A multi-functional vehicle handrail assembly

Abstract

The application provides a multifunctional vehicle handrail assembly, and belongs to the technical field of vehicle parts. The multifunctional vehicle handrail assembly comprises a handrail frame and a multifunctional box slidably installed on the handrail frame. The multifunctional box comprises a first box body part, a second box body part and a third box body part arranged in sequence along a sliding direction. Each box body part is provided with at least one function unit. The stroke positions of the multifunctional box include a storage position, a first extension position, a second extension position and a third extension position. By changing the stroke positions, the first, second and third box body parts are respectively extended from or accommodated in the handrail frame. The multifunctional vehicle handrail assembly has the beneficial effects that: through the multi-stage telescopic stroke design, the handrail assembly can display corresponding function modules according to different scene requirements, which not only improves the utilization rate of the in-vehicle space, but also enhances the functional diversity of the handrail box and the convenience of the passenger operation.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology and relates to a multifunctional vehicle armrest assembly. Background Technology

[0002] Vehicle armrest assemblies are typically installed between seats or in the center of a car's cabin to provide arm support for occupants and alleviate driver fatigue. They also serve as a support structure for storage and control interfaces within the cabin. Generally, a vehicle armrest assembly includes an armrest frame fixedly connected to the vehicle body and an armrest housing that can be moved relative to the armrest frame. The armrest housing can house functional modules such as cup holders, tables, and car refrigerators, and can also include control buttons or operating interfaces corresponding to these modules.

[0003] As users demand greater convenience and versatility in their cabins, armrest storage units have evolved from simple storage structures to multifunctional integrated units. While this integrated design increases the functional density of the cabin, the limited internal volume of the armrest storage unit, coupled with the space required for each functional module to move around when open or in operation, can easily lead to spatial interference when multiple modules are linked or arranged in the same space, thus affecting ease of use and user experience.

[0004] Existing armrest boxes typically only support a single-stroke opening and closing mechanism in terms of structure and control logic, meaning the armrest box can only switch between fully open and fully closed states. However, functional modules such as cup holders, tabletops, and car refrigerators have different usage frequencies and operational requirements. For example, cup holders usually require quick access, tabletops need stable support space, and refrigerators require relatively better sealing and privacy.

[0005] Therefore, when a user only needs to call a specific function module (such as just taking out a water cup), it is often still necessary to drive the armrest box to perform the overall opening action, which leads to the exposure or movement interference of other unnecessary function modules, resulting in redundant dynamic operations, wasted space, and potential inconvenience in interaction. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned problems in the prior art by proposing a multifunctional vehicle handrail assembly.

[0007] The objective of this invention can be achieved through the following technical solution: a multi-functional vehicle armrest assembly, comprising: Handrail; A multi-functional box is slidably mounted on the handrail frame. The multi-functional box includes a first box body, a second box body, and a third box body arranged sequentially along its sliding direction. The travel positions of the multi-functional box include a storage position, a first-level extension position, a second-level extension position, and a third-level extension position. The first box section, the second box section, and the third box section are each provided with at least one functional unit; When the multi-functional box is in the storage position, the first box part, the second box part, and the third box part are all housed inside the armrest frame; When the multi-functional box is in the first extended position, the first box body extends out of the handrail frame, and the second box body and the third box body are housed in the handrail frame; When the multi-functional box is in the second extended position, both the first box part and the second box part extend out of the handrail frame, and the third box part is housed inside the handrail frame; When the multi-functional box is in the third extended position, the first box part, the second box part, and the third box part all extend out of the handrail frame.

[0008] Preferably, the functions or types of the functional units in the first box section, the second box section, and the third box section are different from each other, and the functional units are configured as one of a cup holder, a storage cavity, a lifting and folding table, or a refrigeration cavity.

[0009] Preferably, the first housing portion is provided with the cup holder, the second housing portion is provided with the storage cavity and the lifting and folding table, and the third housing portion is provided with the refrigeration cavity.

