A table board, seat assembly and vehicle

Abstract

The embodiment of the present application provides a table board, a seat assembly and a vehicle, the table board comprising: a mounting support, a table board body, a plurality of link sets and an adjusting mechanism, the table board body being connected with the mounting support through the plurality of link sets, the link set comprising a first link and a second link, and the adjusting mechanism comprising a driving unit, a first transmission unit and a second transmission unit, wherein the driving unit drives at least one of the first link and the second link to rotate relative to the mounting support through the first transmission unit, so as to control the table board body to switch between an open state and a storage state, and the driving unit adjusts a horizontal angle of the table board body through the second transmission unit. According to the table board of the present application, when the angle of the backrest changes, the driving unit can drive the second transmission unit to drive at least one of the first link and the second link to move, so that the table board body returns to a horizontal state, thereby avoiding that the table board body is inclined to affect normal use of the table board.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a table, seat assembly, and vehicle. Background Technology

[0002] As the automotive industry continues to develop, users' demands for car cabin comfort are also increasing. Some models have added tray tables to the seatbacks to facilitate rear passengers placing items. However, during use, changes in the seatback angle cause the tray tables to tilt, affecting their normal operation. Therefore, this needs improvement. Utility Model Content

[0003] This application provides a table, a seat assembly, and a vehicle, aiming to improve the problem that the tilt of the table affects normal use after the seat back is changed.

[0004] In a first aspect, this application provides a tabletop, comprising: a mounting bracket; a tabletop body and a plurality of linkage groups, wherein the plurality of linkage groups are arranged along the length direction of the tabletop body, the tabletop body is connected to the mounting bracket via the plurality of linkage groups, each linkage group including a first linkage and a second linkage, a first end of the first linkage and a first end of the second linkage being connected to the mounting bracket and movable relative to the mounting bracket, and a second end of the first linkage and a second end of the second linkage being connected to the tabletop body and movable relative to the tabletop body; and an adjustment mechanism, the adjustment mechanism including a drive unit, a first transmission unit and a second transmission unit, wherein the drive unit... The drive unit is adapted to be driven to at least one of the first link and the second link via the first transmission unit, and is used to drive at least one of the first link and the second link to rotate relative to the mounting bracket, so as to control the table body to switch between an open state and a retracted state; the drive unit is adapted to be driven to at least one of the first link and the second link via the second transmission unit, and is used to adjust the distance between the first end of the first link and the first end of the second link and / or the distance between the second end of the first link and the second end of the second link, so as to adjust the horizontal angle of the table body when it is in the open state.

[0005] In the above technical solution, the first transmission unit driven by the drive unit can control the table body to switch between the open state and the folded state. The second transmission unit driven by the drive unit can adjust the distance between the first end of the first link and the first end of the second link and / or the distance between the second end of the first link and the second end of the second link. When the backrest angle changes, the second transmission unit driven by the drive unit can move at least one of the first link and the second link to restore the table body to a horizontal state, so as to avoid the table body tilting and affecting the normal use of the table.

[0006] In some embodiments, the drive unit is adapted to be connected to the first link via the first transmission unit, and the drive unit is adapted to be connected to the second link via the second transmission unit.

[0007] In the above technical solution, mutual interference between the transmission of the first transmission unit and the second transmission unit can be avoided. In addition, the layout of the adjustment mechanism can be avoided from being too compact. That is, the arrangement positions of the first transmission unit and the second transmission unit can be dispersed, which can reduce the difficulty of the transmission connection between the first transmission unit and the first connecting rod and the transmission connection between the second transmission unit and the second connecting rod, thereby reducing the installation difficulty of the adjustment mechanism.

[0008] In some embodiments, the drive unit includes a drive motor, which is detachably connected to the first transmission unit and detachably connected to the second transmission unit; wherein, when the drive motor is connected to the first transmission unit, the drive motor is connected to the first connecting rod via the first transmission unit, and when the drive motor is connected to the second transmission unit, the drive motor is connected to the second connecting rod via the second transmission unit.

[0009] The above technical solution reduces the number of drive motors, thereby reducing the installation space occupied by the adjustment mechanism and lowering the production cost of the tabletop. Furthermore, it ensures that the adjustment mechanism can stably control the opening and closing of the tabletop and adjust its horizontal angle.

[0010] In some embodiments, the drive motor has an opening / closing control state and an angle adjustment state. In the opening / closing control state, the drive motor is connected to the first transmission unit and disconnected from the second transmission unit. In the angle adjustment state, the drive motor is connected to the second transmission unit and disconnected from the first transmission unit.

[0011] In the above technical solution, when the drive motor is in the opening and closing control state, the table body is switched between the open state and the storage state only through the first transmission unit. When the drive motor is in the angle adjustment state, the horizontal angle of the table body is adjusted only through the second transmission unit, thereby ensuring that the opening and closing control and angle adjustment of the table body can be carried out independently and reliably.

[0012] In some embodiments, the first transmission unit includes a first output gear and a first input gear. The first output gear is disposed on the output shaft of the drive motor, and the first input gear is tractively connected to the first connecting rod. The second transmission unit includes a second output gear and a second input gear. The second output gear is disposed on the output shaft of the drive motor, and the second input gear is tractively connected to the second connecting rod. The first output gear, the first input gear, the second output gear, and the second input gear are all half-side gears. In the opening and closing control state, the first output gear meshes with the first input gear, and the second output gear and the second input gear can rotate relatively independently. In the angle adjustment state, the second output gear meshes with the second input gear, and the first output gear and the first input gear can rotate relatively independently.

[0013] In the above technical solution, by selecting half-gears as the first output gear, the first input gear, the second output gear, and the second input gear, and by adjusting the meshing areas of the first output gear and the first input gear, as well as the meshing areas of the second output gear and the second input gear, the rotation of the output shaft of the drive motor can control the connection or separation of the drive motor with the first transmission unit and the second transmission unit. This can simplify the adjustment mechanism, reduce the installation space occupied by the adjustment mechanism, and lower production costs.

