Table plate assembly, seat assembly with table plate assembly and vehicle

Abstract

The utility model provides a table plate assembly, a seat assembly with the table plate assembly and a vehicle, and relates to the technical field of table plates. The table board assembly comprises a table board; the transmission mechanism at least comprises an inner transmission part and an outer transmission part, the outer transmission part is rotatably connected with the table plate, and the inner transmission part is movably connected with the table plate, so that the inner transmission part and the outer transmission part have a mutually connected state and a mutually separated state; the connecting rod mechanism comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod and the first end of the second connecting rod are both used for being movably connected with a target object, the second end of the first connecting rod is connected with the outer transmission part, the second end of the second connecting rod is connected with the table plate, and the table plate has an unlocking state in which the table plate freely rotates relative to the outer transmission part; and the table plate has a locking state which is fixed relative to the outer transmission part. According to the utility model, the problems of high cost and low convenience of table plate angle adjustment in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of table technology, and more specifically, to a table assembly and a seat assembly and vehicle having the same. Background Technology

[0002] Small tables are highly practical products for placing items. In existing technologies, there are tables driven by motors to achieve adjustable table angles, but motor drives are expensive and inconvenient to operate. In addition, because they rotate around an axis, their placement position is high, making it difficult to arrange seats. There are also four-link small tables that adjust the table angle by adjusting the length of the fixed side linkage, but this is expensive, not straightforward, and not convenient.

[0003] There is currently no effective solution to the aforementioned technical problems. Utility Model Content

[0004] The main objective of this utility model is to provide a table assembly and a seat assembly and vehicle having the same, so as to solve the problems of high cost and low convenience of table angle adjustment in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a tabletop assembly is provided, comprising: a tabletop; a transmission mechanism, the transmission mechanism including at least an inner transmission member and an outer transmission member, wherein the outer transmission member is rotatably connected to the tabletop, and the inner transmission member is movably connected to the tabletop, so that the inner transmission member and the outer transmission member have a connected state and a separated state; a linkage mechanism including a first link and a second link, the first end of the first link and the first end of the second link being movably connected to a target object, the second end of the first link being connected to the outer transmission member, and the second end of the second link being connected to the tabletop, the tabletop having an unlocked state in which it can freely rotate relative to the outer transmission member, and a locked state in which the tabletop is fixed relative to the outer transmission member; wherein, when the inner transmission member and the outer transmission member are in a separated state, the tabletop is in an unlocked state, and when the inner transmission member and the outer transmission member are in a connected state, the tabletop is in a locked state.

[0006] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: The transmission mechanism is connected to the tabletop through an inner transmission component and an outer transmission component, and is also connected to the first link in the linkage mechanism through the outer transmission component. By manipulating the transmission mechanism, the inner transmission component and the outer transmission component can be switched between a connected state and a separated state. When the inner transmission component and the outer transmission component are in a separated state, the inner transmission component and the outer transmission component can be rotated by adjusting the movement of the tabletop (such as manually lifting or pressing the tabletop). At the same time, the outer transmission component is also connected to the target object through the first link, and the tabletop is connected to the target object through the second link. Thus, while adjusting the movement of the tabletop, the relative movement between the tabletop and the target object can be realized (i.e., the angle of the tabletop relative to the target object can be movable), thereby realizing the adjustment of the opening angle of the tabletop relative to the target object. When the internal and external transmission components are connected by manipulating the transmission mechanism, they work as a single unit, and the tabletop is locked. This means the tabletop is relatively stationary with respect to both the internal and external transmission components, as well as the transmission mechanism, tabletop, and linkage mechanism. This fixes the tabletop's position relative to the target object. The tabletop can rotate freely in the unlocked state. Once adjusted to a suitable angle, the connection between the internal and external transmission components locks the tabletop in place, allowing for adjustable tabletop angles and ensuring stability during use.

[0007] Furthermore, the table assembly also includes a drive unit connected to a transmission mechanism, which is movably arranged along the height direction of the table to allow the inner and outer transmission components to switch between a connected state and a disconnected state.

[0008] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: when the tabletop angle needs to be adjusted, the up and down movement of the driving component causes the internal structure of the transmission mechanism to change and generate driving force, which drives the separation and connection of the inner and outer transmission components of the transmission mechanism, thereby unlocking and locking the tabletop. The tabletop angle can be easily adjusted by operating the driving component, which improves the convenience and efficiency of operation.

[0009] Furthermore, the transmission mechanism also includes: a transmission rod having a first end and a second end arranged opposite to each other along the axial direction of the transmission rod, wherein the first end of the transmission rod is connected to the end of the inner transmission member away from the outer transmission member, and the second end of the transmission rod is configured to cooperate with the driving member; wherein, when the driving member moves downward along the height direction of the table, it can drive the transmission rod to move in the direction away from the outer transmission member, thereby driving the inner transmission member to move to the separation state.

[0010] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: by utilizing the movement of the transmission rod, the movement of the driving component is converted into the movement of the internal transmission component, realizing the separation of the internal transmission component and the external transmission component, making the movement of the driving component more direct and efficient, and reducing the complexity of operation.

[0011] Furthermore, a mating space is provided at the second end of the transmission rod, and the driving component has a mating section that extends into the mating space. The radial cross-sectional area of ​​the mating section is gradually reduced along the direction close to the transmission rod. The outer peripheral surface of part of the mating section contacts the side wall of the mating space away from the external transmission component. As the mating section moves downward along the height direction of the table, the transmission rod moves in the direction away from the external transmission component.

[0012] The above-described optional embodiments of this application achieve the following beneficial effects: the radial cross-sectional area of ​​the mating section gradually decreases along the direction close to the transmission rod. This wedge-shaped design allows the contact point between the mating section and the transmission rod to gradually move axially as the driving component moves downwards along the height of the table, thereby generating an effect that pushes the transmission rod to move away from the external transmission component. The wedge-shaped fit between the mating section and the mating space improves operational convenience and efficiency. The wedge-shaped contact between the transmission rod and the driving component avoids direct axial force transmission, reduces wear and energy loss during operation, and improves the reliability and service life of the system.

[0013] Further, the tabletop includes: a tabletop frame, on which a first support plate protrudes and has a first support hole; a fixed baffle, protruding from the tabletop frame, the fixed baffle and the first support plate being disposed opposite to each other along the direction of movement of the inner transmission member, the fixed baffle having a fixed hole; wherein, at least a portion of the outer transmission member extends through the first support hole to a side away from the fixed baffle and is connected to the second end of the first connecting rod, the outer transmission member being rotatably disposed relative to the first support hole; at least a portion of the inner transmission member extends through the fixed hole to a side away from the first support plate and is connected to the first end of the transmission rod, the inner transmission member and the fixed hole being fixedly disposed relative to each other in the circumferential direction of the fixed hole, wherein the inner transmission member is movably disposed along the axial direction of the fixed hole, so that the inner transmission member and the outer transmission member can switch between a connected state and a separated state.

[0014] The above-described optional embodiments of this application achieve the following beneficial effects: A first support plate protrudes from the table frame to support and fix the external transmission component, ensuring that the external transmission component can rotate freely within a certain range without affecting the stability and structural strength of the entire table. A first support hole is provided on the first support plate, allowing the external transmission component to pass through the hole and connect to the first connecting rod. The fact that the external transmission component can rotate within the first support hole allows for adjustment of the table angle. A fixed baffle protrudes from the table frame and is positioned opposite the first support along the axial direction of the internal transmission component. This baffle can limit the range of motion of the internal transmission component, preventing excessive axial movement and resulting in instability of the overall table structure. A fixed hole is provided on the fixed baffle, through which the internal transmission component passes and connects to the transmission rod, enabling the transmission rod to control the axial movement of the internal transmission component. When the tabletop angle does not need to be adjusted, the inner and outer transmission components are connected, restricting the free rotation of the tabletop frame. When the tabletop angle needs to be adjusted, the driving component is operated, causing its mating section to push the transmission rod to move away from the outer transmission component. This causes the inner transmission component to move along the axial direction of the fixing hole, eventually reaching a state of separation from the outer transmission component, thus achieving the adjustment of the tabletop angle.

