Vehicle table assembly

Abstract

The utility model relates to a vehicle-mounted table board assembly, including table board, locking mechanism and mobile guide mechanism. The locking mechanism contains at least two groups of lock unit and linkage unlocking assembly arranged in turn, realizes two -level control of " extension use " and " complete dismounting " through the differentiation stopper length and the damping feedback, mobile guide mechanism adopts guide cylinder, guide rod, sliding pad and gyro wheel and promotes the smoothness of drawing and pulling, still realizes automatic locking through torsional spring, and into push part, simplifies the operation, enhances stability and durability, adapts to the vehicle-mounted scene demand.

Description

Technical Field

[0001] This utility model relates to the field of automotive table technology, specifically to in-vehicle table assembly. Background Technology

[0002] The function of a vehicle-mounted table assembly is to provide a stable support surface for temporary work, dining, or placing items for drivers and passengers, directly affecting the utilization of interior space and the comfort of the driving experience. To meet the usage needs in vehicle scenarios, Chinese utility model patent CN214775526U discloses a limiting table assembly. This device includes a table, a first limiting mechanism (table legs), a second limiting mechanism (flip-up plate), a pull-out mechanism, and a locking mechanism. The table is connected to a fixed component (such as a lower berth) via the pull-out mechanism. The first limiting mechanism can flip and support the floor, and the second limiting mechanism can flip and overlap with adjacent components (such as the dashboard). The locking mechanism is used to lock the table in its folded state. Pulling the pull ring unlocks the locking mechanism, pulls the table to the extended position, unfolds the table legs (locked by the supporting limiting components) to support the floor, and unfolds the flip-up plate (disengaging from the magnetic component) to overlap with adjacent components. When storing, the table legs are retracted (locked into the limiting seat) and the flip-up plate (magnetically locked), and pushing the table back automatically locks it.

[0003] However, in practical use, this existing technology still has the following problems: First, when the tabletop of the existing technology is extended and positioned, the table legs and the flip panel (including magnets, metal sheets, etc.) need to be fully unfolded to a designated state in order to maintain the tabletop in a usable state. The number of parts required to achieve this state is large and the structure is complex. Furthermore, when storing, the support and limiting components of the table legs need to be unlocked separately, the table legs need to be inserted into the limiting seats, and then the flip panel needs to be magnetically locked. Whether it is "folding for storage" or "extending for use", the operation is extremely cumbersome, and the user experience of the tabletop is poor in actual use.

[0004] Secondly, the existing technology makes tabletop disassembly difficult. Tools are required to unscrew the bolts connecting the slide rail bracket and the fixed components, which is a destructive disassembly. Repeated disassembly can easily cause thread wear, leading to loosening during subsequent installation. It cannot achieve quick and non-destructive disassembly and is not suitable for scenarios where the tabletop needs to be temporarily removed for outdoor activities (such as picnics) or for cleaning and maintenance. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a vehicle-mounted table assembly that is easy to operate and can be quickly and non-destructively disassembled.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vehicle-mounted table assembly, comprising a table, a locking mechanism for controlling the locking and unlocking of the table, and a moving guide mechanism for guiding the table when it moves. The locking mechanism includes at least two sets of locking units and an unlocking component that is linked to the at least two sets of locking units. The at least two sets of locking units are installed on the table and arranged sequentially along the moving direction of the table. When the unlocking component drives one set of locking units to separate from the lock seat on the vehicle body, the table can then be pulled along the moving guide mechanism until an adjacent set of locking units engages with the lock seat on the vehicle body.

