Synchronous linkage mechanism, armrest box and vehicle

Abstract

The invention discloses a synchronous linkage mechanism, an armrest box and a vehicle. The synchronous linkage mechanism comprises a first transmission mechanism, the first transmission mechanism comprises a first connecting rod assembly and a first tooth-shaped assembly, the first connecting rod assembly comprises a first swing arm and a first connecting rod, the first swing arm is used for being connected with a first cover plate of the armrest box, and the two opposite ends of the first connecting rod are rotationally connected to the first swing arm and the first tooth-shaped assembly correspondingly; the first tooth-shaped assembly is used for being rotatably installed on a storage box of the armrest box. The second transmission mechanism comprises a second connecting rod assembly and a second tooth-shaped assembly, one end of the second connecting rod assembly is rotationally connected to the second tooth-shaped assembly, the other end of the second connecting rod assembly is used for being connected with a second cover plate of the armrest box, and the second tooth-shaped assembly is used for being rotationally installed on a storage box of the armrest box; the first tooth-shaped assembly and the second tooth-shaped assembly are meshed through a tooth-shaped structure. The synchronous linkage mechanism can achieve synchronous opening of the first cover plate and the second cover plate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vehicles, and particularly relates to a synchronous linkage mechanism, an armrest box and a vehicle. BACKGROUND

[0002] The double-door armrest box is an automotive interior accessory, which is usually installed between front seats of a vehicle and has two cover plates that can be opened or closed. However, the two cover plates of the double-door armrest box in the related art are not linked, and due to the existence of factors such as machining errors and assembly errors, the opening process of the two cover plates cannot be synchronized. SUMMARY

[0003] The application discloses a synchronous linkage mechanism, an armrest box and a vehicle that can realize synchronous opening of a first cover plate and a second cover plate.

[0004] In a first aspect, the application provides a synchronous linkage mechanism applied to an armrest box, and the synchronous linkage mechanism comprises: a first transmission mechanism, the first transmission mechanism comprising a first linkage assembly and a first tooth-shaped assembly, one end of the first linkage assembly being rotatably connected to the first tooth-shaped assembly, the other end of the first linkage assembly being used for connecting a first cover plate of the armrest box, the first tooth-shaped assembly being used for being rotatably installed in a storage box of the armrest box; wherein the first linkage assembly comprises a first swing arm and a first linkage, the first swing arm being connected to the first cover plate, and opposite ends of the first linkage being rotatably connected to the first swing arm and the first tooth-shaped assembly, respectively; and a second transmission mechanism, the second transmission mechanism comprising a second linkage assembly and a second tooth-shaped assembly, one end of the second linkage assembly being rotatably connected to the second tooth-shaped assembly, the other end of the second linkage assembly being used for connecting a second cover plate of the armrest box, the second tooth-shaped assembly being used for being rotatably installed in the storage box of the armrest box, and the first tooth-shaped assembly and the second tooth-shaped assembly being engaged through a tooth-shaped structure.

[0005] As an optional implementation, the first tooth-shaped assembly further comprises a first rocker arm and a first gear, the first rocker arm and the first gear are both rotatable relative to the storage box, the first rocker arm is rotatably connected to the first linkage assembly, and the first gear is engaged in the second tooth-shaped assembly; When the second transmission mechanism is fixed and cannot move, the first rocker arm can rotate relative to the first gear; When the second transmission mechanism is not fixed and can move, the first rocker arm can drive the first gear to rotate synchronously.

[0006] As an optional implementation, the first toothed component further comprises a first ball, a first elastic member, either of the first gear and the first rocker arm is provided with a first placement space and the other is provided with a plurality of first ball grooves, the plurality of first ball grooves are arranged around a rotation center axis of the first toothed component, the first elastic member is arranged in the first placement space and elastically abuts against the first ball, so that a part of the first ball is located in the first placement space and another part is located in the first ball groove, and a direction of the first elastic member towards the first ball is the same as a direction of the first placement space towards the first ball groove.

[0007] As an optional implementation, the second toothed component further comprises a second rocker arm and a second gear, the second rocker arm and the second gear are rotatable relative to the receiving box, the second rocker arm is rotationally connected to the second linkage assembly, and the second gear is engaged with the first gear. When the first transmission mechanism is fixed and cannot move, the second rocker arm can rotate relative to the second gear. When the first transmission mechanism is not fixed and can move, the second rocker arm can drive the second gear to rotate synchronously.

[0008] As an optional implementation, the second toothed component further comprises a second ball, a second elastic member, either of the second gear and the second rocker arm is provided with a second placement space and the other is provided with a plurality of second ball grooves, the plurality of second ball grooves are arranged around a rotation center axis of the second toothed component, the second elastic member is arranged in the second placement space and elastically abuts against the second ball, so that a part of the second ball is located in the second placement space and another part is located in the second ball groove, and a direction of the second elastic member towards the second ball is the same as a direction of the second placement space towards the second ball groove.

[0009] As an optional implementation, either of the first rocker arm and the first gear is provided with a first protruding column and the other is provided with a first limiting groove, the first limiting groove is an arc-shaped groove extending around a rotation center axis of the first toothed component, and the first protruding column is inserted into the first limiting groove.

[0010] As an optional implementation, either of the first gear and the receiving box is provided with a second protruding column and the other is provided with a second limiting groove, the second limiting groove is an arc-shaped groove extending around a rotation center axis of the first toothed component, and the second protruding column is inserted into the second limiting groove.

[0011] As an optional implementation, the first transmission mechanism further comprises a first sleeve, the first sleeve is fixedly installed in the storage box of the armrest box, and the first tooth-shaped assembly is rotatably connected to the first sleeve.

[0012] In a second aspect, the present application further provides an armrest box, which comprises: a storage box having a storage space; a first cover plate and a second cover plate, each of the first cover plate and the second cover plate is movable relative to the storage box between a closed position covering the storage space and an open position exposing the storage space; and a synchronous linkage mechanism simultaneously connected to the first cover plate and the second cover plate.

[0013] In a second aspect, the present application further provides a vehicle, which comprises a vehicle body device having an interior space and an armrest box arranged in the interior space.

[0014] Compared with the prior art, the present application has the following beneficial effects: Since the first tooth-shaped assembly and the second tooth-shaped assembly are engaged through the tooth-shaped structure, the first tooth-shaped assembly and the second tooth-shaped assembly are synchronously rotated, so that the first linkage assembly and the second linkage assembly are synchronously moved, and then the first cover plate and the second cover plate are synchronously opened. In the synchronous linkage mechanism, in a first aspect, the first tooth-shaped assembly and the second tooth-shaped assembly are engaged through the tooth-shaped structure, and this matching form has the characteristics of high transmission precision and good synchronism, so that the synchronism of the first cover plate and the second cover plate in the opening process can be well ensured. In a second aspect, the first linkage assembly is used for transmission between the first cover plate and the first tooth-shaped assembly, and the second linkage assembly is used for transmission between the second cover plate and the second tooth-shaped assembly, the first linkage assembly and the second linkage assembly are linkage structures, compared with the tooth-shaped structure, the linkage structure has a simple structure and is easy to manufacture, so that the cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 A schematic view of a vehicle provided by the present application.

