Handrail with table board structure and vehicle

Abstract

The utility model belongs to the technical field of vehicle-mounted accessories, and provides a handrail with a table board structure and a vehicle, the handrail comprises a handrail body, a table board, a table board and a table board, the connecting rod assembly comprises a first end and a second end, and the first end is rotationally arranged in the containing cavity; the table board assembly comprises a main table board and an auxiliary table board, and the auxiliary table board is rotationally connected with the main table board and can be switched between a folding position and a maximum unfolding position on the main table board; and the transmission assembly is arranged between the main table plate and the second end. Compared with the prior art, the folding and unfolding type armrest has the advantages that the auxiliary table board of the table board assembly is driven by the transmission assembly to be folded and unfolded relative to the main table board, and on the premise that the effective supporting area of a table top of the table board assembly is not reduced, the required storage space is smaller when the table board assembly is located at the storage position, so that the space occupied by the whole armrest is smaller.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle accessories, and particularly relates to an armrest with a table plate structure and a vehicle. BACKGROUND

[0002] With the acceleration of people's life rhythm and the increase of comfort demand, in various occasions such as office environment, vehicles (such as cars, airplanes, etc.), the demand for table plate structures capable of providing convenient use in limited space is increasing. The traditional table plate design often has problems such as large space occupation and inconvenient use, especially in compact spaces, such as vehicle rear seats or small workstations in offices, users want to maximize space saving while enjoying convenience.

[0003] Most of the existing armrest devices only have the function of supporting the arm, and lack integrated table plate solutions. In order to solve the above problems, the Chinese invention patent application (application publication number: CN119176070A) which is already in the public domain discloses a seat armrest with a small table plate and a car, the armrest includes an armrest body, a lifting assembly and a small table plate assembly; the lifting assembly is installed in the containing groove of the armrest body; one end of the small table plate assembly is provided with a first unlocking hook, the top of the lifting assembly is provided with a locking support plate matched with the first unlocking hook, a elastic return piece is arranged on the lifting assembly, one end of the elastic return piece is connected with the small table plate assembly; the bottom of the small table plate assembly has an avoiding slide, the locking support plate is located in the avoiding slide, the top of the containing groove is provided with a second unlocking hook, the small table plate assembly has a locking clamping strip matched with the second unlocking hook, the small table plate assembly has an unlocking port, the unlocking port is located at the end of the locking clamping strip, so that the second unlocking hook is separated from the small table plate assembly, and the armrest achieves the technical effect of convenient use of the small table plate for rear passengers.

[0004] However, the above-mentioned small table plate is of an integrated structure. In order to meet the actual needs of the passengers, the small table plate needs to have sufficient width, which leads to the fact that it cannot be effectively stored when not in use, thereby occupying more space. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of the prior art and provides an armrest with a table plate structure and a vehicle.

[0006] The utility model solves the above technical problem by adopting the following technical scheme: an armrest with a table plate structure is provided, which includes: an armrest body, which is internally provided with a containing cavity;

[0007] A connecting rod assembly is provided, which includes a first end and a second end, the first end is rotatably arranged in the containing cavity;

[0008] A table board assembly comprising a main table board and an auxiliary table board, the auxiliary table board being rotatably connected with the main table board and being switchable between a folded position on the main table board and a maximum unfolded position;

[0009] A transmission assembly arranged between the main table board and the second end for driving the auxiliary table board to switch between the folded position and the maximum unfolded position;

[0010] The table board assembly has a storage position inside the accommodating cavity and a use position outside the accommodating cavity;

[0011] When in the storage position, the auxiliary table board is in the folded position and is stored in the accommodating cavity together with the main table board;

[0012] When in the use position, the auxiliary table board is in the maximum unfolded position and is flush with the end surface of the main table board.

[0013] In the armrest with the table board structure as described above, the main table board is rotatably connected with the second end;

[0014] When the table board assembly is in the storage position, the length direction of the main table board is arranged in parallel with the length direction of the armrest body;

[0015] When the table board assembly is in the use position, the length direction of the main table board is arranged perpendicularly to the length direction of the armrest body.