[0007] By setting at least two sets of locking units arranged sequentially along the tabletop's movement direction and configuring an unlocking component that can simultaneously drive them, a clever solution is achieved to switch between the tabletop's "extended use" and "complete disassembly" modes in a single operation. Specifically, when the tabletop needs to be extended for use, simply operate the unlocking component to disengage the currently locked locking unit from the vehicle body's locking seat. While maintaining the connection between the tabletop and the vehicle body, continue pulling the tabletop, and the next adjacent locking unit will automatically engage with the vehicle body's locking seat, thus stabilizing the tabletop in the extended working position. The entire process eliminates the need to separately unfold and lock multiple independent support components as in existing technologies, greatly simplifying the operation and improving the user experience. When the tabletop needs to be completely removed, based on the above operation, simply continue pulling while maintaining the drive state of the unlocking component to disengage all locking units sequentially from the locking seat, ultimately allowing the entire tabletop assembly to slide out of the vehicle body. This achieves tool-free, non-destructive, and rapid disassembly, facilitating outdoor expansion use or cleaning and maintenance. As a preferred embodiment, the locking unit can be designed as a rotatable hook structure with a stop for engaging with the vehicle body lock seat. The unlocking component is simultaneously connected to specific parts of each hook via a pull cable or linkage mechanism. When the user pulls the unlocking handle, the linkage mechanism drives all hooks to rotate synchronously, causing their stops to disengage from the lock seat, thus creating conditions for the table to move. Alternatively, the vehicle body lock seat can be configured as a series of protrusions or grooves fixed beside the vehicle body slide rail, corresponding one-to-one with the hooks arranged sequentially on the table. When the table slides, the hooks tend to automatically reset under the action of torsion springs, thus automatically springing into the corresponding lock seat to lock when the table is in position.

[0008] Furthermore, at least two sets of the locking units include a first locking member and a second locking member arranged sequentially along the moving direction of the tabletop; the first locking member includes a first locking body fixed to the tabletop and a first locking hook rotatably mounted on the first locking body, one end of the first locking hook being linked with the unlocking component, and the other end of the first locking hook being provided with a first stop portion; the second locking member includes a second locking body fixed to the tabletop and a second locking hook rotatably mounted on the second locking body, one end of the second locking hook being linked with the unlocking component, and the other end of the second locking hook being provided with a second stop portion; the length of the second stop portion is greater than the length of the first stop portion.

[0009] The rotating installation of the first and second locking hooks provides flexible and reliable locking and disengagement. A key design feature is the greater length of the second stop compared to the first stop, creating a differentiated locking threshold. In actual operation, when the user operates the unlocking component and pulls the table, the longer second stop results in greater initial interference when contacting the vehicle body lock seat, or requires a larger rotation angle to fully disengage. Therefore, when the table is pulled to the extended position with normal force, the second hook reliably engages with the lock seat, locking the table. However, when the user intends to completely disassemble the table, greater pulling force or a larger amplitude operation of the unlocking component is required to overcome the greater interference between the second stop and the lock seat, allowing it to disengage completely and slide out. This design provides an intuitive, two-level control logic based on the force / amplitude of operation. Users can distinguish between "extending for use" and "complete disassembly" intentions by feel, effectively preventing accidental disassembly due to misoperation, while ensuring locking stability in the commonly used extended position. As a preferred embodiment, the linkage between the unlocking component and the locking hook can be achieved by setting a pull cable between the locking hook and the unlocking component. One end of the pull cable is connected to the end of the locking hook that is linked to the unlocking component. When the unlocking handle is pulled, the pull cable pulls the locking hook to rotate around its axis, thereby lifting the stop at the other end and disengaging it from the vehicle body lock seat. To achieve the effect that the second stop requires greater operating force to disengage, the pull cable stroke for pulling the second locking hook can be designed to be longer, or the mounting fulcrum position on the second lock body can be designed to make the lever arm shorter, thus requiring greater pulling force to drive it to rotate to the same unlocking angle.

[0010] Furthermore, the other end of the first locking hook is also provided with a first push portion distributed on one side of the first stop portion, and a first locking groove is formed between the first stop portion and the first push portion, which can be separated from or engaged with the lock seat on the vehicle body; the other end of the second locking hook is also provided with a second push portion distributed on one side of the second stop portion, and a second locking groove is formed between the second stop portion and the second push portion, which can be separated from or engaged with the lock seat on the vehicle body.

[0011] The lock groove provides a clear guide and housing space for the lock seat (such as a cylindrical lock pin) on the vehicle body. When the table is pushed back, the lock seat first contacts the inclined surface of the push-in part, which decomposes the force. A portion of the force pushes the lock hook to rotate slightly, causing the lock seat to slide into the lock groove. Subsequently, the lock hook rotates under the action of the reset mechanism (such as a torsion spring), causing the stop to lock behind the lock seat, completing the automatic locking. This process achieves the "push-to-lock" function, eliminating the need for additional locking operations by the user and greatly simplifying the storage process. At the same time, the guiding effect of the push-in part reduces the hard collision between the lock seat and the lock hook, reducing noise and wear, and improving the durability of the components. The structure of the lock groove also makes the locked state more stable, preventing the table from loosening or making abnormal noises due to vibration during vehicle operation.