[0015] Furthermore, the transmission mechanism also includes: a reset elastic element, one end of which is connected to a fixed baffle, and the other end of which is connected to an inner transmission element; wherein, when the inner transmission element and the outer transmission element are in a connected state, the reset elastic element is in a natural state, and when the inner transmission element moves away from the outer transmission element, the reset elastic element is in a compressed state.

[0016] The above-described optional embodiments of this application achieve the following beneficial effects: one end of the reset elastic element is connected to the fixed baffle on the table frame, and the other end is connected to the inner transmission element. When the inner transmission element and the outer transmission element are connected, the reset elastic element is in a naturally extended state, maintaining the stability of the table at a fixed angle. When the user needs to adjust the angle of the table, by operating the drive element, the inner transmission element will move along the axial direction of the fixed hole, gradually moving away from the outer transmission element. During this process, the reset elastic element is compressed due to the movement of the inner transmission element, storing a certain amount of energy. Once the user completes the adjustment of the table angle and releases the drive element, the reset elastic element will quickly return to its natural state under the action of its elastic force, thereby driving the inner transmission element back to its original contact position with the outer transmission element, realizing the locking and reset of the table angle. Preferably, the reset elastic element is a spring. By utilizing the elastic force of the reset elastic element, the internal transmission component can automatically return to the connected state with the external transmission component after being unlocked, thus achieving automatic locking of the table. This allows the table to be reset automatically after adjustment without external operation by the user, and can be automatically stabilized at the required angle, improving the convenience and safety of use.

[0017] Furthermore, a stop-fitting structure is provided at the end of the inner transmission component near the transmission rod, and a groove is provided at the first end of the transmission rod. A stop protrusion is provided on the side wall of the groove. When the first end of the transmission rod is connected to the inner transmission component, the end of the inner transmission component extends into the groove, and the stop protrusion is fitted with the stop-fitting structure.

[0018] The above-described optional embodiments of this application achieve the following beneficial effects: the stop-fitting structure matches the stop protrusion, ensuring that the movement of the inner transmission component in a specific direction is restricted and preventing excessive movement. The slot is used to accommodate the end of the inner transmission component, forming a relatively movable connection point, ensuring power transmission when the transmission rod moves axially, while maintaining stable contact with the inner transmission component. When the first end of the transmission rod is connected to the inner transmission component, the end of the inner transmission component extends into the slot of the transmission rod. At this time, the stop protrusion contacts the stop-fitting structure on the inner transmission component, restricting the circumferential movement of the inner transmission component. Thus, when the drive component is operated, driving the transmission rod to move axially, the inner transmission component will also be pushed by the stop protrusion, thereby separating from the outer transmission component and realizing free adjustment of the tabletop angle. This makes the tabletop adjustment more stable and reliable, avoiding accidental unlocking due to external forces during use.

[0019] Furthermore, a limiting protrusion is provided on the outer circumferential surface of the inner transmission component. The limiting protrusion extends along the axial direction of the inner transmission component, and a limiting groove is provided on the inner wall of the fixing hole. The limiting groove is matched with the limiting protrusion.

[0020] The above-described optional embodiments of this application achieve the following beneficial effects: the limiting protrusion can match the limiting groove on the inner wall of the fixing hole, restricting the rotation of the inner transmission component in the circumferential direction. Simultaneously, the limiting groove ensures accurate engagement of the limiting protrusion when the inner transmission component moves axially. During tabletop angle adjustment, the downward movement of the driving component is transmitted to the inner transmission component via the transmission rod, causing it to move axially. During this process, the limiting protrusion remains in contact with the limiting groove on the inner wall of the fixing hole, preventing circumferential rotation of the inner transmission component during movement and ensuring proper separation between the inner and outer transmission components. When the tabletop angle is adjusted, the reset elastic component pushes the inner transmission component back to its original position, and the limiting protrusion re-engages in the limiting groove. At this point, the inner and outer transmission components re-engage, locking the tabletop angle and preventing unexpected changes in the tabletop angle due to circumferential force. Through the cooperation of the limiting protrusion and the limiting groove, circumferential rotation of the inner transmission component during axial movement is effectively prevented, ensuring the stability of the tabletop angle adjustment.

[0021] Furthermore, the inner transmission component has a positioning groove at one end facing the outer transmission component, and the outer transmission component has a positioning protrusion at one end facing the inner transmission component. When the inner transmission component and the outer transmission component are in a connected state, the positioning protrusion extends into the positioning groove.

[0022] The above-described optional embodiments of this application achieve the following beneficial effects: The cooperation between the positioning groove and the positioning protrusion ensures a stable connection between the inner and outer transmission components in the connected state, thereby locking the tabletop and ensuring it remains stably at the desired angle after adjustment, improving convenience and safety. When the inner and outer transmission components are connected, the positioning protrusion embeds into the positioning groove of the inner transmission component, forming a stable connection structure. This prevents unnecessary angular displacement of the tabletop due to external forces during use, ensuring the reliability and safety of the tabletop at a fixed angle. When the tabletop requires angle adjustment, the drive component pushes the transmission rod, causing the inner transmission component to move axially. The positioning protrusion disengages from the positioning groove, allowing the outer transmission component to rotate freely relative to the inner transmission component. The user can then adjust the tabletop to the desired angle. After adjustment, the reset elastic component pushes the inner transmission component back to its initial position, and the positioning protrusion re-enters the positioning groove.

[0023] Furthermore, the end face of the inner transmission component facing the outer transmission component is provided with a first meshing tooth, and the end face of the outer transmission component facing the inner transmission component is provided with a second meshing tooth. When the inner transmission component and the outer transmission component are in a connected state, the first meshing tooth and the second meshing tooth are meshed with each other.

[0024] The above-described optional embodiments of this application achieve the following beneficial effects: In the tabletop angle locked state, the first meshing tooth of the inner transmission component and the second meshing tooth of the outer transmission component are fully engaged. When the tabletop angle needs to be adjusted, the transmission rod is operated by the drive component to move axially, thereby pushing the inner transmission component to move axially. The first and second meshing teeth gradually separate, allowing the outer transmission component to rotate freely. At this time, the tabletop can be manually adjusted to the desired angle. Through the meshing connection of the first and second meshing teeth, the inner transmission component can accurately transmit the axial force generated during the operation of the drive component to the outer transmission component, achieving stable control of the tabletop angle. At the same time, the tooth meshing design of the inner and outer transmission components ensures precise locking of the tabletop at different tilt angles, avoiding situations where inaccurate angle adjustment affects user experience and comfort. In addition, the tooth meshing structure can withstand a large torque, maintaining the stability of the tabletop angle even when heavy objects are placed on the tabletop, improving the overall strength and durability of the tabletop adjustment system.

[0025] Furthermore, the driving member also includes an operating end face. Pressing down the driving member along the operating end face can drive the driving member to move downward along the height direction of the table. The table also includes a cover plate assembly, which has a receiving cavity. The table frame and the transmission mechanism are disposed in the receiving cavity. The cover plate assembly also has an opening communicating with the receiving cavity. At least part of the driving member is located in the opening, or at least part of the driving member extends out of the receiving cavity through the opening so that the operating end face is exposed outside the receiving cavity.