[0014] In some embodiments, the second transmission unit further includes a first transmission gear and a second transmission gear, the first transmission gear being connected to the first input gear and meshing with the second transmission gear, the second transmission gear being connected to the second connecting rod, and the transmission ratio between the first transmission gear and the second transmission gear being less than 1.

[0015] In the above technical solution, the speed-increasing mechanism formed by the cooperation of the first transmission gear and the second transmission gear can reduce the rotation angle range when the drive shaft of the drive motor drives the second link to move, based on the fixed travel of the second end of the second link, so as to meet the requirement that the first output gear, the first input gear, the second output gear and the second input gear are half-side gears.

[0016] In some embodiments, the drive motor, the first transmission unit, and the second transmission unit are all disposed on the tabletop body. The drive motor is adapted to be connected to the second end of the first connecting rod via the first transmission unit to drive the first connecting rod to rotate relative to the tabletop body. The drive motor is adapted to be connected to the second end of the second connecting rod via the second transmission unit to drive the second end of the second connecting rod to move closer to or away from the second end of the first connecting rod.

[0017] In the above technical solution, since the drive motor, the first transmission unit and the second transmission unit are all installed on the table body, only the linkage group and the mounting bracket need to be connected when installing the table, which can simplify the installation process of the table and improve the installation efficiency of the table.

[0018] In some embodiments, the linkage assembly is located at the end of the tabletop body along the length direction, the drive motor is located at the middle of the tabletop body along the length direction, at least a portion of the first transmission unit and the second transmission unit are located between the drive motor and the linkage assembly, and the first transmission unit and the second transmission unit are arranged along the width direction of the tabletop body.

[0019] In the above technical solution, it is convenient to connect the linkage group to the table body and the drive motor to the linkage group. In addition, it can reduce the space occupied by the adjustment mechanism in the thickness direction of the table body, and the layout is compact and reasonable.

[0020] In some embodiments, the second transmission unit further includes a self-locking transmission assembly, which includes a worm, a worm wheel, and a slider. The worm meshes with the worm wheel. When the drive motor is connected to the second transmission unit, the worm is connected to the output shaft of the drive motor. The slider is slidably disposed on the table body along a direction close to or away from the second end of the first connecting rod. The second end of the second connecting rod is rotatably disposed on the slider. The slider has a mating tooth portion, and the worm wheel meshes with the mating tooth portion.

[0021] In the above technical solution, after the tabletop body is leveled by adjusting its angle, the self-locking structure formed by the worm gear and worm wheel can stably maintain the tabletop body in a horizontal state. Furthermore, by providing a sliding slider on the tabletop body, the movement trajectory of the second end of the second link can be effectively limited, thereby accurately controlling the distance between the second end of the second link and the second end of the first link to control the horizontal angle of the tabletop body. In addition, the rotational connection between the slider and the second end of the second link prevents the second link from jamming.

[0022] In some embodiments, the plurality of linkage groups include a first linkage group and a second linkage group arranged at intervals along the length direction of the table body. The self-locking transmission group has two groups, namely a first self-locking transmission group and a second self-locking transmission group. The second transmission unit further includes a synchronous shaft. The synchronous shaft is connected to the second linkage of the first linkage group through the first self-locking transmission group and to the second linkage of the second linkage group through the second self-locking transmission group. The worm gears of the first self-locking transmission group and the second self-locking transmission group are both fixed on the synchronous shaft. When the drive motor is connected to the second transmission unit, the drive motor is connected to the synchronous shaft.

[0023] In the above technical solution, the drive motor can simultaneously deliver driving force to the second link of the first link group and the second link group to ensure that the second link of the first link group and the second link group can move synchronously, thereby improving the stability of the table body's adjustment angle.

[0024] In some embodiments, the plurality of linkage groups include a first linkage group and a second linkage group arranged at intervals along the length direction of the tabletop body. Along the length direction of the tabletop, the first transmission unit has two distributed on opposite sides of the drive motor. The drive motor is connected to the first link of the first linkage group through the first transmission unit on one side, and is connected to the first link of the second linkage group through the first transmission unit on the other side.

[0025] In the above technical solution, the two first transmission units facilitate the simultaneous transmission of driving force from the drive motor to the first link of the first link group and the first link of the second link group, so as to ensure that the first link of the first link group and the first link group can rotate synchronously, thereby improving the stability of the table body when switching between the open state and the folded state.

[0026] In some embodiments, the drive unit includes a first motor and a second motor, wherein the first motor is adapted to be connected to the first link via the first transmission unit, and the second motor is adapted to be connected to the second link via the second transmission unit.

[0027] The above technical solution can ensure the independent movement of the first link and the second link, ensure the reliability of the table opening and closing and angle adjustment, and facilitate the simplification of the first transmission unit and the second transmission unit.

[0028] Secondly, this application provides a seat assembly, including: a seat body, including a seat cushion and a backrest, the lower end of the backrest being rotatably connected to the rear end of the seat cushion; the aforementioned table, and the mounting bracket being disposed on the back of the backrest.

[0029] In the above technical solution, the first transmission unit driven by the drive unit can control the table body to switch between the open state and the folded state. The second transmission unit driven by the drive unit can adjust the distance between the first end of the first link and the first end of the second link and / or the distance between the second end of the first link and the second end of the second link. When the backrest angle changes, the second transmission unit driven by the drive unit can move at least one of the first link and the second link to restore the table body 2 to a horizontal state, so as to avoid the table body tilting and affecting the normal use of the table.

[0030] Thirdly, this application provides a vehicle including the aforementioned seat assembly.