[0010] Preferably, the first housing portion is provided with a front storage box, the lower part of which is hinged to the first housing portion so that the upper part of which is openable by flipping outward relative to the first housing portion; an opening spring is provided at the hinge point between the front storage box and the first housing portion, the opening spring being configured to always apply an outward flipping force to the front storage box; a self-locking switch for locking or releasing the front storage box is provided on the first housing portion; one of the front storage box and the first housing portion is provided with a damping groove and the other with a damper, the damper engaging with the damping groove, the damper being configured to provide a damping force to slow down the rotation speed of the front storage box during flipping.

[0011] Preferably, the opening of the storage cavity is fitted with a removable storage box, which seals the opening of the storage cavity to form a closed, hidden safe inside the storage cavity.

[0012] Preferably, the second housing portion is provided with a tabletop cavity, the number of which is the same as the number of lifting and folding tables and they are arranged in a one-to-one correspondence. The tabletop cavity is arranged adjacent to the storage cavity, and the lifting and folding table is installed in the tabletop cavity in a height-adjustable manner.

[0013] Preferably, a lifting drive element is installed inside the tabletop cavity. The lifting folding table includes a lifting drive base, a movable tabletop, and a flipping drive block. The lifting drive base is connected to the lifting drive element, and the lifting drive element is configured to drive the lifting drive base to extend or retract into the tabletop cavity. The movable tabletop is hinged to the lifting drive base, one end of the flipping drive block is hinged to the lifting drive base, and a deployment spring is provided between the flipping drive block and the lifting drive base. The deployment spring is configured to always apply a spring force that causes the flipping drive block to flip outward. The movable tabletop is provided with a drive groove, and the other end of the flipping drive block is provided with a sliding shaft. The sliding shaft is slidably engaged with the drive groove, and the flipping drive block is configured to drive the movable tabletop to rotate to a horizontal position when it flips outward.

[0014] Preferably, the third box body is further provided with a refrigeration equipment installation cavity, the refrigeration cavity and the refrigeration equipment installation cavity are arranged vertically and vertically respectively, and the wall of the multi-functional box adjacent to the refrigeration equipment installation cavity is provided with heat dissipation grid holes.

[0015] Preferably, it also includes a sliding drive mechanism, which includes a motor, a lead screw, and a threaded sleeve. The motor is fixedly installed inside the handrail frame, the lead screw is rotatably installed on the handrail frame, the motor is driven by the lead screw and can drive the lead screw to rotate, the threaded sleeve is fixed to the multi-functional box, and the lead screw is threadedly connected to the threaded sleeve.

[0016] Preferably, one of the handrail and the multi-functional box is provided with a limiting slide bar and the other is provided with a limiting slide groove adapted to the limiting slide bar. The limiting slide bar and the limiting slide groove slide in a sliding engagement and form a sliding guide for the multi-functional box. One of the handrail and the multi-functional box is provided with a load-bearing pulley, and the load-bearing pulley rolls in engagement with the other of the handrail and the multi-functional box.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through a multi-stage telescopic travel design, the armrest assembly can display corresponding functional modules according to different scenario needs, which not only improves the utilization rate of the vehicle interior space, but also enhances the functional diversity of the armrest box and the convenience of passenger operation.

[0018] 2. The functional units are differentiated and ordered based on the sliding depth, following the ergonomic principle of prioritizing high-frequency functions. By arranging the cup holders, storage and office areas, and refrigeration compartments in an orderly manner from near to far, it is ensured that frequently used functions can respond quickly with the shortest possible travel distance.

[0019] 3. By using a removable storage box as a sealing cover for the lower storage compartment, the conventional storage space is transformed into a hidden safe through vertical nesting logic without changing the physical shape, thus improving the security and privacy of storing valuables.

[0020] 4. The tabletop is raised from the cavity and automatically flipped to a horizontal position by means of lifting drive components and unfolding springs. This integrated lifting and folding logic eliminates the need for traditional manual folding operations.

