Vehicle body structure and vehicle

Abstract

The invention relates to a vehicle body structure and a vehicle, belongs to the technical field of vehicles, and at least solves the problem of poor stability of a liftable vehicle body structure in the prior art. The invention provides a vehicle body structure which is used for a vehicle and comprises an upper vehicle body and a lower vehicle body. The lower vehicle body is connected below the upper vehicle body; the lifting locking mechanism is arranged between the upper vehicle body and the lower vehicle body, the lifting locking mechanism has a first state and a second state and can be switched between the first state and the second state, in the first state, the lifting locking mechanism can drive the upper vehicle body to do lifting motion relative to the lower vehicle body, and in the second state, the lifting locking mechanism can drive the lower vehicle body to do lifting motion. The lifting locking mechanism can lock and fix the upper vehicle body to the lower vehicle body.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle body structure and a vehicle. Background Art

[0002] In the automotive industry, traditional body structures are often welded together. This fixation method prevents the height and shape of the vehicle from being altered after it is formed, resulting in limited interior flexibility and difficulty meeting the diverse needs of users in different usage scenarios.

[0003] Although current technologies have begun to explore liftable body structures, aiming to improve the vehicle's adaptability through space expansion (for example, using lifting mechanisms to achieve the extension and retraction of some body components), there are still many deficiencies in key technical aspects such as structural stability and connection reliability during the lifting process.

[0004] For example, a conventional liftable vehicle body structure connects the upper and lower bodies via a drive mechanism to adjust the interior space. However, it relies solely on the mechanical retention force of the drive mechanism to maintain the position of the upper body. During vehicle operation, external factors such as vibration and impact can cause relative displacement between the upper and lower bodies. This can not only cause structural stability issues but also adversely affect the vehicle's collision safety performance.

[0005] For example, a prior art vehicle design proposes an actuator that moves the roof between an extended and folded position. However, this design also relies solely on the mechanical retention force of the actuator to maintain the roof's position. During vehicle operation, vibrations and other disturbances may cause relative displacement between the upper and lower bodywork, creating risks to structural stability. Summary of the Invention

[0006] One of the purposes of the present invention is to provide a vehicle body structure and a vehicle to solve the problem of poor stability faced by the liftable vehicle body structure in the prior art, ensure that the vehicle body can maintain good structural stability under various working conditions, and improve the overall performance and safety of the vehicle.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] According to the first aspect of the present application, the present application provides a body structure for a vehicle, including: an upper body; a lower body, the lower body being connected to the bottom of the upper body; a lifting and locking mechanism, arranged between the upper body and the lower body, the lifting and locking mechanism having a first state and a second state and being able to switch between the first state and the second state. In the first state, the lifting and locking mechanism can drive the upper body to move up and down relative to the lower body. In the second state, the lifting and locking mechanism can lock and fix the upper body to the lower body.

[0009] According to the above technical means, by setting up a lifting and locking mechanism, the lifting drive and locking functions can be taken into account at the same time, that is, it can drive the upper body to lift and move, and can also lock and fix the upper body to the lower body, so that the entire body structure has anti-bending and torsion properties.

[0010] In a possible embodiment, the lifting and locking mechanism includes a first support portion and a second support portion, one of the first support portion and the second support portion is connected to the upper body, and the other is connected to the lower body, and the first support portion and the second support portion are movably connected.

[0011] According to the above technical means, by adopting a split support structure (ie, the first support part and the second support part), the assembly process can be simplified and maintenance and replacement can be facilitated.

[0012] In a possible embodiment, the first support portion is movably arranged in the second support portion, the end of the first support portion away from the lower body is connected to the upper body, and the end of the second support portion away from the upper body is connected to the lower body.

[0013] According to the above technical means, by arranging the first support part in a liftable and movable manner inside the second support part, the internal guide can be used to limit the lateral displacement, thereby improving the stability of the lifting process.

[0014] In one possible embodiment, the lifting and locking mechanism further includes a connecting portion and a positioning locking portion, wherein one of the connecting portion and the positioning locking portion is arranged at an end of the second support portion facing the upper vehicle body, and the other is arranged at an end of the first support portion away from the lower vehicle body, and the connecting portion and the positioning locking portion cooperate to place the lifting and locking mechanism in the second state.

[0015] According to the above technical means, by providing a connecting portion and a positioning locking portion, the upper body and the lower body can be firmly connected, that is, the load is transmitted through the rigid matching surface, thereby improving the torsional resistance and load-bearing capacity of the body.