[0031] In the above technical solution, the drive unit drives the first transmission unit to control the tabletop body to switch between an open state and a retracted state. The drive unit drives the second transmission unit to adjust the distance between the first end of the first link and the first end of the second link, and / or the distance between the second end of the first link and the second end of the second link. When the backrest angle changes, the drive unit drives the second transmission unit to move at least one of the first and second links, so that the tabletop body 2 returns to a horizontal state, thereby preventing the tabletop body from tilting and affecting the normal use of the tabletop. Additional aspects and advantages of this utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a tabletop provided in an embodiment of this application, wherein the tabletop body is in an open state; Figure 2 This is a schematic diagram of the internal structure of a tabletop provided in an embodiment of this application, wherein the tabletop body is in an open state; Figure 3 yes Figure 2 Top view; Figure 4 This is a partial structural schematic diagram of a tabletop provided in an embodiment of this application, wherein the tabletop body is in a stowed state; Figure 5 This is a schematic diagram of a first output gear and an output shaft provided in an embodiment of this application; Figure 6 This is a schematic diagram of a first input gear provided in an embodiment of this application; Figure 7 This is a schematic diagram of the second output gear provided in one embodiment of this application; Figure 8 This is a schematic diagram of the second input gear provided in an embodiment of this application; Figure 9 yes Figure 4 A schematic diagram showing the engagement of the first output gear, the first input gear, the second output gear, and the second input gear. Figure 10 This is a partial structural schematic diagram of a tabletop provided in an embodiment of this application, wherein the tabletop body is in an open state and the drive motor is in an open / close control state; Figure 11 yes Figure 10 A schematic diagram showing the engagement of the first output gear, the first input gear, the second output gear, and the second input gear. Figure 12 This is a partial structural schematic diagram of a tabletop provided in an embodiment of this application, wherein the tabletop body is in an open state and the drive motor is in an angle adjustment state; Figure 13 yes Figure 12 A schematic diagram showing the engagement of the first output gear, the first input gear, the second output gear, and the second input gear.

[0033] Explanation of reference numerals in the attached figures: 100. Tabletop; 1. Install the bracket; 2. Tabletop body; 21. Top cover; 22. Bottom cover; 23. Frame; 24. Decorative strips; 3. Linkage group; 3a. First linkage group; 3b. Second linkage group; 31. First link; 32. Second link; 4. Drive unit; 411. Output shaft; 5. First transmission unit; 51. First output gear; 52. First input gear; 53. Transmission shaft; 6. Second transmission unit; 61. Second output gear; 62. Second input gear; 63. Self-locking transmission assembly; 631. Worm; 632. Worm wheel; 633. Slider; 3331. Mating gear; 64. First transmission gear; 65. Second transmission gear; 66. Synchronous shaft. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0035] Firstly, such as Figures 1-3As shown, this application provides a tabletop 100, including: a mounting bracket 1, a tabletop body 2, multiple linkage groups 3, and an adjustment mechanism. The multiple linkage groups 3 are arranged along the length direction of the tabletop body 2. The tabletop body 2 is connected to the mounting bracket 1 through the multiple linkage groups 3, which can improve the reliability of the connection between the tabletop body 2 and the mounting bracket 1. The linkage group 3 includes a first linkage 31 and a second linkage 32. The first end of the first linkage 31 and the first end of the second linkage 32 are both connected to the mounting bracket 1 and are movable relative to the mounting bracket 1. The second end of the first linkage 31 and the second end of the second linkage 32 are both connected to the tabletop body 2 and are movable relative to the tabletop body 2. The adjustment mechanism includes a drive unit 4, a first transmission unit 5, and a second transmission unit 6. The drive unit 4 is adapted to be transmittedly connected to at least one of the first linkage 31 and the second linkage 32 through the first transmission unit 5, and is used to drive at least one of the first linkage 31 and the second linkage 32 to rotate relative to the mounting bracket 1, so as to control the tabletop body 2 to switch between an open state and a retracted state.

[0036] In other words, the drive unit 4 can control the opening or closing of the table body 2 through the transmission of the first transmission unit 5. The open state of the table body 2 means that the table body 2 is unfolded so that the user can place items on the table body 2. The closed state of the table body 2 means that the table body 2 is closed, such as making the table body 2 close to the storage area to increase the user's activity space and facilitate getting on and off the vehicle, etc.

[0037] It should be noted that the drive unit 4 can directly drive the first end of the first connecting rod 31 to rotate relative to the mounting bracket 1 via the first transmission unit 5, thereby causing the second connecting rod 32 to rotate relative to the mounting bracket 1, thus switching between the open and retracted states; or the drive unit 4 can drive the second end of the first connecting rod 31 to rotate relative to the tabletop body 2 via the first transmission unit 5, thereby causing the second connecting rod 32 to rotate relative to the tabletop body 2, thus switching between the open and retracted states; or the drive unit 4 can drive the first end of the second connecting rod 32 to rotate relative to the tabletop body 2 via the first transmission unit 5, thereby causing the first ...1 to rotate relative to the tabletop body 2, thus switching between the open and retracted states. 31 can rotate relative to the mounting bracket 1 to switch between the open and closed states; or the drive unit 4 can drive the second end of the second link 32 to rotate relative to the table body 2 through the first transmission unit 5, thereby causing the first link 31 to rotate relative to the table body 2 to switch between the open and closed states; or the drive unit 4 can drive the first link 31 and the second link 32 to rotate relative to the mounting bracket 1 or the table body 2 through the first transmission unit 5 to switch between the open and closed states, etc. Here, the driving relationship between the adjustment mechanism and the first link 31 and the second link 32 is not specifically limited.

