Linkage mechanism, armrest box and vehicle

Abstract

The application discloses a linkage mechanism, an armrest box and a vehicle. The linkage mechanism comprises a first transmission mechanism and a second transmission mechanism. The first transmission mechanism comprises a first connecting rod assembly and a first toothed assembly. One end of the first connecting rod assembly is rotatably connected to the first toothed assembly, and the other end of the first connecting rod assembly is used for connecting a first cover plate of the armrest box. The first toothed assembly is rotatably installed in a storage box of the armrest box. The second transmission mechanism comprises a second connecting rod assembly and a second toothed assembly. One end of the second connecting rod assembly is rotatably connected to the second toothed assembly, and the other end of the second connecting rod assembly is used for connecting a second cover plate of the armrest box. The second toothed assembly is rotatably installed in the storage box of the armrest box. The first toothed assembly and the second toothed assembly are engaged through a toothed structure. The linkage mechanism provided by the application can realize synchronous opening of the first cover plate and the second cover plate.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to a linkage mechanism, a handrail box, and a vehicle. Background Technology

[0002] A double-door armrest is an automotive interior accessory, typically installed between the front seats, and features two openable / closeable covers. However, in related technologies, the two covers of a double-door armrest are not linked; due to factors such as manufacturing and assembly errors, the opening processes of the two covers cannot be synchronized. Utility Model Content

[0003] This application discloses a linkage mechanism, armrest box, and vehicle that can realize the simultaneous opening of the first cover plate and the second cover plate.

[0004] Firstly, this application provides a linkage mechanism applied to an armrest box, the linkage mechanism comprising: A first transmission mechanism, comprising a first connecting rod assembly and a first toothed assembly, wherein one end of the first connecting rod assembly is rotatably connected to the first toothed assembly, and the other end of the first connecting rod assembly is used to connect to the first cover plate of the armrest box; and the first toothed assembly is used to rotatably mount a storage box to the armrest box; and The second transmission mechanism includes a second connecting rod assembly and a second toothed assembly. One end of the second connecting rod assembly is rotatably connected to the second toothed assembly, and the other end of the second connecting rod assembly is used to connect to the second cover plate of the armrest box. The second toothed assembly is used to rotatably install a storage box in the armrest box. The first toothed assembly and the second toothed assembly are engaged by a toothed structure.

[0005] As an optional implementation, the first toothed assembly further includes a first rocker arm and a first gear, both of which can rotate relative to the storage box, and the first rocker arm is rotatably connected to the first linkage assembly, and the first gear meshes with the second toothed 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 assembly further includes a first spherical member and a first elastic member. Either the first gear or the first rocker arm is provided with a first placement space and the other is provided with a plurality of first spherical grooves. The plurality of first spherical grooves surround the rotation center axis of the first toothed assembly. The first elastic member is disposed in the first placement space and elastically abuts against the first spherical member, such that a portion of the first spherical member is located in the first placement space and another portion is located in the first spherical groove. The direction of the first elastic member toward the first spherical member is the same as the direction of the first placement space toward the first spherical groove.

[0007] As an optional implementation, the second toothed assembly further includes a second rocker arm and a second gear, both of which can rotate relative to the storage box, and the second rocker arm is rotatably connected to the second linkage assembly, and the second gear meshes 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 assembly further includes a second spherical member and a second elastic member. Either the second gear or the second rocker arm is provided with a second placement space, and the other is provided with a plurality of second spherical grooves. The plurality of second spherical grooves surround the rotation center axis of the second toothed assembly. The second elastic member is disposed in the second placement space and elastically abuts against the second spherical member, such that a portion of the second spherical member is located in the second placement space and another portion is located in the second spherical groove. The direction of the second elastic member toward the second spherical member is the same as the direction of the second placement space toward the second spherical groove.

[0009] As an optional implementation, either the first rocker arm or the first gear is provided with a first protrusion, and the other is provided with a first limiting groove, wherein the first limiting groove is an arc-shaped groove extending along the rotation center axis surrounding the first toothed assembly, and the first protrusion is inserted into the first limiting groove.

[0010] As an optional implementation, either the first gear or the storage box is provided with a second protrusion, 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 gear assembly, and the second protrusion is inserted into the second limiting groove.

[0011] As an optional implementation, the first transmission mechanism further includes a first sleeve, which is used to fix the storage box of the armrest box, and the first toothed assembly is rotatably connected to the first sleeve.

[0012] Secondly, this application also provides an armrest box, the armrest box comprising: A storage box, wherein the storage box has storage space; A first cover plate and a second cover plate, both of which are movable relative to the storage box between a closed position covering the storage space and an open position exposing the storage space; and A linkage mechanism is connected to both the first cover plate and the second cover plate.