[0026] The above-described optional embodiments of this application achieve the following beneficial effects: The operating end face is positioned on the cover plate assembly or exposed outside the receiving cavity. The driving component can be operated by operating the operating end face; that is, applying downward pressure to the operating end face causes the driving component to move downwards along the height direction of the tabletop. This, in turn, drives the internal transmission component to move axially through the transmission mechanism, achieving the separation of the first and second meshing teeth. The arrangement of the cover plate assembly and the receiving cavity allows the tabletop frame, transmission mechanism, and driving component to be housed inside the cover plate assembly, maintaining the cleanliness and aesthetics of the tabletop. Furthermore, the opening in the cover plate assembly exposes the operating end face, allowing the user to easily locate and operate the driving component, enabling rapid adjustment of the tabletop angle and improving user experience and ease of use.

[0027] Furthermore, there are two linkage mechanisms and two transmission mechanisms. The two linkage mechanisms are spaced apart along the length of the table, and the two transmission mechanisms are arranged in a one-to-one correspondence with the two linkage mechanisms. During the downward movement of the driving component along the height of the table, the two transmission mechanisms drive the corresponding internal transmission components to move to the separation state.

[0028] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: By providing transmission mechanisms and linkage mechanisms at both ends of the driving component, and with the two linkage mechanisms respectively connected to both ends of the target object, the connection between the tabletop assembly and the target object is made more stable, and the support of the target object on the tabletop assembly is also made more stable. The design of the double linkage mechanism and the double transmission mechanism ensures that the force distribution is more uniform when the tabletop angle is adjusted, avoiding the unbalanced torque that may be caused by single-sided driving, and improving the smoothness and comfort of the tabletop adjustment process. By providing linkage mechanisms and transmission mechanisms at both ends of the tabletop, not only is the overall mechanical performance of the tabletop enhanced, but the strength and durability of the transmission mechanism and linkage mechanism are also improved, extending the service life of the tabletop. The two independent transmission mechanisms can control the axial movement of the corresponding internal transmission components respectively, making the adjustment of the tabletop angle more precise, and allowing users to adjust the tabletop to the required angle more delicately.

[0029] According to another aspect of the present invention, a seat assembly is provided, which includes at least a seat and a table assembly, the table assembly being the aforementioned table assembly, and the target object being the seat back of the seat.

[0030] The above-described optional embodiments of this application achieve the following beneficial effects: by connecting the table assembly to the seat back, the table angle can be adjusted to adapt to different usage needs, thereby improving the comfort and functionality of the seat assembly. Users can adjust the table angle as needed, enhancing the user experience. In this embodiment, the seat assembly is applicable to seats in vehicles such as cars, airplanes, and trucks, as well as in meeting rooms, offices, and other occasions where the table angle needs to be adjusted.

[0031] According to another aspect of the present invention, a vehicle is also provided, the vehicle including a seat assembly, the seat assembly being the aforementioned seat assembly.

[0032] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: by integrating the table assembly into the vehicle, the table angle adjustment function of the vehicle seat is realized to meet the user's usage needs during driving, thereby improving the comfort and functionality of the vehicle seat. Users can adjust the table angle as needed, thus improving the user experience. Attached Figure Description

[0033] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0034] Figure 1 A schematic diagram of the structure of a first embodiment of the table assembly according to the present invention is shown;

[0035] Figure 2 A schematic diagram of a second embodiment of the tabletop assembly according to the present invention is shown;

[0036] Figure 3 A structural schematic diagram of a third embodiment of the table assembly according to the present invention is shown;

[0037] Figure 4 A structural schematic diagram of a fourth embodiment of the table assembly according to the present invention is shown;

[0038] Figure 5 A schematic diagram of the structure of a first embodiment of the drive according to the present invention is shown;

[0039] Figure 6 A structural schematic diagram of a fifth embodiment of the table assembly according to the present invention is shown;

[0040] Figure 7 A schematic diagram of an embodiment of the internal transmission component according to the present invention is shown;

[0041] Figure 8 A schematic diagram of an embodiment of the external transmission component according to the present invention is shown;

[0042] Figure 9 A structural schematic diagram of a sixth embodiment of the tabletop assembly according to the present invention is shown;

[0043] Figure 10 A schematic diagram of the structure of a second embodiment of the drive according to the present invention is shown;

[0044] Figure 11A schematic diagram of an embodiment of the first transmission rod according to the present invention is shown;

[0045] Figure 12 A schematic diagram of an embodiment of the second transmission rod according to the present invention is shown;

[0046] Figure 13 A structural schematic diagram of a seventh embodiment of the table assembly according to the present invention is shown;

[0047] Figure 14 A structural schematic diagram of an eighth embodiment of the tabletop assembly according to the present invention is shown.

[0048] The above figures include the following reference numerals:

[0049] 100. Tabletop; 101. Top cover; 102. Bottom cover; 103. Trim strip;

[0050] 110. Tabletop frame; 111. First support plate; 1110. First support hole; 112. Fixing baffle; 1120. Fixing hole; 1121. Limiting groove; 113. Limiting block;

[0051] 200. Transmission mechanism;

[0052] 210. Transmission rod; 2101. Fitting space; 2102. Slot; 2103. Stop protrusion;

[0053] 211. First transmission rod; 212. Second transmission rod;

[0054] 221. Reset elastic element;

[0055] 231. Internal transmission component; 2311. Stop and engagement structure; 2312. Limiting protrusion; 2313. Positioning groove; 2314. First meshing tooth;

[0056] 241. External transmission component; 2411. Positioning protrusion; 2412. Second meshing tooth;

[0057] 300, Linkage mechanism; 301, Mounting base; 311, First link; 321, Second link; 331, Rivet; 341, Bolt; 400, Driving component; 401, Mating section; 402, Positioning section; 403, Driving section; 410, Operating end face. Detailed Implementation

[0058] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0059] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0060] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0061] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0062] Combination Figures 1 to 14 As shown, according to a specific embodiment of this application, a tabletop assembly is provided.

[0063] Specifically, such as Figures 1 to 4As shown, the tabletop assembly includes a tabletop 100, a transmission mechanism 200, and a linkage mechanism 300. The transmission mechanism 200 includes at least an inner transmission member 231 and an outer transmission member 241, wherein the outer transmission member 241 is rotatably connected to the tabletop 100, and the inner transmission member 231 is movably connected to the tabletop 100, so that the inner transmission member 231 and the outer transmission member 241 have a connected state and a separated state. The linkage mechanism 300 includes a first link 311 and a second link 321, wherein the first end of the first link 311 and the second link 321 are connected. The first end of each link is used to be movably connected to the target object. The second end of the first link 311 is connected to the external transmission member 241, and the second end of the second link 321 is connected to the table 100. The table 100 has an unlocked state in which it can rotate freely relative to the external transmission member 241, and a locked state in which it is fixed relative to the external transmission member 241. When the internal transmission member 231 is separated from the external transmission member 241, the table 100 is in the unlocked state. When the internal transmission member 231 is connected to the external transmission member 241, the table 100 is in the locked state.