[0016] In one possible embodiment, the connecting portion includes at least one connecting block, and the positioning locking portion includes a locking ring rotatably arranged on the second support portion, the locking ring being provided with an opening groove and a limiting groove arranged along the circumference of the locking ring and interconnected; the locking ring rotates relative to the second support portion to switch the lifting and locking mechanism between a first state and a second state; wherein, in the first state, the connecting block is located in the opening groove, and in the second state, at least a portion of the connecting block is located in the limiting groove.

[0017] According to the above technical means, the unlocking and locking of the connecting block is achieved by rotating the locking ring. When the connecting block is locked and limited by the locking ring, it can ensure that the connecting block cannot move at will after being locked, thereby improving the safety of the connection between the upper body and the lower body.

[0018] In a possible embodiment, a guide portion is provided on one of the end surface of the second supporting portion facing the upper vehicle body and the end surface of the upper vehicle body facing the lower vehicle body, and a docking portion cooperating with the guide portion is provided on the other.

[0019] According to the above technical means, by providing the guide part and the docking part, the upper body can be prevented from deflecting during the descent process, ensuring a unique lifting path. At the same time, the guide part can also be used for preliminary alignment during the initial descent.

[0020] In one possible embodiment, the guide portion includes at least one guide member and a positioning member, the guide member and the positioning member are arranged relatively to each other along the lifting direction of the first support portion, and the height of the guide member is higher than the positioning member; the projection area of ​​the positioning member in the reference plane is larger than the projection area of ​​the guide member in the reference plane, and the reference plane is a plane perpendicular to the direction from the upper body to the lower body.

[0021] This technology improves efficiency and reliability by first using guides for rapid alignment and then using positioning elements for stable load bearing. The positioning elements have a large projected area, enhancing load-bearing capacity and making them suitable for transferring the weight of the vehicle body.

[0022] In a possible embodiment, a protrusion is provided on one of the opposing surfaces of the upper body and the lower body, and a groove matching the protrusion is provided on the other opposing surface.

[0023] According to the above technical means, the concave-convex structure can limit relative rotation and enhance the overall anti-deformation ability of the vehicle body.

[0024] In a possible embodiment, the raised portion includes a first matching surface and a second matching surface that are oppositely disposed, and the groove portion includes a third matching surface and a fourth matching surface that are oppositely disposed. The first matching surface is in contact with the third matching surface, and the second matching surface is in contact with the fourth matching surface.

[0025] The above technical means can simultaneously bear vertical and lateral loads through multiple sets of matching surfaces, improving structural redundancy. At the same time, stress concentration can be reduced through surface-to-surface bonding, extending component life.

[0026] In one possible embodiment, the raised portion has a cross-sectional area that varies along its central axis, and the cross-sectional area decreases monotonically in a first direction parallel to the lifting and lowering movement direction; the groove portion has a cross-sectional area that varies along its central axis, and the cross-sectional area increases monotonically in a second direction parallel to the lifting and lowering movement direction; wherein the first direction is coaxial and opposite to the second direction.

[0027] According to the above technical means, a lateral squeezing force is generated by the wedge-shaped structure during locking, and the more it is pressed, the tighter it becomes, thereby improving the connection reliability.

[0028] In one possible embodiment, a first seal is provided between the top arm of the protrusion and the bottom wall of the groove; and / or a second seal is provided around the outer periphery of the protrusion, and the second seal abuts between the upper body and the lower body along the lifting direction.

[0029] According to the above technical means, by providing seals on the top and periphery of the raised portion, it is possible to effectively block the path for rainwater and dust to enter the vehicle. At the same time, the seals can also fill the gaps and reduce air turbulence noise during driving.

[0030] According to a second aspect of the present application, the present application provides a vehicle comprising the above-mentioned vehicle body structure.

[0031] Using these technologies, the same vehicle can switch between a "conventional sedan" and a "space-expanding vehicle," meeting diverse needs such as urban commuting and outdoor camping. Furthermore, the modular body structure allows for quick adaptation to different vehicle types, reducing manufacturing costs.

[0032] Beneficial effects of the present invention:

[0033] (1) The present invention provides a lifting and locking mechanism, which can simultaneously take into account the lifting drive and locking functions, that is, it can drive the upper body to move up and down, and can also lock and fix the upper body to the lower body, so that the entire body structure has the performance of resisting bending and torsion.