[0013] Secondly, this application also provides a vehicle, the vehicle including a body assembly and an armrest box, the body assembly having an interior space, and the armrest box being disposed within the interior space.

[0014] Compared with the prior art, the beneficial effects of this application are as follows: Because the first and second toothed components mesh through their toothed structures, they rotate synchronously, causing the first and second connecting rod assemblies to move synchronously, thus enabling the first and second cover plates to open synchronously. In this linkage mechanism, firstly, the first and second toothed components mesh with a toothed structure, which offers high transmission accuracy and good synchronization, effectively ensuring the synchronicity of the first and second cover plates during opening. Secondly, a first connecting rod assembly transmits power between the first cover plate and the first toothed component, and a second connecting rod assembly transmits power between the second cover plate and the second toothed component. These connecting rod assemblies are linkage structures; compared to toothed structures, linkage structures are simpler to construct and easier to manufacture, thus reducing costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the vehicle provided in this application.

[0017] Figure 2 A schematic diagram of the armrest box provided in this application.

[0018] Figure 3 This is a schematic diagram showing the first and second covers of the armrest box in the closed position, provided in this application. Figure 2 The diagram shown is a schematic of the armrest box in direction A.

[0019] Figure 4 A schematic diagram showing the first and second covers of the armrest box provided in this application in the open position.

[0020] Figure 5 This is a schematic diagram showing the first cover of the armrest box provided in this application in the closed position and the second cover in the open position.

[0021] Figure 6 for Figure 5 The diagram shows the linkage mechanism in the armrest box.

[0022] Figure 7 for Figure 6 The first perspective view of the first toothed component and the second toothed component in the linkage mechanism shown.

[0023] Figure 8 for Figure 7 The diagram shows the back side of the structure after it has been flipped 180°.

[0024] Figure 9 for Figure 5 The cross-sectional view of the armrest box along line BB is shown.

[0025] Figure 10 for Figure 7 The diagram shows the first toothed assembly after the first rocker arm has been hidden.

[0026] Figure 11 for Figure 8 A schematic diagram of the first rocker arm in the first toothed assembly shown.

[0027] Figure 12 for Figure 6 A second perspective view of the first and second toothed components in the linkage mechanism shown.

[0028] Figure 13 for Figure 5 The diagram shows a storage box inside the armrest box.

[0029] Figure 14 for Figure 13 An enlarged view of area C in the storage box shown.

[0030] Explanation of key figure labels: Vehicle 1; Body assembly 2; Armrest box 3; Storage box 10; Box body 110; First mounting post 120; Second mounting post 130; First cover plate 20; Second cover plate 30; 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 spherical component 4123; First elastic component 4124; First sleeve 413; First sleeve body 4131; First end cover 4132; Second transmission mechanism Component 420; Second link assembly 421; Second swing arm 4211; Second link 4212; Second rocker arm 4221; Second gear 4222; Second spherical component 4223; Second toothed assembly 422; Second sleeve 423; Switch assembly 50; First torsion spring 60; Second torsion spring 70; First protrusion Y1; Second protrusion 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 Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0033] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[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, or 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 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 2(The diagram shows the armrest box in direction A). The storage space X1 is covered by the first cover 20 and the second cover 30. When both the first cover 20 and the second cover 30 are in the open position (e.g., Figure 4 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. The following content of this application will only illustrate the rotatable connection.

[0041] The linkage mechanism 40 is connected to both the first cover plate 20 and the second cover plate 30, so that the first cover plate 20 and the second cover plate 30 move synchronously as they move from the closed position to the open position. In other words, the first cover plate 20 and the second cover plate 30 are connected by a linkage structure to avoid any sequential order in the opening process of the first cover plate 20 and the second cover plate 30 moving from the closed position to the open position.

[0042] It should be noted that during the opening process of the first cover plate 20 and the second cover plate 30 (the process of moving from the closed position to the open position), the first cover plate 20 can be the active end or the passive end. Similarly, the second cover plate 30 can be the active end or the passive end.

[0043] Exemplary Scenario 1: The armrest box 3 also includes a first torsion spring, one end of which is connected to the first cover plate 20, and the other end of which is connected to the storage box 10. During the opening process, the first cover plate 20 is rotated by the energy released by the first torsion spring, and the first cover plate 20 then drives the second cover plate 30 to rotate synchronously through the linkage mechanism 40. In this scenario, the first cover plate 20 is the active end, and the second cover plate 30 is the driven end.

