock hole. The locking lever turntable 437 contacts the first and second locking levers 433 and 435, driving the first and second locking levers 433 and 435 to move synchronously, as shown in the retracted unlocked state f. When the user manually pushes the tabletop 40 back, the tabletop 40 first retracts relative to the base 30 via the guide rod 331, and then retracts together with the base 30 after the rear edge of the tabletop 40 abuts against the locking plate 30a of the base 30, as shown in the retracted state g. As the tabletop 40 is pushed back, the locking mechanism 230 of the first locking assembly 20 relocks the tabletop 40. The rear edge of the tabletop 40 touches the locking plate 30a of the base 30, and the base 30 is locked synchronously, ensuring that the base 30 and the tabletop 40 are securely stored inside the housing 10, as shown in the retracted locking state h.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various variations can be made to the above embodiments of this utility model. That is, all simple and equivalent changes and modifications made based on the claims and description of this utility model fall within the protection scope of the claims of this utility model. Any aspects not described in detail in this utility model are conventional technical content.

Claims

1. A table board mechanism assembly (C) characterized by, The tabletop assembly (C) includes: frame; The base (30) is movably mounted on the frame via a first track; and The tabletop (40) is movably mounted on the base (30) via a second track; In the folded state, the base (30) and / or the table (40) are locked to the frame; in the fully extended state, the base (30) and / or the table (40) are locked to the frame.

2. The table board mechanism assembly (C) according to claim 1, characterized in that, The base (30) includes: Ontology(31); A first sliding mechanism (32) forming a first track, the main body (31) being movably mounted on the frame via the first sliding mechanism (32); and The second sliding mechanism (33) forms the second track, and the table (40) is movably mounted on the body (31) through the second sliding mechanism (33). The movement trajectory defined by the first track and the second track is parallel.

3. The table board mechanism assembly (C) according to claim 2, characterized in that, The second sliding mechanism (33) includes a guide rod (331) fixedly mounted on the body (31), and the table (40) includes a hollow channel. The guide rod (331) passes through the hollow channel so that the table (40) can move relative to the base (30) along the guide rod (331).

4. The table board mechanism assembly (C) according to claim 3, characterized in that, The second sliding mechanism (33) also includes a stabilizing plate (332), with multiple guide rods (331) spaced apart on the stabilizing plate (332).

5. The table board mechanism assembly (C) according to claim 2, characterized in that, The first sliding mechanism (32) is a linear roller guide structure or a linear gear guide structure, and / or The second sliding mechanism (33) is a straight-line extended raised groove structure.

6. The table board mechanism assembly (C) according to claim 1, characterized in that, The tabletop mechanism assembly (C) includes a first locking assembly (20). In the retracted state, the tabletop (40) is locked by the first locking assembly (20), and the base (30) is simultaneously locked due to the top contact of the tabletop (40).

7. The table board mechanism assembly (C) according to claim 6, characterized in that The first lock assembly (20) includes: Force-applying mechanism (210); Transmission mechanism (220); and A locking mechanism (230) that limits the locking state of the base (30) and the table (40); The force application mechanism (210) is connected to the locking mechanism (230) via the transmission mechanism (220) to unlock the base (30) and table (40) in the retracted state.

8. The table board mechanism assembly (C) according to claim 7, characterized in that The locking mechanism (230) includes a stop plate (231) and an elastic member (232), wherein the stop plate (231) is rotatably mounted on the frame and has a stop pin (231a), the table (40) has a locking groove (41), and the elastic member (232) has a tendency to disengage the stop pin (231a) from the locking groove (41); When the tabletop (40) is locked in the retracted state, the transmission mechanism (220) limits the locking mechanism (230), and the stop pin (231a) is located in the locking groove (41) to restrict the movement of the tabletop (40) relative to the frame. When the tabletop (40) is unlocked and moved toward the fully extended state, the force application mechanism (210) drives the transmission mechanism (220) to move, releasing the limit on the locking mechanism (230). The stop plate (231) rotates under the drive of the elastic member (232) so that the stop pin (231a) is dislodged from the locking groove (41), and the tabletop (40) can move relative to the frame.

9. The table board mechanism assembly (C) according to claim 1, characterized in that, The table mechanism assembly (C) includes a self-locking motor. In the retracted state, the table (40) is locked by the motor, and the base (30) is simultaneously locked due to the top contact of the table (40).

10. The table board mechanism assembly (C) according to claim 1, characterized in that, The tabletop (40) includes a second locking assembly (430). In the fully extended state, the tabletop (40) is locked by the second locking assembly (430), and the base (30) is simultaneously locked due to the stop position of the tabletop (40).

11. The tabletop mechanism assembly (C) according to claim 10, characterized in that, The second lock assembly (430) includes a cooperating handle lever (431) and at least one locking lever (433), the free end of which forms a locking tongue. When the tabletop (40) is in the fully extended state, the locking tongue extends into the lock hole of the frame to lock, thereby restricting the relative movement between the tabletop and the frame. Pulling the handle lever (431) drives the locking tongue of the locking lever (433) to exit the lock hole to unlock, so that the tabletop (40) can be folded up towards the folded state.

12. The table board mechanism assembly (C) according to claim 1, characterized in that, The tabletop (40) includes an electromagnetic double-tongue lock structure or a double-point lock structure. In the fully unfolded state, the tabletop (40) is locked by the electromagnetic double-tongue lock structure or the double-point lock structure, and the base (30) is simultaneously locked due to the stop position of the tabletop (40).

13. The table board mechanism assembly (C) according to claim 1, characterized in that, The frame includes a housing (10) and a panel (50). The housing (10) forms the main structure of the table mechanism assembly (C) and is fixedly installed inside the instrument panel (A). The panel (50) forms the exterior surface of the table mechanism assembly (C) and is fixedly installed on the outside of the instrument panel (A).

14. The table board mechanism assembly (C) according to claim 13, characterized in that, The first track is disposed between the sidewalls of the base (30) and the outer shell (10), defining the movement trajectory of the base (30) relative to the outer shell (10); and / or The second track is set between the base (30) and the table (40), defining the movement trajectory of the table (40) relative to the base (30).

Images