Table plate structure and commercial vehicle

Abstract

The utility model provides a table board structure and a commercial vehicle. The table board structure comprises a base, a supporting frame and a table board. Wherein the base is arranged at the bottom of the sleeping berth in a sliding mode, the base is operated to be hidden below the sleeping berth or stretch out towards one side of the sleeping berth, and a locking part for locking the position of the base is arranged between the base and the sleeping berth. The supporting frame is rotationally arranged on the base, a holding part is arranged between the supporting frame and the base, the supporting frame can be switched between a vertical state and a horizontal state relative to the base, and the holding part can keep the supporting frame in the vertical state. The table board is arranged on the supporting frame, and an adjusting part for adjusting the using angle of the table board is arranged between the table board and the supporting frame. According to the table plate structure, the table plate is easy to unfold and store, normal use of a sleeping berth does not need to be disturbed, and therefore the table plate structure has good use convenience. In addition, the adjusting part is arranged between the table plate and the supporting frame, so that the user can adjust the use angle of the table plate according to own requirements, and the use comfort can be improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a table structure. This utility model also relates to a commercial vehicle equipped with the table structure. Background Technology

[0002] Commercial vehicles, especially heavy-duty commercial trucks, are widely used in long-distance freight transportation, and their drivers and passengers often need to live in the vehicle for extended periods. During this time, to meet diverse daily needs, a table has become an important facility for improving driving comfort and work convenience. However, most existing tables located inside the cab of commercial vehicles are fixed structures, occupying limited space and hindering the movement of drivers and passengers. Furthermore, the fixed nature of the table prevents adjustment of its posture, resulting in poor comfort. While some folding table structures exist, these typically require flipping the berth before folding or unfolding, a cumbersome and inconvenient process. Moreover, frequent flipping of the berth can cause wear and tear on berth components, shortening their lifespan. Utility Model Content

[0003] In view of this, the present invention aims to propose a tabletop structure that has good ease of use and comfort.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A table structure is mounted on a sleeper berth in the cab of a commercial vehicle, the table structure comprising:

[0006] The base is slidably disposed at the bottom of the berth. The base can be manipulated to be hidden under the berth or extended to one side of the berth, and a locking part is provided between the base and the berth to lock the position of the base.

[0007] A support frame is rotatably mounted on the base, and a retaining part is provided between the support frame and the base. The support frame can switch between an upright state and a horizontal state relative to the base, and the retaining part can hold the support frame in the upright state.

[0008] A tabletop is mounted on the support frame, and an adjustment part for adjusting the usage angle of the tabletop is provided between the tabletop and the support frame.

[0009] Furthermore, the tabletop is rotatably mounted on the support frame via a pivot, and the adjustment part includes an adjustment member mounted on the tabletop, a limiting member slidably mounted on the support frame in a preset direction, and a first elastic member mounted between the limiting member and the support frame.

[0010] The adjusting member is disposed on the rotating shaft and has a plurality of limiting grooves spaced apart circumferentially along the rotating shaft. The limiting member has limiting teeth that cooperate with the limiting grooves. Under the action of the first elastic member, the limiting teeth are inserted into one of the limiting grooves and restrict the rotation of the table.

[0011] Furthermore, the support frame is a hollow column with internal support columns located inside.

[0012] The limiting member is slidably sleeved on the support column along the preset direction, and one end of the limiting member protrudes outside the support frame.

[0013] Furthermore, the limiting member is a cylindrical shape with one end open, and the first elastic member is disposed inside the limiting member;

[0014] An anti-rotation part is provided between the support column and the limiting member to prevent the limiting member from rotating, and / or a limiting protrusion is provided on the limiting member to prevent the limiting member from detaching from the support frame.

[0015] Furthermore, the support column is inserted into the support frame, and the support frame is provided with a limiting rod that passes through the support column;

[0016] The limiting rod can restrict the movement of the support column relative to the support frame.

[0017] Furthermore, the retaining part includes a first link and a second link that are hinged together, the first link being hinged to the support frame and the second link being hinged to the base;

[0018] The second connecting rod has a constraint groove at one end that is hinged to the first connecting rod, and the first connecting rod has a constraint block. In the vertical state, the constraint block is located in the constraint groove, and the first connecting rod and the second connecting rod are in a dead point state.

[0019] Furthermore, the locking part includes a lock hole provided on the base, a locking assembly slidably provided on the berth, and a second elastic member provided between the locking assembly and the berth;

[0020] The locking holes are a plurality of holes spaced apart along the sliding direction of the base, and the locking assembly is inserted into one of the locking holes under the action of the second elastic member.

[0021] Furthermore, the locking assembly includes a locking member slidably disposed on the berth and a pushing member slidably disposed on the base, wherein the sliding direction of the pushing member is perpendicular to the sliding direction of the locking member.

[0022] The locking member has a conical surface, the pushing member has an inclined surface that abuts against the conical surface, the second elastic member is disposed between the pushing member and the berth, and the locking member can be inserted into the lock hole.