[0044] Exemplary Scenario 2: The armrest box 3 also includes a second torsion spring. One end of the second torsion spring is connected to the second cover plate 30, and the other end is connected to the storage box 10. During the opening process, the second cover plate 30 is rotated by the energy released by the second torsion spring, which in turn drives the first cover plate 20 to rotate synchronously via the linkage mechanism 40. In this scenario, the second cover plate 30 is the active end, and the first cover plate 20 is the driven end.

[0045] Example Scenario 3: The armrest box 3 also includes 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 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 is connected to the storage box 10. During the opening process, the first cover plate 20 is rotated by the torsion caused by the energy released by the first torsion spring. During the opening process, the second cover plate 30 is rotated by the torsion caused by the energy released by the second torsion spring. At this time, the linkage mechanism 40 connected to both the first cover plate 20 and the second cover plate 30 can ensure that the opening processes of the first cover plate 20 and the second cover plate 30 are synchronized. In this scenario, the first cover plate 20 can be the active 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 greater opening friction resistance, and the greater friction resistance offsets more of the 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 to the second cover plate, the first cover plate 20 has a greater opening frictional resistance, and the greater frictional resistance offsets more of the driving torque provided by the first torsion spring. Of course, in some cases, the first cover plate 20 and the second cover plate 30 may not have a driving-driven relationship.

[0046] Please refer to Figure 2 As an optional implementation, the armrest box 3 may further include 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 remain 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 move from the closed position to the open position.

[0047] The switch assembly 50 may include a first latch, a second latch, and a button. The first latch locks the first cover 20 in the closed position, and the second latch locks the second cover 30 in the closed position. The button can be pressed and, when pressed, moves relative to the storage box 10. The button, when pressed, drives the first latch to rotate, thereby releasing the first latch from locking the first cover 20. The button, when pressed, also drives the second latch to rotate, thereby releasing the second latch from locking the second cover 30.

[0048] Please refer to Figure 2As an optional implementation, the armrest box 3 further includes a first torsion spring 60, one end of which is connected to the first cover plate 20, and the other end of which 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 implementation, the armrest box 3 further includes a second torsion spring 70, one end of which is connected to the second cover plate 30, and the other end of which 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] The following description, using the switch assembly 50 as an example, describes the process of opening the first cover 20 and the second cover 30. The user presses a button to release the first latch from locking the first cover 20 and the second latch from locking the second cover 30. Once the first latch is no longer locking the first cover 20, the first torsion spring 60 releases energy and twists, causing the first cover 20 to rotate from the closed position to the open position. Similarly, once the second latch is no longer locking the second cover 30, the second torsion spring 70 releases energy and twists, causing the second cover 30 to rotate from the closed position to the open position. When closing the first cover 20 and the second cover 30, the user presses the first cover 20 and / or the second cover 30 with their hand to rotate them from the open position to the closed position. During this process, the first torsion spring 60 twists in the opposite direction under the influence of the first cover 20, accumulating energy, and the second torsion spring 70 twists in the opposite direction under the influence of the second cover 30, accumulating energy.

[0051] The linkage structure in armrest box 3 will be described in detail below with reference to the attached diagram.

[0052] Please refer to Figures 3 to 6 This application embodiment also provides a linkage mechanism 40 applied to the armrest box 3, the linkage mechanism 40 including: a first transmission mechanism 410 and a second transmission mechanism 420.

[0053] The 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 (e.g., ...). Figure 6As shown), 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.

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

[0055] During the opening process of the first cover plate 20 (the process of moving from the closed position to the open 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 first direction.

[0056] During the opening process of the second cover plate 30 (the process of moving from the closed position to the open 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 second direction.

[0057] It is understandable that, since the first toothed assembly 412 and the second toothed assembly 422 mesh through a toothed structure, they rotate synchronously, thereby causing the first connecting rod assembly 411 and the second connecting rod assembly 421 to move synchronously, thus enabling the first cover plate 20 and the second cover plate 30 to open synchronously. In this linkage mechanism 40, firstly, the first toothed assembly 412 and the second toothed assembly 422 mesh with a toothed structure. This type of engagement has the characteristics of high transmission accuracy and good synchronization, thus ensuring the synchronicity of the first cover plate 20 and the second cover plate 30 during the opening process. Secondly, the first connecting rod assembly 411 is used for transmission between the first cover plate 20 and the first toothed assembly 412, and the second connecting rod assembly 421 is used for transmission between the second cover plate 30 and the second toothed assembly 422. The first connecting rod assembly 411 and the second connecting rod assembly 421 are connecting rod structures. Compared with toothed structures, connecting rod structures are simpler to construct and easier to manufacture, thereby reducing costs.