[0034] (2) When the upper vehicle body of the present invention is lowered, it can be guided into position by the guide member and finally fall into the positioning member, thereby ensuring the accuracy of the lifting trajectory and avoiding shaking. At the same time, it cooperates with the sealing member to tighten the seal, which can effectively improve the sealing and dustproof and waterproof performance of the entire vehicle.

[0035] (3) The upper body and the lower body of the present invention are engaged with each other through the protrusion and the slot, and are sealed in combination with the sealing member, which not only enables load transfer but also enhances the overall rigidity of the body and improves its anti-deformation capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A structural schematic diagram of a vehicle body structure provided by the present invention;

[0037] Figure 2 for Figure 1 A schematic diagram of the structure of the vehicle body structure shown is a schematic diagram of the structure after the upper vehicle body is raised relative to the lower vehicle body;

[0038] Figure 3 A schematic diagram of a vehicle door opening of a vehicle body structure provided by the present invention;

[0039] Figure 4 A schematic structural diagram of a second support portion provided by the present invention;

[0040] Figure 5 forFigure 4 a plan view of the second support part;

[0041] Figure 6 a structure diagram of a connecting block cooperating with a locking ring provided in the application;

[0042] Figure 7 for Figure 1 a sectional view of A-A in the vehicle body structure shown.

[0043] 100, vehicle body structure; 10, upper vehicle body; 20, lower vehicle body; 30, lifting locking mechanism; 31, first support part; 32, second support part; 33, connecting part; 331, connecting block; 301, open slot; 302, limiting slot; 34, positioning and locking part; 341, locking ring; 40, guide part; 41, guide piece; 42, positioning piece; 50, protruding part; 51, first matching surface; 52, second matching surface; 60, recessed part; 61, third matching surface; 62, fourth matching surface; 70, first sealing piece; 80, second sealing piece; 200, vehicle door; 300, cantilever support frame. DETAILED DESCRIPTION

[0044] Other advantages and effects of the present application can be easily understood by those skilled in the art from the above description of the preferred embodiments. The present application can also be implemented or applied in other different specific embodiments, and the details in the description can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, but not for limiting the protection scope of the present application.

[0045] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the diagrams, but not the number, shape and size of the components when actually implemented. The type, number and ratio of the components when actually implemented can be arbitrarily changed, and the layout type of the components can be more complex.

[0046] In the description of the embodiments of the present application, the term "and / or" only describes the association relationship of the associated objects, and can represent the existence of three relationships, for example, A and / or B, which can represent the existence of A alone, A and B simultaneously, and B alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects.

[0047] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two).

[0048] In some embodiments, the embodiments of the present application provide a vehicle. The embodiments of the present application do not specifically limit the specific type of vehicle. For example, the vehicle provided in the embodiments of the present application may be an electric vehicle, a hybrid vehicle, or a solar vehicle. Furthermore, the vehicle provided in the embodiments of the present application may also be a vehicle of different forms. For example, the vehicle provided in the embodiments of the present application may be a sedan, a sport utility vehicle (SUV), or a multi-purpose vehicle (MPV).

[0049] Next, see Figures 1-7 , the vehicle body structure provided by some embodiments of the present application will be described.

[0050] In some embodiments, see Figure 1 The present application proposes a vehicle body structure, which is applied to a vehicle. The vehicle body structure 100 includes an upper vehicle body 10 and a lower vehicle body 20, wherein the lower vehicle body 20 is connected to the lower portion of the upper vehicle body 10. A lifting and locking mechanism 30 is provided between the upper vehicle body 10 and the lower vehicle body 20. The lifting and locking mechanism 30 has a first state and a second state and can switch between the first state and the second state. In the first state, the lifting and locking mechanism 30 can drive the upper vehicle body 10 to move up and down relative to the lower vehicle body 20. In the second state, the lifting and locking mechanism 30 can lock and fix the upper vehicle body 10 to the lower vehicle body 20. It should be noted that the first state described in this embodiment refers to a state in which the lifting and locking mechanism unlocks the locking connection between the upper vehicle body 10 and the lower vehicle body 20; the second state refers to a state in which the lifting and locking mechanism 30 locks the upper vehicle body 10 and the lower vehicle body 20.

[0051] It should be noted that the upper body described in this embodiment may include multiple parts, including the upper body side panels, the front windshield, the roof crossbars and their glass, and the rear quarter windows. The upper body and the lower body may be separated by the decorative parts below the quarter window sill line.