[0021] 5. By separating the refrigeration chamber and the refrigeration equipment installation chamber into upper and lower layers, and in conjunction with the side wall heat dissipation grilles, thermal isolation and airflow circulation are achieved within the compact space of the armrest box. This layout can effectively dissipate heat from the compressor, ensuring refrigeration efficiency and the operational stability of the refrigeration system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the multifunctional vehicle handrail assembly of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of the multifunctional box of the present invention.

[0024] Figure 3 This is a schematic diagram showing the connection relationship between the armrest box and the multi-functional box of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the multifunctional box of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the lifting and folding table of the present invention when the movable tabletop is in a vertical state.

[0027] Figure 6 This is a schematic diagram showing the connection relationship between the movable table and the lifting drive base of the present invention.

[0028] Figure 7 This is a schematic diagram of the structure of the lifting and folding table of the present invention when the movable tabletop is in a horizontal state.

[0029] Figure 8 This is a schematic diagram of the multi-functional box of the multi-functional vehicle armrest assembly of the present invention in the storage position.

[0030] Figure 9 This is a schematic diagram of the multi-functional box of the multi-functional vehicle armrest assembly of the present invention in the first-level extended position.

[0031] Figure 10 This is a schematic diagram of the multi-functional box of the multi-functional vehicle armrest assembly of the present invention in the secondary extended position.

[0032] Figure 11This is a schematic diagram of the multi-functional box of the multi-functional vehicle armrest assembly of the present invention in the third-level extended position.

[0033] In the diagram, 100 is the armrest; 110 is the limiting slide bar; 120 is the load-bearing pulley; 200 is the multi-functional box; 210 is the first box section; 211 is the cup holder; 212 is the damper; 220 is the second box section; 221 is the storage cavity; 222 is the storage box; 223 is the tabletop cavity; 224 is the lifting drive element; 230 is the third box section; 231 is the refrigeration cavity; 232 is the refrigeration equipment installation cavity; 240 is the heat dissipation grid hole; 250 is the limiting slide groove; 300 is the lifting folding table; 310 is the lifting drive base; 320 is the movable tabletop; 321 is the drive groove; 330 is the flipping drive block; 331 is the sliding shaft; 340 is the unfolding spring; 400 is the front storage box; 410 is the opening spring; 420 is the damping tooth groove; 510 is the motor; 520 is the lead screw; and 530 is the screw sleeve. Detailed Implementation

[0034] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0035] like Figures 1 to 4 , Figures 8 to 11 As shown, a multi-functional vehicle handrail assembly includes a handrail frame 100 and a multi-functional box 200. The handrail frame 100 serves as the basic load-bearing structure, forming an internal cavity of a specific depth to support and guide the reciprocating sliding motion of the multi-functional box 200. The multi-functional box 200, as the main functional component, is structurally divided into three sections along its sliding direction: a first box section 210, a second box section 220, and a third box section 230. This segmented structural layout is not a random stacking of functional units, but rather deeply coupled with the travel control logic of the multi-functional box 200. This sequential arrangement achieves the orderly superposition of functional units in physical space, providing a spatial architectural foundation for the subsequent hierarchical functional presentation.

[0036] The multi-functional box 200 has four travel positions: storage position, first-level extension position, second-level extension position, and third-level extension position; the first box section 210, the second box section 220, and the third box section 230 are each provided with at least one functional unit. When the multi-functional box 200 is in the storage position, the first box portion 210, the second box portion 220, and the third box portion 230 are all housed within the handrail frame 100; when the multi-functional box 200 is in the first extended position, the first box portion 210 extends out of the handrail frame 100, and the second box portion 220 and the third box portion 230 are housed within the handrail frame 100; when the multi-functional box 200 is in the second extended position, the first box portion 210 and the second box portion 220 extend out of the handrail frame 100, and the third box portion 230 is housed within the handrail frame 100; when the multi-functional box 200 is in the third extended position, the first box portion 210, the second box portion 220, and the third box portion 230 all extend out of the handrail frame 100.