[0058] It is understood that the linkage mechanism 40 provided in this application can also achieve synchronous closing of the first cover plate 20 and the second cover plate 30. During the closing process of the first cover plate 20 (the process of moving from the open position to the closed 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. During the closing process of the second cover plate 30 (the process of moving from the open position to the closed 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 is understood that since the first toothed assembly 412 and the second toothed assembly 422 are engaged through a toothed structure, the first toothed assembly 412 and the second toothed assembly 422 rotate synchronously, thereby making the first linkage assembly 411 and the second linkage assembly 421 move synchronously, thus achieving synchronous closing of the first cover plate 20 and the second cover plate 30.

[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 implementation, the first toothed assembly 412 further includes a first rocker arm 4121 and a first gear 4122. Both the first rocker arm 4121 and the first gear 4122 are rotatable relative to the storage box 10, and the first rocker arm 4121 is rotatably connected to the first connecting rod assembly 411, while the first gear 4122 meshes with the second toothed assembly 422. The first gear 4122 can be an incomplete gear, meaning it has teeth only on a portion of its 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 and the second toothed assembly 422 are in a meshing state, if the second transmission mechanism 420 is not movable, the first gear 4122 will also not rotate. In the state where the first gear 4122 is not movable, the first rocker arm 4121 can rotate independently; 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 rotate relative to the first gear 4122.

[0062] 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. That is, since the first gear 4122 and the second toothed assembly 422 are in a meshing state, if the second transmission mechanism 420 can move, it means that the first gear 4122 can also rotate. When the first gear 4122 can move, the first rocker arm 4121 and the first gear 4122 rotate synchronously. 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] Understandably, the aforementioned function enables the armrest box 3 to achieve the "single-closing of the first cover 20" function. That is, when both the first cover 20 and the second cover 30 are in the open position, only the first cover 20 can be closed by the intervention of an external force (the "external force" refers to a force outside the armrest box 3). Therefore, the linkage mechanism 40 provided in this application not only enables the first cover 20 and the second cover 30 of the armrest box 3 to open and close synchronously, but also enables the single-closing of the first cover 20. Furthermore, from another perspective, achieving the "single-closing of the first cover 20" function can prevent damage to the linkage mechanism 40.

[0064] Exemplary Description: When both the first cover plate 20 and the second cover plate 30 are in the open position, if the user uses their right hand to fix the second cover plate 30 in its current position, the second transmission mechanism 420 will be fixed by the second cover plate 30 and cannot move, thus preventing the first gear 4122 from rotating. At this time, if the user presses the first cover plate 20 with their left hand, the first cover plate 20 will drive the first connecting rod assembly 411 to move. The first connecting rod assembly 411 will then drive the first rocker arm 4121 to rotate relative to the first gear 4122, thereby closing the first cover plate 20. Ultimately, the first cover plate 20 will be in the closed position, and the second cover plate 30 will be in the open position.

[0065] Please refer to Figures 7 to 11 As an optional implementation, either the first gear 4122 or the first rocker arm 4121 may have a first placement space X2, and the other may have a plurality of first spherical grooves X3. The plurality of first spherical grooves X3 surround the rotation center axis of the first gear assembly 412, and the first spherical grooves X3 are arranged opposite to the first placement space X2. The number of first spherical grooves X3 may be 2, 3, 4, 5, 6, etc.

[0066] In a first embodiment, the first placement space X2 is located on the side of the first gear 4122 facing the first rocker arm 4121, and the first spherical groove X3 is located on the side of the first rocker arm 4121 facing the first gear 4122, as shown below. Figure 9 As shown.

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

[0068] It should be noted that the following content of this application only refers to the first implementation method (e.g., Figure 9 The above is a basic explanation.

[0069] The first toothed assembly 412 further includes a first spherical member 4123 and a first elastic member 4124. The first elastic member 4124 can be a spring, rubber, or other elastic material. The first elastic member 4124 is disposed within the first placement space X2 and elastically abuts against the first spherical member 4123, such that a portion of the first spherical member 4123 is located in the first placement space X2 and another portion 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. That is, the first elastic member 4124 has a certain amount of compression. With this arrangement, the first elastic member 4124 applies an elastic abutment to the first spherical member 4123, thereby ensuring that a portion of the first spherical member 4123 is located in the first spherical groove X3 (the first spherical groove X3 can only accommodate a portion of the first spherical member 4123), and the other portion 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 that fits the outer contour shape of the first spherical part 4123.

[0070] When the second transmission mechanism 420 is not fixed and can move, 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.