[0012] Furthermore, the unlocking assembly includes an unlocking seat fixed to the tabletop and a pull plate mounted on the unlocking seat; a first rotating shaft is mounted on the unlocking seat, and a rotating sleeve sleeved on the side of the pull plate is provided on the first rotating shaft. A first torsion spring is sleeved on the first rotating shaft, one torsion arm of the first torsion spring presses against the pull plate, and the other torsion arm of the first torsion spring presses against the unlocking seat; the pull plate is linked to a main pull cable, and an adapter is connected to the end of the main pull cable away from the pull plate. The adapter is connected to a first branch pull cable and a second branch pull cable. The end of the first branch pull cable away from the adapter is linked to a first locking hook, and the end of the second branch pull cable away from the adapter is linked to a second locking hook.

[0013] The pull plate provides users with a direct and comfortable operating interface. It is rotatably mounted on the unlocking seat via a first pivot, and a first torsion spring ensures that the pull plate automatically returns to its initial position when no external force is applied, preparing it for the next operation. The core linkage mechanism uses a combination of a main pull cable, an adapter, and branch pull cables—a simple yet effective method of long-range force transmission. When the user pulls the pull plate outward, the main pull cable is pulled, and the adapter distributes the pulling force evenly or as needed to the first and second branch pull cables, thus synchronously pulling the first and second locking hooks to rotate, achieving simultaneous unlocking. This "single-point control, multi-point linkage" mechanical design ensures the synchronicity and consistency of operation, eliminating jamming problems caused by asynchronous unlocking of multiple locking points. The entire transmission path is concealed inside or beneath the table, resulting in a clean appearance, and the flexible cable arrangement can adapt to complex installation spaces within the vehicle. The use of the adapter facilitates the connection and adjustment of the pull cables, benefiting production and assembly.

[0014] Furthermore, the pull plate has a pull seat in the middle that is linked to one end of the main pull cable. The pull seat has a positioning frame fixed to the unlocking seat on the side away from the main pull cable. The two ends of the positioning frame have a first sliding hole and a second sliding hole that are coaxial. A pressing rod is installed on the positioning frame and can be slidably inserted into the first sliding hole and the second sliding hole in sequence. A return spring is sleeved on the outer periphery of the pressing rod. One end of the return spring presses against the positioning frame. A limiting flange ring is provided on the outer periphery of the pressing rod and presses against the other end of the return spring. A stop washer is connected to the end of the pressing rod away from the pull seat. The outer diameter of the stop washer is larger than the inner diameter of the first sliding hole.

[0015] The damping mechanism adds crucial force feedback to the unlocking operation, effectively distinguishing between "normal unlocking" and "intended disassembly" states. When the user normally pulls the lever to extend the tabletop, the pull seat gradually approaches and contacts the stop washer at the end of the compression rod as the lever rotates. Continued pulling pushes the compression rod against the return spring's force, causing it to slide into the positioning frame. This compression of the spring provides the user with a gradually increasing damping sensation, simulating a clear "end point of the first travel." At this point, the first locking hook has disengaged, but the second locking hook, due to its longer stop, remains restrained by the locking seat under normal operating force, allowing the tabletop to be pulled out to the extended position. If the user releases the lever at this point, the lever returns to its original position under the combined action of the return spring and the first torsion spring. Only when the user needs to completely disassemble the tabletop will a greater force be applied to completely overcome the damping of the return spring, pushing the compression rod fully in and allowing the lever to rotate to a larger angle. This transmits sufficient travel and pulling force through the cable, causing the long stop of the second locking hook to also completely disengage from the locking seat. This two-stage damping feedback mechanism allows users to precisely control their operation intentions by feel without visual inspection, greatly avoiding the situation where the tabletop is accidentally pulled out due to excessive force, thus improving the safety and controllability of operation.

[0016] Furthermore, the other end of the first lock hook is rotatably connected to the first lock body via a second rotating shaft. A second torsion spring is sleeved on the outer periphery of the second rotating shaft. One torsion arm of the second torsion spring presses against the first lock hook, and the other torsion arm of the second torsion spring presses against the first lock body. The other end of the second lock hook is rotatably connected to the second lock body via a third rotating shaft. A third torsion spring is sleeved on the outer periphery of the third rotating shaft. One torsion arm of the third torsion spring presses against the second lock hook, and the other torsion arm of the third torsion spring presses against the second lock body.