[0038] Furthermore, the drive unit 4 is adapted to be connected to at least one of the first link 31 and the second link 32 via the second transmission unit 6, and is used to adjust the distance between the first end of the first link 31 and the first end of the second link 32 and / or the distance between the second end of the first link 31 and the second end of the second link 32, so as to adjust the horizontal angle of the table body 2 when it is in the open state. For ease of description, in the quadrilateral formed by the connection points of the mounting bracket 1 and the first link 31, the mounting bracket 1 and the second link 32, the table body 2 and the first link 31, and the table body 2 and the second link 32, the distance between the connection point of the mounting bracket 1 and the first link 31 and the connection point of the mounting bracket 1 and the second link 32 is defined as the first distance, and the distance between the connection point of the table body 2 and the first link 31 and the connection point of the table body 2 and the second link 32 is defined as the second distance.

[0039] Since the lengths of the first link 31 and the second link 32 remain fixed, the angle of the tabletop body 2 relative to the horizontal direction will change when either the first distance or the second distance changes. That is, when the tabletop body 2 is in the open state, the drive unit 4 can adjust the horizontal angle of the tabletop body 2 through the second transmission unit 6. Therefore, when the tilt angle of the mounting bracket 1 changes, such as when the tilt angle of the backrest changes causing the tilt angle of the mounting bracket 1 to also change, the drive unit 4 can drive the second transmission unit 6 to move at least one of the first link 31 and the second link 32, restoring the tabletop body 2 to a horizontal state, thus preventing the tilt of the tabletop body 2 from affecting the normal use of the tabletop 100.

[0040] Specifically, the driving unit 4 can adjust the distance between the first end of the first link 31 and the first end of the second link 32 through the second transmission unit 6 to adjust the horizontal angle of the tabletop body 2; the driving unit 4 can adjust the distance between the second end of the first link 31 and the second end of the second link 32 through the second transmission unit 6 to adjust the horizontal angle of the tabletop body 2; or the driving unit 4 can adjust the distance between the first end of the first link 31 and the first end of the second link 32, as well as the distance between the second end of the first link 31 and the second end of the second link 32, through the second transmission unit 6 to adjust the horizontal angle of the tabletop body 2.

[0041] In the above technical solution, the first transmission unit 5 driven by the drive unit 4 can control the table body 2 to switch between the open state and the folded state. The second transmission unit 6 driven by the drive unit 4 can adjust the distance between the first end of the first link 31 and the first end of the second link 32 and / or the distance between the second end of the first link 31 and the second end of the second link 32. When the backrest angle changes, the second transmission unit 6 driven by the drive unit 4 can move at least one of the first link 31 and the second link 32 to restore the table body 2 to a horizontal state, so as to avoid the table body 2 tilting and affecting the normal use of the table 100.

[0042] In some embodiments, the number of mounting brackets 1 is the same as the number of linkage groups 3 and corresponds one-to-one. That is, each mounting bracket 1 is rotatably connected to the table body 2 through the corresponding linkage group 3, which can increase the number of mounting positions of the table body 2 and improve the stability of the table body 2 in use.

[0043] In some embodiments, the drive unit 4 is adapted to be connected to the first link 31 via the first transmission unit 5, and the drive unit 4 is adapted to be connected to the second link 32 via the second transmission unit 6. That is, the drive unit 4 can drive the first link 31 to rotate relative to the mounting bracket 1 via the first transmission unit 5, controlling the tabletop body 2 to switch between an open state and a retracted state. The drive unit 4 can also drive the second link 32 to adjust the relative positional relationship between the second link 32 and the first link 31 via the second transmission unit 6, thereby adjusting the horizontal angle of the tabletop body 2. Specifically, the first transmission unit 5 and the second transmission unit 6 are respectively connected to the first link 31 and the second link 32.

[0044] Therefore, mutual interference between the transmission of the first transmission unit 5 and the second transmission unit 6 can be avoided. In addition, the layout of the adjustment mechanism can be avoided from being too compact. That is, the arrangement of the first transmission unit 5 and the second transmission unit 6 can be dispersed, which can reduce the difficulty of the transmission connection between the first transmission unit 5 and the first connecting rod 31 and the second transmission unit 6 and the second connecting rod 32, thereby reducing the installation difficulty of the adjustment mechanism.

[0045] It should be noted that this is only an example of one approach and is not a limitation on the correspondence between the first transmission unit 5 and the second transmission unit 6 and the first link 31 and the second link 32. For example, the drive unit 4 can be connected to the second link 32 through the first transmission unit 5, and the drive unit 4 can be connected to the first link 31 through the second transmission unit 6, ensuring that the first transmission unit 5 and the second transmission unit 6 correspond to two links.

[0046] In some embodiments, the drive unit 4 includes a drive motor 41, which is detachably connected to the first transmission unit 5 and detachably connected to the second transmission unit 6. When the drive motor 41 is connected to the first transmission unit 5, the drive motor 41 is connected to the first connecting rod 31 through the first transmission unit 5. When the drive motor 41 is connected to the second transmission unit 6, the drive motor 41 is connected to the second connecting rod 32 through the second transmission unit 6.

[0047] In other words, the first transmission unit 5 and the second transmission unit 6 share the same drive motor 41. Therefore, the number of drive motors 41 can be reduced, thereby reducing the installation space occupied by the adjustment mechanism and lowering the production cost of the tabletop 100. Furthermore, the drive motor 41, by engaging with the first transmission unit 5, applies a rotational driving force relative to the mounting bracket 1 to the first connecting rod 31, controlling the tabletop body 2 to switch between an open and retracted state; the drive motor 41, by engaging with the second transmission unit 6, applies a driving force to the second connecting rod 32, adjusting the horizontal angle of the tabletop body 2 by adjusting the relative position of the second connecting rod 32 and the first connecting rod 31. Therefore, it can be ensured that the adjustment mechanism can stably control the opening and closing of the tabletop body 2 and adjust its horizontal angle.