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

[0072] Taking "the first placement space X2 is located on the first gear 4122, and the first spherical groove X3 is located on the first rocker arm 4121" as an example: it can be understood that if the first connecting rod assembly 411 drives the first rocker arm 4121, the first rocker arm 4121 will apply a first tilting force to the first spherical component 4123. This first tilting force can be decomposed into two components: a first component force F1 and a second component force F2, such as... Figure 9As shown. The direction of the first component force F1 is from the first spherical member 4123 toward the first elastic member 4124, that is, the elastic abutment force of the first elastic member 4124 on the first spherical member 4123 (hereinafter referred to as the first elastic abutment force) is opposite to the first component force F1; the second component force F2 is perpendicular to the first component force F1 and tangent to the rotation direction of the first rocker arm 4121. The second component force F2 will be transmitted to the first gear 4122 and generate torque on the first gear 4122. When the second transmission mechanism 420 is not fixed and can move, the first gear 4122 can rotate. In this case, since the second component force F2 forms a torque on the first gear 4122, the first gear 4122 will rotate synchronously with the first rocker arm 4121 under the drive of the torque. That is to say, 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, when the user uses their right hand to fix the second cover plate 30 in the current position), the first gear 4122 cannot rotate. In this case, if the first component force F1 is greater than the first elastic abutment force (for example, when the user uses their left hand to gradually increase the pressing force on the first cover plate 20), the first elastic element 4124 is compressed, and the first spherical element 4123 follows the first elastic element 4124 into the first placement space X2 and gradually exits the current first spherical groove X3, thereby allowing the first rocker arm 4121 to rotate relative to the first gear 4122. After the first rocker arm 4121 rotates to a certain extent, the first spherical element 4123 is pushed into another first spherical groove X3 by the first elastic element 4124. If the first rocker arm 4121 continues to rotate, the above process is repeated, and the first spherical element 4123 enters different first spherical grooves X3 in sequence. In this way, the "single-close function of the first cover plate 20" can be realized.

[0073] Please refer to Figure 8 and Figure 11 As an optional implementation, two adjacent first spherical grooves X3 are spaced apart, and a first channel X8 is provided between two adjacent first spherical grooves X3, the first channel X8 connecting the first spherical grooves X3. It is understood that the first channel X8 can guide the first spherical member 4123, allowing it to roll around the rotation center axis of the first toothed assembly 412, thereby smoothly rolling 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 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 protrusion Y1 is a raised structure, and the first limiting groove X6 is a groove structure or a through-hole structure. The first limiting groove X6 is an arc-shaped groove extending along the rotation center axis surrounding the first toothed assembly 412; that is, the first limiting groove X6 has an arc-shaped trajectory, and its center is located at the rotation center axis of the first toothed assembly 412. The first protrusion Y1 is inserted into the first limiting groove X6.

[0075] In the first embodiment, the first protrusion Y1 is disposed on the side of the first gear 4122 facing the first rocker arm 4121, and the first limiting groove X6 is disposed on the side of the first rocker arm 4121 facing the first gear 4122, as shown below. Figure 10 and Figure 11 As shown.

[0076] In the second embodiment, the first protrusion Y1 is disposed on the side of the first rocker arm 4121 facing the first gear 4122, and the first limiting groove X6 is disposed on the 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 protrusion Y1 slides within the first limiting groove X6. It can be understood that the first limiting groove X6 guides the first protrusion Y1. Through the cooperation of the first limiting groove X6 and the first protrusion Y1, a high degree of coaxiality between the first rocker arm 4121 and the first gear 4122 can be ensured. Furthermore, both ends of the first limiting groove X6 in its direction can obstruct the first protrusion Y1, thereby preventing the first spherical component 4123 from disengaging from the first or last of the multiple first spherical grooves X3.

[0078] Please refer to Figure 8 , Figure 13 and Figure 14 As an optional implementation, 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 X7. The second protrusion Y2 is a raised structure, and the second limiting groove X7 is a groove structure or a through-hole structure. The second limiting groove X7 is an arc-shaped groove extending along the rotational center axis surrounding the first toothed assembly 412; that is, the second limiting groove X7 has an arcuate trajectory, and its center is located at the rotational center axis of the first toothed assembly 412. The second protrusion Y2 is inserted into the second limiting groove X7.

[0079] In the first embodiment, the second protrusion Y2 is disposed on the side of the first gear 4122 facing the storage box 10 (i.e., the second protrusion Y2 is disposed on the side of the first gear 4122 away from the first rocker arm 4121, such as...). Figure 8 As shown), the second limiting groove X7 is located on the side of the storage box 10 facing the first gear 4122, as shown. Figure 14 As shown.