[0064] Applying the technical solution of this embodiment, the transmission mechanism 200 is connected to the tabletop 100 through the inner transmission member 231 and the outer transmission member 241, and is also connected to the first link 311 in the linkage mechanism 300 through the outer transmission member 241. By manipulating the transmission mechanism 200, the inner transmission member 231 and the outer transmission member 241 can be switched between a connected state and a separated state. When the inner transmission member 231 and the outer transmission member 241 are in a separated state, the movement of the tabletop 100 can be adjusted (such as manually lifting or pressing the tabletop 100) to make the inner transmission member 231 and the outer transmission member 241 rotate. At the same time, the outer transmission member 241 is also connected to the target object through the first link 311, and the tabletop 100 is connected to the target object through the second link 321. Thus, while adjusting the movement of the tabletop 100, relative movement between the tabletop 100 and the target object can be realized (i.e., the angle of the tabletop 100 relative to the target object can be movable), thereby realizing the adjustment of the opening angle of the tabletop 100 relative to the target object. When the inner transmission component 231 and the outer transmission component 241 are connected by manipulating the transmission mechanism 200, the inner transmission component 231 and the outer transmission component 241 form a single unit for transmission, and the tabletop 100 is in a locked state. That is, the tabletop 100 is relatively stationary with respect to the inner transmission component 231 and the outer transmission component 241. At the same time, the transmission mechanism 200, the tabletop 100, and the linkage mechanism 300 are also relatively stationary, thus fixing the position of the tabletop 100 relative to the target object. By connecting and separating the inner transmission component 231 and the outer transmission component 241, the locking and unlocking states of the tabletop 100 are controlled. In the unlocked state, the tabletop 100 can rotate freely. After the tabletop 100 is adjusted to a suitable angle, the connection of the inner transmission component 231 and the outer transmission component 241 causes the tabletop 100 to enter the locked state. This allows for the adjustment of the tabletop 100's angle and ensures the stability of the tabletop 100 during use.

[0065] In this embodiment, the target object can be the back or side of an airplane seat, train seat, wheelchair, office chair, or cinema seat, or the side of a bed, sofa, or leisure furniture, to provide a better experience for the user.

[0066] Specifically, such as Figure 1 As shown, the tabletop assembly also includes a drive unit 400, which is connected to the transmission mechanism 200. The drive unit 400 is movably arranged along the height direction of the tabletop 100 so that the inner transmission unit 231 and the outer transmission unit 241 can switch between a connected state and a disconnected state.

[0067] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: when the angle of the tabletop 100 needs to be adjusted, the up and down movement of the driving component 400 causes the internal structure of the transmission mechanism 200 to change and generate driving force, which drives the separation and connection of the inner transmission component 231 and the outer transmission component 241 of the transmission mechanism 200, thereby unlocking and locking the tabletop 100. The angle of the tabletop can be easily adjusted by operating the driving component 400, which improves the convenience and efficiency of operation.

[0068] It should be noted that, since the user needs to face the surface of the tabletop 100 in most cases during the use of the tabletop assembly, the driver 400 is movably positioned along the height direction of the tabletop 100 surface, allowing the user to directly adjust the opening angle of the tabletop 100. Furthermore, by positioning the driver 400 along the height direction of the tabletop 100, space is saved, the operation process is simplified, design costs are lower, and reliability is higher.

[0069] It should be understood that in this embodiment, the main working principle is that the vertical movement of the driving component 400 drives the horizontal movement of the inner transmission component 231, thereby adjusting the engagement state between the inner transmission component 231 and the outer transmission component 241. The driving component 400 and the inner transmission component 231 can employ various driving transmission methods, as long as they can convert vertical movement into horizontal movement.

[0070] In one exemplary embodiment of this application, the driving member 400 can be driven by the inner transmission member 231 via a linkage mechanism, so that when the driving member 400 moves downward, the inner transmission member 231 moves in a direction away from the outer transmission member 241. Alternatively, the driving member 400 can be driven by the inner transmission member 231 via a flexible belt or cable, so that when the driving member 400 moves downward, the tension or slack of the flexible belt or cable controls the horizontal movement of the inner transmission member 231. Alternatively, the driving member 400 and the inner transmission member 231 can be driven by an electromagnetic mechanism, whereby when the driving member 400 moves downward, the electromagnet is energized to generate magnetic force, attracting or releasing the magnetic components connected to the inner transmission member 231, thereby achieving the horizontal movement of the inner transmission member 231. Depending on actual needs, the driving member 400 and the inner transmission member 231 can also be driven by a inclined plane and a ball bearing mechanism, a cam mechanism, or other transmission mechanisms.

[0071] Furthermore, such as Figure 3 , Figure 4As shown, the transmission mechanism 200 also includes a transmission rod 210, which has a first end and a second end that are arranged opposite to each other along the axial direction of the transmission rod 210. The first end of the transmission rod 210 is connected to the end of the inner transmission member 231 that is away from the outer transmission member 241, and the second end of the transmission rod 210 is configured to cooperate with the driving member 400. When the driving member 400 moves downward along the height direction of the table 100, it can drive the transmission rod 210 to move in the direction away from the outer transmission member 241, thereby driving the inner transmission member 231 to move to the separation state.

[0072] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: by using the movement of the transmission rod 210, the movement of the driving member 400 is converted into the movement of the inner transmission member 231, realizing the separation of the inner transmission member 231 and the outer transmission member 241, making the movement of the driving member 400 more direct and efficient, and reducing the complexity of operation.

[0073] In this embodiment, when the tabletop angle needs to be adjusted, the drive member 400 is first operated to move along a height direction perpendicular to the tabletop 100. This movement is transmitted through the transmission rod 210, causing the transmission rod 210 to move away from the outer transmission member 241. When the transmission rod 210 moves inward, it also drives the inner transmission member 231 to move inward, thereby separating the inner transmission member 231 from the outer transmission member 241. At this time, the tabletop can rotate freely. After the tabletop 100 is adjusted to the desired angle, the drive member 400 is released. The drive member 400, transmission rod 210, and inner transmission member 231 automatically return to their initial engagement state, thus locking the tabletop 100 in its current position.

[0074] In this embodiment, the transmission rod 210 serves as the path for transmitting horizontal tension, which can effectively save the size of the transmission rod 210. Since the tabletops are of different sizes, transmission rods 210 of different lengths and sizes can be selected according to the tabletop size, ensuring that the movement process of the internal transmission component 231 requires less force and also avoiding the problem of different driving forces required for tabletops of different sizes.

[0075] It should be understood that the vertical movement of the driving component 400 drives the transmission rod 210 to move horizontally, that is, along the length of the transmission rod 210, thereby adjusting the engagement state between the inner transmission component 231 and the outer transmission component 241. The driving component 400 and the transmission rod 210 can employ various driving transmission methods, as long as they can convert vertical movement into horizontal movement.

[0076] Specifically, such as Figure 5 , Figure 10As shown, the second end of the transmission rod 210 is provided with a mating space 2101, and the driving member 400 has a mating section 401 that extends into the mating space 2101. The radial cross-sectional area of ​​the mating section 401 is gradually reduced along the direction close to the transmission rod 210. The outer peripheral surface of a portion of the mating section 401 contacts the side wall of the mating space 2101 away from the outer transmission member 241. As the mating section 401 moves downward along the height direction of the table 100, the transmission rod 210 moves in the direction away from the outer transmission member 241.

[0077] The above-described optional embodiments of this application achieve the following beneficial effects: the radial cross-sectional area of ​​the mating section 401 gradually decreases along the direction approaching the transmission rod 210. This wedge-shaped design allows the contact point between the mating section 401 and the transmission rod 210 to gradually move axially as the drive member 400 moves downwards along the height direction of the tabletop 100, thereby generating the effect of pushing the transmission rod 210 to move away from the external transmission member 241. The wedge-shaped fit between the mating section 401 and the mating space 2101 improves operational convenience and efficiency. The wedge-shaped contact between the transmission rod 210 and the drive member 400 through the mating section 401 and the mating space 2101 avoids direct axial force transmission, reduces wear and energy loss during operation, and improves the reliability and service life of the system.