[0052] It should be noted that the number of the lifting and locking mechanism 30 described in this embodiment is at least one, and the specific number can be selected according to actual conditions (such as four lifting and locking mechanisms 30), which is not limited here.

[0053] For example, when one lifting and locking mechanism 30 is used, the lifting and locking mechanism 30 may be disposed between the B-pillar and the C-pillar of the vehicle body structure 100 .

[0054] For example, to achieve a smooth rise of the upper vehicle body, four lifting and locking mechanisms 30 may be used, and the four lifting and locking mechanisms 30 may be symmetrically arranged in pairs under the A-pillar and D-pillar of the vehicle body structure 100. Furthermore, this arrangement of lifting and locking mechanisms 30 may also be applied to vehicle bodies without B-pillars.

[0055] For example, in order not to affect the separation of the upper body, the door 200 can also be set on the lower body 20, and the door 200 can be connected to the lower body 20 through the cantilever support 300. It is understandable that the door 200 can be opened and closed normally through the cantilever support 300.

[0056] On this basis, by controlling the lifting and locking mechanism 30 to raise the upper body, the vertical space inside the vehicle can be increased, making the interior space more flexible and adaptable. For example, by increasing the vertical space inside the vehicle, drivers and passengers can stand in and out of the passenger compartment, or the vehicle can be converted into a bed for rest when camping outdoors. In addition, it can also be used to load bulky items.

[0057] In addition, by controlling the lifting and locking mechanism to lower the upper body and restore it, the upper and lower bodies can be combined to restore to "conventional car mode", which will not affect daily use such as urban commuting and can achieve a flexible experience of "one car for multiple uses".

[0058] In some embodiments, see Figure 2 The lifting and locking mechanism 30 includes a first support portion 31 and a second support portion 32 , one of the first support portion 31 and the second support portion 32 is connected to the upper body 10 , and the other is connected to the lower body 20 , and the first support portion 31 and the second support portion 32 are movably connected.

[0059] For example, the first support portion 31 is connected to the upper body 10, and the second support portion 32 is connected to the lower body 20. The first support portion 31 and the second support portion 32 are movably connected. The upper body 10 can be driven to rise or fall by controlling the movable movement of the first support portion 31 relative to the second support portion 32 or the relative movement of the second support portion 32 relative to the first support portion 31.

[0060] For example, the first support portion 31 is connected to the lower body 20, the second support portion 32 is connected to the upper body 10, and the first support portion 31 and the second support portion 32 are movably connected. The upper body 10 can be driven to rise or fall by controlling the movable movement of the first support portion 31 relative to the second support portion 32 or the relative movement of the second support portion 32 relative to the first support portion 31.

[0061] In some embodiments, see Figure 2The first support portion 31 is movably arranged in the second support portion 32 , and the end of the first support portion 31 away from the lower body 20 is connected to the upper body 10 , and the end of the second support portion 32 away from the upper body 10 is connected to the lower body 20 .

[0062] On this basis, the upper body 10 can be moved up and down by driving the first support part 31, thereby changing the distance between the upper body 10 and the lower body 20, and then changing the interior space of the car to provide a more diverse car life experience.

[0063] Illustratively, the second support portion 32 described in this embodiment may be a box having a mounting chamber, and the first support portion 31 may be a pneumatic cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0064] For example, the second support portion 32 described in this embodiment can be a hydraulic cylinder body, and the first support portion 31 can be a piston rod. The piston rod is disposed within the hydraulic cylinder body so as to be movable and retractable. The piston rod is driven by a fluid (e.g., hydraulic oil) to control the raising and lowering of the upper body 10. The piston rod can be a single section, two retractable sections, or multiple retractable sections. The specific number of sections of the piston rod can be adaptively selected and set according to the required height of the upper body 10 (e.g., a two-section retractable piston rod), and is not limited here.

[0065] For example, the second support portion 32 described in this embodiment can be a mounting box containing a gear and a drive motor, wherein the gear's transmission shaft is connected to the output terminal of the drive motor. The first support portion 31 can be a rack, which is movable and arranged within the mounting box and meshes with the gear. It will be understood that the drive motor drives the gear, which in turn drives the rack to move upward and downward, thereby controlling the elevation of the upper body 10.