[0017] Figure 2 A schematic view of an armrest box provided by the present application.

[0018] Figure 3 schematic view of the first cover plate and the second cover plate of the armrest box according to the present application in the closed position, and Figure 2 schematic view of the armrest box according to the present application in the A direction.

[0019] Figure 4 schematic view of the first cover plate and the second cover plate of the armrest box according to the present application in the open position.

[0020] Figure 5 schematic view of the first cover plate of the armrest box according to the present application in the closed position and the second cover plate in the open position.

[0021] Figure 6 schematic view of the synchronization linkage mechanism in the armrest box according to the present application. Figure 5

[0022] schematic view of the first toothed assembly and the second toothed assembly in the synchronization linkage mechanism according to the present application. Figure 7 Figure 6 schematic view of the back of the structure according to the present application after being turned over 180°.

[0023] Figure 8 Figure 7 schematic view of the armrest box according to the present application along the B-B line.

[0024] Figure 9 schematic view of the first toothed assembly according to the present application after hiding the first rocker arm. Figure 5

[0025] schematic view of the first rocker arm in the first toothed assembly according to the present application. Figure 10 Figure 7 schematic view of the second toothed assembly in the synchronization linkage mechanism according to the present application.

[0026] Figure 11 Figure 8 schematic view of the second toothed assembly in the synchronization linkage mechanism according to the present application.

[0027] Figure 12 schematic view of the second toothed assembly in the synchronization linkage mechanism according to the present application. Figure 6

[0028] schematic view of the storage box in the armrest box according to the present application. Figure 13 Figure 5 schematic view of the C area in the storage box according to the present application.

[0029] Figure 14 Figure 13 schematic view of the C area in the storage box according to the present application.

[0030] Explanation of main reference signs: ​​​​​​Vehicle 1; vehicle body device 2; armrest box 3; storage box 10; box body 110; first mounting column 120; second mounting column 130; first cover plate 20; second cover plate 30; synchronous linkage mechanism 40; first transmission mechanism 410; first connecting rod assembly 411; first swing arm 4111; first connecting rod 4112; first toothed assembly 412; first rocker arm 4121; first gear 4122; first ball 4123; first elastic member 4124; first sleeve 413; first sleeve body 4131; first end cap 4132; second transmission mechanism 420; second connecting rod assembly 421; second swing arm 4211; second connecting rod 4212; second rocker arm 4221; second gear 4222; second ball 4223; second toothed assembly 422; second sleeve 423; switch assembly 50; first torsional spring 60; second torsional spring 70; first protruding column Y1; second protruding column Y2; storage space X1; first placement space X2; first spherical groove X3; second placement space X4; second spherical groove X5; first limiting groove X6; second limiting groove X7; first channel X8; second channel X9. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0032] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0033] In addition, in addition to indicating the orientation or positional relationship, some of the above terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those skilled in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0034] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0035] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0036] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0037] Please refer to Figure 1 and Figure 2 This application provides a vehicle 1, which may be, but is not limited to, a sedan, a sport utility vehicle (SUV), a multi-purpose vehicle (MPV), a pickup truck, a commercial vehicle, etc. The vehicle 1 includes a body assembly 2 and an armrest box 3. The body assembly 2 has an interior space, and the armrest box 3 is located within the interior space. The armrest box 3 can be installed between the front seats, serving both storage and arm support functions.

[0038] Please refer to Figures 2 to 3 This application provides an armrest box 3, which has a double-door structure. The armrest box 3 can be roughly rectangular, square, oval, circular, etc., and can be specifically set according to needs. This application only uses a roughly rectangular shape as an example. The armrest box 3 includes: a storage box 10, a first cover plate 20, a second cover plate 30, and a synchronous linkage mechanism 40.

[0039] The storage box 10 has a storage space X1, which can hold items.

[0040] Both the first cover plate 20 and the second cover plate 30 can move relative to the storage box 10 between a closed position covering the storage space X1 and an open position exposing the storage space X1. That is, when both the first cover plate 20 and the second cover plate 30 are in the closed position (e.g., Figure 3 As shown, Figure 3 for Figure 2The first cover plate 20 and the second cover plate 30 are both in the closed position (as shown in the schematic view of the armrest box in the A direction), the storage space X1 is covered by the first cover plate 20 and the second cover plate 30; when the first cover plate 20 and the second cover plate 30 are both in the open position (as shown), the storage space X1 is exposed. It should be noted that the first cover plate 20 and the second cover plate 30 can be rotatably connected to the storage box 10, or can be slidably connected to the storage box 10, and the subsequent content of the present application will be exemplarily described by taking the rotatable connection as an example. Figure 4

[0041] The synchronization linkage mechanism 40 is connected to the first cover plate 20 and the second cover plate 30 at the same time, so that the first cover plate 20 and the second cover plate 30 are synchronously moved in the process of moving from the closed position to the open position. That is, the first cover plate 20 and the second cover plate 30 are drivingly connected through the linkage mechanism, so as to avoid the opening process of the first cover plate 20 and the second cover plate 30 from the closed position to the open position.

[0042] It should be noted that in the opening process (from the closed position to the open position) of the first cover plate 20 and the second cover plate 30, the first cover plate 20 can be the driving end or the driven end, and similarly, the second cover plate 30 can be the driving end or the driven end.

[0043] Example scenario one: the armrest box 3 further comprises a first torsional spring, one end of the first torsional spring is connected to the first cover plate 20, and the other end of the first torsional spring is connected to the storage box 10. In the opening process, the first cover plate 20 is twisted to drive the first cover plate 20 to rotate by releasing energy of the first torsional spring, and the first cover plate 20 in turn drives the second cover plate 30 to rotate synchronously through the synchronization linkage mechanism 40. In this scenario, the first cover plate 20 is the driving end, and the second cover plate 30 is the driven end.

[0044] Example scenario two: the armrest box 3 further comprises a second torsional spring, one end of the second torsional spring is connected to the second cover plate 30, and the other end of the second torsional spring is connected to the storage box 10. In the opening process, the second cover plate 30 is twisted to drive the second cover plate 30 to rotate by releasing energy of the second torsional spring, and the second cover plate 30 in turn drives the first cover plate 20 to rotate synchronously through the synchronization linkage mechanism 40. In this scenario, the second cover plate 30 is the driving end, and the first cover plate 20 is the driven end.