[0080] In the second embodiment, the second protrusion Y2 is provided on the side of the storage box 10 facing the first gear 4122, and the second limiting groove X7 is provided on the side of the first gear 4122 facing the storage box 10 (that is, the second limiting groove X7 is provided on the side of the first gear 4122 away from the first rocker arm 4121).

[0081] During the rotation of the first gear 4122 relative to the storage box 10, the second protrusion Y2 slides within the second limiting groove X7. It can be understood that the second limiting groove X7 guides the second protrusion Y2. Through the cooperation of the second limiting groove X7 and the second protrusion Y2, a high degree of coaxiality between the storage box 10 and the first gear 4122 can be ensured. Furthermore, both ends of the second limiting groove X7 in its direction of travel can obstruct the second protrusion Y2, thereby preventing the first gear 4122, which is an incomplete gear, from disengaging from the second toothed assembly 422.

[0082] Please refer to Figure 6 In one optional implementation, the first linkage assembly 411 includes a first swing arm 4111 and a first connecting rod 4112. The opposite ends of the first swing arm 4111 are respectively connected to the first cover plate 20 and the first connecting rod 4112, and the end of the first connecting rod 4112 away from the first swing arm 4111 is connected to the first toothed assembly 412. The first swing arm 4111 is fixedly connected to the first cover plate 20, meaning that the first swing arm 4111 and the first cover plate 20 rotate synchronously. The first connecting rod 4112 is rotatably connected to the first swing arm 4111, and also rotatably connected to the first rocker arm 4121. Optionally, the opposite ends of the first connecting rod 4112 are detachably connected to the first swing arm 4111 and the first rocker arm 4121. It is understood that through the first swing arm 4111 and the first connecting rod 4112, the first cover plate 20 can transmit rotational motion to the first rocker arm 4121.

[0083] Please refer to Figure 6 , Figure 9 and 14As an optional implementation, 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, and the first toothed assembly 412 is rotatably connected to the first sleeve 413. Specifically, the storage box 10 includes a box body 110 and a first mounting post 120 (e.g., Figure 14 As shown), the housing 110 has the aforementioned storage space X1, and the first mounting post 120 protrudes from the housing 110. The first transmission mechanism 410 also includes a first sleeve 413 (as shown). Figure 6 and Figure 9 As shown), the first sleeve 413 is fixedly inserted into the first mounting post 120, meaning the first sleeve 413 is fixedly installed and cannot move. The first sleeve 413 includes a first sleeve body portion 4131 and a first end cap portion 4132 (as shown). Figure 9 As shown, the first body portion 4131 is a hollow cylinder and is fitted around the outer periphery of the first mounting post 120. The first end cap portion 4132 is connected to one end of the first body portion 4131. The first rocker arm 4121 and the first gear 4122 are rotatably fitted around the outer periphery of the first body portion 4131. The first end cap portion 4132 is located on the side of the first rocker arm 4121 away from the first gear 4122. This arrangement can prevent the first rocker arm 4121 and the first gear 4122 from detaching from the storage box 10.

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

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

[0086] The above is an introduction to the first transmission mechanism 410. The second transmission mechanism 420 will now be described in detail with reference to the accompanying drawings. The second transmission mechanism 420 can adopt the same structure as the first transmission mechanism 410. For details regarding the second transmission mechanism 420, please refer to the preceding introduction of the first transmission mechanism 410.

[0087] Please refer to Figure 6 As an optional implementation, the second toothed assembly 422 further includes a second rocker arm 4221 and a second gear 4222. Both the second rocker arm 4221 and the second gear 4222 are rotatable relative to the storage box 10, and the second rocker arm 4221 is rotatably connected to the second connecting rod assembly 421, while the second gear 4222 meshes with the first gear 4122. The second gear 4222 can be an incomplete gear, meaning it has teeth only on a portion of its 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 meshed with the first toothed assembly 412, if the first transmission mechanism 410 is immobile, the second gear 4222 will also be immobile. In the immobile state of the second gear 4222, the second rocker arm 4221 can rotate independently; that is, if the second rocker arm 4221 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 meshed with the first toothed assembly 412, if the first transmission mechanism 410 can move, it means that the second gear 4222 can also rotate. In the state where the second gear 4222 can move, the second rocker arm 4221 and the second gear 4222 rotate synchronously. That is, if the second rocker arm 4221 is driven by the second connecting rod assembly 421 at this time, the second rocker arm 4221 will drive the second gear 4222 to rotate synchronously.