[0066] In some embodiments, see Figure 1 、 Figure 4 and Figure 6 The lifting and locking mechanism 30 also includes a connecting portion 33 and a positioning locking portion 34, wherein one of the connecting portion 33 and the positioning locking portion 34 is provided at the end of the second support portion 32 facing the upper vehicle body 10, and the other is provided at the end of the first support portion 31 away from the lower vehicle body 20, and the connecting portion 33 and the positioning locking portion 34 cooperate to put the lifting and locking mechanism 30 in the second state.

[0067] For example, the connecting portion 33 described in this embodiment can be fixedly disposed on the end of the second support portion 32 facing the upper body 10, and the positioning locking portion 34 can be fixedly disposed on the end of the first support portion 31 away from the lower body 20. It will be understood that when the upper body 10 is lowered and reset, the connecting portion 33 and the positioning locking portion 34 cooperate to place the lifting and locking mechanism 30 in the second state, thereby locking the upper body 10 and the lower body 20.

[0068] For example, the positioning locking portion 34 described in this embodiment can be fixedly disposed on the end of the second support portion 32 facing the upper body 10, and the connecting portion 33 can be fixedly disposed on the end of the first support portion 31 away from the lower body 20. It will be understood that when the upper body 10 is lowered and reset, the connecting portion 33 and the positioning locking portion 34 cooperate to place the lifting locking mechanism 30 in the second state, thereby locking the upper body 10 and the lower body 20.

[0069] It should be noted that the connecting portion 33 described in this embodiment may be a suction plate of an electromagnetic lock, and the positioning locking portion 34 may be a lock body of the electromagnetic lock, which is provided with a magnetic field. It is understood that when the upper body 10 is lowered and reset, the electromagnetic lock is energized and the suction plate is attracted and connected via the magnetic field of the lock body, thereby locking the upper body 10 and the lower body 20.

[0070] In order to clearly illustrate the above embodiment, in some embodiments, see Figure 4 and Figure 6 The connecting portion 33 includes at least one connecting block 331, and the positioning locking portion 34 includes a locking ring 341 rotatably provided on the second supporting portion 32. It should be noted that the locking ring 341 described in this embodiment is rotatably provided on the end of the second supporting portion 32 facing the upper vehicle body 10.

[0071] Exemplarily, there may be one, two, three, four, five, etc. connection blocks 331 . The specific number may be selected according to actual conditions (such as four connection blocks 331 ), which is not limited here.

[0072] Optionally, the connecting portion 33 may include four connecting blocks 331 and a connecting ring. The four connecting blocks 331 are distributed around the periphery of the connecting ring and are integrally connected to the connecting ring. The connecting ring can be fixed to the end of the second support portion 32 facing the upper body 10 or the end of the first support portion 31 away from the lower body 20.

[0073] In addition, the locking ring 341 is provided with an opening groove 301 and a limiting groove 302 arranged along the circumference of the locking ring 341 and communicating with each other. The number of the opening grooves 301 is equal to the number of the connecting blocks 331 and they are distributed in a one-to-one correspondence.

[0074] It should be noted that the opening slot 301 described in this embodiment is an opening extending through the end surface of the second support portion 32 in the lifting direction, thereby allowing the first support portion 31 to be lifted relative to the second support portion 32. The limiting slot 302 is vertically connected to the opening slot 301, and the end of the limiting slot 302 away from the opening slot 301 extends along the circumference of the locking ring 341 to limit the lifting of the first support portion 31 relative to the second support portion 32 (i.e., when the connecting block 331 is screwed into the limiting slot 302).

[0075] In addition, the locking ring 341 can rotate relative to the second support portion 32 to switch the lifting and locking mechanism between a first state and a second state. In the first state, the connecting block 331 is located within the opening slot 301, and in the second state, at least a portion of the connecting block 331 is located within the limiting slot 302. It should be noted that in this embodiment, at least a portion of the connecting block 331 can be screwed into the limiting slot 302 to achieve a locked connection between the upper body 10 and the lower body 20, or the entire connecting block 331 can be screwed into the limiting slot 302. When the connecting block 331 is fully screwed into the limiting slot 302, as opposed to when only a portion of the connecting block 331 is screwed into the limiting slot 302, the locking strength of the upper body 10 and the lower body 20 is stronger, the connection between the upper body 10 and the lower body 20 is more stable, and the connection has greater resistance to body bending and torsion.

[0076] It should be noted that a driving device is provided in the second support portion 32 described in this embodiment to drive the locking ring 341 to switch and rotate forward and reverse. The driving device may include a bidirectional servo motor with a self-locking function (which can switch and rotate the output shaft forward and reverse), a driving gear connected to the output shaft of the servo motor, and an outer gear ring sleeved and fixed on the locking ring 341, and the driving gear is meshed with the outer gear ring.