[0017] First, the torsion spring ensures that the locking hook remains tightly engaged with the vehicle's locking seat when the unlocking component is not in operation. Even if the vehicle vibrates while driving, the locking hook will not easily disengage, guaranteeing the reliability of the table's locked state. Second, during the table's push-back and retraction process, when the locking seat contacts the inclined surface of the locking hook's push-in portion and forces the hook to rotate and move, once the locking seat slides into the locking groove, the restoring force of the torsion spring immediately drives the locking hook to rotate rapidly, instantly completing the automatic locking with a "click" sound. The response is rapid and the locking feel is clear. Finally, after the unlocking operation is completed (the user releases the lever), the torsion spring assists the locking hook in quickly returning to its initial ready position, preparing for the next possible automatic locking. This purely mechanical elastic reset scheme has a simple structure, reliable performance, and requires no external power or complex control.

[0018] Furthermore, the movable guide mechanism includes a guide cylinder fixed under the table and a guide rod fixedly installed. Several sets of sliding pads are installed on the inner side of the guide cylinder. The guide cylinder is sleeved on the outer periphery of the guide rod through the sliding pads. An opening is machined along the axial direction on the side of the guide cylinder.

[0019] The guide rod serves as a fixed reference, while the guide cylinder acts as a moving part, forming a stable sliding pair. The sliding pad (which can also be replaced by a linear bearing) directly contacts the guide rod, transforming sliding friction into a sliding or near-sliding state with a lower coefficient of friction. This results in a smooth and effortless experience when pulling out the table, effectively reducing friction noise and wear between metal parts and extending its service life. The axial opening design on the side of the guide cylinder has practical value: firstly, it facilitates the "sliding sleeve" of the guide cylinder with the sliding pad on the fixed guide rod, simplifying the assembly process, especially in space-constrained vehicle interiors; secondly, when the table is extended for use or retracted, in addition to the locking relationship between the lock seat and the lock unit, the guide cylinder sleeved on the guide rod also provides a limit, preventing the table from tilting.

[0020] Furthermore, the moving guide mechanism also includes guide rollers distributed at one end of the guide rod.

[0021] The guide roller is designed so that when the pull-out action begins, the edge of the guide cylinder first contacts the flexible rotating roller, converting sliding friction into rolling friction. This significantly reduces resistance, making starting easier and smoother. Even with items on the table, the user can start the machine with minimal force. Simultaneously, the roller also supports and guides the end of the guide cylinder, preventing damage from uneven force distribution and protecting the sliding pad and guide rod end, thus enhancing the durability of the entire mechanism under long-term, frequent use.

[0022] The beneficial effects of this utility model are: The single-point control linkage unlocking component enables simultaneous unlocking of multiple lock units. Combined with the torsion spring automatic reset and the push-in guide structure, it achieves the convenient operation of "unlocking with one pull and locking with one push" without the need for additional tools or complicated steps. The differentiated stop length, combined with the damping feedback mechanism, allows users to distinguish between the two usage intentions by feel, effectively avoiding misoperation and greatly simplifying the usage process.

[0023] The symmetrically arranged guide rods and guide cylinders on both sides form a balanced support structure, distributing the force on the table and preventing unilateral tilting; the limiting plate precisely restricts the sliding stroke, avoiding excessive pulling and potential safety hazards; the torsion spring ensures that the lock hook and lock seat are tightly engaged, preventing vehicle vibration from causing loosening and abnormal noise, significantly improving the stability and safety of use.

[0024] The sliding pads transform intermetallic sliding friction into low-resistance sliding, reducing wear and noise; the guide rollers reduce the resistance of pulling and starting, protecting the edges of components; the purely mechanical structure requires no external power, ensuring reliable and durable performance; the axially open guide cylinder simplifies assembly and maintenance, extending the service life of the entire mechanism.