[0016] In the armrest with the table board structure as described above, the transmission assembly comprises:

[0017] A fixed cover, the second end of the connecting rod assembly being rotatably arranged on the fixed cover;

[0018] A rack movably arranged in the fixed cover, the rack being provided with a first toothed portion and a second toothed portion, the second end of the connecting rod assembly being provided with a third toothed portion, the first toothed portion and the third toothed portion being in mesh with each other;

[0019] A first gear ring, the table board assembly comprising a rotating shaft, the first gear ring being fixed on the outer sidewall of the rotating shaft and being in mesh with the second toothed portion;

[0020] A gear set arranged between the fixed cover and the auxiliary table board for driving the auxiliary table board to switch between the folded position and the maximum unfolded position when the rotating shaft rotates.

[0021] In the armrest with the table board structure as described above, the gear set comprises:

[0022] A fourth protruding tooth is arranged on the outer circumferential wall of the fixed cover;

[0023] A plurality of second toothed rings are arranged on the main table board and are sequentially engaged;

[0024] A first rotating seat is arranged on the main table board, and a fifth protruding tooth is arranged on the first rotating seat, and the fifth protruding tooth is engaged with one of the second toothed rings;

[0025] A first connecting rod is arranged on the first rotating seat, a universal joint is arranged on the auxiliary table board, a ball head is arranged on the first connecting rod, and the ball head is rotatably connected to the universal joint.

[0026] The armrest with the table board structure further comprises a supporting member fixed on one of the second toothed rings;

[0027] When the auxiliary table board is switched from the folding position to the maximum unfolded position, the supporting member is rotated to abut against the auxiliary table board, thereby providing support for the auxiliary table board.

[0028] The armrest with the table board structure further comprises a limiting member arranged in the fixed cover, so as to fix the main table board when the table board assembly is in the folding position and the maximum unfolded position.

[0029] The limiting member comprises:

[0030] A sliding block is movably arranged in the movable channel, and one end of the sliding block is provided with a movable slot;

[0031] An elastic member is arranged in the movable channel, one end of the elastic member abuts against the sliding block, and the other end abuts against the inner wall of the movable channel;

[0032] A second connecting rod is rotatably arranged in the movable slot and rotatably arranged on the first toothed ring.

[0033] The armrest with the table board structure further comprises a pull rope, one end of the pull rope is fixed on the fixed cover, and the other end extends to one side of the main table board, so as to drive the table board assembly to move in and out of the accommodating cavity when the pull rope is subjected to a force.

[0034] The connecting rod assembly comprises:

[0035] A second rotating seat is arranged in the accommodating cavity;

[0036] A third connecting rod, one end of which is rotatably arranged on the second rotating seat, and the other end of which is rotatably arranged on the transmission assembly;

[0037] A fourth connecting rod, one end of which is rotatably arranged on the second rotating seat, and the other end of which is rotatably arranged on the transmission assembly; wherein,

[0038] The second rotating seat, the third connecting rod, the fourth connecting rod and the transmission assembly form a four-bar linkage mechanism.

[0039] The utility model discloses solve above-mentioned technical problem still propose a kind of vehicle, including above-mentioned one with the handrail of desk board structure.

[0040] Compared with prior art, the utility model has following beneficial effects:

[0041] (1) the auxiliary desk board of desk board assembly is folded and expanded relative to main desk board by transmission assembly, on the premise that the effective support area of desk board assembly desktop is not reduced, so that the storage space required when desk board assembly is in storage position is smaller, so that the space occupied by entire handrail is smaller.

[0042] (2) the design that main desk board is rotatably connected with second end, so that desk board assembly can be easily converted between storage position and use position, while maintaining the overall structure of desk board assembly rotation, without increasing the volume of handrail body, ensure that desk board assembly meets the use demand of passenger when in use position.

[0043] (3) the detailed composition of gear set further refines transmission mechanism, ensures that auxiliary desk board can be accurately switched between folding position and maximum expansion position when rotating shaft rotates, increases the reliability and stability of operation. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is the perspective view when desk board assembly in the handrail with desk board structure of the utility model is in storage position.

[0045] Figure 2 It is Figure 1 Partial sectional view in

[0046] Figure 3 It is the perspective view when desk board assembly in the handrail with desk board structure of the utility model is in use position.