[0023] Furthermore, the locking assembly includes a locking pin slidably disposed on the berth, and the locking pin is provided with a stop block that protrudes outward along its own radial direction;

[0024] The sliding direction of the locking pin is perpendicular to the sliding direction of the base, and the second elastic element is disposed on the locking pin and abuts against the stop block and the berth.

[0025] Compared with the prior art, this utility model has the following advantages:

[0026] The table structure described in this utility model features an adjustable section between the table and the support frame, allowing the support frame to freely switch between an upright and horizontal position relative to the base. The base is also slidably positioned under the berth. Therefore, when the table is not in use, the base, support frame, and table can be concealed under the berth without occupying extra space in the driver's cab, thus not affecting the normal activities of the driver and passengers. Compared to the complex operation of traditional side-wall folding tables that require flipping the berth, this design simplifies the unfolding and storage of the table without interfering with the normal use of the berth, resulting in better usability. Furthermore, the adjustable section between the table and the support frame allows the user to adjust the angle of the table according to their needs, improving user comfort.

[0027] By setting multiple limiting slots on the adjusting component, drivers and passengers can adjust the table angle according to their own needs, which is conducive to meeting diverse usage requirements. The cooperation between the limiting teeth and the limiting slots of the limiting component can effectively ensure that the table is stably fixed at each preset angle. The limiting component is slidably mounted on the support frame along the preset direction. When the table angle needs to be adjusted, the driver and passengers only need to overcome the elastic force of the first elastic component, slide the limiting component to disengage the limiting teeth from the current limiting slot, and then rotate the table to the appropriate angle. Then, by releasing the limiting component, the limiting teeth will automatically insert into the corresponding limiting slots under the action of the first elastic component, completing the angle adjustment and fixing. The operation process is simple and direct, without complicated tools or steps.

[0028] The support frame adopts an internally hollow columnar structure, which helps to reduce vehicle weight and also provides a concealed and neat space for the installation of other components, making the table more aesthetically pleasing. One end of the limiting component is exposed on the outside of the support frame, which facilitates operation by the driver and passengers. The exposed part can be seen and touched directly, and the limiting component can be controlled with simple actions, which facilitates quick adjustment of the table angle and further improves the usability of the table structure.

[0029] The limiting component is a cylindrical shape with one end open, which facilitates the placement of the first elastic component inside and improves the structural compactness of the adjustment part. The anti-rotation part set between the support column and the limiting component can effectively ensure that the limiting component always slides along the preset direction, so that the limiting teeth can be accurately inserted into the limiting groove, ensuring that the table can be stably fixed after being adjusted to the appropriate angle, thereby improving the reliability and safety of the table structure.

[0030] Inserting the support columns into the support frame facilitates their installation. The use of limiting rods that penetrate the support columns on the support frame improves their stability and prevents loosening or displacement during use, thus ensuring the overall stability and reliability of the tabletop structure. Furthermore, the design of inserting the support columns into the support frame simplifies the installation process.

[0031] By including a hinged first and second link in the retaining part, when the support frame is in the upright position, the first and second links are at their dead points, ensuring that the first and second links are stably held in their current positions. This reliably keeps the support frame in an upright position, thus ensuring the stability of the tabletop during use. Furthermore, the hinged first and second links in the retaining part result in a relatively simple structure with fewer parts, facilitating manufacturing.

[0032] The locking mechanism utilizes multiple locking holes spaced apart along the sliding direction on the base, along with a locking assembly that slides on the berth. These two elements work together to lock the base in place. As the base slides to different positions, the locking assembly automatically inserts into the corresponding locking hole under the action of a second elastic element, thus firmly fixing the base in that position. Furthermore, the multiple locking holes allow the base to be locked in different positions, facilitating the personalization of the tray table position for passengers in various scenarios.

[0033] In the locking assembly, the conical surface of the locking member abuts against the inclined surface of the pushing member. The horizontal sliding of the pushing member is converted into a vertical thrust on the locking member, causing the locking member to overcome the elastic force of the second elastic member and slide upward, thus disengaging from the keyhole and unlocking the device. This eliminates the need for complex operating procedures, improving convenience and efficiency. Furthermore, the geometric properties of the inclined and conical surfaces reduce effort during the unlocking process.

[0034] The locking assembly consists of a locking pin that slides onto the berth and a stop block that protrudes radially outward from the pin. A second elastic element abuts between the stop block and the berth. When the base needs to be moved, the driver or passenger only needs to overcome the elastic force of the second elastic element and pull the locking pin out of the lock hole to slide the base to another position. This structure is simple, has few components, and is easy to manufacture.

[0035] Another objective of this utility model is to provide a commercial vehicle equipped with a table structure as described above.

[0036] The commercial vehicle described in this utility model, by setting up the table structure as described above, can be hidden under the sleeper berth, so that the table can save interior space when not in use and will not obstruct the movement of the driver and passengers. When the table is needed, it can be easily unfolded and the angle adjusted, which ensures the functionality of the table without affecting the overall spatial layout of the cab and the range of movement of the driver and passengers. Attached Figure Description

[0037] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0038] Figure 1 This is an application state diagram of the tabletop structure described in this utility model embodiment;

[0039] Figure 2 for Figure 1 The diagram shows the structure when the sleeper berth body is removed.