[0045] ​Example scenario three: the armrest box 3 further comprises a first torsion spring and a second torsion spring. One end of the first torsion spring is connected to the first cover plate 20, and the other end of the first torsion spring is connected to the storage box 10. One end of the second torsion spring is connected to the second cover plate 30, and the other end of the second torsion spring is connected to the storage box 10. During the opening process, the first cover plate 20 is twisted by the first torsion spring to drive the first cover plate 20 to rotate. During the opening process, the second cover plate 30 is twisted by the second torsion spring to drive the second cover plate 30 to rotate. At this time, the synchronous linkage mechanism 40 connected to the first cover plate 20 and the second cover plate 30 can ensure that the opening process of the first cover plate 20 and the second cover plate 30 is synchronized. In this scenario, the first cover plate 20 can be the driving end, and the second cover plate 30 can be the driven end. For example, compared with the first cover plate 20, the second cover plate 30 has a larger opening frictional resistance, and the larger frictional resistance offsets more driving torque provided by the second torsion spring. Similarly, the first cover plate 20 can be the driven end, and the second cover plate 30 can be the driving end. For example, compared with the first cover plate 20, the second cover plate 30 has a larger opening frictional resistance, and the larger frictional resistance offsets more driving torque provided by the first torsion spring. Of course, in some cases, the first cover plate 20 and the second cover plate 30 can have no master-slave relationship.

[0046] Please refer to Figure 2 As an optional implementation, the armrest box 3 can further comprise a switch assembly 50, which can lock or release the first cover plate 20 and the second cover plate 30. When the switch assembly 50 locks the first cover plate 20 and the second cover plate 30, the first cover plate 20 and the second cover plate 30 are maintained in the closed position; when the switch assembly 50 releases the first cover plate 20 and the second cover plate 30, the first cover plate 20 and the second cover plate 30 can be moved from the closed position to the open position.

[0047] The switch assembly 50 can comprise a first lock tongue, a second lock tongue, and a button. The first lock tongue is used to lock the first cover plate 20 in the closed position, and the second lock tongue is used to lock the second cover plate 30 in the closed position. The button can be pressed and moved relative to the storage box 10 after being pressed. The button is used to drive the first lock tongue to rotate after being pressed, so that the first lock tongue releases the locking of the first cover plate 20. The button is also used to drive the second lock tongue to rotate after being pressed, so that the second lock tongue releases the locking of the second cover plate 30.

[0048] Please refer to Figure 2As an optional embodiment, the armrest box 3 further comprises a first torsion spring 60, one end of the first torsion spring 60 is connected to the first cover plate 20, and the other end of the first torsion spring 60 is connected to the storage box 10. The first torsion spring 60 can automatically drive the first cover plate 20 to rotate from the closed position to the open position.

[0049] Please refer to Figure 2 As an optional embodiment, the armrest box 3 further comprises a second torsion spring 70, one end of the second torsion spring 70 is connected to the second cover plate 30, and the other end of the second torsion spring 70 is connected to the storage box 10. The second torsion spring 70 can automatically drive the second cover plate 30 to rotate from the closed position to the open position.

[0050] In combination with the above-mentioned switch assembly 50, when it is needed to open the first cover plate 20 and the second cover plate 30, the user can press the button to make the first lock tongue release the locking of the first cover plate 20 and make the second lock tongue release the locking of the second cover plate 30. After the first lock tongue no longer locks the first cover plate 20, the first torsion spring 60 automatically releases energy and twists to drive the first cover plate 20 to rotate from the closed position to the open position; similarly, after the second lock tongue no longer locks the second cover plate 30, the second torsion spring 70 automatically releases energy and twists to drive the second cover plate 30 to rotate from the closed position to the open position. When it is needed to close the first cover plate 20 and the second cover plate 30, the user can press the first cover plate 20 and / or the second cover plate 30 with the hand to make the first cover plate 20 and the second cover plate 30 rotate from the open position to the closed position, in this process, the first torsion spring 60 reversely twists to accumulate energy under the driving of the first cover plate 20, and the second torsion spring 70 reversely twists to accumulate energy under the driving of the second cover plate 30.

[0051] The linkage structure in the armrest box 3 will be described in detail below in combination with the drawings.

[0052] Please refer to Figures 3 to 6 The embodiment of the present application further provides a synchronous linkage mechanism 40 applied to the armrest box 3, the synchronous linkage mechanism 40 comprises: a first transmission mechanism 410 and a second transmission mechanism 420.

[0053] The first transmission mechanism 410 comprises a first linkage assembly 411 and a first toothed assembly 412, one end of the first linkage assembly 411 is rotatably connected to the first toothed assembly 412, and the other end of the first linkage assembly 411 is used for connecting the first cover plate 20 of the armrest box 3, and the first toothed assembly 412 is used for being rotatably installed on the storage box 10 of the armrest box 3. Wherein, the first linkage assembly 411 comprises a first swing arm 4111 and a first linkage 4112 (as shown in Figure 6The first swing arm 4111 is connected to the first cover plate, and opposite ends of the first connecting rod 4112 are rotatably connected to the first swing arm 4111 and the first toothed component 412, respectively.

[0054] The second transmission mechanism 420 comprises a second connecting rod assembly 421 and a second toothed component 422. One end of the second connecting rod assembly 421 is rotatably connected to the second toothed component 422, and the other end of the second connecting rod assembly 421 is used to connect the second cover plate 30 of the armrest box 3. The second toothed component 422 is used to be rotatably mounted to the storage box 10 of the armrest box 3. The first toothed component 412 and the second toothed component 422 are engaged through a toothed structure.

[0055] During the opening process of the first cover plate 20 (from the closed position to the open position), the first cover plate 20 can drive the first connecting rod assembly 411 to move, and the first connecting rod assembly 411 in turn drives the first toothed component 412 to rotate relative to the storage box 10 in a first direction.

[0056] During the opening process of the second cover plate 30 (from the closed position to the open position), the second cover plate 30 can drive the second connecting rod assembly 421 to move, and the second connecting rod assembly 421 in turn drives the second toothed component 422 to rotate relative to the storage box 10 in a second direction.

[0057] It can be understood that, since the first toothed component 412 and the second toothed component 422 are engaged through a toothed structure, the first toothed component 412 and the second toothed component 422 are synchronously rotated, so that the first connecting rod assembly 411 and the second connecting rod assembly 421 are synchronously moved, and then the first cover plate 20 and the second cover plate 30 can be synchronously opened. In the synchronous linkage mechanism 40, on the one hand, the first toothed component 412 and the second toothed component 422 are engaged through a toothed structure, and this matching form has the characteristics of high transmission precision and good synchronization, so as to well ensure the synchronization of the first cover plate 20 and the second cover plate 30 during the opening process. On the other hand, the first connecting rod assembly 411 is used for transmission between the first cover plate 20 and the first toothed component 412, and the second connecting rod assembly 421 is used for transmission between the second cover plate 30 and the second toothed component 422. The first connecting rod assembly 411 and the second connecting rod assembly 421 are connecting rod structures, and compared with the toothed structure, the connecting rod structure has a simple structure and is easy to manufacture, so as to reduce the cost.