[0047] Figure 4 It is Figure 3 Partial sectional view of

[0048] Figure 5 It is the partial sectional view when auxiliary desk board in desk board assembly is in folding position.

[0049] Figure 6 It isFigure 5 is a perspective view of the folding table board in the maximum unfolded position.

[0050] Figure 7 is Figure 3 is a partial sectional view of the partial structure.

[0051] Figure 8 is Figure 4 is a perspective view of the partial structure.

[0052] Figure 9 is Figure 5 is a partial sectional view of the partial structure.

[0053] In the figure, 100, handrail body; 110, containing cavity; 120, cover plate; 130, rotating block; 200, connecting rod assembly; 210, first end; 220, second end; 221, third protruding tooth part; 230, second rotating seat; 240, third connecting rod; 250, fourth connecting rod; 300, table board assembly; 310, main table board; 320, auxiliary table board; 321, universal joint; 330, rotating shaft; 400, transmission assembly; 410, fixed cover; 411, movable channel; 420, rack; 421, first protruding tooth part; 422, second protruding tooth part; 430, first gear ring; 440, gear set; 441, fourth protruding tooth part; 442, second gear ring; 443, first rotating seat; 443a, fifth protruding tooth part; 444, first connecting rod; 444a, ball head; 450, limiting piece; 451, sliding block; 451a, movable groove; 452, elastic piece; 453, second connecting rod; 500, supporting piece; 600, pull rope. DETAILED DESCRIPTION

[0054] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0056] Referring to Figures 1 to Figure 9 , in this scheme, the specific structure of the handrail and the use in the vehicle are mainly described, and the above-mentioned vehicle can be a car, a truck, a train, a passenger car, etc.

[0057] A handrail with a table board structure, comprising: a handrail body 100, a connecting rod assembly 200, a table board assembly 300, and a transmission assembly 400.

[0058] Specifically, the armrest body 100 has a rectangular parallelepiped structure and an internal cavity 110. This cavity 110 is designed to store the linkage assembly 200, the table assembly 300, and the transmission assembly 400 when the driver or passenger is not using the table structure. The armrest body 100 is equipped with a cover plate 120, which is rotatably connected to the armrest body 100 via a pin. The cover plate 120 is used to open and close the cavity 110, providing support for the driver's and passenger's hands and elbows when the table assembly 300 is in the stored or used position.

[0059] In one embodiment, a rotating block 130 is also provided on one side of the armrest body 100. The rotating block 130 is rotatably connected to the armrest body 100 and equipped with a torsion spring. The rotating block 130 is designed to seal the end sidewall of the receiving cavity 110 when the table assembly 300 is in the retracted position, making the armrest body 100 a complete structure, ensuring the overall aesthetic appearance of the armrest body 100, and providing a limit for the connecting rod assembly 200 when the connecting rod assembly 200 and the table assembly 300 are switched to the outside of the armrest body 100; the torsion spring drives the rotating block 130 to reset after the table assembly 300 switches to the retracted position.

[0060] The linkage assembly 200 is a key component that drives the tabletop assembly 300 to switch between the storage position and the use position. It has a first end 210 and a second end 220, with the first end 210 rotatably disposed in the receiving cavity 110.

[0061] The tabletop assembly 300 has a storage position within the receiving cavity 110 and a use position outside the receiving cavity 110. It includes a main tabletop 310 and an auxiliary tabletop 320, which are rotatably connected to the main tabletop 310. There can be one or two auxiliary tabletops 320. When there are two auxiliary tabletops 320, they are located on opposite sides of the main tabletop 310 and are rotatably connected to the main tabletop 310 via pins. They can switch between a folded position and a fully extended position on the main tabletop 310. A transmission assembly 400 is disposed between the main tabletop 310 and the second end 220 of the connecting rod assembly 200 to drive the auxiliary tabletop 320 to switch between the folded position and the fully extended position. Furthermore, when the tabletop assembly 300 is in the storage position, the auxiliary tabletop 320 is in the folded position and is stored together with the main tabletop 310 in the receiving cavity 110; when the tabletop assembly 300 is in the use position, the auxiliary tabletop 320 is in the maximum unfolded position and is flush with the end face of the main tabletop 310.