[0040] Figure 3 for Figure 2 A schematic diagram of the structure shown from another perspective;

[0041] Figure 4 for Figure 3 Sectional view of line AA in the middle;

[0042] Figure 5 for Figure 4 Enlarged view of section C;

[0043] Figure 6 for Figure 3 Sectional view of the middle BB line;

[0044] Figure 7 for Figure 6 Enlarged view of section D;

[0045] Figure 8 for Figure 2 The exploded view of the structure shown;

[0046] Figure 9 This is a schematic diagram of the structure of the bracket described in an embodiment of the present utility model;

[0047] Figure 10 This is an assembly diagram of the support column, limiting rod, and limiting component described in an embodiment of the present utility model.

[0048] Figure 11This is an assembly diagram of the support column and the limiting rod according to an embodiment of the present utility model;

[0049] Figure 12 This is a schematic diagram of the structure of the limiting member described in an embodiment of the present utility model;

[0050] Figure 13 This is a schematic diagram of the limiting member described in an embodiment of the present utility model from another perspective;

[0051] Figure 14 This is a schematic diagram of the structure of the retaining part according to an embodiment of the present utility model;

[0052] Figure 15 This is a schematic diagram of the locking part described in an embodiment of the present utility model;

[0053] Figure 16 This is another structural schematic diagram of the tabletop structure described in this utility model embodiment;

[0054] Figure 17 for Figure 16 A schematic diagram of the structure shown from another perspective;

[0055] Figure 18 for Figure 17 Enlarged view of section E in the middle;

[0056] Figure 19 This is a schematic diagram of the structure of the locking pin described in an embodiment of this utility model.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1. Base; 2. Support frame; 3. Tabletop; 4. Holding part; 5. Locking part; 6. Berth; 7. Rotating shaft; 8. Support column; 9. Limiting component; 10. First spring; 11. Limiting rod;

[0059] 101. Base body; 1011. Lock hole; 102. Upper slide rail;

[0060] 301. Tabletop body; 3031. Limiting groove; 302. Bracket; 303. Adjustable component;

[0061] 401, First link; 4011, Constraint block; 402, Second link;

[0062] 501. Locking component; 502. Pushing component; 503. Second spring; 504. Locking pin; 5041. First rod; 50411. Stop block; 5042. Second rod;

[0063] 601. Sleeper berth body; 602. Fixing plate; 603. Fixing block; 604. Lower slide rail;

[0064] 801, Anti-rotation block;

[0065] 901. Limiting tooth; 902. Anti-rotation groove; 903. Limiting protrusion. Detailed Implementation

[0066] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0067] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0068] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0069] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0070] Most existing tables inside commercial vehicle cabs are fixed. Since the cab layout is already compact, fixed tables restrict the movement of drivers and passengers, making it easy to bump into the table during daily operations and causing inconvenience. They also obstruct vision and affect driving safety. Furthermore, their fixed nature significantly reduces operability, preventing flexible angle adjustments for different scenarios and resulting in poor comfort. On the other hand, while some folding table structures exist, these usually require flipping the berth before folding or unfolding, a cumbersome and complex process that further reduces their ease of use.

[0071] Therefore, this embodiment proposes a novel table structure that offers better ease of use and comfort. This table structure is mounted on the sleeper berth 6 in the cab of a commercial vehicle and includes a base 1, a support frame 2, and a table 3 in its overall structure.

[0072] The base 1 is slidably mounted on the bottom of the berth 6. The base 1 can be manipulated to be hidden beneath the berth 6 or extended to one side of the berth 6, and a locking part 5 is provided between the base 1 and the berth 6 to lock the position of the base 1. The support frame 2 is rotatably mounted on the base 1, and a retaining part 4 is provided between the support frame 2 and the base 1. The support frame 2 can switch between an upright and a horizontal state relative to the base 1, and the retaining part 4 can hold the support frame 2 in an upright state. A tabletop 3 is mounted on the support frame 2, and an adjustment part is provided between the tabletop 3 and the support frame 2 to adjust the angle of the tabletop 3.

[0073] The table structure of this embodiment features an adjustable section between the table 3 and the support frame 2, allowing the support frame 2 to freely switch between an upright and horizontal position relative to the base 1. The base 1 is also slidably positioned at the bottom of the berth 6. Therefore, when the table 3 is not in use, the base 1, support frame 2, and table 3 can be hidden under the berth 6 without occupying extra space in the driver's cab, thus not affecting the normal activities of the driver and passengers. Compared to the complex operation of traditional side-wall folding table 3, which requires flipping the berth 6, the unfolding and storage of the table 3 is simpler and does not interfere with the normal use of the berth 6, thus providing better usability. Furthermore, the adjustable section between the table 3 and the support frame 2 allows the user to adjust the angle of the table 3 according to their needs, improving user comfort.

[0074] Based on the above overview, an exemplary structural reference for the tabletop structure in this embodiment is provided. Figures 1 to 8 As shown, in order to prevent the table structure from interfering with other components such as seats when it slides, the table structure can be placed between the two seats in a specific implementation, so as to use the area between the two seats to provide space for the table structure to slide out of the berth 6.