[0037] The displacement travel of the multi-functional box 200 relative to the handrail 100 is precisely divided into four specific logical working states to adapt to different usage scenarios. When the multi-functional box 200 is completely retracted into the handrail 100 and in the storage position, the first box section 210, the second box section 220, and the third box section 230 are all concealed within the internal space of the handrail 100, at which point the overall appearance of the handrail 100 remains compact and neat. If switched to the first-level extension position according to the user's instructions, the multi-functional box 200 is driven forward a certain distance along the sliding direction. At this time, only the outermost first box section 210 extends out of the armrest 100, while the second box section 220 and the third box section 230 remain under the protection of the armrest 100. If it enters the second-level extension position, the first box section 210 and the second box section 220 are both presented in the external operable space. In the third-level extension position with the maximum travel, all parts of the multi-functional box 200, including the outermost third box section 230, are completely detached from the protection of the armrest 100. This travel displacement logic, which is triggered layer by layer from near to far, allows the multi-functional box 200 to accurately and dynamically adjust its extension range according to the passenger's immediate functional needs, thereby ensuring functional extensibility while minimizing the ineffective physical encroachment on the cabin space when partially open.

[0038] The functional units of the first housing section 210, the second housing section 220, and the third housing section 230 have different functions or types, and the functional units are configured as one of the following: cup holder 211, storage cavity 221, lifting and folding table 300, or refrigeration cavity 231. In terms of specific functional unit configuration and mechanical function distribution, the functions carried by the first housing section 210, the second housing section 220, and the third housing section 230 exhibit a high degree of differentiation and specificity.

[0039] In the actual structure, the first cabinet section 210 at the front end is equipped with a cup holder 211. This design ensures that users can quickly and smoothly use the cup placement function with the shortest stroke drive (i.e., the first-level extension position), conforming to the ergonomic quick response logic. The second cabinet section 220, as the core functional expansion area, not only integrates a storage cavity 221 for storing miscellaneous items, but also integrates a vertically unfoldable or foldable table 300. By setting the static storage and dynamic work surface adjacent to each other, it achieves comprehensive support for mobile office or catering scenarios at the second-level stroke. The third cabinet section 230, which is the deepest and relatively independent in volume, is specially configured as a refrigeration cavity 231. Utilizing the space advantage at the end of the stroke, it provides a more stable temperature control environment for the refrigeration equipment. This sorting of various functional units based on sliding depth not only reflects the logical rigor of the mechanical structure layout, but also solves the technical problems of messy functions and uneven space utilization in integrated handrails by designing different functions for each box, thus giving the entire multi-functional vehicle handrail assembly a high degree of integration and ease of use.

[0040] like Figure 1 , Figure 2 As shown, based on the above embodiment, the first housing portion 210 is provided with a front storage box 400. The lower part of the front storage box 400 is hinged to the first housing portion 210 so that the upper part of the front storage box 400 can be flipped outward relative to the first housing portion 210. An opening spring 410 is provided at the hinge point between the front storage box 400 and the first housing portion 210. The opening spring 410 is configured to always apply an outward flipping force to the front storage box 400. A self-locking switch for locking or releasing the front storage box 400 is provided on the first housing portion 210. One of the front storage box 400 and the first housing portion 210 is provided with a damping groove 420 and the other is provided with a damper 212. The damper 212 meshes with the damping groove 420. The damper 212 is configured to provide a damping force during the flipping process of the front storage box 400 to slow down its rotation speed.