[0025] The pull-cord linkage mechanical design ensures synchronized operation and eliminates jamming issues; the adapter facilitates pull-cord adjustment and adapts to complex vehicle interior spaces; the automatic locking pure mechanical solution provides rapid response and a clear locking feel, eliminating the need for complex controls and further enhancing the product's practicality and adaptability.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the storage state according to an embodiment of the present utility model; Figure 2 This is an exploded view of an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the tabletop according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the locking mechanism structure according to an embodiment of the present utility model; Figure 5 This is a front view schematic diagram of the locking mechanism according to an embodiment of the present utility model; Figure 6 for Figure 4 Enlarged view of a portion of point A in the middle; Figure 7 This is a schematic diagram of the internal structure of the unlocking seat according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the pull-out board structure according to an embodiment of the present utility model; Figure 9 This is a schematic diagram showing a lateral comparison between the first and second locking hooks in an embodiment of this utility model; Figure 10 for Figure 5 Enlarged view of a portion of point E in the middle; Figure 11 for Figure 2 A magnified view of a portion of point C in the middle.

[0028] Label annotations: Tabletop 1; Moving guide mechanism 11; Guide cylinder 111; Sliding pad 1111; Opening 1112; Guide rod 112; Limiting plate 1121; Guide roller 113; Locking mechanism 12; First lock element 121; First lock body 1211; Second rotating shaft 1212; First lock hook 1213; First stop part 12131; First push part 12132; First lock groove 12133; Second torsion spring 1214; Second lock element 122; Second lock body 1221; Third rotating shaft 1222; Second lock hook 1223; Second stop part 12231; Second push part 12232; Second lock groove 12233; Third torsion spring 1224; Unlocking component 123; Unlocking seat 1231; First rotating shaft 1232; Rotating sleeve 1233; Hand pull plate 1234; First torsion spring 1235; Main pull cable 1236; Adapter 1237; First branch pull cable 1238; Second branch pull cable 1239; Pull seat 12341; Positioning frame 124; Pressing rod 1241; Return spring 1242; Functional hole 13; Body connecting frame 2. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 11 The vehicle-mounted multi-functional table lock assembly shown includes a table 1, a moving guide mechanism 11, and a locking mechanism 12 that controls the locking and unlocking of the table 1. The table 1 has several sets of functional holes 13, which can be used to fix small electrical appliances (such as induction cookers) or place items, thus reducing the overall weight of the table 1 while ensuring structural strength.

[0031] The moving guide mechanism 11 includes two symmetrically arranged guide rods 112 fixedly mounted on the vehicle body connecting frame 2, and guide cylinders 111 fixed on both sides below the table 1, corresponding one-to-one with the guide rods 112. The guide rods 112 serve as fixed references, and the guide cylinders 111 serve as moving parts, forming a stable sliding pair. Several sets of sliding pads 1111 are installed on the inner side of the guide cylinders 111. The guide cylinders 111 are fitted onto the outer periphery of the guide rods 112 through these sliding pads 1111, transforming the sliding friction between metals into low-resistance sliding or near-sliding, making the pulling operation smooth and reducing noise. The sides of the guide cylinders 111 are machined with openings 1112 along the axial direction. This design facilitates the fitting of the guide cylinders 111 onto the installed guide rods 112, simplifying the assembly process. One end of each guide rod 112 is fixedly connected to a limit plate 1121 by screws to limit the sliding stroke of the guide cylinders 111 and prevent the table 1 from being pulled out excessively. The moving guide mechanism 11 also includes a guide roller 113 distributed at one end of the guide rod 112. When the pull is started, the end of the guide cylinder 111 first contacts the guide roller 113, converting sliding friction into rolling friction, which effectively reduces starting resistance and protects the components.

[0032] The locking mechanism 12 includes a first locking member 121 and a second locking member 122 arranged sequentially along the moving direction of the tabletop 1, and an unlocking component 123 that is simultaneously linked with the first locking member 121 and the second locking member 122.

[0033] The first locking component 121 includes a first lock body 1211 fixed to the tabletop 1 and a first locking hook 1213 rotatably mounted on the first lock body 1211 via a second rotating shaft 1212. A second torsion spring 1214 is sleeved on the outer periphery of the second rotating shaft 1212. One end of the second torsion spring 1214 presses against the first locking hook 1213, and the other end presses against the first lock body 1211, providing torque for the first locking hook 1213 to automatically reset. One end of the first locking hook 1213 is linked to the unlocking component 123, and the other end is provided with a first stop portion 12131 and a first push portion 12132 distributed on one side thereof. A first locking groove 12133 is formed between the first stop portion 12131 and the first push portion 12132, which can be separated from or engaged with the lock seat on the vehicle body.