[0075] In a preferred embodiment, the tabletop 3 is rotatably mounted on the support frame 2 via a pivot 7. The adjustment part includes an adjustment member 303 mounted on the tabletop 3, a limiting member 9 slidably mounted on the support frame 2 in a preset direction, and a first elastic member disposed between the limiting member 9 and the support frame 2. The adjustment member 303 is mounted on the pivot 7 and has multiple limiting grooves 3031 spaced circumferentially along the pivot 7. The limiting member 9 has limiting teeth 901 that engage with the limiting grooves 3031. Under the action of the first elastic member, the limiting teeth 901 are inserted into one of the limiting grooves 3031, thus restricting the rotation of the tabletop 3.

[0076] By setting multiple limiting grooves 3031 at intervals along the circumference of the rotating shaft 7 on the adjusting component 303, the tabletop 3 can be fixed at multiple preset angles, allowing the angle of the tabletop 3 to be adjusted according to individual needs and meet diverse usage requirements. The engagement between the limiting teeth 901 of the limiting component 9 and the limiting grooves 3031 effectively ensures that the tabletop 3 is stably fixed at every angle. This mechanical engagement method is simple and reliable, and compared to designs that rely on friction or other complex methods to fix the angle, it more effectively prevents the tabletop 3 from shifting due to slight external forces during use.

[0077] Furthermore, the limiting member 9 is slidably mounted on the support frame 2 along a preset direction. When the angle of the table 3 needs to be adjusted, the driver or passenger only needs to overcome the elastic force of the first elastic member and slide the limiting member 9 to disengage the limiting tooth 901 from the current limiting groove 3031, thereby rotating the table 3 to the appropriate angle. Then, by releasing the limiting member 9, under the action of the first elastic member, the limiting tooth 901 will automatically insert into the corresponding limiting groove 3031, completing the angle adjustment and fixing. The operation process is simple and direct, requiring no complicated tools or steps.

[0078] Specifically, refer to Figure 8 As shown in the figure, the tabletop 3 in this embodiment includes a tabletop body 301 and a support 302 disposed at the bottom of the tabletop body 301. The tabletop 3 is rotatably mounted on the support frame 2 via the support 302. (Refer to...) Figure 9 As shown, the support 302 includes a top plate connected to the tabletop body 301, lugs on two opposite sides of the top plate, and an adjusting member 303 connected to the top plate and located between the two lugs. Additionally, both the lugs and the adjusting member 303 have shaft holes for the rotating shaft 7 to pass through, and the shaft hole on the adjusting member 303 is approximately circular. The aforementioned plurality of limiting grooves 3031 are sequentially arranged along the circumference of this circular portion.

[0079] Combination Figure 5 and Figure 10 As shown in the diagram, in a preferred embodiment, the support frame 2 is a hollow column with an internal support column 8. A limiting member 9 is slidably fitted onto the support column 8 along a predetermined direction, with one end of the limiting member 9 protruding from the outside of the support frame 2. This predetermined direction is consistent with the axial direction of the aforementioned rotating shaft 7. By adopting a hollow columnar structure for the support frame 2, its internal space can be utilized, reducing the weight of the support frame 2 itself and contributing to vehicle weight reduction. Furthermore, it provides a concealed and organized space for the installation of subsequent components, making the overall structure of the table 3 more compact.

[0080] like Figure 1 As shown in the diagram, in this embodiment, the support frame 2 is generally a rectangular columnar structure. And combined with... Figure 10 and Figure 11As shown, in order to facilitate the setting of the adjustment part, in a preferred embodiment, the support column 8 is inserted into the support frame 2, and the support frame 2 is provided with a limiting rod 11 that passes through the support column 8. The limiting rod 11 can restrict the movement of the support column 8 relative to the support frame 2.

[0081] This design simplifies the installation of the support column 8. During production and assembly, workers can quickly and accurately insert the support column 8 into the corresponding position on the support frame 2, and then secure the connection by installing the limiting rod 11. Compared to some complex connection methods, this design reduces installation steps and time, improves production efficiency, and lowers production costs. Furthermore, the limiting rod 11 enhances the stability of the support column 8, preventing loosening or displacement during use, thus ensuring the stability and reliability of the entire tabletop structure.

[0082] Furthermore, in a preferred embodiment, the limiting member 9 is a cylindrical shape with one open end. The first elastic member is disposed inside the limiting member 9, and an anti-rotation part for the limiting member 9 is provided between the support column 8 and the limiting member 9. The limiting member 9 is provided with a limiting protrusion 903, which can prevent the limiting member 9 from detaching from the support frame 2. In this embodiment, by setting the limiting member 9 as a cylindrical shape with one open end, the first elastic member can be placed inside the limiting member 9, and the stability and reliability of the elastic member during operation can be guaranteed.

[0083] The anti-rotation part provided between the support column 8 and the limiting member 9 effectively prevents the limiting member 9 from rotating during sliding, ensuring that the limiting member 9 always slides in the preset direction. This allows the limiting tooth 901 to accurately insert into the limiting groove 3031, ensuring that the table 3 can be stably fixed after being adjusted to the appropriate angle, thus improving the reliability and safety of the table structure. Furthermore, during vehicle operation, due to bumps and other factors, the limiting member 9 may be subjected to external forces and potentially detach from the support frame 2. The limiting protrusion 903 ensures that the limiting member 9 remains connected to the support frame 2, thereby guaranteeing the integrity and stability of the entire adjustment structure.