[0041] The front end of the first housing section 210 cleverly integrates a front storage box 400 with a flip-open function. The installation structure of the front storage box 400 fully considers the convenience of operation and the utilization of space. In terms of physical connection, the lower part of the front storage box 400 is hinged to the first housing section 210 through a pivot. This bottom-hinged and top-released connection method allows the upper part of the front storage box 400 to flip outward relative to the first housing section 210 with the hinge axis as the center, thereby achieving a large-angle opening with a small horizontal displacement. To achieve the dynamic effect of automatic opening, an opening spring 410 is pre-installed inside the hinge. This spring is in a pre-compressed state when the storage box 222 is closed, thereby always generating an outward flipping potential energy on the front storage box 400. A self-locking switch is installed on the first housing section 210. As the core control element for locking or releasing, it overcomes the spring force of the opening spring 410 through an internal locking mechanism, keeping the front storage box 400 in a closed state. Once the self-locking switch is activated, the locking logic is released, and the front storage box 400 automatically opens under the drive of the opening spring 410. To avoid mechanical collisions during the opening process, a damping and easing mechanism is also established between the front storage box 400 and the first housing section 210. One of the front storage box 400 and the first housing section 210 is provided with an arc-shaped damping groove 420, and the other is equipped with a damper 212 that meshes with it. When the front storage box 400 is flipped, the damping medium in the damper 212 generates a constant motion resistance through gear meshing, which effectively balances the explosive force of the opening spring 410, so that the rotation speed of the front storage box 400 can be smoothly controlled. From a mechanistic perspective, it realizes a smooth and quiet action logic, and enhances the sense of structural stability during user interaction.

[0042] like Figures 1 to 3 As shown, based on the above embodiment, a detachable storage box 222 is installed at the opening of the storage cavity 221. The storage box 222 seals the opening of the storage cavity 221 so that the inside of the storage cavity 221 forms a closed hidden safe.

[0043] Regarding the internal space of the second cabinet section 220, privacy and functionality are achieved by reconstructing the vertical storage logic. A storage cavity 221 is located deep inside the second cabinet section 220, and a detachable storage box 222 is movably installed at the opening of this cavity 221. From a structural coupling perspective, this detachable storage box 222 not only provides conventional storage for small items but also acts as a physical sealing cover for the lower storage cavity 221. When the detachable storage box 222 is installed, its bottom edge and side walls tightly seal the opening of the storage cavity 221, transforming the originally open cavity 221 into a completely enclosed and visually concealed hidden safe. This design utilizes layered spatial management to achieve functional hierarchy. Users can use the upper detachable storage box 222 for daily use, and when valuables need to be stored, simply remove it to access the lower hidden safe.

[0044] Based on the above embodiment, the second box part 220 is provided with a table cavity 223. The number of table cavities 223 is the same as that of the lifting and folding table 300 and they are arranged in a one-to-one correspondence. The table cavity 223 is arranged adjacent to the storage cavity 221. The lifting and folding table 300 is installed in the table cavity 223 in a height-adjustable manner.

[0045] In the functional layout of the second housing section 220, in addition to the aforementioned storage space, a cavity specifically designed to accommodate the lift-up folding table 300 is also planned. Specifically, the second housing section 220 is also provided with a tabletop cavity 223, and the number of tabletop cavities 223 is the same as the number of lift-up folding tables 300, and they are arranged one-to-one to ensure that each set of lift-up folding tables 300 has independent storage space. In the actual structure, the second housing section 220 is provided with two sets of lift-up folding tables 300, and the two sets of lift-up folding tables 300 (tabletop cavities 223) are located on both sides of the storage cavity 221. This parallel structure ensures the compactness of the overall structure of the second housing section 220, and the two sets of lift-up folding tables 300 can be folded flat to the sides without interfering with their respective mechanical movement paths.