[0048] In some embodiments, such as Figure 4 , Figure 10 and Figure 12 As shown, the adjustment mechanism has an opening / closing control state and an angle adjustment state. In the opening / closing control state, the drive motor 41 is connected to the first transmission unit 5 and disconnected from the second transmission unit 6. In the angle adjustment state, the drive motor 41 is connected to the second transmission unit 6 and disconnected from the first transmission unit 5. That is, in the opening / closing control state, by connecting the drive motor 41 to the first transmission unit 5 and disconnecting it from the second transmission unit 6, a driving force relative to the mounting bracket 1 is applied to the first connecting rod 31 to control the switching between the open and folded states of the tabletop body 2, while preventing the second connecting rod 32 from moving and affecting the accuracy and efficiency of opening or folding the tabletop body 2. Furthermore, in the angle adjustment state, by connecting the drive motor 41 to the second transmission unit 6 and disconnecting it from the first transmission unit 5, a driving force is applied to the second connecting rod 32 to adjust the horizontal angle of the tabletop body 2, while preventing the first transmission unit 5 from rotating the first connecting rod 31 and affecting the angle adjustment accuracy. In other words, when the drive motor 41 is in the opening and closing control state, it controls the table body 2 to switch between the open state and the storage state only through the first transmission unit 5. When the drive motor 41 is in the angle adjustment state, it adjusts the horizontal angle of the table body 2 only through the second transmission unit 6, thereby ensuring that the opening and closing control and angle adjustment of the table body 2 can be carried out independently and reliably.

[0049] In some embodiments, such as Figure 4-9 , Figure 11 and Figure 13 As shown, the first transmission unit 5 includes a first output gear 51 and a first input gear 52. The first output gear 51 is located on the output shaft 411 of the drive unit 4, and the first input gear 52 is connected to the first connecting rod 31. The second transmission unit 6 includes a second output gear 61 and a second input gear 62. The second output gear 61 is located on the output shaft 411 of the drive unit 4, and the second input gear 62 is connected to the second connecting rod 32. The first output gear 51, the first input gear 52, the second output gear 61, and the second input gear 62 are all half-side gears. In the opening and closing control state, the first output gear 51 meshes with the first input gear 52, and the second output gear 61 and the second input gear 62 can rotate relatively independently. In the angle adjustment state, the second output gear 61 meshes with the second input gear 62, and the first output gear 51 and the first input gear 52 can rotate relatively independently.

[0050] It should be noted that the term "half-gear" here refers to a portion of the outer circumferential surface of the gear being smooth, meaning that some areas lack teeth. In other words, when the teeth of the first output gear 51 mesh with the teeth of the first input gear 52, the smooth area on the outer circumferential surface of the second output gear 61 allows the second output gear 61 to rotate independently relative to the second input gear 62; that is, at this time, the second output gear 61 is disengaged from the second input gear 62. Similarly, when the second output gear 61 meshes with the second input gear 62, the smooth area on the outer circumferential surface of the first output gear 51 allows the first output gear 51 to rotate independently relative to the first input gear 52; that is, at this time, the first output gear 51 is disengaged from the first input gear 52.

[0051] Therefore, by selecting half-gears as the first output gear 51, the first input gear 52, the second output gear 61, and the second input gear 62, and by adjusting the meshing areas of the first output gear 51 and the first input gear 52, as well as the meshing areas of the second output gear 61 and the second input gear 62, the rotation of the output shaft 411 of the drive motor 41 can control the connection or separation of the drive motor 41 with the first transmission unit 5 and the second transmission unit 6. This can simplify the adjustment mechanism, reduce the installation space occupied by the adjustment mechanism, and lower production costs.

[0052] It should be noted that this limitation on the types of the first output gear 51, the first input gear 52, the second output gear 61, and the second input gear 62 is only to meet the requirement that the drive motor 41 is disengaged from the second transmission unit 6 when engaged with the first transmission unit 5, and disengaged from the first transmission unit 5 when engaged with the second transmission unit 6. It is not a limitation on the switching method of the connection state between the drive motor 41 and the first transmission unit 5 and the second transmission unit 6. For example, the engagement or disengagement of the drive motor 41 from the first transmission unit 5 and the second transmission unit 6 can also be controlled by a clutch or other mechanism, which will not be elaborated here.

[0053] In some embodiments, such as Figure 3 and Figure 4 As shown, the second transmission unit 6 also includes a first transmission gear 64 and a second transmission gear 65. The first transmission gear 64 is connected to the first input gear 52 and meshes with the second transmission gear 65. The second transmission gear 65 is connected to the second connecting rod 32. The transmission ratio of the first transmission gear 64 and the second transmission gear 65 is less than 1. That is, the drive motor 41 delivers driving force to the second connecting rod 32 sequentially through the first transmission gear 64 and the second transmission gear 65. The rotational speed of the first transmission gear 64 is less than the rotational speed of the second transmission gear 65. In other words, the first transmission gear 64 and the second transmission gear 65 cooperate to form a speed-increasing mechanism.

[0054] Therefore, the speed-increasing mechanism formed by the cooperation of the first transmission gear 64 and the second transmission gear 65 can reduce the rotation angle range when the drive shaft of the drive unit 4 drives the second link 32 to move, based on the fixed travel of the second end of the second link 32, so as to meet the requirement that the first output gear 51, the first input gear 52, the second output gear 61 and the second input gear 62 are half-side gears.

[0055] In some embodiments, the drive motor 41, the first transmission unit 5, and the second transmission unit 6 are all disposed on the table body 2. The drive motor 41 is adapted to be connected to the second end of the first connecting rod 31 through the first transmission unit 5 to drive the first connecting rod 31 to rotate relative to the table body 2. The drive motor 41 is adapted to be connected to the second end of the second connecting rod 32 through the second transmission unit 6 to drive the second end of the second connecting rod 32 to approach or move away from the second end of the first connecting rod 31.