[0078] It should be noted that in this embodiment, the "outer peripheral surface of the mating section 401 contacts the side wall of the mating space 2101 away from the outer transmission member 241" refers to the outer transmission member 241 that has a mating relationship with the inner transmission member 231 connected to the transmission rod 210. That is, the outer transmission member 241 and the inner transmission member 231 (i.e., the inner transmission member 231 connected to the transmission rod 210 forming the mating space 2101) should have a connected state and a separated state. Figure 3 As shown, each side of the mating section 401 is provided with a transmission rod 210, an external transmission component 241, and an internal transmission component 231. Therefore, regarding the transmission rod 210 on the left side (i.e.... Figure 3 The statement regarding the first transmission rod 211 shown, that "the outer peripheral surface of the mating section 401 contacts the side wall of the mating space 2101 away from the outer transmission member 241," should be understood as the outer peripheral surface of the mating section 401 contacting the side wall of the mating space 2101 of the left transmission rod 210 away from the left outer transmission member 241. This is in contrast to the statement regarding the right transmission rod 210 (i.e.,...). Figure 3The phrase "the outer peripheral surface of a portion of the mating section 401 contacts the side wall of the mating space 2101 away from the outer transmission member 241" in the second transmission rod 212 shown should be understood as the outer peripheral surface of a portion of the mating section 401 contacting the side wall of the mating space 2101 of the right-side transmission rod 210 away from the right-side outer transmission member 241. In an alternative embodiment of this application, the radial cross-sectional area of ​​the mating section 401 is gradually increased along the direction close to the transmission rod 210, the side wall of the mating space 2101 of the transmission rod 210 is set as an inclined surface matching the outer peripheral surface of the mating section 401, and the outer peripheral surface of a portion of the mating section 401 contacts the side wall of the mating space 2101 close to the outer transmission member 241. During the downward movement of the mating section 401 along the height direction of the tabletop 100, the transmission rod 210 moves in the direction away from the outer transmission member 241. The mating space 2101 is a through-hole structure.

[0079] Furthermore, such as Figures 2 to 4 , Figure 6 As shown, the tabletop 100 includes a tabletop frame 110 and a fixed baffle 112. A first support plate 111 protrudes from the tabletop frame 110 and has a first support hole 1110. The fixed baffle 112 protrudes from the tabletop frame 110 and is positioned opposite to the first support plate 111 along the direction of movement of the inner transmission member 231. The fixed baffle 112 has a fixed hole 1120. At least a portion of the outer transmission member 241 extends through the first support hole 1110 to a side away from the fixed baffle 112 and is connected to the first support plate 1110. The second end of the connecting rod 311 is connected to the outer transmission member 241, which is rotatably disposed relative to the first support hole 1110. At least part of the inner transmission member 231 extends through the fixing hole 1120 to the side away from the first support plate 111 and is connected to the first end of the transmission rod 210. The inner transmission member 231 and the fixing hole 1120 are fixedly disposed relative to each other in the circumferential direction of the fixing hole 1120. The inner transmission member 231 is movably disposed along the axial direction of the fixing hole 1120 so that the inner transmission member 231 and the outer transmission member 241 can switch between a connected state and a separated state.

[0080] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: A first support plate 111 is provided on the table frame 110 to support and fix the external transmission component 241, ensuring that the external transmission component 241 can rotate freely within a certain range without affecting the stability and structural strength of the entire table 100; the first support plate 111 is provided with a first support hole 1110, so that the external transmission component 241 passes through the first support hole 1110 and connects to the first connecting rod 311, and the setting that the external transmission component 241 can rotate within the first support hole 1110 makes the angle of the table 100 adjustable. The fixed baffle 112 protrudes from the table frame 110 and is positioned opposite the first support plate 111 along the axial direction of the inner transmission member 231. It can be used to limit the range of motion of the inner transmission member 231 and prevent excessive axial movement of the inner transmission member 231, which would cause instability in the overall table structure 100. The fixed baffle 112 has a fixed hole 1120, through which the inner transmission member 231 passes and connects to the transmission rod 210, so that the transmission rod 210 can control the axial movement of the inner transmission member 231. When the tabletop 100 does not need to be adjusted, the inner transmission component 231 and the outer transmission component 241 are connected, restricting the free rotation of the tabletop frame 110. When the angle of the tabletop 100 needs to be adjusted, the driving component 400 is operated, causing its mating section 401 to push the transmission rod 210 to move away from the outer transmission component 241, thereby causing the inner transmission component 231 to move along the axial direction of the fixing hole 1120, and finally reach the separation state from the outer transmission component 241, thus realizing the adjustment of the angle of the tabletop 100.

[0081] In this embodiment, the relative movement of the inner transmission component 231 and the outer transmission component 241 is achieved through the structure of the first support plate 111 and the fixed baffle 112 on the table frame 110, thereby controlling the locking and unlocking states of the table 100. The combination of the fixed baffle 112 and the inner transmission component 231 not only provides the necessary structural support for the table but also ensures that the table will not rotate accidentally during use, increasing safety and stability during use. The combination and separation of the inner transmission component 231 and the outer transmission component 241 are controlled by the drive component 400, simplifying the steps of adjusting the table angle. The connection relationship between the table frame 110, the first support plate 111, and the fixed baffle 112 makes full use of the limited space, making the entire table assembly as compact as possible while ensuring functionality.

[0082] In one exemplary embodiment of this application, a limit block 113 is also provided on the table frame 110, such as... Figure 2As shown, the limiting block 113 is disposed on the table frame 110. The limiting block 113 has a limiting cavity with an opening that is disposed opposite to the movement direction of the transmission rod 210, so that the transmission rod 210 extends into the limiting cavity through the opening. The top of the limiting block 113 is also provided with a limiting hole that communicates with the limiting cavity. The driving member 400 extends into the limiting cavity through the limiting hole. The setting of the limiting block 113 can ensure that the driving member 400 can only move along the axial direction of the limiting hole, that is, the height direction of the table 100, and prevent the driving member 400 from moving and shifting in other directions.

[0083] like Figure 2 , Figure 10 As shown, in an exemplary embodiment of this application, the driving member 400 includes a mating section 401, a positioning section 402 and a driving section 403. The mating section 401 is located in the limiting cavity, the driving section 403 is configured as a cylindrical structure and extends into the limiting hole, and the positioning section 402 is used to mate with the positioning hole or positioning groove (not shown in the figure) on the table frame 110.

[0084] Furthermore, such as Figure 3 , Figure 9 As shown, the transmission mechanism 200 also includes a reset elastic member 221. One end of the reset elastic member 221 is connected to the fixed baffle 112, and the other end of the reset elastic member 221 is connected to the fixed baffle 112. When the inner transmission member 231 and the outer transmission member 241 are in a connected state, the reset elastic member 221 is in a natural state. When the inner transmission member 231 moves away from the outer transmission member 241, the reset elastic member 221 is in a compressed state.