[0090] Understandably, the aforementioned function enables the armrest box 3 to achieve the "single-closing of the second cover 30" function. That is, when both the first cover 20 and the second cover 30 are in the open position, only the second cover 30 can be closed by the intervention of an external force (the "external force" refers to a force outside the armrest box 3). Therefore, the linkage mechanism 40 provided in this application not only enables the first cover 20 and the second cover 30 of the armrest box 3 to open and close synchronously, but also enables the second cover 30 to be closed by one person. Furthermore, from another perspective, achieving the "single-closing of the second cover 30" function can prevent damage to the linkage mechanism 40.

[0091] Exemplary Description: When both the first cover plate 20 and the second cover plate 30 are in the open position, if the user uses their left hand to fix the first cover plate 20 in its current position, the first transmission mechanism 410 is fixed by the first cover plate 20 and cannot move, thus preventing the second gear 4222 from rotating. At this time, if the user uses their right hand to press the second cover plate 30, the second cover plate 30 will drive the second linkage assembly 421 to move. The second linkage assembly 421 will then drive the second rocker arm 4221 to rotate relative to the second gear 4222, thereby closing the second cover plate 30. Ultimately, 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 implementation, 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 gear assembly 422, and the second spherical grooves X5 are arranged opposite to the second placement space X4. The number of second spherical grooves X5 can be 2, 3, 4, 5, 6, etc.

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

[0095] It should be noted that the following content of this application is based on the second embodiment (the second placement space X4 is disposed on the second gear 4222, and the second spherical groove X5 is disposed on the second rocker arm 4221).

[0096] The second toothed assembly 422 further includes a second spherical member 4223 and a second elastic member (not shown, but can be compared with the description of the first elastic member 4124 above). The second elastic member can be a spring, rubber, or other elastic material. The second elastic member is disposed within 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. That is, the second elastic member has a certain amount of compression. With this arrangement, the second elastic member applies an elastic abutment to the second spherical member 4223, thereby ensuring that a portion of the second spherical member 4223 is located in the second spherical groove X5 (the second spherical groove X5 can only accommodate a portion of the second spherical member 4223), and the other portion 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 that fits the outer contour shape of the second spherical part 4223.

[0097] When the first transmission mechanism 410 is not fixed and can move, the second spherical member 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 member 4223.

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

[0099] Taking the example of "the second placement space X4 is located on the second gear 4222, and the second spherical groove X5 is located on the second rocker arm 4221": it can be understood that if the second linkage assembly 421 drives the second rocker arm 4221, the second rocker arm 4221 will apply a second tilting force to the second spherical member 4223. This second tilting force can be decomposed into two component forces: a third component force and a fourth component force. Among them, the direction of the third component force is the direction of the second spherical member 4223 toward the second elastic member, that is, the elastic abutment force of the second elastic member on the second spherical member 4223 (hereinafter referred to as the second elastic abutment force) is opposite to the third component force; the fourth component force is perpendicular to the third component force and tangential to the rotation direction of the second rocker arm 4221. This fourth component force will be transmitted to the second gear 4222 and generate torque on the second gear 4222. When the first transmission mechanism 410 is not fixed and can move, the second gear 4222 can rotate. In this case, since the fourth component force generates torque on the second gear 4222, the second gear 4222 will rotate synchronously with the second rocker arm 4221 under the drive of the torque. That is to say, the second spherical member 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 member 4223. In this way, the first cover plate 20 and the second cover plate 30 can be opened and closed synchronously. When the first transmission mechanism 410 is fixed and cannot move (for example, the user uses their left hand to fix the first cover plate 20 in the current position), the second gear 4222 cannot rotate. In this case, if the third component force is greater than the second elastic abutment force (for example, the user uses their right hand to gradually increase the pressing force on the second cover plate 30), the second elastic element is compressed, and the second spherical element 4223 follows the second elastic element into the second placement space X4 and gradually exits the current second spherical groove X5, thereby allowing the second rocker arm 4221 to rotate relative to the second gear 4222. After the second rocker arm 4221 rotates to a certain extent, the second spherical element 4223 is pushed into another second spherical groove X5 by the second elastic element. If the second rocker arm 4221 continues to rotate, the above process is repeated, and the second spherical element 4223 enters different second spherical grooves X5 in sequence. In this way, the "single-close function of the second cover plate 30" can be realized.

[0100] Please refer to Figure 8As an optional implementation, two adjacent second spherical grooves X5 are spaced apart, and a second channel X9 is provided between two adjacent second spherical grooves X5, the second channel X9 connecting the second spherical grooves X5. It is understood that the second channel X9 can guide the second spherical member 4223 so that the second spherical member 4223 rolls around the rotation center axis of the second toothed assembly 422, thereby smoothly rolling from one second spherical groove X5 to another adjacent second spherical groove X5.