[0062] In this design, the linkage assembly 200 enables the tabletop assembly 300 to switch between a storage position and a use position relative to the receiving cavity 110 of the armrest body 100, thus facilitating both storage and use of the tabletop assembly 300. Furthermore, the transmission assembly 400 drives the auxiliary tabletop 320 of the tabletop assembly 300 to fold and extend relative to the main tabletop 310. Without reducing the effective support area of ​​the tabletop assembly 300, this design minimizes the storage space required when the tabletop assembly 300 is in the storage position, thereby reducing the overall space occupied by the armrest.

[0063] In one embodiment, when the auxiliary tabletop 320 of the tabletop assembly 300 is switched to its maximum unfolded position, the entire tabletop assembly 300 is unfolded for use. To ensure that the tabletop assembly 300 can be stored within the receiving cavity 110 after the auxiliary tabletop 320 is folded, without increasing the volume of the armrest body 100, and to ensure that the tabletop assembly 300 meets the passenger's usage needs in its use position, when the tabletop assembly 300 is located within the receiving cavity 110, the length direction of the tabletop assembly 300 is aligned with the length direction of the armrest body 100 (e.g., ...). Figure 3 The tabletop assembly 300 is arranged parallel to the left and right sides (as shown); however, when the tabletop assembly 300 is switched to the usage position, the length direction of the tabletop assembly 300 needs to be adjusted to be perpendicular to the length direction of the armrest body 100, in order to achieve... Figure 3 The state shown indicates that during the process of switching the tabletop assembly 300 from the folded position to the usage position, not only must the auxiliary tabletop 320 switch between the folded position and the fully extended position, but the entire tabletop assembly 300 must also rotate. Therefore, this design rotatably connects the main tabletop 310 to the second end 220 of the connecting rod assembly 200. With this rotatable connection, when the tabletop assembly 300 is in the folded position, the length direction of the main tabletop 310 is parallel to the length direction of the armrest body 100; when the tabletop assembly 300 is in the usage position, the length direction of the main tabletop 310 is perpendicular to the length direction of the armrest body 100.

[0064] In this solution, the transmission assembly 400 includes: a fixed cover 410, a rack 420, a first gear ring 430, and a gear set 440.

[0065] The fixed cover 410 can be a single piece of structure, or it can be like... Figure 4As shown, an outer cover with an internal fixing seat is used. The second end 220 of the linkage assembly 200 is rotatably mounted on the fixing cover 410; the rack 420 is movably mounted inside the fixing cover 410, providing support for the rack 420 and guiding its movement. The rack 420 is provided with a first tooth 421 and a second tooth 422, and the second end 220 of the linkage assembly 200 is provided with a third tooth 221. The first tooth 421 and the third tooth 221 mesh with each other; the table assembly 300 includes a rotating shaft 330, and a first gear ring 430 is fixed to the outer wall of the rotating shaft 330 and meshes with the second tooth 422; the gear set 440 is disposed between the fixing cover 410 and the auxiliary table 320, and is used to drive the auxiliary table 320 to switch between the folded position and the maximum unfolded position when the rotating shaft 330 rotates.

[0066] Reference Figure 1 , Figure 2 , Figure 5 and Figure 9 At this time, the tabletop assembly 300 is located within the receiving cavity 110. When the connecting rod assembly 200 rotates relative to the armrest body 100, it drives the tabletop assembly 300 to switch from the storage position to the use position. During this process, the second end 220 of the connecting rod assembly 200 rotates relative to the fixing cover 410. Due to the interaction between the third protruding tooth 221 on the second end 220 and the first protruding tooth 421 on the rack 420, the rack 420 moves relative to the fixing cover 410. The rack 420 is provided with a second protruding tooth 422, which meshes with the first gear ring 430. Therefore, when the rack 420 moves, it pushes the first gear ring 430 to rotate through the meshing between the second protruding tooth 422 and the first gear ring 430, thereby driving the rotating shaft 330 to rotate. When the rotating shaft 330 rotates, it drives the entire tabletop assembly 300 to rotate.