[0084] Specifically, see Figure 12 and Figure 13As shown in the diagram, in a preferred embodiment, the aforementioned limiting teeth 901 are located at one end of the open end of the limiting member 9, and there are multiple teeth arranged sequentially along the circumference of the limiting member 9, making one end of the open end of the limiting member 9 gear-shaped. The aforementioned first elastic element is specifically a first spring 10 located within the limiting member 9, and the first spring 10 abuts against the sealing end of the limiting member 9 and the support column 8. Furthermore, based on the aforementioned limiting rod 11, a clearance groove is provided on the limiting member 9, and the limiting rod 11 passes through this clearance groove. Therefore, interference with the limiting rod 11 can be prevented when the limiting member 9 slides relative to the support column 8.

[0085] In addition, to further improve the effectiveness of use, such as Figure 12 As shown, the limiting protrusions 903 are a plurality of those spaced circumferentially along the limiting member 9. For example, they can be... Figure 12 The four shown are examples of limit protrusions 903; however, other numbers of limit protrusions 903 can also be used. Combined with... Figure 11 and Figure 12 As shown in the preferred embodiment, the anti-rotation part includes an anti-rotation block 801 that protrudes radially outward along the support column 8, and an anti-rotation groove 902 corresponding to the anti-rotation block 801, disposed within the limiting member 9, with the anti-rotation block 801 inserted into the anti-rotation groove 902. Furthermore, to further improve the anti-rotation effect, multiple anti-rotation blocks 801 are spaced apart circumferentially along the support column 8, and the anti-rotation grooves 902 correspond one-to-one with the anti-rotation blocks 801. In this embodiment, the number of anti-rotation blocks 801 is not specifically limited and can be adjusted according to design requirements.

[0086] It should be noted that, besides inserting the support column 8 onto the support frame 2 and installing the limiting rod 11, the support column 8 can also be directly welded onto the support frame 2, in which case the limiting rod 11 can be omitted. Furthermore, besides making the limiting member 9 cylindrical and providing an anti-rotation part between the limiting member 9 and the support column 8, the limiting member 9 can also be polygonal, and its rotation can be restricted by the contact between the outer circumference of the limiting member 9 and the support frame 2.

[0087] In addition to the structure described above, the adjustment part can also be configured by providing multiple adjustment holes spaced circumferentially along the pivot 7 on the adjustment member 303, and providing a limiting post on the limiting member 9 that can be inserted into the adjustment holes. This structure can also adjust the angle of the tabletop 3 and lock the tabletop 3 after angle adjustment.

[0088] Reference Figure 2 and Figure 14As shown in the diagram, in a preferred embodiment, the retaining part 4 includes a first connecting rod 401 and a second connecting rod 402 hinged together. The first connecting rod 401 is hinged to the support frame 2, and the second connecting rod 402 is hinged to the base 1. Furthermore, the end of the second connecting rod 402 that is hinged to the first connecting rod 401 is provided with a constraint groove, and the first connecting rod 401 is provided with a constraint block 4011. In the upright state, the constraint block 4011 is located within the constraint groove, and the first connecting rod 401 and the second connecting rod 402 are in a dead-point state.

[0089] When the support frame 2 is in the upright position, the first link 401 and the second link 402 are in a dead-point state. In mechanical principles, the transmission angle of the mechanism is zero in the dead-point state, and the external force exerting a zero rotational effect on the mechanism is zero. This allows the structure composed of the first link 401 and the second link 402 to stably maintain its current position, thus reliably keeping the support frame 2 in an upright state. During the operation of the commercial vehicle, even if the vehicle is affected by external forces such as bumps and vibrations, the support frame 2 will not easily rotate or tip over due to the existence of the dead-point state, ensuring the stability of the table 3 during use and providing a safe and reliable surface for placing items and operating for the driver and passengers. The retaining part 4 uses the first link 401 and the second link 402 connected by a hinge. This structural design is relatively simple, with fewer parts and a simple manufacturing process.

[0090] Furthermore, by setting a constraint groove on the second link 402 and a constraint block 4011 on the first link 401, when the support frame 2 is in the upright state, the constraint block 4011 falls into the constraint groove, causing the first link 401 and the second link 402 to reach a dead point state. When it is necessary to switch the support frame 2 from the upright state to the horizontal state, only a certain external force needs to be applied to make the first link 401 and the second link 402 overcome the limitation of the dead point state, and the rotation of the support frame 2 can be easily realized. Similarly, when it is necessary to switch the support frame 2 from the horizontal state to the upright state, a simple operation can make the constraint block 4011 fall into the constraint groove, so that the first link 401 and the second link 402 can reach the dead point state again, and the support frame 2 can be stably kept in the upright state. This operation method is simple and convenient, without complicated operation steps, and can meet the needs of drivers and passengers to quickly switch the state of the table 3 in different usage scenarios.