[0085] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: one end of the reset elastic member 221 is connected to the fixed baffle 112 on the table frame 110, and the other end is connected to the inner transmission member 231. When the inner transmission member 231 and the outer transmission member 241 are connected, the reset elastic member 221 is in a naturally extended state, maintaining the stability of the table 100 at a fixed angle. When the user needs to adjust the angle of the table 100, by operating the drive member 400, the inner transmission member 231 will move along the axial direction of the fixed hole 1120, gradually moving away from the outer transmission member 241. During this process, the reset elastic member 221 is compressed due to the movement of the inner transmission member 231, storing a certain amount of energy. Once the user completes the adjustment of the table angle and releases the drive member 400, the reset elastic member 221 will quickly return to its natural state under the action of its elastic force, thereby driving the inner transmission member 231 back to the original contact position with the outer transmission member 241, realizing the locking and reset of the table angle. Preferably, the reset elastic member 221 is a spring. By utilizing the elastic force of the reset elastic element 221, the inner transmission element 231 can automatically return to the connection state with the outer transmission element 241 after being unlocked, thereby realizing the automatic locking of the tabletop 100. This allows the tabletop 100 to be reset without any additional operation by the user after adjustment, and can automatically stabilize at the required angle, improving the convenience and safety of use.

[0086] Furthermore, such as Figure 7 , Figure 11 , Figure 12 As shown, the inner transmission member 231 has a stop engagement structure 2311 at one end near the transmission rod 210. The first end of the transmission rod 210 has a groove 2102, and the side wall of the groove 2102 has a stop protrusion 2103. When the first end of the transmission rod 210 is connected to the inner transmission member 231, the end of the inner transmission member 231 extends into the groove 2102, and the stop protrusion 2103 is engaged with the stop engagement structure 2311.

[0087] The above-described optional embodiments of this application achieve the following beneficial effects: the stop-fitting structure 2311 matches the stop protrusion 2103, ensuring that the movement of the inner transmission member 231 in a specific direction is restricted, preventing excessive movement. The slot 2102 is used to accommodate the end of the inner transmission member 231, forming a relatively movable connection point, ensuring power transmission when the transmission rod 210 moves in the axial direction, while maintaining stable contact with the inner transmission member 231. When the first end of the transmission rod 210 is connected to the inner transmission member 231, the end of the inner transmission member 231 will extend into the slot 2102 of the transmission rod 210. At this time, the stop protrusion 2103 will contact the stop-fitting structure 2311 on the inner transmission member 231, restricting the circumferential movement of the inner transmission member 231. In this way, when the drive component 400 is operated, causing the transmission rod 210 to move axially, the inner transmission component 231 will also be pushed by the stop protrusion 2103, thereby separating from the outer transmission component 241 and realizing the free adjustment of the tabletop 100 angle. This makes the adjustment of the tabletop 100 more stable and reliable, and avoids accidental unlocking due to external forces during use.

[0088] Specifically, such as Figure 6 , Figure 7 As shown, a limiting protrusion 2312 is also provided on the outer peripheral surface of the inner transmission component 231. The limiting protrusion 2312 extends along the axial direction of the inner transmission component 231. A limiting groove 1121 is provided on the inner wall of the fixing hole 1120. The limiting groove 1121 is matched with the limiting protrusion 2312.

[0089] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the limiting protrusion 2312 can match the limiting groove 1121 on the inner wall of the fixing hole 1120 to restrict the rotation of the inner transmission member 231 in the circumferential direction. At the same time, the limiting groove 1121 can also ensure the accurate insertion of the limiting protrusion 2312 when the inner transmission member 231 moves axially. When adjusting the angle of the tabletop 100, the downward movement of the drive component 400 is transmitted to the inner drive component 231 via the transmission rod 210, causing it to move axially. During this process, the limiting protrusion 2312 remains in contact with the limiting groove 1121 on the inner wall of the fixing hole 1120, preventing the inner drive component 231 from rotating circumferentially during movement and ensuring proper separation between the inner drive component 231 and the outer drive component 241. When the tabletop angle is adjusted, the reset elastic component 221 pushes the inner drive component 231 back to its original position, and the limiting protrusion 2312 re-embeds into the limiting groove 1121. At this time, the inner drive component 231 and the outer drive component 241 re-engage, locking the tabletop angle and preventing unexpected changes in the tabletop angle due to circumferential force. Through the cooperation of the limiting protrusion 2312 and the limiting groove 1121, circumferential rotation of the inner drive component 231 during axial movement is effectively prevented, ensuring the stability of the tabletop angle adjustment.

[0090] Furthermore, such as Figures 6 to 9 As shown, the inner transmission member 231 has a positioning groove 2313 at one end facing the outer transmission member 241, and the outer transmission member 241 has a positioning protrusion 2411 at one end facing the inner transmission member 231. When the inner transmission member 231 and the outer transmission member 241 are in a connected state, the positioning protrusion 2411 extends into the positioning groove 2313.

[0091] The above-described optional embodiments of this application achieve the following beneficial effects: The cooperation between the positioning groove 2313 and the positioning protrusion 2411 ensures a stable connection between the inner transmission component 231 and the outer transmission component 241 in the connected state, thereby locking the tabletop 100 and ensuring that the tabletop 100 can be stably maintained at the required angle after adjustment, improving convenience and safety. When the inner transmission component 231 and the outer transmission component 241 are in the connected state, the positioning protrusion 2411 will embed into the positioning groove 2313 of the inner transmission component 231, forming a stable connection structure, preventing unnecessary angular displacement of the tabletop 100 due to external forces during use, and ensuring the reliability and safety of the tabletop at a fixed angle. When the tabletop needs angle adjustment, the drive component 400 pushes the transmission rod 210, the inner transmission component 231 moves in the axial direction, and the positioning protrusion 2411 disengages from the positioning groove 2313. At this time, the outer transmission component 241 can rotate freely relative to the inner transmission component 231, and the user can adjust the tabletop to the required angle. After the adjustment is completed, the reset elastic component 221 pushes the inner transmission component 231 back to the initial position, and the positioning protrusion 2411 re-enters the positioning groove 2313.

[0092] Furthermore, such as Figure 7 , Figure 8 As shown, the end face of the inner transmission member 231 facing the outer transmission member 241 is provided with a first meshing tooth 2314, and the end face of the outer transmission member 241 facing the inner transmission member 231 is provided with a second meshing tooth 2412. When the inner transmission member 231 and the outer transmission member 241 are in a connected state, the first meshing tooth 2314 and the second meshing tooth 2412 are meshed with each other.

[0093] The above-described optional embodiments of this application can achieve the following beneficial effects: In the tabletop angle locked state, the first meshing tooth 2314 of the inner transmission member 231 and the second meshing tooth 2412 of the outer transmission member 241 are fully engaged. When the tabletop angle needs to be adjusted, the transmission rod 210 is operated by the drive member 400 to move axially, thereby pushing the inner transmission member 231 to move axially. The first meshing tooth 2314 and the second meshing tooth 2412 gradually separate, allowing the outer transmission member 241 to rotate freely. At this time, the tabletop can be manually adjusted to the required angle. Through the meshing connection of the first meshing tooth 2314 and the second meshing tooth 2412, the inner transmission member 231 can accurately transmit the axial force generated by the drive member 400 during operation to the outer transmission member 241, achieving stable control of the tabletop angle. At the same time, the tooth meshing design of the inner and outer transmission members ensures accurate locking of the tabletop at different tilt angles, avoiding the impact on user experience and comfort due to inaccurate angle adjustment. In addition, the toothed meshing structure can withstand greater torque, and can maintain the stability of the tabletop angle even when heavy objects are placed on the tabletop, thus improving the overall strength and durability of the tabletop adjustment system.