[0067] Simultaneously, due to the gear set 440 between the fixed cover 410 and the auxiliary table 320, as the table assembly 300 rotates, the auxiliary table 320 rotates relative to the main table 310, switching from a folded state to a fully extended state. Ultimately, the table assembly 300 changes from a state where its length direction is parallel to the length direction of the armrest body 100 to a state where its length direction is perpendicular to the length direction of the armrest body 100, and the auxiliary table 320 changes from a folded position to a fully extended position, presenting the following... Figure 3 The state shown.

[0068] Similarly, refer to Figures 3 to 8 When the tabletop assembly 300 is in the used position and the auxiliary tabletop 320 is in the fully extended position, when the linkage assembly 200 moves along... Figure 4When the linkage assembly 200 rotates counterclockwise toward the receiving cavity 110, the second end 220 of the linkage assembly 200 will rotate relative to the fixed cover 410. Through the interaction between the first tooth 421 and the third tooth 221, the rack 420 is driven to rotate... Figure 4 Move to the left. During the movement of the rack 420, the engagement between the second convex tooth 422 and the first gear ring 430 causes the rotating shaft 330 to move along... Figure 4 Rotate clockwise. Simultaneously, under the action of the gear set 440, the auxiliary tabletop 320 rotates from its fully extended position to its folded position. Thus, before the tabletop assembly 300 enters the receiving cavity 110, its length direction is already parallel to the length direction of the armrest body 100. Finally, after the connecting rod assembly 200 is fully inserted into the receiving cavity 110, the tabletop assembly 300 is also simultaneously retracted into the receiving cavity 110.

[0069] It is worth noting that in the initial stage of the transmission assembly 400 driving the tabletop assembly 300 to switch from the storage position to the use position, if the tabletop assembly 300 has not completely moved out of the receiving cavity 110 before starting to rotate, it will cause interference between the tabletop assembly 300 and the inner wall of the receiving cavity 110, hindering the smooth movement of the tabletop assembly 300. To solve this problem, this design does not completely cover the outer side of the second end 220. (Refer to...) Figure 2 When the tabletop assembly 300 is in the retracted position, the first tooth 421 on the rack 420 and the third tooth 221 on the second end 220 do not engage, maintaining a certain distance between them. Only when the tabletop assembly 300 is completely removed from the receiving cavity 110 and the second end 220 rotates to a certain angle relative to the fixing cover 410, does the first tooth 421 begin to engage with the third tooth 221, thereby driving the first gear ring 430 and the rotating shaft 330 to rotate through the movement of the rack 420.

[0070] In this design, the gear set 440 includes: a fourth convex tooth 441, which is disposed on the outer peripheral wall of the fixed cover 410; a plurality of second gear rings 442, which are rotatably disposed on the main table plate 310 and mesh sequentially; a first rotating seat 443, which is rotatably disposed on the main table plate 310, and a fifth convex tooth 443a is disposed on the first rotating seat 443, which meshes with one of the second gear rings 442; a first connecting rod 444, one end of which is rotatably disposed on the first rotating seat 443; a universal joint 321 is disposed on the auxiliary table plate 320; a ball head 444a is disposed on the first connecting rod 444, and the ball head 444a is rotatably connected to the universal joint 321.

[0071] While the rack 420 drives the rotating shaft 330 to rotate via the first gear ring 430, multiple second gear rings 442 are provided on the outer peripheral wall of the fixed cover 410, and one of the second gear rings 442 meshes with the fifth convex tooth 443a. Simultaneously, as the rotating shaft 330 drives the main table 310 to rotate, the first rotating seat 443 rotates synchronously. When the first rotating seat 443 rotates, it drives the first connecting rod 444 to rotate. Since the first connecting rod 444 is rotatably connected to the universal joint 321 on the auxiliary table 320 via the ball joint 444a, the rotation of the first connecting rod 444 pushes the auxiliary table 320 to rotate relative to the main table 310, allowing the auxiliary table 320 to switch between a folded position and its maximum unfolded position.

[0072] For example, refer to Figure 9 At this time, the auxiliary table 320 is in the folded position. When the rotating shaft 330 drives the main table 310 to rotate, the engagement of multiple second gear rings 442 between the fifth convex tooth 443a and the fourth convex tooth 441 on the outer wall of the fixed cover 410 drives the first rotating seat 443 to rotate along... Figure 9 The rotation is counterclockwise as shown. When the first rotating seat 443 rotates, it drives the first connecting rod 444 to extend, thereby pushing the auxiliary table 320 to switch from the folded position to the folded position. Figure 6 The maximum expandable position is shown.