[0091] In a preferred embodiment, the locking part 5 includes a locking hole 1011 on the base 1, a locking assembly slidably disposed on the berth 6, and a second elastic member disposed between the locking assembly and the berth 6. Furthermore, multiple locking holes 1011 are spaced apart along the sliding direction of the base 1, and the locking assembly is inserted into one of the locking holes 1011 under the action of the second elastic member. Here, by providing multiple locking holes 1011 spaced apart along the sliding direction on the base 1, the locking part 5 allows the locking assembly to automatically insert into the corresponding locking hole 1011 under the action of the second elastic member when the base 1 slides to different positions, thereby firmly fixing the base 1 in that position. This allows the base 1 to be locked in different positions, meeting the personalized needs of passengers for the position of the table 3 in different scenarios.

[0092] Furthermore, the second elastic element allows the locking component to automatically insert into the lock hole 1011, eliminating the need for manual locking by the driver or passenger. When the base 1 slides to the appropriate position, the second elastic element pushes the locking component into the corresponding lock hole 1011, achieving automatic locking and effectively improving operational convenience. When it is necessary to move the base 1, the driver or passenger only needs to apply a certain external force to overcome the elasticity of the second elastic element, pulling the locking component out of the lock hole 1011, and can easily slide the base 1 to other positions. The entire unlocking and moving process is simple and easy to understand, facilitating the unfolding and storage of the tabletop 3.

[0093] Reference Figure 1 , Figure 7 and Figure 15 As shown in the illustration, in a specific embodiment, the sleeper 6 includes a sleeper body 601, two fixing plates 602 spaced apart at the bottom of the sleeper body 601, and a lower slide rail 604 and a fixing block 603 respectively provided on each fixing plate 602. The base 1 includes a base body 101 and an upper slide rail 102 provided at the bottom of the base body 101. The base 1 is slidably mounted on the lower slide rail 604 via the upper slide rail 102. The locking hole 1011 is provided on the side of the base body 101.

[0094] In addition, such as Figure 7 and Figure 15 As shown in the illustration, in one specific embodiment, the locking assembly includes a locking member 501 slidably disposed on the berth 6 and a pushing member 502 slidably disposed on the base 1, wherein the sliding direction of the pushing member 502 is perpendicular to the sliding direction of the locking member 501. The locking member 501 has a conical surface, the pushing member 502 has an inclined surface that abuts against the conical surface, a second elastic member is disposed between the pushing member 502 and the berth 6, and the locking member 501 can be inserted into the lock hole 1011.

[0095] Furthermore, the locking member 501 is specifically positioned along a direction perpendicular to the sliding direction of the base 1, that is, along... Figure 1 The sleeper berth body 601 shown is slidably mounted on the fixed block 603 along its length. Wherein, as... Figure 15 As shown, the locking member 501 in this embodiment includes a conical body, a lock head disposed on one side of the body, and an operating block disposed on the other side of the body. The pushing member 502 is slidably disposed in the fixing block 603 along the height direction of the berth 6, and the pushing member 502 has a rod-shaped structure, and has a protruding portion that bulges outward along its radial direction at the end of the pushing member 502 that abuts against the locking member 501.

[0096] like Figure 7 As shown, in this embodiment, the second elastic element is specifically a second spring 503 sleeved on the pusher 502 and abutting between the protrusion and the fixing block 603. In a further embodiment, the pusher 502 consists of multiple elements spaced circumferentially along the locking element 501, and the second springs 503 are correspondingly arranged one-to-one with the pusher 502. For example, the pusher 502 and the second spring 503 can be... Figure 7 The two shown, arranged vertically opposite each other, can also be other numbers spaced apart circumferentially along the locking member 501.

[0097] In this locking assembly, the conical surface of the locking member 501 abuts against the inclined surface of the pushing member 502. When unlocking is required, pushing the pushing member 502 causes the horizontal sliding of the pushing member 502 to be converted into a vertical pushing force on the locking member 501 due to the engagement of the inclined surface and the conical surface. This forces the locking member 501 to overcome the elastic force of the second spring 503 and slide upward, thus disengaging from the lock hole 1011 and achieving the unlocking operation. When the pushing member 502 is released, it returns to its original position under the action of the second spring 503, and the locking member 501 re-inserts into the lock hole 1011 under the combined action of the second spring 503, completing the locking process. The entire operation is simple and direct, requiring no complicated steps, greatly improving the convenience and efficiency of operation.

[0098] Furthermore, the geometric properties of the inclined and conical surfaces reduce effort during unlocking. Compared to directly pulling the locking member 501 vertically to unlock, the driver and passengers can move the locking member 501 with less force, reducing the difficulty of operation. In addition, the cooperation between the locking member 501 and the lock hole 1011, as well as the cooperation between the pusher 502 and the locking member 501 using the inclined and conical surfaces, ensures a tight connection of the locking assembly in the locked state. During vehicle operation, even under significant vibration and bumps, the locking member 501 is unlikely to dislodge from the lock hole 1011, ensuring the stability of the base 1 and thus guaranteeing the overall stability of the table structure.