[0056] Therefore, since the drive motor 41, the first transmission unit 5 and the second transmission unit 6 are all installed on the table body 2, when installing the table 100, only the connecting rod group 3 and the mounting bracket 1 need to be connected, which can simplify the installation process of the table 100 and improve the installation efficiency of the table 100.

[0057] In some embodiments, the linkage 3 is located at the end of the table body 2 along the length direction, the drive motor 41 is located at the middle of the table body 2 along the length direction, at least a portion of the first transmission unit 5 and the second transmission unit 6 are located between the drive motor 41 and the linkage 3, and the first transmission unit 5 and the second transmission unit 6 are arranged along the width direction of the table body 2.

[0058] Therefore, it facilitates the connection between the linkage group 3 and the table body 2, as well as the connection between the drive motor 41 and the linkage group 3. In addition, it can reduce the space occupied by the adjustment mechanism in the thickness direction of the table body 2, resulting in a compact and reasonable layout.

[0059] In some embodiments, the second transmission unit 6 further includes a self-locking transmission assembly 63, which includes a worm 631, a worm wheel 632, and a slider 633. The worm 631 is drivenly connected to the output shaft 411 of the drive unit 4 and meshes with the worm wheel 632. When the drive motor 41 is drivenly connected to the second transmission unit 6, the worm 631 is drivenly connected to the output shaft 411 of the drive motor 41. The slider 633 is slidably disposed on the table body 2 along the direction of the second end of the first connecting rod 31, and the second end of the second connecting rod 32 is rotatably disposed on the slider 633. The slider 633 has a mating tooth 6331 formed on it, and the worm wheel 632 meshes with the mating tooth 6331.

[0060] In other words, the drive unit 4 transmits driving force to the second connecting rod 32 through the worm 631 and worm wheel 632, wherein the cooperation of the worm 631 and worm wheel 632 can form a self-locking structure. Furthermore, the drive unit 4 can use the worm 631 and worm wheel 632 to move the slider 633 closer to or away from the second end of the first connecting rod 31, thereby causing the second end of the second connecting rod 32 to move closer to or away from the second end of the first connecting rod 31 via the slider 633.

[0061] Therefore, after the tabletop body 2 is leveled by adjusting its angle, the self-locking structure formed by the worm gear 631 and worm wheel 632 can stably maintain the tabletop body 2 in a horizontal state. Furthermore, by providing a slidable slider 633 on the tabletop body 2, the movement trajectory of the second end of the second link 32 can be effectively limited, thereby accurately controlling the distance between the second end of the second link 32 and the second end of the first link 31, thus controlling the horizontal angle of the tabletop body 2. In addition, the rotatable connection between the slider 633 and the second end of the second link 32 prevents the second link 32 from jamming.

[0062] In some embodiments, the plurality of linkage groups 3 include a first linkage group 3a and a second linkage group 3b arranged at intervals along the length direction of the table body 2. The self-locking transmission group 63 is provided in two groups, namely the first self-locking transmission group and the second self-locking transmission group. The second transmission unit 6 also includes a synchronous shaft 66. The synchronous shaft 66 is connected to the second link 32 of the first linkage group 3a through the first self-locking transmission group and to the second link 32 of the second linkage group 3b through the second self-locking transmission group. The worm gears 631 of the first self-locking transmission group and the second self-locking transmission group are both fixed on the synchronous shaft 66. When the drive motor 41 is connected to the second transmission unit 6, the drive motor 41 is connected to the synchronous shaft 66. In other words, when the drive motor 41 is connected to the second transmission unit 6 and drives the worm 631 to rotate, the worm 631 drives the worms 631 of the first self-locking transmission group and the second self-locking transmission group to rotate synchronously through the synchronous shaft 66. This causes the second end of the second link 32 of the first link group 3a and the second link group 3b to move closer to or further away from the second end of the first link 31. That is, the drive motor 41 can simultaneously transmit driving force to the second link 32 of the first link group 3a and the second link 32 of the second link group 3b through the synchronous shaft 66.

[0063] Therefore, the drive unit 4 can simultaneously deliver driving force to the second link 32 of the first link group 3a and the second link group 3b to ensure that the second link 32 of the first link group 3a and the second link group 3b can move synchronously, thereby improving the stability of the table body 2 in adjusting the angle.

[0064] In some embodiments, the plurality of linkage groups 3 include a first linkage group 3a and a second linkage group 3b arranged at intervals along the length direction of the tabletop body 2. Along the length direction of the tabletop 100, the first transmission unit 5 is provided with two units distributed on opposite sides of the drive motor 41. The drive motor 41 is connected to the first link 31 of the first linkage group 3a through the first transmission unit 5 on one side, and is connected to the first link 31 of the second linkage group 3b through the first transmission unit 5 on the other side. That is, the drive motor 41 can transmit driving force to the first link 31 of the first linkage group 3a through one of the first transmission units 5, and at the same time, the drive motor 41 can transmit driving force to the first link 31 of the second linkage group 3b through the other first transmission unit 5.

[0065] Therefore, by using two first transmission units 5, the drive motor 41 can simultaneously deliver driving force to the first link 31 of the first link group 3a and the second link group 3b, so as to ensure that the first link 31 of the first link group 3a and the second link group 3b can rotate synchronously, thereby improving the stability of the table body 2 when switching between the open state and the storage state.

[0066] In some embodiments, the drive unit 4 includes a first motor and a second motor. The first motor is adapted to be connected to the first link 31 via a first transmission unit 5, and the second motor is adapted to be connected to the second link 32 via a second transmission unit 6. That is, the first link 31 and the second link 32 are respectively equipped with corresponding and independent motors.