[0058] It can be understood that the synchronous linkage mechanism 40 provided by the present application can also realize the synchronous closing of the first cover plate 20 and the second cover plate 30. In the closing process of the first cover plate 20 (from the opening position to the closing position), the first cover plate 20 can drive the first linkage assembly 411 to move, and the first linkage assembly 411 in turn drives the first toothed assembly 412 to rotate relative to the storage box 10 in the second direction. In the closing process of the second cover plate 30 (from the opening position to the closing position), the second cover plate 30 can drive the second linkage assembly 421 to move, and the second linkage assembly 421 in turn drives the second toothed assembly 422 to rotate relative to the storage box 10 in the first direction. It can be understood that, since the first toothed assembly 412 and the second toothed assembly 422 are engaged through the toothed structure, the first toothed assembly 412 and the second toothed assembly 422 are synchronously rotated, so that the first linkage assembly 411 and the second linkage assembly 421 are synchronously moved, and then the first cover plate 20 and the second cover plate 30 can be realized to be synchronously closed.

[0059] The first transmission mechanism 410 will be described in detail below with reference to the accompanying drawings.

[0060] Please refer to Figure 6 As an optional embodiment, the first toothed assembly 412 further comprises a first rocker arm 4121 and a first gear 4122. The first rocker arm 4121 and the first gear 4122 are both rotatable relative to the storage box 10, and the first rocker arm 4121 is rotationally connected to the first linkage assembly 411, and the first gear 4122 is engaged with the second toothed assembly 422. The first gear 4122 can be an incomplete gear, that is, the gear has teeth only on part of the circumference.

[0061] When the second transmission mechanism 420 is fixed and cannot move, the first rocker arm 4121 can rotate relative to the first gear 4122. That is, since the first gear 4122 is in engagement with the second toothed assembly 422, if the second transmission mechanism 420 cannot move, the first gear 4122 will also be unable to rotate. In the state that the first gear 4122 cannot move, the first rocker arm 4121 can rotate independently, that is, if the first rocker arm 4121 is driven by the first linkage assembly 411 at this time, the first rocker arm 4121 will rotate relative to the first gear 4122.

[0062] When the second transmission mechanism 420 is not fixed and movable, the first rocker arm 4121 can drive the first gear 4122 to rotate synchronously. That is, since the first gear 4122 is in meshing state with the second toothed component 422, if the second transmission mechanism 420 is movable, it means that the first gear 4122 is also rotatable. In the state that the first gear 4122 is movable, the first rocker arm 4121 and the first gear 4122 are in synchronous rotary motion, that is, if the first rocker arm 4121 is driven by the first connecting rod assembly 411 at this time, the first rocker arm 4121 will drive the first gear 4122 to rotate synchronously.

[0063] It can be understood that the above functions can enable the armrest box 3 to realize the "single closing of the first cover plate 20" function, that is, when the first cover plate 20 and the second cover plate 30 are both in the open position, through the intervention of external force (the "external force" refers to the force acting on the armrest box 3), only the first cover plate 20 can be closed. Therefore, the synchronous linkage mechanism 40 provided by the present application not only enables the first cover plate 20 and the second cover plate 30 of the armrest box 3 to be opened synchronously and closed synchronously, but also enables the first cover plate 20 to be closed singly. In another aspect, the realization of the "single closing of the first cover plate 20" function can avoid damage to the synchronous linkage mechanism 40.

[0064] Exemplary explanation: when the first cover plate 20 and the second cover plate 30 are both in the open position, if the user uses the right hand to fix the second cover plate 30 at the current position, the second transmission mechanism 420 is fixed by the second cover plate 30 and cannot be moved, so that the first gear 4122 cannot be rotated. At this time, if the user uses the left hand to press the first cover plate 20, the first cover plate 20 will drive the first connecting rod assembly 411 to move, and the first connecting rod assembly 411 will in turn drive the first rocker arm 4121 to rotate relative to the first gear 4122, so that the first cover plate 20 can be closed. Finally, the first cover plate 20 is in the closed position, and the second cover plate 30 is in the open position.

[0065] Please refer to Figures 7 to 11 As an optional embodiment, either the first gear 4122 or the first rocker arm 4121 is provided with a first placement space X2 and the other is provided with a plurality of first spherical grooves X3, and the plurality of first spherical grooves X3 are arranged around the rotation center axis of the first toothed component 412, and the first spherical groove X3 is arranged opposite to the first placement space X2. The number of first spherical grooves X3 can be 2, 3, 4, 5, 6, etc.

[0066] In the first embodiment, the first placement space X2 is arranged on the side of the first gear 4122 facing the first rocker arm 4121, and the first spherical groove X3 is arranged on the side of the first rocker arm 4121 facing the first gear 4122, as shown in Figure 9 ​

[0067] In the second embodiment, the first placement space X2 is arranged on one side of the first gear 4122 facing the first rocker arm 4121, and the first spherical groove X3 is arranged on one side of the first rocker arm 4121 facing the first gear 4122.

[0068] It should be noted that the subsequent content of the present application is described based on the first embodiment (as shown in Figure 9 ).

[0069] The first gear assembly 412 further comprises a first spherical member 4123 and a first elastic member 4124. The first elastic member 4124 can be a spring, rubber or any other elastic object. The first elastic member 4124 is arranged in the first placement space X2 and elastically abuts against the first spherical member 4123, so that a part of the first spherical member 4123 is located in the first placement space X2 and another part is located in the first spherical groove X3. The direction of the first elastic member 4124 towards the first spherical member 4123 is the same as the direction of the first placement space X2 towards the first spherical groove X3. That is, the first elastic member 4124 has a certain compression amount. In this way, the first elastic member 4124 exerts an elastic abutting force on the first spherical member 4123, so that a part of the first spherical member 4123 is located in the first spherical groove X3 (the first spherical groove X3 can only accommodate part of the first spherical member 4123), and another part is located in the first placement space X2. The first placement space X2 can be a cylindrical hole, and the first spherical groove X3 is a groove matching the outer contour shape of the first spherical member 4123.

[0070] When the second transmission mechanism 420 is movable, the first spherical member 4123 is always located in the same first spherical groove X3, so that the first rocker arm 4121 can drive the first gear 4122 to rotate synchronously through the first spherical member 4123.

[0071] When the second transmission mechanism 420 is fixed and cannot move, the first spherical member 4123 can be switched between the first spherical grooves X3, so that the first rocker arm 4121 can rotate relative to the first gear 4122.