[0073] The solution also includes a support member 500, which is fixed on one of the second gear rings 442; when the auxiliary table 320 is switched from the folded position to the maximum unfolded position, the support member 500 rotates to abut against the auxiliary table 320 to provide support for the auxiliary table 320.

[0074] The support member 500 is configured as a support component for the auxiliary tabletop 320. Its function is to rotate synchronously to the bottom of the auxiliary tabletop 320 when the auxiliary tabletop 320 is switched to its maximum unfolded position, providing load-bearing support. Furthermore, since the support member 500 is connected to a second gear ring 442, during the process of switching the auxiliary tabletop 320 from its maximum unfolded position back to its folded position, the support member 500 will also rotate... Figure 6 The state shown, where it rests against the end face of the auxiliary table 320, is switched to... Figure 9 The state shown is that it is separated from the auxiliary table 320.

[0075] Furthermore, the transmission assembly 400 also includes a limiting member 450, which is disposed within the fixing cover 410. This member is used to keep the main table panel 310 fixed when the table panel assembly 300 is in the folded position and the maximum unfolded position. This ensures that the table panel assembly 300 remains fixed whether it is in the storage position within the receiving cavity 110 or in the use position outside the receiving cavity 110. This effectively prevents the table panel assembly 300 from moving accidentally during use, ensuring the safety and reliability of the user.

[0076] Specifically, the limiting component 450 includes a slider 451, an elastic component 452, and a second connecting rod 453.

[0077] The fixed cover 410 is provided with a movable channel 411. The slider 451 is movably disposed in the movable channel 411. One end of the slider 451 is provided with a movable groove 451a. The elastic element 452 is disposed in the movable channel 411, and one end of the elastic element 452 abuts against the slider 451, and the other end abuts against the inner wall of the movable channel 411. One end of the second connecting rod 453 is rotatably disposed in the movable groove 451a, and the other end is rotatably disposed on the first gear ring 430.

[0078] The elastic element 452 is preferably a spring. (Refer to...) Figure 4 At this time, the elastic element 452 is pressed against the slider 451, and the two ends of the second connecting rod 453 are respectively connected to the slider 451 and the first gear ring 430. The design of the movable groove 451a makes the axis of the second connecting rod 453 and the slider 451 form a certain angle. When the table assembly 300 is subjected to an external thrust parallel to the plane of the table assembly 300, it needs to overcome the elastic force of the elastic element 452 to make the table assembly 300 rotate relative to the connecting rod assembly 200. Since the axis of the second connecting rod 453 and the slider 451 are at an angle, the force transmitted from the rotating shaft 330 to the second connecting rod 453 through the first gear ring 430 is difficult for the slider 451 to overcome the elastic force of the elastic element 452. Therefore, the table assembly 300 is difficult to rotate, thus effectively preventing the accidental rotation of the table assembly 300.

[0079] Preferably, this solution also includes a pull rope 600, one end of which is fixed to the fixed cover 410 and the other end extends to one side of the main table 310. When the pull rope 600 is under force, it is used to drive the table assembly 300 to move inside and outside the receiving cavity 110.

[0080] It is worth noting that the linkage assembly 200 of this solution includes: a second rotating seat 230, which is disposed in the receiving cavity 110; a third link 240, one end of which is rotatably disposed on the second rotating seat 230 and the other end of which is rotatably disposed on the transmission assembly 400; and a fourth link 250, one end of which is rotatably disposed on the second rotating seat 230 and the other end of which is rotatably disposed on the transmission assembly 400. The second rotating seat 230, the third link 240, the fourth link 250 and the transmission assembly 400 form a four-bar linkage mechanism, which enables the linkage assembly 200 to rotate relative to the handrail body 100 when the pull rope 600 is under force, and enables the second end 220 of the linkage assembly 200 to rotate relative to the fixed cover 410.