[0094] Furthermore, such as Figures 1 to 5 , Figure 10 As shown, the drive member 400 also includes an operating end face 410. Pressing down the drive member 400 along the operating end face 410 can drive the drive member 400 to move downward along the height direction of the tabletop 100. The tabletop 100 also includes a cover plate assembly. The cover plate assembly has a receiving cavity. The tabletop frame 110 and the transmission mechanism 200 are disposed in the receiving cavity. The cover plate assembly also has an opening communicating with the receiving cavity. At least a portion of the drive member 400 is located in the opening, or at least a portion of the drive member 400 extends out of the receiving cavity through the opening, so that the operating end face 410 is exposed outside the receiving cavity.

[0095] The above-described optional embodiments of this application can achieve the following beneficial effects: The operating end face 410 is disposed on the cover plate assembly or exposed outside the receiving cavity. The driving member 400 can be operated by operating the operating end face 410. Specifically, applying downward pressure to the operating end face 410 causes the driving member 400 to move downwards along the height direction of the tabletop 100. This, in turn, drives the inner transmission member 231 to move axially via the transmission mechanism 200, thereby separating the first meshing tooth 2314 from the second meshing tooth 2412. The arrangement of the cover plate assembly and the receiving cavity allows the tabletop frame 110, transmission mechanism 200, and driving member 400 to be disposed inside the cover plate assembly, maintaining the neatness and aesthetics of the tabletop 100. Furthermore, the opening in the cover plate assembly exposes the operating end face 410, allowing the user to easily locate and operate the driving member 400, enabling rapid adjustment of the tabletop angle and improving the user experience and usability of the tabletop 100.

[0096] In conjunction with the foregoing embodiments, the driving member 400 includes a mating section 401, a positioning section 402, and a driving section 403. The end face of the driving section 403 forms an operating end face 410. During the downward adjustment process of the driving member 400, the positioning section 402 first extends into the mating space 2101 to ensure that the driving member 400 moves within the mating space 2101. By operating the operating end face 410, the driving section 403 can drive the positioning section 402 and the mating section 401 to move within the mating space 2101, thereby enabling the drive transmission rod 210 to move with the driving member 400.

[0097] Furthermore, such as Figures 2 to 5 As shown, there are two linkage mechanisms 300 and two transmission mechanisms 200. The two linkage mechanisms 300 are arranged at intervals along the length direction of the table 100. The two transmission mechanisms 200 are arranged in a one-to-one correspondence with the two linkage mechanisms 300. During the downward movement of the driving member 400 along the height direction of the table 100, the two transmission mechanisms 200 drive the corresponding internal transmission members 231 to move to the separation state.

[0098] By setting transmission mechanisms 200 and linkage mechanisms 300 at both ends of the driving component 400, and with the two linkage mechanisms 300 respectively connecting to both ends of the target object, the connection between the tabletop assembly and the target object is made more stable, and the support of the target object on the tabletop assembly is also made more stable. The design of the double linkage mechanism 300 and the double transmission mechanism 200 ensures that the force distribution is more uniform when the tabletop angle is adjusted, avoiding the unbalanced torque that may be caused by single-sided driving, and improving the smoothness and comfort of the tabletop 100 adjustment process. By setting linkage mechanisms and transmission mechanisms at both ends of the tabletop 100, not only is the overall mechanical performance of the tabletop 100 enhanced, but the strength and durability of the transmission mechanism 200 and linkage mechanism 300 are also improved, extending the service life of the tabletop 100. The two independent transmission mechanisms 200 can control the axial movement of the corresponding internal transmission component 231 respectively, making the tabletop angle adjustment more precise, and allowing users to adjust the tabletop to the desired angle more delicately.

[0099] According to another specific embodiment of this application, a seat assembly is provided, which includes at least a seat and a table assembly, wherein the table assembly is the table assembly in the above embodiment, and the target object is the seat back of the seat.

[0100] The above-described optional embodiments of this application achieve the following beneficial effects: by connecting the table assembly to the seat back, the table angle can be adjusted to adapt to different usage needs, thereby improving the comfort and functionality of the seat assembly. Users can adjust the table angle as needed, enhancing the user experience. In this embodiment, the seat assembly is applicable to seats in vehicles such as cars, airplanes, and trucks, as well as in meeting rooms, offices, and other occasions where the table angle needs to be adjusted.

[0101] According to another specific embodiment of this application, a vehicle is also provided, the vehicle including a seat assembly, the seat assembly being the seat assembly in the above embodiment.

[0102] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: by integrating the table assembly into the vehicle, the table angle adjustment function of the vehicle seat is realized to meet the user's usage needs during driving, thereby improving the comfort and functionality of the vehicle seat. Users can adjust the table angle as needed, thus improving the user experience.

[0103] This application also provides a preferred embodiment of a tabletop assembly, in which the inner transmission component 231 and the outer transmission component 241 are separated by the drive component 400 and the transmission mechanism 200. By rotating the tabletop 100, the linkage mechanism 300 and the outer transmission component 241 are rotated, thereby realizing the relative rotation of the angle of the inner transmission component 231, and thus realizing the adjustment of the opening angle of the tabletop 100.

[0104] Specifically, the table assembly includes a table 100, an upper cover plate 101, a lower cover plate 102, a trim strip 103, a table frame 110, a fixed baffle 112, a transmission mechanism 200, and a linkage mechanism 300. The transmission mechanism 200 includes a transmission rod 210, a first transmission rod 211, a second transmission rod 212, a reset elastic element 221, an inner transmission element 231, and an outer transmission element 241. The linkage mechanism 300 includes a mounting base 301 installed on the seat back, a first connecting rod 311, a second connecting rod 321, a rivet 331, and a bolt 341.

[0105] The table assembly is mounted on the seat back via mounting bracket 301 and is linked with the seat back. One end of the first connecting rod 311 is connected to the mounting bracket 301 via rivet 331 and maintains rotational freedom, while the other end is fixedly connected to the external transmission component 241 of the transmission mechanism 200. One end of the second connecting rod 321 is connected to the mounting bracket 301 via rivet 331 and maintains rotational freedom, while the other end is connected to the table 100 via bolt 341. The fixed baffle 112 is fixedly connected to the table frame 110.

[0106] The drive component 400 matches the table frame 110, maintaining freedom of movement in the height direction. The middle part of the drive component 400 is a wedge-shaped part, which matches the mating space 2101 of the transmission rod 210. The other ends of the first transmission rod 211 and the second transmission rod 212 are connected to the inner transmission component 231. The inner transmission component 231 and the outer transmission component 241 are meshed by the first meshing tooth 2314 and the second meshing tooth 2412, respectively.

[0107] When the tabletop 100 is in use, such as Figure 13 , Figure 14As shown, the angle is affected by the seat back angle. When the drive component 400 is pressed, the first transmission rod 211 and the second transmission rod 212 move inward. At the same time, the other end of the first transmission rod 211 and the second transmission rod 212 drives the inner transmission component 231 to move inward, realizing the separation of the inner transmission component 231 and the outer transmission component 241. At this time, the table board 100 is manually raised. Since the first connecting rod 311 is connected to the outer transmission component 241, the outer transmission component 241 rotates relative to the inner transmission component 231. Then, the drive component 400 is released. Under the restoring force of the reset elastic component 221, the inner transmission component 231 moves outward, driving the first transmission rod 211 and the second transmission rod 212 to move outward back to their original positions, so that the inner transmission component 231 and the outer transmission component 241 are engaged by the first meshing tooth 2314 and the second meshing tooth 2412, respectively. When the tabletop 100 is subjected to force, the rotation of the inner transmission component 231 is restricted by the limiting protrusion 2312 and the limiting groove 1121, causing the outer transmission component 241 and the first connecting rod 311 to rotate at the same angle, thereby realizing the adjustment of the tabletop angle.