[0072] Taking the example of “the first placement space X2 is arranged on the first gear 4122, and the first spherical groove X3 is arranged on the first rocker arm 4121”, it can be understood that if the first connecting rod assembly 411 drives the first rocker arm 4121, the first rocker arm 4121 will exert a first inclined force on the first spherical member 4123. The first inclined force can be decomposed into two directional components: a first component F1 and a second component F2, as shown in Figure 9The first force F1 is in the direction that the first spherical member 4123 is towards the first elastic member 4124, that is, the elastic abutting force (hereinafter referred to as the first elastic abutting force) of the first elastic member 4124 to the first spherical member 4123 is opposite to the first force F1. The second force F2 is perpendicular to the first force F1 and tangent to the rotation direction of the first rocker arm 4121. The second force F2 will be transmitted to the first gear 4122 and form a torque to the first gear 4122. When the second transmission mechanism 420 is movable, the first gear 4122 is rotatable. In this case, the first gear 4122 will rotate synchronously with the first rocker arm 4121 under the torque of the second force F2, that is, the first spherical member 4123 is always in the same first spherical groove X3, so that the first rocker arm 4121 can drive the first gear 4122 to rotate synchronously through the first spherical member 4123. In this way, the first cover plate 20 and the second cover plate 30 can be opened and closed synchronously. When the second transmission mechanism 420 is fixed and cannot move (for example, the user uses the right hand to fix the second cover plate 30 at the current position), the first gear 4122 cannot rotate. In this case, if the first force F1 is greater than the first elastic abutting force (for example, the user gradually increases the pressing force on the first cover plate 20 with the left hand), the first elastic member 4124 is compressed, and the first spherical member 4123 follows the first elastic member 4124 to enter the first placement space X2 and gradually exit the current first spherical groove X3, so that the first rocker arm 4121 can rotate relative to the first gear 4122. After the first rocker arm 4121 rotates by a certain angle, the first spherical member 4123 is pushed into another first spherical groove X3 by the first elastic member 4124. If the first rocker arm 4121 continues to rotate, the above process is repeated, and the first spherical member 4123 enters different first spherical grooves X3 in sequence. In this way, the "single closing" function of the first cover plate 20 can be realized.

[0073] Please refer to Figure 8 and Figure 11 As an optional embodiment, two adjacent first spherical grooves X3 are spaced apart, and a first channel X8 is arranged between the two adjacent first spherical grooves X3, and the first channel X8 communicates the first spherical grooves X3. It can be understood that the first channel X8 can guide the first spherical member 4123 to roll around the center axis of the first gear assembly 412, so as to smoothly roll from one first spherical groove X3 to another adjacent first spherical groove X3.

[0074] Please refer to Figures 10 to 12As an optional implementation, either of the first rocker arm 4121 and the first gear 4122 is provided with a first protruding column Y1, and the other is provided with a first limiting slot X6. The first protruding column Y1 is a protruding structure, and the first limiting slot X6 is a groove structure or a through-hole structure. The first limiting slot X6 is an arc-shaped slot extending along the rotation center axis of the first gear assembly 412, that is, the first limiting slot X6 is arc-shaped and centered on the rotation center axis of the first gear assembly 412. The first protruding column Y1 is inserted into the first limiting slot X6.

[0075] In the first implementation, the first protruding column Y1 is arranged on one side of the first gear 4122 facing the first rocker arm 4121, and the first limiting slot X6 is arranged on one side of the first rocker arm 4121 facing the first gear 4122, as shown in Figure 10 and Figure 11 .

[0076] In the second implementation, the first protruding column Y1 is arranged on one side of the first rocker arm 4121 facing the first gear 4122, and the first limiting slot X6 is arranged on one side of the first gear 4122 facing the first rocker arm 4121.

[0077] During the rotation of the first rocker arm 4121 relative to the first gear 4122, the first protruding column Y1 slides along the first limiting slot X6. It can be understood that the first limiting slot X6 can guide the first protruding column Y1, and through the cooperation of the first limiting slot X6 and the first protruding column Y1, the first rocker arm 4121 and the first gear 4122 can have high coaxiality. In addition, the two ends of the first limiting slot X6 in the direction of the first limiting slot X6 can hinder the first protruding column Y1, so that the first spherical part 4123 can be prevented from being separated from the first spherical slot X3 or the last first spherical slot X3 in the plurality of first spherical slots X3.

[0078] Please refer to Figure 8 , Figure 13 and Figure 14 , as an optional implementation, either of the first gear 4122 and the receiving box 10 is provided with a second protruding column Y2, and the other is provided with a second limiting slot X7. The second protruding column Y2 is a protruding structure, and the second limiting slot X7 is a groove structure or a through-hole structure. The second limiting slot X7 is an arc-shaped slot extending along the rotation center axis of the first gear assembly 412, that is, the second limiting slot X7 is arc-shaped and centered on the rotation center axis of the first gear assembly 412. The second protruding column Y2 is inserted into the second limiting slot X7.

[0079] In the first embodiment, the second protrusion Y2 is arranged on the side of the first gear 4122 facing the storage box 10 (i.e. the second protrusion Y2 is arranged on the side of the first gear 4122 facing away from the first swing arm 4121, as shown in Figure 8 In the first embodiment, the second protrusion Y2 is arranged on the side of the first gear 4122 facing the storage box 10 (i.e. the second protrusion Y2 is arranged on the side of the first gear 4122 facing away from the first swing arm 4121, as shown in Figure 14 In the first embodiment, the second protrusion Y2 is arranged on the side of the first gear 4122 facing the storage box 10 (i.e. the second protrusion Y2 is arranged on the side of the first gear 4122 facing away from the first swing arm 4121, as shown in

[0080] In the second embodiment, the second protrusion Y2 is arranged on the side of the storage box 10 facing the first gear 4122, and the second limiting slot X7 is arranged on the side of the first gear 4122 facing the storage box 10 (i.e. the second limiting slot X7 is arranged on the side of the first gear 4122 facing away from the first swing arm 4121).

[0081] In the first embodiment, the second protrusion Y2 is arranged on the side of the first gear 4122 facing the storage box 10 (i.e. the second protrusion Y2 is arranged on the side of the first gear 4122 facing away from the first swing arm 4121, as shown in

[0082] Please refer to Figure 6 As an optional embodiment, the first linkage assembly 411 comprises a first swing arm 4111 and a first linkage 4112, the opposite ends of the first swing arm 4111 are respectively connected to the first cover plate 20 and the first linkage 4112, and the end of the first linkage 4112 away from the first swing arm 4111 is connected to the first gear assembly 412. Among them, the first swing arm 4111 is fixedly connected to the first cover plate 20, that is, the first swing arm 4111 and the first cover plate 20 are synchronous rotation. The first linkage 4112 is rotationally connected to the first swing arm 4111, and the first linkage 4112 is rotationally connected to the first swing arm 4121. Optionally, the opposite ends of the first linkage 4112 are respectively detachably connected to the first swing arm 4111 and the first swing arm 4121. It can be understood that through the first swing arm 4111 and the first linkage 4112, the first cover plate 20 can transmit the rotary motion to the first swing arm 4121.