[0099] In addition, the locking component 501 and the pushing component 502 slide vertically, which will not occupy too much space in the limited cab of a commercial vehicle. Compared with some locking structures that occupy a large amount of space in the horizontal direction, it can effectively ensure the rational use of the interior space of the cab, and will not affect the normal activities of the driver and passengers.

[0100] Based on the overall description, in this embodiment of the table structure, when the table 3 needs to be used, first manipulate the locking member 501 to make the lock head disengage from the lock hole 1011, then manipulate the base 1 to extend to one side of the berth 6 and disengage from the hidden position under the berth 6. When the base 1 can slide smoothly to the appropriate position, then release the locking member 501 to lock the position of the base 1 through the locking part 5.

[0101] Then, the support frame 2 is rotated from a horizontal position relative to the base 1 to an upright position. Under the action of the retaining part 4 between the support frame 2 and the base 1, when the support frame 2 is in the upright position, the constraint block 4011 falls into the constraint groove, and the first connecting rod 401 and the second connecting rod 402 reach the dead point, thereby stably holding the support frame 2 in the upright position. Finally, when unfolding the tabletop 3, the adjustment part can be operated. First, press the limiting member 9 to overcome the elastic force of the first elastic member and slide the limiting member 9, so that the limiting tooth 901 on the limiting member 9 disengages from the limiting groove 3031 on the adjusting member 303. Then, rotate the tabletop 3 to a suitable angle, and then release the limiting member 9. Under the action of the first elastic member, the limiting tooth 901 automatically inserts into the corresponding limiting groove 3031, completing the adjustment and fixing of the tabletop 3 angle.

[0102] When folding the tabletop 3, first operate the adjustment unit to overcome the elastic force of the first elastic element and slide the limiting member 9, causing the limiting tooth 901 to disengage from the limiting groove 3031. Rotate the tabletop 3 to its initial position (e.g., vertical position), then release the limiting member 9, allowing the limiting tooth 901 to re-insert into the corresponding limiting groove 3031 for fixation. Then apply a certain external force to overcome the dead point restriction of the first connecting rod 401 and the second connecting rod 402, rotating the support frame 2 from the vertical state to the horizontal state, placing it horizontally on the base 1. Finally, manipulate the locking member 501 to disengage the lock head from the lock hole 1011, then manipulate the base 1 to slide back to the hidden position under the berth 6. After that, release the locking member 501 to lock the base 1 in position through the locking part 5, completing the entire unfolding and folding process of the tabletop 3.

[0103] Therefore, the tabletop structure in this embodiment, by adopting the above structure, makes the unfolding and storage of the tabletop 3 simpler compared to the complicated operation of flipping the berth 6 required by traditional side-wall folding tabletops 3, without interfering with the normal use of the berth 6, thus providing better ease of use. In addition, the adjustable part between the tabletop 3 and the support frame 2 allows the user to adjust the angle of the tabletop 3 according to their own needs, thereby improving user comfort.

[0104] Example 2

[0105] This embodiment relates to a tabletop structure, such as... Figures 16 to 18 As shown, its overall structure is the same as that of Embodiment 1, except that the structure of the locking component is different.

[0106] Among them, such as Figure 18 As shown, the locking assembly of this embodiment includes a locking pin 504 slidably disposed on the berth 6, and a stop block 50411 protruding radially outward on the locking pin 504. Furthermore, the sliding direction of the locking pin 504 is perpendicular to the sliding direction of the base 1, and a second elastic element (i.e., a second spring 503) is specifically disposed on the locking pin 504 and abuts against the stop block 50411 and the berth 6.

[0107] The locking assembly mainly consists of a locking pin 504 slidably mounted on the berth 6 and a stop block 50411 protruding radially outward from it. Its simple structure facilitates design and implementation. It also reduces potential failure points caused by too many components, ensuring the stability and reliability of the locking function. When the base 1 needs to be moved, the driver or passenger only needs to apply a certain external force to overcome the elasticity of the second elastic element and pull the locking pin 504 out of the lock hole 1011, easily sliding the base 1 to other positions. The operation is simple and direct, requiring no complex operating skills or tools; even those unfamiliar with the table structure can quickly learn to use it. Once the base 1 has slid to a new position, releasing the locking pin 504 causes it to automatically insert into the corresponding lock hole 1011 under the action of the second elastic element, completing the locking process and enabling convenient operation.

[0108] Specifically, such as Figure 19 As shown, to facilitate the installation of the second elastic element, the locking pin 504 in this embodiment includes a first rod 5041 with a locking head and a second rod 5042 connected to the first rod 5041, wherein the outer diameter of the second rod 5042 is larger than that of the first rod 5041. The aforementioned stop block 50411 is specifically disposed on the first rod 5041, and the second spring 503 is specifically sleeved on the first rod 5041 and abuts against the stop block 50411 and the second rod 5042. The first rod 5041 and the second rod 5042 are specifically welded or interference-fitted together, and to facilitate replacement of the second spring 503, they can also be screwed together.

[0109] The operation process of the tabletop structure in this embodiment is basically the same as that in Embodiment 1, and will not be repeated here. Furthermore, the tabletop structure in this embodiment makes unfolding and storing the tabletop 3 simpler, without interfering with the normal use of the berth 6, thus providing good usability. In addition, users can adjust the angle of the tabletop 3 according to their needs, improving comfort.