[0081] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0082] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0083] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A handrail with a tabletop structure, characterized in that, include: The handrail body has an internal cavity for receiving it. A linkage assembly, comprising a first end and a second end, wherein the first end is rotatably disposed within the receiving cavity; A tabletop assembly, comprising a main tabletop and an auxiliary tabletop, wherein the auxiliary tabletop is rotatably connected to the main tabletop and can be switched between a folded position and a maximum unfolded position on the main tabletop; A transmission component is disposed between the main table and the second end to drive the auxiliary table to switch between the folded position and the maximum unfolded position; The table assembly has a storage position located within the receiving cavity and a use position located outside the receiving cavity; When in the storage position, the auxiliary table is located in the folded position and is stored together with the main table in the receiving cavity; When in the usage position, the auxiliary table is located in the maximum unfolded position and is flush with the end face of the main table.

2. The handrail with a tabletop structure as described in claim 1, characterized in that, The main tabletop is rotatably connected to the second end; When the tabletop assembly is in the storage position, the length direction of the main tabletop is parallel to the length direction of the armrest body; When the tabletop assembly is in the usage position, the length direction of the main tabletop is perpendicular to the length direction of the armrest body.

3. The handrail with a tabletop structure as described in claim 1, characterized in that, The transmission assembly includes: A fixed cover is provided, and the second end of the connecting rod assembly is rotatably mounted on the fixed cover. A rack is movably disposed within the fixed cover. The rack is provided with a first convex tooth and a second convex tooth. The second end of the connecting rod assembly is provided with a third convex tooth. The first convex tooth and the third convex tooth mesh with each other. The first gear ring, the table assembly includes a rotating shaft, the first gear ring is fixed to the outer side wall of the rotating shaft and meshes with the second convex tooth portion; A gear set is disposed between the fixed cover and the auxiliary table, and is used to drive the auxiliary table to switch between the folded position and the maximum unfolded position when the rotating shaft rotates.

4. A handrail with a tabletop structure as described in claim 3, characterized in that, The gear set includes: The fourth convex tooth is provided on the outer peripheral wall of the fixed cover; Multiple second gear rings are rotatably mounted on the main table and mesh with each other in sequence. A first rotating seat is rotatably mounted on the main table. The first rotating seat is provided with a fifth convex tooth, which meshes with one of the second gear rings. The first connecting rod has one end rotatably mounted on the first rotating seat. A universal joint is provided on the auxiliary table, and a ball head is provided on the first connecting rod. The ball head is rotatably connected to the universal joint.

5. A handrail with a tabletop structure as described in claim 4, characterized in that, It also includes a support member, which is fixed to one of the second gear rings; When the auxiliary tabletop is switched from the folded position to the maximum unfolded position, the support member rotates to abut against the auxiliary tabletop to provide support for the auxiliary tabletop.

6. A handrail with a tabletop structure as described in claim 3, characterized in that, The transmission assembly also includes a limiting member disposed within the fixing cover, which is used to keep the main table panel fixed when the table panel assembly is in the folded position and the maximum unfolded position.

7. A handrail with a tabletop structure as described in claim 6, characterized in that, The limiting component includes: The slider has a movable channel inside the fixed cover, and the slider is movably disposed in the movable channel. One end of the slider has a movable groove. An elastic element is disposed within the movable channel, with one end of the elastic element abutting against the slider and the other end abutting against the inner wall of the movable channel; The second connecting rod has one end rotatably mounted in the movable groove and the other end rotatably mounted on the first gear ring.

8. A handrail with a tabletop structure as described in claim 3, characterized in that, It also includes a pull rope, one end of which is fixed to the fixed cover and the other end extends to one side of the main table. When the pull rope is under force, it is used to drive the table assembly to move inside and outside the receiving cavity.

9. A handrail with a tabletop structure as described in claim 1, characterized in that, The linkage assembly includes: The second rotating seat is disposed within the receiving cavity; The third link has one end rotatably mounted on the second rotating seat and the other end rotatably mounted on the transmission assembly; The fourth link has one end rotatably mounted on the second rotating seat and the other end rotatably mounted on the transmission assembly; wherein, The second rotating seat, the third link, the fourth link, and the transmission assembly form a four-bar linkage.

10. A vehicle, characterized in that, Including a handrail with a tabletop structure as described in any one of claims 1 to 9.

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