[0046] like Figures 1 to 11As shown, based on the above embodiment, a lifting drive element 224 is installed inside the table cavity 223. The lifting folding table 300 includes a lifting drive base 310, a movable table 320, and a flipping drive block 330. The lifting drive base 310 is connected to the lifting drive element 224. The lifting drive element 224 is preferably a linear drive element, and the lifting drive element 224 is configured to drive the lifting drive base 310 to extend or retract into the table cavity 223. The movable table 320 is hinged to the lifting drive base 310 and flips. One end of the drive block 330 is hinged to the lifting drive base 310, and a unfolding spring 340 is provided between the flip drive block 330 and the lifting drive base 310. The unfolding spring 340 is configured to always apply a spring force that causes the flip drive block 330 to flip outward. The movable table 320 is provided with a drive groove 321, and the other end of the flip drive block 330 is provided with a sliding shaft 331. The sliding shaft 331 is slidably engaged with the drive groove 321. The flip drive block 330 is configured to drive the movable table 320 to rotate to a horizontal state when it flips outward.

[0047] In actual use, the lifting drive element 224 drives the lifting drive base 310 to rise and break free from the wall constraint of the tabletop cavity 223. The potential energy of the unfolding spring 340 is then released instantaneously, causing the flipping drive block 330 to flip outwards around the hinge point. During this process, the sliding shaft 331 slides controlled within the drive groove 321, generating an outward component force that forcibly pulls the movable tabletop 320 from its initial vertical folded state to a horizontal position around its axis. When the flipping drive block 330 flips to its maximum preset angle and the sliding shaft 331 contacts the extreme position of the drive groove 321, the movable tabletop 320 is in a horizontal state, and the flipping drive block 330 and the movable tabletop 320 form a stable triangular mechanical support structure. This mechanism design, based on the automatic unfolding of the movable tabletop 320 driven by elasticity and guided by displacement constraints, not only ensures the integrated automatic completion of the tabletop unfolding process but also ensures the structural rigidity in a horizontal state, preventing settlement during use.

[0048] When the lifting drive element 224 drives the lifting drive base 310 to descend, the flipping drive block 330 is pushed by the wall of the table cavity 223, thereby overcoming the elastic force of the unfolding spring 340. The sliding shaft 331 slides in the opposite direction in the drive groove 321, thereby forcibly pulling the movable table 320 to rotate to the vertical folding state.

[0049] like Figures 1 to 3 As shown, based on the above embodiment, the third box part 230 is also provided with a refrigeration equipment installation cavity 232, the refrigeration cavity 231 is arranged vertically corresponding to the refrigeration equipment installation cavity 232, and the multi-functional box 200 has a heat dissipation grid hole 240 on the wall adjacent to the refrigeration equipment installation cavity 232.

[0050] The interior of the third compartment 230 is divided by a horizontal partition into an upper and lower corresponding refrigeration chamber 231 and a refrigeration equipment installation chamber 232. The refrigeration equipment installation chamber 232 is used to house core hardware such as compressors, cooling fans, and condenser components. To solve the technical problem of heat accumulation during refrigeration, the multi-functional box 200 has heat dissipation grid holes 240 on the side wall surface adjacent to the refrigeration equipment installation chamber 232. When the refrigeration equipment generates heat during operation, the heat dissipation grid holes 240 form a physical channel for the exchange of cold and hot air. This upper and lower layered, side-dissipation structure effectively thermodynamically isolates the low-temperature environment inside the refrigeration chamber 231 from the high-temperature environment of the refrigeration installation chamber, and uses convection to remove waste heat generated by electrical power consumption in a timely manner. Thus, while maintaining the constant low-temperature performance of the refrigeration chamber 231, it ensures the long-term operational stability of the entire refrigeration equipment in the enclosed or semi-enclosed frame 100 structure.

[0051] like Figure 1 , Figure 3 As shown, based on the above embodiment, a sliding drive mechanism is also included. The sliding drive mechanism includes a motor 510, a lead screw 520, and a threaded sleeve 530. The motor 510 is fixedly installed inside the handrail frame 100, and the lead screw 520 is rotatably installed on the handrail frame 100. The motor 510 is connected to the lead screw 520 and can drive the lead screw 520 to rotate. The threaded sleeve 530 is fixed to the multi-functional box 200, and the lead screw 520 and the threaded sleeve 530 are threadedly connected.