[0083] Please refer to Figure 6 、 Figure 9 and 14As an optional embodiment, the first transmission mechanism 410 further comprises a first sleeve 413, the first sleeve 413 is fixedly installed on the receiving box 10 of the armrest box 3, and the first tooth-shaped assembly 412 is rotatably connected to the first sleeve 413. Specifically, the receiving box 10 comprises a box body 110 and a first mounting column 120 (as shown in Figure 14 ), wherein the box body 110 has the storage space X1 described above, and the first mounting column 120 is protrudingly arranged on the box body 110. The first transmission mechanism 410 further comprises a first sleeve 413 (as shown in Figure 6 and Figure 9 ), the first sleeve 413 is fixedly inserted on the first mounting column 120, that is, the first sleeve 413 is fixedly arranged and cannot move. The first sleeve 413 comprises a first sleeve body 4131 and a first end cover 4132 (as shown in Figure 9 ), the first sleeve body 4131 is a hollow column and is sleeved on the outer periphery of the first mounting column 120, and the first end cover 4132 is connected to one end of the first sleeve body 4131. The first swing arm 4121 and the first gear 4122 are both rotatably sleeved on the outer periphery of the first sleeve body 4131. The first end cover 4132 is located on the side of the first swing arm 4121 away from the first gear 4122, so that the first swing arm 4121 and the first gear 4122 can be prevented from being separated from the receiving box 10.

[0084] Optionally, the first sleeve 413 is detachably connected to the first swing arm 4121 and the first gear 4122, respectively.

[0085] Optionally, the first sleeve 413 is detachably connected to the first mounting column 120, and the first swing arm 4111 is detachably connected to the first cover plate 20.

[0086] The above is the introduction of the first transmission mechanism 410, and the second transmission mechanism 420 will be described in detail below in combination with the drawings. The second transmission mechanism 420 can adopt the same structure as the first transmission mechanism 410, and the specific conditions of the second transmission mechanism 420 can be compared and referred to the introduction of the first transmission mechanism 410.

[0087] Please refer to Figure 6 As an optional embodiment, the second tooth-shaped assembly 422 further comprises a second swing arm 4221 and a second gear 4222. The second swing arm 4221 and the second gear 4222 are both rotatable relative to the receiving box 10, the second swing arm 4221 is rotatably connected to the second connecting rod assembly 421, and the second gear 4222 is engaged with the first gear 4122. The second gear 4222 can be an incomplete gear, that is, the gear teeth are only arranged on part of the circumference.

[0088] When the first transmission mechanism 410 is fixed and cannot move, the second rocker arm 4221 can rotate relative to the second gear 4222. That is, since the second gear 4222 is in meshing state with the first toothed component 412, if the first transmission mechanism 410 cannot move, it will cause the second gear 4222 to also be unable to rotate. In the state that the second gear 4222 cannot move, the second rocker arm 4221 can be independently rotated, that is, if the second rocker arm 4221 at this time is driven by the second connecting rod assembly 421, the second rocker arm 4221 will rotate relative to the second gear 4222.

[0089] When the first transmission mechanism 410 is not fixed and can move, the second rocker arm 4221 can drive the second gear 4222 to rotate synchronously. That is, since the second gear 4222 is in meshing state with the first toothed component 412, if the first transmission mechanism 410 can move, it means that the second gear 4222 can also rotate. In the state that the second gear 4222 can move, the second rocker arm 4221 and the second gear 4222 are synchronously rotated, that is, if the second rocker arm 4221 at this time is driven by the second connecting rod assembly 421, the second rocker arm 4221 will drive the second gear 4222 to rotate synchronously.

[0090] It can be understood that the above functions can enable the armrest box 3 to realize the "single closing of the second cover plate 30" function, that is, when the first cover plate 20 and the second cover plate 30 are both in the open position, through the intervention of external force (the "external force" refers to the force outside the armrest box 3), only the second cover plate 30 can be closed. Therefore, the synchronous linkage mechanism 40 provided by the present application not only enables the first cover plate 20 and the second cover plate 30 of the armrest box 3 to be synchronously opened and closed, but also enables the second cover plate 30 to be single closed, and from another angle, the realization of the "single closing of the second cover plate 30" function can avoid damage to the synchronous linkage mechanism 40.

[0091] Exemplary explanation: when the first cover plate 20 and the second cover plate 30 are both in the open position, if the user uses the left hand to fix the first cover plate 20 in the current position, the first transmission mechanism 410 is fixed and cannot move, so that the second gear 4222 cannot rotate. At this time, if the user presses the second cover plate 30 with the right hand, the second cover plate 30 will drive the second connecting rod assembly 421 to move, and the second connecting rod assembly 421 will in turn drive the second rocker arm 4221 to rotate relative to the second gear 4222, so that the second cover plate 30 can be closed. Finally, the second cover plate 30 is in the closed position, and the first cover plate 20 is in the open position.

[0092] Please refer to Figures 7 to 8As an optional embodiment, either the second gear 4222 or the second rocker arm 4221 is provided with a second placement space X4 and the other is provided with a plurality of second spherical grooves X5, and the plurality of second spherical grooves X5 are arranged around the rotation center axis of the second gear assembly 422, and the second spherical grooves X5 are arranged opposite to the second placement space X4. The number of the second spherical grooves X5 can be 2, 3, 4, 5, 6, etc.

[0093] In the first embodiment, the second placement space X4 is arranged on the side of the second gear 4222 facing the second rocker arm 4221, and the second spherical groove X5 is arranged on the side of the second rocker arm 4221 facing the second gear 4222.

[0094] In the second embodiment, the second placement space X4 is arranged on the side of the second rocker arm 4221 facing the second gear 4222, and the second spherical groove X5 is arranged on the side of the second gear 4222 facing the second rocker arm 4221.

[0095] It should be noted that the subsequent content of the present application is only based on the second embodiment (the second placement space X4 is arranged on the second gear 4222, and the second spherical groove X5 is arranged on the second rocker arm 4221) for description.

[0096] The second gear assembly 422 further comprises a second spherical member 4223 and a second elastic member (not shown, which can be compared and referred to the related description of the first elastic member 4124). The second elastic member can be a spring, rubber or other elastic object. The second elastic member is arranged in the second placement space X4 and elastically abuts against the second spherical member 4223, so that a part of the second spherical member 4223 is located in the second placement space X4 and another part is located in the second spherical groove X5. The direction of the second elastic member towards the second spherical member 4223 is the same as the direction of the second placement space X4 towards the second spherical groove X5. That is, the second elastic member has a certain compression amount. In this way, the second elastic member exerts an elastic abutting action on the second spherical member 4223, so that a part of the second spherical member 4223 is located in the second spherical groove X5 (the second spherical groove X5 can only accommodate part of the second spherical member 4223), and another part is located in the second placement space X4. The second placement space X4 can be a cylindrical hole, and the second spherical groove X5 is a groove adapted to the outer contour shape of the second spherical member 4223.

[0097] When the first transmission mechanism 410 is not fixed and can move, the second spherical member 4223 is always located in the same second spherical groove X5, so that the second rocker arm 4221 can drive the second gear 4222 to rotate synchronously through the second spherical member 4223.

[0098] When the first transmission mechanism 410 is fixed and cannot move, the second spherical part 4223 can roll and switch between a plurality of second spherical grooves X5, so that the second rocker arm 4221 can rotate relative to the second gear 4222.