[0067] This ensures the independent movement of the first link 31 and the second link 32, guarantees the reliability of the opening and closing of the table 100 and the angle adjustment, and facilitates the simplification of the first transmission unit 5 and the second transmission unit 6.

[0068] In a specific example, the left end of the tabletop body 2 is connected to the left-side mounting bracket 1 via a first link group 3a, and the right end of the tabletop body 2 is connected to the right-side mounting bracket 1 via a second link group 3b. The length of the first link 31 is greater than the length of the second link 32. The first end of the first link 31 is located above the first end of the second link 32. In the open state, the second end of the first link 31 is located in front of the second end of the second link 32. The length direction of the tabletop body 2 is left-right. The tabletop body 2 includes an upper cover 21, a lower cover 22, a frame 23, and a decorative strip 24. The upper cover 21 and the lower cover 22 are respectively installed on the upper and lower sides of the frame 23. The decorative strip 24 is located at the rear end of the frame 23. The adjustment mechanism is located on the frame 23 and between the upper cover 21 and the lower cover 22 to better conceal the adjustment mechanism.

[0069] The drive unit 4 is located in the middle of the frame 23 in the left-right direction and includes a drive motor 41. The output shaft 411 of the drive motor 41 extends in the left-right direction, and both ends of the output shaft 411 extend out of the drive motor 41. The first transmission unit 5 includes a first output gear 51, a first input gear 52 and a transmission shaft 53. The first transmission unit 5 has two gears distributed in the left-right direction on the left and right sides of the drive unit 4. The first output gear 51 is located on the output shaft 411 of the drive motor 41. The transmission shaft 53 is rotatably located on the frame 23. One end of the transmission shaft 53 is fixedly connected to the first input gear 52, and the other end of the transmission shaft 53 is fixedly connected to the first end of the first connecting rod 31. The second transmission unit 6 includes a second output gear 61, a second input gear 62, a first transmission gear 64, a self-locking transmission group 63, a second transmission gear 65, and a synchronous shaft 66. The second output gear 61 is located on the output shaft 411 of the drive motor 41. The second input gear 62 is coaxially and fixedly connected to the first transmission gear 64 and rotatably mounted on the frame 23. The self-locking transmission group 63 includes a worm gear 631, a worm wheel 632, and a slider 633. The self-locking transmission group 63 has two sets located at the left and right ends of the synchronous shaft 66, along with the second transmission gear 65 and the two sets of self-locking transmission groups 63. The worm gears 631 are all mounted on the synchronous shaft 66, which is rotatably mounted on the frame 23. The synchronous shaft 66 rotates in the left-right direction. The two worm gears 631 are located on the left and right sides of the second transmission gear 65, respectively. The worm wheel 632 meshes with the worm gears 631 and the mating teeth 6331 on the slider 633. The two sliders 633 are slidably mounted on the left and right ends of the frame 23, respectively. The second end of the left second connecting rod 32 is rotatably mounted on the left slider 633, and the second end of the right second connecting rod 32 is rotatably mounted on the right slider 633.

[0070] Specifically, the output shaft 411 of the drive motor 41 rotates to the opening and closing control state, the first output gear 51 meshes with the first input gear 52, and drives the second end of the first connecting rod 31 to rotate relative to the table body 2 through the transmission shaft 53, so as to realize the switching between the table body 2 in the storage state and the open state.

[0071] In the open state, when the backrest angle changes, the output shaft 411 of the drive motor 41 rotates to the angle adjustment state, and the second output gear 61 meshes with the second input gear 62. When the rear end of the tabletop body 2 is high, the drive motor 41 drives the second ends of the second connecting rods 32 on both sides to move backward through the second transmission unit 6, thereby lowering the height of the rear end of the tabletop body 2 and restoring the tabletop body 2 to a horizontal state; when the rear end of the tabletop body 2 is low, the drive motor 41 drives the second ends of the second connecting rods 32 on both sides to move forward through the second transmission unit 6, thereby raising the height of the rear end of the tabletop body 2 and restoring the tabletop body 2 to a horizontal state. The rotation angle and direction of the drive unit 4 can be obtained based on the calibrated speed and direction of the backrest angle adjustment.

[0072] Secondly, this application provides a seat assembly, including: a seat body and a table 100. The seat body includes a seat cushion and a backrest. The lower end of the backrest is rotatably connected to the rear end of the seat cushion so as to adjust the tilt angle of the backrest according to the passenger's needs. The table 100 is mounted on the back of the backrest.

[0073] In the above technical solution, the first transmission unit 5 driven by the drive unit 4 can control the table body 2 to switch between the open state and the folded state. The second transmission unit 6 driven by the drive unit 4 can adjust the distance between the first end of the first link 31 and the first end of the second link 32 and / or the distance between the second end of the first link 31 and the second end of the second link 32. When the backrest angle changes, the second transmission unit 6 driven by the drive unit 4 can move at least one of the first link 31 and the second link 32 to restore the table body 2 to a horizontal state, so as to avoid the table body 2 tilting and affecting the normal use of the table 100.

[0074] Thirdly, this application provides a vehicle including: a seat according to any of the above embodiments.

[0075] In the above technical solution, the first transmission unit 5 driven by the drive unit 4 can control the table body 2 to switch between the open state and the folded state. The second transmission unit 6 driven by the drive unit 4 can adjust the distance between the first end of the first link 31 and the first end of the second link 32 and / or the distance between the second end of the first link 31 and the second end of the second link 32. When the backrest angle changes, the second transmission unit 6 driven by the drive unit 4 can move at least one of the first link 31 and the second link 32 to restore the table body 2 to a horizontal state, so as to avoid the table body 2 tilting and affecting the normal use of the table 100.

[0076] In this application, "multiple" refers to two or more.