[0077] It will be appreciated that the servo motor is controlled to rotate the drive gear, which in turn drives the outer ring gear to rotate the locking ring 341. When the locking ring 341 is driven to rotate in the forward direction, the connecting block 331 rotates from the opening slot 301 into the limiting slot 302, restricting the rise and fall of the first support portion 31 relative to the second support portion 32 and locking the upper body 10 to the lower body 20. When the locking ring 341 is driven to rotate in the reverse direction, the connecting block 331 rotates out of the limiting slot 302 and into the opening slot 301, allowing the first support portion 31 to rise and fall relative to the second support portion 32, thereby driving the upper body 10 to rise and fall, thereby changing the interior space of the vehicle.

[0078] As a possible scenario, the driving gear described in this embodiment can be replaced with a worm, and the outer ring gear can be replaced with a worm wheel. Self-locking can be achieved through the engagement of the worm wheel and worm, so as to prevent the locking ring 341 from moving in the rotation direction, thereby ensuring that the upper body 10 and the lower body 20 are locked more firmly.

[0079] In some embodiments, see Figure 2 and Figure 4 A guide portion 40 is provided on one of the end surface of the second support portion 32 facing the upper body 10 and the end surface of the upper body 10 facing the lower body 20 , and a docking portion cooperating with the guide portion 40 is provided on the other.

[0080] For example, the guide portion 40 may be provided on an end surface of the second support portion 32 facing the upper vehicle body 10 , and the docking portion may be provided on an end surface of the upper vehicle body 10 facing the lower vehicle body 20 .

[0081] For example, the docking portion may be provided on an end surface of the second support portion 32 facing the upper vehicle body 10 , and the guide portion 40 may be provided on an end surface of the upper vehicle body 10 facing the lower vehicle body 20 .

[0082] It should be noted that the guide portion 40 described in this embodiment may be a conical boss, and the docking portion may be a conical groove.

[0083] On this basis, by providing the guide portion 40 and the docking portion, the upper body 10 can be prevented from deflecting during the descent process, ensuring that the upper body 10 can be accurately docked with the lower body during the descent process.

[0084] In order to clearly illustrate the above embodiment, in some embodiments, see Figure 2 and Figure 4 The guide portion 40 includes at least one guide member 41 and a positioning member 42. The guide member 41 and the positioning member 42 are arranged opposite each other along the lifting direction of the first support portion 31, and the guide member 41 is higher than the positioning member 42. It should be noted that the guide member 41 described in this embodiment can be one or more, and the multiple guide members 41 can be two, three, or four guide members 41, etc. The specific number can be selected according to actual circumstances (for example, two guide members 41) and is not limited here. The positioning member 42 can also be one or more, and the specific number is not detailed here.

[0085] In addition, the projection area of ​​the positioning member 42 in the reference plane is larger than the projection area of ​​the guide member 41 in the reference plane. The reference plane is a plane perpendicular to the direction from the upper body 10 to the lower body 20 .

[0086] It should be noted that the guide member 41 described in this embodiment may be a guide pin, and the positioning member 42 may be a positioning platform, and the guide pin may be in a tapered column shape. The docking portion may be composed of a guide groove and a positioning groove, wherein the guide member 41 docks with the guide groove, and the positioning member 42 docks with the positioning groove.

[0087] As an example, the following description uses the example of the guide portion 40 being disposed on the end surface of the second support portion 32 facing the upper body 10, and the docking portion being disposed on the end surface of the upper body 10 facing the lower body 20. When the upper body 10 descends, because the guide member 41 is higher than the positioning member 42, it first enters the guide groove on the upper body 10 for guidance. This allows the upper body 10 to be aligned with the lower body 20, and the connecting block 331 to be aligned with the opening groove 301. Finally, the positioning member 42 enters the positioning groove to stably support the upper body 10. This means that the guide member 41 first quickly aligns the upper body 10, and then the positioning member 42 stabilizes the support, improving the efficiency and reliability of the docking between the upper body 10 and the lower body 20. Because the positioning member 42 has a large projected area and a strong load-bearing capacity, it is suitable for transferring weight from the vehicle body.

[0088] In some embodiments, see Figure 2 and Figure 7 A protrusion 50 is provided on one of the opposing surfaces of the upper body 10 and the lower body 20 , and a groove 60 matching the protrusion 50 is provided on the other surface.