[0099] Taking the "second placement space X4 is arranged on the second gear 4222, and the second spherical groove X5 is arranged on the second rocker arm 4221" as an example, it can be understood that if the second connecting rod assembly 421 drives the second rocker arm 4221, the second rocker arm 4221 will exert a second tilting force on the second spherical part 4223, and the second tilting force can be decomposed into two directional components: a third component and a fourth component. The direction of the third component is the direction of the second spherical part 4223 towards the second elastic part, that is, the elastic abutting force (hereinafter referred to as the second elastic abutting force) of the second elastic part on the second spherical part 4223 is opposite to the third component; the fourth component is perpendicular to the third component and tangent to the rotation direction of the second rocker arm 4221, and the fourth component will be transmitted to the second gear 4222 and form a torque on the second gear 4222. When the first transmission mechanism 410 is not fixed and can move, the second gear 4222 can rotate, and in this case, since the fourth component forms a torque on the second gear 4222, the second gear 4222 will rotate synchronously with the second rocker arm 4221 under the driving of the torque, that is, the second spherical part 4223 is always in the same second spherical groove X5, so that the second rocker arm 4221 can drive the second gear 4222 to rotate synchronously through the second spherical part 4223, in this way, the first cover plate 20 and the second cover plate 30 can realize synchronous opening and synchronous closing. When the first transmission mechanism 410 is fixed and cannot move (for example, the user uses the left hand to fix the first cover plate 20 at the current position), the second gear 4222 cannot rotate, and in this case, if the above-mentioned third component is greater than the second elastic abutting force (for example, the user gradually increases the pressing force on the second cover plate 30 using the right hand), the second elastic part is compressed, and the second spherical part 4223 follows the second elastic part to enter the second placement space X4 and gradually exit the current second spherical groove X5, so that the second rocker arm 4221 can rotate relative to the second gear 4222. After the second rocker arm 4221 rotates by a certain amplitude, the second spherical part 4223 is pushed into another second spherical groove X5 by the second elastic part, and if the second rocker arm 4221 continues to rotate, the above-mentioned process is repeated, and the second spherical part 4223 enters different second spherical grooves X5 in sequence, so that the "single closing" function of the second cover plate 30 can be realized.

[0100] Please refer to Figure 8As an optional embodiment, two adjacent second spherical grooves X5 are spaced apart, and a second channel X9 is arranged between the two adjacent second spherical grooves X5, and the second channel X9 is communicated with the second spherical grooves X5. It can be understood that the second channel X9 can guide the second spherical part 4223 to roll around the rotation center axis of the second toothed assembly 422, so as to smoothly roll from one second spherical groove X5 to another adjacent second spherical groove X5.

[0101] As an optional embodiment, either the second rocker arm 4221 or the second gear 4222 is provided with a third protruding column, and the other is provided with a third limiting groove. The third protruding column is a protruding structure, and the third limiting groove is a groove structure or a through-hole structure. The third limiting groove is an arc-shaped groove extending along the rotation center axis of the second gear 4222 assembly, that is, the third limiting groove has an arc-shaped direction and is centered on the rotation center axis of the second gear 4222 assembly. The third protruding column is inserted into the third limiting groove.

[0102] In the first embodiment, the third protruding column is arranged on the side of the second gear 4222 facing the second rocker arm 4221, and the third limiting groove is arranged on the side of the second rocker arm 4221 facing the second gear 4222.

[0103] In the second embodiment, the third protruding column is arranged on the side of the second rocker arm 4221 facing the second gear 4222, and the third limiting groove is arranged on the side of the second gear 4222 facing the second rocker arm 4221.

[0104] During the rotation of the second rocker arm 4221 relative to the second gear 4222, the third protruding column slides along the third limiting groove. It can be understood that the third limiting groove can guide the third protruding column, and through the cooperation of the third limiting groove and the third protruding column, the second rocker arm 4221 and the second gear 4222 can have high coaxiality. In addition, the two ends of the third limiting groove in the direction of the third limiting groove can hinder the third protruding column, so as to avoid the second spherical part 4223 from separating from the first second spherical groove X5 or the last second spherical groove X5 in the plurality of second spherical grooves X5.

[0105] As an optional embodiment, either the second gear 4222 or the receiving box 10 is provided with a fourth protruding column, and the other is provided with a fourth limiting groove. The fourth protruding column is a protruding structure, and the fourth limiting groove is a groove structure or a through-hole structure. The fourth limiting groove is an arc-shaped groove extending along the rotation center axis of the second gear 4222 assembly, that is, the fourth limiting groove has an arc-shaped direction and is centered on the rotation center axis of the second gear 4222 assembly. The fourth protruding column is inserted into the fourth limiting groove.

[0106] In the first embodiment, the fourth protruding post is arranged on the side of the second gear 4222 facing the storage box 10 (i.e. the fourth protruding post is arranged on the side of the second gear 4222 facing away from the second swing arm 4221, as shown in the figure), and the fourth limiting slot is arranged on the side of the storage box 10 facing the second gear 4222. Figure 8

[0107] In the second embodiment, the fourth protruding post is arranged on the side of the storage box 10 facing the second gear 4222, and the fourth limiting slot is arranged on the side of the second gear 4222 facing the storage box 10 (i.e. the fourth limiting slot is arranged on the side of the second gear 4222 facing away from the second swing arm 4221).

[0108] During the rotation of the second gear 4222 relative to the storage box 10, the fourth protruding post slides along the fourth limiting slot. It can be understood that the fourth limiting slot can guide the fourth protruding post, and through the cooperation of the fourth limiting slot and the fourth protruding post, the storage box 10 and the second gear 4222 can have high coaxiality; in addition, the two ends of the fourth limiting slot in the direction of the fourth limiting slot can hinder the fourth protruding post, so as to avoid the second gear 4222 as an incomplete gear from being disengaged from the first gear 4122.

[0109] Please refer to Figure 6 As an optional embodiment, the second linkage assembly 421 includes a second swing arm 4211 and a second linkage 4212, the two opposite ends of the second swing arm 4211 are respectively connected to the second cover plate 30 and the second linkage 4212, and the end of the second linkage 4212 away from the second swing arm 4211 is connected to the second gear assembly 422. Among them, the second swing arm 4211 is fixedly connected to the second cover plate 30, that is, the second swing arm 4211 and the second cover plate 30 are synchronous rotation. The second linkage 4212 is rotationally connected to the second swing arm 4211, and the second linkage 4212 is rotationally connected to the second swing arm 4221. Optionally, the two opposite ends of the second linkage 4212 are respectively detachably connected to the second swing arm 4211 and the second swing arm 4221. It can be understood that through the second swing arm 4211 and the second linkage 4212, the second cover plate 30 can transmit the rotary motion to the second swing arm 4221.