[0052] The core of the sliding drive mechanism lies in the helical transmission assembly consisting of a motor 510, a lead screw 520, and a screw sleeve 530. When the motor 510 receives a control command and rotates, it drives the lead screw 520 to rotate in its original position. Through the displacement conversion logic of the threaded pair, the rotational torque is converted into a thrust along the axial direction of the lead screw 520, thereby driving the multi-functional box 200 to reciprocate and slide smoothly and linearly between the retracted position and each extended position. This threaded transmission logic not only provides sufficient driving force but also has a natural self-locking characteristic, ensuring that the multi-functional box 200 maintains static stability at any stroke point.

[0053] like Figure 4 , Figure 11 As shown, based on the above embodiment, one of the handrail 100 and the multi-functional box 200 is provided with a limiting slide bar 110 and the other is provided with a limiting slide groove 250 adapted to the limiting slide bar 110. The limiting slide bar 110 and the limiting slide groove 250 slide in cooperation and form a sliding guide for the multi-functional box 200. One of the handrail 100 and the multi-functional box 200 is provided with a load-bearing pulley 120, and the load-bearing pulley 120 rolls in cooperation with the other of the handrail 100 and the multi-functional box 200.

[0054] The limiting slide bar 110 forms a tight sliding fit within the limiting slide groove 250, eliminating radial swaying of the multi-functional box 200 during sliding through a physical barrier, thus constituting a sliding guide structure and ensuring that the multi-functional box 200 can accurately move along the predetermined sliding direction. Secondly, a load-bearing pulley 120 is correspondingly configured between the bottom of the handrail frame 100 and the bottom of the multi-functional box 200. This load-bearing pulley 120 directly transmits and distributes the vertical gravity load of the multi-functional box 200 to the frame structure of the handrail frame 100 through a rolling engagement. This greatly reduces sliding resistance and mechanical wear, making the sliding of the multi-functional box 200 smoother.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0056] Furthermore, in this invention, descriptions involving "first," "second," "a," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements, unless otherwise explicitly limited.

[0058] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A multi-functional vehicle armrest assembly, characterized in that, include: Handrail (100); A multi-functional box (200) is slidably mounted on the handrail (100). The multi-functional box (200) includes a first box body (210), a second box body (220), and a third box body (230) arranged sequentially along its sliding direction. The travel positions of the multi-functional box (200) include a storage position, a first-level extension position, a second-level extension position, and a third-level extension position. The first housing section (210), the second housing section (220), and the third housing section (230) are each provided with at least one functional unit; When the multi-functional box (200) is in the storage position, the first box body (210), the second box body (220) and the third box body (230) are all housed in the armrest frame (100); When the multi-functional box (200) is in the first extended position, the first box body (210) extends out of the handrail (100), and the second box body (220) and the third box body (230) are housed in the handrail (100); When the multi-functional box (200) is in the second extended position, the first box part (210) and the second box part (220) both extend out of the handrail frame (100), and the third box part (230) is housed in the handrail frame (100); When the multi-functional box (200) is in the three-stage extended position, the first box part (210), the second box part (220) and the third box part (230) all extend out of the handrail frame (100).

2. The multi-functional vehicle armrest assembly as described in claim 1, characterized in that: The first box section (210), the second box section (220) and the third box section (230) have different functions or types of functional units, and the functional units are configured as one of cup holder (211), storage cavity (221), lifting and folding table (300) or refrigeration cavity (231).

3. A multi-functional vehicle armrest assembly as described in claim 2, characterized in that: The first box section (210) is provided with the cup holder (211), the second box section (220) is provided with the storage cavity (221) and the lifting and folding table (300), and the third box section (230) is provided with the refrigeration cavity (231).