[0034] The second locking component 122 includes a second lock body 1221 fixed to the tabletop 1 and a second locking hook 1223 rotatably mounted on the second lock body 1221 via a third rotating shaft 1222. A third torsion spring 1224 is sleeved on the outer periphery of the third rotating shaft 1222, and its function is similar to that of the second torsion spring 1214. One end of the second locking hook 1223 is linked to the unlocking component 123, and the other end is provided with a second stop portion 12231 and a second push portion 12232 distributed on one side thereof. A second locking groove 12233 is formed between the second stop portion 12231 and the second push portion 12232. The key design is that the length of the second stop portion 12231 is greater than the length of the first stop portion 12131, making it more difficult for the second locking hook 1223 to disengage during normal operation, thereby distinguishing between the two operating intentions of "extending for use" and "complete disassembly".

[0035] The unlocking assembly 123 includes an unlocking seat 1231 fixed to the tabletop 1 and a pull plate 1234 mounted on the unlocking seat 1231 via a first rotating shaft 1232 and a rotating sleeve 1233. A first torsion spring 1235 is sleeved on the first rotating shaft 1232, one of which presses against the pull plate 1234 and the other against the unlocking seat 1231, so that the pull plate 1234 can automatically reset.

[0036] The pull plate 1234 is linked to a main pull cable 1236. An adapter 1237 is connected to the end of the main pull cable 1236 furthest from the pull plate 1234. The adapter 1237 is then connected to a first branch pull cable 1238 and a second branch pull cable 1239. The first branch pull cable 1238 is linked to a first locking hook 1213, and the second branch pull cable 1239 is linked to a second locking hook 1223, forming a single-point control, multi-point synchronous unlocking linkage system. A pull seat 12341 is located in the middle of the pull plate 1234, and the pull seat 12341 is linked to the main pull cable 1236.

[0037] A positioning frame 124 is also fixed on the unlocking seat 1231. The positioning frame 124 has a first sliding hole and a second sliding hole coaxially aligned at both ends, into which the pressing rod 1241 is slidably inserted. A return spring 1242 is sleeved around the outer periphery of the pressing rod 1241; one end of the spring presses against the positioning frame 124, and the other end is limited by a limiting flange ring on the pressing rod 1241. A stop washer is connected to the end of the pressing rod 1241 away from the pulling seat 12341, and its outer diameter is larger than the inner diameter of the first sliding hole. This damping mechanism provides clear two-stage force feedback for the unlocking operation.

[0038] Its working principle is as follows: When storing, simply push the tabletop 1 inwards. The lock seat is guided by the inclined surface of the first push part 12132, causing the first lock hook 1213 to rotate and slide into the first lock groove 12133. Under the action of the second torsion spring 1214, it automatically locks, achieving "one push to lock".

[0039] When the user needs to extend the tabletop 1, they pull the lever 1234 outwards. The lever 1234, via the main pull cable 1236, adapter 1237, first branch pull cable 1238, and second branch pull cable 1239, simultaneously pulls the first locking hook 1213 and the second locking hook 1223 to rotate, causing the first stop 12131 to lift from the vehicle body lock seat. During this process, the pull seat 12341 contacts and pushes the compression rod 1241, compressing the return spring 1242 and providing the user with a gradually increasing damping sensation. The user pulls the tabletop 1 (at this time, they can either keep the lever 1234 pulled or choose to release it, as long as they don't continue to increase the angle of rotation of the lever 1234), and the guide cylinder 111 slides along the guide rod 112 until the adjacent second locking member 122 moves to the lock seat position. The second push portion 12232 of the second locking hook 1223 contacts the lock seat and guides it into the second locking groove 12233. Then, under the action of the third torsion spring 1224, it rotates. Since the second stop portion 12231 is longer, the second stop portion 12231 locks the lock seat, completing the extension locking. When the table is released, all components reset under the action of the torsion spring.

[0040] When it is necessary to completely remove the tabletop 1, after pulling the lever 1234 to unlock the first lock 121, do not release your hand, and continue to pull the lever 1234 at a larger angle to completely overcome the resistance of the damping mechanism, so that the long stop part 12231 of the second lock hook 1223 is also completely disengaged from the lock seat. At this time, all lock units are unlocked, and the tabletop 1 together with the guide cylinder 111 can be completely slid off the guide rod 112.