[0110] Please refer to Figure 6 and Figure 14 ​As an optional implementation, the second transmission mechanism 420 further comprises a second sleeve 423 fixedly installed in the storage box 10 of the armrest box 3, and the second toothed assembly 422 is rotatably connected to the second sleeve 423. Specifically, the storage box 10 comprises a box body 110 and a second mounting column 130 (as shown in Figure 14 ), wherein the box body 110 has the storage space X1 described above, and the second mounting column 130 is protrudingly arranged on the box body 110. The second transmission mechanism 420 further comprises a second sleeve 423 (as shown in Figure 6 ), which is fixedly inserted into the second mounting column 130, i.e., the second sleeve 423 is fixedly arranged and cannot move. The second sleeve 423 comprises a second sleeve body and a second end cover, the second sleeve body is a hollow cylinder and is sleeved on the outer periphery of the second mounting column 130, and the second end cover is connected to one end of the second sleeve body. The second rocker arm 4221 and the second gear 4222 are rotatably sleeved on the outer periphery of the second sleeve body. The second end cover is located on the side of the second rocker arm 4221 away from the second gear 4222, so that the second rocker arm 4221 and the second gear 4222 can be prevented from being separated from the storage box 10.

[0111] Optionally, the second sleeve 423 is detachably connected to the second rocker arm 4221 and the second gear 4222, respectively.

[0112] Optionally, the second sleeve 423 is detachably connected to the second mounting column 130, and the second rocker arm 4211 is detachably connected to the second cover plate 30.

[0113] The above is the introduction of the second transmission mechanism 420.

[0114] The technical means disclosed in the present application scheme is not limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the present application, some improvements and refinements can be made, which are also considered within the protection scope of the present application.

Claims

1. A synchronous linkage mechanism (40), characterized in that, Applied to the armrest box (3), the synchronous linkage mechanism (40) includes: A first transmission mechanism (410) includes a first connecting rod assembly (411) and a first toothed assembly (412). One end of the first connecting rod assembly (411) is rotatably connected to the first toothed assembly (412), and the other end of the first connecting rod assembly (411) is used to connect to the first cover plate (20) of the armrest box (3). The first toothed assembly (412) is used to rotatably mount the storage box (10) of the armrest box (3). The first connecting rod assembly (411) includes a first swing arm (4111) and a first connecting rod (4112). The first swing arm (4111) is connected to the first cover plate, and the opposite ends of the first connecting rod (4112) are rotatably connected to the first swing arm (4111) and the first toothed assembly (412), respectively. The second transmission mechanism (420) includes a second linkage assembly (421) and a second toothed assembly (422). One end of the second linkage assembly (421) is rotatably connected to the second toothed assembly (422), and the other end of the second linkage assembly (421) is used to connect to the second cover plate (30) of the armrest box (3). The second toothed assembly (422) is used to rotatably install the storage box (10) on the armrest box (3). The first toothed assembly (412) and the second toothed assembly (422) mesh through the toothed structure.

2. The synchronous linkage mechanism (40) as described in claim 1, characterized in that, The first toothed assembly (412) also includes a first rocker arm (4121) and a first gear (4122). Both the first rocker arm (4121) and the first gear (4122) can rotate relative to the storage box (10). The first rocker arm (4121) is rotatably connected to the first connecting rod assembly (411), and the first gear (4122) meshes with the second toothed assembly (422). When the second transmission mechanism (420) is fixed and cannot move, the first rocker arm (4121) can rotate relative to the first gear (4122); When the second transmission mechanism (420) is not fixed and can move, the first rocker arm (4121) can drive the first gear (4122) to rotate synchronously.

3. The synchronous linkage mechanism (40) as described in claim 2, characterized in that, The first toothed assembly (412) further includes a first spherical member (4123) and a first elastic member (4124). Either the first gear (4122) or the first rocker arm (4121) is provided with a first placement space (X2) and the other is provided with a plurality of first spherical grooves (X3). The plurality of first spherical grooves (X3) surround the rotation center axis of the first toothed assembly (412). The first elastic member (4124) is disposed in the first placement space (X2) and elastically abuts against the first spherical member (4123) such that a part of the first spherical member (4123) is located in the first placement space (X2) and another part is located in the first spherical groove (X3). The direction of the first elastic member (4124) toward the first spherical member (4123) is the same as the direction of the first placement space (X2) toward the first spherical groove (X3).

4. The synchronous linkage mechanism (40) as described in claim 2, characterized in that, The second toothed assembly (422) also includes a second rocker arm (4221) and a second gear (4222). Both the second rocker arm (4221) and the second gear (4222) can rotate relative to the storage box (10). The second rocker arm (4221) is rotatably connected to the second linkage assembly (421), and the second gear (4222) meshes with the first gear (4122). When the first transmission mechanism (410) is fixed and cannot move, the second rocker arm (4221) can rotate relative to the second gear (4222); When the first transmission mechanism (410) is not fixed and can move, the second rocker arm (4221) can drive the second gear (4222) to rotate synchronously.

5. The synchronous linkage mechanism (40) as described in claim 4, characterized in that, The second toothed assembly (422) further includes a second spherical member (4223) and a second elastic member. Either the second gear (4222) or the second rocker arm (4221) is provided with a second placement space (X4) and the other is provided with a plurality of second spherical grooves (X5). The plurality of second spherical grooves (X5) surround the rotation center axis of the second toothed assembly (422). The second elastic member is disposed in the second placement space (X4) and elastically abuts against the second spherical member (4223) such that a portion of the second spherical member (4223) is located in the second placement space (X4) and another portion is located in the second spherical groove (X5). The direction of the second elastic member toward the second spherical member (4223) is the same as the direction of the second placement space (X4) toward the second spherical groove (X5).

6. The synchronous linkage mechanism (40) as described in claim 2, characterized in that, Either the first rocker arm (4121) or the first gear (4122) is provided with a first protrusion (Y1), and the other is provided with a first limiting groove (X6). The first limiting groove (X6) is an arc-shaped groove extending along the rotation center axis surrounding the first toothed assembly (412), and the first protrusion (Y1) is inserted into the first limiting groove (X6).

7. The synchronous linkage mechanism (40) as described in claim 2, characterized in that, Either the first gear (4122) or the storage box (10) is provided with a second protrusion (Y2), and the other is provided with a second limiting groove. The second limiting groove is an arc-shaped groove extending along the rotation center axis surrounding the first toothed assembly (412), and the second protrusion (Y2) is inserted into the second limiting groove.

8. The synchronous linkage mechanism (40) as described in any one of claims 1 to 7, characterized in that, The first transmission mechanism (410) further includes a first sleeve (413), which is used to fix the storage box (10) of the armrest box (3) in place, and the first toothed assembly (412) is rotatably connected to the first sleeve (413).

9. An armrest box (3), characterized in that, The armrest box (3) includes: Storage box (10), the storage box (10) has storage space (X1); A first cover plate (20) and a second cover plate (30), both of which are movable relative to the storage box (10) between a closed position covering the storage space (X1) and an open position exposing the storage space (X1); and The synchronous linkage mechanism (40) as described in any one of claims 1 to 8 is simultaneously connected to the first cover plate (20) and the second cover plate (30).

10. A vehicle (1), characterized in that, The vehicle (1) includes a body assembly and an armrest box (3) as described in claim 9, the body assembly having an interior space, and the armrest box (3) being disposed within the interior space.

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