[0089] It should be noted that the raised portion 50 described in this embodiment can be a continuous raised portion 50, i.e., a strip-shaped protrusion. It can also be a discrete raised portion 50, i.e., multiple protrusions arranged in a linear array. The groove portion 60 can be a groove that penetrates at both ends, a groove that is sealed on all sides, or multiple grooves arranged in a linear array. The multiple grooves are distributed in a one-to-one correspondence with the multiple protrusions. The specific form of the raised portion 50 and the groove portion 60 can be selected according to actual circumstances and is not limited here.

[0090] On this basis, through the engagement of the raised portion 50 and the groove portion 60, the loads on the upper body 10 and the lower body 20 in the vertical direction (lifting direction), lateral direction (body width direction) and longitudinal direction (body length direction) can be effectively transmitted, significantly improving the overall bending and torsional resistance of the body, avoiding the stress concentration that may be caused by traditional single-point connections, and thus enhancing the overall deformation resistance of the body.

[0091] In addition, the geometric shapes of the protrusion 50 and the groove 60 can also provide contact guidance during the lifting process. For example, the protrusion 50 first contacts the edge of the groove 60, guiding the upper body 10 to descend along a predetermined trajectory and finally fall into the positioning member 42.

[0092] In order to clearly illustrate the above embodiment, in some embodiments, see Figure 2 and Figure 7 The raised portion 50 includes a first matching surface 51 and a second matching surface 52 that are opposite to each other, and the groove portion 60 includes a third matching surface 61 and a fourth matching surface 62 that are opposite to each other. The first matching surface 51 is in contact with the third matching surface 61, and the second matching surface 52 is in contact with the fourth matching surface 62.

[0093] It can be understood that the first matching surface 51 is fitted with the third matching surface 61, and the second matching surface 52 is fitted with the fourth matching surface 62, which can form a surface contact force transmission path, thereby simultaneously bearing vertical and lateral loads through multiple sets of matching surfaces, thereby improving structural redundancy, reducing stress concentration, and extending component life.

[0094] In addition, the surface contact between the protrusion 50 and the groove 60 can increase the damping of the connection interface, suppress the relative vibration between the upper body 10 and the lower body 20, and reduce abnormal noise especially when the vehicle passes through a bumpy road.

[0095] In some embodiments, see Figure 2 and Figure 7 The protrusion 50 has a cross-sectional area that changes along its central axis, and the cross-sectional area decreases monotonically in a first direction parallel to the lifting movement direction.

[0096] The groove portion 60 has a cross-sectional area that changes along its central axis, and the cross-sectional area increases monotonically in a second direction parallel to the lifting direction, wherein the first direction is coaxial with and opposite to the second direction.

[0097] It can be understood that by designing the cross-sectional area of ​​the raised portion to decrease monotonically along the lifting direction and the groove portion to increase accordingly, when the upper body 10 is locked on the lower body 20, a lateral extrusion force can be generated, forming a "the more you press, the tighter it gets", further enhancing the reliability of the connection, and is particularly suitable for dynamic load scenarios when the vehicle is driving.

[0098] In some embodiments, see Figure 2 and Figure 7 A first sealing member 70 is provided between the top arm of the raised portion 50 and the bottom wall of the groove portion 60. And / or, a second sealing member 80 is sleeved on the outer periphery of the raised portion 50, and the second sealing member 80 abuts between the upper body 10 and the lower body 20 along the lifting direction.

[0099] It should be noted that the first sealing member 70 described in this embodiment may be a sealing strip, and the second sealing member 80 may be a sealing ring.

[0100] Exemplarily, a first sealing member 70 (sealing strip) is provided between the top arm of the raised portion and the bottom wall of the groove portion, which can block rainwater and dust from intruding into the vehicle through the top gap.

[0101] For example, a second sealing member 80 (sealing ring) is sleeved on the outer periphery of the raised portion, and after being compressed, a circumferential seal is formed, which can effectively reduce wind noise and air leakage during driving.

[0102] The above embodiments are only the preferred embodiments of the present application for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. A vehicle body structure for a vehicle, characterized in that: include: Upper body (10); a lower vehicle body (20), the lower vehicle body (20) being connected to the lower side of the upper vehicle body (10); A lifting and locking mechanism (30) is provided between the upper vehicle body (10) and the lower vehicle body (20). The lifting and locking mechanism (30) has a first state and a second state and can be switched between the first state and the second state. In the first state, the lifting and locking mechanism (30) can drive the upper vehicle body (10) to move up and down relative to the lower vehicle body (20). In the second state, the lifting and locking mechanism (30) can lock and fix the upper vehicle body (10) to the lower vehicle body (20).