[0108] Based on the above description, it can be seen that this embodiment has the following beneficial effects:

[0109] 1) The problem of non-adjustable table angle or high cost and limited adjustment range of adjustment mechanism can be solved by using a low-cost transmission mechanism and linkage mechanism.

[0110] 2) The angle adjustment of the tabletop 100 is convenient and simple. The angle of the tabletop 100 can be adjusted by simply operating the drive component 400.

[0111] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0112] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0113] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0114] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tabletop assembly, characterized in that, include: Tabletop (100); A transmission mechanism (200) includes at least an inner transmission member (231) and an outer transmission member (241), wherein the outer transmission member (241) is rotatably connected to the tabletop (100), and the inner transmission member (231) is movably connected to the tabletop (100), so that the inner transmission member (231) and the outer transmission member (241) have a connected state and a separated state. A linkage mechanism (300) includes a first link (311) and a second link (321). The first end of the first link (311) and the first end of the second link (321) are both used to be movably connected to the target object. The second end of the first link (311) is connected to the external transmission member (241), and the second end of the second link (321) is connected to the table (100). The table (100) has an unlocked state in which it can rotate freely relative to the external transmission member (241), and a locked state in which it is fixed relative to the external transmission member (241). When the inner transmission component (231) and the outer transmission component (241) are in the separated state, the tabletop (100) is in the unlocked state; when the inner transmission component (231) and the outer transmission component (241) are in the connected state, the tabletop (100) is in the locked state.

2. The tabletop assembly according to claim 1, characterized in that, The table assembly also includes: A drive member (400) is connected to the transmission mechanism (200). The drive member (400) is movably arranged along the height direction of the tabletop (100) so that the inner transmission member (231) and the outer transmission member (241) can switch between the connected state and the disconnected state.

3. The tabletop assembly according to claim 2, characterized in that, The transmission mechanism (200) further includes: A transmission rod (210) has a first end and a second end that are disposed opposite to each other along the axial direction of the transmission rod (210), wherein the first end of the transmission rod (210) is connected to the end of the inner transmission member (231) that is away from the outer transmission member (241), and the second end of the transmission rod (210) is configured to cooperate with the drive member (400); When the driving member (400) moves downward along the height direction of the tabletop (100), it can drive the transmission rod (210) to move away from the outer transmission member (241), thereby driving the inner transmission member (231) to move to the separated state.

4. The tabletop assembly according to claim 3, characterized in that, The second end of the transmission rod (210) is provided with a mating space (2101). The driving member (400) has a mating section (401) that extends into the mating space (2101). The radial cross-sectional area of ​​the mating section (401) is gradually reduced in the direction close to the transmission rod (210). The outer peripheral surface of a portion of the mating section (401) contacts the side wall of the mating space (2101) away from the outer transmission member (241). As the mating section (401) moves downward along the height direction of the table (100), the transmission rod (210) moves in the direction away from the outer transmission member (241).

5. The tabletop assembly according to claim 3 or 4, characterized in that, The tabletop (100) includes: A table frame (110) is provided with a first support plate (111) protruding from the table frame (110), and the first support plate (111) has a first support hole (1110); A fixed baffle (112) is provided, which protrudes from the table frame (110). The fixed baffle (112) and the first support plate (111) are arranged opposite to each other along the movement direction of the internal transmission member (231). A fixing hole (1120) is provided on the fixed baffle (112). At least a portion of the outer transmission member (241) extends through the first support hole (1110) to a side away from the fixed baffle (112) and is connected to the second end of the first connecting rod (311). The outer transmission member (241) is rotatably disposed relative to the first support hole (1110). At least a portion of the inner transmission member (231) extends through the fixed hole (1120) to a side away from the first support plate (111) and is connected to the first end of the transmission rod (210). The inner transmission member (231) and the fixed hole (1120) are fixedly disposed relative to each other in the circumferential direction of the fixed hole (1120). The inner transmission member (231) is movably disposed along the axial direction of the fixed hole (1120) so that the inner transmission member (231) and the outer transmission member (241) can switch between the connected state and the separated state.

6. The tabletop assembly according to claim 5, characterized in that, The transmission mechanism (200) further includes: A reset elastic element (221) is provided, one end of which is connected to the fixed baffle (112), and the other end of which is connected to the internal transmission element (231). When the inner transmission member (231) and the outer transmission member (241) are in the connected state, the reset elastic member (221) is in the natural state. When the inner transmission member (231) moves away from the outer transmission member (241), the reset elastic member (221) is in the compressed state.

7. The tabletop assembly according to claim 5, characterized in that, The inner transmission member (231) is provided with a stop fitting structure (2311) at one end near the transmission rod (210). The first end of the transmission rod (210) is provided with a groove (2102). The side wall of the groove (2102) is provided with a stop protrusion (2103). When the first end of the transmission rod (210) is connected to the inner transmission member (231), the end of the inner transmission member (231) extends into the groove (2102). The stop protrusion (2103) is fitted with the stop fitting structure (2311).

8. The tabletop assembly according to claim 7, characterized in that, A limiting protrusion (2312) is also provided on the outer peripheral surface of the inner transmission component (231). The limiting protrusion (2312) extends along the axial direction of the inner transmission component (231). A limiting groove (1121) is provided on the inner wall of the fixing hole (1120). The limiting groove (1121) is matched with the limiting protrusion (2312).

9. The tabletop assembly according to claim 1, characterized in that, The inner transmission member (231) has a positioning groove (2313) at one end facing the outer transmission member (241), and the outer transmission member (241) has a positioning protrusion (2411) at one end facing the inner transmission member (231). When the inner transmission member (231) and the outer transmission member (241) are in the connected state, the positioning protrusion (2411) extends into the positioning groove (2313).

10. The tabletop assembly according to claim 1 or 9, characterized in that, The inner transmission member (231) has a first meshing tooth (2314) on its end face facing the outer transmission member (241), and the outer transmission member (241) has a second meshing tooth (2412) on its end face facing the inner transmission member (231). When the inner transmission member (231) and the outer transmission member (241) are in the connected state, the first meshing tooth (2314) and the second meshing tooth (2412) are meshed with each other.

11. The tabletop assembly according to claim 5, characterized in that, The driving member (400) further includes an operating end face (410). Pressing down on the driving member (400) along the operating end face (410) can cause the driving member (400) to move downward along the height direction of the tabletop (100). The tabletop (100) further includes: The cover assembly has a receiving cavity, the table frame (110) and the transmission mechanism (200) are disposed in the receiving cavity, the cover assembly also has an opening communicating with the receiving cavity, at least a portion of the driving member (400) is located in the opening, or at least a portion of the driving member (400) extends out of the receiving cavity through the opening so that the operating end face (410) is exposed outside the receiving cavity.

12. The tabletop assembly according to claim 3, characterized in that, There are two linkage mechanisms (300) and two transmission mechanisms (200). The two linkage mechanisms (300) are spaced apart along the length of the tabletop (100). The two transmission mechanisms (200) are arranged in a one-to-one correspondence with the two linkage mechanisms (300). During the downward movement of the driving member (400) along the height of the tabletop (100), the two transmission mechanisms (200) drive the corresponding internal transmission member (231) to move to the separated state.

13. A seat assembly, characterized in that, The seat assembly includes at least a seat and a table assembly, the table assembly being the table assembly according to any one of claims 1 to 12, and the target object being the seat back of the seat.

14. A vehicle, characterized in that, The vehicle includes a seat assembly, which is the seat assembly as claimed in claim 13.

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