4. A multi-functional vehicle armrest assembly as described in claim 3, characterized in that: The first housing portion (210) is provided with a front storage box (400). The lower part of the front storage box (400) is hinged to the first housing portion (210) so that the upper part of the front storage box (400) can be flipped open relative to the first housing portion (210). An opening spring (410) is provided at the hinge point between the front storage box (400) and the first housing portion (210). The opening spring (410) is configured to always apply an outward flipping opening force to the front storage box (400). The elasticity; a self-locking switch for locking or releasing the front storage box (400) is provided on the first housing part (210); one of the front storage box (400) and the first housing part (210) is provided with a damping groove (420) and the other is provided with a damper (212), the damper (212) meshes with the damping groove (420), and the damper (212) is configured to provide damping force to slow down the rotation speed of the front storage box (400) during the flipping process.

5. A multi-functional vehicle armrest assembly as described in claim 3, characterized in that: The opening of the storage cavity (221) is fitted with a removable storage box (222), which seals the opening of the storage cavity (221) to form a closed, hidden safe inside the storage cavity (221).

6. A multi-functional vehicle armrest assembly as described in claim 3, characterized in that: The second housing part (220) is provided with a table cavity (223). The number of table cavities (223) is the same as that of the lifting and folding table (300) and they are arranged in a one-to-one correspondence. The table cavity (223) is arranged adjacent to the storage cavity (221). The lifting and folding table (300) is installed in the table cavity (223) in a lifting manner.

7. A multi-functional vehicle armrest assembly as described in claim 6, characterized in that: A lifting drive element (224) is installed inside the table cavity (223). The lifting folding table (300) includes a lifting drive base (310), a movable table (320), and a flipping drive block (330). The lifting drive base (310) is connected to the lifting drive element (224), and the lifting drive element (224) is configured to drive the lifting drive base (310) to extend or retract from the table cavity (223). The movable table (320) is hinged to the lifting drive base (310), and one end of the flipping drive block (330) is connected to the lifting drive base (310). 310) Hinged, and a deployment spring (340) is provided between the flipping drive block (330) and the lifting drive base (310), the deployment spring (340) is configured to always apply a spring force to cause the flipping drive block (330) to flip outward; the movable table (320) is provided with a drive groove (321), and the other end of the flipping drive block (330) is provided with a sliding shaft (331), the sliding shaft (331) is slidably engaged with the drive groove (321), and the flipping drive block (330) is configured to drive the movable table (320) to rotate to a horizontal state when it flips outward.

8. A multi-functional vehicle armrest assembly as described in claim 3, characterized in that: The third box section (230) is also provided with a refrigeration equipment installation cavity (232). The refrigeration cavity (231) and the refrigeration equipment installation cavity (232) are arranged vertically and vertically respectively. The multi-functional box (200) has heat dissipation grid holes (240) on the wall adjacent to the refrigeration equipment installation cavity (232).

9. A multi-functional vehicle armrest assembly as described in claim 1, characterized in that: It also includes a sliding drive mechanism, which includes a motor (510), a lead screw (520), and a threaded sleeve (530). The motor (510) is fixedly installed inside the handrail frame (100), and the lead screw (520) is rotatably installed on the handrail frame (100). The motor (510) is connected to the lead screw (520) and can drive the lead screw (520) to rotate. The threaded sleeve (530) is fixed to the multi-functional box (200), and the lead screw (520) is threadedly connected to the threaded sleeve (530).

10. A multi-functional vehicle armrest assembly as described in claim 1, characterized in that: One of the handrail (100) and the multi-functional box (200) is provided with a limiting slide bar (110) and the other is provided with a limiting slide groove (250) adapted to the limiting slide bar (110). The limiting slide bar (110) and the limiting slide groove (250) slide in cooperation and form a sliding guide for the multi-functional box (200). One of the handrail (100) and the multi-functional box (200) is provided with a load-bearing pulley (120). The load-bearing pulley (120) rolls in cooperation with the other of the handrail (100) and the multi-functional box (200).

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