2. The vehicle body structure according to claim 1, wherein: The lifting and locking mechanism (30) comprises a first supporting portion (31) and a second supporting portion (32), one of the first supporting portion (31) and the second supporting portion (32) being connected to the upper vehicle body (10), and the other being connected to the lower vehicle body (20), and the first supporting portion (31) and the second supporting portion (32) being movably connected.

3. The vehicle body structure according to claim 2, characterized in that: The first support portion (31) is arranged in the second support portion (32) in a manner that allows it to be lifted and moved. The end of the first support portion (31) away from the lower vehicle body (20) is connected to the upper vehicle body (10), and the end of the second support portion (32) away from the upper vehicle body (10) is connected to the lower vehicle body (20).

4. The vehicle body structure according to claim 2, wherein: The lifting and locking mechanism (30) further comprises a connecting portion (33) and a positioning locking portion (34), wherein one of the connecting portion (33) and the positioning locking portion (34) is arranged at an end of the second supporting portion (32) facing the upper vehicle body (10), and the other is arranged at an end of the first supporting portion (31) away from the lower vehicle body (20), and the connecting portion (33) and the positioning locking portion (34) cooperate to place the lifting and locking mechanism (30) in the second state.

5. The vehicle body structure according to claim 4, characterized in that: The connecting portion (33) includes at least one connecting block (331), and the positioning locking portion (34) includes a locking ring (341) rotatably arranged on the second supporting portion (32), and the locking ring (341) is provided with an opening groove (301) and a limiting groove (302) arranged along the circumference of the locking ring (341) and communicating with each other; The locking ring (341) rotates relative to the second supporting portion (32) to switch the lifting locking mechanism (30) between the first state and the second state; wherein, In the first state, the connecting block (331) is located in the opening groove (301), and in the second state, at least a portion of the connecting block (331) is located in the limiting groove (302).

6. The vehicle body structure according to claim 3, characterized in that: The guide portion (40) is provided on one of the end surfaces of the second supporting portion (32) facing the upper vehicle body (10) and the end surface of the upper vehicle body (10) facing the lower vehicle body (20), and the other end surface is provided with a docking portion that cooperates with the guide portion (40).

7. The vehicle body structure according to claim 6, characterized in that: The guide portion (40) includes at least one guide member (41) and a positioning member (42), wherein the guide member (41) and the positioning member (42) are arranged relative to each other along the lifting direction of the first support portion (31), and the height of the guide member (41) is higher than that of the positioning member (42); The projection area of ​​the positioning member (42) in the reference plane is larger than the projection area of ​​the guide member (41) in the reference plane, and the reference plane is a plane perpendicular to the direction from the upper body (10) to the lower body (20).

8. The vehicle body structure according to claim 1, wherein: A protrusion (50) is provided on one of the opposing surfaces of the upper vehicle body (10) and the lower vehicle body (20), and a groove (60) matching the protrusion (50) is provided on the other surface.

9. The vehicle body structure according to claim 8, characterized in that: The raised portion (50) includes a first matching surface (51) and a second matching surface (52) that are arranged opposite to each other, and the groove portion (60) includes a third matching surface (61) and a fourth matching surface (62) that are arranged opposite to each other, the first matching surface (51) is in contact with the third matching surface (61), and the second matching surface (52) is in contact with the fourth matching surface (62).

10. The vehicle body structure according to claim 8, wherein: The protrusion (50) has a cross-sectional area that changes along its central axis, and the cross-sectional area decreases monotonically in a first direction parallel to the lifting direction; The groove portion (60) has a cross-sectional area that changes along its central axis, and the cross-sectional area increases monotonically in a second direction parallel to the lifting direction; wherein the first direction is coaxial with and opposite to the second direction.

11. The vehicle body structure according to claim 9, wherein: A first sealing member (70) is provided between the top arm of the protruding portion (50) and the bottom wall of the groove portion (60); and / or, A second sealing member (80) is sleeved on the outer periphery of the raised portion (50), and the second sealing member (80) abuts between the upper vehicle body (10) and the lower vehicle body (20) along the lifting direction.

12. A vehicle, characterized in that: The vehicle body structure (100) comprises any one of claims 1 to 11.

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