[0077] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0078] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if any) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0079] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0080] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if a method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if a method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0081] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tabletop, characterized in that, include: Mounting bracket; The tabletop body and multiple linkage groups are arranged along the length of the tabletop body. The tabletop body is connected to the mounting bracket through the multiple linkage groups. Each linkage group includes a first linkage and a second linkage. The first end of the first linkage and the first end of the second linkage are both connected to the mounting bracket and are movable relative to the mounting bracket. The second end of the first linkage and the second end of the second linkage are both connected to the tabletop body and are movable relative to the tabletop body. The adjustment mechanism includes a drive unit, a first transmission unit, and a second transmission unit, wherein... The drive unit is adapted to be connected to at least one of the first link and the second link via the first transmission unit, and is used to drive at least one of the first link and the second link to rotate relative to the mounting bracket, so as to control the table body to switch between an open state and a retracted state; The drive unit is adapted to be connected to at least one of the first link and the second link via the second transmission unit, and is used to adjust the distance between the first end of the first link and the first end of the second link and / or the distance between the second end of the first link and the second end of the second link, so as to adjust the horizontal angle of the table body when the open state is reached.

2. The tabletop according to claim 1, characterized in that, The drive unit is adapted to be connected to the first link via the first transmission unit, and the drive unit is adapted to be connected to the second link via the second transmission unit.

3. The tabletop according to claim 2, characterized in that, The drive unit includes a drive motor, which is detachably connected to the first transmission unit and detachably connected to the second transmission unit; wherein... When the drive motor is connected to the first transmission unit, the drive motor is connected to the first connecting rod through the first transmission unit; when the drive motor is connected to the second transmission unit, the drive motor is connected to the second connecting rod through the second transmission unit.

4. The tabletop according to claim 3, characterized in that, The drive motor has an opening / closing control state and an angle adjustment state. In the opening / closing control state, the drive motor is connected to the first transmission unit and disconnected from the second transmission unit. In the angle adjustment state, the drive motor is connected to the second transmission unit and disconnected from the first transmission unit.

5. The tabletop according to claim 4, characterized in that, The first transmission unit includes a first output gear and a first input gear. The first output gear is located on the output shaft of the drive motor, and the first input gear is connected to the first connecting rod. The second transmission unit includes a second output gear and a second input gear. The second output gear is located on the output shaft of the drive motor, and the second input gear is connected to the second connecting rod. The first output gear, the first input gear, the second output gear, and the second input gear are all half-gears. In the opening and closing control state, the first output gear meshes with the first input gear, and the second output gear and the second input gear can rotate relatively independently. In the angle adjustment state, the second output gear meshes with the second input gear, and the first output gear and the first input gear can rotate relatively independently.

6. The tabletop according to claim 5, characterized in that, The second transmission unit further includes a first transmission gear and a second transmission gear. The first transmission gear is connected to the first input gear and meshes with the second transmission gear. The second transmission gear is connected to the second connecting rod. The transmission ratio between the first transmission gear and the second transmission gear is less than 1.

7. The tabletop according to claim 3, characterized in that, The drive motor, the first transmission unit, and the second transmission unit are all located on the table body. The drive motor is adapted to be connected to the second end of the first connecting rod through the first transmission unit to drive the first connecting rod to rotate relative to the table body. The drive motor is adapted to be connected to the second end of the second link via the second transmission unit, so as to drive the second end of the second link to approach or move away from the second end of the first link.

8. The tabletop according to claim 7, characterized in that, The linkage assembly is located at the end of the tabletop body along the length direction, the drive motor is located at the middle of the tabletop body along the length direction, at least a portion of the first transmission unit and the second transmission unit are located between the drive motor and the linkage assembly, and the first transmission unit and the second transmission unit are arranged along the width direction of the tabletop body.

9. The tabletop according to claim 7, characterized in that, The second transmission unit further includes a self-locking transmission assembly, which includes a worm, a worm wheel, and a slider. The worm meshes with the worm wheel. When the drive motor is connected to the second transmission unit, the worm is connected to the output shaft of the drive motor. The slider is slidably mounted on the table body along a direction close to or away from the second end of the first connecting rod. The second end of the second connecting rod is rotatably mounted on the slider. The slider has a mating tooth, and the worm wheel meshes with the mating tooth.

10. The tabletop according to claim 9, characterized in that, The plurality of linkage groups include a first linkage group and a second linkage group arranged at intervals along the length direction of the table body. The self-locking transmission group has two groups, namely a first self-locking transmission group and a second self-locking transmission group. The second transmission unit also includes a synchronous shaft. The synchronous shaft is connected to the second linkage of the first linkage group through the first self-locking transmission group and to the second linkage of the second linkage group through the second self-locking transmission group. The worm gears of the first self-locking transmission group and the second self-locking transmission group are both fixed on the synchronous shaft. When the drive motor is connected to the second transmission unit, the drive motor is connected to the synchronous shaft.

11. The tabletop according to claim 7, characterized in that, The plurality of linkage groups include a first linkage group and a second linkage group arranged at intervals along the length direction of the table body. Along the length direction of the table, the first transmission unit has two distributed on opposite sides of the drive motor. The drive motor is connected to the first linkage group of the first linkage group through the first transmission unit on one side, and is connected to the first linkage group of the second linkage group through the first transmission unit on the other side.

12. The tabletop according to claim 2, characterized in that, The drive unit includes a first motor and a second motor. The first motor is adapted to be connected to the first connecting rod via the first transmission unit, and the second motor is adapted to be connected to the second connecting rod via the second transmission unit.

13. A seat assembly, characterized in that, include: The seat body includes a seat cushion and a backrest, wherein the lower end of the backrest is rotatably connected to the rear end of the seat cushion; The tabletop according to any one of claims 1-12, wherein the mounting bracket is disposed on the back of the backrest.

14. A vehicle, characterized in that, include: The seat assembly according to claim 13.

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