[0101] As an optional implementation, either the second rocker arm 4221 or the second gear 4222 is provided with a third protrusion, and the other is provided with a third limiting groove. The third protrusion is a raised 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 rotational center axis surrounding the second gear 4222 assembly; that is, the third limiting groove has an arc-shaped orientation, and its center is located at the rotational center axis of the second gear 4222 assembly. The third protrusion is inserted into the third limiting groove.

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

[0103] In the second embodiment, the third protrusion is provided on the side of the second rocker arm 4221 facing the second gear 4222, and the third limiting groove is provided 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 protrusion slides within the third limiting groove. It is understood that the third limiting groove guides the third protrusion, and the cooperation between the third limiting groove and the third protrusion ensures a high degree of coaxiality between the second rocker arm 4221 and the second gear 4222. Furthermore, both ends of the third limiting groove in its direction of travel can obstruct the third protrusion, thereby preventing the second spherical component 4223 from disengaging from the first or last of the multiple second spherical grooves X5.

[0105] As an optional implementation, either the second gear 4222 or the storage box 10 is provided with a fourth protrusion, and the other is provided with a fourth limiting groove. The fourth protrusion is a raised 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 rotational center axis surrounding the second gear 4222 assembly; that is, the fourth limiting groove has an arc-shaped orientation, and its center is located at the rotational center axis of the second gear 4222 assembly. The fourth protrusion is inserted into the fourth limiting groove.

[0106] In the first embodiment, the fourth protrusion is located on the side of the second gear 4222 facing the storage box 10 (i.e., the fourth protrusion is located on the side of the second gear 4222 away from the second rocker arm 4221, such as...). Figure 8 As shown in the figure, the fourth limiting groove is located on the side of the storage box 10 facing the second gear 4222.

[0107] In the second embodiment, the fourth protrusion is located on the side of the storage box 10 facing the second gear 4222, and the fourth limiting groove is located on the side of the second gear 4222 facing the storage box 10 (that is, the fourth limiting groove is located on the side of the second gear 4222 away from the second rocker arm 4221).

[0108] During the rotation of the second gear 4222 relative to the storage box 10, the fourth protrusion slides along the fourth limiting groove. It is understood that the fourth limiting groove guides the fourth protrusion, and the cooperation between the fourth limiting groove and the fourth protrusion ensures a high degree of coaxiality between the storage box 10 and the second gear 4222. Furthermore, both ends of the fourth limiting groove in its direction can obstruct the fourth protrusion, thus preventing the second gear 4222, which is an incomplete gear, from disengaging from the first gear 4122.

[0109] Please refer to Figure 6 In one optional implementation, the second linkage assembly 421 includes a second swing arm 4211 and a second link 4212. The opposite ends of the second swing arm 4211 are respectively connected to the second cover plate 30 and the second link 4212, and the end of the second link 4212 away from the second swing arm 4211 is connected to the second toothed assembly 422. The second swing arm 4211 is fixedly connected to the second cover plate 30, meaning that the second swing arm 4211 and the second cover plate 30 rotate synchronously. The second link 4212 is rotatably connected to the second swing arm 4211, and also rotatably connected to the second rocker arm 4221. Optionally, the opposite ends of the second link 4212 are detachably connected to the second swing arm 4211 and the second rocker arm 4221, respectively. It is understood that through the second swing arm 4211 and the second link 4212, the second cover plate 30 can transmit rotational motion to the second rocker arm 4221.

[0110] Please refer to Figure 6 and Figure 14As an optional implementation, the second transmission mechanism 420 further includes a second sleeve 423, which is used to fix 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 includes a box body 110 and a second mounting post 130 (e.g., Figure 14 As shown), the housing 110 has the aforementioned storage space X1, and the second mounting post 130 protrudes from the housing 110. The second transmission mechanism 420 also includes a second sleeve 423 (as shown). Figure 6 As shown, the second sleeve 423 is fixedly inserted into the second mounting post 130, meaning the second sleeve 423 is fixed and cannot move. The second sleeve 423 includes a second sleeve body and a second end cap. The second sleeve body is a hollow cylinder and is fitted around the outer periphery of the second mounting post 130. The second end cap is connected to one end of the second sleeve body. The second rocker arm 4221 and the second gear 4222 are rotatably fitted around the outer periphery of the second sleeve body. The second end cap is located on the side of the second rocker arm 4221 away from the second gear 4222. This arrangement prevents the second rocker arm 4221 and the second gear 4222 from detaching 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.

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

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

[0114] The technical means disclosed in this application are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A linkage mechanism (40), characterized in that, Applied to the armrest box (3), the 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 a storage box (10) on the armrest box (3). 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 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 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 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 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 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 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 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 the first cover plate (20) and the second cover plate (30) being 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 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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