[0041] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. A vehicle-mounted table assembly, comprising a table, a locking mechanism for controlling the locking and unlocking of the table, and a moving guide mechanism for guiding the table when it moves, characterized in that: The locking mechanism includes at least two sets of locking units and an unlocking component that is linked to at least two sets of locking units. At least two sets of locking units are installed on the table and arranged sequentially along the moving direction of the table. When the unlocking component drives one set of locking units to separate from the lock seat on the vehicle body, the table can then be pulled along the moving guide mechanism until the adjacent set of locking units is engaged with the lock seat on the vehicle body.

2. The vehicle-mounted table assembly according to claim 1, characterized in that: At least two sets of the locking units include a first locking element and a second locking element arranged sequentially along the moving direction of the table; The first lock includes a first lock body fixed to the table and a first lock hook rotatably mounted on the first lock body. One end of the first lock hook is linked to the unlocking component, and the other end of the first lock hook is provided with a first stop. The second lock includes a second lock body fixed to the table and a second lock hook rotatably mounted on the second lock body. One end of the second lock hook is linked to the unlocking component, and the other end of the second lock hook is provided with a second stop. The length of the second stop is greater than the length of the first stop.

3. The vehicle-mounted table assembly according to claim 2, characterized in that: The other end of the first locking hook is also provided with a first push portion distributed on one side of the first stop portion, and a first locking groove is formed between the first stop portion and the first push portion, which can be separated from or engaged with the lock seat on the vehicle body; the other end of the second locking hook is also provided with a second push portion distributed on one side of the second stop portion, and a second locking groove is formed between the second stop portion and the second push portion, which can be separated from or engaged with the lock seat on the vehicle body.

4. The vehicle-mounted table assembly according to claim 2 or 3, characterized in that: The unlocking assembly includes an unlocking base fixed to the tabletop and a pull plate mounted on the unlocking base. A first rotating shaft is mounted on the unlocking base, and a rotating sleeve fitted onto the first rotating shaft is provided on the side of the pull plate. A first torsion spring is fitted onto the first rotating shaft, with one torsion arm of the first torsion spring pressing against the pull plate and the other torsion arm pressing against the unlocking base. The pull plate is linked to a main pull cable, and an adapter is connected to the end of the main pull cable away from the pull plate. The adapter is connected to a first branch pull cable and a second branch pull cable. The end of the first branch pull cable away from the adapter is linked to a first locking hook, and the end of the second branch pull cable away from the adapter is linked to a second locking hook.

5. The vehicle-mounted table assembly according to claim 4, characterized in that: The pull plate has a pull seat in the middle that is linked to one end of the main pull cable. The pull seat has a positioning frame fixed to the unlocking seat on the side away from the main pull cable. The two ends of the positioning frame have a first sliding hole and a second sliding hole that are coaxial. A pressing rod is installed on the positioning frame and can be slidably inserted into the first sliding hole and the second sliding hole in sequence. A return spring is sleeved on the outer periphery of the pressing rod. One end of the return spring presses against the positioning frame. A limiting flange ring is provided on the outer periphery of the pressing rod and presses against the other end of the return spring. A stop washer is connected to the end of the pressing rod away from the pull seat. The outer diameter of the stop washer is larger than the inner diameter of the first sliding hole.

6. The vehicle-mounted table assembly according to claim 2 or 3, characterized in that: The other end of the first locking hook is rotatably connected to the first lock body via a second rotating shaft. A second torsion spring is sleeved on the outer periphery of the second rotating shaft. One torsion arm of the second torsion spring presses against the first locking hook, and the other torsion arm of the second torsion spring presses against the first lock body. The other end of the second locking hook is rotatably connected to the second lock body via a third rotating shaft. A third torsion spring is sleeved on the outer periphery of the third rotating shaft. One torsion arm of the third torsion spring presses against the second locking hook, and the other torsion arm of the third torsion spring presses against the second lock body.

7. The vehicle-mounted table assembly according to claim 2 or 3, characterized in that: The movable guide mechanism includes a guide cylinder fixed under the table and a guide rod fixedly installed. Several sets of sliding pads are installed on the inner side of the guide cylinder. The guide cylinder is sleeved on the outer periphery of the guide rod through the sliding pads. An opening is machined along the axial direction on the side of the guide cylinder.

8. The vehicle-mounted table assembly according to claim 7, characterized in that: The moving guide mechanism also includes guide rollers distributed at one end of the guide rod.

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