[0110] In addition, this embodiment also relates to a commercial vehicle, which is equipped with a table structure as described above or as described in Embodiment 1.

[0111] The commercial vehicle of this utility model, by setting up a table structure as described above or as in Embodiment 1, allows the table 3 to be hidden under the sleeper berth 6, thus saving interior space when not in use and not obstructing the movement of the driver and passengers. When the table 3 is needed, it can be easily unfolded, ensuring the functionality of the table 3 without affecting the overall spatial layout of the cab and the range of movement of the driver and passengers, and providing good user comfort.

[0112] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A table structure, which is mounted on a bunk (6) in a driver's cab of a commercial vehicle, characterized in that The tabletop structure includes: The base (1) is slidably disposed at the bottom of the berth (6). The base (1) can be manipulated to be hidden under the berth (6) or extended to one side of the berth (6). A locking part (5) for locking the position of the base (1) is provided between the base (1) and the berth (6). A support frame (2) is rotatably mounted on the base (1), and a retaining part (4) is provided between the support frame (2) and the base (1). The support frame (2) can switch between an upright state and a horizontal state relative to the base (1), and the retaining part (4) can hold the support frame (2) in the upright state. A tabletop (3) is provided on the support frame (2), and an adjustment part for adjusting the angle of use of the tabletop (3) is provided between the tabletop (3) and the support frame (2).

2. The tabletop structure according to claim 1, characterized in that: The tabletop (3) is rotatably mounted on the support frame (2) via a pivot (7). The adjustment part includes an adjustment member (303) mounted on the tabletop (3), a limiting member (9) slidably mounted on the support frame (2) in a preset direction, and a first elastic member mounted between the limiting member (9) and the support frame (2). The adjusting member (303) is provided on the rotating shaft (7) and has a plurality of limiting grooves (3031) spaced circumferentially along the rotating shaft (7). The limiting member (9) has a limiting tooth (901) that cooperates with the limiting groove (3031). Under the action of the first elastic member, the limiting tooth (901) is inserted into one of the limiting grooves (3031) and restricts the rotation of the table (3).

3. The tabletop structure according to claim 2, characterized in that: The support frame (2) is a hollow column, and the support frame (2) is provided with an internal support column (8); The limiting member (9) is slidably sleeved on the support column (8) along the preset direction, and one end of the limiting member (9) is exposed outside the support frame (2).

4. The tabletop structure according to claim 3, characterized in that: The limiting member (9) is a cylindrical shape with one end open, and the first elastic member is disposed inside the limiting member (9); An anti-rotation part is provided between the support column (8) and the limiting member (9) to prevent the limiting member (9) from rotating, and / or a limiting protrusion (903) is provided on the limiting member (9), the limiting protrusion (903) can restrict the limiting member (9) from disengaging from the support frame (2).

5. The tabletop structure according to claim 3, characterized in that: The support column (8) is inserted into the support frame (2), and the support frame (2) is provided with a limiting rod (11) that passes through the support column (8); The limiting rod (11) can restrict the movement of the support column (8) relative to the support frame (2).

6. The tabletop structure according to claim 1, characterized in that: The retaining part (4) includes a first connecting rod (401) and a second connecting rod (402) that are hinged together. The first connecting rod (401) is hinged to the support frame (2), and the second connecting rod (402) is hinged to the base (1). The second link (402) is hinged to the first link (401) at one end and is provided with a constraint groove. The first link (401) is provided with a constraint block (4011). In the vertical state, the constraint block (4011) is located in the constraint groove, and the first link (401) and the second link (402) are in a dead point state.

7. The tabletop structure according to any one of claims 1 to 6, characterized in that: The locking part (5) includes a locking hole (1011) provided on the base (1), a locking assembly slidably provided on the berth (6), and a second elastic member provided between the locking assembly and the berth (6); The lock holes (1011) are a plurality of holes spaced apart along the sliding direction of the base (1). Under the action of the second elastic member, the locking assembly is inserted into one of the lock holes (1011).

8. The tabletop structure according to claim 7, characterized in that: The locking assembly includes a locking member (501) slidably disposed on the berth (6) and a pushing member (502) slidably disposed on the base (1), and the sliding direction of the pushing member (502) is perpendicular to the sliding direction of the locking member (501). The locking member (501) has a conical surface, the pushing member (502) has an inclined surface that abuts against the conical surface, the second elastic member is disposed between the pushing member (502) and the berth (6), and the locking member (501) can be inserted into the lock hole (1011).

9. The tabletop structure according to claim 7, characterized in that: The locking assembly includes a locking pin (504) slidably disposed on the berth (6), and the locking pin (504) is provided with a stop block (50411) protruding outward along its own radial direction; The sliding direction of the locking pin (504) is perpendicular to the sliding direction of the base (1). The second elastic element is disposed on the locking pin (504) and abuts against the stop block (50411) and the berth (6).

10. A commercial vehicle, characterized in that: The commercial vehicle is equipped with a table structure as described in any one of claims 1 to 9.

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